文本框双击

爱被打了一巴掌 2022-07-26 05:12 197阅读 0赞

在ext-all.js中添加可双击文本框组件：

Ext.form.WMTextField = Ext.extend(Ext.form.TextField, {
    		initComponent : function () {
    			Ext.form.TextField.superclass.initComponent.call(this);
    			this.addEvents('autosize', 'keydown', 'keyup', 'keypress', 'dblclick');
    		},
    		initEvents : function () {
    			Ext.form.TextField.superclass.initEvents.call(this);
    			if (this.validationEvent == 'keyup') {
    				this.validationTask = new Ext.util.DelayedTask(this.validate, this);
    				this.mon(this.el, 'keyup', this.filterValidation, this);
    			} else if (this.validationEvent !== false) {
    				this.mon(this.el, this.validationEvent, this.validate, this, {
    					buffer : this.validationDelay
    				});
    			}
    			if (this.selectOnFocus || this.emptyText) {
    				this.on('focus', this.preFocus, this);
    
    				this.mon(this.el, 'mousedown', function () {
    					if (!this.hasFocus) {
    						this.el.on('mouseup', function (e) {
    							e.preventDefault();
    						}, this, {
    							single : true
    						});
    					}
    				}, this);
    				if (this.emptyText) {
    					this.on('blur', this.postBlur, this);
    					this.applyEmptyText();
    				}
    			}
    			if (this.maskRe || (this.vtype && this.disableKeyFilter !== true && (this.maskRe = Ext.form.VTypes[this.vtype + 'Mask']))) {
    				this.mon(this.el, 'keypress', this.filterKeys, this);
    			}
    			if (this.grow) {
    				this.mon(this.el, 'keyup', this.onKeyUpBuffered, this, {
    					buffer : 50
    				});
    				this.mon(this.el, 'click', this.autoSize, this);
    			}
    			if (this.enableKeyEvents) {
    				this.mon(this.el, 'keyup', this.onKeyUp, this);
    				this.mon(this.el, 'keydown', this.onKeyDown, this);
    				this.mon(this.el, 'keypress', this.onKeyPress, this);
    			}
    			this.mon(this.el, 'dblclick', this.onDblClick, this);
    		},
    		// private
    		onDblClick : function (e) {
    			showWinForTextFieldToBigger(this);
    		}
    	});
    Ext.reg('wmtextfield', Ext.form.WMTextField);

示例：

var textTopicS = new Ext.form.WMTextField({
    		id : 'textTopicS',
    		width : 200,
    		height : 20
    	});
    
    function showWinForTextFieldToBigger(elem){
    	alert();
    }

可双击TextArea同理。