/** * EGroupware clientside API object * * @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License * @package etemplate * @subpackage api * @link http://www.egroupware.org * @author Andreas Stöckel (as AT stylite.de) * @author Ralf Becker <RalfBecker@outdoor-training.de> * @version $Id$ */ "use strict"; /*egw:uses egw_core; egw_ready; egw_debug; */ /** * @augments Class */ egw.extend('files', egw.MODULE_WND_LOCAL, function(_app, _wnd) { var egw = this; /** * Remove optional timestamp attached directly as first query parameter, eg. /path/name.js?12345678[&other=val] * * Examples: * /path/file.js --> /path/file.js * /path/file.js?123456 --> /path/file.js * /path/file.php?123456¶m=value --> /path/file.php?param=value * * @param _src url * @return url with timestamp stripped off */ function removeTS(_src) { return _src.replace(/\?[0-9]+&?/, '?').replace(/\?$/, ''); } /** * RegExp to extract string with comma-separated files from a bundle-url * * @type RegExp */ var bundle2files_regexp = /phpgwapi\/inc\/min\/\?b=[^&]+&f=([^&]+)/; /** * Return array of files-sources from bundle(s) incl. bundle-src itself * * @param {string|Array} _srcs all url's have to be egw releativ! * @returns {Array} */ function files_from_bundles(_srcs) { var files = []; if (typeof _srcs == 'string') _srcs = [_srcs]; for(var n=0; n < _srcs.length; ++n) { var file = _srcs[n]; files.push(file); var contains = file.match(bundle2files_regexp); if (contains && contains.length > 1) { files = files.concat(contains[1].split(',')); } } return files; } /** * Strip of egw_url from given urls (if containing it) * * @param {array} _urls absolute urls * @returns {array} relativ urls */ function strip_egw_url(_urls) { var egw_url = egw.webserverUrl; if (egw_url.charAt(egw_url.length-1) != '/') egw_url += '/'; for(var i=0; i < _urls.length; ++i) { var file = _urls[i]; // check if egw_url is only path and urls contains full url incl. protocol // --> prefix it with our protocol and host, as eg. splitting by just '/' will fail! var need_full_url = egw_url[0] == '/' && file.substr(4) == 'http' ? window.location.protocol+'://'+window.location.host : ''; var parts = file.split(need_full_url+egw_url,2); if (parts.length == 2) _urls[i] = parts[1]; } return _urls; } /** * Array which contains all currently bound in javascript and css files. */ var files = []; // add already included scripts var tags = jQuery('script', _wnd.document); for(var i=0; i < tags.length; ++i) { files.push(removeTS(tags[i].src)); } // add already included css tags = jQuery('link[type="text/css"]', _wnd.document); for(var i=0; i < tags.length; ++i) { files.push(removeTS(tags[i].href)); } // make urls egw-relative files = strip_egw_url(files); // resolve bundles files = files_from_bundles(files); return { /** * Load and execute javascript file(s) in order * * @memberOf egw * @param string|array _jsFiles (array of) urls to include * @param function _callback called after JS files are loaded and executed * @param object _context * @param string _prefix prefix for _jsFiles */ includeJS: function(_jsFiles, _callback, _context, _prefix) { // Also allow including a single javascript file if (typeof _jsFiles === 'string') { _jsFiles = [_jsFiles]; } // LABjs uses prefix only if url is not absolute, so removing leading / if necessary and add it to prefix if (_prefix) { for(var i=0; i < _jsFiles.length; ++i) { if (_jsFiles[i].charAt(0) == '/') _jsFiles[i] = _jsFiles[i].substr(1); } } // as all our included checks use egw relative url strip off egw-url and use it as prefix else { _jsFiles = strip_egw_url(_jsFiles); _prefix = egw.webserverUrl; } if (_prefix.charAt(_prefix.length-1) != '/') { _prefix += '/'; } // search and NOT load files already included as part of a bundle for(var i=0; i < _jsFiles.length; ++i) { var file = _jsFiles[i]; if (this.included(file, true)) // check if included and marks as such if not { _jsFiles.splice(i, 1); i--; // as index will be incr by for! } } // check if all files already included or sheduled to be included --> call callback via egw_LAB.wait if (!_jsFiles.length) { egw_LAB.wait(function(){ _callback.call(_context); }); return; } // setting AlwaysPreserverOrder: true, 'til we have some other means of ensuring dependency resolution (egw_LAB || $LAB.setOptions({AlwaysPreserveOrder:true,BasePath:_prefix})).script(_jsFiles).wait(function(){ _callback.call(_context); }); }, /** * Check if file is already included and optional mark it as included if not yet included * * @param {string} _file * @param {boolean} _add_if_not if true mark file as included * @return boolean true if file already included, false if not */ included: function(_file, _add_if_not) { var file = removeTS(_file); var not_inc = files.indexOf(file) == -1; if (not_inc && _add_if_not) { files = files.concat(files_from_bundles(file)); } return !not_inc; }, /** * Include a CSS file * * @param {string|array} _cssFiles full url of file to include */ includeCSS: function(_cssFiles) { if (typeof _cssFiles == 'string') _cssFiles = [_cssFiles]; _cssFiles = strip_egw_url(_cssFiles); for(var n=0; n < _cssFiles.length; ++n) { var file = _cssFiles[n]; if (!this.included(file, true)) // check if included and marks as such if not { // Create the node which is used to include the css file var cssnode = _wnd.document.createElement('link'); cssnode.type = "text/css"; cssnode.rel = "stylesheet"; cssnode.href = egw.webserverUrl+'/'+file; // Get the head node and append the newly created "link" nod to it var head = _wnd.document.getElementsByTagName('head')[0]; head.appendChild(cssnode); } } } }; });