* ``` * * See https://github.com/angular/angular.js/pull/14610#issuecomment-219401099 for more information. * * @param {string} text The text with markup to interpolate. * @param {boolean=} mustHaveExpression if set to true then the interpolation string must have * embedded expression in order to return an interpolation function. Strings with no * embedded expression will return null for the interpolation function. * @param {string=} trustedContext when provided, the returned function passes the interpolated * result through {@link ng.$sce#getTrusted $sce.getTrusted(interpolatedResult, * trustedContext)} before returning it. Refer to the {@link ng.$sce $sce} service that * provides Strict Contextual Escaping for details. * @param {boolean=} allOrNothing if `true`, then the returned function returns undefined * unless all embedded expressions evaluate to a value other than `undefined`. * @returns {function(context)} an interpolation function which is used to compute the * interpolated string. The function has these parameters: * * - `context`: evaluation context for all expressions embedded in the interpolated text */ function $interpolate(text, mustHaveExpression, trustedContext, allOrNothing) { // Provide a quick exit and simplified result function for text with no interpolation if (!text.length || text.indexOf(startSymbol) === -1) { var constantInterp; if (!mustHaveExpression) { var unescapedText = unescapeText(text); constantInterp = valueFn(unescapedText); constantInterp.exp = text; constantInterp.expressions = []; constantInterp.$$watchDelegate = constantWatchDelegate; } return constantInterp; } allOrNothing = !!allOrNothing; var startIndex, endIndex, index = 0, expressions = [], parseFns = [], textLength = text.length, exp, concat = [], expressionPositions = []; while (index < textLength) { if (((startIndex = text.indexOf(startSymbol, index)) != -1) && ((endIndex = text.indexOf(endSymbol, startIndex + startSymbolLength)) != -1)) { if (index !== startIndex) { concat.push(unescapeText(text.substring(index, startIndex))); } exp = text.substring(startIndex + startSymbolLength, endIndex); expressions.push(exp); parseFns.push($parse(exp, parseStringifyInterceptor)); index = endIndex + endSymbolLength; expressionPositions.push(concat.length); concat.push(''); } else { // we did not find an interpolation, so we have to add the remainder to the separators array if (index !== textLength) { concat.push(unescapeText(text.substring(index))); } break; } } // Concatenating expressions makes it hard to reason about whether some combination of // concatenated values are unsafe to use and could easily lead to XSS. By requiring that a // single expression be used for iframe[src], object[src], etc., we ensure that the value // that's used is assigned or constructed by some JS code somewhere that is more testable or // make it obvious that you bound the value to some user controlled value. This helps reduce // the load when auditing for XSS issues. if (trustedContext && concat.length > 1) { $interpolateMinErr.throwNoconcat(text); } if (!mustHaveExpression || expressions.length) { var compute = function(values) { for (var i = 0, ii = expressions.length; i < ii; i++) { if (allOrNothing && isUndefined(values[i])) return; concat[expressionPositions[i]] = values[i]; } return concat.join(''); }; var getValue = function(value) { return trustedContext ? $sce.getTrusted(trustedContext, value) : $sce.valueOf(value); }; return extend(function interpolationFn(context) { var i = 0; var ii = expressions.length; var values = new Array(ii); try { for (; i < ii; i++) { values[i] = parseFns[i](context); } return compute(values); } catch (err) { $exceptionHandler($interpolateMinErr.interr(text, err)); } }, { // all of these properties are undocumented for now exp: text, //just for compatibility with regular watchers created via $watch expressions: expressions, $$watchDelegate: function(scope, listener) { var lastValue; return scope.$watchGroup(parseFns, function interpolateFnWatcher(values, oldValues) { var currValue = compute(values); if (isFunction(listener)) { listener.call(this, currValue, values !== oldValues ? lastValue : currValue, scope); } lastValue = currValue; }); } }); } function parseStringifyInterceptor(value) { try { value = getValue(value); return allOrNothing && !isDefined(value) ? value : stringify(value); } catch (err) { $exceptionHandler($interpolateMinErr.interr(text, err)); } } } /** * @ngdoc method * @name $interpolate#startSymbol * @description * Symbol to denote the start of expression in the interpolated string. Defaults to `{{`. * * Use {@link ng.$interpolateProvider#startSymbol `$interpolateProvider.startSymbol`} to change * the symbol. * * @returns {string} start symbol. */ $interpolate.startSymbol = function() { return startSymbol; }; /** * @ngdoc method * @name $interpolate#endSymbol * @description * Symbol to denote the end of expression in the interpolated string. Defaults to `}}`. * * Use {@link ng.$interpolateProvider#endSymbol `$interpolateProvider.endSymbol`} to change * the symbol. * * @returns {string} end symbol. */ $interpolate.endSymbol = function() { return endSymbol; }; return $interpolate; }]; } function $IntervalProvider() { this.$get = ['$rootScope', '$window', '$q', '$$q', '$browser', function($rootScope, $window, $q, $$q, $browser) { var intervals = {}; /** * @ngdoc service * @name $interval * * @description * Angular's wrapper for `window.setInterval`. The `fn` function is executed every `delay` * milliseconds. * * The return value of registering an interval function is a promise. This promise will be * notified upon each tick of the interval, and will be resolved after `count` iterations, or * run indefinitely if `count` is not defined. The value of the notification will be the * number of iterations that have run. * To cancel an interval, call `$interval.cancel(promise)`. * * In tests you can use {@link ngMock.$interval#flush `$interval.flush(millis)`} to * move forward by `millis` milliseconds and trigger any functions scheduled to run in that * time. * *

* **Note**: Intervals created by this service must be explicitly destroyed when you are finished * with them. In particular they are not automatically destroyed when a controller's scope or a * directive's element are destroyed. * You should take this into consideration and make sure to always cancel the interval at the * appropriate moment. See the example below for more details on how and when to do this. *

* * @param {function()} fn A function that should be called repeatedly. * @param {number} delay Number of milliseconds between each function call. * @param {number=} [count=0] Number of times to repeat. If not set, or 0, will repeat * indefinitely. * @param {boolean=} [invokeApply=true] If set to `false` skips model dirty checking, otherwise * will invoke `fn` within the {@link ng.$rootScope.Scope#$apply $apply} block. * @param {...*=} Pass additional parameters to the executed function. * @returns {promise} A promise which will be notified on each iteration. * * @example * * * * *

* Date format:

* Current time is: *

* Blood 1 : {{blood_1}} * Blood 2 : {{blood_2}} * * * *

* * * */ function interval(fn, delay, count, invokeApply) { var hasParams = arguments.length > 4, args = hasParams ? sliceArgs(arguments, 4) : [], setInterval = $window.setInterval, clearInterval = $window.clearInterval, iteration = 0, skipApply = (isDefined(invokeApply) && !invokeApply), deferred = (skipApply ? $$q : $q).defer(), promise = deferred.promise; count = isDefined(count) ? count : 0; promise.$$intervalId = setInterval(function tick() { if (skipApply) { $browser.defer(callback); } else { $rootScope.$evalAsync(callback); } deferred.notify(iteration++); if (count > 0 && iteration >= count) { deferred.resolve(iteration); clearInterval(promise.$$intervalId); delete intervals[promise.$$intervalId]; } if (!skipApply) $rootScope.$apply(); }, delay); intervals[promise.$$intervalId] = deferred; return promise; function callback() { if (!hasParams) { fn(iteration); } else { fn.apply(null, args); } } } /** * @ngdoc method * @name $interval#cancel * * @description * Cancels a task associated with the `promise`. * * @param {Promise=} promise returned by the `$interval` function. * @returns {boolean} Returns `true` if the task was successfully canceled. */ interval.cancel = function(promise) { if (promise && promise.$$intervalId in intervals) { intervals[promise.$$intervalId].reject('canceled'); $window.clearInterval(promise.$$intervalId); delete intervals[promise.$$intervalId]; return true; } return false; }; return interval; }]; } /** * @ngdoc service * @name $jsonpCallbacks * @requires $window * @description * This service handles the lifecycle of callbacks to handle JSONP requests. * Override this service if you wish to customise where the callbacks are stored and * how they vary compared to the requested url. */ var $jsonpCallbacksProvider = function() { this.$get = ['$window', function($window) { var callbacks = $window.angular.callbacks; var callbackMap = {}; function createCallback(callbackId) { var callback = function(data) { callback.data = data; callback.called = true; }; callback.id = callbackId; return callback; } return { /** * @ngdoc method * @name $jsonpCallbacks#createCallback * @param {string} url the url of the JSONP request * @returns {string} the callback path to send to the server as part of the JSONP request * @description * {@link $httpBackend} calls this method to create a callback and get hold of the path to the callback * to pass to the server, which will be used to call the callback with its payload in the JSONP response. */ createCallback: function(url) { var callbackId = '_' + (callbacks.$$counter++).toString(36); var callbackPath = 'angular.callbacks.' + callbackId; var callback = createCallback(callbackId); callbackMap[callbackPath] = callbacks[callbackId] = callback; return callbackPath; }, /** * @ngdoc method * @name $jsonpCallbacks#wasCalled * @param {string} callbackPath the path to the callback that was sent in the JSONP request * @returns {boolean} whether the callback has been called, as a result of the JSONP response * @description * {@link $httpBackend} calls this method to find out whether the JSONP response actually called the * callback that was passed in the request. */ wasCalled: function(callbackPath) { return callbackMap[callbackPath].called; }, /** * @ngdoc method * @name $jsonpCallbacks#getResponse * @param {string} callbackPath the path to the callback that was sent in the JSONP request * @returns {*} the data received from the response via the registered callback * @description * {@link $httpBackend} calls this method to get hold of the data that was provided to the callback * in the JSONP response. */ getResponse: function(callbackPath) { return callbackMap[callbackPath].data; }, /** * @ngdoc method * @name $jsonpCallbacks#removeCallback * @param {string} callbackPath the path to the callback that was sent in the JSONP request * @description * {@link $httpBackend} calls this method to remove the callback after the JSONP request has * completed or timed-out. */ removeCallback: function(callbackPath) { var callback = callbackMap[callbackPath]; delete callbacks[callback.id]; delete callbackMap[callbackPath]; } }; }]; }; /** * @ngdoc service * @name $locale * * @description * $locale service provides localization rules for various Angular components. As of right now the * only public api is: * * * `id` – `{string}` – locale id formatted as `languageId-countryId` (e.g. `en-us`) */ var PATH_MATCH = /^([^\?#]*)(\?([^#]*))?(#(.*))?$/, DEFAULT_PORTS = {'http': 80, 'https': 443, 'ftp': 21}; var $locationMinErr = minErr('$location'); /** * Encode path using encodeUriSegment, ignoring forward slashes * * @param {string} path Path to encode * @returns {string} */ function encodePath(path) { var segments = path.split('/'), i = segments.length; while (i--) { segments[i] = encodeUriSegment(segments[i]); } return segments.join('/'); } function parseAbsoluteUrl(absoluteUrl, locationObj) { var parsedUrl = urlResolve(absoluteUrl); locationObj.$$protocol = parsedUrl.protocol; locationObj.$$host = parsedUrl.hostname; locationObj.$$port = toInt(parsedUrl.port) || DEFAULT_PORTS[parsedUrl.protocol] || null; } function parseAppUrl(relativeUrl, locationObj) { var prefixed = (relativeUrl.charAt(0) !== '/'); if (prefixed) { relativeUrl = '/' + relativeUrl; } var match = urlResolve(relativeUrl); locationObj.$$path = decodeURIComponent(prefixed && match.pathname.charAt(0) === '/' ? match.pathname.substring(1) : match.pathname); locationObj.$$search = parseKeyValue(match.search); locationObj.$$hash = decodeURIComponent(match.hash); // make sure path starts with '/'; if (locationObj.$$path && locationObj.$$path.charAt(0) != '/') { locationObj.$$path = '/' + locationObj.$$path; } } function startsWith(haystack, needle) { return haystack.lastIndexOf(needle, 0) === 0; } /** * * @param {string} base * @param {string} url * @returns {string} returns text from `url` after `base` or `undefined` if it does not begin with * the expected string. */ function stripBaseUrl(base, url) { if (startsWith(url, base)) { return url.substr(base.length); } } function stripHash(url) { var index = url.indexOf('#'); return index == -1 ? url : url.substr(0, index); } function trimEmptyHash(url) { return url.replace(/(#.+)|#$/, '$1'); } function stripFile(url) { return url.substr(0, stripHash(url).lastIndexOf('/') + 1); } /* return the server only (scheme://host:port) */ function serverBase(url) { return url.substring(0, url.indexOf('/', url.indexOf('//') + 2)); } /** * LocationHtml5Url represents an url * This object is exposed as $location service when HTML5 mode is enabled and supported * * @constructor * @param {string} appBase application base URL * @param {string} appBaseNoFile application base URL stripped of any filename * @param {string} basePrefix url path prefix */ function LocationHtml5Url(appBase, appBaseNoFile, basePrefix) { this.$$html5 = true; basePrefix = basePrefix || ''; parseAbsoluteUrl(appBase, this); /** * Parse given html5 (regular) url string into properties * @param {string} url HTML5 url * @private */ this.$$parse = function(url) { var pathUrl = stripBaseUrl(appBaseNoFile, url); if (!isString(pathUrl)) { throw $locationMinErr('ipthprfx', 'Invalid url "{0}", missing path prefix "{1}".', url, appBaseNoFile); } parseAppUrl(pathUrl, this); if (!this.$$path) { this.$$path = '/'; } this.$$compose(); }; /** * Compose url and update `absUrl` property * @private */ this.$$compose = function() { var search = toKeyValue(this.$$search), hash = this.$$hash ? '#' + encodeUriSegment(this.$$hash) : ''; this.$$url = encodePath(this.$$path) + (search ? '?' + search : '') + hash; this.$$absUrl = appBaseNoFile + this.$$url.substr(1); // first char is always '/' }; this.$$parseLinkUrl = function(url, relHref) { if (relHref && relHref[0] === '#') { // special case for links to hash fragments: // keep the old url and only replace the hash fragment this.hash(relHref.slice(1)); return true; } var appUrl, prevAppUrl; var rewrittenUrl; if (isDefined(appUrl = stripBaseUrl(appBase, url))) { prevAppUrl = appUrl; if (isDefined(appUrl = stripBaseUrl(basePrefix, appUrl))) { rewrittenUrl = appBaseNoFile + (stripBaseUrl('/', appUrl) || appUrl); } else { rewrittenUrl = appBase + prevAppUrl; } } else if (isDefined(appUrl = stripBaseUrl(appBaseNoFile, url))) { rewrittenUrl = appBaseNoFile + appUrl; } else if (appBaseNoFile == url + '/') { rewrittenUrl = appBaseNoFile; } if (rewrittenUrl) { this.$$parse(rewrittenUrl); } return !!rewrittenUrl; }; } /** * LocationHashbangUrl represents url * This object is exposed as $location service when developer doesn't opt into html5 mode. * It also serves as the base class for html5 mode fallback on legacy browsers. * * @constructor * @param {string} appBase application base URL * @param {string} appBaseNoFile application base URL stripped of any filename * @param {string} hashPrefix hashbang prefix */ function LocationHashbangUrl(appBase, appBaseNoFile, hashPrefix) { parseAbsoluteUrl(appBase, this); /** * Parse given hashbang url into properties * @param {string} url Hashbang url * @private */ this.$$parse = function(url) { var withoutBaseUrl = stripBaseUrl(appBase, url) || stripBaseUrl(appBaseNoFile, url); var withoutHashUrl; if (!isUndefined(withoutBaseUrl) && withoutBaseUrl.charAt(0) === '#') { // The rest of the url starts with a hash so we have // got either a hashbang path or a plain hash fragment withoutHashUrl = stripBaseUrl(hashPrefix, withoutBaseUrl); if (isUndefined(withoutHashUrl)) { // There was no hashbang prefix so we just have a hash fragment withoutHashUrl = withoutBaseUrl; } } else { // There was no hashbang path nor hash fragment: // If we are in HTML5 mode we use what is left as the path; // Otherwise we ignore what is left if (this.$$html5) { withoutHashUrl = withoutBaseUrl; } else { withoutHashUrl = ''; if (isUndefined(withoutBaseUrl)) { appBase = url; this.replace(); } } } parseAppUrl(withoutHashUrl, this); this.$$path = removeWindowsDriveName(this.$$path, withoutHashUrl, appBase); this.$$compose(); /* * In Windows, on an anchor node on documents loaded from * the filesystem, the browser will return a pathname * prefixed with the drive name ('/C:/path') when a * pathname without a drive is set: * * a.setAttribute('href', '/foo') * * a.pathname === '/C:/foo' //true * * Inside of Angular, we're always using pathnames that * do not include drive names for routing. */ function removeWindowsDriveName(path, url, base) { /* Matches paths for file protocol on windows, such as /C:/foo/bar, and captures only /foo/bar. */ var windowsFilePathExp = /^\/[A-Z]:(\/.*)/; var firstPathSegmentMatch; //Get the relative path from the input URL. if (startsWith(url, base)) { url = url.replace(base, ''); } // The input URL intentionally contains a first path segment that ends with a colon. if (windowsFilePathExp.exec(url)) { return path; } firstPathSegmentMatch = windowsFilePathExp.exec(path); return firstPathSegmentMatch ? firstPathSegmentMatch[1] : path; } }; /** * Compose hashbang url and update `absUrl` property * @private */ this.$$compose = function() { var search = toKeyValue(this.$$search), hash = this.$$hash ? '#' + encodeUriSegment(this.$$hash) : ''; this.$$url = encodePath(this.$$path) + (search ? '?' + search : '') + hash; this.$$absUrl = appBase + (this.$$url ? hashPrefix + this.$$url : ''); }; this.$$parseLinkUrl = function(url, relHref) { if (stripHash(appBase) == stripHash(url)) { this.$$parse(url); return true; } return false; }; } /** * LocationHashbangUrl represents url * This object is exposed as $location service when html5 history api is enabled but the browser * does not support it. * * @constructor * @param {string} appBase application base URL * @param {string} appBaseNoFile application base URL stripped of any filename * @param {string} hashPrefix hashbang prefix */ function LocationHashbangInHtml5Url(appBase, appBaseNoFile, hashPrefix) { this.$$html5 = true; LocationHashbangUrl.apply(this, arguments); this.$$parseLinkUrl = function(url, relHref) { if (relHref && relHref[0] === '#') { // special case for links to hash fragments: // keep the old url and only replace the hash fragment this.hash(relHref.slice(1)); return true; } var rewrittenUrl; var appUrl; if (appBase == stripHash(url)) { rewrittenUrl = url; } else if ((appUrl = stripBaseUrl(appBaseNoFile, url))) { rewrittenUrl = appBase + hashPrefix + appUrl; } else if (appBaseNoFile === url + '/') { rewrittenUrl = appBaseNoFile; } if (rewrittenUrl) { this.$$parse(rewrittenUrl); } return !!rewrittenUrl; }; this.$$compose = function() { var search = toKeyValue(this.$$search), hash = this.$$hash ? '#' + encodeUriSegment(this.$$hash) : ''; this.$$url = encodePath(this.$$path) + (search ? '?' + search : '') + hash; // include hashPrefix in $$absUrl when $$url is empty so IE9 does not reload page because of removal of '#' this.$$absUrl = appBase + hashPrefix + this.$$url; }; } var locationPrototype = { /** * Ensure absolute url is initialized. * @private */ $$absUrl:'', /** * Are we in html5 mode? * @private */ $$html5: false, /** * Has any change been replacing? * @private */ $$replace: false, /** * @ngdoc method * @name $location#absUrl * * @description * This method is getter only. * * Return full url representation with all segments encoded according to rules specified in * [RFC 3986](http://www.ietf.org/rfc/rfc3986.txt). * * * ```js * // given url http://example.com/#/some/path?foo=bar&baz=xoxo * var absUrl = $location.absUrl(); * // => "http://example.com/#/some/path?foo=bar&baz=xoxo" * ``` * * @return {string} full url */ absUrl: locationGetter('$$absUrl'), /** * @ngdoc method * @name $location#url * * @description * This method is getter / setter. * * Return url (e.g. `/path?a=b#hash`) when called without any parameter. * * Change path, search and hash, when called with parameter and return `$location`. * * * ```js * // given url http://example.com/#/some/path?foo=bar&baz=xoxo * var url = $location.url(); * // => "/some/path?foo=bar&baz=xoxo" * ``` * * @param {string=} url New url without base prefix (e.g. `/path?a=b#hash`) * @return {string} url */ url: function(url) { if (isUndefined(url)) { return this.$$url; } var match = PATH_MATCH.exec(url); if (match[1] || url === '') this.path(decodeURIComponent(match[1])); if (match[2] || match[1] || url === '') this.search(match[3] || ''); this.hash(match[5] || ''); return this; }, /** * @ngdoc method * @name $location#protocol * * @description * This method is getter only. * * Return protocol of current url. * * * ```js * // given url http://example.com/#/some/path?foo=bar&baz=xoxo * var protocol = $location.protocol(); * // => "http" * ``` * * @return {string} protocol of current url */ protocol: locationGetter('$$protocol'), /** * @ngdoc method * @name $location#host * * @description * This method is getter only. * * Return host of current url. * * Note: compared to the non-angular version `location.host` which returns `hostname:port`, this returns the `hostname` portion only. * * * ```js * // given url http://example.com/#/some/path?foo=bar&baz=xoxo * var host = $location.host(); * // => "example.com" * * // given url http://user:password@example.com:8080/#/some/path?foo=bar&baz=xoxo * host = $location.host(); * // => "example.com" * host = location.host; * // => "example.com:8080" * ``` * * @return {string} host of current url. */ host: locationGetter('$$host'), /** * @ngdoc method * @name $location#port * * @description * This method is getter only. * * Return port of current url. * * * ```js * // given url http://example.com/#/some/path?foo=bar&baz=xoxo * var port = $location.port(); * // => 80 * ``` * * @return {Number} port */ port: locationGetter('$$port'), /** * @ngdoc method * @name $location#path * * @description * This method is getter / setter. * * Return path of current url when called without any parameter. * * Change path when called with parameter and return `$location`. * * Note: Path should always begin with forward slash (/), this method will add the forward slash * if it is missing. * * * ```js * // given url http://example.com/#/some/path?foo=bar&baz=xoxo * var path = $location.path(); * // => "/some/path" * ``` * * @param {(string|number)=} path New path * @return {(string|object)} path if called with no parameters, or `$location` if called with a parameter */ path: locationGetterSetter('$$path', function(path) { path = path !== null ? path.toString() : ''; return path.charAt(0) == '/' ? path : '/' + path; }), /** * @ngdoc method * @name $location#search * * @description * This method is getter / setter. * * Return search part (as object) of current url when called without any parameter. * * Change search part when called with parameter and return `$location`. * * * ```js * // given url http://example.com/#/some/path?foo=bar&baz=xoxo * var searchObject = $location.search(); * // => {foo: 'bar', baz: 'xoxo'} * * // set foo to 'yipee' * $location.search('foo', 'yipee'); * // $location.search() => {foo: 'yipee', baz: 'xoxo'} * ``` * * @param {string|Object.|Object.>} search New search params - string or * hash object. * * When called with a single argument the method acts as a setter, setting the `search` component * of `$location` to the specified value. * * If the argument is a hash object containing an array of values, these values will be encoded * as duplicate search parameters in the url. * * @param {(string|Number|Array|boolean)=} paramValue If `search` is a string or number, then `paramValue` * will override only a single search property. * * If `paramValue` is an array, it will override the property of the `search` component of * `$location` specified via the first argument. * * If `paramValue` is `null`, the property specified via the first argument will be deleted. * * If `paramValue` is `true`, the property specified via the first argument will be added with no * value nor trailing equal sign. * * @return {Object} If called with no arguments returns the parsed `search` object. If called with * one or more arguments returns `$location` object itself. */ search: function(search, paramValue) { switch (arguments.length) { case 0: return this.$$search; case 1: if (isString(search) || isNumber(search)) { search = search.toString(); this.$$search = parseKeyValue(search); } else if (isObject(search)) { search = copy(search, {}); // remove object undefined or null properties forEach(search, function(value, key) { if (value == null) delete search[key]; }); this.$$search = search; } else { throw $locationMinErr('isrcharg', 'The first argument of the `$location#search()` call must be a string or an object.'); } break; default: if (isUndefined(paramValue) || paramValue === null) { delete this.$$search[search]; } else { this.$$search[search] = paramValue; } } this.$$compose(); return this; }, /** * @ngdoc method * @name $location#hash * * @description * This method is getter / setter. * * Returns the hash fragment when called without any parameters. * * Changes the hash fragment when called with a parameter and returns `$location`. * * * ```js * // given url http://example.com/#/some/path?foo=bar&baz=xoxo#hashValue * var hash = $location.hash(); * // => "hashValue" * ``` * * @param {(string|number)=} hash New hash fragment * @return {string} hash */ hash: locationGetterSetter('$$hash', function(hash) { return hash !== null ? hash.toString() : ''; }), /** * @ngdoc method * @name $location#replace * * @description * If called, all changes to $location during the current `$digest` will replace the current history * record, instead of adding a new one. */ replace: function() { this.$$replace = true; return this; } }; forEach([LocationHashbangInHtml5Url, LocationHashbangUrl, LocationHtml5Url], function(Location) { Location.prototype = Object.create(locationPrototype); /** * @ngdoc method * @name $location#state * * @description * This method is getter / setter. * * Return the history state object when called without any parameter. * * Change the history state object when called with one parameter and return `$location`. * The state object is later passed to `pushState` or `replaceState`. * * NOTE: This method is supported only in HTML5 mode and only in browsers supporting * the HTML5 History API (i.e. methods `pushState` and `replaceState`). If you need to support * older browsers (like IE9 or Android < 4.0), don't use this method. * * @param {object=} state State object for pushState or replaceState * @return {object} state */ Location.prototype.state = function(state) { if (!arguments.length) { return this.$$state; } if (Location !== LocationHtml5Url || !this.$$html5) { throw $locationMinErr('nostate', 'History API state support is available only ' + 'in HTML5 mode and only in browsers supporting HTML5 History API'); } // The user might modify `stateObject` after invoking `$location.state(stateObject)` // but we're changing the $$state reference to $browser.state() during the $digest // so the modification window is narrow. this.$$state = isUndefined(state) ? null : state; return this; }; }); function locationGetter(property) { return function() { return this[property]; }; } function locationGetterSetter(property, preprocess) { return function(value) { if (isUndefined(value)) { return this[property]; } this[property] = preprocess(value); this.$$compose(); return this; }; } /** * @ngdoc service * @name $location * * @requires $rootElement * * @description * The $location service parses the URL in the browser address bar (based on the * [window.location](https://developer.mozilla.org/en/window.location)) and makes the URL * available to your application. Changes to the URL in the address bar are reflected into * $location service and changes to $location are reflected into the browser address bar. * * **The $location service:** * * - Exposes the current URL in the browser address bar, so you can * - Watch and observe the URL. * - Change the URL. * - Synchronizes the URL with the browser when the user * - Changes the address bar. * - Clicks the back or forward button (or clicks a History link). * - Clicks on a link. * - Represents the URL object as a set of methods (protocol, host, port, path, search, hash). * * For more information see {@link guide/$location Developer Guide: Using $location} */ /** * @ngdoc provider * @name $locationProvider * @description * Use the `$locationProvider` to configure how the application deep linking paths are stored. */ function $LocationProvider() { var hashPrefix = '', html5Mode = { enabled: false, requireBase: true, rewriteLinks: true }; /** * @ngdoc method * @name $locationProvider#hashPrefix * @description * @param {string=} prefix Prefix for hash part (containing path and search) * @returns {*} current value if used as getter or itself (chaining) if used as setter */ this.hashPrefix = function(prefix) { if (isDefined(prefix)) { hashPrefix = prefix; return this; } else { return hashPrefix; } }; /** * @ngdoc method * @name $locationProvider#html5Mode * @description * @param {(boolean|Object)=} mode If boolean, sets `html5Mode.enabled` to value. * If object, sets `enabled`, `requireBase` and `rewriteLinks` to respective values. Supported * properties: * - **enabled** – `{boolean}` – (default: false) If true, will rely on `history.pushState` to * change urls where supported. Will fall back to hash-prefixed paths in browsers that do not * support `pushState`. * - **requireBase** - `{boolean}` - (default: `true`) When html5Mode is enabled, specifies * whether or not a tag is required to be present. If `enabled` and `requireBase` are * true, and a base tag is not present, an error will be thrown when `$location` is injected. * See the {@link guide/$location $location guide for more information} * - **rewriteLinks** - `{boolean}` - (default: `true`) When html5Mode is enabled, * enables/disables url rewriting for relative links. * * @returns {Object} html5Mode object if used as getter or itself (chaining) if used as setter */ this.html5Mode = function(mode) { if (isBoolean(mode)) { html5Mode.enabled = mode; return this; } else if (isObject(mode)) { if (isBoolean(mode.enabled)) { html5Mode.enabled = mode.enabled; } if (isBoolean(mode.requireBase)) { html5Mode.requireBase = mode.requireBase; } if (isBoolean(mode.rewriteLinks)) { html5Mode.rewriteLinks = mode.rewriteLinks; } return this; } else { return html5Mode; } }; /** * @ngdoc event * @name $location#$locationChangeStart * @eventType broadcast on root scope * @description * Broadcasted before a URL will change. * * This change can be prevented by calling * `preventDefault` method of the event. See {@link ng.$rootScope.Scope#$on} for more * details about event object. Upon successful change * {@link ng.$location#$locationChangeSuccess $locationChangeSuccess} is fired. * * The `newState` and `oldState` parameters may be defined only in HTML5 mode and when * the browser supports the HTML5 History API. * * @param {Object} angularEvent Synthetic event object. * @param {string} newUrl New URL * @param {string=} oldUrl URL that was before it was changed. * @param {string=} newState New history state object * @param {string=} oldState History state object that was before it was changed. */ /** * @ngdoc event * @name $location#$locationChangeSuccess * @eventType broadcast on root scope * @description * Broadcasted after a URL was changed. * * The `newState` and `oldState` parameters may be defined only in HTML5 mode and when * the browser supports the HTML5 History API. * * @param {Object} angularEvent Synthetic event object. * @param {string} newUrl New URL * @param {string=} oldUrl URL that was before it was changed. * @param {string=} newState New history state object * @param {string=} oldState History state object that was before it was changed. */ this.$get = ['$rootScope', '$browser', '$sniffer', '$rootElement', '$window', function($rootScope, $browser, $sniffer, $rootElement, $window) { var $location, LocationMode, baseHref = $browser.baseHref(), // if base[href] is undefined, it defaults to '' initialUrl = $browser.url(), appBase; if (html5Mode.enabled) { if (!baseHref && html5Mode.requireBase) { throw $locationMinErr('nobase', "$location in HTML5 mode requires a tag to be present!"); } appBase = serverBase(initialUrl) + (baseHref || '/'); LocationMode = $sniffer.history ? LocationHtml5Url : LocationHashbangInHtml5Url; } else { appBase = stripHash(initialUrl); LocationMode = LocationHashbangUrl; } var appBaseNoFile = stripFile(appBase); $location = new LocationMode(appBase, appBaseNoFile, '#' + hashPrefix); $location.$$parseLinkUrl(initialUrl, initialUrl); $location.$$state = $browser.state(); var IGNORE_URI_REGEXP = /^\s*(javascript|mailto):/i; function setBrowserUrlWithFallback(url, replace, state) { var oldUrl = $location.url(); var oldState = $location.$$state; try { $browser.url(url, replace, state); // Make sure $location.state() returns referentially identical (not just deeply equal) // state object; this makes possible quick checking if the state changed in the digest // loop. Checking deep equality would be too expensive. $location.$$state = $browser.state(); } catch (e) { // Restore old values if pushState fails $location.url(oldUrl); $location.$$state = oldState; throw e; } } $rootElement.on('click', function(event) { // TODO(vojta): rewrite link when opening in new tab/window (in legacy browser) // currently we open nice url link and redirect then if (!html5Mode.rewriteLinks || event.ctrlKey || event.metaKey || event.shiftKey || event.which == 2 || event.button == 2) return; var elm = jqLite(event.target); // traverse the DOM up to find first A tag while (nodeName_(elm[0]) !== 'a') { // ignore rewriting if no A tag (reached root element, or no parent - removed from document) if (elm[0] === $rootElement[0] || !(elm = elm.parent())[0]) return; } var absHref = elm.prop('href'); // get the actual href attribute - see // http://msdn.microsoft.com/en-us/library/ie/dd347148(v=vs.85).aspx var relHref = elm.attr('href') || elm.attr('xlink:href'); if (isObject(absHref) && absHref.toString() === '[object SVGAnimatedString]') { // SVGAnimatedString.animVal should be identical to SVGAnimatedString.baseVal, unless during // an animation. absHref = urlResolve(absHref.animVal).href; } // Ignore when url is started with javascript: or mailto: if (IGNORE_URI_REGEXP.test(absHref)) return; if (absHref && !elm.attr('target') && !event.isDefaultPrevented()) { if ($location.$$parseLinkUrl(absHref, relHref)) { // We do a preventDefault for all urls that are part of the angular application, // in html5mode and also without, so that we are able to abort navigation without // getting double entries in the location history. event.preventDefault(); // update location manually if ($location.absUrl() != $browser.url()) { $rootScope.$apply(); // hack to work around FF6 bug 684208 when scenario runner clicks on links $window.angular['ff-684208-preventDefault'] = true; } } } }); // rewrite hashbang url <> html5 url if (trimEmptyHash($location.absUrl()) != trimEmptyHash(initialUrl)) { $browser.url($location.absUrl(), true); } var initializing = true; // update $location when $browser url changes $browser.onUrlChange(function(newUrl, newState) { if (isUndefined(stripBaseUrl(appBaseNoFile, newUrl))) { // If we are navigating outside of the app then force a reload $window.location.href = newUrl; return; } $rootScope.$evalAsync(function() { var oldUrl = $location.absUrl(); var oldState = $location.$$state; var defaultPrevented; newUrl = trimEmptyHash(newUrl); $location.$$parse(newUrl); $location.$$state = newState; defaultPrevented = $rootScope.$broadcast('$locationChangeStart', newUrl, oldUrl, newState, oldState).defaultPrevented; // if the location was changed by a `$locationChangeStart` handler then stop // processing this location change if ($location.absUrl() !== newUrl) return; if (defaultPrevented) { $location.$$parse(oldUrl); $location.$$state = oldState; setBrowserUrlWithFallback(oldUrl, false, oldState); } else { initializing = false; afterLocationChange(oldUrl, oldState); } }); if (!$rootScope.$$phase) $rootScope.$digest(); }); // update browser $rootScope.$watch(function $locationWatch() { var oldUrl = trimEmptyHash($browser.url()); var newUrl = trimEmptyHash($location.absUrl()); var oldState = $browser.state(); var currentReplace = $location.$$replace; var urlOrStateChanged = oldUrl !== newUrl || ($location.$$html5 && $sniffer.history && oldState !== $location.$$state); if (initializing || urlOrStateChanged) { initializing = false; $rootScope.$evalAsync(function() { var newUrl = $location.absUrl(); var defaultPrevented = $rootScope.$broadcast('$locationChangeStart', newUrl, oldUrl, $location.$$state, oldState).defaultPrevented; // if the location was changed by a `$locationChangeStart` handler then stop // processing this location change if ($location.absUrl() !== newUrl) return; if (defaultPrevented) { $location.$$parse(oldUrl); $location.$$state = oldState; } else { if (urlOrStateChanged) { setBrowserUrlWithFallback(newUrl, currentReplace, oldState === $location.$$state ? null : $location.$$state); } afterLocationChange(oldUrl, oldState); } }); } $location.$$replace = false; // we don't need to return anything because $evalAsync will make the digest loop dirty when // there is a change }); return $location; function afterLocationChange(oldUrl, oldState) { $rootScope.$broadcast('$locationChangeSuccess', $location.absUrl(), oldUrl, $location.$$state, oldState); } }]; } /** * @ngdoc service * @name $log * @requires $window * * @description * Simple service for logging. Default implementation safely writes the message * into the browser's console (if present). * * The main purpose of this service is to simplify debugging and troubleshooting. * * The default is to log `debug` messages. You can use * {@link ng.$logProvider ng.$logProvider#debugEnabled} to change this. * * @example angular.module('logExample', []) .controller('LogController', ['$scope', '$log', function($scope, $log) { $scope.$log = $log; $scope.message = 'Hello World!'; }]);

Reload this page with open console, enter text and hit the log button...

Message:

*/ /** * @ngdoc provider * @name $logProvider * @description * Use the `$logProvider` to configure how the application logs messages */ function $LogProvider() { var debug = true, self = this; /** * @ngdoc method * @name $logProvider#debugEnabled * @description * @param {boolean=} flag enable or disable debug level messages * @returns {*} current value if used as getter or itself (chaining) if used as setter */ this.debugEnabled = function(flag) { if (isDefined(flag)) { debug = flag; return this; } else { return debug; } }; this.$get = ['$window', function($window) { return { /** * @ngdoc method * @name $log#log * * @description * Write a log message */ log: consoleLog('log'), /** * @ngdoc method * @name $log#info * * @description * Write an information message */ info: consoleLog('info'), /** * @ngdoc method * @name $log#warn * * @description * Write a warning message */ warn: consoleLog('warn'), /** * @ngdoc method * @name $log#error * * @description * Write an error message */ error: consoleLog('error'), /** * @ngdoc method * @name $log#debug * * @description * Write a debug message */ debug: (function() { var fn = consoleLog('debug'); return function() { if (debug) { fn.apply(self, arguments); } }; }()) }; function formatError(arg) { if (arg instanceof Error) { if (arg.stack) { arg = (arg.message && arg.stack.indexOf(arg.message) === -1) ? 'Error: ' + arg.message + '\n' + arg.stack : arg.stack; } else if (arg.sourceURL) { arg = arg.message + '\n' + arg.sourceURL + ':' + arg.line; } } return arg; } function consoleLog(type) { var console = $window.console || {}, logFn = console[type] || console.log || noop, hasApply = false; // Note: reading logFn.apply throws an error in IE11 in IE8 document mode. // The reason behind this is that console.log has type "object" in IE8... try { hasApply = !!logFn.apply; } catch (e) {} if (hasApply) { return function() { var args = []; forEach(arguments, function(arg) { args.push(formatError(arg)); }); return logFn.apply(console, args); }; } // we are IE which either doesn't have window.console => this is noop and we do nothing, // or we are IE where console.log doesn't have apply so we log at least first 2 args return function(arg1, arg2) { logFn(arg1, arg2 == null ? '' : arg2); }; } }]; } /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Any commits to this file should be reviewed with security in mind. * * Changes to this file can potentially create security vulnerabilities. * * An approval from 2 Core members with history of modifying * * this file is required. * * * * Does the change somehow allow for arbitrary javascript to be executed? * * Or allows for someone to change the prototype of built-in objects? * * Or gives undesired access to variables likes document or window? * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ var $parseMinErr = minErr('$parse'); // Sandboxing Angular Expressions // ------------------------------ // Angular expressions are generally considered safe because these expressions only have direct // access to `$scope` and locals. However, one can obtain the ability to execute arbitrary JS code by // obtaining a reference to native JS functions such as the Function constructor. // // As an example, consider the following Angular expression: // // {}.toString.constructor('alert("evil JS code")') // // This sandboxing technique is not perfect and doesn't aim to be. The goal is to prevent exploits // against the expression language, but not to prevent exploits that were enabled by exposing // sensitive JavaScript or browser APIs on Scope. Exposing such objects on a Scope is never a good // practice and therefore we are not even trying to protect against interaction with an object // explicitly exposed in this way. // // In general, it is not possible to access a Window object from an angular expression unless a // window or some DOM object that has a reference to window is published onto a Scope. // Similarly we prevent invocations of function known to be dangerous, as well as assignments to // native objects. // // See https://docs.angularjs.org/guide/security function ensureSafeMemberName(name, fullExpression) { if (name === "__defineGetter__" || name === "__defineSetter__" || name === "__lookupGetter__" || name === "__lookupSetter__" || name === "__proto__") { throw $parseMinErr('isecfld', 'Attempting to access a disallowed field in Angular expressions! ' + 'Expression: {0}', fullExpression); } return name; } function getStringValue(name) { // Property names must be strings. This means that non-string objects cannot be used // as keys in an object. Any non-string object, including a number, is typecasted // into a string via the toString method. // -- MDN, https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Operators/Property_accessors#Property_names // // So, to ensure that we are checking the same `name` that JavaScript would use, we cast it // to a string. It's not always possible. If `name` is an object and its `toString` method is // 'broken' (doesn't return a string, isn't a function, etc.), an error will be thrown: // // TypeError: Cannot convert object to primitive value // // For performance reasons, we don't catch this error here and allow it to propagate up the call // stack. Note that you'll get the same error in JavaScript if you try to access a property using // such a 'broken' object as a key. return name + ''; } function ensureSafeObject(obj, fullExpression) { // nifty check if obj is Function that is fast and works across iframes and other contexts if (obj) { if (obj.constructor === obj) { throw $parseMinErr('isecfn', 'Referencing Function in Angular expressions is disallowed! Expression: {0}', fullExpression); } else if (// isWindow(obj) obj.window === obj) { throw $parseMinErr('isecwindow', 'Referencing the Window in Angular expressions is disallowed! Expression: {0}', fullExpression); } else if (// isElement(obj) obj.children && (obj.nodeName || (obj.prop && obj.attr && obj.find))) { throw $parseMinErr('isecdom', 'Referencing DOM nodes in Angular expressions is disallowed! Expression: {0}', fullExpression); } else if (// block Object so that we can't get hold of dangerous Object.* methods obj === Object) { throw $parseMinErr('isecobj', 'Referencing Object in Angular expressions is disallowed! Expression: {0}', fullExpression); } } return obj; } var CALL = Function.prototype.call; var APPLY = Function.prototype.apply; var BIND = Function.prototype.bind; function ensureSafeFunction(obj, fullExpression) { if (obj) { if (obj.constructor === obj) { throw $parseMinErr('isecfn', 'Referencing Function in Angular expressions is disallowed! Expression: {0}', fullExpression); } else if (obj === CALL || obj === APPLY || obj === BIND) { throw $parseMinErr('isecff', 'Referencing call, apply or bind in Angular expressions is disallowed! Expression: {0}', fullExpression); } } } function ensureSafeAssignContext(obj, fullExpression) { if (obj) { if (obj === (0).constructor || obj === (false).constructor || obj === ''.constructor || obj === {}.constructor || obj === [].constructor || obj === Function.constructor) { throw $parseMinErr('isecaf', 'Assigning to a constructor is disallowed! Expression: {0}', fullExpression); } } } var OPERATORS = createMap(); forEach('+ - * / % === !== == != < > <= >= && || ! = |'.split(' '), function(operator) { OPERATORS[operator] = true; }); var ESCAPE = {"n":"\n", "f":"\f", "r":"\r", "t":"\t", "v":"\v", "'":"'", '"':'"'}; ///////////////////////////////////////// /** * @constructor */ var Lexer = function(options) { this.options = options; }; Lexer.prototype = { constructor: Lexer, lex: function(text) { this.text = text; this.index = 0; this.tokens = []; while (this.index < this.text.length) { var ch = this.text.charAt(this.index); if (ch === '"' || ch === "'") { this.readString(ch); } else if (this.isNumber(ch) || ch === '.' && this.isNumber(this.peek())) { this.readNumber(); } else if (this.isIdentifierStart(this.peekMultichar())) { this.readIdent(); } else if (this.is(ch, '(){}[].,;:?')) { this.tokens.push({index: this.index, text: ch}); this.index++; } else if (this.isWhitespace(ch)) { this.index++; } else { var ch2 = ch + this.peek(); var ch3 = ch2 + this.peek(2); var op1 = OPERATORS[ch]; var op2 = OPERATORS[ch2]; var op3 = OPERATORS[ch3]; if (op1 || op2 || op3) { var token = op3 ? ch3 : (op2 ? ch2 : ch); this.tokens.push({index: this.index, text: token, operator: true}); this.index += token.length; } else { this.throwError('Unexpected next character ', this.index, this.index + 1); } } } return this.tokens; }, is: function(ch, chars) { return chars.indexOf(ch) !== -1; }, peek: function(i) { var num = i || 1; return (this.index + num < this.text.length) ? this.text.charAt(this.index + num) : false; }, isNumber: function(ch) { return ('0' <= ch && ch <= '9') && typeof ch === "string"; }, isWhitespace: function(ch) { // IE treats non-breaking space as \u00A0 return (ch === ' ' || ch === '\r' || ch === '\t' || ch === '\n' || ch === '\v' || ch === '\u00A0'); }, isIdentifierStart: function(ch) { return this.options.isIdentifierStart ? this.options.isIdentifierStart(ch, this.codePointAt(ch)) : this.isValidIdentifierStart(ch); }, isValidIdentifierStart: function(ch) { return ('a' <= ch && ch <= 'z' || 'A' <= ch && ch <= 'Z' || '_' === ch || ch === '$'); }, isIdentifierContinue: function(ch) { return this.options.isIdentifierContinue ? this.options.isIdentifierContinue(ch, this.codePointAt(ch)) : this.isValidIdentifierContinue(ch); }, isValidIdentifierContinue: function(ch, cp) { return this.isValidIdentifierStart(ch, cp) || this.isNumber(ch); }, codePointAt: function(ch) { if (ch.length === 1) return ch.charCodeAt(0); /*jshint bitwise: false*/ return (ch.charCodeAt(0) << 10) + ch.charCodeAt(1) - 0x35FDC00; /*jshint bitwise: true*/ }, peekMultichar: function() { var ch = this.text.charAt(this.index); var peek = this.peek(); if (!peek) { return ch; } var cp1 = ch.charCodeAt(0); var cp2 = peek.charCodeAt(0); if (cp1 >= 0xD800 && cp1 <= 0xDBFF && cp2 >= 0xDC00 && cp2 <= 0xDFFF) { return ch + peek; } return ch; }, isExpOperator: function(ch) { return (ch === '-' || ch === '+' || this.isNumber(ch)); }, throwError: function(error, start, end) { end = end || this.index; var colStr = (isDefined(start) ? 's ' + start + '-' + this.index + ' [' + this.text.substring(start, end) + ']' : ' ' + end); throw $parseMinErr('lexerr', 'Lexer Error: {0} at column{1} in expression [{2}].', error, colStr, this.text); }, readNumber: function() { var number = ''; var start = this.index; while (this.index < this.text.length) { var ch = lowercase(this.text.charAt(this.index)); if (ch == '.' || this.isNumber(ch)) { number += ch; } else { var peekCh = this.peek(); if (ch == 'e' && this.isExpOperator(peekCh)) { number += ch; } else if (this.isExpOperator(ch) && peekCh && this.isNumber(peekCh) && number.charAt(number.length - 1) == 'e') { number += ch; } else if (this.isExpOperator(ch) && (!peekCh || !this.isNumber(peekCh)) && number.charAt(number.length - 1) == 'e') { this.throwError('Invalid exponent'); } else { break; } } this.index++; } this.tokens.push({ index: start, text: number, constant: true, value: Number(number) }); }, readIdent: function() { var start = this.index; this.index += this.peekMultichar().length; while (this.index < this.text.length) { var ch = this.peekMultichar(); if (!this.isIdentifierContinue(ch)) { break; } this.index += ch.length; } this.tokens.push({ index: start, text: this.text.slice(start, this.index), identifier: true }); }, readString: function(quote) { var start = this.index; this.index++; var string = ''; var rawString = quote; var escape = false; while (this.index < this.text.length) { var ch = this.text.charAt(this.index); rawString += ch; if (escape) { if (ch === 'u') { var hex = this.text.substring(this.index + 1, this.index + 5); if (!hex.match(/[\da-f]{4}/i)) { this.throwError('Invalid unicode escape [\\u' + hex + ']'); } this.index += 4; string += String.fromCharCode(parseInt(hex, 16)); } else { var rep = ESCAPE[ch]; string = string + (rep || ch); } escape = false; } else if (ch === '\\') { escape = true; } else if (ch === quote) { this.index++; this.tokens.push({ index: start, text: rawString, constant: true, value: string }); return; } else { string += ch; } this.index++; } this.throwError('Unterminated quote', start); } }; var AST = function(lexer, options) { this.lexer = lexer; this.options = options; }; AST.Program = 'Program'; AST.ExpressionStatement = 'ExpressionStatement'; AST.AssignmentExpression = 'AssignmentExpression'; AST.ConditionalExpression = 'ConditionalExpression'; AST.LogicalExpression = 'LogicalExpression'; AST.BinaryExpression = 'BinaryExpression'; AST.UnaryExpression = 'UnaryExpression'; AST.CallExpression = 'CallExpression'; AST.MemberExpression = 'MemberExpression'; AST.Identifier = 'Identifier'; AST.Literal = 'Literal'; AST.ArrayExpression = 'ArrayExpression'; AST.Property = 'Property'; AST.ObjectExpression = 'ObjectExpression'; AST.ThisExpression = 'ThisExpression'; AST.LocalsExpression = 'LocalsExpression'; // Internal use only AST.NGValueParameter = 'NGValueParameter'; AST.prototype = { ast: function(text) { this.text = text; this.tokens = this.lexer.lex(text); var value = this.program(); if (this.tokens.length !== 0) { this.throwError('is an unexpected token', this.tokens[0]); } return value; }, program: function() { var body = []; while (true) { if (this.tokens.length > 0 && !this.peek('}', ')', ';', ']')) body.push(this.expressionStatement()); if (!this.expect(';')) { return { type: AST.Program, body: body}; } } }, expressionStatement: function() { return { type: AST.ExpressionStatement, expression: this.filterChain() }; }, filterChain: function() { var left = this.expression(); var token; while ((token = this.expect('|'))) { left = this.filter(left); } return left; }, expression: function() { return this.assignment(); }, assignment: function() { var result = this.ternary(); if (this.expect('=')) { result = { type: AST.AssignmentExpression, left: result, right: this.assignment(), operator: '='}; } return result; }, ternary: function() { var test = this.logicalOR(); var alternate; var consequent; if (this.expect('?')) { alternate = this.expression(); if (this.consume(':')) { consequent = this.expression(); return { type: AST.ConditionalExpression, test: test, alternate: alternate, consequent: consequent}; } } return test; }, logicalOR: function() { var left = this.logicalAND(); while (this.expect('||')) { left = { type: AST.LogicalExpression, operator: '||', left: left, right: this.logicalAND() }; } return left; }, logicalAND: function() { var left = this.equality(); while (this.expect('&&')) { left = { type: AST.LogicalExpression, operator: '&&', left: left, right: this.equality()}; } return left; }, equality: function() { var left = this.relational(); var token; while ((token = this.expect('==','!=','===','!=='))) { left = { type: AST.BinaryExpression, operator: token.text, left: left, right: this.relational() }; } return left; }, relational: function() { var left = this.additive(); var token; while ((token = this.expect('<', '>', '<=', '>='))) { left = { type: AST.BinaryExpression, operator: token.text, left: left, right: this.additive() }; } return left; }, additive: function() { var left = this.multiplicative(); var token; while ((token = this.expect('+','-'))) { left = { type: AST.BinaryExpression, operator: token.text, left: left, right: this.multiplicative() }; } return left; }, multiplicative: function() { var left = this.unary(); var token; while ((token = this.expect('*','/','%'))) { left = { type: AST.BinaryExpression, operator: token.text, left: left, right: this.unary() }; } return left; }, unary: function() { var token; if ((token = this.expect('+', '-', '!'))) { return { type: AST.UnaryExpression, operator: token.text, prefix: true, argument: this.unary() }; } else { return this.primary(); } }, primary: function() { var primary; if (this.expect('(')) { primary = this.filterChain(); this.consume(')'); } else if (this.expect('[')) { primary = this.arrayDeclaration(); } else if (this.expect('{')) { primary = this.object(); } else if (this.selfReferential.hasOwnProperty(this.peek().text)) { primary = copy(this.selfReferential[this.consume().text]); } else if (this.options.literals.hasOwnProperty(this.peek().text)) { primary = { type: AST.Literal, value: this.options.literals[this.consume().text]}; } else if (this.peek().identifier) { primary = this.identifier(); } else if (this.peek().constant) { primary = this.constant(); } else { this.throwError('not a primary expression', this.peek()); } var next; while ((next = this.expect('(', '[', '.'))) { if (next.text === '(') { primary = {type: AST.CallExpression, callee: primary, arguments: this.parseArguments() }; this.consume(')'); } else if (next.text === '[') { primary = { type: AST.MemberExpression, object: primary, property: this.expression(), computed: true }; this.consume(']'); } else if (next.text === '.') { primary = { type: AST.MemberExpression, object: primary, property: this.identifier(), computed: false }; } else { this.throwError('IMPOSSIBLE'); } } return primary; }, filter: function(baseExpression) { var args = [baseExpression]; var result = {type: AST.CallExpression, callee: this.identifier(), arguments: args, filter: true}; while (this.expect(':')) { args.push(this.expression()); } return result; }, parseArguments: function() { var args = []; if (this.peekToken().text !== ')') { do { args.push(this.filterChain()); } while (this.expect(',')); } return args; }, identifier: function() { var token = this.consume(); if (!token.identifier) { this.throwError('is not a valid identifier', token); } return { type: AST.Identifier, name: token.text }; }, constant: function() { // TODO check that it is a constant return { type: AST.Literal, value: this.consume().value }; }, arrayDeclaration: function() { var elements = []; if (this.peekToken().text !== ']') { do { if (this.peek(']')) { // Support trailing commas per ES5.1. break; } elements.push(this.expression()); } while (this.expect(',')); } this.consume(']'); return { type: AST.ArrayExpression, elements: elements }; }, object: function() { var properties = [], property; if (this.peekToken().text !== '}') { do { if (this.peek('}')) { // Support trailing commas per ES5.1. break; } property = {type: AST.Property, kind: 'init'}; if (this.peek().constant) { property.key = this.constant(); property.computed = false; this.consume(':'); property.value = this.expression(); } else if (this.peek().identifier) { property.key = this.identifier(); property.computed = false; if (this.peek(':')) { this.consume(':'); property.value = this.expression(); } else { property.value = property.key; } } else if (this.peek('[')) { this.consume('['); property.key = this.expression(); this.consume(']'); property.computed = true; this.consume(':'); property.value = this.expression(); } else { this.throwError("invalid key", this.peek()); } properties.push(property); } while (this.expect(',')); } this.consume('}'); return {type: AST.ObjectExpression, properties: properties }; }, throwError: function(msg, token) { throw $parseMinErr('syntax', 'Syntax Error: Token \'{0}\' {1} at column {2} of the expression [{3}] starting at [{4}].', token.text, msg, (token.index + 1), this.text, this.text.substring(token.index)); }, consume: function(e1) { if (this.tokens.length === 0) { throw $parseMinErr('ueoe', 'Unexpected end of expression: {0}', this.text); } var token = this.expect(e1); if (!token) { this.throwError('is unexpected, expecting [' + e1 + ']', this.peek()); } return token; }, peekToken: function() { if (this.tokens.length === 0) { throw $parseMinErr('ueoe', 'Unexpected end of expression: {0}', this.text); } return this.tokens[0]; }, peek: function(e1, e2, e3, e4) { return this.peekAhead(0, e1, e2, e3, e4); }, peekAhead: function(i, e1, e2, e3, e4) { if (this.tokens.length > i) { var token = this.tokens[i]; var t = token.text; if (t === e1 || t === e2 || t === e3 || t === e4 || (!e1 && !e2 && !e3 && !e4)) { return token; } } return false; }, expect: function(e1, e2, e3, e4) { var token = this.peek(e1, e2, e3, e4); if (token) { this.tokens.shift(); return token; } return false; }, selfReferential: { 'this': {type: AST.ThisExpression }, '$locals': {type: AST.LocalsExpression } } }; function ifDefined(v, d) { return typeof v !== 'undefined' ? v : d; } function plusFn(l, r) { if (typeof l === 'undefined') return r; if (typeof r === 'undefined') return l; return l + r; } function isStateless($filter, filterName) { var fn = $filter(filterName); return !fn.$stateful; } function findConstantAndWatchExpressions(ast, $filter) { var allConstants; var argsToWatch; switch (ast.type) { case AST.Program: allConstants = true; forEach(ast.body, function(expr) { findConstantAndWatchExpressions(expr.expression, $filter); allConstants = allConstants && expr.expression.constant; }); ast.constant = allConstants; break; case AST.Literal: ast.constant = true; ast.toWatch = []; break; case AST.UnaryExpression: findConstantAndWatchExpressions(ast.argument, $filter); ast.constant = ast.argument.constant; ast.toWatch = ast.argument.toWatch; break; case AST.BinaryExpression: findConstantAndWatchExpressions(ast.left, $filter); findConstantAndWatchExpressions(ast.right, $filter); ast.constant = ast.left.constant && ast.right.constant; ast.toWatch = ast.left.toWatch.concat(ast.right.toWatch); break; case AST.LogicalExpression: findConstantAndWatchExpressions(ast.left, $filter); findConstantAndWatchExpressions(ast.right, $filter); ast.constant = ast.left.constant && ast.right.constant; ast.toWatch = ast.constant ? [] : [ast]; break; case AST.ConditionalExpression: findConstantAndWatchExpressions(ast.test, $filter); findConstantAndWatchExpressions(ast.alternate, $filter); findConstantAndWatchExpressions(ast.consequent, $filter); ast.constant = ast.test.constant && ast.alternate.constant && ast.consequent.constant; ast.toWatch = ast.constant ? [] : [ast]; break; case AST.Identifier: ast.constant = false; ast.toWatch = [ast]; break; case AST.MemberExpression: findConstantAndWatchExpressions(ast.object, $filter); if (ast.computed) { findConstantAndWatchExpressions(ast.property, $filter); } ast.constant = ast.object.constant && (!ast.computed || ast.property.constant); ast.toWatch = [ast]; break; case AST.CallExpression: allConstants = ast.filter ? isStateless($filter, ast.callee.name) : false; argsToWatch = []; forEach(ast.arguments, function(expr) { findConstantAndWatchExpressions(expr, $filter); allConstants = allConstants && expr.constant; if (!expr.constant) { argsToWatch.push.apply(argsToWatch, expr.toWatch); } }); ast.constant = allConstants; ast.toWatch = ast.filter && isStateless($filter, ast.callee.name) ? argsToWatch : [ast]; break; case AST.AssignmentExpression: findConstantAndWatchExpressions(ast.left, $filter); findConstantAndWatchExpressions(ast.right, $filter); ast.constant = ast.left.constant && ast.right.constant; ast.toWatch = [ast]; break; case AST.ArrayExpression: allConstants = true; argsToWatch = []; forEach(ast.elements, function(expr) { findConstantAndWatchExpressions(expr, $filter); allConstants = allConstants && expr.constant; if (!expr.constant) { argsToWatch.push.apply(argsToWatch, expr.toWatch); } }); ast.constant = allConstants; ast.toWatch = argsToWatch; break; case AST.ObjectExpression: allConstants = true; argsToWatch = []; forEach(ast.properties, function(property) { findConstantAndWatchExpressions(property.value, $filter); allConstants = allConstants && property.value.constant && !property.computed; if (!property.value.constant) { argsToWatch.push.apply(argsToWatch, property.value.toWatch); } }); ast.constant = allConstants; ast.toWatch = argsToWatch; break; case AST.ThisExpression: ast.constant = false; ast.toWatch = []; break; case AST.LocalsExpression: ast.constant = false; ast.toWatch = []; break; } } function getInputs(body) { if (body.length != 1) return; var lastExpression = body[0].expression; var candidate = lastExpression.toWatch; if (candidate.length !== 1) return candidate; return candidate[0] !== lastExpression ? candidate : undefined; } function isAssignable(ast) { return ast.type === AST.Identifier || ast.type === AST.MemberExpression; } function assignableAST(ast) { if (ast.body.length === 1 && isAssignable(ast.body[0].expression)) { return {type: AST.AssignmentExpression, left: ast.body[0].expression, right: {type: AST.NGValueParameter}, operator: '='}; } } function isLiteral(ast) { return ast.body.length === 0 || ast.body.length === 1 && ( ast.body[0].expression.type === AST.Literal || ast.body[0].expression.type === AST.ArrayExpression || ast.body[0].expression.type === AST.ObjectExpression); } function isConstant(ast) { return ast.constant; } function ASTCompiler(astBuilder, $filter) { this.astBuilder = astBuilder; this.$filter = $filter; } ASTCompiler.prototype = { compile: function(expression, expensiveChecks) { var self = this; var ast = this.astBuilder.ast(expression); this.state = { nextId: 0, filters: {}, expensiveChecks: expensiveChecks, fn: {vars: [], body: [], own: {}}, assign: {vars: [], body: [], own: {}}, inputs: [] }; findConstantAndWatchExpressions(ast, self.$filter); var extra = ''; var assignable; this.stage = 'assign'; if ((assignable = assignableAST(ast))) { this.state.computing = 'assign'; var result = this.nextId(); this.recurse(assignable, result); this.return_(result); extra = 'fn.assign=' + this.generateFunction('assign', 's,v,l'); } var toWatch = getInputs(ast.body); self.stage = 'inputs'; forEach(toWatch, function(watch, key) { var fnKey = 'fn' + key; self.state[fnKey] = {vars: [], body: [], own: {}}; self.state.computing = fnKey; var intoId = self.nextId(); self.recurse(watch, intoId); self.return_(intoId); self.state.inputs.push(fnKey); watch.watchId = key; }); this.state.computing = 'fn'; this.stage = 'main'; this.recurse(ast); var fnString = // The build and minification steps remove the string "use strict" from the code, but this is done using a regex. // This is a workaround for this until we do a better job at only removing the prefix only when we should. '"' + this.USE + ' ' + this.STRICT + '";\n' + this.filterPrefix() + 'var fn=' + this.generateFunction('fn', 's,l,a,i') + extra + this.watchFns() + 'return fn;'; /* jshint -W054 */ var fn = (new Function('$filter', 'ensureSafeMemberName', 'ensureSafeObject', 'ensureSafeFunction', 'getStringValue', 'ensureSafeAssignContext', 'ifDefined', 'plus', 'text', fnString))( this.$filter, ensureSafeMemberName, ensureSafeObject, ensureSafeFunction, getStringValue, ensureSafeAssignContext, ifDefined, plusFn, expression); /* jshint +W054 */ this.state = this.stage = undefined; fn.literal = isLiteral(ast); fn.constant = isConstant(ast); return fn; }, USE: 'use', STRICT: 'strict', watchFns: function() { var result = []; var fns = this.state.inputs; var self = this; forEach(fns, function(name) { result.push('var ' + name + '=' + self.generateFunction(name, 's')); }); if (fns.length) { result.push('fn.inputs=[' + fns.join(',') + '];'); } return result.join(''); }, generateFunction: function(name, params) { return 'function(' + params + '){' + this.varsPrefix(name) + this.body(name) + '};'; }, filterPrefix: function() { var parts = []; var self = this; forEach(this.state.filters, function(id, filter) { parts.push(id + '=$filter(' + self.escape(filter) + ')'); }); if (parts.length) return 'var ' + parts.join(',') + ';'; return ''; }, varsPrefix: function(section) { return this.state[section].vars.length ? 'var ' + this.state[section].vars.join(',') + ';' : ''; }, body: function(section) { return this.state[section].body.join(''); }, recurse: function(ast, intoId, nameId, recursionFn, create, skipWatchIdCheck) { var left, right, self = this, args, expression, computed; recursionFn = recursionFn || noop; if (!skipWatchIdCheck && isDefined(ast.watchId)) { intoId = intoId || this.nextId(); this.if_('i', this.lazyAssign(intoId, this.computedMember('i', ast.watchId)), this.lazyRecurse(ast, intoId, nameId, recursionFn, create, true) ); return; } switch (ast.type) { case AST.Program: forEach(ast.body, function(expression, pos) { self.recurse(expression.expression, undefined, undefined, function(expr) { right = expr; }); if (pos !== ast.body.length - 1) { self.current().body.push(right, ';'); } else { self.return_(right); } }); break; case AST.Literal: expression = this.escape(ast.value); this.assign(intoId, expression); recursionFn(expression); break; case AST.UnaryExpression: this.recurse(ast.argument, undefined, undefined, function(expr) { right = expr; }); expression = ast.operator + '(' + this.ifDefined(right, 0) + ')'; this.assign(intoId, expression); recursionFn(expression); break; case AST.BinaryExpression: this.recurse(ast.left, undefined, undefined, function(expr) { left = expr; }); this.recurse(ast.right, undefined, undefined, function(expr) { right = expr; }); if (ast.operator === '+') { expression = this.plus(left, right); } else if (ast.operator === '-') { expression = this.ifDefined(left, 0) + ast.operator + this.ifDefined(right, 0); } else { expression = '(' + left + ')' + ast.operator + '(' + right + ')'; } this.assign(intoId, expression); recursionFn(expression); break; case AST.LogicalExpression: intoId = intoId || this.nextId(); self.recurse(ast.left, intoId); self.if_(ast.operator === '&&' ? intoId : self.not(intoId), self.lazyRecurse(ast.right, intoId)); recursionFn(intoId); break; case AST.ConditionalExpression: intoId = intoId || this.nextId(); self.recurse(ast.test, intoId); self.if_(intoId, self.lazyRecurse(ast.alternate, intoId), self.lazyRecurse(ast.consequent, intoId)); recursionFn(intoId); break; case AST.Identifier: intoId = intoId || this.nextId(); if (nameId) { nameId.context = self.stage === 'inputs' ? 's' : this.assign(this.nextId(), this.getHasOwnProperty('l', ast.name) + '?l:s'); nameId.computed = false; nameId.name = ast.name; } ensureSafeMemberName(ast.name); self.if_(self.stage === 'inputs' || self.not(self.getHasOwnProperty('l', ast.name)), function() { self.if_(self.stage === 'inputs' || 's', function() { if (create && create !== 1) { self.if_( self.not(self.nonComputedMember('s', ast.name)), self.lazyAssign(self.nonComputedMember('s', ast.name), '{}')); } self.assign(intoId, self.nonComputedMember('s', ast.name)); }); }, intoId && self.lazyAssign(intoId, self.nonComputedMember('l', ast.name)) ); if (self.state.expensiveChecks || isPossiblyDangerousMemberName(ast.name)) { self.addEnsureSafeObject(intoId); } recursionFn(intoId); break; case AST.MemberExpression: left = nameId && (nameId.context = this.nextId()) || this.nextId(); intoId = intoId || this.nextId(); self.recurse(ast.object, left, undefined, function() { self.if_(self.notNull(left), function() { if (create && create !== 1) { self.addEnsureSafeAssignContext(left); } if (ast.computed) { right = self.nextId(); self.recurse(ast.property, right); self.getStringValue(right); self.addEnsureSafeMemberName(right); if (create && create !== 1) { self.if_(self.not(self.computedMember(left, right)), self.lazyAssign(self.computedMember(left, right), '{}')); } expression = self.ensureSafeObject(self.computedMember(left, right)); self.assign(intoId, expression); if (nameId) { nameId.computed = true; nameId.name = right; } } else { ensureSafeMemberName(ast.property.name); if (create && create !== 1) { self.if_(self.not(self.nonComputedMember(left, ast.property.name)), self.lazyAssign(self.nonComputedMember(left, ast.property.name), '{}')); } expression = self.nonComputedMember(left, ast.property.name); if (self.state.expensiveChecks || isPossiblyDangerousMemberName(ast.property.name)) { expression = self.ensureSafeObject(expression); } self.assign(intoId, expression); if (nameId) { nameId.computed = false; nameId.name = ast.property.name; } } }, function() { self.assign(intoId, 'undefined'); }); recursionFn(intoId); }, !!create); break; case AST.CallExpression: intoId = intoId || this.nextId(); if (ast.filter) { right = self.filter(ast.callee.name); args = []; forEach(ast.arguments, function(expr) { var argument = self.nextId(); self.recurse(expr, argument); args.push(argument); }); expression = right + '(' + args.join(',') + ')'; self.assign(intoId, expression); recursionFn(intoId); } else { right = self.nextId(); left = {}; args = []; self.recurse(ast.callee, right, left, function() { self.if_(self.notNull(right), function() { self.addEnsureSafeFunction(right); forEach(ast.arguments, function(expr) { self.recurse(expr, self.nextId(), undefined, function(argument) { args.push(self.ensureSafeObject(argument)); }); }); if (left.name) { if (!self.state.expensiveChecks) { self.addEnsureSafeObject(left.context); } expression = self.member(left.context, left.name, left.computed) + '(' + args.join(',') + ')'; } else { expression = right + '(' + args.join(',') + ')'; } expression = self.ensureSafeObject(expression); self.assign(intoId, expression); }, function() { self.assign(intoId, 'undefined'); }); recursionFn(intoId); }); } break; case AST.AssignmentExpression: right = this.nextId(); left = {}; if (!isAssignable(ast.left)) { throw $parseMinErr('lval', 'Trying to assign a value to a non l-value'); } this.recurse(ast.left, undefined, left, function() { self.if_(self.notNull(left.context), function() { self.recurse(ast.right, right); self.addEnsureSafeObject(self.member(left.context, left.name, left.computed)); self.addEnsureSafeAssignContext(left.context); expression = self.member(left.context, left.name, left.computed) + ast.operator + right; self.assign(intoId, expression); recursionFn(intoId || expression); }); }, 1); break; case AST.ArrayExpression: args = []; forEach(ast.elements, function(expr) { self.recurse(expr, self.nextId(), undefined, function(argument) { args.push(argument); }); }); expression = '[' + args.join(',') + ']'; this.assign(intoId, expression); recursionFn(expression); break; case AST.ObjectExpression: args = []; computed = false; forEach(ast.properties, function(property) { if (property.computed) { computed = true; } }); if (computed) { intoId = intoId || this.nextId(); this.assign(intoId, '{}'); forEach(ast.properties, function(property) { if (property.computed) { left = self.nextId(); self.recurse(property.key, left); } else { left = property.key.type === AST.Identifier ? property.key.name : ('' + property.key.value); } right = self.nextId(); self.recurse(property.value, right); self.assign(self.member(intoId, left, property.computed), right); }); } else { forEach(ast.properties, function(property) { self.recurse(property.value, ast.constant ? undefined : self.nextId(), undefined, function(expr) { args.push(self.escape( property.key.type === AST.Identifier ? property.key.name : ('' + property.key.value)) + ':' + expr); }); }); expression = '{' + args.join(',') + '}'; this.assign(intoId, expression); } recursionFn(intoId || expression); break; case AST.ThisExpression: this.assign(intoId, 's'); recursionFn('s'); break; case AST.LocalsExpression: this.assign(intoId, 'l'); recursionFn('l'); break; case AST.NGValueParameter: this.assign(intoId, 'v'); recursionFn('v'); break; } }, getHasOwnProperty: function(element, property) { var key = element + '.' + property; var own = this.current().own; if (!own.hasOwnProperty(key)) { own[key] = this.nextId(false, element + '&&(' + this.escape(property) + ' in ' + element + ')'); } return own[key]; }, assign: function(id, value) { if (!id) return; this.current().body.push(id, '=', value, ';'); return id; }, filter: function(filterName) { if (!this.state.filters.hasOwnProperty(filterName)) { this.state.filters[filterName] = this.nextId(true); } return this.state.filters[filterName]; }, ifDefined: function(id, defaultValue) { return 'ifDefined(' + id + ',' + this.escape(defaultValue) + ')'; }, plus: function(left, right) { return 'plus(' + left + ',' + right + ')'; }, return_: function(id) { this.current().body.push('return ', id, ';'); }, if_: function(test, alternate, consequent) { if (test === true) { alternate(); } else { var body = this.current().body; body.push('if(', test, '){'); alternate(); body.push('}'); if (consequent) { body.push('else{'); consequent(); body.push('}'); } } }, not: function(expression) { return '!(' + expression + ')'; }, notNull: function(expression) { return expression + '!=null'; }, nonComputedMember: function(left, right) { var SAFE_IDENTIFIER = /[$_a-zA-Z][$_a-zA-Z0-9]*/; var UNSAFE_CHARACTERS = /[^$_a-zA-Z0-9]/g; if (SAFE_IDENTIFIER.test(right)) { return left + '.' + right; } else { return left + '["' + right.replace(UNSAFE_CHARACTERS, this.stringEscapeFn) + '"]'; } }, computedMember: function(left, right) { return left + '[' + right + ']'; }, member: function(left, right, computed) { if (computed) return this.computedMember(left, right); return this.nonComputedMember(left, right); }, addEnsureSafeObject: function(item) { this.current().body.push(this.ensureSafeObject(item), ';'); }, addEnsureSafeMemberName: function(item) { this.current().body.push(this.ensureSafeMemberName(item), ';'); }, addEnsureSafeFunction: function(item) { this.current().body.push(this.ensureSafeFunction(item), ';'); }, addEnsureSafeAssignContext: function(item) { this.current().body.push(this.ensureSafeAssignContext(item), ';'); }, ensureSafeObject: function(item) { return 'ensureSafeObject(' + item + ',text)'; }, ensureSafeMemberName: function(item) { return 'ensureSafeMemberName(' + item + ',text)'; }, ensureSafeFunction: function(item) { return 'ensureSafeFunction(' + item + ',text)'; }, getStringValue: function(item) { this.assign(item, 'getStringValue(' + item + ')'); }, ensureSafeAssignContext: function(item) { return 'ensureSafeAssignContext(' + item + ',text)'; }, lazyRecurse: function(ast, intoId, nameId, recursionFn, create, skipWatchIdCheck) { var self = this; return function() { self.recurse(ast, intoId, nameId, recursionFn, create, skipWatchIdCheck); }; }, lazyAssign: function(id, value) { var self = this; return function() { self.assign(id, value); }; }, stringEscapeRegex: /[^ a-zA-Z0-9]/g, stringEscapeFn: function(c) { return '\\u' + ('0000' + c.charCodeAt(0).toString(16)).slice(-4); }, escape: function(value) { if (isString(value)) return "'" + value.replace(this.stringEscapeRegex, this.stringEscapeFn) + "'"; if (isNumber(value)) return value.toString(); if (value === true) return 'true'; if (value === false) return 'false'; if (value === null) return 'null'; if (typeof value === 'undefined') return 'undefined'; throw $parseMinErr('esc', 'IMPOSSIBLE'); }, nextId: function(skip, init) { var id = 'v' + (this.state.nextId++); if (!skip) { this.current().vars.push(id + (init ? '=' + init : '')); } return id; }, current: function() { return this.state[this.state.computing]; } }; function ASTInterpreter(astBuilder, $filter) { this.astBuilder = astBuilder; this.$filter = $filter; } ASTInterpreter.prototype = { compile: function(expression, expensiveChecks) { var self = this; var ast = this.astBuilder.ast(expression); this.expression = expression; this.expensiveChecks = expensiveChecks; findConstantAndWatchExpressions(ast, self.$filter); var assignable; var assign; if ((assignable = assignableAST(ast))) { assign = this.recurse(assignable); } var toWatch = getInputs(ast.body); var inputs; if (toWatch) { inputs = []; forEach(toWatch, function(watch, key) { var input = self.recurse(watch); watch.input = input; inputs.push(input); watch.watchId = key; }); } var expressions = []; forEach(ast.body, function(expression) { expressions.push(self.recurse(expression.expression)); }); var fn = ast.body.length === 0 ? noop : ast.body.length === 1 ? expressions[0] : function(scope, locals) { var lastValue; forEach(expressions, function(exp) { lastValue = exp(scope, locals); }); return lastValue; }; if (assign) { fn.assign = function(scope, value, locals) { return assign(scope, locals, value); }; } if (inputs) { fn.inputs = inputs; } fn.literal = isLiteral(ast); fn.constant = isConstant(ast); return fn; }, recurse: function(ast, context, create) { var left, right, self = this, args, expression; if (ast.input) { return this.inputs(ast.input, ast.watchId); } switch (ast.type) { case AST.Literal: return this.value(ast.value, context); case AST.UnaryExpression: right = this.recurse(ast.argument); return this['unary' + ast.operator](right, context); case AST.BinaryExpression: left = this.recurse(ast.left); right = this.recurse(ast.right); return this['binary' + ast.operator](left, right, context); case AST.LogicalExpression: left = this.recurse(ast.left); right = this.recurse(ast.right); return this['binary' + ast.operator](left, right, context); case AST.ConditionalExpression: return this['ternary?:']( this.recurse(ast.test), this.recurse(ast.alternate), this.recurse(ast.consequent), context ); case AST.Identifier: ensureSafeMemberName(ast.name, self.expression); return self.identifier(ast.name, self.expensiveChecks || isPossiblyDangerousMemberName(ast.name), context, create, self.expression); case AST.MemberExpression: left = this.recurse(ast.object, false, !!create); if (!ast.computed) { ensureSafeMemberName(ast.property.name, self.expression); right = ast.property.name; } if (ast.computed) right = this.recurse(ast.property); return ast.computed ? this.computedMember(left, right, context, create, self.expression) : this.nonComputedMember(left, right, self.expensiveChecks, context, create, self.expression); case AST.CallExpression: args = []; forEach(ast.arguments, function(expr) { args.push(self.recurse(expr)); }); if (ast.filter) right = this.$filter(ast.callee.name); if (!ast.filter) right = this.recurse(ast.callee, true); return ast.filter ? function(scope, locals, assign, inputs) { var values = []; for (var i = 0; i < args.length; ++i) { values.push(args[i](scope, locals, assign, inputs)); } var value = right.apply(undefined, values, inputs); return context ? {context: undefined, name: undefined, value: value} : value; } : function(scope, locals, assign, inputs) { var rhs = right(scope, locals, assign, inputs); var value; if (rhs.value != null) { ensureSafeObject(rhs.context, self.expression); ensureSafeFunction(rhs.value, self.expression); var values = []; for (var i = 0; i < args.length; ++i) { values.push(ensureSafeObject(args[i](scope, locals, assign, inputs), self.expression)); } value = ensureSafeObject(rhs.value.apply(rhs.context, values), self.expression); } return context ? {value: value} : value; }; case AST.AssignmentExpression: left = this.recurse(ast.left, true, 1); right = this.recurse(ast.right); return function(scope, locals, assign, inputs) { var lhs = left(scope, locals, assign, inputs); var rhs = right(scope, locals, assign, inputs); ensureSafeObject(lhs.value, self.expression); ensureSafeAssignContext(lhs.context); lhs.context[lhs.name] = rhs; return context ? {value: rhs} : rhs; }; case AST.ArrayExpression: args = []; forEach(ast.elements, function(expr) { args.push(self.recurse(expr)); }); return function(scope, locals, assign, inputs) { var value = []; for (var i = 0; i < args.length; ++i) { value.push(args[i](scope, locals, assign, inputs)); } return context ? {value: value} : value; }; case AST.ObjectExpression: args = []; forEach(ast.properties, function(property) { if (property.computed) { args.push({key: self.recurse(property.key), computed: true, value: self.recurse(property.value) }); } else { args.push({key: property.key.type === AST.Identifier ? property.key.name : ('' + property.key.value), computed: false, value: self.recurse(property.value) }); } }); return function(scope, locals, assign, inputs) { var value = {}; for (var i = 0; i < args.length; ++i) { if (args[i].computed) { value[args[i].key(scope, locals, assign, inputs)] = args[i].value(scope, locals, assign, inputs); } else { value[args[i].key] = args[i].value(scope, locals, assign, inputs); } } return context ? {value: value} : value; }; case AST.ThisExpression: return function(scope) { return context ? {value: scope} : scope; }; case AST.LocalsExpression: return function(scope, locals) { return context ? {value: locals} : locals; }; case AST.NGValueParameter: return function(scope, locals, assign) { return context ? {value: assign} : assign; }; } }, 'unary+': function(argument, context) { return function(scope, locals, assign, inputs) { var arg = argument(scope, locals, assign, inputs); if (isDefined(arg)) { arg = +arg; } else { arg = 0; } return context ? {value: arg} : arg; }; }, 'unary-': function(argument, context) { return function(scope, locals, assign, inputs) { var arg = argument(scope, locals, assign, inputs); if (isDefined(arg)) { arg = -arg; } else { arg = 0; } return context ? {value: arg} : arg; }; }, 'unary!': function(argument, context) { return function(scope, locals, assign, inputs) { var arg = !argument(scope, locals, assign, inputs); return context ? {value: arg} : arg; }; }, 'binary+': function(left, right, context) { return function(scope, locals, assign, inputs) { var lhs = left(scope, locals, assign, inputs); var rhs = right(scope, locals, assign, inputs); var arg = plusFn(lhs, rhs); return context ? {value: arg} : arg; }; }, 'binary-': function(left, right, context) { return function(scope, locals, assign, inputs) { var lhs = left(scope, locals, assign, inputs); var rhs = right(scope, locals, assign, inputs); var arg = (isDefined(lhs) ? lhs : 0) - (isDefined(rhs) ? rhs : 0); return context ? {value: arg} : arg; }; }, 'binary*': function(left, right, context) { return function(scope, locals, assign, inputs) { var arg = left(scope, locals, assign, inputs) * right(scope, locals, assign, inputs); return context ? {value: arg} : arg; }; }, 'binary/': function(left, right, context) { return function(scope, locals, assign, inputs) { var arg = left(scope, locals, assign, inputs) / right(scope, locals, assign, inputs); return context ? {value: arg} : arg; }; }, 'binary%': function(left, right, context) { return function(scope, locals, assign, inputs) { var arg = left(scope, locals, assign, inputs) % right(scope, locals, assign, inputs); return context ? {value: arg} : arg; }; }, 'binary===': function(left, right, context) { return function(scope, locals, assign, inputs) { var arg = left(scope, locals, assign, inputs) === right(scope, locals, assign, inputs); return context ? {value: arg} : arg; }; }, 'binary!==': function(left, right, context) { return function(scope, locals, assign, inputs) { var arg = left(scope, locals, assign, inputs) !== right(scope, locals, assign, inputs); return context ? {value: arg} : arg; }; }, 'binary==': function(left, right, context) { return function(scope, locals, assign, inputs) { var arg = left(scope, locals, assign, inputs) == right(scope, locals, assign, inputs); return context ? {value: arg} : arg; }; }, 'binary!=': function(left, right, context) { return function(scope, locals, assign, inputs) { var arg = left(scope, locals, assign, inputs) != right(scope, locals, assign, inputs); return context ? {value: arg} : arg; }; }, 'binary<': function(left, right, context) { return function(scope, locals, assign, inputs) { var arg = left(scope, locals, assign, inputs) < right(scope, locals, assign, inputs); return context ? {value: arg} : arg; }; }, 'binary>': function(left, right, context) { return function(scope, locals, assign, inputs) { var arg = left(scope, locals, assign, inputs) > right(scope, locals, assign, inputs); return context ? {value: arg} : arg; }; }, 'binary<=': function(left, right, context) { return function(scope, locals, assign, inputs) { var arg = left(scope, locals, assign, inputs) <= right(scope, locals, assign, inputs); return context ? {value: arg} : arg; }; }, 'binary>=': function(left, right, context) { return function(scope, locals, assign, inputs) { var arg = left(scope, locals, assign, inputs) >= right(scope, locals, assign, inputs); return context ? {value: arg} : arg; }; }, 'binary&&': function(left, right, context) { return function(scope, locals, assign, inputs) { var arg = left(scope, locals, assign, inputs) && right(scope, locals, assign, inputs); return context ? {value: arg} : arg; }; }, 'binary||': function(left, right, context) { return function(scope, locals, assign, inputs) { var arg = left(scope, locals, assign, inputs) || right(scope, locals, assign, inputs); return context ? {value: arg} : arg; }; }, 'ternary?:': function(test, alternate, consequent, context) { return function(scope, locals, assign, inputs) { var arg = test(scope, locals, assign, inputs) ? alternate(scope, locals, assign, inputs) : consequent(scope, locals, assign, inputs); return context ? {value: arg} : arg; }; }, value: function(value, context) { return function() { return context ? {context: undefined, name: undefined, value: value} : value; }; }, identifier: function(name, expensiveChecks, context, create, expression) { return function(scope, locals, assign, inputs) { var base = locals && (name in locals) ? locals : scope; if (create && create !== 1 && base && !(base[name])) { base[name] = {}; } var value = base ? base[name] : undefined; if (expensiveChecks) { ensureSafeObject(value, expression); } if (context) { return {context: base, name: name, value: value}; } else { return value; } }; }, computedMember: function(left, right, context, create, expression) { return function(scope, locals, assign, inputs) { var lhs = left(scope, locals, assign, inputs); var rhs; var value; if (lhs != null) { rhs = right(scope, locals, assign, inputs); rhs = getStringValue(rhs); ensureSafeMemberName(rhs, expression); if (create && create !== 1) { ensureSafeAssignContext(lhs); if (lhs && !(lhs[rhs])) { lhs[rhs] = {}; } } value = lhs[rhs]; ensureSafeObject(value, expression); } if (context) { return {context: lhs, name: rhs, value: value}; } else { return value; } }; }, nonComputedMember: function(left, right, expensiveChecks, context, create, expression) { return function(scope, locals, assign, inputs) { var lhs = left(scope, locals, assign, inputs); if (create && create !== 1) { ensureSafeAssignContext(lhs); if (lhs && !(lhs[right])) { lhs[right] = {}; } } var value = lhs != null ? lhs[right] : undefined; if (expensiveChecks || isPossiblyDangerousMemberName(right)) { ensureSafeObject(value, expression); } if (context) { return {context: lhs, name: right, value: value}; } else { return value; } }; }, inputs: function(input, watchId) { return function(scope, value, locals, inputs) { if (inputs) return inputs[watchId]; return input(scope, value, locals); }; } }; /** * @constructor */ var Parser = function(lexer, $filter, options) { this.lexer = lexer; this.$filter = $filter; this.options = options; this.ast = new AST(lexer, options); this.astCompiler = options.csp ? new ASTInterpreter(this.ast, $filter) : new ASTCompiler(this.ast, $filter); }; Parser.prototype = { constructor: Parser, parse: function(text) { return this.astCompiler.compile(text, this.options.expensiveChecks); } }; function isPossiblyDangerousMemberName(name) { return name == 'constructor'; } var objectValueOf = Object.prototype.valueOf; function getValueOf(value) { return isFunction(value.valueOf) ? value.valueOf() : objectValueOf.call(value); } /////////////////////////////////// /** * @ngdoc service * @name $parse * @kind function * * @description * * Converts Angular {@link guide/expression expression} into a function. * * ```js * var getter = $parse('user.name'); * var setter = getter.assign; * var context = {user:{name:'angular'}}; * var locals = {user:{name:'local'}}; * * expect(getter(context)).toEqual('angular'); * setter(context, 'newValue'); * expect(context.user.name).toEqual('newValue'); * expect(getter(context, locals)).toEqual('local'); * ``` * * * @param {string} expression String expression to compile. * @returns {function(context, locals)} a function which represents the compiled expression: * * * `context` – `{object}` – an object against which any expressions embedded in the strings * are evaluated against (typically a scope object). * * `locals` – `{object=}` – local variables context object, useful for overriding values in * `context`. * * The returned function also has the following properties: * * `literal` – `{boolean}` – whether the expression's top-level node is a JavaScript * literal. * * `constant` – `{boolean}` – whether the expression is made entirely of JavaScript * constant literals. * * `assign` – `{?function(context, value)}` – if the expression is assignable, this will be * set to a function to change its value on the given context. * */ /** * @ngdoc provider * @name $parseProvider * * @description * `$parseProvider` can be used for configuring the default behavior of the {@link ng.$parse $parse} * service. */ function $ParseProvider() { var cacheDefault = createMap(); var cacheExpensive = createMap(); var literals = { 'true': true, 'false': false, 'null': null, 'undefined': undefined }; var identStart, identContinue; /** * @ngdoc method * @name $parseProvider#addLiteral * @description * * Configure $parse service to add literal values that will be present as literal at expressions. * * @param {string} literalName Token for the literal value. The literal name value must be a valid literal name. * @param {*} literalValue Value for this literal. All literal values must be primitives or `undefined`. * **/ this.addLiteral = function(literalName, literalValue) { literals[literalName] = literalValue; }; /** * @ngdoc method * @name $parseProvider#setIdentifierFns * @description * * Allows defining the set of characters that are allowed in Angular expressions. The function * `identifierStart` will get called to know if a given character is a valid character to be the * first character for an identifier. The function `identifierContinue` will get called to know if * a given character is a valid character to be a follow-up identifier character. The functions * `identifierStart` and `identifierContinue` will receive as arguments the single character to be * identifier and the character code point. These arguments will be `string` and `numeric`. Keep in * mind that the `string` parameter can be two characters long depending on the character * representation. It is expected for the function to return `true` or `false`, whether that * character is allowed or not. * * Since this function will be called extensivelly, keep the implementation of these functions fast, * as the performance of these functions have a direct impact on the expressions parsing speed. * * @param {function=} identifierStart The function that will decide whether the given character is * a valid identifier start character. * @param {function=} identifierContinue The function that will decide whether the given character is * a valid identifier continue character. */ this.setIdentifierFns = function(identifierStart, identifierContinue) { identStart = identifierStart; identContinue = identifierContinue; return this; }; this.$get = ['$filter', function($filter) { var noUnsafeEval = csp().noUnsafeEval; var $parseOptions = { csp: noUnsafeEval, expensiveChecks: false, literals: copy(literals), isIdentifierStart: isFunction(identStart) && identStart, isIdentifierContinue: isFunction(identContinue) && identContinue }, $parseOptionsExpensive = { csp: noUnsafeEval, expensiveChecks: true, literals: copy(literals), isIdentifierStart: isFunction(identStart) && identStart, isIdentifierContinue: isFunction(identContinue) && identContinue }; var runningChecksEnabled = false; $parse.$$runningExpensiveChecks = function() { return runningChecksEnabled; }; return $parse; function $parse(exp, interceptorFn, expensiveChecks) { var parsedExpression, oneTime, cacheKey; expensiveChecks = expensiveChecks || runningChecksEnabled; switch (typeof exp) { case 'string': exp = exp.trim(); cacheKey = exp; var cache = (expensiveChecks ? cacheExpensive : cacheDefault); parsedExpression = cache[cacheKey]; if (!parsedExpression) { if (exp.charAt(0) === ':' && exp.charAt(1) === ':') { oneTime = true; exp = exp.substring(2); } var parseOptions = expensiveChecks ? $parseOptionsExpensive : $parseOptions; var lexer = new Lexer(parseOptions); var parser = new Parser(lexer, $filter, parseOptions); parsedExpression = parser.parse(exp); if (parsedExpression.constant) { parsedExpression.$$watchDelegate = constantWatchDelegate; } else if (oneTime) { parsedExpression.$$watchDelegate = parsedExpression.literal ? oneTimeLiteralWatchDelegate : oneTimeWatchDelegate; } else if (parsedExpression.inputs) { parsedExpression.$$watchDelegate = inputsWatchDelegate; } if (expensiveChecks) { parsedExpression = expensiveChecksInterceptor(parsedExpression); } cache[cacheKey] = parsedExpression; } return addInterceptor(parsedExpression, interceptorFn); case 'function': return addInterceptor(exp, interceptorFn); default: return addInterceptor(noop, interceptorFn); } } function expensiveChecksInterceptor(fn) { if (!fn) return fn; expensiveCheckFn.$$watchDelegate = fn.$$watchDelegate; expensiveCheckFn.assign = expensiveChecksInterceptor(fn.assign); expensiveCheckFn.constant = fn.constant; expensiveCheckFn.literal = fn.literal; for (var i = 0; fn.inputs && i < fn.inputs.length; ++i) { fn.inputs[i] = expensiveChecksInterceptor(fn.inputs[i]); } expensiveCheckFn.inputs = fn.inputs; return expensiveCheckFn; function expensiveCheckFn(scope, locals, assign, inputs) { var expensiveCheckOldValue = runningChecksEnabled; runningChecksEnabled = true; try { return fn(scope, locals, assign, inputs); } finally { runningChecksEnabled = expensiveCheckOldValue; } } } function expressionInputDirtyCheck(newValue, oldValueOfValue) { if (newValue == null || oldValueOfValue == null) { // null/undefined return newValue === oldValueOfValue; } if (typeof newValue === 'object') { // attempt to convert the value to a primitive type // TODO(docs): add a note to docs that by implementing valueOf even objects and arrays can // be cheaply dirty-checked newValue = getValueOf(newValue); if (typeof newValue === 'object') { // objects/arrays are not supported - deep-watching them would be too expensive return false; } // fall-through to the primitive equality check } //Primitive or NaN return newValue === oldValueOfValue || (newValue !== newValue && oldValueOfValue !== oldValueOfValue); } function inputsWatchDelegate(scope, listener, objectEquality, parsedExpression, prettyPrintExpression) { var inputExpressions = parsedExpression.inputs; var lastResult; if (inputExpressions.length === 1) { var oldInputValueOf = expressionInputDirtyCheck; // init to something unique so that equals check fails inputExpressions = inputExpressions[0]; return scope.$watch(function expressionInputWatch(scope) { var newInputValue = inputExpressions(scope); if (!expressionInputDirtyCheck(newInputValue, oldInputValueOf)) { lastResult = parsedExpression(scope, undefined, undefined, [newInputValue]); oldInputValueOf = newInputValue && getValueOf(newInputValue); } return lastResult; }, listener, objectEquality, prettyPrintExpression); } var oldInputValueOfValues = []; var oldInputValues = []; for (var i = 0, ii = inputExpressions.length; i < ii; i++) { oldInputValueOfValues[i] = expressionInputDirtyCheck; // init to something unique so that equals check fails oldInputValues[i] = null; } return scope.$watch(function expressionInputsWatch(scope) { var changed = false; for (var i = 0, ii = inputExpressions.length; i < ii; i++) { var newInputValue = inputExpressions[i](scope); if (changed || (changed = !expressionInputDirtyCheck(newInputValue, oldInputValueOfValues[i]))) { oldInputValues[i] = newInputValue; oldInputValueOfValues[i] = newInputValue && getValueOf(newInputValue); } } if (changed) { lastResult = parsedExpression(scope, undefined, undefined, oldInputValues); } return lastResult; }, listener, objectEquality, prettyPrintExpression); } function oneTimeWatchDelegate(scope, listener, objectEquality, parsedExpression) { var unwatch, lastValue; return unwatch = scope.$watch(function oneTimeWatch(scope) { return parsedExpression(scope); }, function oneTimeListener(value, old, scope) { lastValue = value; if (isFunction(listener)) { listener.apply(this, arguments); } if (isDefined(value)) { scope.$$postDigest(function() { if (isDefined(lastValue)) { unwatch(); } }); } }, objectEquality); } function oneTimeLiteralWatchDelegate(scope, listener, objectEquality, parsedExpression) { var unwatch, lastValue; return unwatch = scope.$watch(function oneTimeWatch(scope) { return parsedExpression(scope); }, function oneTimeListener(value, old, scope) { lastValue = value; if (isFunction(listener)) { listener.call(this, value, old, scope); } if (isAllDefined(value)) { scope.$$postDigest(function() { if (isAllDefined(lastValue)) unwatch(); }); } }, objectEquality); function isAllDefined(value) { var allDefined = true; forEach(value, function(val) { if (!isDefined(val)) allDefined = false; }); return allDefined; } } function constantWatchDelegate(scope, listener, objectEquality, parsedExpression) { var unwatch; return unwatch = scope.$watch(function constantWatch(scope) { unwatch(); return parsedExpression(scope); }, listener, objectEquality); } function addInterceptor(parsedExpression, interceptorFn) { if (!interceptorFn) return parsedExpression; var watchDelegate = parsedExpression.$$watchDelegate; var useInputs = false; var regularWatch = watchDelegate !== oneTimeLiteralWatchDelegate && watchDelegate !== oneTimeWatchDelegate; var fn = regularWatch ? function regularInterceptedExpression(scope, locals, assign, inputs) { var value = useInputs && inputs ? inputs[0] : parsedExpression(scope, locals, assign, inputs); return interceptorFn(value, scope, locals); } : function oneTimeInterceptedExpression(scope, locals, assign, inputs) { var value = parsedExpression(scope, locals, assign, inputs); var result = interceptorFn(value, scope, locals); // we only return the interceptor's result if the // initial value is defined (for bind-once) return isDefined(value) ? result : value; }; // Propagate $$watchDelegates other then inputsWatchDelegate if (parsedExpression.$$watchDelegate && parsedExpression.$$watchDelegate !== inputsWatchDelegate) { fn.$$watchDelegate = parsedExpression.$$watchDelegate; } else if (!interceptorFn.$stateful) { // If there is an interceptor, but no watchDelegate then treat the interceptor like // we treat filters - it is assumed to be a pure function unless flagged with $stateful fn.$$watchDelegate = inputsWatchDelegate; useInputs = !parsedExpression.inputs; fn.inputs = parsedExpression.inputs ? parsedExpression.inputs : [parsedExpression]; } return fn; } }]; } /** * @ngdoc service * @name $q * @requires $rootScope * * @description * A service that helps you run functions asynchronously, and use their return values (or exceptions) * when they are done processing. * * This is an implementation of promises/deferred objects inspired by * [Kris Kowal's Q](https://github.com/kriskowal/q). * * $q can be used in two fashions --- one which is more similar to Kris Kowal's Q or jQuery's Deferred * implementations, and the other which resembles ES6 (ES2015) promises to some degree. * * # $q constructor * * The streamlined ES6 style promise is essentially just using $q as a constructor which takes a `resolver` * function as the first argument. This is similar to the native Promise implementation from ES6, * see [MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise). * * While the constructor-style use is supported, not all of the supporting methods from ES6 promises are * available yet. * * It can be used like so: * * ```js * // for the purpose of this example let's assume that variables `$q` and `okToGreet` * // are available in the current lexical scope (they could have been injected or passed in). * * function asyncGreet(name) { * // perform some asynchronous operation, resolve or reject the promise when appropriate. * return $q(function(resolve, reject) { * setTimeout(function() { * if (okToGreet(name)) { * resolve('Hello, ' + name + '!'); * } else { * reject('Greeting ' + name + ' is not allowed.'); * } * }, 1000); * }); * } * * var promise = asyncGreet('Robin Hood'); * promise.then(function(greeting) { * alert('Success: ' + greeting); * }, function(reason) { * alert('Failed: ' + reason); * }); * ``` * * Note: progress/notify callbacks are not currently supported via the ES6-style interface. * * Note: unlike ES6 behavior, an exception thrown in the constructor function will NOT implicitly reject the promise. * * However, the more traditional CommonJS-style usage is still available, and documented below. * * [The CommonJS Promise proposal](http://wiki.commonjs.org/wiki/Promises) describes a promise as an * interface for interacting with an object that represents the result of an action that is * performed asynchronously, and may or may not be finished at any given point in time. * * From the perspective of dealing with error handling, deferred and promise APIs are to * asynchronous programming what `try`, `catch` and `throw` keywords are to synchronous programming. * * ```js * // for the purpose of this example let's assume that variables `$q` and `okToGreet` * // are available in the current lexical scope (they could have been injected or passed in). * * function asyncGreet(name) { * var deferred = $q.defer(); * * setTimeout(function() { * deferred.notify('About to greet ' + name + '.'); * * if (okToGreet(name)) { * deferred.resolve('Hello, ' + name + '!'); * } else { * deferred.reject('Greeting ' + name + ' is not allowed.'); * } * }, 1000); * * return deferred.promise; * } * * var promise = asyncGreet('Robin Hood'); * promise.then(function(greeting) { * alert('Success: ' + greeting); * }, function(reason) { * alert('Failed: ' + reason); * }, function(update) { * alert('Got notification: ' + update); * }); * ``` * * At first it might not be obvious why this extra complexity is worth the trouble. The payoff * comes in the way of guarantees that promise and deferred APIs make, see * https://github.com/kriskowal/uncommonjs/blob/master/promises/specification.md. * * Additionally the promise api allows for composition that is very hard to do with the * traditional callback ([CPS](http://en.wikipedia.org/wiki/Continuation-passing_style)) approach. * For more on this please see the [Q documentation](https://github.com/kriskowal/q) especially the * section on serial or parallel joining of promises. * * # The Deferred API * * A new instance of deferred is constructed by calling `$q.defer()`. * * The purpose of the deferred object is to expose the associated Promise instance as well as APIs * that can be used for signaling the successful or unsuccessful completion, as well as the status * of the task. * * **Methods** * * - `resolve(value)` – resolves the derived promise with the `value`. If the value is a rejection * constructed via `$q.reject`, the promise will be rejected instead. * - `reject(reason)` – rejects the derived promise with the `reason`. This is equivalent to * resolving it with a rejection constructed via `$q.reject`. * - `notify(value)` - provides updates on the status of the promise's execution. This may be called * multiple times before the promise is either resolved or rejected. * * **Properties** * * - promise – `{Promise}` – promise object associated with this deferred. * * * # The Promise API * * A new promise instance is created when a deferred instance is created and can be retrieved by * calling `deferred.promise`. * * The purpose of the promise object is to allow for interested parties to get access to the result * of the deferred task when it completes. * * **Methods** * * - `then(successCallback, [errorCallback], [notifyCallback])` – regardless of when the promise was or * will be resolved or rejected, `then` calls one of the success or error callbacks asynchronously * as soon as the result is available. The callbacks are called with a single argument: the result * or rejection reason. Additionally, the notify callback may be called zero or more times to * provide a progress indication, before the promise is resolved or rejected. * * This method *returns a new promise* which is resolved or rejected via the return value of the * `successCallback`, `errorCallback` (unless that value is a promise, in which case it is resolved * with the value which is resolved in that promise using * [promise chaining](http://www.html5rocks.com/en/tutorials/es6/promises/#toc-promises-queues)). * It also notifies via the return value of the `notifyCallback` method. The promise cannot be * resolved or rejected from the notifyCallback method. The errorCallback and notifyCallback * arguments are optional. * * - `catch(errorCallback)` – shorthand for `promise.then(null, errorCallback)` * * - `finally(callback, notifyCallback)` – allows you to observe either the fulfillment or rejection of a promise, * but to do so without modifying the final value. This is useful to release resources or do some * clean-up that needs to be done whether the promise was rejected or resolved. See the [full * specification](https://github.com/kriskowal/q/wiki/API-Reference#promisefinallycallback) for * more information. * * # Chaining promises * * Because calling the `then` method of a promise returns a new derived promise, it is easily * possible to create a chain of promises: * * ```js * promiseB = promiseA.then(function(result) { * return result + 1; * }); * * // promiseB will be resolved immediately after promiseA is resolved and its value * // will be the result of promiseA incremented by 1 * ``` * * It is possible to create chains of any length and since a promise can be resolved with another * promise (which will defer its resolution further), it is possible to pause/defer resolution of * the promises at any point in the chain. This makes it possible to implement powerful APIs like * $http's response interceptors. * * * # Differences between Kris Kowal's Q and $q * * There are two main differences: * * - $q is integrated with the {@link ng.$rootScope.Scope} Scope model observation * mechanism in angular, which means faster propagation of resolution or rejection into your * models and avoiding unnecessary browser repaints, which would result in flickering UI. * - Q has many more features than $q, but that comes at a cost of bytes. $q is tiny, but contains * all the important functionality needed for common async tasks. * * # Testing * * ```js * it('should simulate promise', inject(function($q, $rootScope) { * var deferred = $q.defer(); * var promise = deferred.promise; * var resolvedValue; * * promise.then(function(value) { resolvedValue = value; }); * expect(resolvedValue).toBeUndefined(); * * // Simulate resolving of promise * deferred.resolve(123); * // Note that the 'then' function does not get called synchronously. * // This is because we want the promise API to always be async, whether or not * // it got called synchronously or asynchronously. * expect(resolvedValue).toBeUndefined(); * * // Propagate promise resolution to 'then' functions using $apply(). * $rootScope.$apply(); * expect(resolvedValue).toEqual(123); * })); * ``` * * @param {function(function, function)} resolver Function which is responsible for resolving or * rejecting the newly created promise. The first parameter is a function which resolves the * promise, the second parameter is a function which rejects the promise. * * @returns {Promise} The newly created promise. */ function $QProvider() { this.$get = ['$rootScope', '$exceptionHandler', function($rootScope, $exceptionHandler) { return qFactory(function(callback) { $rootScope.$evalAsync(callback); }, $exceptionHandler); }]; } function $$QProvider() { this.$get = ['$browser', '$exceptionHandler', function($browser, $exceptionHandler) { return qFactory(function(callback) { $browser.defer(callback); }, $exceptionHandler); }]; } /** * Constructs a promise manager. * * @param {function(function)} nextTick Function for executing functions in the next turn. * @param {function(...*)} exceptionHandler Function into which unexpected exceptions are passed for * debugging purposes. * @returns {object} Promise manager. */ function qFactory(nextTick, exceptionHandler) { var $qMinErr = minErr('$q', TypeError); /** * @ngdoc method * @name ng.$q#defer * @kind function * * @description * Creates a `Deferred` object which represents a task which will finish in the future. * * @returns {Deferred} Returns a new instance of deferred. */ var defer = function() { var d = new Deferred(); //Necessary to support unbound execution :/ d.resolve = simpleBind(d, d.resolve); d.reject = simpleBind(d, d.reject); d.notify = simpleBind(d, d.notify); return d; }; function Promise() { this.$$state = { status: 0 }; } extend(Promise.prototype, { then: function(onFulfilled, onRejected, progressBack) { if (isUndefined(onFulfilled) && isUndefined(onRejected) && isUndefined(progressBack)) { return this; } var result = new Deferred(); this.$$state.pending = this.$$state.pending || []; this.$$state.pending.push([result, onFulfilled, onRejected, progressBack]); if (this.$$state.status > 0) scheduleProcessQueue(this.$$state); return result.promise; }, "catch": function(callback) { return this.then(null, callback); }, "finally": function(callback, progressBack) { return this.then(function(value) { return handleCallback(value, true, callback); }, function(error) { return handleCallback(error, false, callback); }, progressBack); } }); //Faster, more basic than angular.bind http://jsperf.com/angular-bind-vs-custom-vs-native function simpleBind(context, fn) { return function(value) { fn.call(context, value); }; } function processQueue(state) { var fn, deferred, pending; pending = state.pending; state.processScheduled = false; state.pending = undefined; for (var i = 0, ii = pending.length; i < ii; ++i) { deferred = pending[i][0]; fn = pending[i][state.status]; try { if (isFunction(fn)) { deferred.resolve(fn(state.value)); } else if (state.status === 1) { deferred.resolve(state.value); } else { deferred.reject(state.value); } } catch (e) { deferred.reject(e); exceptionHandler(e); } } } function scheduleProcessQueue(state) { if (state.processScheduled || !state.pending) return; state.processScheduled = true; nextTick(function() { processQueue(state); }); } function Deferred() { this.promise = new Promise(); } extend(Deferred.prototype, { resolve: function(val) { if (this.promise.$$state.status) return; if (val === this.promise) { this.$$reject($qMinErr( 'qcycle', "Expected promise to be resolved with value other than itself '{0}'", val)); } else { this.$$resolve(val); } }, $$resolve: function(val) { var then; var that = this; var done = false; try { if ((isObject(val) || isFunction(val))) then = val && val.then; if (isFunction(then)) { this.promise.$$state.status = -1; then.call(val, resolvePromise, rejectPromise, simpleBind(this, this.notify)); } else { this.promise.$$state.value = val; this.promise.$$state.status = 1; scheduleProcessQueue(this.promise.$$state); } } catch (e) { rejectPromise(e); exceptionHandler(e); } function resolvePromise(val) { if (done) return; done = true; that.$$resolve(val); } function rejectPromise(val) { if (done) return; done = true; that.$$reject(val); } }, reject: function(reason) { if (this.promise.$$state.status) return; this.$$reject(reason); }, $$reject: function(reason) { this.promise.$$state.value = reason; this.promise.$$state.status = 2; scheduleProcessQueue(this.promise.$$state); }, notify: function(progress) { var callbacks = this.promise.$$state.pending; if ((this.promise.$$state.status <= 0) && callbacks && callbacks.length) { nextTick(function() { var callback, result; for (var i = 0, ii = callbacks.length; i < ii; i++) { result = callbacks[i][0]; callback = callbacks[i][3]; try { result.notify(isFunction(callback) ? callback(progress) : progress); } catch (e) { exceptionHandler(e); } } }); } } }); /** * @ngdoc method * @name $q#reject * @kind function * * @description * Creates a promise that is resolved as rejected with the specified `reason`. This api should be * used to forward rejection in a chain of promises. If you are dealing with the last promise in * a promise chain, you don't need to worry about it. * * When comparing deferreds/promises to the familiar behavior of try/catch/throw, think of * `reject` as the `throw` keyword in JavaScript. This also means that if you "catch" an error via * a promise error callback and you want to forward the error to the promise derived from the * current promise, you have to "rethrow" the error by returning a rejection constructed via * `reject`. * * ```js * promiseB = promiseA.then(function(result) { * // success: do something and resolve promiseB * // with the old or a new result * return result; * }, function(reason) { * // error: handle the error if possible and * // resolve promiseB with newPromiseOrValue, * // otherwise forward the rejection to promiseB * if (canHandle(reason)) { * // handle the error and recover * return newPromiseOrValue; * } * return $q.reject(reason); * }); * ``` * * @param {*} reason Constant, message, exception or an object representing the rejection reason. * @returns {Promise} Returns a promise that was already resolved as rejected with the `reason`. */ var reject = function(reason) { var result = new Deferred(); result.reject(reason); return result.promise; }; var makePromise = function makePromise(value, resolved) { var result = new Deferred(); if (resolved) { result.resolve(value); } else { result.reject(value); } return result.promise; }; var handleCallback = function handleCallback(value, isResolved, callback) { var callbackOutput = null; try { if (isFunction(callback)) callbackOutput = callback(); } catch (e) { return makePromise(e, false); } if (isPromiseLike(callbackOutput)) { return callbackOutput.then(function() { return makePromise(value, isResolved); }, function(error) { return makePromise(error, false); }); } else { return makePromise(value, isResolved); } }; /** * @ngdoc method * @name $q#when * @kind function * * @description * Wraps an object that might be a value or a (3rd party) then-able promise into a $q promise. * This is useful when you are dealing with an object that might or might not be a promise, or if * the promise comes from a source that can't be trusted. * * @param {*} value Value or a promise * @param {Function=} successCallback * @param {Function=} errorCallback * @param {Function=} progressCallback * @returns {Promise} Returns a promise of the passed value or promise */ var when = function(value, callback, errback, progressBack) { var result = new Deferred(); result.resolve(value); return result.promise.then(callback, errback, progressBack); }; /** * @ngdoc method * @name $q#resolve * @kind function * * @description * Alias of {@link ng.$q#when when} to maintain naming consistency with ES6. * * @param {*} value Value or a promise * @param {Function=} successCallback * @param {Function=} errorCallback * @param {Function=} progressCallback * @returns {Promise} Returns a promise of the passed value or promise */ var resolve = when; /** * @ngdoc method * @name $q#all * @kind function * * @description * Combines multiple promises into a single promise that is resolved when all of the input * promises are resolved. * * @param {Array.|Object.} promises An array or hash of promises. * @returns {Promise} Returns a single promise that will be resolved with an array/hash of values, * each value corresponding to the promise at the same index/key in the `promises` array/hash. * If any of the promises is resolved with a rejection, this resulting promise will be rejected * with the same rejection value. */ function all(promises) { var deferred = new Deferred(), counter = 0, results = isArray(promises) ? [] : {}; forEach(promises, function(promise, key) { counter++; when(promise).then(function(value) { if (results.hasOwnProperty(key)) return; results[key] = value; if (!(--counter)) deferred.resolve(results); }, function(reason) { if (results.hasOwnProperty(key)) return; deferred.reject(reason); }); }); if (counter === 0) { deferred.resolve(results); } return deferred.promise; } /** * @ngdoc method * @name $q#race * @kind function * * @description * Returns a promise that resolves or rejects as soon as one of those promises * resolves or rejects, with the value or reason from that promise. * * @param {Array.|Object.} promises An array or hash of promises. * @returns {Promise} a promise that resolves or rejects as soon as one of the `promises` * resolves or rejects, with the value or reason from that promise. */ function race(promises) { var deferred = defer(); forEach(promises, function(promise) { when(promise).then(deferred.resolve, deferred.reject); }); return deferred.promise; } var $Q = function Q(resolver) { if (!isFunction(resolver)) { throw $qMinErr('norslvr', "Expected resolverFn, got '{0}'", resolver); } var deferred = new Deferred(); function resolveFn(value) { deferred.resolve(value); } function rejectFn(reason) { deferred.reject(reason); } resolver(resolveFn, rejectFn); return deferred.promise; }; // Let's make the instanceof operator work for promises, so that // `new $q(fn) instanceof $q` would evaluate to true. $Q.prototype = Promise.prototype; $Q.defer = defer; $Q.reject = reject; $Q.when = when; $Q.resolve = resolve; $Q.all = all; $Q.race = race; return $Q; } function $$RAFProvider() { //rAF this.$get = ['$window', '$timeout', function($window, $timeout) { var requestAnimationFrame = $window.requestAnimationFrame || $window.webkitRequestAnimationFrame; var cancelAnimationFrame = $window.cancelAnimationFrame || $window.webkitCancelAnimationFrame || $window.webkitCancelRequestAnimationFrame; var rafSupported = !!requestAnimationFrame; var raf = rafSupported ? function(fn) { var id = requestAnimationFrame(fn); return function() { cancelAnimationFrame(id); }; } : function(fn) { var timer = $timeout(fn, 16.66, false); // 1000 / 60 = 16.666 return function() { $timeout.cancel(timer); }; }; raf.supported = rafSupported; return raf; }]; } /** * DESIGN NOTES * * The design decisions behind the scope are heavily favored for speed and memory consumption. * * The typical use of scope is to watch the expressions, which most of the time return the same * value as last time so we optimize the operation. * * Closures construction is expensive in terms of speed as well as memory: * - No closures, instead use prototypical inheritance for API * - Internal state needs to be stored on scope directly, which means that private state is * exposed as $$____ properties * * Loop operations are optimized by using while(count--) { ... } * - This means that in order to keep the same order of execution as addition we have to add * items to the array at the beginning (unshift) instead of at the end (push) * * Child scopes are created and removed often * - Using an array would be slow since inserts in the middle are expensive; so we use linked lists * * There are fewer watches than observers. This is why you don't want the observer to be implemented * in the same way as watch. Watch requires return of the initialization function which is expensive * to construct. */ /** * @ngdoc provider * @name $rootScopeProvider * @description * * Provider for the $rootScope service. */ /** * @ngdoc method * @name $rootScopeProvider#digestTtl * @description * * Sets the number of `$digest` iterations the scope should attempt to execute before giving up and * assuming that the model is unstable. * * The current default is 10 iterations. * * In complex applications it's possible that the dependencies between `$watch`s will result in * several digest iterations. However if an application needs more than the default 10 digest * iterations for its model to stabilize then you should investigate what is causing the model to * continuously change during the digest. * * Increasing the TTL could have performance implications, so you should not change it without * proper justification. * * @param {number} limit The number of digest iterations. */ /** * @ngdoc service * @name $rootScope * @description * * Every application has a single root {@link ng.$rootScope.Scope scope}. * All other scopes are descendant scopes of the root scope. Scopes provide separation * between the model and the view, via a mechanism for watching the model for changes. * They also provide event emission/broadcast and subscription facility. See the * {@link guide/scope developer guide on scopes}. */ function $RootScopeProvider() { var TTL = 10; var $rootScopeMinErr = minErr('$rootScope'); var lastDirtyWatch = null; var applyAsyncId = null; this.digestTtl = function(value) { if (arguments.length) { TTL = value; } return TTL; }; function createChildScopeClass(parent) { function ChildScope() { this.$$watchers = this.$$nextSibling = this.$$childHead = this.$$childTail = null; this.$$listeners = {}; this.$$listenerCount = {}; this.$$watchersCount = 0; this.$id = nextUid(); this.$$ChildScope = null; } ChildScope.prototype = parent; return ChildScope; } this.$get = ['$exceptionHandler', '$parse', '$browser', function($exceptionHandler, $parse, $browser) { function destroyChildScope($event) { $event.currentScope.$$destroyed = true; } function cleanUpScope($scope) { if (msie === 9) { // There is a memory leak in IE9 if all child scopes are not disconnected // completely when a scope is destroyed. So this code will recurse up through // all this scopes children // // See issue https://github.com/angular/angular.js/issues/10706 $scope.$$childHead && cleanUpScope($scope.$$childHead); $scope.$$nextSibling && cleanUpScope($scope.$$nextSibling); } // The code below works around IE9 and V8's memory leaks // // See: // - https://code.google.com/p/v8/issues/detail?id=2073#c26 // - https://github.com/angular/angular.js/issues/6794#issuecomment-38648909 // - https://github.com/angular/angular.js/issues/1313#issuecomment-10378451 $scope.$parent = $scope.$$nextSibling = $scope.$$prevSibling = $scope.$$childHead = $scope.$$childTail = $scope.$root = $scope.$$watchers = null; } /** * @ngdoc type * @name $rootScope.Scope * * @description * A root scope can be retrieved using the {@link ng.$rootScope $rootScope} key from the * {@link auto.$injector $injector}. Child scopes are created using the * {@link ng.$rootScope.Scope#$new $new()} method. (Most scopes are created automatically when * compiled HTML template is executed.) See also the {@link guide/scope Scopes guide} for * an in-depth introduction and usage examples. * * * # Inheritance * A scope can inherit from a parent scope, as in this example: * ```js var parent = $rootScope; var child = parent.$new(); parent.salutation = "Hello"; expect(child.salutation).toEqual('Hello'); child.salutation = "Welcome"; expect(child.salutation).toEqual('Welcome'); expect(parent.salutation).toEqual('Hello'); * ``` * * When interacting with `Scope` in tests, additional helper methods are available on the * instances of `Scope` type. See {@link ngMock.$rootScope.Scope ngMock Scope} for additional * details. * * * @param {Object.=} providers Map of service factory which need to be * provided for the current scope. Defaults to {@link ng}. * @param {Object.=} instanceCache Provides pre-instantiated services which should * append/override services provided by `providers`. This is handy * when unit-testing and having the need to override a default * service. * @returns {Object} Newly created scope. * */ function Scope() { this.$id = nextUid(); this.$$phase = this.$parent = this.$$watchers = this.$$nextSibling = this.$$prevSibling = this.$$childHead = this.$$childTail = null; this.$root = this; this.$$destroyed = false; this.$$listeners = {}; this.$$listenerCount = {}; this.$$watchersCount = 0; this.$$isolateBindings = null; } /** * @ngdoc property * @name $rootScope.Scope#$id * * @description * Unique scope ID (monotonically increasing) useful for debugging. */ /** * @ngdoc property * @name $rootScope.Scope#$parent * * @description * Reference to the parent scope. */ /** * @ngdoc property * @name $rootScope.Scope#$root * * @description * Reference to the root scope. */ Scope.prototype = { constructor: Scope, /** * @ngdoc method * @name $rootScope.Scope#$new * @kind function * * @description * Creates a new child {@link ng.$rootScope.Scope scope}. * * The parent scope will propagate the {@link ng.$rootScope.Scope#$digest $digest()} event. * The scope can be removed from the scope hierarchy using {@link ng.$rootScope.Scope#$destroy $destroy()}. * * {@link ng.$rootScope.Scope#$destroy $destroy()} must be called on a scope when it is * desired for the scope and its child scopes to be permanently detached from the parent and * thus stop participating in model change detection and listener notification by invoking. * * @param {boolean} isolate If true, then the scope does not prototypically inherit from the * parent scope. The scope is isolated, as it can not see parent scope properties. * When creating widgets, it is useful for the widget to not accidentally read parent * state. * * @param {Scope} [parent=this] The {@link ng.$rootScope.Scope `Scope`} that will be the `$parent` * of the newly created scope. Defaults to `this` scope if not provided. * This is used when creating a transclude scope to correctly place it * in the scope hierarchy while maintaining the correct prototypical * inheritance. * * @returns {Object} The newly created child scope. * */ $new: function(isolate, parent) { var child; parent = parent || this; if (isolate) { child = new Scope(); child.$root = this.$root; } else { // Only create a child scope class if somebody asks for one, // but cache it to allow the VM to optimize lookups. if (!this.$$ChildScope) { this.$$ChildScope = createChildScopeClass(this); } child = new this.$$ChildScope(); } child.$parent = parent; child.$$prevSibling = parent.$$childTail; if (parent.$$childHead) { parent.$$childTail.$$nextSibling = child; parent.$$childTail = child; } else { parent.$$childHead = parent.$$childTail = child; } // When the new scope is not isolated or we inherit from `this`, and // the parent scope is destroyed, the property `$$destroyed` is inherited // prototypically. In all other cases, this property needs to be set // when the parent scope is destroyed. // The listener needs to be added after the parent is set if (isolate || parent != this) child.$on('$destroy', destroyChildScope); return child; }, /** * @ngdoc method * @name $rootScope.Scope#$watch * @kind function * * @description * Registers a `listener` callback to be executed whenever the `watchExpression` changes. * * - The `watchExpression` is called on every call to {@link ng.$rootScope.Scope#$digest * $digest()} and should return the value that will be watched. (`watchExpression` should not change * its value when executed multiple times with the same input because it may be executed multiple * times by {@link ng.$rootScope.Scope#$digest $digest()}. That is, `watchExpression` should be * [idempotent](http://en.wikipedia.org/wiki/Idempotence). * - The `listener` is called only when the value from the current `watchExpression` and the * previous call to `watchExpression` are not equal (with the exception of the initial run, * see below). Inequality is determined according to reference inequality, * [strict comparison](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Comparison_Operators) * via the `!==` Javascript operator, unless `objectEquality == true` * (see next point) * - When `objectEquality == true`, inequality of the `watchExpression` is determined * according to the {@link angular.equals} function. To save the value of the object for * later comparison, the {@link angular.copy} function is used. This therefore means that * watching complex objects will have adverse memory and performance implications. * - The watch `listener` may change the model, which may trigger other `listener`s to fire. * This is achieved by rerunning the watchers until no changes are detected. The rerun * iteration limit is 10 to prevent an infinite loop deadlock. * * * If you want to be notified whenever {@link ng.$rootScope.Scope#$digest $digest} is called, * you can register a `watchExpression` function with no `listener`. (Be prepared for * multiple calls to your `watchExpression` because it will execute multiple times in a * single {@link ng.$rootScope.Scope#$digest $digest} cycle if a change is detected.) * * After a watcher is registered with the scope, the `listener` fn is called asynchronously * (via {@link ng.$rootScope.Scope#$evalAsync $evalAsync}) to initialize the * watcher. In rare cases, this is undesirable because the listener is called when the result * of `watchExpression` didn't change. To detect this scenario within the `listener` fn, you * can compare the `newVal` and `oldVal`. If these two values are identical (`===`) then the * listener was called due to initialization. * * * * # Example * ```js // let's assume that scope was dependency injected as the $rootScope var scope = $rootScope; scope.name = 'misko'; scope.counter = 0; expect(scope.counter).toEqual(0); scope.$watch('name', function(newValue, oldValue) { scope.counter = scope.counter + 1; }); expect(scope.counter).toEqual(0); scope.$digest(); // the listener is always called during the first $digest loop after it was registered expect(scope.counter).toEqual(1); scope.$digest(); // but now it will not be called unless the value changes expect(scope.counter).toEqual(1); scope.name = 'adam'; scope.$digest(); expect(scope.counter).toEqual(2); // Using a function as a watchExpression var food; scope.foodCounter = 0; expect(scope.foodCounter).toEqual(0); scope.$watch( // This function returns the value being watched. It is called for each turn of the $digest loop function() { return food; }, // This is the change listener, called when the value returned from the above function changes function(newValue, oldValue) { if ( newValue !== oldValue ) { // Only increment the counter if the value changed scope.foodCounter = scope.foodCounter + 1; } } ); // No digest has been run so the counter will be zero expect(scope.foodCounter).toEqual(0); // Run the digest but since food has not changed count will still be zero scope.$digest(); expect(scope.foodCounter).toEqual(0); // Update food and run digest. Now the counter will increment food = 'cheeseburger'; scope.$digest(); expect(scope.foodCounter).toEqual(1); * ``` * * * * @param {(function()|string)} watchExpression Expression that is evaluated on each * {@link ng.$rootScope.Scope#$digest $digest} cycle. A change in the return value triggers * a call to the `listener`. * * - `string`: Evaluated as {@link guide/expression expression} * - `function(scope)`: called with current `scope` as a parameter. * @param {function(newVal, oldVal, scope)} listener Callback called whenever the value * of `watchExpression` changes. * * - `newVal` contains the current value of the `watchExpression` * - `oldVal` contains the previous value of the `watchExpression` * - `scope` refers to the current scope * @param {boolean=} [objectEquality=false] Compare for object equality using {@link angular.equals} instead of * comparing for reference equality. * @returns {function()} Returns a deregistration function for this listener. */ $watch: function(watchExp, listener, objectEquality, prettyPrintExpression) { var get = $parse(watchExp); if (get.$$watchDelegate) { return get.$$watchDelegate(this, listener, objectEquality, get, watchExp); } var scope = this, array = scope.$$watchers, watcher = { fn: listener, last: initWatchVal, get: get, exp: prettyPrintExpression || watchExp, eq: !!objectEquality }; lastDirtyWatch = null; if (!isFunction(listener)) { watcher.fn = noop; } if (!array) { array = scope.$$watchers = []; } // we use unshift since we use a while loop in $digest for speed. // the while loop reads in reverse order. array.unshift(watcher); incrementWatchersCount(this, 1); return function deregisterWatch() { if (arrayRemove(array, watcher) >= 0) { incrementWatchersCount(scope, -1); } lastDirtyWatch = null; }; }, /** * @ngdoc method * @name $rootScope.Scope#$watchGroup * @kind function * * @description * A variant of {@link ng.$rootScope.Scope#$watch $watch()} where it watches an array of `watchExpressions`. * If any one expression in the collection changes the `listener` is executed. * * - The items in the `watchExpressions` array are observed via standard $watch operation and are examined on every * call to $digest() to see if any items changes. * - The `listener` is called whenever any expression in the `watchExpressions` array changes. * * @param {Array.} watchExpressions Array of expressions that will be individually * watched using {@link ng.$rootScope.Scope#$watch $watch()} * * @param {function(newValues, oldValues, scope)} listener Callback called whenever the return value of any * expression in `watchExpressions` changes * The `newValues` array contains the current values of the `watchExpressions`, with the indexes matching * those of `watchExpression` * and the `oldValues` array contains the previous values of the `watchExpressions`, with the indexes matching * those of `watchExpression` * The `scope` refers to the current scope. * @returns {function()} Returns a de-registration function for all listeners. */ $watchGroup: function(watchExpressions, listener) { var oldValues = new Array(watchExpressions.length); var newValues = new Array(watchExpressions.length); var deregisterFns = []; var self = this; var changeReactionScheduled = false; var firstRun = true; if (!watchExpressions.length) { // No expressions means we call the listener ASAP var shouldCall = true; self.$evalAsync(function() { if (shouldCall) listener(newValues, newValues, self); }); return function deregisterWatchGroup() { shouldCall = false; }; } if (watchExpressions.length === 1) { // Special case size of one return this.$watch(watchExpressions[0], function watchGroupAction(value, oldValue, scope) { newValues[0] = value; oldValues[0] = oldValue; listener(newValues, (value === oldValue) ? newValues : oldValues, scope); }); } forEach(watchExpressions, function(expr, i) { var unwatchFn = self.$watch(expr, function watchGroupSubAction(value, oldValue) { newValues[i] = value; oldValues[i] = oldValue; if (!changeReactionScheduled) { changeReactionScheduled = true; self.$evalAsync(watchGroupAction); } }); deregisterFns.push(unwatchFn); }); function watchGroupAction() { changeReactionScheduled = false; if (firstRun) { firstRun = false; listener(newValues, newValues, self); } else { listener(newValues, oldValues, self); } } return function deregisterWatchGroup() { while (deregisterFns.length) { deregisterFns.shift()(); } }; }, /** * @ngdoc method * @name $rootScope.Scope#$watchCollection * @kind function * * @description * Shallow watches the properties of an object and fires whenever any of the properties change * (for arrays, this implies watching the array items; for object maps, this implies watching * the properties). If a change is detected, the `listener` callback is fired. * * - The `obj` collection is observed via standard $watch operation and is examined on every * call to $digest() to see if any items have been added, removed, or moved. * - The `listener` is called whenever anything within the `obj` has changed. Examples include * adding, removing, and moving items belonging to an object or array. * * * # Example * ```js $scope.names = ['igor', 'matias', 'misko', 'james']; $scope.dataCount = 4; $scope.$watchCollection('names', function(newNames, oldNames) { $scope.dataCount = newNames.length; }); expect($scope.dataCount).toEqual(4); $scope.$digest(); //still at 4 ... no changes expect($scope.dataCount).toEqual(4); $scope.names.pop(); $scope.$digest(); //now there's been a change expect($scope.dataCount).toEqual(3); * ``` * * * @param {string|function(scope)} obj Evaluated as {@link guide/expression expression}. The * expression value should evaluate to an object or an array which is observed on each * {@link ng.$rootScope.Scope#$digest $digest} cycle. Any shallow change within the * collection will trigger a call to the `listener`. * * @param {function(newCollection, oldCollection, scope)} listener a callback function called * when a change is detected. * - The `newCollection` object is the newly modified data obtained from the `obj` expression * - The `oldCollection` object is a copy of the former collection data. * Due to performance considerations, the`oldCollection` value is computed only if the * `listener` function declares two or more arguments. * - The `scope` argument refers to the current scope. * * @returns {function()} Returns a de-registration function for this listener. When the * de-registration function is executed, the internal watch operation is terminated. */ $watchCollection: function(obj, listener) { $watchCollectionInterceptor.$stateful = true; var self = this; // the current value, updated on each dirty-check run var newValue; // a shallow copy of the newValue from the last dirty-check run, // updated to match newValue during dirty-check run var oldValue; // a shallow copy of the newValue from when the last change happened var veryOldValue; // only track veryOldValue if the listener is asking for it var trackVeryOldValue = (listener.length > 1); var changeDetected = 0; var changeDetector = $parse(obj, $watchCollectionInterceptor); var internalArray = []; var internalObject = {}; var initRun = true; var oldLength = 0; function $watchCollectionInterceptor(_value) { newValue = _value; var newLength, key, bothNaN, newItem, oldItem; // If the new value is undefined, then return undefined as the watch may be a one-time watch if (isUndefined(newValue)) return; if (!isObject(newValue)) { // if primitive if (oldValue !== newValue) { oldValue = newValue; changeDetected++; } } else if (isArrayLike(newValue)) { if (oldValue !== internalArray) { // we are transitioning from something which was not an array into array. oldValue = internalArray; oldLength = oldValue.length = 0; changeDetected++; } newLength = newValue.length; if (oldLength !== newLength) { // if lengths do not match we need to trigger change notification changeDetected++; oldValue.length = oldLength = newLength; } // copy the items to oldValue and look for changes. for (var i = 0; i < newLength; i++) { oldItem = oldValue[i]; newItem = newValue[i]; bothNaN = (oldItem !== oldItem) && (newItem !== newItem); if (!bothNaN && (oldItem !== newItem)) { changeDetected++; oldValue[i] = newItem; } } } else { if (oldValue !== internalObject) { // we are transitioning from something which was not an object into object. oldValue = internalObject = {}; oldLength = 0; changeDetected++; } // copy the items to oldValue and look for changes. newLength = 0; for (key in newValue) { if (hasOwnProperty.call(newValue, key)) { newLength++; newItem = newValue[key]; oldItem = oldValue[key]; if (key in oldValue) { bothNaN = (oldItem !== oldItem) && (newItem !== newItem); if (!bothNaN && (oldItem !== newItem)) { changeDetected++; oldValue[key] = newItem; } } else { oldLength++; oldValue[key] = newItem; changeDetected++; } } } if (oldLength > newLength) { // we used to have more keys, need to find them and destroy them. changeDetected++; for (key in oldValue) { if (!hasOwnProperty.call(newValue, key)) { oldLength--; delete oldValue[key]; } } } } return changeDetected; } function $watchCollectionAction() { if (initRun) { initRun = false; listener(newValue, newValue, self); } else { listener(newValue, veryOldValue, self); } // make a copy for the next time a collection is changed if (trackVeryOldValue) { if (!isObject(newValue)) { //primitive veryOldValue = newValue; } else if (isArrayLike(newValue)) { veryOldValue = new Array(newValue.length); for (var i = 0; i < newValue.length; i++) { veryOldValue[i] = newValue[i]; } } else { // if object veryOldValue = {}; for (var key in newValue) { if (hasOwnProperty.call(newValue, key)) { veryOldValue[key] = newValue[key]; } } } } } return this.$watch(changeDetector, $watchCollectionAction); }, /** * @ngdoc method * @name $rootScope.Scope#$digest * @kind function * * @description * Processes all of the {@link ng.$rootScope.Scope#$watch watchers} of the current scope and * its children. Because a {@link ng.$rootScope.Scope#$watch watcher}'s listener can change * the model, the `$digest()` keeps calling the {@link ng.$rootScope.Scope#$watch watchers} * until no more listeners are firing. This means that it is possible to get into an infinite * loop. This function will throw `'Maximum iteration limit exceeded.'` if the number of * iterations exceeds 10. * * Usually, you don't call `$digest()` directly in * {@link ng.directive:ngController controllers} or in * {@link ng.$compileProvider#directive directives}. * Instead, you should call {@link ng.$rootScope.Scope#$apply $apply()} (typically from within * a {@link ng.$compileProvider#directive directive}), which will force a `$digest()`. * * If you want to be notified whenever `$digest()` is called, * you can register a `watchExpression` function with * {@link ng.$rootScope.Scope#$watch $watch()} with no `listener`. * * In unit tests, you may need to call `$digest()` to simulate the scope life cycle. * * # Example * ```js var scope = ...; scope.name = 'misko'; scope.counter = 0; expect(scope.counter).toEqual(0); scope.$watch('name', function(newValue, oldValue) { scope.counter = scope.counter + 1; }); expect(scope.counter).toEqual(0); scope.$digest(); // the listener is always called during the first $digest loop after it was registered expect(scope.counter).toEqual(1); scope.$digest(); // but now it will not be called unless the value changes expect(scope.counter).toEqual(1); scope.name = 'adam'; scope.$digest(); expect(scope.counter).toEqual(2); * ``` * */ $digest: function() { var watch, value, last, fn, get, watchers, length, dirty, ttl = TTL, next, current, target = this, watchLog = [], logIdx, asyncTask; beginPhase('$digest'); // Check for changes to browser url that happened in sync before the call to $digest $browser.$$checkUrlChange(); if (this === $rootScope && applyAsyncId !== null) { // If this is the root scope, and $applyAsync has scheduled a deferred $apply(), then // cancel the scheduled $apply and flush the queue of expressions to be evaluated. $browser.defer.cancel(applyAsyncId); flushApplyAsync(); } lastDirtyWatch = null; do { // "while dirty" loop dirty = false; current = target; // It's safe for asyncQueuePosition to be a local variable here because this loop can't // be reentered recursively. Calling $digest from a function passed to $applyAsync would // lead to a '$digest already in progress' error. for (var asyncQueuePosition = 0; asyncQueuePosition < asyncQueue.length; asyncQueuePosition++) { try { asyncTask = asyncQueue[asyncQueuePosition]; asyncTask.scope.$eval(asyncTask.expression, asyncTask.locals); } catch (e) { $exceptionHandler(e); } lastDirtyWatch = null; } asyncQueue.length = 0; traverseScopesLoop: do { // "traverse the scopes" loop if ((watchers = current.$$watchers)) { // process our watches length = watchers.length; while (length--) { try { watch = watchers[length]; // Most common watches are on primitives, in which case we can short // circuit it with === operator, only when === fails do we use .equals if (watch) { get = watch.get; if ((value = get(current)) !== (last = watch.last) && !(watch.eq ? equals(value, last) : (typeof value === 'number' && typeof last === 'number' && isNaN(value) && isNaN(last)))) { dirty = true; lastDirtyWatch = watch; watch.last = watch.eq ? copy(value, null) : value; fn = watch.fn; fn(value, ((last === initWatchVal) ? value : last), current); if (ttl < 5) { logIdx = 4 - ttl; if (!watchLog[logIdx]) watchLog[logIdx] = []; watchLog[logIdx].push({ msg: isFunction(watch.exp) ? 'fn: ' + (watch.exp.name || watch.exp.toString()) : watch.exp, newVal: value, oldVal: last }); } } else if (watch === lastDirtyWatch) { // If the most recently dirty watcher is now clean, short circuit since the remaining watchers // have already been tested. dirty = false; break traverseScopesLoop; } } } catch (e) { $exceptionHandler(e); } } } // Insanity Warning: scope depth-first traversal // yes, this code is a bit crazy, but it works and we have tests to prove it! // this piece should be kept in sync with the traversal in $broadcast if (!(next = ((current.$$watchersCount && current.$$childHead) || (current !== target && current.$$nextSibling)))) { while (current !== target && !(next = current.$$nextSibling)) { current = current.$parent; } } } while ((current = next)); // `break traverseScopesLoop;` takes us to here if ((dirty || asyncQueue.length) && !(ttl--)) { clearPhase(); throw $rootScopeMinErr('infdig', '{0} $digest() iterations reached. Aborting!\n' + 'Watchers fired in the last 5 iterations: {1}', TTL, watchLog); } } while (dirty || asyncQueue.length); clearPhase(); // postDigestQueuePosition isn't local here because this loop can be reentered recursively. while (postDigestQueuePosition < postDigestQueue.length) { try { postDigestQueue[postDigestQueuePosition++](); } catch (e) { $exceptionHandler(e); } } postDigestQueue.length = postDigestQueuePosition = 0; }, /** * @ngdoc event * @name $rootScope.Scope#$destroy * @eventType broadcast on scope being destroyed * * @description * Broadcasted when a scope and its children are being destroyed. * * Note that, in AngularJS, there is also a `$destroy` jQuery event, which can be used to * clean up DOM bindings before an element is removed from the DOM. */ /** * @ngdoc method * @name $rootScope.Scope#$destroy * @kind function * * @description * Removes the current scope (and all of its children) from the parent scope. Removal implies * that calls to {@link ng.$rootScope.Scope#$digest $digest()} will no longer * propagate to the current scope and its children. Removal also implies that the current * scope is eligible for garbage collection. * * The `$destroy()` is usually used by directives such as * {@link ng.directive:ngRepeat ngRepeat} for managing the * unrolling of the loop. * * Just before a scope is destroyed, a `$destroy` event is broadcasted on this scope. * Application code can register a `$destroy` event handler that will give it a chance to * perform any necessary cleanup. * * Note that, in AngularJS, there is also a `$destroy` jQuery event, which can be used to * clean up DOM bindings before an element is removed from the DOM. */ $destroy: function() { // We can't destroy a scope that has been already destroyed. if (this.$$destroyed) return; var parent = this.$parent; this.$broadcast('$destroy'); this.$$destroyed = true; if (this === $rootScope) { //Remove handlers attached to window when $rootScope is removed $browser.$$applicationDestroyed(); } incrementWatchersCount(this, -this.$$watchersCount); for (var eventName in this.$$listenerCount) { decrementListenerCount(this, this.$$listenerCount[eventName], eventName); } // sever all the references to parent scopes (after this cleanup, the current scope should // not be retained by any of our references and should be eligible for garbage collection) if (parent && parent.$$childHead == this) parent.$$childHead = this.$$nextSibling; if (parent && parent.$$childTail == this) parent.$$childTail = this.$$prevSibling; if (this.$$prevSibling) this.$$prevSibling.$$nextSibling = this.$$nextSibling; if (this.$$nextSibling) this.$$nextSibling.$$prevSibling = this.$$prevSibling; // Disable listeners, watchers and apply/digest methods this.$destroy = this.$digest = this.$apply = this.$evalAsync = this.$applyAsync = noop; this.$on = this.$watch = this.$watchGroup = function() { return noop; }; this.$$listeners = {}; // Disconnect the next sibling to prevent `cleanUpScope` destroying those too this.$$nextSibling = null; cleanUpScope(this); }, /** * @ngdoc method * @name $rootScope.Scope#$eval * @kind function * * @description * Executes the `expression` on the current scope and returns the result. Any exceptions in * the expression are propagated (uncaught). This is useful when evaluating Angular * expressions. * * # Example * ```js var scope = ng.$rootScope.Scope(); scope.a = 1; scope.b = 2; expect(scope.$eval('a+b')).toEqual(3); expect(scope.$eval(function(scope){ return scope.a + scope.b; })).toEqual(3); * ``` * * @param {(string|function())=} expression An angular expression to be executed. * * - `string`: execute using the rules as defined in {@link guide/expression expression}. * - `function(scope)`: execute the function with the current `scope` parameter. * * @param {(object)=} locals Local variables object, useful for overriding values in scope. * @returns {*} The result of evaluating the expression. */ $eval: function(expr, locals) { return $parse(expr)(this, locals); }, /** * @ngdoc method * @name $rootScope.Scope#$evalAsync * @kind function * * @description * Executes the expression on the current scope at a later point in time. * * The `$evalAsync` makes no guarantees as to when the `expression` will be executed, only * that: * * - it will execute after the function that scheduled the evaluation (preferably before DOM * rendering). * - at least one {@link ng.$rootScope.Scope#$digest $digest cycle} will be performed after * `expression` execution. * * Any exceptions from the execution of the expression are forwarded to the * {@link ng.$exceptionHandler $exceptionHandler} service. * * __Note:__ if this function is called outside of a `$digest` cycle, a new `$digest` cycle * will be scheduled. However, it is encouraged to always call code that changes the model * from within an `$apply` call. That includes code evaluated via `$evalAsync`. * * @param {(string|function())=} expression An angular expression to be executed. * * - `string`: execute using the rules as defined in {@link guide/expression expression}. * - `function(scope)`: execute the function with the current `scope` parameter. * * @param {(object)=} locals Local variables object, useful for overriding values in scope. */ $evalAsync: function(expr, locals) { // if we are outside of an $digest loop and this is the first time we are scheduling async // task also schedule async auto-flush if (!$rootScope.$$phase && !asyncQueue.length) { $browser.defer(function() { if (asyncQueue.length) { $rootScope.$digest(); } }); } asyncQueue.push({scope: this, expression: $parse(expr), locals: locals}); }, $$postDigest: function(fn) { postDigestQueue.push(fn); }, /** * @ngdoc method * @name $rootScope.Scope#$apply * @kind function * * @description * `$apply()` is used to execute an expression in angular from outside of the angular * framework. (For example from browser DOM events, setTimeout, XHR or third party libraries). * Because we are calling into the angular framework we need to perform proper scope life * cycle of {@link ng.$exceptionHandler exception handling}, * {@link ng.$rootScope.Scope#$digest executing watches}. * * ## Life cycle * * # Pseudo-Code of `$apply()` * ```js function $apply(expr) { try { return $eval(expr); } catch (e) { $exceptionHandler(e); } finally { $root.$digest(); } } * ``` * * * Scope's `$apply()` method transitions through the following stages: * * 1. The {@link guide/expression expression} is executed using the * {@link ng.$rootScope.Scope#$eval $eval()} method. * 2. Any exceptions from the execution of the expression are forwarded to the * {@link ng.$exceptionHandler $exceptionHandler} service. * 3. The {@link ng.$rootScope.Scope#$watch watch} listeners are fired immediately after the * expression was executed using the {@link ng.$rootScope.Scope#$digest $digest()} method. * * * @param {(string|function())=} exp An angular expression to be executed. * * - `string`: execute using the rules as defined in {@link guide/expression expression}. * - `function(scope)`: execute the function with current `scope` parameter. * * @returns {*} The result of evaluating the expression. */ $apply: function(expr) { try { beginPhase('$apply'); try { return this.$eval(expr); } finally { clearPhase(); } } catch (e) { $exceptionHandler(e); } finally { try { $rootScope.$digest(); } catch (e) { $exceptionHandler(e); throw e; } } }, /** * @ngdoc method * @name $rootScope.Scope#$applyAsync * @kind function * * @description * Schedule the invocation of $apply to occur at a later time. The actual time difference * varies across browsers, but is typically around ~10 milliseconds. * * This can be used to queue up multiple expressions which need to be evaluated in the same * digest. * * @param {(string|function())=} exp An angular expression to be executed. * * - `string`: execute using the rules as defined in {@link guide/expression expression}. * - `function(scope)`: execute the function with current `scope` parameter. */ $applyAsync: function(expr) { var scope = this; expr && applyAsyncQueue.push($applyAsyncExpression); expr = $parse(expr); scheduleApplyAsync(); function $applyAsyncExpression() { scope.$eval(expr); } }, /** * @ngdoc method * @name $rootScope.Scope#$on * @kind function * * @description * Listens on events of a given type. See {@link ng.$rootScope.Scope#$emit $emit} for * discussion of event life cycle. * * The event listener function format is: `function(event, args...)`. The `event` object * passed into the listener has the following attributes: * * - `targetScope` - `{Scope}`: the scope on which the event was `$emit`-ed or * `$broadcast`-ed. * - `currentScope` - `{Scope}`: the scope that is currently handling the event. Once the * event propagates through the scope hierarchy, this property is set to null. * - `name` - `{string}`: name of the event. * - `stopPropagation` - `{function=}`: calling `stopPropagation` function will cancel * further event propagation (available only for events that were `$emit`-ed). * - `preventDefault` - `{function}`: calling `preventDefault` sets `defaultPrevented` flag * to true. * - `defaultPrevented` - `{boolean}`: true if `preventDefault` was called. * * @param {string} name Event name to listen on. * @param {function(event, ...args)} listener Function to call when the event is emitted. * @returns {function()} Returns a deregistration function for this listener. */ $on: function(name, listener) { var namedListeners = this.$$listeners[name]; if (!namedListeners) { this.$$listeners[name] = namedListeners = []; } namedListeners.push(listener); var current = this; do { if (!current.$$listenerCount[name]) { current.$$listenerCount[name] = 0; } current.$$listenerCount[name]++; } while ((current = current.$parent)); var self = this; return function() { var indexOfListener = namedListeners.indexOf(listener); if (indexOfListener !== -1) { namedListeners[indexOfListener] = null; decrementListenerCount(self, 1, name); } }; }, /** * @ngdoc method * @name $rootScope.Scope#$emit * @kind function * * @description * Dispatches an event `name` upwards through the scope hierarchy notifying the * registered {@link ng.$rootScope.Scope#$on} listeners. * * The event life cycle starts at the scope on which `$emit` was called. All * {@link ng.$rootScope.Scope#$on listeners} listening for `name` event on this scope get * notified. Afterwards, the event traverses upwards toward the root scope and calls all * registered listeners along the way. The event will stop propagating if one of the listeners * cancels it. * * Any exception emitted from the {@link ng.$rootScope.Scope#$on listeners} will be passed * onto the {@link ng.$exceptionHandler $exceptionHandler} service. * * @param {string} name Event name to emit. * @param {...*} args Optional one or more arguments which will be passed onto the event listeners. * @return {Object} Event object (see {@link ng.$rootScope.Scope#$on}). */ $emit: function(name, args) { var empty = [], namedListeners, scope = this, stopPropagation = false, event = { name: name, targetScope: scope, stopPropagation: function() {stopPropagation = true;}, preventDefault: function() { event.defaultPrevented = true; }, defaultPrevented: false }, listenerArgs = concat([event], arguments, 1), i, length; do { namedListeners = scope.$$listeners[name] || empty; event.currentScope = scope; for (i = 0, length = namedListeners.length; i < length; i++) { // if listeners were deregistered, defragment the array if (!namedListeners[i]) { namedListeners.splice(i, 1); i--; length--; continue; } try { //allow all listeners attached to the current scope to run namedListeners[i].apply(null, listenerArgs); } catch (e) { $exceptionHandler(e); } } //if any listener on the current scope stops propagation, prevent bubbling if (stopPropagation) { event.currentScope = null; return event; } //traverse upwards scope = scope.$parent; } while (scope); event.currentScope = null; return event; }, /** * @ngdoc method * @name $rootScope.Scope#$broadcast * @kind function * * @description * Dispatches an event `name` downwards to all child scopes (and their children) notifying the * registered {@link ng.$rootScope.Scope#$on} listeners. * * The event life cycle starts at the scope on which `$broadcast` was called. All * {@link ng.$rootScope.Scope#$on listeners} listening for `name` event on this scope get * notified. Afterwards, the event propagates to all direct and indirect scopes of the current * scope and calls all registered listeners along the way. The event cannot be canceled. * * Any exception emitted from the {@link ng.$rootScope.Scope#$on listeners} will be passed * onto the {@link ng.$exceptionHandler $exceptionHandler} service. * * @param {string} name Event name to broadcast. * @param {...*} args Optional one or more arguments which will be passed onto the event listeners. * @return {Object} Event object, see {@link ng.$rootScope.Scope#$on} */ $broadcast: function(name, args) { var target = this, current = target, next = target, event = { name: name, targetScope: target, preventDefault: function() { event.defaultPrevented = true; }, defaultPrevented: false }; if (!target.$$listenerCount[name]) return event; var listenerArgs = concat([event], arguments, 1), listeners, i, length; //down while you can, then up and next sibling or up and next sibling until back at root while ((current = next)) { event.currentScope = current; listeners = current.$$listeners[name] || []; for (i = 0, length = listeners.length; i < length; i++) { // if listeners were deregistered, defragment the array if (!listeners[i]) { listeners.splice(i, 1); i--; length--; continue; } try { listeners[i].apply(null, listenerArgs); } catch (e) { $exceptionHandler(e); } } // Insanity Warning: scope depth-first traversal // yes, this code is a bit crazy, but it works and we have tests to prove it! // this piece should be kept in sync with the traversal in $digest // (though it differs due to having the extra check for $$listenerCount) if (!(next = ((current.$$listenerCount[name] && current.$$childHead) || (current !== target && current.$$nextSibling)))) { while (current !== target && !(next = current.$$nextSibling)) { current = current.$parent; } } } event.currentScope = null; return event; } }; var $rootScope = new Scope(); //The internal queues. Expose them on the $rootScope for debugging/testing purposes. var asyncQueue = $rootScope.$$asyncQueue = []; var postDigestQueue = $rootScope.$$postDigestQueue = []; var applyAsyncQueue = $rootScope.$$applyAsyncQueue = []; var postDigestQueuePosition = 0; return $rootScope; function beginPhase(phase) { if ($rootScope.$$phase) { throw $rootScopeMinErr('inprog', '{0} already in progress', $rootScope.$$phase); } $rootScope.$$phase = phase; } function clearPhase() { $rootScope.$$phase = null; } function incrementWatchersCount(current, count) { do { current.$$watchersCount += count; } while ((current = current.$parent)); } function decrementListenerCount(current, count, name) { do { current.$$listenerCount[name] -= count; if (current.$$listenerCount[name] === 0) { delete current.$$listenerCount[name]; } } while ((current = current.$parent)); } /** * function used as an initial value for watchers. * because it's unique we can easily tell it apart from other values */ function initWatchVal() {} function flushApplyAsync() { while (applyAsyncQueue.length) { try { applyAsyncQueue.shift()(); } catch (e) { $exceptionHandler(e); } } applyAsyncId = null; } function scheduleApplyAsync() { if (applyAsyncId === null) { applyAsyncId = $browser.defer(function() { $rootScope.$apply(flushApplyAsync); }); } } }]; } /** * @ngdoc service * @name $rootElement * * @description * The root element of Angular application. This is either the element where {@link * ng.directive:ngApp ngApp} was declared or the element passed into * {@link angular.bootstrap}. The element represents the root element of application. It is also the * location where the application's {@link auto.$injector $injector} service gets * published, and can be retrieved using `$rootElement.injector()`. */ // the implementation is in angular.bootstrap /** * @description * Private service to sanitize uris for links and images. Used by $compile and $sanitize. */ function $$SanitizeUriProvider() { var aHrefSanitizationWhitelist = /^\s*(https?|ftp|mailto|tel|file):/, imgSrcSanitizationWhitelist = /^\s*((https?|ftp|file|blob):|data:image\/)/; /** * @description * Retrieves or overrides the default regular expression that is used for whitelisting of safe * urls during a[href] sanitization. * * The sanitization is a security measure aimed at prevent XSS attacks via html links. * * Any url about to be assigned to a[href] via data-binding is first normalized and turned into * an absolute url. Afterwards, the url is matched against the `aHrefSanitizationWhitelist` * regular expression. If a match is found, the original url is written into the dom. Otherwise, * the absolute url is prefixed with `'unsafe:'` string and only then is it written into the DOM. * * @param {RegExp=} regexp New regexp to whitelist urls with. * @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for * chaining otherwise. */ this.aHrefSanitizationWhitelist = function(regexp) { if (isDefined(regexp)) { aHrefSanitizationWhitelist = regexp; return this; } return aHrefSanitizationWhitelist; }; /** * @description * Retrieves or overrides the default regular expression that is used for whitelisting of safe * urls during img[src] sanitization. * * The sanitization is a security measure aimed at prevent XSS attacks via html links. * * Any url about to be assigned to img[src] via data-binding is first normalized and turned into * an absolute url. Afterwards, the url is matched against the `imgSrcSanitizationWhitelist` * regular expression. If a match is found, the original url is written into the dom. Otherwise, * the absolute url is prefixed with `'unsafe:'` string and only then is it written into the DOM. * * @param {RegExp=} regexp New regexp to whitelist urls with. * @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for * chaining otherwise. */ this.imgSrcSanitizationWhitelist = function(regexp) { if (isDefined(regexp)) { imgSrcSanitizationWhitelist = regexp; return this; } return imgSrcSanitizationWhitelist; }; this.$get = function() { return function sanitizeUri(uri, isImage) { var regex = isImage ? imgSrcSanitizationWhitelist : aHrefSanitizationWhitelist; var normalizedVal; normalizedVal = urlResolve(uri).href; if (normalizedVal !== '' && !normalizedVal.match(regex)) { return 'unsafe:' + normalizedVal; } return uri; }; }; } /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Any commits to this file should be reviewed with security in mind. * * Changes to this file can potentially create security vulnerabilities. * * An approval from 2 Core members with history of modifying * * this file is required. * * * * Does the change somehow allow for arbitrary javascript to be executed? * * Or allows for someone to change the prototype of built-in objects? * * Or gives undesired access to variables likes document or window? * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ var $sceMinErr = minErr('$sce'); var SCE_CONTEXTS = { HTML: 'html', CSS: 'css', URL: 'url', // RESOURCE_URL is a subtype of URL used in contexts where a privileged resource is sourced from a // url. (e.g. ng-include, script src, templateUrl) RESOURCE_URL: 'resourceUrl', JS: 'js' }; // Helper functions follow. function adjustMatcher(matcher) { if (matcher === 'self') { return matcher; } else if (isString(matcher)) { // Strings match exactly except for 2 wildcards - '*' and '**'. // '*' matches any character except those from the set ':/.?&'. // '**' matches any character (like .* in a RegExp). // More than 2 *'s raises an error as it's ill defined. if (matcher.indexOf('***') > -1) { throw $sceMinErr('iwcard', 'Illegal sequence *** in string matcher. String: {0}', matcher); } matcher = escapeForRegexp(matcher). replace('\\*\\*', '.*'). replace('\\*', '[^:/.?&;]*'); return new RegExp('^' + matcher + '$'); } else if (isRegExp(matcher)) { // The only other type of matcher allowed is a Regexp. // Match entire URL / disallow partial matches. // Flags are reset (i.e. no global, ignoreCase or multiline) return new RegExp('^' + matcher.source + '$'); } else { throw $sceMinErr('imatcher', 'Matchers may only be "self", string patterns or RegExp objects'); } } function adjustMatchers(matchers) { var adjustedMatchers = []; if (isDefined(matchers)) { forEach(matchers, function(matcher) { adjustedMatchers.push(adjustMatcher(matcher)); }); } return adjustedMatchers; } /** * @ngdoc service * @name $sceDelegate * @kind function * * @description * * `$sceDelegate` is a service that is used by the `$sce` service to provide {@link ng.$sce Strict * Contextual Escaping (SCE)} services to AngularJS. * * Typically, you would configure or override the {@link ng.$sceDelegate $sceDelegate} instead of * the `$sce` service to customize the way Strict Contextual Escaping works in AngularJS. This is * because, while the `$sce` provides numerous shorthand methods, etc., you really only need to * override 3 core functions (`trustAs`, `getTrusted` and `valueOf`) to replace the way things * work because `$sce` delegates to `$sceDelegate` for these operations. * * Refer {@link ng.$sceDelegateProvider $sceDelegateProvider} to configure this service. * * The default instance of `$sceDelegate` should work out of the box with little pain. While you * can override it completely to change the behavior of `$sce`, the common case would * involve configuring the {@link ng.$sceDelegateProvider $sceDelegateProvider} instead by setting * your own whitelists and blacklists for trusting URLs used for loading AngularJS resources such as * templates. Refer {@link ng.$sceDelegateProvider#resourceUrlWhitelist * $sceDelegateProvider.resourceUrlWhitelist} and {@link * ng.$sceDelegateProvider#resourceUrlBlacklist $sceDelegateProvider.resourceUrlBlacklist} */ /** * @ngdoc provider * @name $sceDelegateProvider * @description * * The `$sceDelegateProvider` provider allows developers to configure the {@link ng.$sceDelegate * $sceDelegate} service. This allows one to get/set the whitelists and blacklists used to ensure * that the URLs used for sourcing Angular templates are safe. Refer {@link * ng.$sceDelegateProvider#resourceUrlWhitelist $sceDelegateProvider.resourceUrlWhitelist} and * {@link ng.$sceDelegateProvider#resourceUrlBlacklist $sceDelegateProvider.resourceUrlBlacklist} * * For the general details about this service in Angular, read the main page for {@link ng.$sce * Strict Contextual Escaping (SCE)}. * * **Example**: Consider the following case. * * - your app is hosted at url `http://myapp.example.com/` * - but some of your templates are hosted on other domains you control such as * `http://srv01.assets.example.com/`, `http://srv02.assets.example.com/`, etc. * - and you have an open redirect at `http://myapp.example.com/clickThru?...`. * * Here is what a secure configuration for this scenario might look like: * * ``` * angular.module('myApp', []).config(function($sceDelegateProvider) { * $sceDelegateProvider.resourceUrlWhitelist([ * // Allow same origin resource loads. * 'self', * // Allow loading from our assets domain. Notice the difference between * and **. * 'http://srv*.assets.example.com/**' * ]); * * // The blacklist overrides the whitelist so the open redirect here is blocked. * $sceDelegateProvider.resourceUrlBlacklist([ * 'http://myapp.example.com/clickThru**' * ]); * }); * ``` */ function $SceDelegateProvider() { this.SCE_CONTEXTS = SCE_CONTEXTS; // Resource URLs can also be trusted by policy. var resourceUrlWhitelist = ['self'], resourceUrlBlacklist = []; /** * @ngdoc method * @name $sceDelegateProvider#resourceUrlWhitelist * @kind function * * @param {Array=} whitelist When provided, replaces the resourceUrlWhitelist with the value * provided. This must be an array or null. A snapshot of this array is used so further * changes to the array are ignored. * * Follow {@link ng.$sce#resourceUrlPatternItem this link} for a description of the items * allowed in this array. * *

* **Note:** an empty whitelist array will block all URLs! *

* * @return {Array} the currently set whitelist array. * * The **default value** when no whitelist has been explicitly set is `['self']` allowing only * same origin resource requests. * * @description * Sets/Gets the whitelist of trusted resource URLs. */ this.resourceUrlWhitelist = function(value) { if (arguments.length) { resourceUrlWhitelist = adjustMatchers(value); } return resourceUrlWhitelist; }; /** * @ngdoc method * @name $sceDelegateProvider#resourceUrlBlacklist * @kind function * * @param {Array=} blacklist When provided, replaces the resourceUrlBlacklist with the value * provided. This must be an array or null. A snapshot of this array is used so further * changes to the array are ignored. * * Follow {@link ng.$sce#resourceUrlPatternItem this link} for a description of the items * allowed in this array. * * The typical usage for the blacklist is to **block * [open redirects](http://cwe.mitre.org/data/definitions/601.html)** served by your domain as * these would otherwise be trusted but actually return content from the redirected domain. * * Finally, **the blacklist overrides the whitelist** and has the final say. * * @return {Array} the currently set blacklist array. * * The **default value** when no whitelist has been explicitly set is the empty array (i.e. there * is no blacklist.) * * @description * Sets/Gets the blacklist of trusted resource URLs. */ this.resourceUrlBlacklist = function(value) { if (arguments.length) { resourceUrlBlacklist = adjustMatchers(value); } return resourceUrlBlacklist; }; this.$get = ['$injector', function($injector) { var htmlSanitizer = function htmlSanitizer(html) { throw $sceMinErr('unsafe', 'Attempting to use an unsafe value in a safe context.'); }; if ($injector.has('$sanitize')) { htmlSanitizer = $injector.get('$sanitize'); } function matchUrl(matcher, parsedUrl) { if (matcher === 'self') { return urlIsSameOrigin(parsedUrl); } else { // definitely a regex. See adjustMatchers() return !!matcher.exec(parsedUrl.href); } } function isResourceUrlAllowedByPolicy(url) { var parsedUrl = urlResolve(url.toString()); var i, n, allowed = false; // Ensure that at least one item from the whitelist allows this url. for (i = 0, n = resourceUrlWhitelist.length; i < n; i++) { if (matchUrl(resourceUrlWhitelist[i], parsedUrl)) { allowed = true; break; } } if (allowed) { // Ensure that no item from the blacklist blocked this url. for (i = 0, n = resourceUrlBlacklist.length; i < n; i++) { if (matchUrl(resourceUrlBlacklist[i], parsedUrl)) { allowed = false; break; } } } return allowed; } function generateHolderType(Base) { var holderType = function TrustedValueHolderType(trustedValue) { this.$$unwrapTrustedValue = function() { return trustedValue; }; }; if (Base) { holderType.prototype = new Base(); } holderType.prototype.valueOf = function sceValueOf() { return this.$$unwrapTrustedValue(); }; holderType.prototype.toString = function sceToString() { return this.$$unwrapTrustedValue().toString(); }; return holderType; } var trustedValueHolderBase = generateHolderType(), byType = {}; byType[SCE_CONTEXTS.HTML] = generateHolderType(trustedValueHolderBase); byType[SCE_CONTEXTS.CSS] = generateHolderType(trustedValueHolderBase); byType[SCE_CONTEXTS.URL] = generateHolderType(trustedValueHolderBase); byType[SCE_CONTEXTS.JS] = generateHolderType(trustedValueHolderBase); byType[SCE_CONTEXTS.RESOURCE_URL] = generateHolderType(byType[SCE_CONTEXTS.URL]); /** * @ngdoc method * @name $sceDelegate#trustAs * * @description * Returns an object that is trusted by angular for use in specified strict * contextual escaping contexts (such as ng-bind-html, ng-include, any src * attribute interpolation, any dom event binding attribute interpolation * such as for onclick, etc.) that uses the provided value. * See {@link ng.$sce $sce} for enabling strict contextual escaping. * * @param {string} type The kind of context in which this value is safe for use. e.g. url, * resourceUrl, html, js and css. * @param {*} value The value that that should be considered trusted/safe. * @returns {*} A value that can be used to stand in for the provided `value` in places * where Angular expects a $sce.trustAs() return value. */ function trustAs(type, trustedValue) { var Constructor = (byType.hasOwnProperty(type) ? byType[type] : null); if (!Constructor) { throw $sceMinErr('icontext', 'Attempted to trust a value in invalid context. Context: {0}; Value: {1}', type, trustedValue); } if (trustedValue === null || isUndefined(trustedValue) || trustedValue === '') { return trustedValue; } // All the current contexts in SCE_CONTEXTS happen to be strings. In order to avoid trusting // mutable objects, we ensure here that the value passed in is actually a string. if (typeof trustedValue !== 'string') { throw $sceMinErr('itype', 'Attempted to trust a non-string value in a content requiring a string: Context: {0}', type); } return new Constructor(trustedValue); } /** * @ngdoc method * @name $sceDelegate#valueOf * * @description * If the passed parameter had been returned by a prior call to {@link ng.$sceDelegate#trustAs * `$sceDelegate.trustAs`}, returns the value that had been passed to {@link * ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}. * * If the passed parameter is not a value that had been returned by {@link * ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}, returns it as-is. * * @param {*} value The result of a prior {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs`} * call or anything else. * @returns {*} The `value` that was originally provided to {@link ng.$sceDelegate#trustAs * `$sceDelegate.trustAs`} if `value` is the result of such a call. Otherwise, returns * `value` unchanged. */ function valueOf(maybeTrusted) { if (maybeTrusted instanceof trustedValueHolderBase) { return maybeTrusted.$$unwrapTrustedValue(); } else { return maybeTrusted; } } /** * @ngdoc method * @name $sceDelegate#getTrusted * * @description * Takes the result of a {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs`} call and * returns the originally supplied value if the queried context type is a supertype of the * created type. If this condition isn't satisfied, throws an exception. * *

* Disabling auto-escaping is extremely dangerous, it usually creates a Cross Site Scripting * (XSS) vulnerability in your application. *

* * @param {string} type The kind of context in which this value is to be used. * @param {*} maybeTrusted The result of a prior {@link ng.$sceDelegate#trustAs * `$sceDelegate.trustAs`} call. * @returns {*} The value the was originally provided to {@link ng.$sceDelegate#trustAs * `$sceDelegate.trustAs`} if valid in this context. Otherwise, throws an exception. */ function getTrusted(type, maybeTrusted) { if (maybeTrusted === null || isUndefined(maybeTrusted) || maybeTrusted === '') { return maybeTrusted; } var constructor = (byType.hasOwnProperty(type) ? byType[type] : null); if (constructor && maybeTrusted instanceof constructor) { return maybeTrusted.$$unwrapTrustedValue(); } // If we get here, then we may only take one of two actions. // 1. sanitize the value for the requested type, or // 2. throw an exception. if (type === SCE_CONTEXTS.RESOURCE_URL) { if (isResourceUrlAllowedByPolicy(maybeTrusted)) { return maybeTrusted; } else { throw $sceMinErr('insecurl', 'Blocked loading resource from url not allowed by $sceDelegate policy. URL: {0}', maybeTrusted.toString()); } } else if (type === SCE_CONTEXTS.HTML) { return htmlSanitizer(maybeTrusted); } throw $sceMinErr('unsafe', 'Attempting to use an unsafe value in a safe context.'); } return { trustAs: trustAs, getTrusted: getTrusted, valueOf: valueOf }; }]; } /** * @ngdoc provider * @name $sceProvider * @description * * The $sceProvider provider allows developers to configure the {@link ng.$sce $sce} service. * - enable/disable Strict Contextual Escaping (SCE) in a module * - override the default implementation with a custom delegate * * Read more about {@link ng.$sce Strict Contextual Escaping (SCE)}. */ /* jshint maxlen: false*/ /** * @ngdoc service * @name $sce * @kind function * * @description * * `$sce` is a service that provides Strict Contextual Escaping services to AngularJS. * * # Strict Contextual Escaping * * Strict Contextual Escaping (SCE) is a mode in which AngularJS requires bindings in certain * contexts to result in a value that is marked as safe to use for that context. One example of * such a context is binding arbitrary html controlled by the user via `ng-bind-html`. We refer * to these contexts as privileged or SCE contexts. * * As of version 1.2, Angular ships with SCE enabled by default. * * Note: When enabled (the default), IE<11 in quirks mode is not supported. In this mode, IE<11 allow * one to execute arbitrary javascript by the use of the expression() syntax. Refer * to learn more about them. * You can ensure your document is in standards mode and not quirks mode by adding `` * to the top of your HTML document. * * SCE assists in writing code in a way that (a) is secure by default and (b) makes auditing for * security vulnerabilities such as XSS, clickjacking, etc. a lot easier. * * Here's an example of a binding in a privileged context: * * ``` * *

* ``` * * Notice that `ng-bind-html` is bound to `userHtml` controlled by the user. With SCE * disabled, this application allows the user to render arbitrary HTML into the DIV. * In a more realistic example, one may be rendering user comments, blog articles, etc. via * bindings. (HTML is just one example of a context where rendering user controlled input creates * security vulnerabilities.) * * For the case of HTML, you might use a library, either on the client side, or on the server side, * to sanitize unsafe HTML before binding to the value and rendering it in the document. * * How would you ensure that every place that used these types of bindings was bound to a value that * was sanitized by your library (or returned as safe for rendering by your server?) How can you * ensure that you didn't accidentally delete the line that sanitized the value, or renamed some * properties/fields and forgot to update the binding to the sanitized value? * * To be secure by default, you want to ensure that any such bindings are disallowed unless you can * determine that something explicitly says it's safe to use a value for binding in that * context. You can then audit your code (a simple grep would do) to ensure that this is only done * for those values that you can easily tell are safe - because they were received from your server, * sanitized by your library, etc. You can organize your codebase to help with this - perhaps * allowing only the files in a specific directory to do this. Ensuring that the internal API * exposed by that code doesn't markup arbitrary values as safe then becomes a more manageable task. * * In the case of AngularJS' SCE service, one uses {@link ng.$sce#trustAs $sce.trustAs} * (and shorthand methods such as {@link ng.$sce#trustAsHtml $sce.trustAsHtml}, etc.) to * obtain values that will be accepted by SCE / privileged contexts. * * * ## How does it work? * * In privileged contexts, directives and code will bind to the result of {@link ng.$sce#getTrusted * $sce.getTrusted(context, value)} rather than to the value directly. Directives use {@link * ng.$sce#parseAs $sce.parseAs} rather than `$parse` to watch attribute bindings, which performs the * {@link ng.$sce#getTrusted $sce.getTrusted} behind the scenes on non-constant literals. * * As an example, {@link ng.directive:ngBindHtml ngBindHtml} uses {@link * ng.$sce#parseAsHtml $sce.parseAsHtml(binding expression)}. Here's the actual code (slightly * simplified): * * ``` * var ngBindHtmlDirective = ['$sce', function($sce) { * return function(scope, element, attr) { * scope.$watch($sce.parseAsHtml(attr.ngBindHtml), function(value) { * element.html(value || ''); * }); * }; * }]; * ``` * * ## Impact on loading templates * * This applies both to the {@link ng.directive:ngInclude `ng-include`} directive as well as * `templateUrl`'s specified by {@link guide/directive directives}. * * By default, Angular only loads templates from the same domain and protocol as the application * document. This is done by calling {@link ng.$sce#getTrustedResourceUrl * $sce.getTrustedResourceUrl} on the template URL. To load templates from other domains and/or * protocols, you may either {@link ng.$sceDelegateProvider#resourceUrlWhitelist whitelist * them} or {@link ng.$sce#trustAsResourceUrl wrap it} into a trusted value. * * *Please note*: * The browser's * [Same Origin Policy](https://code.google.com/p/browsersec/wiki/Part2#Same-origin_policy_for_XMLHttpRequest) * and [Cross-Origin Resource Sharing (CORS)](http://www.w3.org/TR/cors/) * policy apply in addition to this and may further restrict whether the template is successfully * loaded. This means that without the right CORS policy, loading templates from a different domain * won't work on all browsers. Also, loading templates from `file://` URL does not work on some * browsers. * * ## This feels like too much overhead * * It's important to remember that SCE only applies to interpolation expressions. * * If your expressions are constant literals, they're automatically trusted and you don't need to * call `$sce.trustAs` on them (remember to include the `ngSanitize` module) (e.g. * `

`) just works. * * Additionally, `a[href]` and `img[src]` automatically sanitize their URLs and do not pass them * through {@link ng.$sce#getTrusted $sce.getTrusted}. SCE doesn't play a role here. * * The included {@link ng.$sceDelegate $sceDelegate} comes with sane defaults to allow you to load * templates in `ng-include` from your application's domain without having to even know about SCE. * It blocks loading templates from other domains or loading templates over http from an https * served document. You can change these by setting your own custom {@link * ng.$sceDelegateProvider#resourceUrlWhitelist whitelists} and {@link * ng.$sceDelegateProvider#resourceUrlBlacklist blacklists} for matching such URLs. * * This significantly reduces the overhead. It is far easier to pay the small overhead and have an * application that's secure and can be audited to verify that with much more ease than bolting * security onto an application later. * * * ## What trusted context types are supported? * * | Context | Notes | * |---------------------|----------------| * | `$sce.HTML` | For HTML that's safe to source into the application. The {@link ng.directive:ngBindHtml ngBindHtml} directive uses this context for bindings. If an unsafe value is encountered and the {@link ngSanitize $sanitize} module is present this will sanitize the value instead of throwing an error. | * | `$sce.CSS` | For CSS that's safe to source into the application. Currently unused. Feel free to use it in your own directives. | * | `$sce.URL` | For URLs that are safe to follow as links. Currently unused (`
Note that `$sce.RESOURCE_URL` makes a stronger statement about the URL than `$sce.URL` does and therefore contexts requiring values trusted for `$sce.RESOURCE_URL` can be used anywhere that values trusted for `$sce.URL` are required. | * | `$sce.JS` | For JavaScript that is safe to execute in your application's context. Currently unused. Feel free to use it in your own directives. | * * ## Format of items in {@link ng.$sceDelegateProvider#resourceUrlWhitelist resourceUrlWhitelist}/{@link ng.$sceDelegateProvider#resourceUrlBlacklist Blacklist} * * Each element in these arrays must be one of the following: * * - **'self'** * - The special **string**, `'self'`, can be used to match against all URLs of the **same * domain** as the application document using the **same protocol**. * - **String** (except the special value `'self'`) * - The string is matched against the full *normalized / absolute URL* of the resource * being tested (substring matches are not good enough.) * - There are exactly **two wildcard sequences** - `*` and `**`. All other characters * match themselves. * - `*`: matches zero or more occurrences of any character other than one of the following 6 * characters: '`:`', '`/`', '`.`', '`?`', '`&`' and '`;`'. It's a useful wildcard for use * in a whitelist. * - `**`: matches zero or more occurrences of *any* character. As such, it's not * appropriate for use in a scheme, domain, etc. as it would match too much. (e.g. * http://**.example.com/ would match http://evil.com/?ignore=.example.com/ and that might * not have been the intention.) Its usage at the very end of the path is ok. (e.g. * http://foo.example.com/templates/**). * - **RegExp** (*see caveat below*) * - *Caveat*: While regular expressions are powerful and offer great flexibility, their syntax * (and all the inevitable escaping) makes them *harder to maintain*. It's easy to * accidentally introduce a bug when one updates a complex expression (imho, all regexes should * have good test coverage). For instance, the use of `.` in the regex is correct only in a * small number of cases. A `.` character in the regex used when matching the scheme or a * subdomain could be matched against a `:` or literal `.` that was likely not intended. It * is highly recommended to use the string patterns and only fall back to regular expressions * as a last resort. * - The regular expression must be an instance of RegExp (i.e. not a string.) It is * matched against the **entire** *normalized / absolute URL* of the resource being tested * (even when the RegExp did not have the `^` and `$` codes.) In addition, any flags * present on the RegExp (such as multiline, global, ignoreCase) are ignored. * - If you are generating your JavaScript from some other templating engine (not * recommended, e.g. in issue [#4006](https://github.com/angular/angular.js/issues/4006)), * remember to escape your regular expression (and be aware that you might need more than * one level of escaping depending on your templating engine and the way you interpolated * the value.) Do make use of your platform's escaping mechanism as it might be good * enough before coding your own. E.g. Ruby has * [Regexp.escape(str)](http://www.ruby-doc.org/core-2.0.0/Regexp.html#method-c-escape) * and Python has [re.escape](http://docs.python.org/library/re.html#re.escape). * Javascript lacks a similar built in function for escaping. Take a look at Google * Closure library's [goog.string.regExpEscape(s)]( * http://docs.closure-library.googlecode.com/git/closure_goog_string_string.js.source.html#line962). * * Refer {@link ng.$sceDelegateProvider $sceDelegateProvider} for an example. * * ## Show me an example using SCE. * * * *

*

* User comments
* By default, HTML that isn't explicitly trusted (e.g. Alice's comment) is sanitized when * $sanitize is available. If $sanitize isn't available, this results in an error instead of an * exploit. *

* {{userComment.name}}: * *
*

* * * * angular.module('mySceApp', ['ngSanitize']) * .controller('AppController', ['$http', '$templateCache', '$sce', * function($http, $templateCache, $sce) { * var self = this; * $http.get("test_data.json", {cache: $templateCache}).success(function(userComments) { * self.userComments = userComments; * }); * self.explicitlyTrustedHtml = $sce.trustAsHtml( * 'Hover over this text.'); * }]); * * * * [ * { "name": "Alice", * "htmlComment": * "Is anyone reading this?" * }, * { "name": "Bob", * "htmlComment": "Yes! Am I the only other one?" * } * ] * * * * describe('SCE doc demo', function() { * it('should sanitize untrusted values', function() { * expect(element.all(by.css('.htmlComment')).first().getInnerHtml()) * .toBe('Is anyone reading this?'); * }); * * it('should NOT sanitize explicitly trusted values', function() { * expect(element(by.id('explicitlyTrustedHtml')).getInnerHtml()).toBe( * 'Hover over this text.'); * }); * }); * * * * * * ## Can I disable SCE completely? * * Yes, you can. However, this is strongly discouraged. SCE gives you a lot of security benefits * for little coding overhead. It will be much harder to take an SCE disabled application and * either secure it on your own or enable SCE at a later stage. It might make sense to disable SCE * for cases where you have a lot of existing code that was written before SCE was introduced and * you're migrating them a module at a time. * * That said, here's how you can completely disable SCE: * * ``` * angular.module('myAppWithSceDisabledmyApp', []).config(function($sceProvider) { * // Completely disable SCE. For demonstration purposes only! * // Do not use in new projects. * $sceProvider.enabled(false); * }); * ``` * */ /* jshint maxlen: 100 */ function $SceProvider() { var enabled = true; /** * @ngdoc method * @name $sceProvider#enabled * @kind function * * @param {boolean=} value If provided, then enables/disables SCE. * @return {boolean} true if SCE is enabled, false otherwise. * * @description * Enables/disables SCE and returns the current value. */ this.enabled = function(value) { if (arguments.length) { enabled = !!value; } return enabled; }; /* Design notes on the default implementation for SCE. * * The API contract for the SCE delegate * ------------------------------------- * The SCE delegate object must provide the following 3 methods: * * - trustAs(contextEnum, value) * This method is used to tell the SCE service that the provided value is OK to use in the * contexts specified by contextEnum. It must return an object that will be accepted by * getTrusted() for a compatible contextEnum and return this value. * * - valueOf(value) * For values that were not produced by trustAs(), return them as is. For values that were * produced by trustAs(), return the corresponding input value to trustAs. Basically, if * trustAs is wrapping the given values into some type, this operation unwraps it when given * such a value. * * - getTrusted(contextEnum, value) * This function should return the a value that is safe to use in the context specified by * contextEnum or throw and exception otherwise. * * NOTE: This contract deliberately does NOT state that values returned by trustAs() must be * opaque or wrapped in some holder object. That happens to be an implementation detail. For * instance, an implementation could maintain a registry of all trusted objects by context. In * such a case, trustAs() would return the same object that was passed in. getTrusted() would * return the same object passed in if it was found in the registry under a compatible context or * throw an exception otherwise. An implementation might only wrap values some of the time based * on some criteria. getTrusted() might return a value and not throw an exception for special * constants or objects even if not wrapped. All such implementations fulfill this contract. * * * A note on the inheritance model for SCE contexts * ------------------------------------------------ * I've used inheritance and made RESOURCE_URL wrapped types a subtype of URL wrapped types. This * is purely an implementation details. * * The contract is simply this: * * getTrusted($sce.RESOURCE_URL, value) succeeding implies that getTrusted($sce.URL, value) * will also succeed. * * Inheritance happens to capture this in a natural way. In some future, we * may not use inheritance anymore. That is OK because no code outside of * sce.js and sceSpecs.js would need to be aware of this detail. */ this.$get = ['$parse', '$sceDelegate', function( $parse, $sceDelegate) { // Prereq: Ensure that we're not running in IE<11 quirks mode. In that mode, IE < 11 allow // the "expression(javascript expression)" syntax which is insecure. if (enabled && msie < 8) { throw $sceMinErr('iequirks', 'Strict Contextual Escaping does not support Internet Explorer version < 11 in quirks ' + 'mode. You can fix this by adding the text to the top of your HTML ' + 'document. See http://docs.angularjs.org/api/ng.$sce for more information.'); } var sce = shallowCopy(SCE_CONTEXTS); /** * @ngdoc method * @name $sce#isEnabled * @kind function * * @return {Boolean} true if SCE is enabled, false otherwise. If you want to set the value, you * have to do it at module config time on {@link ng.$sceProvider $sceProvider}. * * @description * Returns a boolean indicating if SCE is enabled. */ sce.isEnabled = function() { return enabled; }; sce.trustAs = $sceDelegate.trustAs; sce.getTrusted = $sceDelegate.getTrusted; sce.valueOf = $sceDelegate.valueOf; if (!enabled) { sce.trustAs = sce.getTrusted = function(type, value) { return value; }; sce.valueOf = identity; } /** * @ngdoc method * @name $sce#parseAs * * @description * Converts Angular {@link guide/expression expression} into a function. This is like {@link * ng.$parse $parse} and is identical when the expression is a literal constant. Otherwise, it * wraps the expression in a call to {@link ng.$sce#getTrusted $sce.getTrusted(*type*, * *result*)} * * @param {string} type The kind of SCE context in which this result will be used. * @param {string} expression String expression to compile. * @returns {function(context, locals)} a function which represents the compiled expression: * * * `context` – `{object}` – an object against which any expressions embedded in the strings * are evaluated against (typically a scope object). * * `locals` – `{object=}` – local variables context object, useful for overriding values in * `context`. */ sce.parseAs = function sceParseAs(type, expr) { var parsed = $parse(expr); if (parsed.literal && parsed.constant) { return parsed; } else { return $parse(expr, function(value) { return sce.getTrusted(type, value); }); } }; /** * @ngdoc method * @name $sce#trustAs * * @description * Delegates to {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}. As such, * returns an object that is trusted by angular for use in specified strict contextual * escaping contexts (such as ng-bind-html, ng-include, any src attribute * interpolation, any dom event binding attribute interpolation such as for onclick, etc.) * that uses the provided value. See * {@link ng.$sce $sce} for enabling strict contextual * escaping. * * @param {string} type The kind of context in which this value is safe for use. e.g. url, * resourceUrl, html, js and css. * @param {*} value The value that that should be considered trusted/safe. * @returns {*} A value that can be used to stand in for the provided `value` in places * where Angular expects a $sce.trustAs() return value. */ /** * @ngdoc method * @name $sce#trustAsHtml * * @description * Shorthand method. `$sce.trustAsHtml(value)` → * {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.HTML, value)`} * * @param {*} value The value to trustAs. * @returns {*} An object that can be passed to {@link ng.$sce#getTrustedHtml * $sce.getTrustedHtml(value)} to obtain the original value. (privileged directives * only accept expressions that are either literal constants or are the * return value of {@link ng.$sce#trustAs $sce.trustAs}.) */ /** * @ngdoc method * @name $sce#trustAsUrl * * @description * Shorthand method. `$sce.trustAsUrl(value)` → * {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.URL, value)`} * * @param {*} value The value to trustAs. * @returns {*} An object that can be passed to {@link ng.$sce#getTrustedUrl * $sce.getTrustedUrl(value)} to obtain the original value. (privileged directives * only accept expressions that are either literal constants or are the * return value of {@link ng.$sce#trustAs $sce.trustAs}.) */ /** * @ngdoc method * @name $sce#trustAsResourceUrl * * @description * Shorthand method. `$sce.trustAsResourceUrl(value)` → * {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.RESOURCE_URL, value)`} * * @param {*} value The value to trustAs. * @returns {*} An object that can be passed to {@link ng.$sce#getTrustedResourceUrl * $sce.getTrustedResourceUrl(value)} to obtain the original value. (privileged directives * only accept expressions that are either literal constants or are the return * value of {@link ng.$sce#trustAs $sce.trustAs}.) */ /** * @ngdoc method * @name $sce#trustAsJs * * @description * Shorthand method. `$sce.trustAsJs(value)` → * {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.JS, value)`} * * @param {*} value The value to trustAs. * @returns {*} An object that can be passed to {@link ng.$sce#getTrustedJs * $sce.getTrustedJs(value)} to obtain the original value. (privileged directives * only accept expressions that are either literal constants or are the * return value of {@link ng.$sce#trustAs $sce.trustAs}.) */ /** * @ngdoc method * @name $sce#getTrusted * * @description * Delegates to {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted`}. As such, * takes the result of a {@link ng.$sce#trustAs `$sce.trustAs`}() call and returns the * originally supplied value if the queried context type is a supertype of the created type. * If this condition isn't satisfied, throws an exception. * * @param {string} type The kind of context in which this value is to be used. * @param {*} maybeTrusted The result of a prior {@link ng.$sce#trustAs `$sce.trustAs`} * call. * @returns {*} The value the was originally provided to * {@link ng.$sce#trustAs `$sce.trustAs`} if valid in this context. * Otherwise, throws an exception. */ /** * @ngdoc method * @name $sce#getTrustedHtml * * @description * Shorthand method. `$sce.getTrustedHtml(value)` → * {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.HTML, value)`} * * @param {*} value The value to pass to `$sce.getTrusted`. * @returns {*} The return value of `$sce.getTrusted($sce.HTML, value)` */ /** * @ngdoc method * @name $sce#getTrustedCss * * @description * Shorthand method. `$sce.getTrustedCss(value)` → * {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.CSS, value)`} * * @param {*} value The value to pass to `$sce.getTrusted`. * @returns {*} The return value of `$sce.getTrusted($sce.CSS, value)` */ /** * @ngdoc method * @name $sce#getTrustedUrl * * @description * Shorthand method. `$sce.getTrustedUrl(value)` → * {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.URL, value)`} * * @param {*} value The value to pass to `$sce.getTrusted`. * @returns {*} The return value of `$sce.getTrusted($sce.URL, value)` */ /** * @ngdoc method * @name $sce#getTrustedResourceUrl * * @description * Shorthand method. `$sce.getTrustedResourceUrl(value)` → * {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.RESOURCE_URL, value)`} * * @param {*} value The value to pass to `$sceDelegate.getTrusted`. * @returns {*} The return value of `$sce.getTrusted($sce.RESOURCE_URL, value)` */ /** * @ngdoc method * @name $sce#getTrustedJs * * @description * Shorthand method. `$sce.getTrustedJs(value)` → * {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.JS, value)`} * * @param {*} value The value to pass to `$sce.getTrusted`. * @returns {*} The return value of `$sce.getTrusted($sce.JS, value)` */ /** * @ngdoc method * @name $sce#parseAsHtml * * @description * Shorthand method. `$sce.parseAsHtml(expression string)` → * {@link ng.$sce#parseAs `$sce.parseAs($sce.HTML, value)`} * * @param {string} expression String expression to compile. * @returns {function(context, locals)} a function which represents the compiled expression: * * * `context` – `{object}` – an object against which any expressions embedded in the strings * are evaluated against (typically a scope object). * * `locals` – `{object=}` – local variables context object, useful for overriding values in * `context`. */ /** * @ngdoc method * @name $sce#parseAsCss * * @description * Shorthand method. `$sce.parseAsCss(value)` → * {@link ng.$sce#parseAs `$sce.parseAs($sce.CSS, value)`} * * @param {string} expression String expression to compile. * @returns {function(context, locals)} a function which represents the compiled expression: * * * `context` – `{object}` – an object against which any expressions embedded in the strings * are evaluated against (typically a scope object). * * `locals` – `{object=}` – local variables context object, useful for overriding values in * `context`. */ /** * @ngdoc method * @name $sce#parseAsUrl * * @description * Shorthand method. `$sce.parseAsUrl(value)` → * {@link ng.$sce#parseAs `$sce.parseAs($sce.URL, value)`} * * @param {string} expression String expression to compile. * @returns {function(context, locals)} a function which represents the compiled expression: * * * `context` – `{object}` – an object against which any expressions embedded in the strings * are evaluated against (typically a scope object). * * `locals` – `{object=}` – local variables context object, useful for overriding values in * `context`. */ /** * @ngdoc method * @name $sce#parseAsResourceUrl * * @description * Shorthand method. `$sce.parseAsResourceUrl(value)` → * {@link ng.$sce#parseAs `$sce.parseAs($sce.RESOURCE_URL, value)`} * * @param {string} expression String expression to compile. * @returns {function(context, locals)} a function which represents the compiled expression: * * * `context` – `{object}` – an object against which any expressions embedded in the strings * are evaluated against (typically a scope object). * * `locals` – `{object=}` – local variables context object, useful for overriding values in * `context`. */ /** * @ngdoc method * @name $sce#parseAsJs * * @description * Shorthand method. `$sce.parseAsJs(value)` → * {@link ng.$sce#parseAs `$sce.parseAs($sce.JS, value)`} * * @param {string} expression String expression to compile. * @returns {function(context, locals)} a function which represents the compiled expression: * * * `context` – `{object}` – an object against which any expressions embedded in the strings * are evaluated against (typically a scope object). * * `locals` – `{object=}` – local variables context object, useful for overriding values in * `context`. */ // Shorthand delegations. var parse = sce.parseAs, getTrusted = sce.getTrusted, trustAs = sce.trustAs; forEach(SCE_CONTEXTS, function(enumValue, name) { var lName = lowercase(name); sce[camelCase("parse_as_" + lName)] = function(expr) { return parse(enumValue, expr); }; sce[camelCase("get_trusted_" + lName)] = function(value) { return getTrusted(enumValue, value); }; sce[camelCase("trust_as_" + lName)] = function(value) { return trustAs(enumValue, value); }; }); return sce; }]; } /** * !!! This is an undocumented "private" service !!! * * @name $sniffer * @requires $window * @requires $document * * @property {boolean} history Does the browser support html5 history api ? * @property {boolean} transitions Does the browser support CSS transition events ? * @property {boolean} animations Does the browser support CSS animation events ? * * @description * This is very simple implementation of testing browser's features. */ function $SnifferProvider() { this.$get = ['$window', '$document', function($window, $document) { var eventSupport = {}, // Chrome Packaged Apps are not allowed to access `history.pushState`. They can be detected by // the presence of `chrome.app.runtime` (see https://developer.chrome.com/apps/api_index) isChromePackagedApp = $window.chrome && $window.chrome.app && $window.chrome.app.runtime, hasHistoryPushState = !isChromePackagedApp && $window.history && $window.history.pushState, android = toInt((/android (\d+)/.exec(lowercase(($window.navigator || {}).userAgent)) || [])[1]), boxee = /Boxee/i.test(($window.navigator || {}).userAgent), document = $document[0] || {}, vendorPrefix, vendorRegex = /^(Moz|webkit|ms)(?=[A-Z])/, bodyStyle = document.body && document.body.style, transitions = false, animations = false, match; if (bodyStyle) { for (var prop in bodyStyle) { if (match = vendorRegex.exec(prop)) { vendorPrefix = match[0]; vendorPrefix = vendorPrefix[0].toUpperCase() + vendorPrefix.substr(1); break; } } if (!vendorPrefix) { vendorPrefix = ('WebkitOpacity' in bodyStyle) && 'webkit'; } transitions = !!(('transition' in bodyStyle) || (vendorPrefix + 'Transition' in bodyStyle)); animations = !!(('animation' in bodyStyle) || (vendorPrefix + 'Animation' in bodyStyle)); if (android && (!transitions || !animations)) { transitions = isString(bodyStyle.webkitTransition); animations = isString(bodyStyle.webkitAnimation); } } return { // Android has history.pushState, but it does not update location correctly // so let's not use the history API at all. // http://code.google.com/p/android/issues/detail?id=17471 // https://github.com/angular/angular.js/issues/904 // older webkit browser (533.9) on Boxee box has exactly the same problem as Android has // so let's not use the history API also // We are purposefully using `!(android < 4)` to cover the case when `android` is undefined // jshint -W018 history: !!(hasHistoryPushState && !(android < 4) && !boxee), // jshint +W018 hasEvent: function(event) { // IE9 implements 'input' event it's so fubared that we rather pretend that it doesn't have // it. In particular the event is not fired when backspace or delete key are pressed or // when cut operation is performed. // IE10+ implements 'input' event but it erroneously fires under various situations, // e.g. when placeholder changes, or a form is focused. if (event === 'input' && msie <= 11) return false; if (isUndefined(eventSupport[event])) { var divElm = document.createElement('div'); eventSupport[event] = 'on' + event in divElm; } return eventSupport[event]; }, csp: csp(), vendorPrefix: vendorPrefix, transitions: transitions, animations: animations, android: android }; }]; } var $templateRequestMinErr = minErr('$compile'); /** * @ngdoc provider * @name $templateRequestProvider * @description * Used to configure the options passed to the {@link $http} service when making a template request. * * For example, it can be used for specifying the "Accept" header that is sent to the server, when * requesting a template. */ function $TemplateRequestProvider() { var httpOptions; /** * @ngdoc method * @name $templateRequestProvider#httpOptions * @description * The options to be passed to the {@link $http} service when making the request. * You can use this to override options such as the "Accept" header for template requests. * * The {@link $templateRequest} will set the `cache` and the `transformResponse` properties of the * options if not overridden here. * * @param {string=} value new value for the {@link $http} options. * @returns {string|self} Returns the {@link $http} options when used as getter and self if used as setter. */ this.httpOptions = function(val) { if (val) { httpOptions = val; return this; } return httpOptions; }; /** * @ngdoc service * @name $templateRequest * * @description * The `$templateRequest` service runs security checks then downloads the provided template using * `$http` and, upon success, stores the contents inside of `$templateCache`. If the HTTP request * fails or the response data of the HTTP request is empty, a `$compile` error will be thrown (the * exception can be thwarted by setting the 2nd parameter of the function to true). Note that the * contents of `$templateCache` are trusted, so the call to `$sce.getTrustedUrl(tpl)` is omitted * when `tpl` is of type string and `$templateCache` has the matching entry. * * If you want to pass custom options to the `$http` service, such as setting the Accept header you * can configure this via {@link $templateRequestProvider#httpOptions}. * * @param {string|TrustedResourceUrl} tpl The HTTP request template URL * @param {boolean=} ignoreRequestError Whether or not to ignore the exception when the request fails or the template is empty * * @return {Promise} a promise for the HTTP response data of the given URL. * * @property {number} totalPendingRequests total amount of pending template requests being downloaded. */ this.$get = ['$templateCache', '$http', '$q', '$sce', function($templateCache, $http, $q, $sce) { function handleRequestFn(tpl, ignoreRequestError) { handleRequestFn.totalPendingRequests++; // We consider the template cache holds only trusted templates, so // there's no need to go through whitelisting again for keys that already // are included in there. This also makes Angular accept any script // directive, no matter its name. However, we still need to unwrap trusted // types. if (!isString(tpl) || isUndefined($templateCache.get(tpl))) { tpl = $sce.getTrustedResourceUrl(tpl); } var transformResponse = $http.defaults && $http.defaults.transformResponse; if (isArray(transformResponse)) { transformResponse = transformResponse.filter(function(transformer) { return transformer !== defaultHttpResponseTransform; }); } else if (transformResponse === defaultHttpResponseTransform) { transformResponse = null; } return $http.get(tpl, extend({ cache: $templateCache, transformResponse: transformResponse }, httpOptions)) ['finally'](function() { handleRequestFn.totalPendingRequests--; }) .then(function(response) { $templateCache.put(tpl, response.data); return response.data; }, handleError); function handleError(resp) { if (!ignoreRequestError) { throw $templateRequestMinErr('tpload', 'Failed to load template: {0} (HTTP status: {1} {2})', tpl, resp.status, resp.statusText); } return $q.reject(resp); } } handleRequestFn.totalPendingRequests = 0; return handleRequestFn; }]; } function $$TestabilityProvider() { this.$get = ['$rootScope', '$browser', '$location', function($rootScope, $browser, $location) { /** * @name $testability * * @description * The private $$testability service provides a collection of methods for use when debugging * or by automated test and debugging tools. */ var testability = {}; /** * @name $$testability#findBindings * * @description * Returns an array of elements that are bound (via ng-bind or {{}}) * to expressions matching the input. * * @param {Element} element The element root to search from. * @param {string} expression The binding expression to match. * @param {boolean} opt_exactMatch If true, only returns exact matches * for the expression. Filters and whitespace are ignored. */ testability.findBindings = function(element, expression, opt_exactMatch) { var bindings = element.getElementsByClassName('ng-binding'); var matches = []; forEach(bindings, function(binding) { var dataBinding = angular.element(binding).data('$binding'); if (dataBinding) { forEach(dataBinding, function(bindingName) { if (opt_exactMatch) { var matcher = new RegExp('(^|\\s)' + escapeForRegexp(expression) + '(\\s|\\||$)'); if (matcher.test(bindingName)) { matches.push(binding); } } else { if (bindingName.indexOf(expression) != -1) { matches.push(binding); } } }); } }); return matches; }; /** * @name $$testability#findModels * * @description * Returns an array of elements that are two-way found via ng-model to * expressions matching the input. * * @param {Element} element The element root to search from. * @param {string} expression The model expression to match. * @param {boolean} opt_exactMatch If true, only returns exact matches * for the expression. */ testability.findModels = function(element, expression, opt_exactMatch) { var prefixes = ['ng-', 'data-ng-', 'ng\\:']; for (var p = 0; p < prefixes.length; ++p) { var attributeEquals = opt_exactMatch ? '=' : '*='; var selector = '[' + prefixes[p] + 'model' + attributeEquals + '"' + expression + '"]'; var elements = element.querySelectorAll(selector); if (elements.length) { return elements; } } }; /** * @name $$testability#getLocation * * @description * Shortcut for getting the location in a browser agnostic way. Returns * the path, search, and hash. (e.g. /path?a=b#hash) */ testability.getLocation = function() { return $location.url(); }; /** * @name $$testability#setLocation * * @description * Shortcut for navigating to a location without doing a full page reload. * * @param {string} url The location url (path, search and hash, * e.g. /path?a=b#hash) to go to. */ testability.setLocation = function(url) { if (url !== $location.url()) { $location.url(url); $rootScope.$digest(); } }; /** * @name $$testability#whenStable * * @description * Calls the callback when $timeout and $http requests are completed. * * @param {function} callback */ testability.whenStable = function(callback) { $browser.notifyWhenNoOutstandingRequests(callback); }; return testability; }]; } function $TimeoutProvider() { this.$get = ['$rootScope', '$browser', '$q', '$$q', '$exceptionHandler', function($rootScope, $browser, $q, $$q, $exceptionHandler) { var deferreds = {}; /** * @ngdoc service * @name $timeout * * @description * Angular's wrapper for `window.setTimeout`. The `fn` function is wrapped into a try/catch * block and delegates any exceptions to * {@link ng.$exceptionHandler $exceptionHandler} service. * * The return value of calling `$timeout` is a promise, which will be resolved when * the delay has passed and the timeout function, if provided, is executed. * * To cancel a timeout request, call `$timeout.cancel(promise)`. * * In tests you can use {@link ngMock.$timeout `$timeout.flush()`} to * synchronously flush the queue of deferred functions. * * If you only want a promise that will be resolved after some specified delay * then you can call `$timeout` without the `fn` function. * * @param {function()=} fn A function, whose execution should be delayed. * @param {number=} [delay=0] Delay in milliseconds. * @param {boolean=} [invokeApply=true] If set to `false` skips model dirty checking, otherwise * will invoke `fn` within the {@link ng.$rootScope.Scope#$apply $apply} block. * @param {...*=} Pass additional parameters to the executed function. * @returns {Promise} Promise that will be resolved when the timeout is reached. The promise * will be resolved with the return value of the `fn` function. * */ function timeout(fn, delay, invokeApply) { if (!isFunction(fn)) { invokeApply = delay; delay = fn; fn = noop; } var args = sliceArgs(arguments, 3), skipApply = (isDefined(invokeApply) && !invokeApply), deferred = (skipApply ? $$q : $q).defer(), promise = deferred.promise, timeoutId; timeoutId = $browser.defer(function() { try { deferred.resolve(fn.apply(null, args)); } catch (e) { deferred.reject(e); $exceptionHandler(e); } finally { delete deferreds[promise.$$timeoutId]; } if (!skipApply) $rootScope.$apply(); }, delay); promise.$$timeoutId = timeoutId; deferreds[timeoutId] = deferred; return promise; } /** * @ngdoc method * @name $timeout#cancel * * @description * Cancels a task associated with the `promise`. As a result of this, the promise will be * resolved with a rejection. * * @param {Promise=} promise Promise returned by the `$timeout` function. * @returns {boolean} Returns `true` if the task hasn't executed yet and was successfully * canceled. */ timeout.cancel = function(promise) { if (promise && promise.$$timeoutId in deferreds) { deferreds[promise.$$timeoutId].reject('canceled'); delete deferreds[promise.$$timeoutId]; return $browser.defer.cancel(promise.$$timeoutId); } return false; }; return timeout; }]; } // NOTE: The usage of window and document instead of $window and $document here is // deliberate. This service depends on the specific behavior of anchor nodes created by the // browser (resolving and parsing URLs) that is unlikely to be provided by mock objects and // cause us to break tests. In addition, when the browser resolves a URL for XHR, it // doesn't know about mocked locations and resolves URLs to the real document - which is // exactly the behavior needed here. There is little value is mocking these out for this // service. var urlParsingNode = window.document.createElement("a"); var originUrl = urlResolve(window.location.href); /** * * Implementation Notes for non-IE browsers * ---------------------------------------- * Assigning a URL to the href property of an anchor DOM node, even one attached to the DOM, * results both in the normalizing and parsing of the URL. Normalizing means that a relative * URL will be resolved into an absolute URL in the context of the application document. * Parsing means that the anchor node's host, hostname, protocol, port, pathname and related * properties are all populated to reflect the normalized URL. This approach has wide * compatibility - Safari 1+, Mozilla 1+, Opera 7+,e etc. See * http://www.aptana.com/reference/html/api/HTMLAnchorElement.html * * Implementation Notes for IE * --------------------------- * IE <= 10 normalizes the URL when assigned to the anchor node similar to the other * browsers. However, the parsed components will not be set if the URL assigned did not specify * them. (e.g. if you assign a.href = "foo", then a.protocol, a.host, etc. will be empty.) We * work around that by performing the parsing in a 2nd step by taking a previously normalized * URL (e.g. by assigning to a.href) and assigning it a.href again. This correctly populates the * properties such as protocol, hostname, port, etc. * * References: * http://developer.mozilla.org/en-US/docs/Web/API/HTMLAnchorElement * http://www.aptana.com/reference/html/api/HTMLAnchorElement.html * http://url.spec.whatwg.org/#urlutils * https://github.com/angular/angular.js/pull/2902 * http://james.padolsey.com/javascript/parsing-urls-with-the-dom/ * * @kind function * @param {string} url The URL to be parsed. * @description Normalizes and parses a URL. * @returns {object} Returns the normalized URL as a dictionary. * * | member name | Description | * |---------------|----------------| * | href | A normalized version of the provided URL if it was not an absolute URL | * | protocol | The protocol including the trailing colon | * | host | The host and port (if the port is non-default) of the normalizedUrl | * | search | The search params, minus the question mark | * | hash | The hash string, minus the hash symbol * | hostname | The hostname * | port | The port, without ":" * | pathname | The pathname, beginning with "/" * */ function urlResolve(url) { var href = url; if (msie) { // Normalize before parse. Refer Implementation Notes on why this is // done in two steps on IE. urlParsingNode.setAttribute("href", href); href = urlParsingNode.href; } urlParsingNode.setAttribute('href', href); // urlParsingNode provides the UrlUtils interface - http://url.spec.whatwg.org/#urlutils return { href: urlParsingNode.href, protocol: urlParsingNode.protocol ? urlParsingNode.protocol.replace(/:$/, '') : '', host: urlParsingNode.host, search: urlParsingNode.search ? urlParsingNode.search.replace(/^\?/, '') : '', hash: urlParsingNode.hash ? urlParsingNode.hash.replace(/^#/, '') : '', hostname: urlParsingNode.hostname, port: urlParsingNode.port, pathname: (urlParsingNode.pathname.charAt(0) === '/') ? urlParsingNode.pathname : '/' + urlParsingNode.pathname }; } /** * Parse a request URL and determine whether this is a same-origin request as the application document. * * @param {string|object} requestUrl The url of the request as a string that will be resolved * or a parsed URL object. * @returns {boolean} Whether the request is for the same origin as the application document. */ function urlIsSameOrigin(requestUrl) { var parsed = (isString(requestUrl)) ? urlResolve(requestUrl) : requestUrl; return (parsed.protocol === originUrl.protocol && parsed.host === originUrl.host); } /** * @ngdoc service * @name $window * * @description * A reference to the browser's `window` object. While `window` * is globally available in JavaScript, it causes testability problems, because * it is a global variable. In angular we always refer to it through the * `$window` service, so it may be overridden, removed or mocked for testing. * * Expressions, like the one defined for the `ngClick` directive in the example * below, are evaluated with respect to the current scope. Therefore, there is * no risk of inadvertently coding in a dependency on a global value in such an * expression. * * @example

it('should display the greeting in the input box', function() { element(by.model('greeting')).sendKeys('Hello, E2E Tests'); // If we click the button it will block the test runner // element(':button').click(); }); */ function $WindowProvider() { this.$get = valueFn(window); } /** * @name $$cookieReader * @requires $document * * @description * This is a private service for reading cookies used by $http and ngCookies * * @return {Object} a key/value map of the current cookies */ function $$CookieReader($document) { var rawDocument = $document[0] || {}; var lastCookies = {}; var lastCookieString = ''; function safeDecodeURIComponent(str) { try { return decodeURIComponent(str); } catch (e) { return str; } } return function() { var cookieArray, cookie, i, index, name; var currentCookieString = rawDocument.cookie || ''; if (currentCookieString !== lastCookieString) { lastCookieString = currentCookieString; cookieArray = lastCookieString.split('; '); lastCookies = {}; for (i = 0; i < cookieArray.length; i++) { cookie = cookieArray[i]; index = cookie.indexOf('='); if (index > 0) { //ignore nameless cookies name = safeDecodeURIComponent(cookie.substring(0, index)); // the first value that is seen for a cookie is the most // specific one. values for the same cookie name that // follow are for less specific paths. if (isUndefined(lastCookies[name])) { lastCookies[name] = safeDecodeURIComponent(cookie.substring(index + 1)); } } } } return lastCookies; }; } $$CookieReader.$inject = ['$document']; function $$CookieReaderProvider() { this.$get = $$CookieReader; } /* global currencyFilter: true, dateFilter: true, filterFilter: true, jsonFilter: true, limitToFilter: true, lowercaseFilter: true, numberFilter: true, orderByFilter: true, uppercaseFilter: true, */ /** * @ngdoc provider * @name $filterProvider * @description * * Filters are just functions which transform input to an output. However filters need to be * Dependency Injected. To achieve this a filter definition consists of a factory function which is * annotated with dependencies and is responsible for creating a filter function. * *

* **Note:** Filter names must be valid angular {@link expression} identifiers, such as `uppercase` or `orderBy`. * Names with special characters, such as hyphens and dots, are not allowed. If you wish to namespace * your filters, then you can use capitalization (`myappSubsectionFilterx`) or underscores * (`myapp_subsection_filterx`). *

* * ```js * // Filter registration * function MyModule($provide, $filterProvider) { * // create a service to demonstrate injection (not always needed) * $provide.value('greet', function(name){ * return 'Hello ' + name + '!'; * }); * * // register a filter factory which uses the * // greet service to demonstrate DI. * $filterProvider.register('greet', function(greet){ * // return the filter function which uses the greet service * // to generate salutation * return function(text) { * // filters need to be forgiving so check input validity * return text && greet(text) || text; * }; * }); * } * ``` * * The filter function is registered with the `$injector` under the filter name suffix with * `Filter`. * * ```js * it('should be the same instance', inject( * function($filterProvider) { * $filterProvider.register('reverse', function(){ * return ...; * }); * }, * function($filter, reverseFilter) { * expect($filter('reverse')).toBe(reverseFilter); * }); * ``` * * * For more information about how angular filters work, and how to create your own filters, see * {@link guide/filter Filters} in the Angular Developer Guide. */ /** * @ngdoc service * @name $filter * @kind function * @description * Filters are used for formatting data displayed to the user. * * The general syntax in templates is as follows: * * {{ expression [| filter_name[:parameter_value] ... ] }} * * @param {String} name Name of the filter function to retrieve * @return {Function} the filter function * @example

angular.module('filterExample', []) .controller('MainCtrl', function($scope, $filter) { $scope.originalText = 'hello'; $scope.filteredText = $filter('uppercase')($scope.originalText); }); */ $FilterProvider.$inject = ['$provide']; function $FilterProvider($provide) { var suffix = 'Filter'; /** * @ngdoc method * @name $filterProvider#register * @param {string|Object} name Name of the filter function, or an object map of filters where * the keys are the filter names and the values are the filter factories. * *

* @param {Function} factory If the first argument was a string, a factory function for the filter to be registered. * @returns {Object} Registered filter instance, or if a map of filters was provided then a map * of the registered filter instances. */ function register(name, factory) { if (isObject(name)) { var filters = {}; forEach(name, function(filter, key) { filters[key] = register(key, filter); }); return filters; } else { return $provide.factory(name + suffix, factory); } } this.register = register; this.$get = ['$injector', function($injector) { return function(name) { return $injector.get(name + suffix); }; }]; //////////////////////////////////////// /* global currencyFilter: false, dateFilter: false, filterFilter: false, jsonFilter: false, limitToFilter: false, lowercaseFilter: false, numberFilter: false, orderByFilter: false, uppercaseFilter: false, */ register('currency', currencyFilter); register('date', dateFilter); register('filter', filterFilter); register('json', jsonFilter); register('limitTo', limitToFilter); register('lowercase', lowercaseFilter); register('number', numberFilter); register('orderBy', orderByFilter); register('uppercase', uppercaseFilter); } /** * @ngdoc filter * @name filter * @kind function * * @description * Selects a subset of items from `array` and returns it as a new array. * * @param {Array} array The source array. * @param {string|Object|function()} expression The predicate to be used for selecting items from * `array`. * * Can be one of: * * - `string`: The string is used for matching against the contents of the `array`. All strings or * objects with string properties in `array` that match this string will be returned. This also * applies to nested object properties. * The predicate can be negated by prefixing the string with `!`. * * - `Object`: A pattern object can be used to filter specific properties on objects contained * by `array`. For example `{name:"M", phone:"1"}` predicate will return an array of items * which have property `name` containing "M" and property `phone` containing "1". A special * property name (`$` by default) can be used (e.g. as in `{$: "text"}`) to accept a match * against any property of the object or its nested object properties. That's equivalent to the * simple substring match with a `string` as described above. The special property name can be * overwritten, using the `anyPropertyKey` parameter. * The predicate can be negated by prefixing the string with `!`. * For example `{name: "!M"}` predicate will return an array of items which have property `name` * not containing "M". * * Note that a named property will match properties on the same level only, while the special * `$` property will match properties on the same level or deeper. E.g. an array item like * `{name: {first: 'John', last: 'Doe'}}` will **not** be matched by `{name: 'John'}`, but * **will** be matched by `{$: 'John'}`. * * - `function(value, index, array)`: A predicate function can be used to write arbitrary filters. * The function is called for each element of the array, with the element, its index, and * the entire array itself as arguments. * * The final result is an array of those elements that the predicate returned true for. * * @param {function(actual, expected)|true|undefined} comparator Comparator which is used in * determining if the expected value (from the filter expression) and actual value (from * the object in the array) should be considered a match. * * Can be one of: * * - `function(actual, expected)`: * The function will be given the object value and the predicate value to compare and * should return true if both values should be considered equal. * * - `true`: A shorthand for `function(actual, expected) { return angular.equals(actual, expected)}`. * This is essentially strict comparison of expected and actual. * * - `false|undefined`: A short hand for a function which will look for a substring match in case * insensitive way. * * Primitive values are converted to strings. Objects are not compared against primitives, * unless they have a custom `toString` method (e.g. `Date` objects). * * @param {string=} anyPropertyKey The special property name that matches against any property. * By default `$`. * * @example

Search:

Name	Phone
{{friend.name}}	{{friend.phone}}

Any:
Name only
Phone only
Equality

Name	Phone
{{friendObj.name}}	{{friendObj.phone}}

default currency symbol ($): {{amount | currency}}
custom currency identifier (USD$): {{amount | currency:"USD$"}} no fractions (0): {{amount | currency:"USD$":0}}

it('should init with 1234.56', function() { expect(element(by.id('currency-default')).getText()).toBe('$1,234.56'); expect(element(by.id('currency-custom')).getText()).toBe('USD$1,234.56'); expect(element(by.id('currency-no-fractions')).getText()).toBe('USD$1,235'); }); it('should update', function() { if (browser.params.browser == 'safari') { // Safari does not understand the minus key. See // https://github.com/angular/protractor/issues/481 return; } element(by.model('amount')).clear(); element(by.model('amount')).sendKeys('-1234'); expect(element(by.id('currency-default')).getText()).toBe('-$1,234.00'); expect(element(by.id('currency-custom')).getText()).toBe('-USD$1,234.00'); expect(element(by.id('currency-no-fractions')).getText()).toBe('-USD$1,234'); }); */ currencyFilter.$inject = ['$locale']; function currencyFilter($locale) { var formats = $locale.NUMBER_FORMATS; return function(amount, currencySymbol, fractionSize) { if (isUndefined(currencySymbol)) { currencySymbol = formats.CURRENCY_SYM; } if (isUndefined(fractionSize)) { fractionSize = formats.PATTERNS[1].maxFrac; } // if null or undefined pass it through return (amount == null) ? amount : formatNumber(amount, formats.PATTERNS[1], formats.GROUP_SEP, formats.DECIMAL_SEP, fractionSize). replace(/\u00A4/g, currencySymbol); }; } /** * @ngdoc filter * @name number * @kind function * * @description * Formats a number as text. * * If the input is null or undefined, it will just be returned. * If the input is infinite (Infinity or -Infinity), the Infinity symbol '∞' or '-∞' is returned, respectively. * If the input is not a number an empty string is returned. * * * @param {number|string} number Number to format. * @param {(number|string)=} fractionSize Number of decimal places to round the number to. * If this is not provided then the fraction size is computed from the current locale's number * formatting pattern. In the case of the default locale, it will be 3. * @returns {string} Number rounded to `fractionSize` appropriately formatted based on the current * locale (e.g., in the en_US locale it will have "." as the decimal separator and * include "," group separators after each third digit). * * @example

Enter number:
Default formatting: {{val | number}}
No fractions: {{val | number:0}}
Negative number: {{-val | number:4}}

it('should format numbers', function() { expect(element(by.id('number-default')).getText()).toBe('1,234.568'); expect(element(by.binding('val | number:0')).getText()).toBe('1,235'); expect(element(by.binding('-val | number:4')).getText()).toBe('-1,234.5679'); }); it('should update', function() { element(by.model('val')).clear(); element(by.model('val')).sendKeys('3374.333'); expect(element(by.id('number-default')).getText()).toBe('3,374.333'); expect(element(by.binding('val | number:0')).getText()).toBe('3,374'); expect(element(by.binding('-val | number:4')).getText()).toBe('-3,374.3330'); }); */ numberFilter.$inject = ['$locale']; function numberFilter($locale) { var formats = $locale.NUMBER_FORMATS; return function(number, fractionSize) { // if null or undefined pass it through return (number == null) ? number : formatNumber(number, formats.PATTERNS[0], formats.GROUP_SEP, formats.DECIMAL_SEP, fractionSize); }; } /** * Parse a number (as a string) into three components that can be used * for formatting the number. * * (Significant bits of this parse algorithm came from https://github.com/MikeMcl/big.js/) * * @param {string} numStr The number to parse * @return {object} An object describing this number, containing the following keys: * - d : an array of digits containing leading zeros as necessary * - i : the number of the digits in `d` that are to the left of the decimal point * - e : the exponent for numbers that would need more than `MAX_DIGITS` digits in `d` * */ function parse(numStr) { var exponent = 0, digits, numberOfIntegerDigits; var i, j, zeros; // Decimal point? if ((numberOfIntegerDigits = numStr.indexOf(DECIMAL_SEP)) > -1) { numStr = numStr.replace(DECIMAL_SEP, ''); } // Exponential form? if ((i = numStr.search(/e/i)) > 0) { // Work out the exponent. if (numberOfIntegerDigits < 0) numberOfIntegerDigits = i; numberOfIntegerDigits += +numStr.slice(i + 1); numStr = numStr.substring(0, i); } else if (numberOfIntegerDigits < 0) { // There was no decimal point or exponent so it is an integer. numberOfIntegerDigits = numStr.length; } // Count the number of leading zeros. for (i = 0; numStr.charAt(i) == ZERO_CHAR; i++) {/* jshint noempty: false */} if (i == (zeros = numStr.length)) { // The digits are all zero. digits = [0]; numberOfIntegerDigits = 1; } else { // Count the number of trailing zeros zeros--; while (numStr.charAt(zeros) == ZERO_CHAR) zeros--; // Trailing zeros are insignificant so ignore them numberOfIntegerDigits -= i; digits = []; // Convert string to array of digits without leading/trailing zeros. for (j = 0; i <= zeros; i++, j++) { digits[j] = +numStr.charAt(i); } } // If the number overflows the maximum allowed digits then use an exponent. if (numberOfIntegerDigits > MAX_DIGITS) { digits = digits.splice(0, MAX_DIGITS - 1); exponent = numberOfIntegerDigits - 1; numberOfIntegerDigits = 1; } return { d: digits, e: exponent, i: numberOfIntegerDigits }; } /** * Round the parsed number to the specified number of decimal places * This function changed the parsedNumber in-place */ function roundNumber(parsedNumber, fractionSize, minFrac, maxFrac) { var digits = parsedNumber.d; var fractionLen = digits.length - parsedNumber.i; // determine fractionSize if it is not specified; `+fractionSize` converts it to a number fractionSize = (isUndefined(fractionSize)) ? Math.min(Math.max(minFrac, fractionLen), maxFrac) : +fractionSize; // The index of the digit to where rounding is to occur var roundAt = fractionSize + parsedNumber.i; var digit = digits[roundAt]; if (roundAt > 0) { // Drop fractional digits beyond `roundAt` digits.splice(Math.max(parsedNumber.i, roundAt)); // Set non-fractional digits beyond `roundAt` to 0 for (var j = roundAt; j < digits.length; j++) { digits[j] = 0; } } else { // We rounded to zero so reset the parsedNumber fractionLen = Math.max(0, fractionLen); parsedNumber.i = 1; digits.length = Math.max(1, roundAt = fractionSize + 1); digits[0] = 0; for (var i = 1; i < roundAt; i++) digits[i] = 0; } if (digit >= 5) { if (roundAt - 1 < 0) { for (var k = 0; k > roundAt; k--) { digits.unshift(0); parsedNumber.i++; } digits.unshift(1); parsedNumber.i++; } else { digits[roundAt - 1]++; } } // Pad out with zeros to get the required fraction length for (; fractionLen < Math.max(0, fractionSize); fractionLen++) digits.push(0); // Do any carrying, e.g. a digit was rounded up to 10 var carry = digits.reduceRight(function(carry, d, i, digits) { d = d + carry; digits[i] = d % 10; return Math.floor(d / 10); }, 0); if (carry) { digits.unshift(carry); parsedNumber.i++; } } /** * Format a number into a string * @param {number} number The number to format * @param {{ * minFrac, // the minimum number of digits required in the fraction part of the number * maxFrac, // the maximum number of digits required in the fraction part of the number * gSize, // number of digits in each group of separated digits * lgSize, // number of digits in the last group of digits before the decimal separator * negPre, // the string to go in front of a negative number (e.g. `-` or `(`)) * posPre, // the string to go in front of a positive number * negSuf, // the string to go after a negative number (e.g. `)`) * posSuf // the string to go after a positive number * }} pattern * @param {string} groupSep The string to separate groups of number (e.g. `,`) * @param {string} decimalSep The string to act as the decimal separator (e.g. `.`) * @param {[type]} fractionSize The size of the fractional part of the number * @return {string} The number formatted as a string */ function formatNumber(number, pattern, groupSep, decimalSep, fractionSize) { if (!(isString(number) || isNumber(number)) || isNaN(number)) return ''; var isInfinity = !isFinite(number); var isZero = false; var numStr = Math.abs(number) + '', formattedText = '', parsedNumber; if (isInfinity) { formattedText = '\u221e'; } else { parsedNumber = parse(numStr); roundNumber(parsedNumber, fractionSize, pattern.minFrac, pattern.maxFrac); var digits = parsedNumber.d; var integerLen = parsedNumber.i; var exponent = parsedNumber.e; var decimals = []; isZero = digits.reduce(function(isZero, d) { return isZero && !d; }, true); // pad zeros for small numbers while (integerLen < 0) { digits.unshift(0); integerLen++; } // extract decimals digits if (integerLen > 0) { decimals = digits.splice(integerLen, digits.length); } else { decimals = digits; digits = [0]; } // format the integer digits with grouping separators var groups = []; if (digits.length >= pattern.lgSize) { groups.unshift(digits.splice(-pattern.lgSize, digits.length).join('')); } while (digits.length > pattern.gSize) { groups.unshift(digits.splice(-pattern.gSize, digits.length).join('')); } if (digits.length) { groups.unshift(digits.join('')); } formattedText = groups.join(groupSep); // append the decimal digits if (decimals.length) { formattedText += decimalSep + decimals.join(''); } if (exponent) { formattedText += 'e+' + exponent; } } if (number < 0 && !isZero) { return pattern.negPre + formattedText + pattern.negSuf; } else { return pattern.posPre + formattedText + pattern.posSuf; } } function padNumber(num, digits, trim, negWrap) { var neg = ''; if (num < 0 || (negWrap && num <= 0)) { if (negWrap) { num = -num + 1; } else { num = -num; neg = '-'; } } num = '' + num; while (num.length < digits) num = ZERO_CHAR + num; if (trim) { num = num.substr(num.length - digits); } return neg + num; } function dateGetter(name, size, offset, trim, negWrap) { offset = offset || 0; return function(date) { var value = date['get' + name](); if (offset > 0 || value > -offset) { value += offset; } if (value === 0 && offset == -12) value = 12; return padNumber(value, size, trim, negWrap); }; } function dateStrGetter(name, shortForm, standAlone) { return function(date, formats) { var value = date['get' + name](); var propPrefix = (standAlone ? 'STANDALONE' : '') + (shortForm ? 'SHORT' : ''); var get = uppercase(propPrefix + name); return formats[get][value]; }; } function timeZoneGetter(date, formats, offset) { var zone = -1 * offset; var paddedZone = (zone >= 0) ? "+" : ""; paddedZone += padNumber(Math[zone > 0 ? 'floor' : 'ceil'](zone / 60), 2) + padNumber(Math.abs(zone % 60), 2); return paddedZone; } function getFirstThursdayOfYear(year) { // 0 = index of January var dayOfWeekOnFirst = (new Date(year, 0, 1)).getDay(); // 4 = index of Thursday (+1 to account for 1st = 5) // 11 = index of *next* Thursday (+1 account for 1st = 12) return new Date(year, 0, ((dayOfWeekOnFirst <= 4) ? 5 : 12) - dayOfWeekOnFirst); } function getThursdayThisWeek(datetime) { return new Date(datetime.getFullYear(), datetime.getMonth(), // 4 = index of Thursday datetime.getDate() + (4 - datetime.getDay())); } function weekGetter(size) { return function(date) { var firstThurs = getFirstThursdayOfYear(date.getFullYear()), thisThurs = getThursdayThisWeek(date); var diff = +thisThurs - +firstThurs, result = 1 + Math.round(diff / 6.048e8); // 6.048e8 ms per week return padNumber(result, size); }; } function ampmGetter(date, formats) { return date.getHours() < 12 ? formats.AMPMS[0] : formats.AMPMS[1]; } function eraGetter(date, formats) { return date.getFullYear() <= 0 ? formats.ERAS[0] : formats.ERAS[1]; } function longEraGetter(date, formats) { return date.getFullYear() <= 0 ? formats.ERANAMES[0] : formats.ERANAMES[1]; } var DATE_FORMATS = { yyyy: dateGetter('FullYear', 4, 0, false, true), yy: dateGetter('FullYear', 2, 0, true, true), y: dateGetter('FullYear', 1, 0, false, true), MMMM: dateStrGetter('Month'), MMM: dateStrGetter('Month', true), MM: dateGetter('Month', 2, 1), M: dateGetter('Month', 1, 1), LLLL: dateStrGetter('Month', false, true), dd: dateGetter('Date', 2), d: dateGetter('Date', 1), HH: dateGetter('Hours', 2), H: dateGetter('Hours', 1), hh: dateGetter('Hours', 2, -12), h: dateGetter('Hours', 1, -12), mm: dateGetter('Minutes', 2), m: dateGetter('Minutes', 1), ss: dateGetter('Seconds', 2), s: dateGetter('Seconds', 1), // while ISO 8601 requires fractions to be prefixed with `.` or `,` // we can be just safely rely on using `sss` since we currently don't support single or two digit fractions sss: dateGetter('Milliseconds', 3), EEEE: dateStrGetter('Day'), EEE: dateStrGetter('Day', true), a: ampmGetter, Z: timeZoneGetter, ww: weekGetter(2), w: weekGetter(1), G: eraGetter, GG: eraGetter, GGG: eraGetter, GGGG: longEraGetter }; var DATE_FORMATS_SPLIT = /((?:[^yMLdHhmsaZEwG']+)|(?:'(?:[^']|'')*')|(?:E+|y+|M+|L+|d+|H+|h+|m+|s+|a|Z|G+|w+))(.*)/, NUMBER_STRING = /^\-?\d+$/; /** * @ngdoc filter * @name date * @kind function * * @description * Formats `date` to a string based on the requested `format`. * * `format` string can be composed of the following elements: * * * `'yyyy'`: 4 digit representation of year (e.g. AD 1 => 0001, AD 2010 => 2010) * * `'yy'`: 2 digit representation of year, padded (00-99). (e.g. AD 2001 => 01, AD 2010 => 10) * * `'y'`: 1 digit representation of year, e.g. (AD 1 => 1, AD 199 => 199) * * `'MMMM'`: Month in year (January-December) * * `'MMM'`: Month in year (Jan-Dec) * * `'MM'`: Month in year, padded (01-12) * * `'M'`: Month in year (1-12) * * `'LLLL'`: Stand-alone month in year (January-December) * * `'dd'`: Day in month, padded (01-31) * * `'d'`: Day in month (1-31) * * `'EEEE'`: Day in Week,(Sunday-Saturday) * * `'EEE'`: Day in Week, (Sun-Sat) * * `'HH'`: Hour in day, padded (00-23) * * `'H'`: Hour in day (0-23) * * `'hh'`: Hour in AM/PM, padded (01-12) * * `'h'`: Hour in AM/PM, (1-12) * * `'mm'`: Minute in hour, padded (00-59) * * `'m'`: Minute in hour (0-59) * * `'ss'`: Second in minute, padded (00-59) * * `'s'`: Second in minute (0-59) * * `'sss'`: Millisecond in second, padded (000-999) * * `'a'`: AM/PM marker * * `'Z'`: 4 digit (+sign) representation of the timezone offset (-1200-+1200) * * `'ww'`: Week of year, padded (00-53). Week 01 is the week with the first Thursday of the year * * `'w'`: Week of year (0-53). Week 1 is the week with the first Thursday of the year * * `'G'`, `'GG'`, `'GGG'`: The abbreviated form of the era string (e.g. 'AD') * * `'GGGG'`: The long form of the era string (e.g. 'Anno Domini') * * `format` string can also be one of the following predefined * {@link guide/i18n localizable formats}: * * * `'medium'`: equivalent to `'MMM d, y h:mm:ss a'` for en_US locale * (e.g. Sep 3, 2010 12:05:08 PM) * * `'short'`: equivalent to `'M/d/yy h:mm a'` for en_US locale (e.g. 9/3/10 12:05 PM) * * `'fullDate'`: equivalent to `'EEEE, MMMM d, y'` for en_US locale * (e.g. Friday, September 3, 2010) * * `'longDate'`: equivalent to `'MMMM d, y'` for en_US locale (e.g. September 3, 2010) * * `'mediumDate'`: equivalent to `'MMM d, y'` for en_US locale (e.g. Sep 3, 2010) * * `'shortDate'`: equivalent to `'M/d/yy'` for en_US locale (e.g. 9/3/10) * * `'mediumTime'`: equivalent to `'h:mm:ss a'` for en_US locale (e.g. 12:05:08 PM) * * `'shortTime'`: equivalent to `'h:mm a'` for en_US locale (e.g. 12:05 PM) * * `format` string can contain literal values. These need to be escaped by surrounding with single quotes (e.g. * `"h 'in the morning'"`). In order to output a single quote, escape it - i.e., two single quotes in a sequence * (e.g. `"h 'o''clock'"`). * * @param {(Date|number|string)} date Date to format either as Date object, milliseconds (string or * number) or various ISO 8601 datetime string formats (e.g. yyyy-MM-ddTHH:mm:ss.sssZ and its * shorter versions like yyyy-MM-ddTHH:mmZ, yyyy-MM-dd or yyyyMMddTHHmmssZ). If no timezone is * specified in the string input, the time is considered to be in the local timezone. * @param {string=} format Formatting rules (see Description). If not specified, * `mediumDate` is used. * @param {string=} timezone Timezone to be used for formatting. It understands UTC/GMT and the * continental US time zone abbreviations, but for general use, use a time zone offset, for * example, `'+0430'` (4 hours, 30 minutes east of the Greenwich meridian) * If not specified, the timezone of the browser will be used. * @returns {string} Formatted string or the input if input is not recognized as date/millis. * * @example {{1288323623006 | date:'medium'}}: {{1288323623006 | date:'medium'}}
{{1288323623006 | date:'yyyy-MM-dd HH:mm:ss Z'}}: {{1288323623006 | date:'yyyy-MM-dd HH:mm:ss Z'}}
{{1288323623006 | date:'MM/dd/yyyy @ h:mma'}}: {{'1288323623006' | date:'MM/dd/yyyy @ h:mma'}}
{{1288323623006 | date:"MM/dd/yyyy 'at' h:mma"}}: {{'1288323623006' | date:"MM/dd/yyyy 'at' h:mma"}}
it('should format date', function() { expect(element(by.binding("1288323623006 | date:'medium'")).getText()). toMatch(/Oct 2\d, 2010 \d{1,2}:\d{2}:\d{2} (AM|PM)/); expect(element(by.binding("1288323623006 | date:'yyyy-MM-dd HH:mm:ss Z'")).getText()). toMatch(/2010\-10\-2\d \d{2}:\d{2}:\d{2} (\-|\+)?\d{4}/); expect(element(by.binding("'1288323623006' | date:'MM/dd/yyyy @ h:mma'")).getText()). toMatch(/10\/2\d\/2010 @ \d{1,2}:\d{2}(AM|PM)/); expect(element(by.binding("'1288323623006' | date:\"MM/dd/yyyy 'at' h:mma\"")).getText()). toMatch(/10\/2\d\/2010 at \d{1,2}:\d{2}(AM|PM)/); }); */ dateFilter.$inject = ['$locale']; function dateFilter($locale) { var R_ISO8601_STR = /^(\d{4})-?(\d\d)-?(\d\d)(?:T(\d\d)(?::?(\d\d)(?::?(\d\d)(?:\.(\d+))?)?)?(Z|([+-])(\d\d):?(\d\d))?)?$/; // 1 2 3 4 5 6 7 8 9 10 11 function jsonStringToDate(string) { var match; if (match = string.match(R_ISO8601_STR)) { var date = new Date(0), tzHour = 0, tzMin = 0, dateSetter = match[8] ? date.setUTCFullYear : date.setFullYear, timeSetter = match[8] ? date.setUTCHours : date.setHours; if (match[9]) { tzHour = toInt(match[9] + match[10]); tzMin = toInt(match[9] + match[11]); } dateSetter.call(date, toInt(match[1]), toInt(match[2]) - 1, toInt(match[3])); var h = toInt(match[4] || 0) - tzHour; var m = toInt(match[5] || 0) - tzMin; var s = toInt(match[6] || 0); var ms = Math.round(parseFloat('0.' + (match[7] || 0)) * 1000); timeSetter.call(date, h, m, s, ms); return date; } return string; } return function(date, format, timezone) { var text = '', parts = [], fn, match; format = format || 'mediumDate'; format = $locale.DATETIME_FORMATS[format] || format; if (isString(date)) { date = NUMBER_STRING.test(date) ? toInt(date) : jsonStringToDate(date); } if (isNumber(date)) { date = new Date(date); } if (!isDate(date) || !isFinite(date.getTime())) { return date; } while (format) { match = DATE_FORMATS_SPLIT.exec(format); if (match) { parts = concat(parts, match, 1); format = parts.pop(); } else { parts.push(format); format = null; } } var dateTimezoneOffset = date.getTimezoneOffset(); if (timezone) { dateTimezoneOffset = timezoneToOffset(timezone, dateTimezoneOffset); date = convertTimezoneToLocal(date, timezone, true); } forEach(parts, function(value) { fn = DATE_FORMATS[value]; text += fn ? fn(date, $locale.DATETIME_FORMATS, dateTimezoneOffset) : value === "''" ? "'" : value.replace(/(^'|'$)/g, '').replace(/''/g, "'"); }); return text; }; } /** * @ngdoc filter * @name json * @kind function * * @description * Allows you to convert a JavaScript object into JSON string. * * This filter is mostly useful for debugging. When using the double curly {{value}} notation * the binding is automatically converted to JSON. * * @param {*} object Any JavaScript object (including arrays and primitive types) to filter. * @param {number=} spacing The number of spaces to use per indentation, defaults to 2. * @returns {string} JSON string. * * * @example

{{ {'name':'value'} | json }}

{{ {'name':'value'} | json:4 }}

it('should jsonify filtered objects', function() { expect(element(by.id('default-spacing')).getText()).toMatch(/\{\n "name": ?"value"\n}/); expect(element(by.id('custom-spacing')).getText()).toMatch(/\{\n "name": ?"value"\n}/); }); * */ function jsonFilter() { return function(object, spacing) { if (isUndefined(spacing)) { spacing = 2; } return toJson(object, spacing); }; } /** * @ngdoc filter * @name lowercase * @kind function * @description * Converts string to lowercase. * @see angular.lowercase */ var lowercaseFilter = valueFn(lowercase); /** * @ngdoc filter * @name uppercase * @kind function * @description * Converts string to uppercase. * @see angular.uppercase */ var uppercaseFilter = valueFn(uppercase); /** * @ngdoc filter * @name limitTo * @kind function * * @description * Creates a new array or string containing only a specified number of elements. The elements are * taken from either the beginning or the end of the source array, string or number, as specified by * the value and sign (positive or negative) of `limit`. Other array-like objects are also supported * (e.g. array subclasses, NodeLists, jqLite/jQuery collections etc). If a number is used as input, * it is converted to a string. * * @param {Array|ArrayLike|string|number} input - Array/array-like, string or number to be limited. * @param {string|number} limit - The length of the returned array or string. If the `limit` number * is positive, `limit` number of items from the beginning of the source array/string are copied. * If the number is negative, `limit` number of items from the end of the source array/string * are copied. The `limit` will be trimmed if it exceeds `array.length`. If `limit` is undefined, * the input will be returned unchanged. * @param {(string|number)=} begin - Index at which to begin limitation. As a negative index, * `begin` indicates an offset from the end of `input`. Defaults to `0`. * @returns {Array|string} A new sub-array or substring of length `limit` or less if the input had * less than `limit` elements. * * @example

Limit {{numbers}} to:

Output numbers: {{ numbers | limitTo:numLimit }}

Limit {{letters}} to:

Output letters: {{ letters | limitTo:letterLimit }}

Limit {{longNumber}} to:

Output long number: {{ longNumber | limitTo:longNumberLimit }}

Name	Phone Number	Age
{{friend.name}}	{{friend.phone}}	{{friend.age}}

angular.module('orderByExample1', []) .controller('ExampleController', ['$scope', function($scope) { $scope.friends = [ {name: 'John', phone: '555-1212', age: 10}, {name: 'Mary', phone: '555-9876', age: 19}, {name: 'Mike', phone: '555-4321', age: 21}, {name: 'Adam', phone: '555-5678', age: 35}, {name: 'Julie', phone: '555-8765', age: 29} ]; }]); .friends { border-collapse: collapse; } .friends th { border-bottom: 1px solid; } .friends td, .friends th { border-left: 1px solid; padding: 5px 10px; } .friends td:first-child, .friends th:first-child { border-left: none; } // Element locators var names = element.all(by.repeater('friends').column('friend.name')); it('should sort friends by age in reverse order', function() { expect(names.get(0).getText()).toBe('Adam'); expect(names.get(1).getText()).toBe('Julie'); expect(names.get(2).getText()).toBe('Mike'); expect(names.get(3).getText()).toBe('Mary'); expect(names.get(4).getText()).toBe('John'); }); *

* * @example * ### Changing parameters dynamically * * All parameters can be changed dynamically. The next example shows how you can make the columns of * a table sortable, by binding the `expression` and `reverse` parameters to scope properties. *

Sort by = {{propertyName}}; reverse = {{reverse}}


{{friend.name}}	{{friend.phone}}	{{friend.age}}

angular.module('orderByExample2', []) .controller('ExampleController', ['$scope', function($scope) { var friends = [ {name: 'John', phone: '555-1212', age: 10}, {name: 'Mary', phone: '555-9876', age: 19}, {name: 'Mike', phone: '555-4321', age: 21}, {name: 'Adam', phone: '555-5678', age: 35}, {name: 'Julie', phone: '555-8765', age: 29} ]; $scope.propertyName = 'age'; $scope.reverse = true; $scope.friends = friends; $scope.sortBy = function(propertyName) { $scope.reverse = ($scope.propertyName === propertyName) ? !$scope.reverse : false; $scope.propertyName = propertyName; }; }]); .friends { border-collapse: collapse; } .friends th { border-bottom: 1px solid; } .friends td, .friends th { border-left: 1px solid; padding: 5px 10px; } .friends td:first-child, .friends th:first-child { border-left: none; } .sortorder:after { content: '\25b2'; // BLACK UP-POINTING TRIANGLE } .sortorder.reverse:after { content: '\25bc'; // BLACK DOWN-POINTING TRIANGLE } // Element locators var unsortButton = element(by.partialButtonText('unsorted')); var nameHeader = element(by.partialButtonText('Name')); var phoneHeader = element(by.partialButtonText('Phone')); var ageHeader = element(by.partialButtonText('Age')); var firstName = element(by.repeater('friends').column('friend.name').row(0)); var lastName = element(by.repeater('friends').column('friend.name').row(4)); it('should sort friends by some property, when clicking on the column header', function() { expect(firstName.getText()).toBe('Adam'); expect(lastName.getText()).toBe('John'); phoneHeader.click(); expect(firstName.getText()).toBe('John'); expect(lastName.getText()).toBe('Mary'); nameHeader.click(); expect(firstName.getText()).toBe('Adam'); expect(lastName.getText()).toBe('Mike'); ageHeader.click(); expect(firstName.getText()).toBe('John'); expect(lastName.getText()).toBe('Adam'); }); it('should sort friends in reverse order, when clicking on the same column', function() { expect(firstName.getText()).toBe('Adam'); expect(lastName.getText()).toBe('John'); ageHeader.click(); expect(firstName.getText()).toBe('John'); expect(lastName.getText()).toBe('Adam'); ageHeader.click(); expect(firstName.getText()).toBe('Adam'); expect(lastName.getText()).toBe('John'); }); it('should restore the original order, when clicking "Set to unsorted"', function() { expect(firstName.getText()).toBe('Adam'); expect(lastName.getText()).toBe('John'); unsortButton.click(); expect(firstName.getText()).toBe('John'); expect(lastName.getText()).toBe('Julie'); }); *

* * @example * ### Using `orderBy` inside a controller * * It is also possible to call the `orderBy` filter manually, by injecting `orderByFilter`, and * calling it with the desired parameters. (Alternatively, you could inject the `$filter` factory * and retrieve the `orderBy` filter with `$filter('orderBy')`.) *

Sort by = {{propertyName}}; reverse = {{reverse}}


{{friend.name}}	{{friend.phone}}	{{friend.age}}

angular.module('orderByExample3', []) .controller('ExampleController', ['$scope', 'orderByFilter', function($scope, orderBy) { var friends = [ {name: 'John', phone: '555-1212', age: 10}, {name: 'Mary', phone: '555-9876', age: 19}, {name: 'Mike', phone: '555-4321', age: 21}, {name: 'Adam', phone: '555-5678', age: 35}, {name: 'Julie', phone: '555-8765', age: 29} ]; $scope.propertyName = 'age'; $scope.reverse = true; $scope.friends = orderBy(friends, $scope.propertyName, $scope.reverse); $scope.sortBy = function(propertyName) { $scope.reverse = (propertyName !== null && $scope.propertyName === propertyName) ? !$scope.reverse : false; $scope.propertyName = propertyName; $scope.friends = orderBy(friends, $scope.propertyName, $scope.reverse); }; }]); .friends { border-collapse: collapse; } .friends th { border-bottom: 1px solid; } .friends td, .friends th { border-left: 1px solid; padding: 5px 10px; } .friends td:first-child, .friends th:first-child { border-left: none; } .sortorder:after { content: '\25b2'; // BLACK UP-POINTING TRIANGLE } .sortorder.reverse:after { content: '\25bc'; // BLACK DOWN-POINTING TRIANGLE } // Element locators var unsortButton = element(by.partialButtonText('unsorted')); var nameHeader = element(by.partialButtonText('Name')); var phoneHeader = element(by.partialButtonText('Phone')); var ageHeader = element(by.partialButtonText('Age')); var firstName = element(by.repeater('friends').column('friend.name').row(0)); var lastName = element(by.repeater('friends').column('friend.name').row(4)); it('should sort friends by some property, when clicking on the column header', function() { expect(firstName.getText()).toBe('Adam'); expect(lastName.getText()).toBe('John'); phoneHeader.click(); expect(firstName.getText()).toBe('John'); expect(lastName.getText()).toBe('Mary'); nameHeader.click(); expect(firstName.getText()).toBe('Adam'); expect(lastName.getText()).toBe('Mike'); ageHeader.click(); expect(firstName.getText()).toBe('John'); expect(lastName.getText()).toBe('Adam'); }); it('should sort friends in reverse order, when clicking on the same column', function() { expect(firstName.getText()).toBe('Adam'); expect(lastName.getText()).toBe('John'); ageHeader.click(); expect(firstName.getText()).toBe('John'); expect(lastName.getText()).toBe('Adam'); ageHeader.click(); expect(firstName.getText()).toBe('Adam'); expect(lastName.getText()).toBe('John'); }); it('should restore the original order, when clicking "Set to unsorted"', function() { expect(firstName.getText()).toBe('Adam'); expect(lastName.getText()).toBe('John'); unsortButton.click(); expect(firstName.getText()).toBe('John'); expect(lastName.getText()).toBe('Julie'); }); *

* * @example * ### Using a custom comparator * * If you have very specific requirements about the way items are sorted, you can pass your own * comparator function. For example, you might need to compare some strings in a locale-sensitive * way. (When specifying a custom comparator, you also need to pass a value for the `reverse` * argument - passing `false` retains the default sorting order, i.e. ascending.) *

Locale-sensitive Comparator

Name	Favorite Letter
{{friend.name}}	{{friend.favoriteLetter}}

Default Comparator

Name	Favorite Letter
{{friend.name}}	{{friend.favoriteLetter}}

angular.module('orderByExample4', []) .controller('ExampleController', ['$scope', function($scope) { $scope.friends = [ {name: 'John', favoriteLetter: 'Ä'}, {name: 'Mary', favoriteLetter: 'Ü'}, {name: 'Mike', favoriteLetter: 'Ö'}, {name: 'Adam', favoriteLetter: 'H'}, {name: 'Julie', favoriteLetter: 'Z'} ]; $scope.localeSensitiveComparator = function(v1, v2) { // If we don't get strings, just compare by index if (v1.type !== 'string' || v2.type !== 'string') { return (v1.index < v2.index) ? -1 : 1; } // Compare strings alphabetically, taking locale into account return v1.value.localeCompare(v2.value); }; }]); .friends-container { display: inline-block; margin: 0 30px; } .friends { border-collapse: collapse; } .friends th { border-bottom: 1px solid; } .friends td, .friends th { border-left: 1px solid; padding: 5px 10px; } .friends td:first-child, .friends th:first-child { border-left: none; } // Element locators var container = element(by.css('.custom-comparator')); var names = container.all(by.repeater('friends').column('friend.name')); it('should sort friends by favorite letter (in correct alphabetical order)', function() { expect(names.get(0).getText()).toBe('John'); expect(names.get(1).getText()).toBe('Adam'); expect(names.get(2).getText()).toBe('Mike'); expect(names.get(3).getText()).toBe('Mary'); expect(names.get(4).getText()).toBe('Julie'); }); * */ orderByFilter.$inject = ['$parse']; function orderByFilter($parse) { return function(array, sortPredicate, reverseOrder, compareFn) { if (array == null) return array; if (!isArrayLike(array)) { throw minErr('orderBy')('notarray', 'Expected array but received: {0}', array); } if (!isArray(sortPredicate)) { sortPredicate = [sortPredicate]; } if (sortPredicate.length === 0) { sortPredicate = ['+']; } var predicates = processPredicates(sortPredicate); var descending = reverseOrder ? -1 : 1; // Define the `compare()` function. Use a default comparator if none is specified. var compare = isFunction(compareFn) ? compareFn : defaultCompare; // The next three lines are a version of a Swartzian Transform idiom from Perl // (sometimes called the Decorate-Sort-Undecorate idiom) // See https://en.wikipedia.org/wiki/Schwartzian_transform var compareValues = Array.prototype.map.call(array, getComparisonObject); compareValues.sort(doComparison); array = compareValues.map(function(item) { return item.value; }); return array; function getComparisonObject(value, index) { // NOTE: We are adding an extra `tieBreaker` value based on the element's index. // This will be used to keep the sort stable when none of the input predicates can // distinguish between two elements. return { value: value, tieBreaker: {value: index, type: 'number', index: index}, predicateValues: predicates.map(function(predicate) { return getPredicateValue(predicate.get(value), index); }) }; } function doComparison(v1, v2) { for (var i = 0, ii = predicates.length; i < ii; i++) { var result = compare(v1.predicateValues[i], v2.predicateValues[i]); if (result) { return result * predicates[i].descending * descending; } } return compare(v1.tieBreaker, v2.tieBreaker) * descending; } }; function processPredicates(sortPredicates) { return sortPredicates.map(function(predicate) { var descending = 1, get = identity; if (isFunction(predicate)) { get = predicate; } else if (isString(predicate)) { if ((predicate.charAt(0) == '+' || predicate.charAt(0) == '-')) { descending = predicate.charAt(0) == '-' ? -1 : 1; predicate = predicate.substring(1); } if (predicate !== '') { get = $parse(predicate); if (get.constant) { var key = get(); get = function(value) { return value[key]; }; } } } return {get: get, descending: descending}; }); } function isPrimitive(value) { switch (typeof value) { case 'number': /* falls through */ case 'boolean': /* falls through */ case 'string': return true; default: return false; } } function objectValue(value) { // If `valueOf` is a valid function use that if (isFunction(value.valueOf)) { value = value.valueOf(); if (isPrimitive(value)) return value; } // If `toString` is a valid function and not the one from `Object.prototype` use that if (hasCustomToString(value)) { value = value.toString(); if (isPrimitive(value)) return value; } return value; } function getPredicateValue(value, index) { var type = typeof value; if (value === null) { type = 'string'; value = 'null'; } else if (type === 'object') { value = objectValue(value); } return {value: value, type: type, index: index}; } function defaultCompare(v1, v2) { var result = 0; var type1 = v1.type; var type2 = v2.type; if (type1 === type2) { var value1 = v1.value; var value2 = v2.value; if (type1 === 'string') { // Compare strings case-insensitively value1 = value1.toLowerCase(); value2 = value2.toLowerCase(); } else if (type1 === 'object') { // For basic objects, use the position of the object // in the collection instead of the value if (isObject(value1)) value1 = v1.index; if (isObject(value2)) value2 = v2.index; } if (value1 !== value2) { result = value1 < value2 ? -1 : 1; } } else { result = type1 < type2 ? -1 : 1; } return result; } } function ngDirective(directive) { if (isFunction(directive)) { directive = { link: directive }; } directive.restrict = directive.restrict || 'AC'; return valueFn(directive); } /** * @ngdoc directive * @name a * @restrict E * * @description * Modifies the default behavior of the html A tag so that the default action is prevented when * the href attribute is empty. * * This change permits the easy creation of action links with the `ngClick` directive * without changing the location or causing page reloads, e.g.: * `Add Item` */ var htmlAnchorDirective = valueFn({ restrict: 'E', compile: function(element, attr) { if (!attr.href && !attr.xlinkHref) { return function(scope, element) { // If the linked element is not an anchor tag anymore, do nothing if (element[0].nodeName.toLowerCase() !== 'a') return; // SVGAElement does not use the href attribute, but rather the 'xlinkHref' attribute. var href = toString.call(element.prop('href')) === '[object SVGAnimatedString]' ? 'xlink:href' : 'href'; element.on('click', function(event) { // if we have no href url, then don't navigate anywhere. if (!element.attr(href)) { event.preventDefault(); } }); }; } } }); /** * @ngdoc directive * @name ngHref * @restrict A * @priority 99 * * @description * Using Angular markup like `{{hash}}` in an href attribute will * make the link go to the wrong URL if the user clicks it before * Angular has a chance to replace the `{{hash}}` markup with its * value. Until Angular replaces the markup the link will be broken * and will most likely return a 404 error. The `ngHref` directive * solves this problem. * * The wrong way to write it: * ```html * link1 * ``` * * The correct way to write it: * ```html * link1 * ``` * * @element A * @param {template} ngHref any string which can contain `{{}}` markup. * * @example * This example shows various combinations of `href`, `ng-href` and `ng-click` attributes * in links and their different behaviors:
link 1 (link, don't reload)
link 2 (link, don't reload)
link 3 (link, reload!)
anchor (link, don't reload)
anchor (no link)
link (link, change location) it('should execute ng-click but not reload when href without value', function() { element(by.id('link-1')).click(); expect(element(by.model('value')).getAttribute('value')).toEqual('1'); expect(element(by.id('link-1')).getAttribute('href')).toBe(''); }); it('should execute ng-click but not reload when href empty string', function() { element(by.id('link-2')).click(); expect(element(by.model('value')).getAttribute('value')).toEqual('2'); expect(element(by.id('link-2')).getAttribute('href')).toBe(''); }); it('should execute ng-click and change url when ng-href specified', function() { expect(element(by.id('link-3')).getAttribute('href')).toMatch(/\/123$/); element(by.id('link-3')).click(); // At this point, we navigate away from an Angular page, so we need // to use browser.driver to get the base webdriver. browser.wait(function() { return browser.driver.getCurrentUrl().then(function(url) { return url.match(/\/123$/); }); }, 5000, 'page should navigate to /123'); }); it('should execute ng-click but not reload when href empty string and name specified', function() { element(by.id('link-4')).click(); expect(element(by.model('value')).getAttribute('value')).toEqual('4'); expect(element(by.id('link-4')).getAttribute('href')).toBe(''); }); it('should execute ng-click but not reload when no href but name specified', function() { element(by.id('link-5')).click(); expect(element(by.model('value')).getAttribute('value')).toEqual('5'); expect(element(by.id('link-5')).getAttribute('href')).toBe(null); }); it('should only change url when only ng-href', function() { element(by.model('value')).clear(); element(by.model('value')).sendKeys('6'); expect(element(by.id('link-6')).getAttribute('href')).toMatch(/\/6$/); element(by.id('link-6')).click(); // At this point, we navigate away from an Angular page, so we need // to use browser.driver to get the base webdriver. browser.wait(function() { return browser.driver.getCurrentUrl().then(function(url) { return url.match(/\/6$/); }); }, 5000, 'page should navigate to /6'); }); */ /** * @ngdoc directive * @name ngSrc * @restrict A * @priority 99 * * @description * Using Angular markup like `{{hash}}` in a `src` attribute doesn't * work right: The browser will fetch from the URL with the literal * text `{{hash}}` until Angular replaces the expression inside * `{{hash}}`. The `ngSrc` directive solves this problem. * * The buggy way to write it: * ```html *

* ``` * * The correct way to write it: * ```html *

* ``` * * @element IMG * @param {template} ngSrc any string which can contain `{{}}` markup. */ /** * @ngdoc directive * @name ngSrcset * @restrict A * @priority 99 * * @description * Using Angular markup like `{{hash}}` in a `srcset` attribute doesn't * work right: The browser will fetch from the URL with the literal * text `{{hash}}` until Angular replaces the expression inside * `{{hash}}`. The `ngSrcset` directive solves this problem. * * The buggy way to write it: * ```html *

* ``` * * The correct way to write it: * ```html *

* ``` * * @element IMG * @param {template} ngSrcset any string which can contain `{{}}` markup. */ /** * @ngdoc directive * @name ngDisabled * @restrict A * @priority 100 * * @description * * This directive sets the `disabled` attribute on the element if the * {@link guide/expression expression} inside `ngDisabled` evaluates to truthy. * * A special directive is necessary because we cannot use interpolation inside the `disabled` * attribute. See the {@link guide/interpolation interpolation guide} for more info. * * @example Click me to toggle:
it('should toggle button', function() { expect(element(by.css('button')).getAttribute('disabled')).toBeFalsy(); element(by.model('checked')).click(); expect(element(by.css('button')).getAttribute('disabled')).toBeTruthy(); }); * * @element INPUT * @param {expression} ngDisabled If the {@link guide/expression expression} is truthy, * then the `disabled` attribute will be set on the element */ /** * @ngdoc directive * @name ngChecked * @restrict A * @priority 100 * * @description * Sets the `checked` attribute on the element, if the expression inside `ngChecked` is truthy. * * Note that this directive should not be used together with {@link ngModel `ngModel`}, * as this can lead to unexpected behavior. * * A special directive is necessary because we cannot use interpolation inside the `checked` * attribute. See the {@link guide/interpolation interpolation guide} for more info. * * @example Check me to check both:
it('should check both checkBoxes', function() { expect(element(by.id('checkSlave')).getAttribute('checked')).toBeFalsy(); element(by.model('master')).click(); expect(element(by.id('checkSlave')).getAttribute('checked')).toBeTruthy(); }); * * @element INPUT * @param {expression} ngChecked If the {@link guide/expression expression} is truthy, * then the `checked` attribute will be set on the element */ /** * @ngdoc directive * @name ngReadonly * @restrict A * @priority 100 * * @description * * Sets the `readonly` attribute on the element, if the expression inside `ngReadonly` is truthy. * Note that `readonly` applies only to `input` elements with specific types. [See the input docs on * MDN](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input#attr-readonly) for more information. * * A special directive is necessary because we cannot use interpolation inside the `readonly` * attribute. See the {@link guide/interpolation interpolation guide} for more info. * * @example Check me to make text readonly:
it('should toggle readonly attr', function() { expect(element(by.css('[type="text"]')).getAttribute('readonly')).toBeFalsy(); element(by.model('checked')).click(); expect(element(by.css('[type="text"]')).getAttribute('readonly')).toBeTruthy(); }); * * @element INPUT * @param {expression} ngReadonly If the {@link guide/expression expression} is truthy, * then special attribute "readonly" will be set on the element */ /** * @ngdoc directive * @name ngSelected * @restrict A * @priority 100 * * @description * * Sets the `selected` attribute on the element, if the expression inside `ngSelected` is truthy. * * A special directive is necessary because we cannot use interpolation inside the `selected` * attribute. See the {@link guide/interpolation interpolation guide} for more info. * *

* **Note:** `ngSelected` does not interact with the `select` and `ngModel` directives, it only * sets the `selected` attribute on the element. If you are using `ngModel` on the select, you * should not use `ngSelected` on the options, as `ngModel` will set the select value and * selected options. *

* * @example Check me to select:
it('should select Greetings!', function() { expect(element(by.id('greet')).getAttribute('selected')).toBeFalsy(); element(by.model('selected')).click(); expect(element(by.id('greet')).getAttribute('selected')).toBeTruthy(); }); * * @element OPTION * @param {expression} ngSelected If the {@link guide/expression expression} is truthy, * then special attribute "selected" will be set on the element */ /** * @ngdoc directive * @name ngOpen * @restrict A * @priority 100 * * @description * * Sets the `open` attribute on the element, if the expression inside `ngOpen` is truthy. * * A special directive is necessary because we cannot use interpolation inside the `open` * attribute. See the {@link guide/interpolation interpolation guide} for more info. * * ## A note about browser compatibility * * Edge, Firefox, and Internet Explorer do not support the `details` element, it is * recommended to use {@link ng.ngShow} and {@link ng.ngHide} instead. * * @example Check me check multiple:

Show/Hide me

it('should toggle open', function() { expect(element(by.id('details')).getAttribute('open')).toBeFalsy(); element(by.model('open')).click(); expect(element(by.id('details')).getAttribute('open')).toBeTruthy(); }); * * @element DETAILS * @param {expression} ngOpen If the {@link guide/expression expression} is truthy, * then special attribute "open" will be set on the element */ var ngAttributeAliasDirectives = {}; // boolean attrs are evaluated forEach(BOOLEAN_ATTR, function(propName, attrName) { // binding to multiple is not supported if (propName == "multiple") return; function defaultLinkFn(scope, element, attr) { scope.$watch(attr[normalized], function ngBooleanAttrWatchAction(value) { attr.$set(attrName, !!value); }); } var normalized = directiveNormalize('ng-' + attrName); var linkFn = defaultLinkFn; if (propName === 'checked') { linkFn = function(scope, element, attr) { // ensuring ngChecked doesn't interfere with ngModel when both are set on the same input if (attr.ngModel !== attr[normalized]) { defaultLinkFn(scope, element, attr); } }; } ngAttributeAliasDirectives[normalized] = function() { return { restrict: 'A', priority: 100, link: linkFn }; }; }); // aliased input attrs are evaluated forEach(ALIASED_ATTR, function(htmlAttr, ngAttr) { ngAttributeAliasDirectives[ngAttr] = function() { return { priority: 100, link: function(scope, element, attr) { //special case ngPattern when a literal regular expression value //is used as the expression (this way we don't have to watch anything). if (ngAttr === "ngPattern" && attr.ngPattern.charAt(0) == "/") { var match = attr.ngPattern.match(REGEX_STRING_REGEXP); if (match) { attr.$set("ngPattern", new RegExp(match[1], match[2])); return; } } scope.$watch(attr[ngAttr], function ngAttrAliasWatchAction(value) { attr.$set(ngAttr, value); }); } }; }; }); // ng-src, ng-srcset, ng-href are interpolated forEach(['src', 'srcset', 'href'], function(attrName) { var normalized = directiveNormalize('ng-' + attrName); ngAttributeAliasDirectives[normalized] = function() { return { priority: 99, // it needs to run after the attributes are interpolated link: function(scope, element, attr) { var propName = attrName, name = attrName; if (attrName === 'href' && toString.call(element.prop('href')) === '[object SVGAnimatedString]') { name = 'xlinkHref'; attr.$attr[name] = 'xlink:href'; propName = null; } attr.$observe(normalized, function(value) { if (!value) { if (attrName === 'href') { attr.$set(name, null); } return; } attr.$set(name, value); // on IE, if "ng:src" directive declaration is used and "src" attribute doesn't exist // then calling element.setAttribute('src', 'foo') doesn't do anything, so we need // to set the property as well to achieve the desired effect. // we use attr[attrName] value since $set can sanitize the url. if (msie && propName) element.prop(propName, attr[name]); }); } }; }; }); /* global -nullFormCtrl, -SUBMITTED_CLASS, addSetValidityMethod: true */ var nullFormCtrl = { $addControl: noop, $$renameControl: nullFormRenameControl, $removeControl: noop, $setValidity: noop, $setDirty: noop, $setPristine: noop, $setSubmitted: noop }, SUBMITTED_CLASS = 'ng-submitted'; function nullFormRenameControl(control, name) { control.$name = name; } /** * @ngdoc type * @name form.FormController * * @property {boolean} $pristine True if user has not interacted with the form yet. * @property {boolean} $dirty True if user has already interacted with the form. * @property {boolean} $valid True if all of the containing forms and controls are valid. * @property {boolean} $invalid True if at least one containing control or form is invalid. * @property {boolean} $pending True if at least one containing control or form is pending. * @property {boolean} $submitted True if user has submitted the form even if its invalid. * * @property {Object} $error Is an object hash, containing references to controls or * forms with failing validators, where: * * - keys are validation tokens (error names), * - values are arrays of controls or forms that have a failing validator for given error name. * * Built-in validation tokens: * * - `email` * - `max` * - `maxlength` * - `min` * - `minlength` * - `number` * - `pattern` * - `required` * - `url` * - `date` * - `datetimelocal` * - `time` * - `week` * - `month` * * @description * `FormController` keeps track of all its controls and nested forms as well as the state of them, * such as being valid/invalid or dirty/pristine. * * Each {@link ng.directive:form form} directive creates an instance * of `FormController`. * */ //asks for $scope to fool the BC controller module FormController.$inject = ['$element', '$attrs', '$scope', '$animate', '$interpolate']; function FormController(element, attrs, $scope, $animate, $interpolate) { var form = this, controls = []; // init state form.$error = {}; form.$$success = {}; form.$pending = undefined; form.$name = $interpolate(attrs.name || attrs.ngForm || '')($scope); form.$dirty = false; form.$pristine = true; form.$valid = true; form.$invalid = false; form.$submitted = false; form.$$parentForm = nullFormCtrl; /** * @ngdoc method * @name form.FormController#$rollbackViewValue * * @description * Rollback all form controls pending updates to the `$modelValue`. * * Updates may be pending by a debounced event or because the input is waiting for a some future * event defined in `ng-model-options`. This method is typically needed by the reset button of * a form that uses `ng-model-options` to pend updates. */ form.$rollbackViewValue = function() { forEach(controls, function(control) { control.$rollbackViewValue(); }); }; /** * @ngdoc method * @name form.FormController#$commitViewValue * * @description * Commit all form controls pending updates to the `$modelValue`. * * Updates may be pending by a debounced event or because the input is waiting for a some future * event defined in `ng-model-options`. This method is rarely needed as `NgModelController` * usually handles calling this in response to input events. */ form.$commitViewValue = function() { forEach(controls, function(control) { control.$commitViewValue(); }); }; /** * @ngdoc method * @name form.FormController#$addControl * @param {object} control control object, either a {@link form.FormController} or an * {@link ngModel.NgModelController} * * @description * Register a control with the form. Input elements using ngModelController do this automatically * when they are linked. * * Note that the current state of the control will not be reflected on the new parent form. This * is not an issue with normal use, as freshly compiled and linked controls are in a `$pristine` * state. * * However, if the method is used programmatically, for example by adding dynamically created controls, * or controls that have been previously removed without destroying their corresponding DOM element, * it's the developers responsibility to make sure the current state propagates to the parent form. * * For example, if an input control is added that is already `$dirty` and has `$error` properties, * calling `$setDirty()` and `$validate()` afterwards will propagate the state to the parent form. */ form.$addControl = function(control) { // Breaking change - before, inputs whose name was "hasOwnProperty" were quietly ignored // and not added to the scope. Now we throw an error. assertNotHasOwnProperty(control.$name, 'input'); controls.push(control); if (control.$name) { form[control.$name] = control; } control.$$parentForm = form; }; // Private API: rename a form control form.$$renameControl = function(control, newName) { var oldName = control.$name; if (form[oldName] === control) { delete form[oldName]; } form[newName] = control; control.$name = newName; }; /** * @ngdoc method * @name form.FormController#$removeControl * @param {object} control control object, either a {@link form.FormController} or an * {@link ngModel.NgModelController} * * @description * Deregister a control from the form. * * Input elements using ngModelController do this automatically when they are destroyed. * * Note that only the removed control's validation state (`$errors`etc.) will be removed from the * form. `$dirty`, `$submitted` states will not be changed, because the expected behavior can be * different from case to case. For example, removing the only `$dirty` control from a form may or * may not mean that the form is still `$dirty`. */ form.$removeControl = function(control) { if (control.$name && form[control.$name] === control) { delete form[control.$name]; } forEach(form.$pending, function(value, name) { form.$setValidity(name, null, control); }); forEach(form.$error, function(value, name) { form.$setValidity(name, null, control); }); forEach(form.$$success, function(value, name) { form.$setValidity(name, null, control); }); arrayRemove(controls, control); control.$$parentForm = nullFormCtrl; }; /** * @ngdoc method * @name form.FormController#$setValidity * * @description * Sets the validity of a form control. * * This method will also propagate to parent forms. */ addSetValidityMethod({ ctrl: this, $element: element, set: function(object, property, controller) { var list = object[property]; if (!list) { object[property] = [controller]; } else { var index = list.indexOf(controller); if (index === -1) { list.push(controller); } } }, unset: function(object, property, controller) { var list = object[property]; if (!list) { return; } arrayRemove(list, controller); if (list.length === 0) { delete object[property]; } }, $animate: $animate }); /** * @ngdoc method * @name form.FormController#$setDirty * * @description * Sets the form to a dirty state. * * This method can be called to add the 'ng-dirty' class and set the form to a dirty * state (ng-dirty class). This method will also propagate to parent forms. */ form.$setDirty = function() { $animate.removeClass(element, PRISTINE_CLASS); $animate.addClass(element, DIRTY_CLASS); form.$dirty = true; form.$pristine = false; form.$$parentForm.$setDirty(); }; /** * @ngdoc method * @name form.FormController#$setPristine * * @description * Sets the form to its pristine state. * * This method can be called to remove the 'ng-dirty' class and set the form to its pristine * state (ng-pristine class). This method will also propagate to all the controls contained * in this form. * * Setting a form back to a pristine state is often useful when we want to 'reuse' a form after * saving or resetting it. */ form.$setPristine = function() { $animate.setClass(element, PRISTINE_CLASS, DIRTY_CLASS + ' ' + SUBMITTED_CLASS); form.$dirty = false; form.$pristine = true; form.$submitted = false; forEach(controls, function(control) { control.$setPristine(); }); }; /** * @ngdoc method * @name form.FormController#$setUntouched * * @description * Sets the form to its untouched state. * * This method can be called to remove the 'ng-touched' class and set the form controls to their * untouched state (ng-untouched class). * * Setting a form controls back to their untouched state is often useful when setting the form * back to its pristine state. */ form.$setUntouched = function() { forEach(controls, function(control) { control.$setUntouched(); }); }; /** * @ngdoc method * @name form.FormController#$setSubmitted * * @description * Sets the form to its submitted state. */ form.$setSubmitted = function() { $animate.addClass(element, SUBMITTED_CLASS); form.$submitted = true; form.$$parentForm.$setSubmitted(); }; } /** * @ngdoc directive * @name ngForm * @restrict EAC * * @description * Nestable alias of {@link ng.directive:form `form`} directive. HTML * does not allow nesting of form elements. It is useful to nest forms, for example if the validity of a * sub-group of controls needs to be determined. * * Note: the purpose of `ngForm` is to group controls, * but not to be a replacement for the `

` tag with all of its capabilities * (e.g. posting to the server, ...). * * @param {string=} ngForm|name Name of the form. If specified, the form controller will be published into * related scope, under this name. * */ /** * @ngdoc directive * @name form * @restrict E * * @description * Directive that instantiates * {@link form.FormController FormController}. * * If the `name` attribute is specified, the form controller is published onto the current scope under * this name. * * # Alias: {@link ng.directive:ngForm `ngForm`} * * In Angular, forms can be nested. This means that the outer form is valid when all of the child * forms are valid as well. However, browsers do not allow nesting of `` elements, so * Angular provides the {@link ng.directive:ngForm `ngForm`} directive, which behaves identically to * `form` but can be nested. Nested forms can be useful, for example, if the validity of a sub-group * of controls needs to be determined. * * # CSS classes * - `ng-valid` is set if the form is valid. * - `ng-invalid` is set if the form is invalid. * - `ng-pending` is set if the form is pending. * - `ng-pristine` is set if the form is pristine. * - `ng-dirty` is set if the form is dirty. * - `ng-submitted` is set if the form was submitted. * * Keep in mind that ngAnimate can detect each of these classes when added and removed. * * * # Submitting a form and preventing the default action * * Since the role of forms in client-side Angular applications is different than in classical * roundtrip apps, it is desirable for the browser not to translate the form submission into a full * page reload that sends the data to the server. Instead some javascript logic should be triggered * to handle the form submission in an application-specific way. * * For this reason, Angular prevents the default action (form submission to the server) unless the * `` element has an `action` attribute specified. * * You can use one of the following two ways to specify what javascript method should be called when * a form is submitted: * * - {@link ng.directive:ngSubmit ngSubmit} directive on the form element * - {@link ng.directive:ngClick ngClick} directive on the first * button or input field of type submit (input[type=submit]) * * To prevent double execution of the handler, use only one of the {@link ng.directive:ngSubmit ngSubmit} * or {@link ng.directive:ngClick ngClick} directives. * This is because of the following form submission rules in the HTML specification: * * - If a form has only one input field then hitting enter in this field triggers form submit * (`ngSubmit`) * - if a form has 2+ input fields and no buttons or input[type=submit] then hitting enter * doesn't trigger submit * - if a form has one or more input fields and one or more buttons or input[type=submit] then * hitting enter in any of the input fields will trigger the click handler on the *first* button or * input[type=submit] (`ngClick`) *and* a submit handler on the enclosing form (`ngSubmit`) * * Any pending `ngModelOptions` changes will take place immediately when an enclosing form is * submitted. Note that `ngClick` events will occur before the model is updated. Use `ngSubmit` * to have access to the updated model. * * ## Animation Hooks * * Animations in ngForm are triggered when any of the associated CSS classes are added and removed. * These classes are: `.ng-pristine`, `.ng-dirty`, `.ng-invalid` and `.ng-valid` as well as any * other validations that are performed within the form. Animations in ngForm are similar to how * they work in ngClass and animations can be hooked into using CSS transitions, keyframes as well * as JS animations. * * The following example shows a simple way to utilize CSS transitions to style a form element * that has been rendered as invalid after it has been validated: * *

	 * //be sure to include ngAnimate as a module to hook into more
	 * //advanced animations
	 * .my-form {
	 *   transition:0.5s linear all;
	 *   background: white;
	 * }
	 * .my-form.ng-invalid {
	 *   background: red;
	 *   color:white;
	 * }
	 *

* * @example userType: Required!
userType = {{userType}}
myForm.input.$valid = {{myForm.input.$valid}}
myForm.input.$error = {{myForm.input.$error}}
myForm.$valid = {{myForm.$valid}}
myForm.$error.required = {{!!myForm.$error.required}}
it('should initialize to model', function() { var userType = element(by.binding('userType')); var valid = element(by.binding('myForm.input.$valid')); expect(userType.getText()).toContain('guest'); expect(valid.getText()).toContain('true'); }); it('should be invalid if empty', function() { var userType = element(by.binding('userType')); var valid = element(by.binding('myForm.input.$valid')); var userInput = element(by.model('userType')); userInput.clear(); userInput.sendKeys(''); expect(userType.getText()).toEqual('userType ='); expect(valid.getText()).toContain('false'); });

* * @param {string=} name Name of the form. If specified, the form controller will be published into * related scope, under this name. */ var formDirectiveFactory = function(isNgForm) { return ['$timeout', '$parse', function($timeout, $parse) { var formDirective = { name: 'form', restrict: isNgForm ? 'EAC' : 'E', require: ['form', '^^?form'], //first is the form's own ctrl, second is an optional parent form controller: FormController, compile: function ngFormCompile(formElement, attr) { // Setup initial state of the control formElement.addClass(PRISTINE_CLASS).addClass(VALID_CLASS); var nameAttr = attr.name ? 'name' : (isNgForm && attr.ngForm ? 'ngForm' : false); return { pre: function ngFormPreLink(scope, formElement, attr, ctrls) { var controller = ctrls[0]; // if `action` attr is not present on the form, prevent the default action (submission) if (!('action' in attr)) { // we can't use jq events because if a form is destroyed during submission the default // action is not prevented. see #1238 // // IE 9 is not affected because it doesn't fire a submit event and try to do a full // page reload if the form was destroyed by submission of the form via a click handler // on a button in the form. Looks like an IE9 specific bug. var handleFormSubmission = function(event) { scope.$apply(function() { controller.$commitViewValue(); controller.$setSubmitted(); }); event.preventDefault(); }; addEventListenerFn(formElement[0], 'submit', handleFormSubmission); // unregister the preventDefault listener so that we don't not leak memory but in a // way that will achieve the prevention of the default action. formElement.on('$destroy', function() { $timeout(function() { removeEventListenerFn(formElement[0], 'submit', handleFormSubmission); }, 0, false); }); } var parentFormCtrl = ctrls[1] || controller.$$parentForm; parentFormCtrl.$addControl(controller); var setter = nameAttr ? getSetter(controller.$name) : noop; if (nameAttr) { setter(scope, controller); attr.$observe(nameAttr, function(newValue) { if (controller.$name === newValue) return; setter(scope, undefined); controller.$$parentForm.$$renameControl(controller, newValue); setter = getSetter(controller.$name); setter(scope, controller); }); } formElement.on('$destroy', function() { controller.$$parentForm.$removeControl(controller); setter(scope, undefined); extend(controller, nullFormCtrl); //stop propagating child destruction handlers upwards }); } }; } }; return formDirective; function getSetter(expression) { if (expression === '') { //create an assignable expression, so forms with an empty name can be renamed later return $parse('this[""]').assign; } return $parse(expression).assign || noop; } }]; }; var formDirective = formDirectiveFactory(); var ngFormDirective = formDirectiveFactory(true); /* global VALID_CLASS: false, INVALID_CLASS: false, PRISTINE_CLASS: false, DIRTY_CLASS: false, UNTOUCHED_CLASS: false, TOUCHED_CLASS: false, ngModelMinErr: false, */ // Regex code was initially obtained from SO prior to modification: https://stackoverflow.com/questions/3143070/javascript-regex-iso-datetime#answer-3143231 var ISO_DATE_REGEXP = /^\d{4,}-[01]\d-[0-3]\dT[0-2]\d:[0-5]\d:[0-5]\d\.\d+(?:[+-][0-2]\d:[0-5]\d|Z)$/; // See valid URLs in RFC3987 (http://tools.ietf.org/html/rfc3987) // Note: We are being more lenient, because browsers are too. // 1. Scheme // 2. Slashes // 3. Username // 4. Password // 5. Hostname // 6. Port // 7. Path // 8. Query // 9. Fragment // 1111111111111111 222 333333 44444 555555555555555555555555 666 77777777 8888888 999 var URL_REGEXP = /^[a-z][a-z\d.+-]*:\/*(?:[^:@]+(?::[^@]+)?@)?(?:[^\s:/?#]+|\[[a-f\d:]+\])(?::\d+)?(?:\/[^?#]*)?(?:\?[^#]*)?(?:#.*)?$/i; /* jshint maxlen:220 */ var EMAIL_REGEXP = /^(?=.{1,254}$)(?=.{1,64}@)[-!#$%&'*+\/0-9=?A-Z^_`a-z{|}~]+(\.[-!#$%&'*+\/0-9=?A-Z^_`a-z{|}~]+)*@[A-Za-z0-9]([A-Za-z0-9-]{0,61}[A-Za-z0-9])?(\.[A-Za-z0-9]([A-Za-z0-9-]{0,61}[A-Za-z0-9])?)*$/; /* jshint maxlen:200 */ var NUMBER_REGEXP = /^\s*(\-|\+)?(\d+|(\d*(\.\d*)))([eE][+-]?\d+)?\s*$/; var DATE_REGEXP = /^(\d{4,})-(\d{2})-(\d{2})$/; var DATETIMELOCAL_REGEXP = /^(\d{4,})-(\d\d)-(\d\d)T(\d\d):(\d\d)(?::(\d\d)(\.\d{1,3})?)?$/; var WEEK_REGEXP = /^(\d{4,})-W(\d\d)$/; var MONTH_REGEXP = /^(\d{4,})-(\d\d)$/; var TIME_REGEXP = /^(\d\d):(\d\d)(?::(\d\d)(\.\d{1,3})?)?$/; var PARTIAL_VALIDATION_EVENTS = 'keydown wheel mousedown'; var PARTIAL_VALIDATION_TYPES = createMap(); forEach('date,datetime-local,month,time,week'.split(','), function(type) { PARTIAL_VALIDATION_TYPES[type] = true; }); var inputType = { /** * @ngdoc input * @name input[text] * * @description * Standard HTML text input with angular data binding, inherited by most of the `input` elements. * * * @param {string} ngModel Assignable angular expression to data-bind to. * @param {string=} name Property name of the form under which the control is published. * @param {string=} required Adds `required` validation error key if the value is not entered. * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to * the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of * `required` when you want to data-bind to the `required` attribute. * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than * minlength. * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than * maxlength. Setting the attribute to a negative or non-numeric value, allows view values of * any length. * @param {string=} pattern Similar to `ngPattern` except that the attribute value is the actual string * that contains the regular expression body that will be converted to a regular expression * as in the ngPattern directive. * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel {@link ngModel.NgModelController#$viewValue $viewValue} * does not match a RegExp found by evaluating the Angular expression given in the attribute value. * If the expression evaluates to a RegExp object, then this is used directly. * If the expression evaluates to a string, then it will be converted to a RegExp * after wrapping it in `^` and `$` characters. For instance, `"abc"` will be converted to * `new RegExp('^abc$')`.
* **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to * start at the index of the last search's match, thus not taking the whole input value into * account. * @param {string=} ngChange Angular expression to be executed when input changes due to user * interaction with the input element. * @param {boolean=} [ngTrim=true] If set to false Angular will not automatically trim the input. * This parameter is ignored for input[type=password] controls, which will never trim the * input. * * @example

Single word:

Required! Single word only!

text = {{example.text}}
myForm.input.$valid = {{myForm.input.$valid}}
myForm.input.$error = {{myForm.input.$error}}
myForm.$valid = {{myForm.$valid}}
myForm.$error.required = {{!!myForm.$error.required}}

* The model must always be of type `number` otherwise Angular will throw an error. * Be aware that a string containing a number is not enough. See the {@link ngModel:numfmt} * error docs for more information and an example of how to convert your model if necessary. *

* * ## Issues with HTML5 constraint validation * * In browsers that follow the * [HTML5 specification](https://html.spec.whatwg.org/multipage/forms.html#number-state-%28type=number%29), * `input[number]` does not work as expected with {@link ngModelOptions `ngModelOptions.allowInvalid`}. * If a non-number is entered in the input, the browser will report the value as an empty string, * which means the view / model values in `ngModel` and subsequently the scope value * will also be an empty string. * * * @param {string} ngModel Assignable angular expression to data-bind to. * @param {string=} name Property name of the form under which the control is published. * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`. * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`. * @param {string=} required Sets `required` validation error key if the value is not entered. * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to * the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of * `required` when you want to data-bind to the `required` attribute. * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than * minlength. * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than * maxlength. Setting the attribute to a negative or non-numeric value, allows view values of * any length. * @param {string=} pattern Similar to `ngPattern` except that the attribute value is the actual string * that contains the regular expression body that will be converted to a regular expression * as in the ngPattern directive. * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel {@link ngModel.NgModelController#$viewValue $viewValue} * does not match a RegExp found by evaluating the Angular expression given in the attribute value. * If the expression evaluates to a RegExp object, then this is used directly. * If the expression evaluates to a string, then it will be converted to a RegExp * after wrapping it in `^` and `$` characters. For instance, `"abc"` will be converted to * `new RegExp('^abc$')`.
* **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to * start at the index of the last search's match, thus not taking the whole input value into * account. * @param {string=} ngChange Angular expression to be executed when input changes due to user * interaction with the input element. * * @example var value = element(by.binding('example.value')); var valid = element(by.binding('myForm.input.$valid')); var input = element(by.model('example.value')); it('should initialize to model', function() { expect(value.getText()).toContain('12'); expect(valid.getText()).toContain('true'); }); it('should be invalid if empty', function() { input.clear(); input.sendKeys(''); expect(value.getText()).toEqual('value ='); expect(valid.getText()).toContain('false'); }); it('should be invalid if over max', function() { input.clear(); input.sendKeys('123'); expect(value.getText()).toEqual('value ='); expect(valid.getText()).toContain('false'); }); */ 'number': numberInputType, /** * @ngdoc input * @name input[url] * * @description * Text input with URL validation. Sets the `url` validation error key if the content is not a * valid URL. * *

* **Note:** `input[url]` uses a regex to validate urls that is derived from the regex * used in Chromium. If you need stricter validation, you can use `ng-pattern` or modify * the built-in validators (see the {@link guide/forms Forms guide}) *

* **Note:** `input[email]` uses a regex to validate email addresses that is derived from the regex * used in Chromium. If you need stricter validation (e.g. requiring a top-level domain), you can * use `ng-pattern` or modify the built-in validators (see the {@link guide/forms Forms guide}) *

* * @param {string} ngModel Assignable angular expression to data-bind to. * @param {string=} name Property name of the form under which the control is published. * @param {string=} required Sets `required` validation error key if the value is not entered. * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to * the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of * `required` when you want to data-bind to the `required` attribute. * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than * minlength. * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than * maxlength. Setting the attribute to a negative or non-numeric value, allows view values of * any length. * @param {string=} pattern Similar to `ngPattern` except that the attribute value is the actual string * that contains the regular expression body that will be converted to a regular expression * as in the ngPattern directive. * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel {@link ngModel.NgModelController#$viewValue $viewValue} * does not match a RegExp found by evaluating the Angular expression given in the attribute value. * If the expression evaluates to a RegExp object, then this is used directly. * If the expression evaluates to a string, then it will be converted to a RegExp * after wrapping it in `^` and `$` characters. For instance, `"abc"` will be converted to * `new RegExp('^abc$')`.
* **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to * start at the index of the last search's match, thus not taking the whole input value into * account. * @param {string=} ngChange Angular expression to be executed when input changes due to user * interaction with the input element. * * @example var text = element(by.binding('email.text')); var valid = element(by.binding('myForm.input.$valid')); var input = element(by.model('email.text')); it('should initialize to model', function() { expect(text.getText()).toContain('me@example.com'); expect(valid.getText()).toContain('true'); }); it('should be invalid if empty', function() { input.clear(); input.sendKeys(''); expect(text.getText()).toEqual('text ='); expect(valid.getText()).toContain('false'); }); it('should be invalid if not email', function() { input.clear(); input.sendKeys('xxx'); expect(valid.getText()).toContain('false'); }); */ 'email': emailInputType, /** * @ngdoc input * @name input[radio] * * @description * HTML radio button. * * @param {string} ngModel Assignable angular expression to data-bind to. * @param {string} value The value to which the `ngModel` expression should be set when selected. * Note that `value` only supports `string` values, i.e. the scope model needs to be a string, * too. Use `ngValue` if you need complex models (`number`, `object`, ...). * @param {string=} name Property name of the form under which the control is published. * @param {string=} ngChange Angular expression to be executed when input changes due to user * interaction with the input element. * @param {string} ngValue Angular expression to which `ngModel` will be be set when the radio * is selected. Should be used instead of the `value` attribute if you need * a non-string `ngModel` (`boolean`, `array`, ...). * * @example Note that `ng-value="specialValue"` sets radio item's value to be the value of `$scope.specialValue`. it('should change state', function() { var color = element(by.binding('color.name')); expect(color.getText()).toContain('blue'); element.all(by.model('color.name')).get(0).click(); expect(color.getText()).toContain('red'); }); */ 'radio': radioInputType, /** * @ngdoc input * @name input[checkbox] * * @description * HTML checkbox. * * @param {string} ngModel Assignable angular expression to data-bind to. * @param {string=} name Property name of the form under which the control is published. * @param {expression=} ngTrueValue The value to which the expression should be set when selected. * @param {expression=} ngFalseValue The value to which the expression should be set when not selected. * @param {string=} ngChange Angular expression to be executed when input changes due to user * interaction with the input element. * * @example it('should change state', function() { var value1 = element(by.binding('checkboxModel.value1')); var value2 = element(by.binding('checkboxModel.value2')); expect(value1.getText()).toContain('true'); expect(value2.getText()).toContain('YES'); element(by.model('checkboxModel.value1')).click(); element(by.model('checkboxModel.value2')).click(); expect(value1.getText()).toContain('false'); expect(value2.getText()).toContain('NO'); }); */ 'checkbox': checkboxInputType, 'hidden': noop, 'button': noop, 'submit': noop, 'reset': noop, 'file': noop }; function stringBasedInputType(ctrl) { ctrl.$formatters.push(function(value) { return ctrl.$isEmpty(value) ? value : value.toString(); }); } function textInputType(scope, element, attr, ctrl, $sniffer, $browser) { baseInputType(scope, element, attr, ctrl, $sniffer, $browser); stringBasedInputType(ctrl); } function baseInputType(scope, element, attr, ctrl, $sniffer, $browser) { var type = lowercase(element[0].type); // In composition mode, users are still inputing intermediate text buffer, // hold the listener until composition is done. // More about composition events: https://developer.mozilla.org/en-US/docs/Web/API/CompositionEvent if (!$sniffer.android) { var composing = false; element.on('compositionstart', function() { composing = true; }); element.on('compositionend', function() { composing = false; listener(); }); } var timeout; var listener = function(ev) { if (timeout) { $browser.defer.cancel(timeout); timeout = null; } if (composing) return; var value = element.val(), event = ev && ev.type; // By default we will trim the value // If the attribute ng-trim exists we will avoid trimming // If input type is 'password', the value is never trimmed if (type !== 'password' && (!attr.ngTrim || attr.ngTrim !== 'false')) { value = trim(value); } // If a control is suffering from bad input (due to native validators), browsers discard its // value, so it may be necessary to revalidate (by calling $setViewValue again) even if the // control's value is the same empty value twice in a row. if (ctrl.$viewValue !== value || (value === '' && ctrl.$$hasNativeValidators)) { ctrl.$setViewValue(value, event); } }; // if the browser does support "input" event, we are fine - except on IE9 which doesn't fire the // input event on backspace, delete or cut if ($sniffer.hasEvent('input')) { element.on('input', listener); } else { var deferListener = function(ev, input, origValue) { if (!timeout) { timeout = $browser.defer(function() { timeout = null; if (!input || input.value !== origValue) { listener(ev); } }); } }; element.on('keydown', function(event) { var key = event.keyCode; // ignore // command modifiers arrows if (key === 91 || (15 < key && key < 19) || (37 <= key && key <= 40)) return; deferListener(event, this, this.value); }); // if user modifies input value using context menu in IE, we need "paste" and "cut" events to catch it if ($sniffer.hasEvent('paste')) { element.on('paste cut', deferListener); } } // if user paste into input using mouse on older browser // or form autocomplete on newer browser, we need "change" event to catch it element.on('change', listener); // Some native input types (date-family) have the ability to change validity without // firing any input/change events. // For these event types, when native validators are present and the browser supports the type, // check for validity changes on various DOM events. if (PARTIAL_VALIDATION_TYPES[type] && ctrl.$$hasNativeValidators && type === attr.type) { element.on(PARTIAL_VALIDATION_EVENTS, function(ev) { if (!timeout) { var validity = this[VALIDITY_STATE_PROPERTY]; var origBadInput = validity.badInput; var origTypeMismatch = validity.typeMismatch; timeout = $browser.defer(function() { timeout = null; if (validity.badInput !== origBadInput || validity.typeMismatch !== origTypeMismatch) { listener(ev); } }); } }); } ctrl.$render = function() { // Workaround for Firefox validation #12102. var value = ctrl.$isEmpty(ctrl.$viewValue) ? '' : ctrl.$viewValue; if (element.val() !== value) { element.val(value); } }; } function weekParser(isoWeek, existingDate) { if (isDate(isoWeek)) { return isoWeek; } if (isString(isoWeek)) { WEEK_REGEXP.lastIndex = 0; var parts = WEEK_REGEXP.exec(isoWeek); if (parts) { var year = +parts[1], week = +parts[2], hours = 0, minutes = 0, seconds = 0, milliseconds = 0, firstThurs = getFirstThursdayOfYear(year), addDays = (week - 1) * 7; if (existingDate) { hours = existingDate.getHours(); minutes = existingDate.getMinutes(); seconds = existingDate.getSeconds(); milliseconds = existingDate.getMilliseconds(); } return new Date(year, 0, firstThurs.getDate() + addDays, hours, minutes, seconds, milliseconds); } } return NaN; } function createDateParser(regexp, mapping) { return function(iso, date) { var parts, map; if (isDate(iso)) { return iso; } if (isString(iso)) { // When a date is JSON'ified to wraps itself inside of an extra // set of double quotes. This makes the date parsing code unable // to match the date string and parse it as a date. if (iso.charAt(0) == '"' && iso.charAt(iso.length - 1) == '"') { iso = iso.substring(1, iso.length - 1); } if (ISO_DATE_REGEXP.test(iso)) { return new Date(iso); } regexp.lastIndex = 0; parts = regexp.exec(iso); if (parts) { parts.shift(); if (date) { map = { yyyy: date.getFullYear(), MM: date.getMonth() + 1, dd: date.getDate(), HH: date.getHours(), mm: date.getMinutes(), ss: date.getSeconds(), sss: date.getMilliseconds() / 1000 }; } else { map = { yyyy: 1970, MM: 1, dd: 1, HH: 0, mm: 0, ss: 0, sss: 0 }; } forEach(parts, function(part, index) { if (index < mapping.length) { map[mapping[index]] = +part; } }); return new Date(map.yyyy, map.MM - 1, map.dd, map.HH, map.mm, map.ss || 0, map.sss * 1000 || 0); } } return NaN; }; } function createDateInputType(type, regexp, parseDate, format) { return function dynamicDateInputType(scope, element, attr, ctrl, $sniffer, $browser, $filter) { badInputChecker(scope, element, attr, ctrl); baseInputType(scope, element, attr, ctrl, $sniffer, $browser); var timezone = ctrl && ctrl.$options && ctrl.$options.timezone; var previousDate; ctrl.$$parserName = type; ctrl.$parsers.push(function(value) { if (ctrl.$isEmpty(value)) return null; if (regexp.test(value)) { // Note: We cannot read ctrl.$modelValue, as there might be a different // parser/formatter in the processing chain so that the model // contains some different data format! var parsedDate = parseDate(value, previousDate); if (timezone) { parsedDate = convertTimezoneToLocal(parsedDate, timezone); } return parsedDate; } return undefined; }); ctrl.$formatters.push(function(value) { if (value && !isDate(value)) { throw ngModelMinErr('datefmt', 'Expected `{0}` to be a date', value); } if (isValidDate(value)) { previousDate = value; if (previousDate && timezone) { previousDate = convertTimezoneToLocal(previousDate, timezone, true); } return $filter('date')(value, format, timezone); } else { previousDate = null; return ''; } }); if (isDefined(attr.min) || attr.ngMin) { var minVal; ctrl.$validators.min = function(value) { return !isValidDate(value) || isUndefined(minVal) || parseDate(value) >= minVal; }; attr.$observe('min', function(val) { minVal = parseObservedDateValue(val); ctrl.$validate(); }); } if (isDefined(attr.max) || attr.ngMax) { var maxVal; ctrl.$validators.max = function(value) { return !isValidDate(value) || isUndefined(maxVal) || parseDate(value) <= maxVal; }; attr.$observe('max', function(val) { maxVal = parseObservedDateValue(val); ctrl.$validate(); }); } function isValidDate(value) { // Invalid Date: getTime() returns NaN return value && !(value.getTime && value.getTime() !== value.getTime()); } function parseObservedDateValue(val) { return isDefined(val) && !isDate(val) ? parseDate(val) || undefined : val; } }; } function badInputChecker(scope, element, attr, ctrl) { var node = element[0]; var nativeValidation = ctrl.$$hasNativeValidators = isObject(node.validity); if (nativeValidation) { ctrl.$parsers.push(function(value) { var validity = element.prop(VALIDITY_STATE_PROPERTY) || {}; return validity.badInput || validity.typeMismatch ? undefined : value; }); } } function numberInputType(scope, element, attr, ctrl, $sniffer, $browser) { badInputChecker(scope, element, attr, ctrl); baseInputType(scope, element, attr, ctrl, $sniffer, $browser); ctrl.$$parserName = 'number'; ctrl.$parsers.push(function(value) { if (ctrl.$isEmpty(value)) return null; if (NUMBER_REGEXP.test(value)) return parseFloat(value); return undefined; }); ctrl.$formatters.push(function(value) { if (!ctrl.$isEmpty(value)) { if (!isNumber(value)) { throw ngModelMinErr('numfmt', 'Expected `{0}` to be a number', value); } value = value.toString(); } return value; }); if (isDefined(attr.min) || attr.ngMin) { var minVal; ctrl.$validators.min = function(value) { return ctrl.$isEmpty(value) || isUndefined(minVal) || value >= minVal; }; attr.$observe('min', function(val) { if (isDefined(val) && !isNumber(val)) { val = parseFloat(val); } minVal = isNumber(val) && !isNaN(val) ? val : undefined; // TODO(matsko): implement validateLater to reduce number of validations ctrl.$validate(); }); } if (isDefined(attr.max) || attr.ngMax) { var maxVal; ctrl.$validators.max = function(value) { return ctrl.$isEmpty(value) || isUndefined(maxVal) || value <= maxVal; }; attr.$observe('max', function(val) { if (isDefined(val) && !isNumber(val)) { val = parseFloat(val); } maxVal = isNumber(val) && !isNaN(val) ? val : undefined; // TODO(matsko): implement validateLater to reduce number of validations ctrl.$validate(); }); } } function urlInputType(scope, element, attr, ctrl, $sniffer, $browser) { // Note: no badInputChecker here by purpose as `url` is only a validation // in browsers, i.e. we can always read out input.value even if it is not valid! baseInputType(scope, element, attr, ctrl, $sniffer, $browser); stringBasedInputType(ctrl); ctrl.$$parserName = 'url'; ctrl.$validators.url = function(modelValue, viewValue) { var value = modelValue || viewValue; return ctrl.$isEmpty(value) || URL_REGEXP.test(value); }; } function emailInputType(scope, element, attr, ctrl, $sniffer, $browser) { // Note: no badInputChecker here by purpose as `url` is only a validation // in browsers, i.e. we can always read out input.value even if it is not valid! baseInputType(scope, element, attr, ctrl, $sniffer, $browser); stringBasedInputType(ctrl); ctrl.$$parserName = 'email'; ctrl.$validators.email = function(modelValue, viewValue) { var value = modelValue || viewValue; return ctrl.$isEmpty(value) || EMAIL_REGEXP.test(value); }; } function radioInputType(scope, element, attr, ctrl) { // make the name unique, if not defined if (isUndefined(attr.name)) { element.attr('name', nextUid()); } var listener = function(ev) { if (element[0].checked) { ctrl.$setViewValue(attr.value, ev && ev.type); } }; element.on('click', listener); ctrl.$render = function() { var value = attr.value; element[0].checked = (value == ctrl.$viewValue); }; attr.$observe('value', ctrl.$render); } function parseConstantExpr($parse, context, name, expression, fallback) { var parseFn; if (isDefined(expression)) { parseFn = $parse(expression); if (!parseFn.constant) { throw ngModelMinErr('constexpr', 'Expected constant expression for `{0}`, but saw ' + '`{1}`.', name, expression); } return parseFn(context); } return fallback; } function checkboxInputType(scope, element, attr, ctrl, $sniffer, $browser, $filter, $parse) { var trueValue = parseConstantExpr($parse, scope, 'ngTrueValue', attr.ngTrueValue, true); var falseValue = parseConstantExpr($parse, scope, 'ngFalseValue', attr.ngFalseValue, false); var listener = function(ev) { ctrl.$setViewValue(element[0].checked, ev && ev.type); }; element.on('click', listener); ctrl.$render = function() { element[0].checked = ctrl.$viewValue; }; // Override the standard `$isEmpty` because the $viewValue of an empty checkbox is always set to `false` // This is because of the parser below, which compares the `$modelValue` with `trueValue` to convert // it to a boolean. ctrl.$isEmpty = function(value) { return value === false; }; ctrl.$formatters.push(function(value) { return equals(value, trueValue); }); ctrl.$parsers.push(function(value) { return value ? trueValue : falseValue; }); } /** * @ngdoc directive * @name textarea * @restrict E * * @description * HTML textarea element control with angular data-binding. The data-binding and validation * properties of this element are exactly the same as those of the * {@link ng.directive:input input element}. * * @param {string} ngModel Assignable angular expression to data-bind to. * @param {string=} name Property name of the form under which the control is published. * @param {string=} required Sets `required` validation error key if the value is not entered. * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to * the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of * `required` when you want to data-bind to the `required` attribute. * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than * minlength. * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than * maxlength. Setting the attribute to a negative or non-numeric value, allows view values of any * length. * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel {@link ngModel.NgModelController#$viewValue $viewValue} * does not match a RegExp found by evaluating the Angular expression given in the attribute value. * If the expression evaluates to a RegExp object, then this is used directly. * If the expression evaluates to a string, then it will be converted to a RegExp * after wrapping it in `^` and `$` characters. For instance, `"abc"` will be converted to * `new RegExp('^abc$')`.
* **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to * start at the index of the last search's match, thus not taking the whole input value into * account. * @param {string=} ngChange Angular expression to be executed when input changes due to user * interaction with the input element. * @param {boolean=} [ngTrim=true] If set to false Angular will not automatically trim the input. */ /** * @ngdoc directive * @name input * @restrict E * * @description * HTML input element control. When used together with {@link ngModel `ngModel`}, it provides data-binding, * input state control, and validation. * Input control follows HTML5 input types and polyfills the HTML5 validation behavior for older browsers. * *

* **Note:** Not every feature offered is available for all input types. * Specifically, data binding and event handling via `ng-model` is unsupported for `input[file]`. *

user = {{user}}
myForm.userName.$valid = {{myForm.userName.$valid}}
myForm.userName.$error = {{myForm.userName.$error}}
myForm.lastName.$valid = {{myForm.lastName.$valid}}
myForm.lastName.$error = {{myForm.lastName.$error}}
myForm.$valid = {{myForm.$valid}}
myForm.$error.required = {{!!myForm.$error.required}}
myForm.$error.minlength = {{!!myForm.$error.minlength}}
myForm.$error.maxlength = {{!!myForm.$error.maxlength}}

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