-/*!
- * Ext JS Library 3.3.0
- * Copyright(c) 2006-2010 Ext JS, Inc.
- * licensing@extjs.com
- * http://www.extjs.com/license
- */
-(function() {
-
-Ext.a11y.ARIA = Ext.apply(new Ext.util.Observable(), function() {
- return {
- setRole : function(el, role) {
- el = Ext.getDom(el);
- if(el) {
- el.setAttribute('role', role.toString());
- }
- },
-
- setProperty : function(el, key, value) {
- el = Ext.getDom(el);
- if(el) {
- el.setAttribute(key.toString(), value.toString());
- }
- }
- }
-}());
-
-var ARIA = Ext.a11y.ARIA;
-
-Ext.override(Ext.tree.TreeNode, {
- render : function(bulkRender){
- this.ui.render(bulkRender);
- if(!this.rendered){
- // make sure it is registered
- this.getOwnerTree().registerNode(this);
- this.rendered = true;
- this.fireEvent('noderender', this);
- if(this.expanded){
- this.expanded = false;
- this.expand(false, false);
- }
- }
- }
-});
-
-Ext.override(Ext.tree.TreePanel, {
- initARIA : function() {
- Ext.tree.TreePanel.superclass.initARIA.call(this);
- this.getSelectionModel().on('selectionchange', this.onNodeSelect, this);
- this.ariaTreeEl = this.body.down('.x-tree-root-ct');
- this.on('collapsenode', this.onNodeCollapse, this);
- this.on('expandnode', this.onNodeExpand, this);
- },
-
- // private
- registerNode : function(node){
- if(this.nodeHash[node.id] === undefined) {
- node.on('noderender', this.onNodeRender, this);
- }
- this.nodeHash[node.id] = node;
- },
-
- // private
- unregisterNode : function(node){
- node.un('noderender', this.onNodeRender, this);
- delete this.nodeHash[node.id];
- },
-
- onNodeRender : function(node) {
- var a = node.ui.anchor,
- level = this.rootVisible ? 1 : 0,
- pnode = node;
-
- if(node.isRoot) {
- ARIA.setRole(this.ariaTreeEl, 'tree');
- ARIA.setProperty(this.ariaTreeEl, 'aria-labelledby', Ext.id(node.ui.textNode));
- ARIA.setProperty(this.ariaTreeEl, 'aria-activedescendant', 'false');
- if(!this.rootVisible) {
- return;
- }
- }
- ARIA.setRole(node.ui.wrap, 'treeitem');
- ARIA.setProperty(node.ui.wrap, 'aria-labelledby', Ext.id(node.ui.textNode));
- ARIA.setProperty(node.ui.wrap, 'aria-expanded', 'false');
- ARIA.setProperty(node.ui.wrap, 'aria-selected', 'false');
- while (pnode.parentNode) {
- level++;
- pnode = pnode.parentNode;
- }
- ARIA.setProperty(node.ui.wrap, 'aria-level', level);
- if(!node.isLeaf()) {
- ARIA.setRole(node.ui.ctNode, 'group');
- ARIA.setProperty(node.ui.wrap, 'aria-expanded', node.isExpanded());
- }
- },
-
- onNodeSelect : function(sm, node) {
- ARIA.setProperty(this.ariaTreeEl, 'aria-activedescendant', Ext.id(node.ui.wrap));
- ARIA.setProperty(node.ui.wrap, 'aria-selected', 'true');
- },
-
- onNodeCollapse : function(node) {
- ARIA.setProperty(node.ui.wrap, 'aria-expanded', 'false');
- },
-
- onNodeExpand : function(node) {
- ARIA.setProperty(node.ui.wrap, 'aria-expanded', 'true');
- }
-});
-
-})();
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