ExtJS 4.0 改善Ext.grid.plugin.RowEditing (更新v1.4版本2011-09-11)

• ExtJS 4.0 改善Ext.grid.plugin.RowEditing (重构,v1.4版本,2011-09-11)
• Extjs4.2.1 Ext.grid.plugin.RowEditing 保存按钮不可用
• Ext.grid.plugin.RowEditing点击取消的操作 （EXT4.0）
• Extjs Ext.grid.plugin.RowEditing add insert saveBtn disabled
• Ext.grid.plugin.RowExpander的使用

Ext4.0 自带的Ext.ux.RowEditing还不够完善,随手写个ux来用下,

v1.4 2011-09-12 变更内容:

1.重构,修复不少bug以及合并/新增一些配置项(具体看附件中的文档)

2.支持jsduck生成文档 (https://github.com/senchalabs/jsduck)

v1.0 2011.04.27 变更内容: 
1.增加canceledit事件
2.增加startAdd方法,方便crud表格的添加操作
3.添加点击取消按钮后,自动重置或删除记录的功能

v1.1 2011.05.03 变更内容: 
1.startAdd方法增加position参数,修复autoSync设值的bug
2.配置参数removePhantomsOnCancel改名为autoRecoverOnCancel 
3.startEdit前先调用cancelEdit函数,以便正确的恢复现场

v1.2 2011.05.04 变更内容: 
1.包名改为Ext.ux.grid.plugin
2.添加配置参数hideTooltipOnAdd
3.判断是否删除新增记录的逻辑优化
4.代码风格等方面的改进

v1.3 2011.05.22 变更内容: 

1. 设置clicksToEdit为0,可取消双击/单击事件触发编辑

2. 提供field默认配置,只需给column添加一个fieldType 

           {
               text: 'Enable',
               dataIndex: 'enable',
               width: 80,
               renderer: function(v){return v?'Enable':'Disable'},
               fieldType: 'checkboxfield',
               field: {
                   boxLabel: 'Enable'
               }
           }

代码如下:

 /**
 * @class Ext.ux.grid.plugin.RowEditing
 * @extends Ext.grid.plugin.RowEditing
 * @xtype ux.rowediting
 * 
 * 对Ext原有的RowEditing插件增加新功能.<br/>
 * Improve Ext.ux.grid.plugin.RowEditing,add some usefull features.<br/>
 * 
 * @author      tz <atian25@qq.com> <br/>
 * @date        2011-08-20  <br/>
 * @version     1.4   <br/>
 * @blog        http://atian25.iteye.com    <br/>
 * @forum       http://www.sencha.com/forum/showthread.php?131482-Ext.ux.RowEditing-add-some-usefull-features<br/>
 *
 */
Ext.define('Ext.ux.grid.plugin.RowEditing', {
    extend: 'Ext.grid.plugin.RowEditing',
    alias: 'plugin.ux.rowediting', 
    
    /**
     * 是否添加记录在当前位置<br/>
     * whether add record at current rowIndex.<br/>
     * see {@link #cfg-addPosition}
     * @cfg {Boolean}
     */
    addInPlace: false,
    
    /**
     * 添加记录的具体位置 <br/>
     * * 当addInPlace为true时,该参数<=0代表当前位置之前,否则代表当前位置之后<br/>
     * * 当addInPlace为false时,代表具体的rowIndex,-1则为最后<br/>
     * Special rowIndex of added record.<br/>
     * * when {@link #cfg-addInPlace} is true, this cfg means before(<=0) or after(>0) current rowIndex.<br/>
     * * when {@link #cfg-addInPlace} is false, this cfg means the exact rowIndex.-1 means at the end.
     * @cfg {Number}
     */
    addPosition: 0,
    
    /**
     * 是否点击触发事件,0代表不触发,1代表单击,2代表双击,默认为双击.<br/>
     * The number of clicks on a grid required to display the editor (disable:0,click:1,dblclick:2)
     * @cfg {Number}
     */
    clicksToEdit:2,
    
    /**
     * 是否在取消编辑的时候自动删除添加的记录
     * if true, auto remove phantom record on cancel,default is true.
     * @cfg {Boolean}
     */
    autoRecoverOnCancel: true,
    
    /**
     * adding flag
     * @private
     * @type Boolean
     */
    adding: false,
    
    autoCancel:true,
    
    /**
     * when add record, hide error tooltip for the first time
     * @private
     * @type Boolean
     */
    hideTooltipOnAdd: true,
    
    /**
     * register canceledit event && relay canceledit event to grid
     * @param {Ext.grid.Panel} grid
     * @override
     * @private
     */
    init:function(grid){
        var me = this;
        /**
         * 取消编辑事件.<br/>
         * Fires canceledit event.And will be relayEvents to Grid.<br/>
         * @see {@link Ext.ux.grid.RowActions#event-beforeaction} <br/>
         * @event canceledit
         * @param {Object} context
         */
        me.addEvents('canceledit');
        me.callParent(arguments);
        grid.addEvents('canceledit');
        grid.relayEvents(me, ['canceledit']);
    },
    
    /**
     * 提供默认的Editor配置
     *      @example
     *      {header:'手机',dataIndex:'phone',fieldType:'numberfield',field:{allowBlank:true}}
     * provide default field config
     * @param {String} fieldType 可选值:numberfield,checkboxfield,passwordField
     * @return {Object} 
     * @protected
     */
    getFieldCfg: function(fieldType){
        switch(fieldType){
            case 'passwordField':
                return {
                    xtype: 'textfield',
                    inputType: 'password',
                    allowBlank:false
                }
            case 'numberfield':
                return {
                    xtype: 'numberfield',
		            hideTrigger: true,
		            keyNavEnabled: false,
		            mouseWheelEnabled: false,
		            allowBlank:false
		        }
                
	        case 'checkboxfield':
	            return {
	                xtype: 'checkboxfield',
	                inputValue: 'true',
	                uncheckedValue: 'false'
	            }
	        }
    },
    
    /**
     * Help to config field,just giving a fieldType and field as additional cfg.
     * see {@link #getFieldCfg}
     * @private
     * @override
     */
    getEditor: function() {
        var me = this;

        if (!me.editor) {
            Ext.each(me.grid.headerCt.getGridColumns(),function(item,index,allItems){
                if(item.fieldType){
                    item.field = Ext.applyIf(item.field||{},this.getFieldCfg(item.fieldType))
                }
            },this)
            // keep a reference for custom editor..
            me.editor = me.initEditor();
        }
        me.editor.editingPlugin = me
        return me.editor;
    },
    
    /**
     * if clicksToEdit===0 then mun the click/dblclick event
     * @private
     * @override
     */
    initEditTriggers: function(){
        var me = this 
        var clickEvent = me.clicksToEdit === 1 ? 'click' : 'dblclick'
        me.callParent(arguments); 
        if(me.clicksToEdit === 0){
            me.mun(me.view, 'cell' + clickEvent, me.startEditByClick, me); 
        }
    },
    
    /**
     * 添加记录
     * add a record and start edit it (will not sync store)
     * @param {Model/Object} data Data to initialize the Model's fields with <br/>
     * @param {Object} config see {@link #cfg-addPosition}. 
     */
    startAdd: function(data,config){
        var me = this;
        var cfg = Ext.apply({
            addInPlace: this.addInPlace,
            addPosition: this.addPosition,
            colIndex: 0
        },config)
        
        //find the position
        var position;
        if(cfg.addInPlace){
            var selected = me.grid.getSelectionModel().getSelection()
            if(selected && selected.length>0){
                position = me.grid.store.indexOf(selected[0]) 
                console.log('a',position)
                position += (cfg.addPosition<=0) ? 0: 1
            }else{
                position = 0
            }
        }else{
        	position = (cfg.addPosition==-1 ? me.grid.store.getCount() : cfg.addPosition) || 0
        }
        
        var record = data.isModel ? data : me.grid.store.model.create(data);
        var autoSync = me.grid.store.autoSync;
        me.grid.store.autoSync = false;
        me.grid.store.insert(position, record);
        me.grid.store.autoSync = autoSync;
        
        me.adding = true
        me.startEdit(position,cfg.colIndex);
        
        //since autoCancel:true dont work for me
        if(me.hideTooltipOnAdd && me.getEditor().hideToolTip){
            me.getEditor().hideToolTip()
        }
    },
    
    /**
     * 编辑之前,自动取消编辑
     * Modify: if is editing, cancel first.
     * @private
     * @override
     */
    startEdit: function(record, columnHeader) {
        var me = this;
        if(me.editing){
            me.cancelEdit(); 
        }
        me.callParent(arguments);
    },
    
    /**
     * 修改adding的状态值
     * Modify: set adding=false
     * @private
     * @override
     */
    completeEdit: function() {
        var me = this;
        if (me.editing && me.validateEdit()) {
            me.editing = false;
            me.fireEvent('edit', me.context);
        }
        me.adding = false
    },
    
    /**
     * 取消编辑
     * 1.fireEvent 'canceledit'
     * 2.when autoRecoverOnCancel is true, if record is phantom then remove it
     * @private
     * @override
     */
    cancelEdit: function(){
        var me = this;
        if (me.editing) {
            me.getEditor().cancelEdit();
            me.editing = false;
            me.fireEvent('canceledit', me.context); 
            if (me.autoRecoverOnCancel){
                if(me.adding){
                    me.context.record.store.remove(me.context.record);
                    me.adding = false
                }else{
                    //不需要reject,因为Editor没有更改record.
                    //me.context.record.reject()
                }
            }
        }
    }
})

//ext-lang-zh_CN
if (Ext.grid.RowEditor) {
    Ext.apply(Ext.grid.RowEditor.prototype, {
        saveBtnText: '保存',
        cancelBtnText: '取消',
        errorsText: '错误信息',
        dirtyText: '已修改,你需要提交或取消变更'
    });
}