extjs 3.4ドロップダウンツリー拡張

[Ext 3.x+Ext 2.x]ドロップダウンツリーExt.ux.ComboBoxTreeの記事の最後の2人のフィードバックに基づいて+号展開ノードをクリックするとリストボックスが消えてしまうことを自分で体験した.確かにこの現象があります.xのはこの問題があります.x正常、今コードを修正して以下のようにこの問題を解決します
 
 

ie8，firefox，chrom ,extjs  3.4

 
 
 

Ext.ux.ComboBoxTree = function(){
	this.treeId = Ext.id()+'-tree';
	this.maxHeight = arguments[0].maxHeight || arguments[0].height || this.maxHeight;
	this.tpl = new Ext.Template('<tpl for="."><div style="height:'+this.maxHeight+'px"><div id="'+this.treeId+'"></div></div></tpl>');
	this.store = new Ext.data.SimpleStore({fields:[],data:[[]]});
	this.selectedClass = '';
	this.mode = 'local';
	this.triggerAction = 'all';
	this.onSelect = Ext.emptyFn;
	this.editable = false;
	this.beforeBlur = Ext.emptyFn;

	//all: 
	//exceptRoot： ， （ ）
	//folder: （ ） 
	//leaf： 
	this.selectNodeModel = arguments[0].selectNodeModel || 'exceptRoot';
	
	this.addEvents('afterchange');

	Ext.ux.ComboBoxTree.superclass.constructor.apply(this, arguments);

}

Ext.extend(Ext.ux.ComboBoxTree,Ext.form.ComboBox, {

	expand : function(){
		Ext.ux.ComboBoxTree.superclass.expand.call(this);
		if(this.tree.rendered){
			return;
		}

		Ext.apply(this.tree,{height:this.maxHeight, width:(this.listWidth||this.width-(Ext.isIE?3:0))-2, border:false, autoScroll:true});
		if(this.tree.xtype){
			this.tree = Ext.ComponentMgr.create(this.tree, this.tree.xtype);
		}
		this.tree.render(this.treeId);
		
		var root = this.tree.getRootNode();
		if(!root.isLoaded())
			root.reload();

		this.tree.on('click',function(node){
			var selModel = this.selectNodeModel;
			var isLeaf = node.isLeaf();
			
			if((node == root) && selModel != 'all'){
				return;
			}else if(selModel=='folder' && isLeaf){
				return;
			}else if(selModel=='leaf' && !isLeaf){
				return;
			}
			
			var oldNode = this.getNode();
			if(this.fireEvent('beforeselect', this, node, oldNode) !== false) {
				this.setValue(node);
				this.collapse();

				this.fireEvent('select', this, node, oldNode);
				(oldNode !== node) ? this.fireEvent('afterchange', this, node, oldNode) : '';
			}
		}, this);
    },
    
	setValue : function(node){
		this.node = node;
        var text = node.text;
        this.lastSelectionText = text;
        if(this.hiddenField){
            this.hiddenField.value = node.id;
        }
        Ext.form.ComboBox.superclass.setValue.call(this, text);
        this.value = node.id;
    },
    
    getValue : function(){
    	return typeof this.value != 'undefined' ? this.value : '';
    },

	getNode : function(){
		return this.node;
	},

	clearValue : function(){
		Ext.ux.ComboBoxTree.superclass.clearValue.call(this);
        this.node = null;
    },
	//  onViewClick，   
    onViewClick : function(doFocus) {  
        var index = this.view.getSelectedIndexes()[0], s = this.store, r = s.getAt(index);  
        if (r) {  
            this.onSelect(r, index);  
        }  
        if (doFocus !== false) {  
            this.el.focus();  
        }  
    },  
	// private
    destroy: function() {
		Ext.ux.ComboBoxTree.superclass.destroy.call(this);
		Ext.destroy([this.node,this.tree]);
		delete this.node;
    }
});

Ext.reg('combotree', Ext.ux.ComboBoxTree);