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- <pre class="prettyprint lang-js">/*!
- * Ext JS Library 3.2.2
- * Copyright(c) 2006-2010 Ext JS, Inc.
- * licensing@extjs.com
- * http://www.extjs.com/license
- */
-<div id="cls-Ext.tree.TreeNode"></div>/**
- * @class Ext.tree.TreeNode
- * @extends Ext.data.Node
- * @cfg {String} text The text for this node
- * @cfg {Boolean} expanded true to start the node expanded
- * @cfg {Boolean} allowDrag False to make this node undraggable if {@link #draggable} = true (defaults to true)
- * @cfg {Boolean} allowDrop False if this node cannot have child nodes dropped on it (defaults to true)
- * @cfg {Boolean} disabled true to start the node disabled
- * @cfg {String} icon The path to an icon for the node. The preferred way to do this
- * is to use the cls or iconCls attributes and add the icon via a CSS background image.
- * @cfg {String} cls A css class to be added to the node
- * @cfg {String} iconCls A css class to be added to the nodes icon element for applying css background images
- * @cfg {String} href URL of the link used for the node (defaults to #)
- * @cfg {String} hrefTarget target frame for the link
- * @cfg {Boolean} hidden True to render hidden. (Defaults to false).
- * @cfg {String} qtip An Ext QuickTip for the node
- * @cfg {Boolean} expandable If set to true, the node will always show a plus/minus icon, even when empty
- * @cfg {String} qtipCfg An Ext QuickTip config for the node (used instead of qtip)
- * @cfg {Boolean} singleClickExpand True for single click expand on this node
- * @cfg {Function} uiProvider A UI <b>class</b> to use for this node (defaults to Ext.tree.TreeNodeUI)
- * @cfg {Boolean} checked True to render a checked checkbox for this node, false to render an unchecked checkbox
- * (defaults to undefined with no checkbox rendered)
- * @cfg {Boolean} draggable True to make this node draggable (defaults to false)
- * @cfg {Boolean} isTarget False to not allow this node to act as a drop target (defaults to true)
- * @cfg {Boolean} allowChildren False to not allow this node to have child nodes (defaults to true)
- * @cfg {Boolean} editable False to not allow this node to be edited by an {@link Ext.tree.TreeEditor} (defaults to true)
- * @constructor
- * @param {Object/String} attributes The attributes/config for the node or just a string with the text for the node
- */
-Ext.tree.TreeNode = function(attributes){
- attributes = attributes || {};
- if(Ext.isString(attributes)){
- attributes = {text: attributes};
- }
- this.childrenRendered = false;
- this.rendered = false;
- Ext.tree.TreeNode.superclass.constructor.call(this, attributes);
- this.expanded = attributes.expanded === true;
- this.isTarget = attributes.isTarget !== false;
- this.draggable = attributes.draggable !== false && attributes.allowDrag !== false;
- this.allowChildren = attributes.allowChildren !== false && attributes.allowDrop !== false;
-
- /**
- * Read-only. The text for this node. To change it use <code>{@link #setText}</code>.
- * @type String
- */
- this.text = attributes.text;
- /**
- * True if this node is disabled.
- * @type Boolean
- */
- this.disabled = attributes.disabled === true;
- /**
- * True if this node is hidden.
- * @type Boolean
- */
- this.hidden = attributes.hidden === true;
-
- this.addEvents(
- /**
- * @event textchange
- * Fires when the text for this node is changed
- * @param {Node} this This node
- * @param {String} text The new text
- * @param {String} oldText The old text
- */
- 'textchange',
- /**
- * @event beforeexpand
- * Fires before this node is expanded, return false to cancel.
- * @param {Node} this This node
- * @param {Boolean} deep
- * @param {Boolean} anim
- */
- 'beforeexpand',
- /**
- * @event beforecollapse
- * Fires before this node is collapsed, return false to cancel.
- * @param {Node} this This node
- * @param {Boolean} deep
- * @param {Boolean} anim
- */
- 'beforecollapse',
- /**
- * @event expand
- * Fires when this node is expanded
- * @param {Node} this This node
- */
- 'expand',
- /**
- * @event disabledchange
- * Fires when the disabled status of this node changes
- * @param {Node} this This node
- * @param {Boolean} disabled
- */
- 'disabledchange',
- /**
- * @event collapse
- * Fires when this node is collapsed
- * @param {Node} this This node
- */
- 'collapse',
- /**
- * @event beforeclick
- * Fires before click processing. Return false to cancel the default action.
- * @param {Node} this This node
- * @param {Ext.EventObject} e The event object
- */
- 'beforeclick',
- /**
- * @event click
- * Fires when this node is clicked
- * @param {Node} this This node
- * @param {Ext.EventObject} e The event object
- */
- 'click',
- /**
- * @event checkchange
- * Fires when a node with a checkbox's checked property changes
- * @param {Node} this This node
- * @param {Boolean} checked
- */
- 'checkchange',
- /**
- * @event beforedblclick
- * Fires before double click processing. Return false to cancel the default action.
- * @param {Node} this This node
- * @param {Ext.EventObject} e The event object
- */
- 'beforedblclick',
- /**
- * @event dblclick
- * Fires when this node is double clicked
- * @param {Node} this This node
- * @param {Ext.EventObject} e The event object
- */
- 'dblclick',
- /**
- * @event contextmenu
- * Fires when this node is right clicked
- * @param {Node} this This node
- * @param {Ext.EventObject} e The event object
- */
- 'contextmenu',
- /**
- * @event beforechildrenrendered
- * Fires right before the child nodes for this node are rendered
- * @param {Node} this This node
- */
- 'beforechildrenrendered'
- );
-
- var uiClass = this.attributes.uiProvider || this.defaultUI || Ext.tree.TreeNodeUI;
-
- /**
- * Read-only. The UI for this node
- * @type TreeNodeUI
- */
- this.ui = new uiClass(this);
-};
-Ext.extend(Ext.tree.TreeNode, Ext.data.Node, {
- preventHScroll : true,
- /**
- * Returns true if this node is expanded
- * @return {Boolean}
- */
- isExpanded : function(){
- return this.expanded;
- },
-
-/**
- * Returns the UI object for this node.
- * @return {TreeNodeUI} The object which is providing the user interface for this tree
- * node. Unless otherwise specified in the {@link #uiProvider}, this will be an instance
- * of {@link Ext.tree.TreeNodeUI}
- */
- getUI : function(){
- return this.ui;
- },
-
- getLoader : function(){
- var owner;
- return this.loader || ((owner = this.getOwnerTree()) && owner.loader ? owner.loader : (this.loader = new Ext.tree.TreeLoader()));
- },
-
- // private override
- setFirstChild : function(node){
- var of = this.firstChild;
- Ext.tree.TreeNode.superclass.setFirstChild.call(this, node);
- if(this.childrenRendered && of && node != of){
- of.renderIndent(true, true);
- }
- if(this.rendered){
- this.renderIndent(true, true);
- }
- },
-
- // private override
- setLastChild : function(node){
- var ol = this.lastChild;
- Ext.tree.TreeNode.superclass.setLastChild.call(this, node);
- if(this.childrenRendered && ol && node != ol){
- ol.renderIndent(true, true);
- }
- if(this.rendered){
- this.renderIndent(true, true);
- }
- },
-
- // these methods are overridden to provide lazy rendering support
- // private override
- appendChild : function(n){
- if(!n.render && !Ext.isArray(n)){
- n = this.getLoader().createNode(n);
- }
- var node = Ext.tree.TreeNode.superclass.appendChild.call(this, n);
- if(node && this.childrenRendered){
- node.render();
- }
- this.ui.updateExpandIcon();
- return node;
- },
-
- // private override
- removeChild : function(node, destroy){
- this.ownerTree.getSelectionModel().unselect(node);
- Ext.tree.TreeNode.superclass.removeChild.apply(this, arguments);
- // only update the ui if we're not destroying
- if(!destroy){
- // if it's been rendered remove dom node
- if(node.ui.rendered){
- node.ui.remove();
- }
- if(this.childNodes.length < 1){
- this.collapse(false, false);
- }else{
- this.ui.updateExpandIcon();
- }
- if(!this.firstChild && !this.isHiddenRoot()){
- this.childrenRendered = false;
- }
- }
- return node;
- },
-
- // private override
- insertBefore : function(node, refNode){
- if(!node.render){
- node = this.getLoader().createNode(node);
- }
- var newNode = Ext.tree.TreeNode.superclass.insertBefore.call(this, node, refNode);
- if(newNode && refNode && this.childrenRendered){
- node.render();
- }
- this.ui.updateExpandIcon();
- return newNode;
- },
-
- /**
- * Sets the text for this node
- * @param {String} text
- */
- setText : function(text){
- var oldText = this.text;
- this.text = this.attributes.text = text;
- if(this.rendered){ // event without subscribing
- this.ui.onTextChange(this, text, oldText);
- }
- this.fireEvent('textchange', this, text, oldText);
- },
-
- /**
- * Triggers selection of this node
- */
- select : function(){
- var t = this.getOwnerTree();
- if(t){
- t.getSelectionModel().select(this);
- }
- },
-
- /**
- * Triggers deselection of this node
- * @param {Boolean} silent (optional) True to stop selection change events from firing.
- */
- unselect : function(silent){
- var t = this.getOwnerTree();
- if(t){
- t.getSelectionModel().unselect(this, silent);
- }
- },
-
- /**
- * Returns true if this node is selected
- * @return {Boolean}
- */
- isSelected : function(){
- var t = this.getOwnerTree();
- return t ? t.getSelectionModel().isSelected(this) : false;
- },
-
- /**
- * Expand this node.
- * @param {Boolean} deep (optional) True to expand all children as well
- * @param {Boolean} anim (optional) false to cancel the default animation
- * @param {Function} callback (optional) A callback to be called when
- * expanding this node completes (does not wait for deep expand to complete).
- * Called with 1 parameter, this node.
- * @param {Object} scope (optional) The scope (<code>this</code> reference) in which the callback is executed. Defaults to this TreeNode.
- */
- expand : function(deep, anim, callback, scope){
- if(!this.expanded){
- if(this.fireEvent('beforeexpand', this, deep, anim) === false){
- return;
- }
- if(!this.childrenRendered){
- this.renderChildren();
- }
- this.expanded = true;
- if(!this.isHiddenRoot() && (this.getOwnerTree().animate && anim !== false) || anim){
- this.ui.animExpand(function(){
- this.fireEvent('expand', this);
- this.runCallback(callback, scope || this, [this]);
- if(deep === true){
- this.expandChildNodes(true);
- }
- }.createDelegate(this));
- return;
- }else{
- this.ui.expand();
- this.fireEvent('expand', this);
- this.runCallback(callback, scope || this, [this]);
- }
- }else{
- this.runCallback(callback, scope || this, [this]);
- }
- if(deep === true){
- this.expandChildNodes(true);
- }
- },
-
- runCallback : function(cb, scope, args){
- if(Ext.isFunction(cb)){
- cb.apply(scope, args);
- }
- },
-
- isHiddenRoot : function(){
- return this.isRoot && !this.getOwnerTree().rootVisible;
- },
-
- /**
- * Collapse this node.
- * @param {Boolean} deep (optional) True to collapse all children as well
- * @param {Boolean} anim (optional) false to cancel the default animation
- * @param {Function} callback (optional) A callback to be called when
- * expanding this node completes (does not wait for deep expand to complete).
- * Called with 1 parameter, this node.
- * @param {Object} scope (optional) The scope (<code>this</code> reference) in which the callback is executed. Defaults to this TreeNode.
- */
- collapse : function(deep, anim, callback, scope){
- if(this.expanded && !this.isHiddenRoot()){
- if(this.fireEvent('beforecollapse', this, deep, anim) === false){
- return;
- }
- this.expanded = false;
- if((this.getOwnerTree().animate && anim !== false) || anim){
- this.ui.animCollapse(function(){
- this.fireEvent('collapse', this);
- this.runCallback(callback, scope || this, [this]);
- if(deep === true){
- this.collapseChildNodes(true);
- }
- }.createDelegate(this));
- return;
- }else{
- this.ui.collapse();
- this.fireEvent('collapse', this);
- this.runCallback(callback, scope || this, [this]);
- }
- }else if(!this.expanded){
- this.runCallback(callback, scope || this, [this]);
- }
- if(deep === true){
- var cs = this.childNodes;
- for(var i = 0, len = cs.length; i < len; i++) {
- cs[i].collapse(true, false);
- }
- }
- },
-
- // private
- delayedExpand : function(delay){
- if(!this.expandProcId){
- this.expandProcId = this.expand.defer(delay, this);
- }
- },
-
- // private
- cancelExpand : function(){
- if(this.expandProcId){
- clearTimeout(this.expandProcId);
- }
- this.expandProcId = false;
- },
-
- /**
- * Toggles expanded/collapsed state of the node
- */
- toggle : function(){
- if(this.expanded){
- this.collapse();
- }else{
- this.expand();
- }
- },
-
- /**
- * Ensures all parent nodes are expanded, and if necessary, scrolls
- * the node into view.
- * @param {Function} callback (optional) A function to call when the node has been made visible.
- * @param {Object} scope (optional) The scope (<code>this</code> reference) in which the callback is executed. Defaults to this TreeNode.
- */
- ensureVisible : function(callback, scope){
- var tree = this.getOwnerTree();
- tree.expandPath(this.parentNode ? this.parentNode.getPath() : this.getPath(), false, function(){
- var node = tree.getNodeById(this.id); // Somehow if we don't do this, we lose changes that happened to node in the meantime
- tree.getTreeEl().scrollChildIntoView(node.ui.anchor);
- this.runCallback(callback, scope || this, [this]);
- }.createDelegate(this));
- },
-
- /**
- * Expand all child nodes
- * @param {Boolean} deep (optional) true if the child nodes should also expand their child nodes
- */
- expandChildNodes : function(deep){
- var cs = this.childNodes;
- for(var i = 0, len = cs.length; i < len; i++) {
- cs[i].expand(deep);
- }
- },
-
- /**
- * Collapse all child nodes
- * @param {Boolean} deep (optional) true if the child nodes should also collapse their child nodes
- */
- collapseChildNodes : function(deep){
- var cs = this.childNodes;
- for(var i = 0, len = cs.length; i < len; i++) {
- cs[i].collapse(deep);
- }
- },
-
- /**
- * Disables this node
- */
- disable : function(){
- this.disabled = true;
- this.unselect();
- if(this.rendered && this.ui.onDisableChange){ // event without subscribing
- this.ui.onDisableChange(this, true);
- }
- this.fireEvent('disabledchange', this, true);
- },
-
- /**
- * Enables this node
- */
- enable : function(){
- this.disabled = false;
- if(this.rendered && this.ui.onDisableChange){ // event without subscribing
- this.ui.onDisableChange(this, false);
- }
- this.fireEvent('disabledchange', this, false);
- },
-
- // private
- renderChildren : function(suppressEvent){
- if(suppressEvent !== false){
- this.fireEvent('beforechildrenrendered', this);
- }
- var cs = this.childNodes;
- for(var i = 0, len = cs.length; i < len; i++){
- cs[i].render(true);
- }
- this.childrenRendered = true;
- },
-
- // private
- sort : function(fn, scope){
- Ext.tree.TreeNode.superclass.sort.apply(this, arguments);
- if(this.childrenRendered){
- var cs = this.childNodes;
- for(var i = 0, len = cs.length; i < len; i++){
- cs[i].render(true);
- }
- }
- },
-
- // private
- render : function(bulkRender){
- this.ui.render(bulkRender);
- if(!this.rendered){
- // make sure it is registered
- this.getOwnerTree().registerNode(this);
- this.rendered = true;
- if(this.expanded){
- this.expanded = false;
- this.expand(false, false);
- }
- }
- },
-
- // private
- renderIndent : function(deep, refresh){
- if(refresh){
- this.ui.childIndent = null;
- }
- this.ui.renderIndent();
- if(deep === true && this.childrenRendered){
- var cs = this.childNodes;
- for(var i = 0, len = cs.length; i < len; i++){
- cs[i].renderIndent(true, refresh);
- }
- }
- },
-
- beginUpdate : function(){
- this.childrenRendered = false;
- },
-
- endUpdate : function(){
- if(this.expanded && this.rendered){
- this.renderChildren();
- }
- },
-
- //inherit docs
- destroy : function(silent){
- if(silent === true){
- this.unselect(true);
- }
- Ext.tree.TreeNode.superclass.destroy.call(this, silent);
- Ext.destroy(this.ui, this.loader);
- this.ui = this.loader = null;
- },
-
- // private
- onIdChange : function(id){
- this.ui.onIdChange(id);
- }
-});
-
-Ext.tree.TreePanel.nodeTypes.node = Ext.tree.TreeNode;</pre>
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