TreeEditor.js
资源名称:ext-3.0.0.zip [点击查看]
上传用户:shuoshiled
上传日期:2018-01-28
资源大小:10124k
文件大小:5k
源码类别:
中间件编程
开发平台:
JavaScript
- /*!
- * Ext JS Library 3.0.0
- * Copyright(c) 2006-2009 Ext JS, LLC
- * licensing@extjs.com
- * http://www.extjs.com/license
- */
- /**
- * @class Ext.tree.TreeEditor
- * @extends Ext.Editor
- * Provides editor functionality for inline tree node editing. Any valid {@link Ext.form.Field} subclass can be used
- * as the editor field.
- * @constructor
- * @param {TreePanel} tree
- * @param {Object} fieldConfig (optional) Either a prebuilt {@link Ext.form.Field} instance or a Field config object
- * that will be applied to the default field instance (defaults to a {@link Ext.form.TextField}).
- * @param {Object} config (optional) A TreeEditor config object
- */
- Ext.tree.TreeEditor = function(tree, fc, config){
- fc = fc || {};
- var field = fc.events ? fc : new Ext.form.TextField(fc);
- Ext.tree.TreeEditor.superclass.constructor.call(this, field, config);
- this.tree = tree;
- if(!tree.rendered){
- tree.on('render', this.initEditor, this);
- }else{
- this.initEditor(tree);
- }
- };
- Ext.extend(Ext.tree.TreeEditor, Ext.Editor, {
- /**
- * @cfg {String} alignment
- * The position to align to (see {@link Ext.Element#alignTo} for more details, defaults to "l-l").
- */
- alignment: "l-l",
- // inherit
- autoSize: false,
- /**
- * @cfg {Boolean} hideEl
- * True to hide the bound element while the editor is displayed (defaults to false)
- */
- hideEl : false,
- /**
- * @cfg {String} cls
- * CSS class to apply to the editor (defaults to "x-small-editor x-tree-editor")
- */
- cls: "x-small-editor x-tree-editor",
- /**
- * @cfg {Boolean} shim
- * True to shim the editor if selects/iframes could be displayed beneath it (defaults to false)
- */
- shim:false,
- // inherit
- shadow:"frame",
- /**
- * @cfg {Number} maxWidth
- * The maximum width in pixels of the editor field (defaults to 250). Note that if the maxWidth would exceed
- * the containing tree element's size, it will be automatically limited for you to the container width, taking
- * scroll and client offsets into account prior to each edit.
- */
- maxWidth: 250,
- /**
- * @cfg {Number} editDelay The number of milliseconds between clicks to register a double-click that will trigger
- * editing on the current node (defaults to 350). If two clicks occur on the same node within this time span,
- * the editor for the node will display, otherwise it will be processed as a regular click.
- */
- editDelay : 350,
- initEditor : function(tree){
- tree.on('beforeclick', this.beforeNodeClick, this);
- tree.on('dblclick', this.onNodeDblClick, this);
- this.on('complete', this.updateNode, this);
- this.on('beforestartedit', this.fitToTree, this);
- this.on('startedit', this.bindScroll, this, {delay:10});
- this.on('specialkey', this.onSpecialKey, this);
- },
- // private
- fitToTree : function(ed, el){
- var td = this.tree.getTreeEl().dom, nd = el.dom;
- if(td.scrollLeft > nd.offsetLeft){ // ensure the node left point is visible
- td.scrollLeft = nd.offsetLeft;
- }
- var w = Math.min(
- this.maxWidth,
- (td.clientWidth > 20 ? td.clientWidth : td.offsetWidth) - Math.max(0, nd.offsetLeft-td.scrollLeft) - /*cushion*/5);
- this.setSize(w, '');
- },
- /**
- * Edit the text of the passed {@link Ext.tree.TreeNode TreeNode}.
- * @param node {Ext.tree.TreeNode} The TreeNode to edit. The TreeNode must be {@link Ext.tree.TreeNode#editable editable}.
- */
- triggerEdit : function(node, defer){
- this.completeEdit();
- if(node.attributes.editable !== false){
- /**
- * The {@link Ext.tree.TreeNode TreeNode} this editor is bound to. Read-only.
- * @type Ext.tree.TreeNode
- * @property editNode
- */
- this.editNode = node;
- if(this.tree.autoScroll){
- Ext.fly(node.ui.getEl()).scrollIntoView(this.tree.body);
- }
- var value = node.text || '';
- if (!Ext.isGecko && Ext.isEmpty(node.text)){
- node.setText(' ');
- }
- this.autoEditTimer = this.startEdit.defer(this.editDelay, this, [node.ui.textNode, value]);
- return false;
- }
- },
- // private
- bindScroll : function(){
- this.tree.getTreeEl().on('scroll', this.cancelEdit, this);
- },
- // private
- beforeNodeClick : function(node, e){
- clearTimeout(this.autoEditTimer);
- if(this.tree.getSelectionModel().isSelected(node)){
- e.stopEvent();
- return this.triggerEdit(node);
- }
- },
- onNodeDblClick : function(node, e){
- clearTimeout(this.autoEditTimer);
- },
- // private
- updateNode : function(ed, value){
- this.tree.getTreeEl().un('scroll', this.cancelEdit, this);
- this.editNode.setText(value);
- },
- // private
- onHide : function(){
- Ext.tree.TreeEditor.superclass.onHide.call(this);
- if(this.editNode){
- this.editNode.ui.focus.defer(50, this.editNode.ui);
- }
- },
- // private
- onSpecialKey : function(field, e){
- var k = e.getKey();
- if(k == e.ESC){
- e.stopEvent();
- this.cancelEdit();
- }else if(k == e.ENTER && !e.hasModifier()){
- e.stopEvent();
- this.completeEdit();
- }
- }
- });