3465 lines
131 KiB
JavaScript
3465 lines
131 KiB
JavaScript
/*
|
|
Copyright 2012 Igor Vaynberg
|
|
|
|
Version: @@ver@@ Timestamp: @@timestamp@@
|
|
|
|
This software is licensed under the Apache License, Version 2.0 (the "Apache License") or the GNU
|
|
General Public License version 2 (the "GPL License"). You may choose either license to govern your
|
|
use of this software only upon the condition that you accept all of the terms of either the Apache
|
|
License or the GPL License.
|
|
|
|
You may obtain a copy of the Apache License and the GPL License at:
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
http://www.gnu.org/licenses/gpl-2.0.html
|
|
|
|
Unless required by applicable law or agreed to in writing, software distributed under the
|
|
Apache License or the GPL License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
|
|
CONDITIONS OF ANY KIND, either express or implied. See the Apache License and the GPL License for
|
|
the specific language governing permissions and limitations under the Apache License and the GPL License.
|
|
*/
|
|
(function ($) {
|
|
if(typeof $.fn.each2 == "undefined") {
|
|
$.extend($.fn, {
|
|
/*
|
|
* 4-10 times faster .each replacement
|
|
* use it carefully, as it overrides jQuery context of element on each iteration
|
|
*/
|
|
each2 : function (c) {
|
|
var j = $([0]), i = -1, l = this.length;
|
|
while (
|
|
++i < l
|
|
&& (j.context = j[0] = this[i])
|
|
&& c.call(j[0], i, j) !== false //"this"=DOM, i=index, j=jQuery object
|
|
);
|
|
return this;
|
|
}
|
|
});
|
|
}
|
|
})(jQuery);
|
|
|
|
(function ($, undefined) {
|
|
"use strict";
|
|
/*global document, window, jQuery, console */
|
|
|
|
if (window.Select2 !== undefined) {
|
|
return;
|
|
}
|
|
|
|
var KEY, AbstractSelect2, SingleSelect2, MultiSelect2, nextUid, sizer,
|
|
lastMousePosition={x:0,y:0}, $document, scrollBarDimensions,
|
|
|
|
KEY = {
|
|
TAB: 9,
|
|
ENTER: 13,
|
|
ESC: 27,
|
|
SPACE: 32,
|
|
LEFT: 37,
|
|
UP: 38,
|
|
RIGHT: 39,
|
|
DOWN: 40,
|
|
SHIFT: 16,
|
|
CTRL: 17,
|
|
ALT: 18,
|
|
PAGE_UP: 33,
|
|
PAGE_DOWN: 34,
|
|
HOME: 36,
|
|
END: 35,
|
|
BACKSPACE: 8,
|
|
DELETE: 46,
|
|
isArrow: function (k) {
|
|
k = k.which ? k.which : k;
|
|
switch (k) {
|
|
case KEY.LEFT:
|
|
case KEY.RIGHT:
|
|
case KEY.UP:
|
|
case KEY.DOWN:
|
|
return true;
|
|
}
|
|
return false;
|
|
},
|
|
isControl: function (e) {
|
|
var k = e.which;
|
|
switch (k) {
|
|
case KEY.SHIFT:
|
|
case KEY.CTRL:
|
|
case KEY.ALT:
|
|
return true;
|
|
}
|
|
|
|
if (e.metaKey) return true;
|
|
|
|
return false;
|
|
},
|
|
isFunctionKey: function (k) {
|
|
k = k.which ? k.which : k;
|
|
return k >= 112 && k <= 123;
|
|
}
|
|
},
|
|
MEASURE_SCROLLBAR_TEMPLATE = "<div class='select2-measure-scrollbar'></div>",
|
|
|
|
// HACK, removed AT LEAST until https://github.com/mishoo/UglifyJS2/issues/328 lands in uglifyjs2
|
|
DIACRITICS = {};
|
|
|
|
$document = $(document);
|
|
|
|
nextUid=(function() { var counter=1; return function() { return counter++; }; }());
|
|
|
|
|
|
function reinsertElement(element) {
|
|
var placeholder = $(document.createTextNode(''));
|
|
|
|
element.before(placeholder);
|
|
placeholder.before(element);
|
|
placeholder.remove();
|
|
}
|
|
|
|
function stripDiacritics(str) {
|
|
// Used 'uni range + named function' from http://jsperf.com/diacritics/18
|
|
function match(a) {
|
|
return DIACRITICS[a] || a;
|
|
}
|
|
|
|
return str.replace(/[^\u0000-\u007E]/g, match);
|
|
}
|
|
|
|
function indexOf(value, array) {
|
|
var i = 0, l = array.length;
|
|
for (; i < l; i = i + 1) {
|
|
if (equal(value, array[i])) return i;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
function measureScrollbar () {
|
|
var $template = $( MEASURE_SCROLLBAR_TEMPLATE );
|
|
$template.appendTo('body');
|
|
|
|
var dim = {
|
|
width: $template.width() - $template[0].clientWidth,
|
|
height: $template.height() - $template[0].clientHeight
|
|
};
|
|
$template.remove();
|
|
|
|
return dim;
|
|
}
|
|
|
|
/**
|
|
* Compares equality of a and b
|
|
* @param a
|
|
* @param b
|
|
*/
|
|
function equal(a, b) {
|
|
if (a === b) return true;
|
|
if (a === undefined || b === undefined) return false;
|
|
if (a === null || b === null) return false;
|
|
// Check whether 'a' or 'b' is a string (primitive or object).
|
|
// The concatenation of an empty string (+'') converts its argument to a string's primitive.
|
|
if (a.constructor === String) return a+'' === b+''; // a+'' - in case 'a' is a String object
|
|
if (b.constructor === String) return b+'' === a+''; // b+'' - in case 'b' is a String object
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Splits the string into an array of values, trimming each value. An empty array is returned for nulls or empty
|
|
* strings
|
|
* @param string
|
|
* @param separator
|
|
*/
|
|
function splitVal(string, separator) {
|
|
var val, i, l;
|
|
if (string === null || string.length < 1) return [];
|
|
val = string.split(separator);
|
|
for (i = 0, l = val.length; i < l; i = i + 1) val[i] = $.trim(val[i]);
|
|
return val;
|
|
}
|
|
|
|
function getSideBorderPadding(element) {
|
|
return element.outerWidth(false) - element.width();
|
|
}
|
|
|
|
function installKeyUpChangeEvent(element) {
|
|
var key="keyup-change-value";
|
|
element.on("keydown", function () {
|
|
if ($.data(element, key) === undefined) {
|
|
$.data(element, key, element.val());
|
|
}
|
|
});
|
|
element.on("keyup", function () {
|
|
var val= $.data(element, key);
|
|
if (val !== undefined && element.val() !== val) {
|
|
$.removeData(element, key);
|
|
element.trigger("keyup-change");
|
|
}
|
|
});
|
|
}
|
|
|
|
$document.on("mousemove", function (e) {
|
|
lastMousePosition.x = e.pageX;
|
|
lastMousePosition.y = e.pageY;
|
|
});
|
|
|
|
/**
|
|
* filters mouse events so an event is fired only if the mouse moved.
|
|
*
|
|
* filters out mouse events that occur when mouse is stationary but
|
|
* the elements under the pointer are scrolled.
|
|
*/
|
|
function installFilteredMouseMove(element) {
|
|
element.on("mousemove", function (e) {
|
|
var lastpos = lastMousePosition;
|
|
if (lastpos === undefined || lastpos.x !== e.pageX || lastpos.y !== e.pageY) {
|
|
$(e.target).trigger("mousemove-filtered", e);
|
|
}
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Debounces a function. Returns a function that calls the original fn function only if no invocations have been made
|
|
* within the last quietMillis milliseconds.
|
|
*
|
|
* @param quietMillis number of milliseconds to wait before invoking fn
|
|
* @param fn function to be debounced
|
|
* @param ctx object to be used as this reference within fn
|
|
* @return debounced version of fn
|
|
*/
|
|
function debounce(quietMillis, fn, ctx) {
|
|
ctx = ctx || undefined;
|
|
var timeout;
|
|
return function () {
|
|
var args = arguments;
|
|
window.clearTimeout(timeout);
|
|
timeout = window.setTimeout(function() {
|
|
fn.apply(ctx, args);
|
|
}, quietMillis);
|
|
};
|
|
}
|
|
|
|
function installDebouncedScroll(threshold, element) {
|
|
var notify = debounce(threshold, function (e) { element.trigger("scroll-debounced", e);});
|
|
element.on("scroll", function (e) {
|
|
if (indexOf(e.target, element.get()) >= 0) notify(e);
|
|
});
|
|
}
|
|
|
|
function focus($el) {
|
|
if ($el[0] === document.activeElement) return;
|
|
|
|
/* set the focus in a 0 timeout - that way the focus is set after the processing
|
|
of the current event has finished - which seems like the only reliable way
|
|
to set focus */
|
|
window.setTimeout(function() {
|
|
var el=$el[0], pos=$el.val().length, range;
|
|
|
|
$el.focus();
|
|
|
|
/* make sure el received focus so we do not error out when trying to manipulate the caret.
|
|
sometimes modals or others listeners may steal it after its set */
|
|
var isVisible = (el.offsetWidth > 0 || el.offsetHeight > 0);
|
|
if (isVisible && el === document.activeElement) {
|
|
|
|
/* after the focus is set move the caret to the end, necessary when we val()
|
|
just before setting focus */
|
|
if(el.setSelectionRange)
|
|
{
|
|
el.setSelectionRange(pos, pos);
|
|
}
|
|
else if (el.createTextRange) {
|
|
range = el.createTextRange();
|
|
range.collapse(false);
|
|
range.select();
|
|
}
|
|
}
|
|
}, 0);
|
|
}
|
|
|
|
function getCursorInfo(el) {
|
|
el = $(el)[0];
|
|
var offset = 0;
|
|
var length = 0;
|
|
if ('selectionStart' in el) {
|
|
offset = el.selectionStart;
|
|
length = el.selectionEnd - offset;
|
|
} else if ('selection' in document) {
|
|
el.focus();
|
|
var sel = document.selection.createRange();
|
|
length = document.selection.createRange().text.length;
|
|
sel.moveStart('character', -el.value.length);
|
|
offset = sel.text.length - length;
|
|
}
|
|
return { offset: offset, length: length };
|
|
}
|
|
|
|
function killEvent(event) {
|
|
event.preventDefault();
|
|
event.stopPropagation();
|
|
}
|
|
function killEventImmediately(event) {
|
|
event.preventDefault();
|
|
event.stopImmediatePropagation();
|
|
}
|
|
|
|
function measureTextWidth(e) {
|
|
if (!sizer){
|
|
var style = e[0].currentStyle || window.getComputedStyle(e[0], null);
|
|
sizer = $(document.createElement("div")).css({
|
|
position: "absolute",
|
|
left: "-10000px",
|
|
top: "-10000px",
|
|
display: "none",
|
|
fontSize: style.fontSize,
|
|
fontFamily: style.fontFamily,
|
|
fontStyle: style.fontStyle,
|
|
fontWeight: style.fontWeight,
|
|
letterSpacing: style.letterSpacing,
|
|
textTransform: style.textTransform,
|
|
whiteSpace: "nowrap"
|
|
});
|
|
sizer.attr("class","select2-sizer");
|
|
$("body").append(sizer);
|
|
}
|
|
sizer.text(e.val());
|
|
return sizer.width();
|
|
}
|
|
|
|
function syncCssClasses(dest, src, adapter) {
|
|
var classes, replacements = [], adapted;
|
|
|
|
classes = dest.attr("class");
|
|
if (classes) {
|
|
classes = '' + classes; // for IE which returns object
|
|
$(classes.split(" ")).each2(function() {
|
|
if (this.indexOf("select2-") === 0) {
|
|
replacements.push(this);
|
|
}
|
|
});
|
|
}
|
|
classes = src.attr("class");
|
|
if (classes) {
|
|
classes = '' + classes; // for IE which returns object
|
|
$(classes.split(" ")).each2(function() {
|
|
if (this.indexOf("select2-") !== 0) {
|
|
adapted = adapter(this);
|
|
if (adapted) {
|
|
replacements.push(adapted);
|
|
}
|
|
}
|
|
});
|
|
}
|
|
dest.attr("class", replacements.join(" "));
|
|
}
|
|
|
|
|
|
function markMatch(text, term, markup, escapeMarkup) {
|
|
var match=stripDiacritics(text.toUpperCase()).indexOf(stripDiacritics(term.toUpperCase())),
|
|
tl=term.length;
|
|
|
|
if (match<0) {
|
|
markup.push(escapeMarkup(text));
|
|
return;
|
|
}
|
|
|
|
markup.push(escapeMarkup(text.substring(0, match)));
|
|
markup.push("<span class='select2-match'>");
|
|
markup.push(escapeMarkup(text.substring(match, match + tl)));
|
|
markup.push("</span>");
|
|
markup.push(escapeMarkup(text.substring(match + tl, text.length)));
|
|
}
|
|
|
|
function defaultEscapeMarkup(markup) {
|
|
var replace_map = {
|
|
'\\': '\',
|
|
'&': '&',
|
|
'<': '<',
|
|
'>': '>',
|
|
'"': '"',
|
|
"'": ''',
|
|
"/": '/'
|
|
};
|
|
|
|
return String(markup).replace(/[&<>"'\/\\]/g, function (match) {
|
|
return replace_map[match];
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Produces an ajax-based query function
|
|
*
|
|
* @param options object containing configuration parameters
|
|
* @param options.params parameter map for the transport ajax call, can contain such options as cache, jsonpCallback, etc. see $.ajax
|
|
* @param options.transport function that will be used to execute the ajax request. must be compatible with parameters supported by $.ajax
|
|
* @param options.url url for the data
|
|
* @param options.data a function(searchTerm, pageNumber, context) that should return an object containing query string parameters for the above url.
|
|
* @param options.dataType request data type: ajax, jsonp, other datatypes supported by jQuery's $.ajax function or the transport function if specified
|
|
* @param options.quietMillis (optional) milliseconds to wait before making the ajaxRequest, helps debounce the ajax function if invoked too often
|
|
* @param options.results a function(remoteData, pageNumber) that converts data returned form the remote request to the format expected by Select2.
|
|
* The expected format is an object containing the following keys:
|
|
* results array of objects that will be used as choices
|
|
* more (optional) boolean indicating whether there are more results available
|
|
* Example: {results:[{id:1, text:'Red'},{id:2, text:'Blue'}], more:true}
|
|
*/
|
|
function ajax(options) {
|
|
var timeout, // current scheduled but not yet executed request
|
|
handler = null,
|
|
quietMillis = options.quietMillis || 100,
|
|
ajaxUrl = options.url,
|
|
self = this;
|
|
|
|
return function (query) {
|
|
window.clearTimeout(timeout);
|
|
timeout = window.setTimeout(function () {
|
|
var data = options.data, // ajax data function
|
|
url = ajaxUrl, // ajax url string or function
|
|
transport = options.transport || $.fn.select2.ajaxDefaults.transport,
|
|
// deprecated - to be removed in 4.0 - use params instead
|
|
deprecated = {
|
|
type: options.type || 'GET', // set type of request (GET or POST)
|
|
cache: options.cache || false,
|
|
jsonpCallback: options.jsonpCallback||undefined,
|
|
dataType: options.dataType||"json"
|
|
},
|
|
params = $.extend({}, $.fn.select2.ajaxDefaults.params, deprecated);
|
|
|
|
data = data ? data.call(self, query.term, query.page, query.context) : null;
|
|
url = (typeof url === 'function') ? url.call(self, query.term, query.page, query.context) : url;
|
|
|
|
if (handler && typeof handler.abort === "function") { handler.abort(); }
|
|
|
|
if (options.params) {
|
|
if ($.isFunction(options.params)) {
|
|
$.extend(params, options.params.call(self));
|
|
} else {
|
|
$.extend(params, options.params);
|
|
}
|
|
}
|
|
|
|
$.extend(params, {
|
|
url: url,
|
|
dataType: options.dataType,
|
|
data: data,
|
|
success: function (data) {
|
|
// TODO - replace query.page with query so users have access to term, page, etc.
|
|
var results = options.results(data, query.page);
|
|
query.callback(results);
|
|
}
|
|
});
|
|
handler = transport.call(self, params);
|
|
}, quietMillis);
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Produces a query function that works with a local array
|
|
*
|
|
* @param options object containing configuration parameters. The options parameter can either be an array or an
|
|
* object.
|
|
*
|
|
* If the array form is used it is assumed that it contains objects with 'id' and 'text' keys.
|
|
*
|
|
* If the object form is used it is assumed that it contains 'data' and 'text' keys. The 'data' key should contain
|
|
* an array of objects that will be used as choices. These objects must contain at least an 'id' key. The 'text'
|
|
* key can either be a String in which case it is expected that each element in the 'data' array has a key with the
|
|
* value of 'text' which will be used to match choices. Alternatively, text can be a function(item) that can extract
|
|
* the text.
|
|
*/
|
|
function local(options) {
|
|
var data = options, // data elements
|
|
dataText,
|
|
tmp,
|
|
text = function (item) { return ""+item.text; }; // function used to retrieve the text portion of a data item that is matched against the search
|
|
|
|
if ($.isArray(data)) {
|
|
tmp = data;
|
|
data = { results: tmp };
|
|
}
|
|
|
|
if ($.isFunction(data) === false) {
|
|
tmp = data;
|
|
data = function() { return tmp; };
|
|
}
|
|
|
|
var dataItem = data();
|
|
if (dataItem.text) {
|
|
text = dataItem.text;
|
|
// if text is not a function we assume it to be a key name
|
|
if (!$.isFunction(text)) {
|
|
dataText = dataItem.text; // we need to store this in a separate variable because in the next step data gets reset and data.text is no longer available
|
|
text = function (item) { return item[dataText]; };
|
|
}
|
|
}
|
|
|
|
return function (query) {
|
|
var t = query.term, filtered = { results: [] }, process;
|
|
if (t === "") {
|
|
query.callback(data());
|
|
return;
|
|
}
|
|
|
|
process = function(datum, collection) {
|
|
var group, attr;
|
|
datum = datum[0];
|
|
if (datum.children) {
|
|
group = {};
|
|
for (attr in datum) {
|
|
if (datum.hasOwnProperty(attr)) group[attr]=datum[attr];
|
|
}
|
|
group.children=[];
|
|
$(datum.children).each2(function(i, childDatum) { process(childDatum, group.children); });
|
|
if (group.children.length || query.matcher(t, text(group), datum)) {
|
|
collection.push(group);
|
|
}
|
|
} else {
|
|
if (query.matcher(t, text(datum), datum)) {
|
|
collection.push(datum);
|
|
}
|
|
}
|
|
};
|
|
|
|
$(data().results).each2(function(i, datum) { process(datum, filtered.results); });
|
|
query.callback(filtered);
|
|
};
|
|
}
|
|
|
|
// TODO javadoc
|
|
function tags(data) {
|
|
var isFunc = $.isFunction(data);
|
|
return function (query) {
|
|
var t = query.term, filtered = {results: []};
|
|
var result = isFunc ? data(query) : data;
|
|
if ($.isArray(result)) {
|
|
$(result).each(function () {
|
|
var isObject = this.text !== undefined,
|
|
text = isObject ? this.text : this;
|
|
if (t === "" || query.matcher(t, text)) {
|
|
filtered.results.push(isObject ? this : {id: this, text: this});
|
|
}
|
|
});
|
|
query.callback(filtered);
|
|
}
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Checks if the formatter function should be used.
|
|
*
|
|
* Throws an error if it is not a function. Returns true if it should be used,
|
|
* false if no formatting should be performed.
|
|
*
|
|
* @param formatter
|
|
*/
|
|
function checkFormatter(formatter, formatterName) {
|
|
if ($.isFunction(formatter)) return true;
|
|
if (!formatter) return false;
|
|
if (typeof(formatter) === 'string') return true;
|
|
throw new Error(formatterName +" must be a string, function, or falsy value");
|
|
}
|
|
|
|
/**
|
|
* Returns a given value
|
|
* If given a function, returns its output
|
|
*
|
|
* @param val string|function
|
|
* @param context value of "this" to be passed to function
|
|
* @returns {*}
|
|
*/
|
|
function evaluate(val, context) {
|
|
if ($.isFunction(val)) {
|
|
var args = Array.prototype.slice.call(arguments, 2);
|
|
return val.apply(context, args);
|
|
}
|
|
return val;
|
|
}
|
|
|
|
function countResults(results) {
|
|
var count = 0;
|
|
$.each(results, function(i, item) {
|
|
if (item.children) {
|
|
count += countResults(item.children);
|
|
} else {
|
|
count++;
|
|
}
|
|
});
|
|
return count;
|
|
}
|
|
|
|
/**
|
|
* Default tokenizer. This function uses breaks the input on substring match of any string from the
|
|
* opts.tokenSeparators array and uses opts.createSearchChoice to create the choice object. Both of those
|
|
* two options have to be defined in order for the tokenizer to work.
|
|
*
|
|
* @param input text user has typed so far or pasted into the search field
|
|
* @param selection currently selected choices
|
|
* @param selectCallback function(choice) callback tho add the choice to selection
|
|
* @param opts select2's opts
|
|
* @return undefined/null to leave the current input unchanged, or a string to change the input to the returned value
|
|
*/
|
|
function defaultTokenizer(input, selection, selectCallback, opts) {
|
|
var original = input, // store the original so we can compare and know if we need to tell the search to update its text
|
|
dupe = false, // check for whether a token we extracted represents a duplicate selected choice
|
|
token, // token
|
|
index, // position at which the separator was found
|
|
i, l, // looping variables
|
|
separator; // the matched separator
|
|
|
|
if (!opts.createSearchChoice || !opts.tokenSeparators || opts.tokenSeparators.length < 1) return undefined;
|
|
|
|
while (true) {
|
|
index = -1;
|
|
|
|
for (i = 0, l = opts.tokenSeparators.length; i < l; i++) {
|
|
separator = opts.tokenSeparators[i];
|
|
index = input.indexOf(separator);
|
|
if (index >= 0) break;
|
|
}
|
|
|
|
if (index < 0) break; // did not find any token separator in the input string, bail
|
|
|
|
token = input.substring(0, index);
|
|
input = input.substring(index + separator.length);
|
|
|
|
if (token.length > 0) {
|
|
token = opts.createSearchChoice.call(this, token, selection);
|
|
if (token !== undefined && token !== null && opts.id(token) !== undefined && opts.id(token) !== null) {
|
|
dupe = false;
|
|
for (i = 0, l = selection.length; i < l; i++) {
|
|
if (equal(opts.id(token), opts.id(selection[i]))) {
|
|
dupe = true; break;
|
|
}
|
|
}
|
|
|
|
if (!dupe) selectCallback(token);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (original!==input) return input;
|
|
}
|
|
|
|
function cleanupJQueryElements() {
|
|
var self = this;
|
|
|
|
Array.prototype.forEach.call(arguments, function (element) {
|
|
self[element].remove();
|
|
self[element] = null;
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Creates a new class
|
|
*
|
|
* @param superClass
|
|
* @param methods
|
|
*/
|
|
function clazz(SuperClass, methods) {
|
|
var constructor = function () {};
|
|
constructor.prototype = new SuperClass;
|
|
constructor.prototype.constructor = constructor;
|
|
constructor.prototype.parent = SuperClass.prototype;
|
|
constructor.prototype = $.extend(constructor.prototype, methods);
|
|
return constructor;
|
|
}
|
|
|
|
AbstractSelect2 = clazz(Object, {
|
|
|
|
// abstract
|
|
bind: function (func) {
|
|
var self = this;
|
|
return function () {
|
|
func.apply(self, arguments);
|
|
};
|
|
},
|
|
|
|
// abstract
|
|
init: function (opts) {
|
|
var results, search, resultsSelector = ".select2-results";
|
|
|
|
// prepare options
|
|
this.opts = opts = this.prepareOpts(opts);
|
|
|
|
this.id=opts.id;
|
|
|
|
// destroy if called on an existing component
|
|
if (opts.element.data("select2") !== undefined &&
|
|
opts.element.data("select2") !== null) {
|
|
opts.element.data("select2").destroy();
|
|
}
|
|
|
|
this.container = this.createContainer();
|
|
|
|
this.liveRegion = $("<span>", {
|
|
role: "status",
|
|
"aria-live": "polite"
|
|
})
|
|
.addClass("select2-hidden-accessible")
|
|
.appendTo(document.body);
|
|
|
|
this.containerId="s2id_"+(opts.element.attr("id") || "autogen"+nextUid());
|
|
this.containerEventName= this.containerId
|
|
.replace(/([.])/g, '_')
|
|
.replace(/([;&,\-\.\+\*\~':"\!\^#$%@\[\]\(\)=>\|])/g, '\\$1');
|
|
this.container.attr("id", this.containerId);
|
|
|
|
this.container.attr("title", opts.element.attr("title"));
|
|
|
|
this.body = $("body");
|
|
|
|
syncCssClasses(this.container, this.opts.element, this.opts.adaptContainerCssClass);
|
|
|
|
this.container.attr("style", opts.element.attr("style"));
|
|
this.container.css(evaluate(opts.containerCss, this.opts.element));
|
|
this.container.addClass(evaluate(opts.containerCssClass, this.opts.element));
|
|
|
|
this.elementTabIndex = this.opts.element.attr("tabindex");
|
|
|
|
// swap container for the element
|
|
this.opts.element
|
|
.data("select2", this)
|
|
.attr("tabindex", "-1")
|
|
.before(this.container)
|
|
.on("click.select2", killEvent); // do not leak click events
|
|
|
|
this.container.data("select2", this);
|
|
|
|
this.dropdown = this.container.find(".select2-drop");
|
|
|
|
syncCssClasses(this.dropdown, this.opts.element, this.opts.adaptDropdownCssClass);
|
|
|
|
this.dropdown.addClass(evaluate(opts.dropdownCssClass, this.opts.element));
|
|
this.dropdown.data("select2", this);
|
|
this.dropdown.on("click", killEvent);
|
|
|
|
this.results = results = this.container.find(resultsSelector);
|
|
this.search = search = this.container.find("input.select2-input");
|
|
|
|
this.queryCount = 0;
|
|
this.resultsPage = 0;
|
|
this.context = null;
|
|
|
|
// initialize the container
|
|
this.initContainer();
|
|
|
|
this.container.on("click", killEvent);
|
|
|
|
installFilteredMouseMove(this.results);
|
|
|
|
this.dropdown.on("mousemove-filtered", resultsSelector, this.bind(this.highlightUnderEvent));
|
|
this.dropdown.on("touchstart touchmove touchend", resultsSelector, this.bind(function (event) {
|
|
this._touchEvent = true;
|
|
this.highlightUnderEvent(event);
|
|
}));
|
|
this.dropdown.on("touchmove", resultsSelector, this.bind(this.touchMoved));
|
|
this.dropdown.on("touchstart touchend", resultsSelector, this.bind(this.clearTouchMoved));
|
|
|
|
// Waiting for a click event on touch devices to select option and hide dropdown
|
|
// otherwise click will be triggered on an underlying element
|
|
this.dropdown.on('click', this.bind(function (event) {
|
|
if (this._touchEvent) {
|
|
this._touchEvent = false;
|
|
this.selectHighlighted();
|
|
}
|
|
}));
|
|
|
|
installDebouncedScroll(80, this.results);
|
|
this.dropdown.on("scroll-debounced", resultsSelector, this.bind(this.loadMoreIfNeeded));
|
|
|
|
// do not propagate change event from the search field out of the component
|
|
$(this.container).on("change", ".select2-input", function(e) {e.stopPropagation();});
|
|
$(this.dropdown).on("change", ".select2-input", function(e) {e.stopPropagation();});
|
|
|
|
// if jquery.mousewheel plugin is installed we can prevent out-of-bounds scrolling of results via mousewheel
|
|
if ($.fn.mousewheel) {
|
|
results.mousewheel(function (e, delta, deltaX, deltaY) {
|
|
var top = results.scrollTop();
|
|
if (deltaY > 0 && top - deltaY <= 0) {
|
|
results.scrollTop(0);
|
|
killEvent(e);
|
|
} else if (deltaY < 0 && results.get(0).scrollHeight - results.scrollTop() + deltaY <= results.height()) {
|
|
results.scrollTop(results.get(0).scrollHeight - results.height());
|
|
killEvent(e);
|
|
}
|
|
});
|
|
}
|
|
|
|
installKeyUpChangeEvent(search);
|
|
search.on("keyup-change input paste", this.bind(this.updateResults));
|
|
search.on("focus", function () { search.addClass("select2-focused"); });
|
|
search.on("blur", function () { search.removeClass("select2-focused");});
|
|
|
|
this.dropdown.on("mouseup", resultsSelector, this.bind(function (e) {
|
|
if ($(e.target).closest(".select2-result-selectable").length > 0) {
|
|
this.highlightUnderEvent(e);
|
|
this.selectHighlighted(e);
|
|
}
|
|
}));
|
|
|
|
// trap all mouse events from leaving the dropdown. sometimes there may be a modal that is listening
|
|
// for mouse events outside of itself so it can close itself. since the dropdown is now outside the select2's
|
|
// dom it will trigger the popup close, which is not what we want
|
|
// focusin can cause focus wars between modals and select2 since the dropdown is outside the modal.
|
|
this.dropdown.on("click mouseup mousedown touchstart touchend focusin", function (e) { e.stopPropagation(); });
|
|
|
|
this.nextSearchTerm = undefined;
|
|
|
|
if ($.isFunction(this.opts.initSelection)) {
|
|
// initialize selection based on the current value of the source element
|
|
this.initSelection();
|
|
|
|
// if the user has provided a function that can set selection based on the value of the source element
|
|
// we monitor the change event on the element and trigger it, allowing for two way synchronization
|
|
this.monitorSource();
|
|
}
|
|
|
|
if (opts.maximumInputLength !== null) {
|
|
this.search.attr("maxlength", opts.maximumInputLength);
|
|
}
|
|
|
|
var disabled = opts.element.prop("disabled");
|
|
if (disabled === undefined) disabled = false;
|
|
this.enable(!disabled);
|
|
|
|
var readonly = opts.element.prop("readonly");
|
|
if (readonly === undefined) readonly = false;
|
|
this.readonly(readonly);
|
|
|
|
// Calculate size of scrollbar
|
|
scrollBarDimensions = scrollBarDimensions || measureScrollbar();
|
|
|
|
this.autofocus = opts.element.prop("autofocus");
|
|
opts.element.prop("autofocus", false);
|
|
if (this.autofocus) this.focus();
|
|
|
|
this.search.attr("placeholder", opts.searchInputPlaceholder);
|
|
},
|
|
|
|
// abstract
|
|
destroy: function () {
|
|
var element=this.opts.element, select2 = element.data("select2");
|
|
|
|
this.close();
|
|
|
|
if (element.length && element[0].detachEvent) {
|
|
element.each(function () {
|
|
this.detachEvent("onpropertychange", this._sync);
|
|
});
|
|
}
|
|
if (this.propertyObserver) {
|
|
this.propertyObserver.disconnect();
|
|
this.propertyObserver = null;
|
|
}
|
|
this._sync = null;
|
|
|
|
if (select2 !== undefined) {
|
|
select2.container.remove();
|
|
select2.liveRegion.remove();
|
|
select2.dropdown.remove();
|
|
element
|
|
.removeClass("select2-offscreen")
|
|
.removeData("select2")
|
|
.off(".select2")
|
|
.prop("autofocus", this.autofocus || false);
|
|
if (this.elementTabIndex) {
|
|
element.attr({tabindex: this.elementTabIndex});
|
|
} else {
|
|
element.removeAttr("tabindex");
|
|
}
|
|
element.show();
|
|
}
|
|
|
|
cleanupJQueryElements.call(this,
|
|
"container",
|
|
"liveRegion",
|
|
"dropdown",
|
|
"results",
|
|
"search"
|
|
);
|
|
},
|
|
|
|
// abstract
|
|
optionToData: function(element) {
|
|
if (element.is("option")) {
|
|
return {
|
|
id:element.prop("value"),
|
|
text:element.text(),
|
|
element: element.get(),
|
|
css: element.attr("class"),
|
|
disabled: element.prop("disabled"),
|
|
locked: equal(element.attr("locked"), "locked") || equal(element.data("locked"), true)
|
|
};
|
|
} else if (element.is("optgroup")) {
|
|
return {
|
|
text:element.attr("label"),
|
|
children:[],
|
|
element: element.get(),
|
|
css: element.attr("class")
|
|
};
|
|
}
|
|
},
|
|
|
|
// abstract
|
|
prepareOpts: function (opts) {
|
|
var element, select, idKey, ajaxUrl, self = this;
|
|
|
|
element = opts.element;
|
|
|
|
if (element.get(0).tagName.toLowerCase() === "select") {
|
|
this.select = select = opts.element;
|
|
}
|
|
|
|
if (select) {
|
|
// these options are not allowed when attached to a select because they are picked up off the element itself
|
|
$.each(["id", "multiple", "ajax", "query", "createSearchChoice", "initSelection", "data", "tags"], function () {
|
|
if (this in opts) {
|
|
throw new Error("Option '" + this + "' is not allowed for Select2 when attached to a <select> element.");
|
|
}
|
|
});
|
|
}
|
|
|
|
opts = $.extend({}, {
|
|
populateResults: function(container, results, query) {
|
|
var populate, id=this.opts.id, liveRegion=this.liveRegion;
|
|
|
|
populate=function(results, container, depth) {
|
|
|
|
var i, l, result, selectable, disabled, compound, node, label, innerContainer, formatted;
|
|
|
|
results = opts.sortResults(results, container, query);
|
|
|
|
for (i = 0, l = results.length; i < l; i = i + 1) {
|
|
|
|
result=results[i];
|
|
|
|
disabled = (result.disabled === true);
|
|
selectable = (!disabled) && (id(result) !== undefined);
|
|
|
|
compound=result.children && result.children.length > 0;
|
|
|
|
node=$("<li></li>");
|
|
node.addClass("select2-results-dept-"+depth);
|
|
node.addClass("select2-result");
|
|
node.addClass(selectable ? "select2-result-selectable" : "select2-result-unselectable");
|
|
if (disabled) { node.addClass("select2-disabled"); }
|
|
if (compound) { node.addClass("select2-result-with-children"); }
|
|
node.addClass(self.opts.formatResultCssClass(result));
|
|
node.attr("role", "presentation");
|
|
|
|
label=$(document.createElement("div"));
|
|
label.addClass("select2-result-label");
|
|
label.attr("id", "select2-result-label-" + nextUid());
|
|
label.attr("role", "option");
|
|
|
|
formatted=opts.formatResult(result, label, query, self.opts.escapeMarkup);
|
|
if (formatted!==undefined) {
|
|
label.html(formatted);
|
|
node.append(label);
|
|
}
|
|
|
|
|
|
if (compound) {
|
|
|
|
innerContainer=$("<ul></ul>");
|
|
innerContainer.addClass("select2-result-sub");
|
|
populate(result.children, innerContainer, depth+1);
|
|
node.append(innerContainer);
|
|
}
|
|
|
|
node.data("select2-data", result);
|
|
container.append(node);
|
|
}
|
|
|
|
liveRegion.text(opts.formatMatches(results.length));
|
|
};
|
|
|
|
populate(results, container, 0);
|
|
}
|
|
}, $.fn.select2.defaults, opts);
|
|
|
|
if (typeof(opts.id) !== "function") {
|
|
idKey = opts.id;
|
|
opts.id = function (e) { return e[idKey]; };
|
|
}
|
|
|
|
if ($.isArray(opts.element.data("select2Tags"))) {
|
|
if ("tags" in opts) {
|
|
throw "tags specified as both an attribute 'data-select2-tags' and in options of Select2 " + opts.element.attr("id");
|
|
}
|
|
opts.tags=opts.element.data("select2Tags");
|
|
}
|
|
|
|
if (select) {
|
|
opts.query = this.bind(function (query) {
|
|
var data = { results: [], more: false },
|
|
term = query.term,
|
|
children, placeholderOption, process;
|
|
|
|
process=function(element, collection) {
|
|
var group;
|
|
if (element.is("option")) {
|
|
if (query.matcher(term, element.text(), element)) {
|
|
collection.push(self.optionToData(element));
|
|
}
|
|
} else if (element.is("optgroup")) {
|
|
group=self.optionToData(element);
|
|
element.children().each2(function(i, elm) { process(elm, group.children); });
|
|
if (group.children.length>0) {
|
|
collection.push(group);
|
|
}
|
|
}
|
|
};
|
|
|
|
children=element.children();
|
|
|
|
// ignore the placeholder option if there is one
|
|
if (this.getPlaceholder() !== undefined && children.length > 0) {
|
|
placeholderOption = this.getPlaceholderOption();
|
|
if (placeholderOption) {
|
|
children=children.not(placeholderOption);
|
|
}
|
|
}
|
|
|
|
children.each2(function(i, elm) { process(elm, data.results); });
|
|
|
|
query.callback(data);
|
|
});
|
|
// this is needed because inside val() we construct choices from options and there id is hardcoded
|
|
opts.id=function(e) { return e.id; };
|
|
} else {
|
|
if (!("query" in opts)) {
|
|
|
|
if ("ajax" in opts) {
|
|
ajaxUrl = opts.element.data("ajax-url");
|
|
if (ajaxUrl && ajaxUrl.length > 0) {
|
|
opts.ajax.url = ajaxUrl;
|
|
}
|
|
opts.query = ajax.call(opts.element, opts.ajax);
|
|
} else if ("data" in opts) {
|
|
opts.query = local(opts.data);
|
|
} else if ("tags" in opts) {
|
|
opts.query = tags(opts.tags);
|
|
if (opts.createSearchChoice === undefined) {
|
|
opts.createSearchChoice = function (term) { return {id: $.trim(term), text: $.trim(term)}; };
|
|
}
|
|
if (opts.initSelection === undefined) {
|
|
opts.initSelection = function (element, callback) {
|
|
var data = [];
|
|
$(splitVal(element.val(), opts.separator)).each(function () {
|
|
var obj = { id: this, text: this },
|
|
tags = opts.tags;
|
|
if ($.isFunction(tags)) tags=tags();
|
|
$(tags).each(function() { if (equal(this.id, obj.id)) { obj = this; return false; } });
|
|
data.push(obj);
|
|
});
|
|
|
|
callback(data);
|
|
};
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (typeof(opts.query) !== "function") {
|
|
throw "query function not defined for Select2 " + opts.element.attr("id");
|
|
}
|
|
|
|
if (opts.createSearchChoicePosition === 'top') {
|
|
opts.createSearchChoicePosition = function(list, item) { list.unshift(item); };
|
|
}
|
|
else if (opts.createSearchChoicePosition === 'bottom') {
|
|
opts.createSearchChoicePosition = function(list, item) { list.push(item); };
|
|
}
|
|
else if (typeof(opts.createSearchChoicePosition) !== "function") {
|
|
throw "invalid createSearchChoicePosition option must be 'top', 'bottom' or a custom function";
|
|
}
|
|
|
|
return opts;
|
|
},
|
|
|
|
/**
|
|
* Monitor the original element for changes and update select2 accordingly
|
|
*/
|
|
// abstract
|
|
monitorSource: function () {
|
|
var el = this.opts.element, observer, self = this;
|
|
|
|
el.on("change.select2", this.bind(function (e) {
|
|
if (this.opts.element.data("select2-change-triggered") !== true) {
|
|
this.initSelection();
|
|
}
|
|
}));
|
|
|
|
this._sync = this.bind(function () {
|
|
|
|
// sync enabled state
|
|
var disabled = el.prop("disabled");
|
|
if (disabled === undefined) disabled = false;
|
|
this.enable(!disabled);
|
|
|
|
var readonly = el.prop("readonly");
|
|
if (readonly === undefined) readonly = false;
|
|
this.readonly(readonly);
|
|
|
|
syncCssClasses(this.container, this.opts.element, this.opts.adaptContainerCssClass);
|
|
this.container.addClass(evaluate(this.opts.containerCssClass, this.opts.element));
|
|
|
|
syncCssClasses(this.dropdown, this.opts.element, this.opts.adaptDropdownCssClass);
|
|
this.dropdown.addClass(evaluate(this.opts.dropdownCssClass, this.opts.element));
|
|
|
|
});
|
|
|
|
// IE8-10 (IE9/10 won't fire propertyChange via attachEventListener)
|
|
if (el.length && el[0].attachEvent) {
|
|
el.each(function() {
|
|
this.attachEvent("onpropertychange", self._sync);
|
|
});
|
|
}
|
|
|
|
// safari, chrome, firefox, IE11
|
|
observer = window.MutationObserver || window.WebKitMutationObserver|| window.MozMutationObserver;
|
|
if (observer !== undefined) {
|
|
if (this.propertyObserver) { delete this.propertyObserver; this.propertyObserver = null; }
|
|
this.propertyObserver = new observer(function (mutations) {
|
|
mutations.forEach(self._sync);
|
|
});
|
|
this.propertyObserver.observe(el.get(0), { attributes:true, subtree:false });
|
|
}
|
|
},
|
|
|
|
// abstract
|
|
triggerSelect: function(data) {
|
|
var evt = $.Event("select2-selecting", { val: this.id(data), object: data });
|
|
this.opts.element.trigger(evt);
|
|
return !evt.isDefaultPrevented();
|
|
},
|
|
|
|
/**
|
|
* Triggers the change event on the source element
|
|
*/
|
|
// abstract
|
|
triggerChange: function (details) {
|
|
|
|
details = details || {};
|
|
details= $.extend({}, details, { type: "change", val: this.val() });
|
|
// prevents recursive triggering
|
|
this.opts.element.data("select2-change-triggered", true);
|
|
this.opts.element.trigger(details);
|
|
this.opts.element.data("select2-change-triggered", false);
|
|
|
|
// some validation frameworks ignore the change event and listen instead to keyup, click for selects
|
|
// so here we trigger the click event manually
|
|
this.opts.element.click();
|
|
|
|
// ValidationEngine ignores the change event and listens instead to blur
|
|
// so here we trigger the blur event manually if so desired
|
|
if (this.opts.blurOnChange)
|
|
this.opts.element.blur();
|
|
},
|
|
|
|
//abstract
|
|
isInterfaceEnabled: function()
|
|
{
|
|
return this.enabledInterface === true;
|
|
},
|
|
|
|
// abstract
|
|
enableInterface: function() {
|
|
var enabled = this._enabled && !this._readonly,
|
|
disabled = !enabled;
|
|
|
|
if (enabled === this.enabledInterface) return false;
|
|
|
|
this.container.toggleClass("select2-container-disabled", disabled);
|
|
this.close();
|
|
this.enabledInterface = enabled;
|
|
|
|
return true;
|
|
},
|
|
|
|
// abstract
|
|
enable: function(enabled) {
|
|
if (enabled === undefined) enabled = true;
|
|
if (this._enabled === enabled) return;
|
|
this._enabled = enabled;
|
|
|
|
this.opts.element.prop("disabled", !enabled);
|
|
this.enableInterface();
|
|
},
|
|
|
|
// abstract
|
|
disable: function() {
|
|
this.enable(false);
|
|
},
|
|
|
|
// abstract
|
|
readonly: function(enabled) {
|
|
if (enabled === undefined) enabled = false;
|
|
if (this._readonly === enabled) return;
|
|
this._readonly = enabled;
|
|
|
|
this.opts.element.prop("readonly", enabled);
|
|
this.enableInterface();
|
|
},
|
|
|
|
// abstract
|
|
opened: function () {
|
|
return this.container.hasClass("select2-dropdown-open");
|
|
},
|
|
|
|
// abstract
|
|
positionDropdown: function() {
|
|
var $dropdown = this.dropdown,
|
|
offset = this.container.offset(),
|
|
height = this.container.outerHeight(false),
|
|
width = this.container.outerWidth(false),
|
|
dropHeight = $dropdown.outerHeight(false),
|
|
$window = $(window),
|
|
windowWidth = $window.width(),
|
|
windowHeight = $window.height(),
|
|
viewPortRight = $window.scrollLeft() + windowWidth,
|
|
viewportBottom = $window.scrollTop() + windowHeight,
|
|
dropTop = offset.top + height,
|
|
dropLeft = offset.left,
|
|
enoughRoomBelow = dropTop + dropHeight <= viewportBottom,
|
|
enoughRoomAbove = (offset.top - dropHeight) >= $window.scrollTop(),
|
|
dropWidth = $dropdown.outerWidth(false),
|
|
enoughRoomOnRight = dropLeft + dropWidth <= viewPortRight,
|
|
aboveNow = $dropdown.hasClass("select2-drop-above"),
|
|
bodyOffset,
|
|
above,
|
|
changeDirection,
|
|
css,
|
|
resultsListNode;
|
|
|
|
// always prefer the current above/below alignment, unless there is not enough room
|
|
if (aboveNow) {
|
|
above = true;
|
|
if (!enoughRoomAbove && enoughRoomBelow) {
|
|
changeDirection = true;
|
|
above = false;
|
|
}
|
|
} else {
|
|
above = false;
|
|
if (!enoughRoomBelow && enoughRoomAbove) {
|
|
changeDirection = true;
|
|
above = true;
|
|
}
|
|
}
|
|
|
|
//if we are changing direction we need to get positions when dropdown is hidden;
|
|
if (changeDirection) {
|
|
$dropdown.hide();
|
|
offset = this.container.offset();
|
|
height = this.container.outerHeight(false);
|
|
width = this.container.outerWidth(false);
|
|
dropHeight = $dropdown.outerHeight(false);
|
|
viewPortRight = $window.scrollLeft() + windowWidth;
|
|
viewportBottom = $window.scrollTop() + windowHeight;
|
|
dropTop = offset.top + height;
|
|
dropLeft = offset.left;
|
|
dropWidth = $dropdown.outerWidth(false);
|
|
enoughRoomOnRight = dropLeft + dropWidth <= viewPortRight;
|
|
$dropdown.show();
|
|
|
|
// fix so the cursor does not move to the left within the search-textbox in IE
|
|
this.focusSearch();
|
|
}
|
|
|
|
if (this.opts.dropdownAutoWidth) {
|
|
resultsListNode = $('.select2-results', $dropdown)[0];
|
|
$dropdown.addClass('select2-drop-auto-width');
|
|
$dropdown.css('width', '');
|
|
// Add scrollbar width to dropdown if vertical scrollbar is present
|
|
dropWidth = $dropdown.outerWidth(false) + (resultsListNode.scrollHeight === resultsListNode.clientHeight ? 0 : scrollBarDimensions.width);
|
|
dropWidth > width ? width = dropWidth : dropWidth = width;
|
|
dropHeight = $dropdown.outerHeight(false);
|
|
enoughRoomOnRight = dropLeft + dropWidth <= viewPortRight;
|
|
}
|
|
else {
|
|
this.container.removeClass('select2-drop-auto-width');
|
|
}
|
|
|
|
//console.log("below/ droptop:", dropTop, "dropHeight", dropHeight, "sum", (dropTop+dropHeight)+" viewport bottom", viewportBottom, "enough?", enoughRoomBelow);
|
|
//console.log("above/ offset.top", offset.top, "dropHeight", dropHeight, "top", (offset.top-dropHeight), "scrollTop", this.body.scrollTop(), "enough?", enoughRoomAbove);
|
|
|
|
// fix positioning when body has an offset and is not position: static
|
|
if (this.body.css('position') !== 'static') {
|
|
bodyOffset = this.body.offset();
|
|
dropTop -= bodyOffset.top;
|
|
dropLeft -= bodyOffset.left;
|
|
}
|
|
|
|
if (!enoughRoomOnRight) {
|
|
dropLeft = offset.left + this.container.outerWidth(false) - dropWidth;
|
|
}
|
|
|
|
css = {
|
|
left: dropLeft,
|
|
width: width
|
|
};
|
|
|
|
if (above) {
|
|
css.top = offset.top - dropHeight;
|
|
css.bottom = 'auto';
|
|
this.container.addClass("select2-drop-above");
|
|
$dropdown.addClass("select2-drop-above");
|
|
}
|
|
else {
|
|
css.top = dropTop;
|
|
css.bottom = 'auto';
|
|
this.container.removeClass("select2-drop-above");
|
|
$dropdown.removeClass("select2-drop-above");
|
|
}
|
|
css = $.extend(css, evaluate(this.opts.dropdownCss, this.opts.element));
|
|
|
|
$dropdown.css(css);
|
|
},
|
|
|
|
// abstract
|
|
shouldOpen: function() {
|
|
var event;
|
|
|
|
if (this.opened()) return false;
|
|
|
|
if (this._enabled === false || this._readonly === true) return false;
|
|
|
|
event = $.Event("select2-opening");
|
|
this.opts.element.trigger(event);
|
|
return !event.isDefaultPrevented();
|
|
},
|
|
|
|
// abstract
|
|
clearDropdownAlignmentPreference: function() {
|
|
// clear the classes used to figure out the preference of where the dropdown should be opened
|
|
this.container.removeClass("select2-drop-above");
|
|
this.dropdown.removeClass("select2-drop-above");
|
|
},
|
|
|
|
/**
|
|
* Opens the dropdown
|
|
*
|
|
* @return {Boolean} whether or not dropdown was opened. This method will return false if, for example,
|
|
* the dropdown is already open, or if the 'open' event listener on the element called preventDefault().
|
|
*/
|
|
// abstract
|
|
open: function () {
|
|
|
|
if (!this.shouldOpen()) return false;
|
|
|
|
this.opening();
|
|
|
|
return true;
|
|
},
|
|
|
|
/**
|
|
* Performs the opening of the dropdown
|
|
*/
|
|
// abstract
|
|
opening: function() {
|
|
var cid = this.containerEventName,
|
|
scroll = "scroll." + cid,
|
|
resize = "resize."+cid,
|
|
orient = "orientationchange."+cid,
|
|
mask;
|
|
|
|
this.container.addClass("select2-dropdown-open").addClass("select2-container-active");
|
|
|
|
this.clearDropdownAlignmentPreference();
|
|
|
|
if(this.dropdown[0] !== this.body.children().last()[0]) {
|
|
this.dropdown.detach().appendTo(this.body);
|
|
}
|
|
|
|
// create the dropdown mask if doesn't already exist
|
|
mask = $("#select2-drop-mask");
|
|
if (mask.length == 0) {
|
|
mask = $(document.createElement("div"));
|
|
mask.attr("id","select2-drop-mask").attr("class","select2-drop-mask");
|
|
mask.hide();
|
|
mask.appendTo(this.body);
|
|
mask.on("mousedown touchstart click", function (e) {
|
|
// Prevent IE from generating a click event on the body
|
|
reinsertElement(mask);
|
|
|
|
var dropdown = $("#select2-drop"), self;
|
|
if (dropdown.length > 0) {
|
|
self=dropdown.data("select2");
|
|
if (self.opts.selectOnBlur) {
|
|
self.selectHighlighted({noFocus: true});
|
|
}
|
|
self.close();
|
|
e.preventDefault();
|
|
e.stopPropagation();
|
|
}
|
|
});
|
|
}
|
|
|
|
// ensure the mask is always right before the dropdown
|
|
if (this.dropdown.prev()[0] !== mask[0]) {
|
|
this.dropdown.before(mask);
|
|
}
|
|
|
|
// move the global id to the correct dropdown
|
|
$("#select2-drop").removeAttr("id");
|
|
this.dropdown.attr("id", "select2-drop");
|
|
|
|
// show the elements
|
|
mask.show();
|
|
|
|
this.positionDropdown();
|
|
this.dropdown.show();
|
|
this.positionDropdown();
|
|
|
|
this.dropdown.addClass("select2-drop-active");
|
|
|
|
// attach listeners to events that can change the position of the container and thus require
|
|
// the position of the dropdown to be updated as well so it does not come unglued from the container
|
|
var that = this;
|
|
this.container.parents().add(window).each(function () {
|
|
$(this).on(resize+" "+scroll+" "+orient, function (e) {
|
|
if (that.opened()) that.positionDropdown();
|
|
});
|
|
});
|
|
|
|
|
|
},
|
|
|
|
// abstract
|
|
close: function () {
|
|
if (!this.opened()) return;
|
|
|
|
var cid = this.containerEventName,
|
|
scroll = "scroll." + cid,
|
|
resize = "resize."+cid,
|
|
orient = "orientationchange."+cid;
|
|
|
|
// unbind event listeners
|
|
this.container.parents().add(window).each(function () { $(this).off(scroll).off(resize).off(orient); });
|
|
|
|
this.clearDropdownAlignmentPreference();
|
|
|
|
$("#select2-drop-mask").hide();
|
|
this.dropdown.removeAttr("id"); // only the active dropdown has the select2-drop id
|
|
this.dropdown.hide();
|
|
this.container.removeClass("select2-dropdown-open").removeClass("select2-container-active");
|
|
this.results.empty();
|
|
|
|
|
|
this.clearSearch();
|
|
this.search.removeClass("select2-active");
|
|
this.opts.element.trigger($.Event("select2-close"));
|
|
},
|
|
|
|
/**
|
|
* Opens control, sets input value, and updates results.
|
|
*/
|
|
// abstract
|
|
externalSearch: function (term) {
|
|
this.open();
|
|
this.search.val(term);
|
|
this.updateResults(false);
|
|
},
|
|
|
|
// abstract
|
|
clearSearch: function () {
|
|
|
|
},
|
|
|
|
//abstract
|
|
getMaximumSelectionSize: function() {
|
|
return evaluate(this.opts.maximumSelectionSize, this.opts.element);
|
|
},
|
|
|
|
// abstract
|
|
ensureHighlightVisible: function () {
|
|
var results = this.results, children, index, child, hb, rb, y, more;
|
|
|
|
index = this.highlight();
|
|
|
|
if (index < 0) return;
|
|
|
|
if (index == 0) {
|
|
|
|
// if the first element is highlighted scroll all the way to the top,
|
|
// that way any unselectable headers above it will also be scrolled
|
|
// into view
|
|
|
|
results.scrollTop(0);
|
|
return;
|
|
}
|
|
|
|
children = this.findHighlightableChoices().find('.select2-result-label');
|
|
|
|
child = $(children[index]);
|
|
|
|
hb = child.offset().top + child.outerHeight(true);
|
|
|
|
// if this is the last child lets also make sure select2-more-results is visible
|
|
if (index === children.length - 1) {
|
|
more = results.find("li.select2-more-results");
|
|
if (more.length > 0) {
|
|
hb = more.offset().top + more.outerHeight(true);
|
|
}
|
|
}
|
|
|
|
rb = results.offset().top + results.outerHeight(true);
|
|
if (hb > rb) {
|
|
results.scrollTop(results.scrollTop() + (hb - rb));
|
|
}
|
|
y = child.offset().top - results.offset().top;
|
|
|
|
// make sure the top of the element is visible
|
|
if (y < 0 && child.css('display') != 'none' ) {
|
|
results.scrollTop(results.scrollTop() + y); // y is negative
|
|
}
|
|
},
|
|
|
|
// abstract
|
|
findHighlightableChoices: function() {
|
|
return this.results.find(".select2-result-selectable:not(.select2-disabled):not(.select2-selected)");
|
|
},
|
|
|
|
// abstract
|
|
moveHighlight: function (delta) {
|
|
var choices = this.findHighlightableChoices(),
|
|
index = this.highlight();
|
|
|
|
while (index > -1 && index < choices.length) {
|
|
index += delta;
|
|
var choice = $(choices[index]);
|
|
if (choice.hasClass("select2-result-selectable") && !choice.hasClass("select2-disabled") && !choice.hasClass("select2-selected")) {
|
|
this.highlight(index);
|
|
break;
|
|
}
|
|
}
|
|
},
|
|
|
|
// abstract
|
|
highlight: function (index) {
|
|
var choices = this.findHighlightableChoices(),
|
|
choice,
|
|
data;
|
|
|
|
if (arguments.length === 0) {
|
|
return indexOf(choices.filter(".select2-highlighted")[0], choices.get());
|
|
}
|
|
|
|
if (index >= choices.length) index = choices.length - 1;
|
|
if (index < 0) index = 0;
|
|
|
|
this.removeHighlight();
|
|
|
|
choice = $(choices[index]);
|
|
choice.addClass("select2-highlighted");
|
|
|
|
// ensure assistive technology can determine the active choice
|
|
this.search.attr("aria-activedescendant", choice.find(".select2-result-label").attr("id"));
|
|
|
|
this.ensureHighlightVisible();
|
|
|
|
this.liveRegion.text(choice.text());
|
|
|
|
data = choice.data("select2-data");
|
|
if (data) {
|
|
this.opts.element.trigger({ type: "select2-highlight", val: this.id(data), choice: data });
|
|
}
|
|
},
|
|
|
|
removeHighlight: function() {
|
|
this.results.find(".select2-highlighted").removeClass("select2-highlighted");
|
|
},
|
|
|
|
touchMoved: function() {
|
|
this._touchMoved = true;
|
|
},
|
|
|
|
clearTouchMoved: function() {
|
|
this._touchMoved = false;
|
|
},
|
|
|
|
// abstract
|
|
countSelectableResults: function() {
|
|
return this.findHighlightableChoices().length;
|
|
},
|
|
|
|
// abstract
|
|
highlightUnderEvent: function (event) {
|
|
var el = $(event.target).closest(".select2-result-selectable");
|
|
if (el.length > 0 && !el.is(".select2-highlighted")) {
|
|
var choices = this.findHighlightableChoices();
|
|
this.highlight(choices.index(el));
|
|
} else if (el.length == 0) {
|
|
// if we are over an unselectable item remove all highlights
|
|
this.removeHighlight();
|
|
}
|
|
},
|
|
|
|
// abstract
|
|
loadMoreIfNeeded: function () {
|
|
var results = this.results,
|
|
more = results.find("li.select2-more-results"),
|
|
below, // pixels the element is below the scroll fold, below==0 is when the element is starting to be visible
|
|
page = this.resultsPage + 1,
|
|
self=this,
|
|
term=this.search.val(),
|
|
context=this.context;
|
|
|
|
if (more.length === 0) return;
|
|
below = more.offset().top - results.offset().top - results.height();
|
|
|
|
if (below <= this.opts.loadMorePadding) {
|
|
more.addClass("select2-active");
|
|
this.opts.query({
|
|
element: this.opts.element,
|
|
term: term,
|
|
page: page,
|
|
context: context,
|
|
matcher: this.opts.matcher,
|
|
callback: this.bind(function (data) {
|
|
|
|
// ignore a response if the select2 has been closed before it was received
|
|
if (!self.opened()) return;
|
|
|
|
|
|
self.opts.populateResults.call(this, results, data.results, {term: term, page: page, context:context});
|
|
self.postprocessResults(data, false, false);
|
|
|
|
if (data.more===true) {
|
|
more.detach().appendTo(results).text(evaluate(self.opts.formatLoadMore, self.opts.element, page+1));
|
|
window.setTimeout(function() { self.loadMoreIfNeeded(); }, 10);
|
|
} else {
|
|
more.remove();
|
|
}
|
|
self.positionDropdown();
|
|
self.resultsPage = page;
|
|
self.context = data.context;
|
|
this.opts.element.trigger({ type: "select2-loaded", items: data });
|
|
})});
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Default tokenizer function which does nothing
|
|
*/
|
|
tokenize: function() {
|
|
|
|
},
|
|
|
|
/**
|
|
* @param initial whether or not this is the call to this method right after the dropdown has been opened
|
|
*/
|
|
// abstract
|
|
updateResults: function (initial) {
|
|
var search = this.search,
|
|
results = this.results,
|
|
opts = this.opts,
|
|
data,
|
|
self = this,
|
|
input,
|
|
term = search.val(),
|
|
lastTerm = $.data(this.container, "select2-last-term"),
|
|
// sequence number used to drop out-of-order responses
|
|
queryNumber;
|
|
|
|
// prevent duplicate queries against the same term
|
|
if (initial !== true && lastTerm && equal(term, lastTerm)) return;
|
|
|
|
$.data(this.container, "select2-last-term", term);
|
|
|
|
// if the search is currently hidden we do not alter the results
|
|
if (initial !== true && (this.showSearchInput === false || !this.opened())) {
|
|
return;
|
|
}
|
|
|
|
function postRender() {
|
|
search.removeClass("select2-active");
|
|
self.positionDropdown();
|
|
if (results.find('.select2-no-results,.select2-selection-limit,.select2-searching').length) {
|
|
self.liveRegion.text(results.text());
|
|
}
|
|
else {
|
|
self.liveRegion.text(self.opts.formatMatches(results.find('.select2-result-selectable').length));
|
|
}
|
|
}
|
|
|
|
function render(html) {
|
|
results.html(html);
|
|
postRender();
|
|
}
|
|
|
|
queryNumber = ++this.queryCount;
|
|
|
|
var maxSelSize = this.getMaximumSelectionSize();
|
|
if (maxSelSize >=1) {
|
|
data = this.data();
|
|
if ($.isArray(data) && data.length >= maxSelSize && checkFormatter(opts.formatSelectionTooBig, "formatSelectionTooBig")) {
|
|
render("<li class='select2-selection-limit'>" + evaluate(opts.formatSelectionTooBig, opts.element, maxSelSize) + "</li>");
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (search.val().length < opts.minimumInputLength) {
|
|
if (checkFormatter(opts.formatInputTooShort, "formatInputTooShort")) {
|
|
render("<li class='select2-no-results'>" + evaluate(opts.formatInputTooShort, opts.element, search.val(), opts.minimumInputLength) + "</li>");
|
|
} else {
|
|
render("");
|
|
}
|
|
if (initial && this.showSearch) this.showSearch(true);
|
|
return;
|
|
}
|
|
|
|
if (opts.maximumInputLength && search.val().length > opts.maximumInputLength) {
|
|
if (checkFormatter(opts.formatInputTooLong, "formatInputTooLong")) {
|
|
render("<li class='select2-no-results'>" + evaluate(opts.formatInputTooLong, opts.element, search.val(), opts.maximumInputLength) + "</li>");
|
|
} else {
|
|
render("");
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (opts.formatSearching && this.findHighlightableChoices().length === 0) {
|
|
render("<li class='select2-searching'>" + evaluate(opts.formatSearching, opts.element) + "</li>");
|
|
}
|
|
|
|
search.addClass("select2-active");
|
|
|
|
this.removeHighlight();
|
|
|
|
// give the tokenizer a chance to pre-process the input
|
|
input = this.tokenize();
|
|
if (input != undefined && input != null) {
|
|
search.val(input);
|
|
}
|
|
|
|
this.resultsPage = 1;
|
|
|
|
opts.query({
|
|
element: opts.element,
|
|
term: search.val(),
|
|
page: this.resultsPage,
|
|
context: null,
|
|
matcher: opts.matcher,
|
|
callback: this.bind(function (data) {
|
|
var def; // default choice
|
|
|
|
// ignore old responses
|
|
if (queryNumber != this.queryCount) {
|
|
return;
|
|
}
|
|
|
|
// ignore a response if the select2 has been closed before it was received
|
|
if (!this.opened()) {
|
|
this.search.removeClass("select2-active");
|
|
return;
|
|
}
|
|
|
|
// save context, if any
|
|
this.context = (data.context===undefined) ? null : data.context;
|
|
// create a default choice and prepend it to the list
|
|
if (this.opts.createSearchChoice && search.val() !== "") {
|
|
def = this.opts.createSearchChoice.call(self, search.val(), data.results);
|
|
if (def !== undefined && def !== null && self.id(def) !== undefined && self.id(def) !== null) {
|
|
if ($(data.results).filter(
|
|
function () {
|
|
return equal(self.id(this), self.id(def));
|
|
}).length === 0) {
|
|
this.opts.createSearchChoicePosition(data.results, def);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (data.results.length === 0 && checkFormatter(opts.formatNoMatches, "formatNoMatches")) {
|
|
render("<li class='select2-no-results'>" + evaluate(opts.formatNoMatches, opts.element, search.val()) + "</li>");
|
|
return;
|
|
}
|
|
|
|
results.empty();
|
|
self.opts.populateResults.call(this, results, data.results, {term: search.val(), page: this.resultsPage, context:null});
|
|
|
|
if (data.more === true && checkFormatter(opts.formatLoadMore, "formatLoadMore")) {
|
|
results.append("<li class='select2-more-results'>" + opts.escapeMarkup(evaluate(opts.formatLoadMore, opts.element, this.resultsPage)) + "</li>");
|
|
window.setTimeout(function() { self.loadMoreIfNeeded(); }, 10);
|
|
}
|
|
|
|
this.postprocessResults(data, initial);
|
|
|
|
postRender();
|
|
|
|
this.opts.element.trigger({ type: "select2-loaded", items: data });
|
|
})});
|
|
},
|
|
|
|
// abstract
|
|
cancel: function () {
|
|
this.close();
|
|
},
|
|
|
|
// abstract
|
|
blur: function () {
|
|
// if selectOnBlur == true, select the currently highlighted option
|
|
if (this.opts.selectOnBlur)
|
|
this.selectHighlighted({noFocus: true});
|
|
|
|
this.close();
|
|
this.container.removeClass("select2-container-active");
|
|
// synonymous to .is(':focus'), which is available in jquery >= 1.6
|
|
if (this.search[0] === document.activeElement) { this.search.blur(); }
|
|
this.clearSearch();
|
|
this.selection.find(".select2-search-choice-focus").removeClass("select2-search-choice-focus");
|
|
},
|
|
|
|
// abstract
|
|
focusSearch: function () {
|
|
focus(this.search);
|
|
},
|
|
|
|
// abstract
|
|
selectHighlighted: function (options) {
|
|
if (this._touchMoved) {
|
|
this.clearTouchMoved();
|
|
return;
|
|
}
|
|
var index=this.highlight(),
|
|
highlighted=this.results.find(".select2-highlighted"),
|
|
data = highlighted.closest('.select2-result').data("select2-data");
|
|
|
|
if (data) {
|
|
this.highlight(index);
|
|
this.onSelect(data, options);
|
|
} else if (options && options.noFocus) {
|
|
this.close();
|
|
}
|
|
},
|
|
|
|
// abstract
|
|
getPlaceholder: function () {
|
|
var placeholderOption;
|
|
return this.opts.element.attr("placeholder") ||
|
|
this.opts.element.attr("data-placeholder") || // jquery 1.4 compat
|
|
this.opts.element.data("placeholder") ||
|
|
this.opts.placeholder ||
|
|
((placeholderOption = this.getPlaceholderOption()) !== undefined ? placeholderOption.text() : undefined);
|
|
},
|
|
|
|
// abstract
|
|
getPlaceholderOption: function() {
|
|
if (this.select) {
|
|
var firstOption = this.select.children('option').first();
|
|
if (this.opts.placeholderOption !== undefined ) {
|
|
//Determine the placeholder option based on the specified placeholderOption setting
|
|
return (this.opts.placeholderOption === "first" && firstOption) ||
|
|
(typeof this.opts.placeholderOption === "function" && this.opts.placeholderOption(this.select));
|
|
} else if ($.trim(firstOption.text()) === "" && firstOption.val() === "") {
|
|
//No explicit placeholder option specified, use the first if it's blank
|
|
return firstOption;
|
|
}
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Get the desired width for the container element. This is
|
|
* derived first from option `width` passed to select2, then
|
|
* the inline 'style' on the original element, and finally
|
|
* falls back to the jQuery calculated element width.
|
|
*/
|
|
// abstract
|
|
initContainerWidth: function () {
|
|
function resolveContainerWidth() {
|
|
var style, attrs, matches, i, l, attr;
|
|
|
|
if (this.opts.width === "off") {
|
|
return null;
|
|
} else if (this.opts.width === "element"){
|
|
return this.opts.element.outerWidth(false) === 0 ? 'auto' : this.opts.element.outerWidth(false) + 'px';
|
|
} else if (this.opts.width === "copy" || this.opts.width === "resolve") {
|
|
// check if there is inline style on the element that contains width
|
|
style = this.opts.element.attr('style');
|
|
if (style !== undefined) {
|
|
attrs = style.split(';');
|
|
for (i = 0, l = attrs.length; i < l; i = i + 1) {
|
|
attr = attrs[i].replace(/\s/g, '');
|
|
matches = attr.match(/^width:(([-+]?([0-9]*\.)?[0-9]+)(px|em|ex|%|in|cm|mm|pt|pc))/i);
|
|
if (matches !== null && matches.length >= 1)
|
|
return matches[1];
|
|
}
|
|
}
|
|
|
|
if (this.opts.width === "resolve") {
|
|
// next check if css('width') can resolve a width that is percent based, this is sometimes possible
|
|
// when attached to input type=hidden or elements hidden via css
|
|
style = this.opts.element.css('width');
|
|
if (style.indexOf("%") > 0) return style;
|
|
|
|
// finally, fallback on the calculated width of the element
|
|
return (this.opts.element.outerWidth(false) === 0 ? 'auto' : this.opts.element.outerWidth(false) + 'px');
|
|
}
|
|
|
|
return null;
|
|
} else if ($.isFunction(this.opts.width)) {
|
|
return this.opts.width();
|
|
} else {
|
|
return this.opts.width;
|
|
}
|
|
};
|
|
|
|
var width = resolveContainerWidth.call(this);
|
|
if (width !== null) {
|
|
this.container.css("width", width);
|
|
}
|
|
}
|
|
});
|
|
|
|
SingleSelect2 = clazz(AbstractSelect2, {
|
|
|
|
// single
|
|
|
|
createContainer: function () {
|
|
var container = $(document.createElement("div")).attr({
|
|
"class": "select2-container"
|
|
}).html([
|
|
"<a href='javascript:void(0)' class='select2-choice' tabindex='-1'>",
|
|
" <span class='select2-chosen'> </span><abbr class='select2-search-choice-close'></abbr>",
|
|
" <span class='select2-arrow' role='presentation'><b role='presentation'></b></span>",
|
|
"</a>",
|
|
"<label for='' class='select2-offscreen'></label>",
|
|
"<input class='select2-focusser select2-offscreen' type='text' aria-haspopup='true' role='button' />",
|
|
"<div class='select2-drop select2-display-none'>",
|
|
" <div class='select2-search'>",
|
|
" <label for='' class='select2-offscreen'></label>",
|
|
" <input type='text' autocomplete='off' autocorrect='off' autocapitalize='off' spellcheck='false' class='select2-input' role='combobox' aria-expanded='true'",
|
|
" aria-autocomplete='list' />",
|
|
" </div>",
|
|
" <ul class='select2-results' role='listbox'>",
|
|
" </ul>",
|
|
"</div>"].join(""));
|
|
return container;
|
|
},
|
|
|
|
// single
|
|
enableInterface: function() {
|
|
if (this.parent.enableInterface.apply(this, arguments)) {
|
|
this.focusser.prop("disabled", !this.isInterfaceEnabled());
|
|
}
|
|
},
|
|
|
|
// single
|
|
opening: function () {
|
|
var el, range, len;
|
|
|
|
if (this.opts.minimumResultsForSearch >= 0) {
|
|
this.showSearch(true);
|
|
}
|
|
|
|
this.parent.opening.apply(this, arguments);
|
|
|
|
if (this.showSearchInput !== false) {
|
|
// IE appends focusser.val() at the end of field :/ so we manually insert it at the beginning using a range
|
|
// all other browsers handle this just fine
|
|
|
|
this.search.val(this.focusser.val());
|
|
}
|
|
if (this.opts.shouldFocusInput(this)) {
|
|
this.search.focus();
|
|
// move the cursor to the end after focussing, otherwise it will be at the beginning and
|
|
// new text will appear *before* focusser.val()
|
|
el = this.search.get(0);
|
|
if (el.createTextRange) {
|
|
range = el.createTextRange();
|
|
range.collapse(false);
|
|
range.select();
|
|
} else if (el.setSelectionRange) {
|
|
len = this.search.val().length;
|
|
el.setSelectionRange(len, len);
|
|
}
|
|
}
|
|
|
|
// initializes search's value with nextSearchTerm (if defined by user)
|
|
// ignore nextSearchTerm if the dropdown is opened by the user pressing a letter
|
|
if(this.search.val() === "") {
|
|
if(this.nextSearchTerm != undefined){
|
|
this.search.val(this.nextSearchTerm);
|
|
this.search.select();
|
|
}
|
|
}
|
|
|
|
this.focusser.prop("disabled", true).val("");
|
|
this.updateResults(true);
|
|
this.opts.element.trigger($.Event("select2-open"));
|
|
},
|
|
|
|
// single
|
|
close: function () {
|
|
if (!this.opened()) return;
|
|
this.parent.close.apply(this, arguments);
|
|
|
|
this.focusser.prop("disabled", false);
|
|
|
|
if (this.opts.shouldFocusInput(this)) {
|
|
this.focusser.focus();
|
|
}
|
|
},
|
|
|
|
// single
|
|
focus: function () {
|
|
if (this.opened()) {
|
|
this.close();
|
|
} else {
|
|
this.focusser.prop("disabled", false);
|
|
if (this.opts.shouldFocusInput(this)) {
|
|
this.focusser.focus();
|
|
}
|
|
}
|
|
},
|
|
|
|
// single
|
|
isFocused: function () {
|
|
return this.container.hasClass("select2-container-active");
|
|
},
|
|
|
|
// single
|
|
cancel: function () {
|
|
this.parent.cancel.apply(this, arguments);
|
|
this.focusser.prop("disabled", false);
|
|
|
|
if (this.opts.shouldFocusInput(this)) {
|
|
this.focusser.focus();
|
|
}
|
|
},
|
|
|
|
// single
|
|
destroy: function() {
|
|
$("label[for='" + this.focusser.attr('id') + "']")
|
|
.attr('for', this.opts.element.attr("id"));
|
|
this.parent.destroy.apply(this, arguments);
|
|
|
|
cleanupJQueryElements.call(this,
|
|
"selection",
|
|
"focusser"
|
|
);
|
|
},
|
|
|
|
// single
|
|
initContainer: function () {
|
|
|
|
var selection,
|
|
container = this.container,
|
|
dropdown = this.dropdown,
|
|
idSuffix = nextUid(),
|
|
elementLabel;
|
|
|
|
if (this.opts.minimumResultsForSearch < 0) {
|
|
this.showSearch(false);
|
|
} else {
|
|
this.showSearch(true);
|
|
}
|
|
|
|
this.selection = selection = container.find(".select2-choice");
|
|
|
|
this.focusser = container.find(".select2-focusser");
|
|
|
|
// add aria associations
|
|
selection.find(".select2-chosen").attr("id", "select2-chosen-"+idSuffix);
|
|
this.focusser.attr("aria-labelledby", "select2-chosen-"+idSuffix);
|
|
this.results.attr("id", "select2-results-"+idSuffix);
|
|
this.search.attr("aria-owns", "select2-results-"+idSuffix);
|
|
|
|
// rewrite labels from original element to focusser
|
|
this.focusser.attr("id", "s2id_autogen"+idSuffix);
|
|
|
|
elementLabel = $("label[for='" + this.opts.element.attr("id") + "']");
|
|
|
|
this.focusser.prev()
|
|
.text(elementLabel.text())
|
|
.attr('for', this.focusser.attr('id'));
|
|
|
|
// Ensure the original element retains an accessible name
|
|
var originalTitle = this.opts.element.attr("title");
|
|
this.opts.element.attr("title", (originalTitle || elementLabel.text()));
|
|
|
|
this.focusser.attr("tabindex", this.elementTabIndex);
|
|
|
|
// write label for search field using the label from the focusser element
|
|
this.search.attr("id", this.focusser.attr('id') + '_search');
|
|
|
|
this.search.prev()
|
|
.text($("label[for='" + this.focusser.attr('id') + "']").text())
|
|
.attr('for', this.search.attr('id'));
|
|
|
|
this.search.on("keydown", this.bind(function (e) {
|
|
if (!this.isInterfaceEnabled()) return;
|
|
|
|
if (e.which === KEY.PAGE_UP || e.which === KEY.PAGE_DOWN) {
|
|
// prevent the page from scrolling
|
|
killEvent(e);
|
|
return;
|
|
}
|
|
|
|
switch (e.which) {
|
|
case KEY.UP:
|
|
case KEY.DOWN:
|
|
this.moveHighlight((e.which === KEY.UP) ? -1 : 1);
|
|
killEvent(e);
|
|
return;
|
|
case KEY.ENTER:
|
|
this.selectHighlighted();
|
|
killEvent(e);
|
|
return;
|
|
case KEY.TAB:
|
|
this.selectHighlighted({noFocus: true});
|
|
return;
|
|
case KEY.ESC:
|
|
this.cancel(e);
|
|
killEvent(e);
|
|
return;
|
|
}
|
|
}));
|
|
|
|
this.search.on("blur", this.bind(function(e) {
|
|
// a workaround for chrome to keep the search field focussed when the scroll bar is used to scroll the dropdown.
|
|
// without this the search field loses focus which is annoying
|
|
if (document.activeElement === this.body.get(0)) {
|
|
window.setTimeout(this.bind(function() {
|
|
if (this.opened()) {
|
|
this.search.focus();
|
|
}
|
|
}), 0);
|
|
}
|
|
}));
|
|
|
|
this.focusser.on("keydown", this.bind(function (e) {
|
|
if (!this.isInterfaceEnabled()) return;
|
|
|
|
if (e.which === KEY.TAB || KEY.isControl(e) || KEY.isFunctionKey(e) || e.which === KEY.ESC) {
|
|
return;
|
|
}
|
|
|
|
if (this.opts.openOnEnter === false && e.which === KEY.ENTER) {
|
|
killEvent(e);
|
|
return;
|
|
}
|
|
|
|
if (e.which == KEY.DOWN || e.which == KEY.UP
|
|
|| (e.which == KEY.ENTER && this.opts.openOnEnter)) {
|
|
|
|
if (e.altKey || e.ctrlKey || e.shiftKey || e.metaKey) return;
|
|
|
|
this.open();
|
|
killEvent(e);
|
|
return;
|
|
}
|
|
|
|
if (e.which == KEY.DELETE || e.which == KEY.BACKSPACE) {
|
|
if (this.opts.allowClear) {
|
|
this.clear();
|
|
}
|
|
killEvent(e);
|
|
return;
|
|
}
|
|
}));
|
|
|
|
|
|
installKeyUpChangeEvent(this.focusser);
|
|
this.focusser.on("keyup-change input", this.bind(function(e) {
|
|
if (this.opts.minimumResultsForSearch >= 0) {
|
|
e.stopPropagation();
|
|
if (this.opened()) return;
|
|
this.open();
|
|
}
|
|
}));
|
|
|
|
selection.on("mousedown touchstart", "abbr", this.bind(function (e) {
|
|
if (!this.isInterfaceEnabled()) return;
|
|
this.clear();
|
|
killEventImmediately(e);
|
|
this.close();
|
|
this.selection.focus();
|
|
}));
|
|
|
|
selection.on("mousedown touchstart", this.bind(function (e) {
|
|
// Prevent IE from generating a click event on the body
|
|
reinsertElement(selection);
|
|
|
|
if (!this.container.hasClass("select2-container-active")) {
|
|
this.opts.element.trigger($.Event("select2-focus"));
|
|
}
|
|
|
|
if (this.opened()) {
|
|
this.close();
|
|
} else if (this.isInterfaceEnabled()) {
|
|
this.open();
|
|
}
|
|
|
|
killEvent(e);
|
|
}));
|
|
|
|
dropdown.on("mousedown touchstart", this.bind(function() {
|
|
if (this.opts.shouldFocusInput(this)) {
|
|
this.search.focus();
|
|
}
|
|
}));
|
|
|
|
selection.on("focus", this.bind(function(e) {
|
|
killEvent(e);
|
|
}));
|
|
|
|
this.focusser.on("focus", this.bind(function(){
|
|
if (!this.container.hasClass("select2-container-active")) {
|
|
this.opts.element.trigger($.Event("select2-focus"));
|
|
}
|
|
this.container.addClass("select2-container-active");
|
|
})).on("blur", this.bind(function() {
|
|
if (!this.opened()) {
|
|
this.container.removeClass("select2-container-active");
|
|
this.opts.element.trigger($.Event("select2-blur"));
|
|
}
|
|
}));
|
|
this.search.on("focus", this.bind(function(){
|
|
if (!this.container.hasClass("select2-container-active")) {
|
|
this.opts.element.trigger($.Event("select2-focus"));
|
|
}
|
|
this.container.addClass("select2-container-active");
|
|
}));
|
|
|
|
this.initContainerWidth();
|
|
this.opts.element.addClass("select2-offscreen");
|
|
this.setPlaceholder();
|
|
|
|
},
|
|
|
|
// single
|
|
clear: function(triggerChange) {
|
|
var data=this.selection.data("select2-data");
|
|
if (data) { // guard against queued quick consecutive clicks
|
|
var evt = $.Event("select2-clearing");
|
|
this.opts.element.trigger(evt);
|
|
if (evt.isDefaultPrevented()) {
|
|
return;
|
|
}
|
|
var placeholderOption = this.getPlaceholderOption();
|
|
this.opts.element.val(placeholderOption ? placeholderOption.val() : "");
|
|
this.selection.find(".select2-chosen").empty();
|
|
this.selection.removeData("select2-data");
|
|
this.setPlaceholder();
|
|
|
|
if (triggerChange !== false){
|
|
this.opts.element.trigger({ type: "select2-removed", val: this.id(data), choice: data });
|
|
this.triggerChange({removed:data});
|
|
}
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Sets selection based on source element's value
|
|
*/
|
|
// single
|
|
initSelection: function () {
|
|
var selected;
|
|
if (this.isPlaceholderOptionSelected()) {
|
|
this.updateSelection(null);
|
|
this.close();
|
|
this.setPlaceholder();
|
|
} else {
|
|
var self = this;
|
|
this.opts.initSelection.call(null, this.opts.element, function(selected){
|
|
if (selected !== undefined && selected !== null) {
|
|
self.updateSelection(selected);
|
|
self.close();
|
|
self.setPlaceholder();
|
|
self.nextSearchTerm = self.opts.nextSearchTerm(selected, self.search.val());
|
|
}
|
|
});
|
|
}
|
|
},
|
|
|
|
isPlaceholderOptionSelected: function() {
|
|
var placeholderOption;
|
|
if (this.getPlaceholder() === undefined) return false; // no placeholder specified so no option should be considered
|
|
return ((placeholderOption = this.getPlaceholderOption()) !== undefined && placeholderOption.prop("selected"))
|
|
|| (this.opts.element.val() === "")
|
|
|| (this.opts.element.val() === undefined)
|
|
|| (this.opts.element.val() === null);
|
|
},
|
|
|
|
// single
|
|
prepareOpts: function () {
|
|
var opts = this.parent.prepareOpts.apply(this, arguments),
|
|
self=this;
|
|
|
|
if (opts.element.get(0).tagName.toLowerCase() === "select") {
|
|
// install the selection initializer
|
|
opts.initSelection = function (element, callback) {
|
|
var selected = element.find("option").filter(function() { return this.selected && !this.disabled });
|
|
// a single select box always has a value, no need to null check 'selected'
|
|
callback(self.optionToData(selected));
|
|
};
|
|
} else if ("data" in opts) {
|
|
// install default initSelection when applied to hidden input and data is local
|
|
opts.initSelection = opts.initSelection || function (element, callback) {
|
|
var id = element.val();
|
|
//search in data by id, storing the actual matching item
|
|
var match = null;
|
|
opts.query({
|
|
matcher: function(term, text, el){
|
|
var is_match = equal(id, opts.id(el));
|
|
if (is_match) {
|
|
match = el;
|
|
}
|
|
return is_match;
|
|
},
|
|
callback: !$.isFunction(callback) ? $.noop : function() {
|
|
callback(match);
|
|
}
|
|
});
|
|
};
|
|
}
|
|
|
|
return opts;
|
|
},
|
|
|
|
// single
|
|
getPlaceholder: function() {
|
|
// if a placeholder is specified on a single select without a valid placeholder option ignore it
|
|
if (this.select) {
|
|
if (this.getPlaceholderOption() === undefined) {
|
|
return undefined;
|
|
}
|
|
}
|
|
|
|
return this.parent.getPlaceholder.apply(this, arguments);
|
|
},
|
|
|
|
// single
|
|
setPlaceholder: function () {
|
|
var placeholder = this.getPlaceholder();
|
|
|
|
if (this.isPlaceholderOptionSelected() && placeholder !== undefined) {
|
|
|
|
// check for a placeholder option if attached to a select
|
|
if (this.select && this.getPlaceholderOption() === undefined) return;
|
|
|
|
this.selection.find(".select2-chosen").html(this.opts.escapeMarkup(placeholder));
|
|
|
|
this.selection.addClass("select2-default");
|
|
|
|
this.container.removeClass("select2-allowclear");
|
|
}
|
|
},
|
|
|
|
// single
|
|
postprocessResults: function (data, initial, noHighlightUpdate) {
|
|
var selected = 0, self = this, showSearchInput = true;
|
|
|
|
// find the selected element in the result list
|
|
|
|
this.findHighlightableChoices().each2(function (i, elm) {
|
|
if (equal(self.id(elm.data("select2-data")), self.opts.element.val())) {
|
|
selected = i;
|
|
return false;
|
|
}
|
|
});
|
|
|
|
// and highlight it
|
|
if (noHighlightUpdate !== false) {
|
|
if (initial === true && selected >= 0) {
|
|
this.highlight(selected);
|
|
} else {
|
|
this.highlight(0);
|
|
}
|
|
}
|
|
|
|
// hide the search box if this is the first we got the results and there are enough of them for search
|
|
|
|
if (initial === true) {
|
|
var min = this.opts.minimumResultsForSearch;
|
|
if (min >= 0) {
|
|
this.showSearch(countResults(data.results) >= min);
|
|
}
|
|
}
|
|
},
|
|
|
|
// single
|
|
showSearch: function(showSearchInput) {
|
|
if (this.showSearchInput === showSearchInput) return;
|
|
|
|
this.showSearchInput = showSearchInput;
|
|
|
|
this.dropdown.find(".select2-search").toggleClass("select2-search-hidden", !showSearchInput);
|
|
this.dropdown.find(".select2-search").toggleClass("select2-offscreen", !showSearchInput);
|
|
//add "select2-with-searchbox" to the container if search box is shown
|
|
$(this.dropdown, this.container).toggleClass("select2-with-searchbox", showSearchInput);
|
|
},
|
|
|
|
// single
|
|
onSelect: function (data, options) {
|
|
|
|
if (!this.triggerSelect(data)) { return; }
|
|
|
|
var old = this.opts.element.val(),
|
|
oldData = this.data();
|
|
|
|
this.opts.element.val(this.id(data));
|
|
this.updateSelection(data);
|
|
|
|
this.opts.element.trigger({ type: "select2-selected", val: this.id(data), choice: data });
|
|
|
|
this.nextSearchTerm = this.opts.nextSearchTerm(data, this.search.val());
|
|
this.close();
|
|
|
|
if ((!options || !options.noFocus) && this.opts.shouldFocusInput(this)) {
|
|
this.focusser.focus();
|
|
}
|
|
|
|
if (!equal(old, this.id(data))) {
|
|
this.triggerChange({ added: data, removed: oldData });
|
|
}
|
|
},
|
|
|
|
// single
|
|
updateSelection: function (data) {
|
|
|
|
var container=this.selection.find(".select2-chosen"), formatted, cssClass;
|
|
|
|
this.selection.data("select2-data", data);
|
|
|
|
container.empty();
|
|
if (data !== null) {
|
|
formatted=this.opts.formatSelection(data, container, this.opts.escapeMarkup);
|
|
}
|
|
if (formatted !== undefined) {
|
|
container.append(formatted);
|
|
}
|
|
cssClass=this.opts.formatSelectionCssClass(data, container);
|
|
if (cssClass !== undefined) {
|
|
container.addClass(cssClass);
|
|
}
|
|
|
|
this.selection.removeClass("select2-default");
|
|
|
|
if (this.opts.allowClear && this.getPlaceholder() !== undefined) {
|
|
this.container.addClass("select2-allowclear");
|
|
}
|
|
},
|
|
|
|
// single
|
|
val: function () {
|
|
var val,
|
|
triggerChange = false,
|
|
data = null,
|
|
self = this,
|
|
oldData = this.data();
|
|
|
|
if (arguments.length === 0) {
|
|
return this.opts.element.val();
|
|
}
|
|
|
|
val = arguments[0];
|
|
|
|
if (arguments.length > 1) {
|
|
triggerChange = arguments[1];
|
|
}
|
|
|
|
if (this.select) {
|
|
this.select
|
|
.val(val)
|
|
.find("option").filter(function() { return this.selected }).each2(function (i, elm) {
|
|
data = self.optionToData(elm);
|
|
return false;
|
|
});
|
|
this.updateSelection(data);
|
|
this.setPlaceholder();
|
|
if (triggerChange) {
|
|
this.triggerChange({added: data, removed:oldData});
|
|
}
|
|
} else {
|
|
// val is an id. !val is true for [undefined,null,'',0] - 0 is legal
|
|
if (!val && val !== 0) {
|
|
this.clear(triggerChange);
|
|
return;
|
|
}
|
|
if (this.opts.initSelection === undefined) {
|
|
throw new Error("cannot call val() if initSelection() is not defined");
|
|
}
|
|
this.opts.element.val(val);
|
|
this.opts.initSelection(this.opts.element, function(data){
|
|
self.opts.element.val(!data ? "" : self.id(data));
|
|
self.updateSelection(data);
|
|
self.setPlaceholder();
|
|
if (triggerChange) {
|
|
self.triggerChange({added: data, removed:oldData});
|
|
}
|
|
});
|
|
}
|
|
},
|
|
|
|
// single
|
|
clearSearch: function () {
|
|
this.search.val("");
|
|
this.focusser.val("");
|
|
},
|
|
|
|
// single
|
|
data: function(value) {
|
|
var data,
|
|
triggerChange = false;
|
|
|
|
if (arguments.length === 0) {
|
|
data = this.selection.data("select2-data");
|
|
if (data == undefined) data = null;
|
|
return data;
|
|
} else {
|
|
if (arguments.length > 1) {
|
|
triggerChange = arguments[1];
|
|
}
|
|
if (!value) {
|
|
this.clear(triggerChange);
|
|
} else {
|
|
data = this.data();
|
|
this.opts.element.val(!value ? "" : this.id(value));
|
|
this.updateSelection(value);
|
|
if (triggerChange) {
|
|
this.triggerChange({added: value, removed:data});
|
|
}
|
|
}
|
|
}
|
|
}
|
|
});
|
|
|
|
MultiSelect2 = clazz(AbstractSelect2, {
|
|
|
|
// multi
|
|
createContainer: function () {
|
|
var container = $(document.createElement("div")).attr({
|
|
"class": "select2-container select2-container-multi"
|
|
}).html([
|
|
"<ul class='select2-choices'>",
|
|
" <li class='select2-search-field'>",
|
|
" <label for='' class='select2-offscreen'></label>",
|
|
" <input type='text' autocomplete='off' autocorrect='off' autocapitalize='off' spellcheck='false' class='select2-input'>",
|
|
" </li>",
|
|
"</ul>",
|
|
"<div class='select2-drop select2-drop-multi select2-display-none'>",
|
|
" <ul class='select2-results'>",
|
|
" </ul>",
|
|
"</div>"].join(""));
|
|
return container;
|
|
},
|
|
|
|
// multi
|
|
prepareOpts: function () {
|
|
var opts = this.parent.prepareOpts.apply(this, arguments),
|
|
self=this;
|
|
|
|
// TODO validate placeholder is a string if specified
|
|
|
|
if (opts.element.get(0).tagName.toLowerCase() === "select") {
|
|
// install the selection initializer
|
|
opts.initSelection = function (element, callback) {
|
|
|
|
var data = [];
|
|
|
|
element.find("option").filter(function() { return this.selected && !this.disabled }).each2(function (i, elm) {
|
|
data.push(self.optionToData(elm));
|
|
});
|
|
callback(data);
|
|
};
|
|
} else if ("data" in opts) {
|
|
// install default initSelection when applied to hidden input and data is local
|
|
opts.initSelection = opts.initSelection || function (element, callback) {
|
|
var ids = splitVal(element.val(), opts.separator);
|
|
//search in data by array of ids, storing matching items in a list
|
|
var matches = [];
|
|
opts.query({
|
|
matcher: function(term, text, el){
|
|
var is_match = $.grep(ids, function(id) {
|
|
return equal(id, opts.id(el));
|
|
}).length;
|
|
if (is_match) {
|
|
matches.push(el);
|
|
}
|
|
return is_match;
|
|
},
|
|
callback: !$.isFunction(callback) ? $.noop : function() {
|
|
// reorder matches based on the order they appear in the ids array because right now
|
|
// they are in the order in which they appear in data array
|
|
var ordered = [];
|
|
for (var i = 0; i < ids.length; i++) {
|
|
var id = ids[i];
|
|
for (var j = 0; j < matches.length; j++) {
|
|
var match = matches[j];
|
|
if (equal(id, opts.id(match))) {
|
|
ordered.push(match);
|
|
matches.splice(j, 1);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
callback(ordered);
|
|
}
|
|
});
|
|
};
|
|
}
|
|
|
|
return opts;
|
|
},
|
|
|
|
// multi
|
|
selectChoice: function (choice) {
|
|
|
|
var selected = this.container.find(".select2-search-choice-focus");
|
|
if (selected.length && choice && choice[0] == selected[0]) {
|
|
|
|
} else {
|
|
if (selected.length) {
|
|
this.opts.element.trigger("choice-deselected", selected);
|
|
}
|
|
selected.removeClass("select2-search-choice-focus");
|
|
if (choice && choice.length) {
|
|
this.close();
|
|
choice.addClass("select2-search-choice-focus");
|
|
this.opts.element.trigger("choice-selected", choice);
|
|
}
|
|
}
|
|
},
|
|
|
|
// multi
|
|
destroy: function() {
|
|
$("label[for='" + this.search.attr('id') + "']")
|
|
.attr('for', this.opts.element.attr("id"));
|
|
this.parent.destroy.apply(this, arguments);
|
|
|
|
cleanupJQueryElements.call(this,
|
|
"searchContainer",
|
|
"selection"
|
|
);
|
|
},
|
|
|
|
// multi
|
|
initContainer: function () {
|
|
|
|
var selector = ".select2-choices", selection;
|
|
|
|
this.searchContainer = this.container.find(".select2-search-field");
|
|
this.selection = selection = this.container.find(selector);
|
|
|
|
var _this = this;
|
|
this.selection.on("click", ".select2-search-choice:not(.select2-locked)", function (e) {
|
|
//killEvent(e);
|
|
_this.search[0].focus();
|
|
_this.selectChoice($(this));
|
|
});
|
|
|
|
// rewrite labels from original element to focusser
|
|
this.search.attr("id", "s2id_autogen"+nextUid());
|
|
|
|
this.search.prev()
|
|
.text($("label[for='" + this.opts.element.attr("id") + "']").text())
|
|
.attr('for', this.search.attr('id'));
|
|
|
|
this.search.on("input paste", this.bind(function() {
|
|
if (this.search.attr('placeholder') && this.search.val().length == 0) return;
|
|
if (!this.isInterfaceEnabled()) return;
|
|
if (!this.opened()) {
|
|
this.open();
|
|
}
|
|
}));
|
|
|
|
this.search.attr("tabindex", this.elementTabIndex);
|
|
|
|
this.keydowns = 0;
|
|
this.search.on("keydown", this.bind(function (e) {
|
|
if (!this.isInterfaceEnabled()) return;
|
|
|
|
++this.keydowns;
|
|
var selected = selection.find(".select2-search-choice-focus");
|
|
var prev = selected.prev(".select2-search-choice:not(.select2-locked)");
|
|
var next = selected.next(".select2-search-choice:not(.select2-locked)");
|
|
var pos = getCursorInfo(this.search);
|
|
|
|
if (selected.length &&
|
|
(e.which == KEY.LEFT || e.which == KEY.RIGHT || e.which == KEY.BACKSPACE || e.which == KEY.DELETE || e.which == KEY.ENTER)) {
|
|
var selectedChoice = selected;
|
|
if (e.which == KEY.LEFT && prev.length) {
|
|
selectedChoice = prev;
|
|
}
|
|
else if (e.which == KEY.RIGHT) {
|
|
selectedChoice = next.length ? next : null;
|
|
}
|
|
else if (e.which === KEY.BACKSPACE) {
|
|
if (this.unselect(selected.first())) {
|
|
this.search.width(10);
|
|
selectedChoice = prev.length ? prev : next;
|
|
}
|
|
} else if (e.which == KEY.DELETE) {
|
|
if (this.unselect(selected.first())) {
|
|
this.search.width(10);
|
|
selectedChoice = next.length ? next : null;
|
|
}
|
|
} else if (e.which == KEY.ENTER) {
|
|
selectedChoice = null;
|
|
}
|
|
|
|
this.selectChoice(selectedChoice);
|
|
killEvent(e);
|
|
if (!selectedChoice || !selectedChoice.length) {
|
|
this.open();
|
|
}
|
|
return;
|
|
} else if (((e.which === KEY.BACKSPACE && this.keydowns == 1)
|
|
|| e.which == KEY.LEFT) && (pos.offset == 0 && !pos.length)) {
|
|
|
|
this.selectChoice(selection.find(".select2-search-choice:not(.select2-locked)").last());
|
|
killEvent(e);
|
|
return;
|
|
} else {
|
|
this.selectChoice(null);
|
|
}
|
|
|
|
if (this.opened()) {
|
|
switch (e.which) {
|
|
case KEY.UP:
|
|
case KEY.DOWN:
|
|
this.moveHighlight((e.which === KEY.UP) ? -1 : 1);
|
|
killEvent(e);
|
|
return;
|
|
case KEY.ENTER:
|
|
this.selectHighlighted();
|
|
killEvent(e);
|
|
return;
|
|
case KEY.TAB:
|
|
this.selectHighlighted({noFocus:true});
|
|
this.close();
|
|
return;
|
|
case KEY.ESC:
|
|
this.cancel(e);
|
|
killEvent(e);
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (e.which === KEY.TAB || KEY.isControl(e) || KEY.isFunctionKey(e)
|
|
|| e.which === KEY.BACKSPACE || e.which === KEY.ESC) {
|
|
return;
|
|
}
|
|
|
|
if (e.which === KEY.ENTER) {
|
|
if (this.opts.openOnEnter === false) {
|
|
return;
|
|
} else if (e.altKey || e.ctrlKey || e.shiftKey || e.metaKey) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
this.open();
|
|
|
|
if (e.which === KEY.PAGE_UP || e.which === KEY.PAGE_DOWN) {
|
|
// prevent the page from scrolling
|
|
killEvent(e);
|
|
}
|
|
|
|
if (e.which === KEY.ENTER) {
|
|
// prevent form from being submitted
|
|
killEvent(e);
|
|
}
|
|
|
|
}));
|
|
|
|
this.search.on("keyup", this.bind(function (e) {
|
|
this.keydowns = 0;
|
|
this.resizeSearch();
|
|
})
|
|
);
|
|
|
|
this.search.on("blur", this.bind(function(e) {
|
|
this.container.removeClass("select2-container-active");
|
|
this.search.removeClass("select2-focused");
|
|
this.selectChoice(null);
|
|
if (!this.opened()) this.clearSearch();
|
|
e.stopImmediatePropagation();
|
|
this.opts.element.trigger($.Event("select2-blur"));
|
|
}));
|
|
|
|
this.container.on("click", selector, this.bind(function (e) {
|
|
if (!this.isInterfaceEnabled()) return;
|
|
if ($(e.target).closest(".select2-search-choice").length > 0) {
|
|
// clicked inside a select2 search choice, do not open
|
|
return;
|
|
}
|
|
this.selectChoice(null);
|
|
this.clearPlaceholder();
|
|
if (!this.container.hasClass("select2-container-active")) {
|
|
this.opts.element.trigger($.Event("select2-focus"));
|
|
}
|
|
this.open();
|
|
this.focusSearch();
|
|
e.preventDefault();
|
|
}));
|
|
|
|
this.container.on("focus", selector, this.bind(function () {
|
|
if (!this.isInterfaceEnabled()) return;
|
|
if (!this.container.hasClass("select2-container-active")) {
|
|
this.opts.element.trigger($.Event("select2-focus"));
|
|
}
|
|
this.container.addClass("select2-container-active");
|
|
this.dropdown.addClass("select2-drop-active");
|
|
this.clearPlaceholder();
|
|
}));
|
|
|
|
this.initContainerWidth();
|
|
this.opts.element.addClass("select2-offscreen");
|
|
|
|
// set the placeholder if necessary
|
|
this.clearSearch();
|
|
},
|
|
|
|
// multi
|
|
enableInterface: function() {
|
|
if (this.parent.enableInterface.apply(this, arguments)) {
|
|
this.search.prop("disabled", !this.isInterfaceEnabled());
|
|
}
|
|
},
|
|
|
|
// multi
|
|
initSelection: function () {
|
|
var data;
|
|
if (this.opts.element.val() === "" && this.opts.element.text() === "") {
|
|
this.updateSelection([]);
|
|
this.close();
|
|
// set the placeholder if necessary
|
|
this.clearSearch();
|
|
}
|
|
if (this.select || this.opts.element.val() !== "") {
|
|
var self = this;
|
|
this.opts.initSelection.call(null, this.opts.element, function(data){
|
|
if (data !== undefined && data !== null) {
|
|
self.updateSelection(data);
|
|
self.close();
|
|
// set the placeholder if necessary
|
|
self.clearSearch();
|
|
}
|
|
});
|
|
}
|
|
},
|
|
|
|
// multi
|
|
clearSearch: function () {
|
|
var placeholder = this.getPlaceholder(),
|
|
maxWidth = this.getMaxSearchWidth();
|
|
|
|
if (placeholder !== undefined && this.getVal().length === 0 && this.search.hasClass("select2-focused") === false) {
|
|
this.search.val(placeholder).addClass("select2-default");
|
|
// stretch the search box to full width of the container so as much of the placeholder is visible as possible
|
|
// we could call this.resizeSearch(), but we do not because that requires a sizer and we do not want to create one so early because of a firefox bug, see #944
|
|
this.search.width(maxWidth > 0 ? maxWidth : this.container.css("width"));
|
|
} else {
|
|
this.search.val("").width(10);
|
|
}
|
|
},
|
|
|
|
// multi
|
|
clearPlaceholder: function () {
|
|
if (this.search.hasClass("select2-default")) {
|
|
this.search.val("").removeClass("select2-default");
|
|
}
|
|
},
|
|
|
|
// multi
|
|
opening: function () {
|
|
this.clearPlaceholder(); // should be done before super so placeholder is not used to search
|
|
this.resizeSearch();
|
|
|
|
this.parent.opening.apply(this, arguments);
|
|
|
|
this.focusSearch();
|
|
|
|
// initializes search's value with nextSearchTerm (if defined by user)
|
|
// ignore nextSearchTerm if the dropdown is opened by the user pressing a letter
|
|
if(this.search.val() === "") {
|
|
if(this.nextSearchTerm != undefined){
|
|
this.search.val(this.nextSearchTerm);
|
|
this.search.select();
|
|
}
|
|
}
|
|
|
|
this.updateResults(true);
|
|
if (this.opts.shouldFocusInput(this)) {
|
|
this.search.focus();
|
|
}
|
|
this.opts.element.trigger($.Event("select2-open"));
|
|
},
|
|
|
|
// multi
|
|
close: function () {
|
|
if (!this.opened()) return;
|
|
this.parent.close.apply(this, arguments);
|
|
},
|
|
|
|
// multi
|
|
focus: function () {
|
|
this.close();
|
|
this.search.focus();
|
|
},
|
|
|
|
// multi
|
|
isFocused: function () {
|
|
return this.search.hasClass("select2-focused");
|
|
},
|
|
|
|
// multi
|
|
updateSelection: function (data) {
|
|
var ids = [], filtered = [], self = this;
|
|
|
|
// filter out duplicates
|
|
$(data).each(function () {
|
|
if (indexOf(self.id(this), ids) < 0) {
|
|
ids.push(self.id(this));
|
|
filtered.push(this);
|
|
}
|
|
});
|
|
data = filtered;
|
|
|
|
this.selection.find(".select2-search-choice").remove();
|
|
$(data).each(function () {
|
|
self.addSelectedChoice(this);
|
|
});
|
|
self.postprocessResults();
|
|
},
|
|
|
|
// multi
|
|
tokenize: function() {
|
|
var input = this.search.val();
|
|
input = this.opts.tokenizer.call(this, input, this.data(), this.bind(this.onSelect), this.opts);
|
|
if (input != null && input != undefined) {
|
|
this.search.val(input);
|
|
if (input.length > 0) {
|
|
this.open();
|
|
}
|
|
}
|
|
|
|
},
|
|
|
|
// multi
|
|
onSelect: function (data, options) {
|
|
|
|
if (!this.triggerSelect(data)) { return; }
|
|
|
|
this.addSelectedChoice(data);
|
|
|
|
this.opts.element.trigger({ type: "selected", val: this.id(data), choice: data });
|
|
|
|
// keep track of the search's value before it gets cleared
|
|
this.nextSearchTerm = this.opts.nextSearchTerm(data, this.search.val());
|
|
|
|
this.clearSearch();
|
|
this.updateResults();
|
|
|
|
if (this.select || !this.opts.closeOnSelect) this.postprocessResults(data, false, this.opts.closeOnSelect===true);
|
|
|
|
if (this.opts.closeOnSelect) {
|
|
this.close();
|
|
this.search.width(10);
|
|
} else {
|
|
if (this.countSelectableResults()>0) {
|
|
this.search.width(10);
|
|
this.resizeSearch();
|
|
if (this.getMaximumSelectionSize() > 0 && this.val().length >= this.getMaximumSelectionSize()) {
|
|
// if we reached max selection size repaint the results so choices
|
|
// are replaced with the max selection reached message
|
|
this.updateResults(true);
|
|
} else {
|
|
// initializes search's value with nextSearchTerm and update search result
|
|
if(this.nextSearchTerm != undefined){
|
|
this.search.val(this.nextSearchTerm);
|
|
this.updateResults();
|
|
this.search.select();
|
|
}
|
|
}
|
|
this.positionDropdown();
|
|
} else {
|
|
// if nothing left to select close
|
|
this.close();
|
|
this.search.width(10);
|
|
}
|
|
}
|
|
|
|
// since its not possible to select an element that has already been
|
|
// added we do not need to check if this is a new element before firing change
|
|
this.triggerChange({ added: data });
|
|
|
|
if (!options || !options.noFocus)
|
|
this.focusSearch();
|
|
},
|
|
|
|
// multi
|
|
cancel: function () {
|
|
this.close();
|
|
this.focusSearch();
|
|
},
|
|
|
|
addSelectedChoice: function (data) {
|
|
var enableChoice = !data.locked,
|
|
enabledItem = $(
|
|
"<li class='select2-search-choice'>" +
|
|
" <div></div>" +
|
|
" <a href='#' class='select2-search-choice-close' tabindex='-1'></a>" +
|
|
"</li>"),
|
|
disabledItem = $(
|
|
"<li class='select2-search-choice select2-locked'>" +
|
|
"<div></div>" +
|
|
"</li>");
|
|
var choice = enableChoice ? enabledItem : disabledItem,
|
|
id = this.id(data),
|
|
val = this.getVal(),
|
|
formatted,
|
|
cssClass;
|
|
|
|
formatted=this.opts.formatSelection(data, choice.find("div"), this.opts.escapeMarkup);
|
|
if (formatted != undefined) {
|
|
choice.find("div").replaceWith("<div>"+formatted+"</div>");
|
|
}
|
|
cssClass=this.opts.formatSelectionCssClass(data, choice.find("div"));
|
|
if (cssClass != undefined) {
|
|
choice.addClass(cssClass);
|
|
}
|
|
|
|
if(enableChoice){
|
|
choice.find(".select2-search-choice-close")
|
|
.on("mousedown", killEvent)
|
|
.on("click dblclick", this.bind(function (e) {
|
|
if (!this.isInterfaceEnabled()) return;
|
|
|
|
this.unselect($(e.target));
|
|
this.selection.find(".select2-search-choice-focus").removeClass("select2-search-choice-focus");
|
|
killEvent(e);
|
|
this.close();
|
|
this.focusSearch();
|
|
})).on("focus", this.bind(function () {
|
|
if (!this.isInterfaceEnabled()) return;
|
|
this.container.addClass("select2-container-active");
|
|
this.dropdown.addClass("select2-drop-active");
|
|
}));
|
|
}
|
|
|
|
choice.data("select2-data", data);
|
|
choice.insertBefore(this.searchContainer);
|
|
|
|
val.push(id);
|
|
this.setVal(val);
|
|
},
|
|
|
|
// multi
|
|
unselect: function (selected) {
|
|
var val = this.getVal(),
|
|
data,
|
|
index;
|
|
selected = selected.closest(".select2-search-choice");
|
|
|
|
if (selected.length === 0) {
|
|
throw "Invalid argument: " + selected + ". Must be .select2-search-choice";
|
|
}
|
|
|
|
data = selected.data("select2-data");
|
|
|
|
if (!data) {
|
|
// prevent a race condition when the 'x' is clicked really fast repeatedly the event can be queued
|
|
// and invoked on an element already removed
|
|
return;
|
|
}
|
|
|
|
var evt = $.Event("select2-removing");
|
|
evt.val = this.id(data);
|
|
evt.choice = data;
|
|
this.opts.element.trigger(evt);
|
|
|
|
if (evt.isDefaultPrevented()) {
|
|
return false;
|
|
}
|
|
|
|
while((index = indexOf(this.id(data), val)) >= 0) {
|
|
val.splice(index, 1);
|
|
this.setVal(val);
|
|
if (this.select) this.postprocessResults();
|
|
}
|
|
|
|
selected.remove();
|
|
|
|
this.opts.element.trigger({ type: "select2-removed", val: this.id(data), choice: data });
|
|
this.triggerChange({ removed: data });
|
|
|
|
return true;
|
|
},
|
|
|
|
// multi
|
|
postprocessResults: function (data, initial, noHighlightUpdate) {
|
|
var val = this.getVal(),
|
|
choices = this.results.find(".select2-result"),
|
|
compound = this.results.find(".select2-result-with-children"),
|
|
self = this;
|
|
|
|
choices.each2(function (i, choice) {
|
|
var id = self.id(choice.data("select2-data"));
|
|
if (indexOf(id, val) >= 0) {
|
|
choice.addClass("select2-selected");
|
|
// mark all children of the selected parent as selected
|
|
choice.find(".select2-result-selectable").addClass("select2-selected");
|
|
}
|
|
});
|
|
|
|
compound.each2(function(i, choice) {
|
|
// hide an optgroup if it doesn't have any selectable children
|
|
if (!choice.is('.select2-result-selectable')
|
|
&& choice.find(".select2-result-selectable:not(.select2-selected)").length === 0) {
|
|
choice.addClass("select2-selected");
|
|
}
|
|
});
|
|
|
|
if (this.highlight() == -1 && noHighlightUpdate !== false){
|
|
self.highlight(0);
|
|
}
|
|
|
|
//If all results are chosen render formatNoMatches
|
|
if(!this.opts.createSearchChoice && !choices.filter('.select2-result:not(.select2-selected)').length > 0){
|
|
if(!data || data && !data.more && this.results.find(".select2-no-results").length === 0) {
|
|
if (checkFormatter(self.opts.formatNoMatches, "formatNoMatches")) {
|
|
this.results.append("<li class='select2-no-results'>" + evaluate(self.opts.formatNoMatches, self.opts.element, self.search.val()) + "</li>");
|
|
}
|
|
}
|
|
}
|
|
|
|
},
|
|
|
|
// multi
|
|
getMaxSearchWidth: function() {
|
|
return this.selection.width() - getSideBorderPadding(this.search);
|
|
},
|
|
|
|
// multi
|
|
resizeSearch: function () {
|
|
var minimumWidth, left, maxWidth, containerLeft, searchWidth,
|
|
sideBorderPadding = getSideBorderPadding(this.search);
|
|
|
|
minimumWidth = measureTextWidth(this.search) + 10;
|
|
|
|
left = this.search.offset().left;
|
|
|
|
maxWidth = this.selection.width();
|
|
containerLeft = this.selection.offset().left;
|
|
|
|
searchWidth = maxWidth - (left - containerLeft) - sideBorderPadding;
|
|
|
|
if (searchWidth < minimumWidth) {
|
|
searchWidth = maxWidth - sideBorderPadding;
|
|
}
|
|
|
|
if (searchWidth < 40) {
|
|
searchWidth = maxWidth - sideBorderPadding;
|
|
}
|
|
|
|
if (searchWidth <= 0) {
|
|
searchWidth = minimumWidth;
|
|
}
|
|
|
|
this.search.width(Math.floor(searchWidth));
|
|
},
|
|
|
|
// multi
|
|
getVal: function () {
|
|
var val;
|
|
if (this.select) {
|
|
val = this.select.val();
|
|
return val === null ? [] : val;
|
|
} else {
|
|
val = this.opts.element.val();
|
|
return splitVal(val, this.opts.separator);
|
|
}
|
|
},
|
|
|
|
// multi
|
|
setVal: function (val) {
|
|
var unique;
|
|
if (this.select) {
|
|
this.select.val(val);
|
|
} else {
|
|
unique = [];
|
|
// filter out duplicates
|
|
$(val).each(function () {
|
|
if (indexOf(this, unique) < 0) unique.push(this);
|
|
});
|
|
this.opts.element.val(unique.length === 0 ? "" : unique.join(this.opts.separator));
|
|
}
|
|
},
|
|
|
|
// multi
|
|
buildChangeDetails: function (old, current) {
|
|
var current = current.slice(0),
|
|
old = old.slice(0);
|
|
|
|
// remove intersection from each array
|
|
for (var i = 0; i < current.length; i++) {
|
|
for (var j = 0; j < old.length; j++) {
|
|
if (equal(this.opts.id(current[i]), this.opts.id(old[j]))) {
|
|
current.splice(i, 1);
|
|
if(i>0){
|
|
i--;
|
|
}
|
|
old.splice(j, 1);
|
|
j--;
|
|
}
|
|
}
|
|
}
|
|
|
|
return {added: current, removed: old};
|
|
},
|
|
|
|
|
|
// multi
|
|
val: function (val, triggerChange) {
|
|
var oldData, self=this;
|
|
|
|
if (arguments.length === 0) {
|
|
return this.getVal();
|
|
}
|
|
|
|
oldData=this.data();
|
|
if (!oldData.length) oldData=[];
|
|
|
|
// val is an id. !val is true for [undefined,null,'',0] - 0 is legal
|
|
if (!val && val !== 0) {
|
|
this.opts.element.val("");
|
|
this.updateSelection([]);
|
|
this.clearSearch();
|
|
if (triggerChange) {
|
|
this.triggerChange({added: this.data(), removed: oldData});
|
|
}
|
|
return;
|
|
}
|
|
|
|
// val is a list of ids
|
|
this.setVal(val);
|
|
|
|
if (this.select) {
|
|
this.opts.initSelection(this.select, this.bind(this.updateSelection));
|
|
if (triggerChange) {
|
|
this.triggerChange(this.buildChangeDetails(oldData, this.data()));
|
|
}
|
|
} else {
|
|
if (this.opts.initSelection === undefined) {
|
|
throw new Error("val() cannot be called if initSelection() is not defined");
|
|
}
|
|
|
|
this.opts.initSelection(this.opts.element, function(data){
|
|
var ids=$.map(data, self.id);
|
|
self.setVal(ids);
|
|
self.updateSelection(data);
|
|
self.clearSearch();
|
|
if (triggerChange) {
|
|
self.triggerChange(self.buildChangeDetails(oldData, self.data()));
|
|
}
|
|
});
|
|
}
|
|
this.clearSearch();
|
|
},
|
|
|
|
// multi
|
|
onSortStart: function() {
|
|
if (this.select) {
|
|
throw new Error("Sorting of elements is not supported when attached to <select>. Attach to <input type='hidden'/> instead.");
|
|
}
|
|
|
|
// collapse search field into 0 width so its container can be collapsed as well
|
|
this.search.width(0);
|
|
// hide the container
|
|
this.searchContainer.hide();
|
|
},
|
|
|
|
// multi
|
|
onSortEnd:function() {
|
|
|
|
var val=[], self=this;
|
|
|
|
// show search and move it to the end of the list
|
|
this.searchContainer.show();
|
|
// make sure the search container is the last item in the list
|
|
this.searchContainer.appendTo(this.searchContainer.parent());
|
|
// since we collapsed the width in dragStarted, we resize it here
|
|
this.resizeSearch();
|
|
|
|
// update selection
|
|
this.selection.find(".select2-search-choice").each(function() {
|
|
val.push(self.opts.id($(this).data("select2-data")));
|
|
});
|
|
this.setVal(val);
|
|
this.triggerChange();
|
|
},
|
|
|
|
// multi
|
|
data: function(values, triggerChange) {
|
|
var self=this, ids, old;
|
|
if (arguments.length === 0) {
|
|
return this.selection
|
|
.children(".select2-search-choice")
|
|
.map(function() { return $(this).data("select2-data"); })
|
|
.get();
|
|
} else {
|
|
old = this.data();
|
|
if (!values) { values = []; }
|
|
ids = $.map(values, function(e) { return self.opts.id(e); });
|
|
this.setVal(ids);
|
|
this.updateSelection(values);
|
|
this.clearSearch();
|
|
if (triggerChange) {
|
|
this.triggerChange(this.buildChangeDetails(old, this.data()));
|
|
}
|
|
}
|
|
}
|
|
});
|
|
|
|
$.fn.select2 = function () {
|
|
|
|
var args = Array.prototype.slice.call(arguments, 0),
|
|
opts,
|
|
select2,
|
|
method, value, multiple,
|
|
allowedMethods = ["val", "destroy", "opened", "open", "close", "focus", "isFocused", "container", "dropdown", "onSortStart", "onSortEnd", "enable", "disable", "readonly", "positionDropdown", "data", "search"],
|
|
valueMethods = ["opened", "isFocused", "container", "dropdown"],
|
|
propertyMethods = ["val", "data"],
|
|
methodsMap = { search: "externalSearch" };
|
|
|
|
this.each(function () {
|
|
if (args.length === 0 || typeof(args[0]) === "object") {
|
|
opts = args.length === 0 ? {} : $.extend({}, args[0]);
|
|
opts.element = $(this);
|
|
|
|
if (opts.element.get(0).tagName.toLowerCase() === "select") {
|
|
multiple = opts.element.prop("multiple");
|
|
} else {
|
|
multiple = opts.multiple || false;
|
|
if ("tags" in opts) {opts.multiple = multiple = true;}
|
|
}
|
|
|
|
select2 = multiple ? new window.Select2["class"].multi() : new window.Select2["class"].single();
|
|
select2.init(opts);
|
|
} else if (typeof(args[0]) === "string") {
|
|
|
|
if (indexOf(args[0], allowedMethods) < 0) {
|
|
throw "Unknown method: " + args[0];
|
|
}
|
|
|
|
value = undefined;
|
|
select2 = $(this).data("select2");
|
|
if (select2 === undefined) return;
|
|
|
|
method=args[0];
|
|
|
|
if (method === "container") {
|
|
value = select2.container;
|
|
} else if (method === "dropdown") {
|
|
value = select2.dropdown;
|
|
} else {
|
|
if (methodsMap[method]) method = methodsMap[method];
|
|
|
|
value = select2[method].apply(select2, args.slice(1));
|
|
}
|
|
if (indexOf(args[0], valueMethods) >= 0
|
|
|| (indexOf(args[0], propertyMethods) >= 0 && args.length == 1)) {
|
|
return false; // abort the iteration, ready to return first matched value
|
|
}
|
|
} else {
|
|
throw "Invalid arguments to select2 plugin: " + args;
|
|
}
|
|
});
|
|
return (value === undefined) ? this : value;
|
|
};
|
|
|
|
// plugin defaults, accessible to users
|
|
$.fn.select2.defaults = {
|
|
width: "copy",
|
|
loadMorePadding: 0,
|
|
closeOnSelect: true,
|
|
openOnEnter: true,
|
|
containerCss: {},
|
|
dropdownCss: {},
|
|
containerCssClass: "",
|
|
dropdownCssClass: "",
|
|
formatResult: function(result, container, query, escapeMarkup) {
|
|
var markup=[];
|
|
markMatch(result.text, query.term, markup, escapeMarkup);
|
|
return markup.join("");
|
|
},
|
|
formatSelection: function (data, container, escapeMarkup) {
|
|
return data ? escapeMarkup(data.text) : undefined;
|
|
},
|
|
sortResults: function (results, container, query) {
|
|
return results;
|
|
},
|
|
formatResultCssClass: function(data) {return data.css;},
|
|
formatSelectionCssClass: function(data, container) {return undefined;},
|
|
formatMatches: function (matches) { return matches + " results are available, use up and down arrow keys to navigate."; },
|
|
formatNoMatches: function () { return "No matches found"; },
|
|
formatInputTooShort: function (input, min) { var n = min - input.length; return "Please enter " + n + " or more character" + (n == 1? "" : "s"); },
|
|
formatInputTooLong: function (input, max) { var n = input.length - max; return "Please delete " + n + " character" + (n == 1? "" : "s"); },
|
|
formatSelectionTooBig: function (limit) { return "You can only select " + limit + " item" + (limit == 1 ? "" : "s"); },
|
|
formatLoadMore: function (pageNumber) { return "Loading more results…"; },
|
|
formatSearching: function () { return "Searching…"; },
|
|
minimumResultsForSearch: 0,
|
|
minimumInputLength: 0,
|
|
maximumInputLength: null,
|
|
maximumSelectionSize: 0,
|
|
id: function (e) { return e == undefined ? null : e.id; },
|
|
matcher: function(term, text) {
|
|
return stripDiacritics(''+text).toUpperCase().indexOf(stripDiacritics(''+term).toUpperCase()) >= 0;
|
|
},
|
|
separator: ",",
|
|
tokenSeparators: [],
|
|
tokenizer: defaultTokenizer,
|
|
escapeMarkup: defaultEscapeMarkup,
|
|
blurOnChange: false,
|
|
selectOnBlur: false,
|
|
adaptContainerCssClass: function(c) { return c; },
|
|
adaptDropdownCssClass: function(c) { return null; },
|
|
nextSearchTerm: function(selectedObject, currentSearchTerm) { return undefined; },
|
|
searchInputPlaceholder: '',
|
|
createSearchChoicePosition: 'top',
|
|
shouldFocusInput: function (instance) {
|
|
// Attempt to detect touch devices
|
|
var supportsTouchEvents = (('ontouchstart' in window) ||
|
|
(navigator.msMaxTouchPoints > 0));
|
|
|
|
// Only devices which support touch events should be special cased
|
|
if (!supportsTouchEvents) {
|
|
return true;
|
|
}
|
|
|
|
// Never focus the input if search is disabled
|
|
if (instance.opts.minimumResultsForSearch < 0) {
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
};
|
|
|
|
$.fn.select2.ajaxDefaults = {
|
|
transport: $.ajax,
|
|
params: {
|
|
type: "GET",
|
|
cache: false,
|
|
dataType: "json"
|
|
}
|
|
};
|
|
|
|
// exports
|
|
window.Select2 = {
|
|
query: {
|
|
ajax: ajax,
|
|
local: local,
|
|
tags: tags
|
|
}, util: {
|
|
debounce: debounce,
|
|
markMatch: markMatch,
|
|
escapeMarkup: defaultEscapeMarkup,
|
|
stripDiacritics: stripDiacritics
|
|
}, "class": {
|
|
"abstract": AbstractSelect2,
|
|
"single": SingleSelect2,
|
|
"multi": MultiSelect2
|
|
}
|
|
};
|
|
|
|
}(jQuery));
|