angular-cn/public/resources/js/util.js

88 lines
3.2 KiB
JavaScript

// This will be nicer once we switch to Ng2. For now, define a singleton.
var NgIoUtil = (function () {
function NgIoUtil() { }
NgIoUtil.isDoc = function ($location, lang) {
var loc = $location.absUrl();
return loc.indexOf('/docs/' + lang + '/') >= 0;
};
// The following util functions are adapted from _utils-fn.jade.
// Note that basename(), etc doesn't quite follow
// https://nodejs.org/api/path.html
// but it suits our purpose for now.
NgIoUtil.adjustTsExamplePathForDart = function (_path) {
/* Convert a TS example path into a Dart example path. E.g.,
*
* - app/main.ts -> web/main.dart
* - displaying-data/ts/app/app.component.2.ts -> displaying-data/dart/lib/app_component.dart
*
* Notice that the '.2' is dropped from the name.
*/
if (!_path) return _path;
var path = _path.trim();
var folder = NgIoUtil.folderName(path);
var ext = NgIoUtil.extname(path);
var baseNameNoExt = NgIoUtil.basename(path, ext);
var inWebFolder = baseNameNoExt.match(/^(main|index)(\.\d)?$/);
// Adjust the folder path, e.g., '/ts/' -> '/dart/'
folder = folder
.replace(/(^|\/)ts($|\/)/, '$1dart$2')
.replace(/(^|\/)app($|\/)/, inWebFolder ? '$1web$2' : '$1lib$2');
// Special case not handled above: e.g., index.html -> web/index.html
if (baseNameNoExt.match(/^(index|styles)(\.\d)?$/) && !folder.match(/web$/))
folder = (folder ? folder + '/' : '') + 'web';
// In file name, replace special characters with underscore
baseNameNoExt = baseNameNoExt.replace(/[\-\.]/g, '_');
// Adjust the file extension
if (ext == '.ts') ext = '.dart';
return (folder ? folder + '/' : '') + baseNameNoExt + ext;
};
NgIoUtil.extname = function (path) {
var i = path.lastIndexOf('.');
return i > 0 ? path.substr(i) : '';
};
NgIoUtil.basename = function (path, optExt) {
var i = path.lastIndexOf('/');
var name = i > 0 ? path.substr(i + 1) : path;
if (optExt) name = name.substr(0, name.length - optExt.length);
return name;
};
NgIoUtil.folderName = function (path) {
var i = path.lastIndexOf('/');
return i > 0 ? path.substr(0, i) : '';
};
NgIoUtil._exampleName = ''; // example name is unique to a page; e.g., toh-1
NgIoUtil.setExampleName = function (name) {
// Adjust name for known cases where chapter name is not the example name.
var matches = name.match(/(toh-)pt(\d+)/);
if (matches) name = matches[1] + matches[2];
NgIoUtil._exampleName = name;
}
NgIoUtil.getExampleName = function ($location) {
if (!NgIoUtil._exampleName) {
// TODO: use $location.path() instead(?). It seems to be empty.
var loc = $location.absUrl();
// E.g., https://example.com/docs/dart/latest/guide/displaying-data.html
var matches = loc.match(/.*\/([\w\-]+)(\.html)?/);
if (matches) NgIoUtil.setExampleName(matches[1]); // cache name
}
return NgIoUtil._exampleName;
};
return NgIoUtil;
} ());