Current Path : C:/xampp/htdocs/moodle/lib/yuilib/3.17.2/loader-rollup/ |
Current File : C:/xampp/htdocs/moodle/lib/yuilib/3.17.2/loader-rollup/loader-rollup.js |
/* YUI 3.17.2 (build 9c3c78e) Copyright 2014 Yahoo! Inc. All rights reserved. Licensed under the BSD License. http://yuilibrary.com/license/ */ YUI.add('loader-rollup', function (Y, NAME) { /** * Optional automatic rollup logic for reducing http connections * when not using a combo service. * @module loader * @submodule rollup */ /** * Look for rollup packages to determine if all of the modules a * rollup supersedes are required. If so, include the rollup to * help reduce the total number of connections required. Called * by calculate(). This is an optional feature, and requires the * appropriate submodule to function. * @method _rollup * @for Loader * @private */ Y.Loader.prototype._rollup = function() { var i, j, m, s, r = this.required, roll, info = this.moduleInfo, rolled, c, smod; // find and cache rollup modules if (this.dirty || !this.rollups) { this.rollups = {}; for (i in info) { if (info.hasOwnProperty(i)) { m = this.getModule(i); // if (m && m.rollup && m.supersedes) { if (m && m.rollup) { this.rollups[i] = m; } } } } // make as many passes as needed to pick up rollup rollups for (;;) { rolled = false; // go through the rollup candidates for (i in this.rollups) { if (this.rollups.hasOwnProperty(i)) { // there can be only one, unless forced if (!r[i] && ((!this.loaded[i]) || this.forceMap[i])) { m = this.getModule(i); s = m.supersedes || []; roll = false; // @TODO remove continue if (!m.rollup) { continue; } c = 0; // check the threshold for (j = 0; j < s.length; j++) { smod = info[s[j]]; // if the superseded module is loaded, we can't // load the rollup unless it has been forced. if (this.loaded[s[j]] && !this.forceMap[s[j]]) { roll = false; break; // increment the counter if this module is required. // if we are beyond the rollup threshold, we will // use the rollup module } else if (r[s[j]] && m.type === smod.type) { c++; roll = (c >= m.rollup); if (roll) { break; } } } if (roll) { // add the rollup r[i] = true; rolled = true; // expand the rollup's dependencies this.getRequires(m); } } } } // if we made it here w/o rolling up something, we are done if (!rolled) { break; } } }; }, '3.17.2', {"requires": ["loader-base"]});