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javascript-dock MDL-21329 Several major changes to the underlying nav…
…igation and dock code The following changes have been made in this commit: 1. Renamed the side bar thing to dock, this is consistent through all code/css now. 2. Converted everything to YUI 3 except the panel which docked items are shown in, this iwll be converted once YUI 3 overlay is no longer beta. 3 Redisigned the dock, all blocks can now make use of it, and theme code within JS can override it so they can make it look as they want. More changes are coming
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Sam Hemelryk
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Jan 14, 2010
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,298 @@ | ||
| // This file is part of Moodle - http://moodle.org/ | ||
| // | ||
| // Moodle is free software: you can redistribute it and/or modify | ||
| // it under the terms of the GNU General Public License as published by | ||
| // the Free Software Foundation, either version 3 of the License, or | ||
| // (at your option) any later version. | ||
| // | ||
| // Moodle is distributed in the hope that it will be useful, | ||
| // but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| // GNU General Public License for more details. | ||
| // | ||
| // You should have received a copy of the GNU General Public License | ||
| // along with Moodle. If not, see <http://www.gnu.org/licenses/>. | ||
|
|
||
| /** | ||
| * This file contains classes used to manage the navigation structures in Moodle | ||
| * and was introduced as part of the changes occuring in Moodle 2.0 | ||
| * | ||
| * @since 2.0 | ||
| * @package javascript | ||
| * @copyright 2009 Sam Hemelryk | ||
| * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later | ||
| */ | ||
|
|
||
| /** | ||
| * @namespace | ||
| */ | ||
| var blocks = blocks || {}; | ||
|
|
||
| /** | ||
| * This namespace will contain all of the contents of the navigation blocks | ||
| * global navigation and settings. | ||
| * @namespace | ||
| */ | ||
| blocks.navigation = { | ||
| /** The number of expandable branches in existence */ | ||
| expandablebranchcount:0, | ||
| /** An array of initialised trees */ | ||
| treecollection:[], | ||
| /** | ||
| * @namespace | ||
| */ | ||
| classes:{}, | ||
| /** | ||
| * @function | ||
| * @static | ||
| * @param {int} uid The id of the block within the page | ||
| * @param {object} properties | ||
| */ | ||
| setup_new_tree:function(uid, properties) { | ||
| Y.use('base','dom','io','node', function() { | ||
| properties = properties || {'instance':uid}; | ||
| blocks.navigation.treecollection[uid] = new blocks.navigation.classes.tree(uid, uid, properties); | ||
| }); | ||
| } | ||
| }; | ||
|
|
||
| /** | ||
| * @class tree | ||
| * @constructor | ||
| * @base blocks.dock.abstractblock | ||
| * @param {string} id The name of the tree | ||
| * @param {int} key The internal id within the tree store | ||
| * @param {object} properties Object containing tree properties | ||
| */ | ||
| blocks.navigation.classes.tree = function(id, key, properties) { | ||
| this.id = id; | ||
| this.key = key; | ||
| this.type = 'blocks.navigation.classes.tree'; | ||
| this.errorlog = []; | ||
| this.ajaxbranches = 0; | ||
| this.expansions = []; | ||
| this.instance = null; | ||
| this.cachedcontentnode = null; | ||
| this.cachedfooter = null; | ||
| this.position = 'block'; | ||
| this.skipsetposition = false; | ||
| if (properties) { | ||
| if (properties.expansions) { | ||
| this.expansions = properties.expansions; | ||
| } | ||
| if (properties.instance) { | ||
| this.instance = properties.instance; | ||
| } | ||
| } | ||
|
|
||
| if (Y.one('#inst'+this.id) === null) { | ||
| return; | ||
| } | ||
|
|
||
| for (var i in this.expansions) { | ||
| Y.one('#'+this.expansions[i].id).on('ajaxload|click', this.init_load_ajax, this, this.expansions[i]); | ||
| blocks.navigation.expandablebranchcount++; | ||
| } | ||
|
|
||
| var node = Y.one('#inst'+this.id); | ||
| node.all('.tree_item.branch').on('click', this.toggleexpansion , this); | ||
|
|
||
| this.init(node); | ||
|
|
||
| if (node.hasClass('block_js_expansion')) { | ||
| node.on('mouseover', function(e){this.toggleClass('mouseover');}, node); | ||
| node.on('mouseout', function(e){this.toggleClass('mouseover');}, node); | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Loads a branch via AJAX | ||
| * @param {event} The event object | ||
| * @param {object} A branch to load via ajax | ||
| */ | ||
| blocks.navigation.classes.tree.prototype.init_load_ajax = function(e, branch) { | ||
| e.stopPropagation(); | ||
| if (e.target.get('nodeName').toUpperCase() != 'P') { | ||
| return true; | ||
| } | ||
| var cfginstance = (this.instance != null)?'&instance='+this.instance:''; | ||
| Y.io(moodle_cfg.wwwroot+'/lib/ajax/getnavbranch.php', { | ||
| method:'POST', | ||
| data:'elementid='+branch.id+'&id='+branch.branchid+'&type='+branch.type+'&sesskey='+moodle_cfg.sesskey+cfginstance, | ||
| on: { | ||
| complete:this.load_ajax, | ||
| success:function() {Y.detach('click', this.init_load_ajax, e.target);} | ||
| }, | ||
| context:this, | ||
| arguments:{ | ||
| target:e.target | ||
| } | ||
| }); | ||
| return true; | ||
| } | ||
|
|
||
| /** | ||
| * Takes an branch provided through ajax and loads it into the tree | ||
| */ | ||
| blocks.navigation.classes.tree.prototype.load_ajax = function(tid, outcome, args) { | ||
| // Check the status | ||
| if (outcome.status!=0 && outcome.responseXML!=null) { | ||
| var branch = outcome.responseXML.documentElement; | ||
| if (branch!=null && this.add_branch(branch, args.target.ancestor('LI') ,1)) { | ||
| // If we get here everything worked perfectly | ||
| blocks.dock.resize(); | ||
| return true; | ||
| } | ||
| } | ||
| args.target.replaceClass('branch', 'emptybranch'); | ||
| return true; | ||
| } | ||
|
|
||
| /** | ||
| * Adds a branch into the tree provided with some XML | ||
| */ | ||
| blocks.navigation.classes.tree.prototype.add_branch = function(branchxml, target, depth) { | ||
|
|
||
| var branch = new blocks.navigation.classes.branch(this); | ||
| branch.construct_from_xml(branchxml); | ||
|
|
||
| var childrenul = false; | ||
| if (depth === 1) { | ||
| if (!branch.haschildren) { | ||
| return false; | ||
| } | ||
| childrenul = Y.Node.create('<ul></ul>'); | ||
| target.appendChild(childrenul); | ||
| } else { | ||
| childrenul = branch.inject_into_dom(target); | ||
| } | ||
|
|
||
| if (childrenul) { | ||
| for (var i=0;i<branch.children.childNodes.length;i++) { | ||
| this.add_branch(branch.children.childNodes[i], childrenul, depth+1); | ||
| } | ||
| } | ||
| return true; | ||
| } | ||
| /** | ||
| * Toggle a branch as expanded or collapsed | ||
| */ | ||
| blocks.navigation.classes.tree.prototype.toggleexpansion = function(e) { | ||
| e.target.ancestor('LI').toggleClass('collapsed'); | ||
| blocks.dock.resize(); | ||
| } | ||
|
|
||
| /** | ||
| * This class represents a branch for a tree | ||
| * @class tree | ||
| * @constructor | ||
| */ | ||
| blocks.navigation.classes.branch = function(tree) { | ||
| this.tree = tree; | ||
| this.name = null; | ||
| this.title = null; | ||
| this.classname = null; | ||
| this.id = null; | ||
| this.key = null; | ||
| this.type = null; | ||
| this.link = null; | ||
| this.icon = null; | ||
| this.expandable = null; | ||
| this.expansionceiling = null; | ||
| this.hidden = false; | ||
| this.haschildren = false; | ||
| this.children = false; | ||
| } | ||
| /** | ||
| * Constructs a branch from XML | ||
| */ | ||
| blocks.navigation.classes.branch.prototype.construct_from_xml = function(xml) { | ||
| this.title = xml.getAttribute('title'); | ||
| this.classname = xml.getAttribute('class'); | ||
| this.id = xml.getAttribute('id'); | ||
| this.link = xml.getAttribute('link'); | ||
| this.icon = xml.getAttribute('icon'); | ||
| this.key = xml.getAttribute('key'); | ||
| this.type = xml.getAttribute('type'); | ||
| this.expandable = xml.getAttribute('expandable'); | ||
| this.expansionceiling = xml.getAttribute('expansionceiling'); | ||
| this.hidden = (xml.getAttribute('hidden')=='true'); | ||
| this.haschildren = (xml.getAttribute('haschildren')=='true'); | ||
|
|
||
| if (this.id && this.id.match(/^expandable_branch_\d+$/)) { | ||
| blocks.navigation.expandablebranchcount++; | ||
| this.id = 'expandable_branch_'+blocks.navigation.expandablebranchcount; | ||
| } | ||
|
|
||
| for (var i=0; i<xml.childNodes.length;i++) { | ||
| var node = xml.childNodes[i]; | ||
| switch (node.nodeName.toLowerCase()) { | ||
| case 'name': | ||
| this.name = node.firstChild.nodeValue; | ||
| break; | ||
| case 'children': | ||
| this.children = node; | ||
| } | ||
| } | ||
| } | ||
| /** | ||
| * Injects a branch into the tree at the given location | ||
| */ | ||
| blocks.navigation.classes.branch.prototype.inject_into_dom = function(element) { | ||
|
|
||
| var branchli = Y.Node.create('<li></li>'); | ||
| var branchp = Y.Node.create('<p class="tree_item"></p>'); | ||
|
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| if ((this.expandable !== null || this.haschildren) && this.expansionceiling===null) { | ||
| branchli.addClass('collapsed'); | ||
| branchp.addClass('branch'); | ||
| branchp.on('click', this.tree.toggleexpansion, this.tree); | ||
| if (this.expandable) { | ||
| branchp.on('ajaxload|click', this.tree.init_load_ajax, this.tree, {branchid:this.key,id:this.id,type:this.type}); | ||
| } | ||
| } | ||
|
|
||
| if (this.myclass !== null) { | ||
| branchp.addClass(this.myclass); | ||
| } | ||
| if (this.id !== null) { | ||
| branchp.setAttribute('id', this.id); | ||
| } | ||
|
|
||
| var branchicon = false; | ||
| if (this.icon != null) { | ||
| branchicon = Y.Node.create('<img src="'+this.icon+'" alt="" />'); | ||
| this.name = ' '+this.name; | ||
| } | ||
| if (this.link === null) { | ||
| if (branchicon) { | ||
| branchp.appendChild(branchicon); | ||
| } | ||
| branchp.append(this.name.replace(/\n/g, '<br />')); | ||
| } else { | ||
| var branchlink = Y.Node.create('<a title="'+this.title+'" href="'+this.link+'">'+this.name.replace(/\n/g, '<br />')+'</a>'); | ||
| if (branchicon) { | ||
| branchlink.appendChild(branchicon); | ||
| } | ||
| if (this.hidden) { | ||
| branchlink.addClass('dimmed'); | ||
| } | ||
| branchp.appendChild(branchlink); | ||
| } | ||
|
|
||
| branchli.appendChild(branchp); | ||
| if (this.haschildren) { | ||
| var childrenul = Y.Node.create('<ul></ul>'); | ||
| branchli.appendChild(childrenul); | ||
| element.appendChild(branchli); | ||
| return childrenul | ||
| } else { | ||
| element.appendChild(branchli); | ||
| return false; | ||
| } | ||
| } | ||
|
|
||
| YUI({base: moodle_cfg.yui3loaderBase}).use('event-custom', 'node', function(Y){ | ||
| // Give the tree class the dock block properties | ||
| Y.augment(blocks.navigation.classes.tree, blocks.genericblock); | ||
| }); |
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