textbox.js

这是一个ajax的例子大家好好的看看就是一个鱼眼的效果

if(!dojo._hasResource["dijit.form.TextBox"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
dojo._hasResource["dijit.form.TextBox"] = true;
dojo.provide("dijit.form.TextBox");

dojo.require("dijit.form._FormWidget");

dojo.declare(
	"dijit.form.TextBox",
	dijit.form._FormValueWidget,
	{
		//	summary:
		//		A base class for textbox form inputs
		//
		//	trim: Boolean
		//		Removes leading and trailing whitespace if true.  Default is false.
		trim: false,

		//	uppercase: Boolean
		//		Converts all characters to uppercase if true.  Default is false.
		uppercase: false,

		//	lowercase: Boolean
		//		Converts all characters to lowercase if true.  Default is false.
		lowercase: false,

		//	propercase: Boolean
		//		Converts the first character of each word to uppercase if true.
		propercase: false,

		//	maxLength: String
		//		HTML INPUT tag maxLength declaration.
		maxLength: "",

		templateString:"<input class=\"dijit dijitReset dijitLeft\" dojoAttachPoint='textbox,focusNode' name=\"${name}\"\n\tdojoAttachEvent='onmouseenter:_onMouse,onmouseleave:_onMouse,onfocus:_onMouse,onblur:_onMouse,onkeypress:_onKeyPress,onkeyup'\n\tautocomplete=\"off\" type=\"${type}\"\n\t/>\n",
		baseClass: "dijitTextBox",

		attributeMap: dojo.mixin(dojo.clone(dijit.form._FormValueWidget.prototype.attributeMap),
			{maxLength:"focusNode"}),

		getDisplayedValue: function(){
			//	summary:
			//		Returns the formatted value that the user sees in the textbox, which may be different
			//		from the serialized value that's actually sent to the server (see dijit.form.ValidationTextBox.serialize)
			return this.filter(this.textbox.value);
		},

		getValue: function(){
			return this.parse(this.getDisplayedValue(), this.constraints);
		},

		setValue: function(value, /*Boolean?*/ priorityChange, /*String?*/ formattedValue){
			//	summary: 
			//		Sets the value of the widget to "value" which can be of
			//		any type as determined by the widget.
			//
			//	value:
			//		The visual element value is also set to a corresponding,
			//		but not necessarily the same, value.
			//
			//	formattedValue:
			//		If specified, used to set the visual element value,
			//		otherwise a computed visual value is used.
			//
			//	priorityChange:
			//		If true, an onChange event is fired immediately instead of 
			//		waiting for the next blur event.

			var filteredValue = this.filter(value);
			if((((typeof filteredValue == typeof value) && (value !== undefined/*#5317*/)) || (value === null/*#5329*/)) && (formattedValue == null || formattedValue == undefined)){
				formattedValue = this.format(filteredValue, this.constraints);
			}
			if(formattedValue != null && formattedValue != undefined){
				this.textbox.value = formattedValue;
			}
			dijit.form.TextBox.superclass.setValue.call(this, filteredValue, priorityChange);
		},

		setDisplayedValue: function(/*String*/value, /*Boolean?*/ priorityChange){
			//	summary: 
			//		Sets the value of the visual element to the string "value".
			//		The widget value is also set to a corresponding,
			//		but not necessarily the same, value.
			//
			//	priorityChange:
			//		If true, an onChange event is fired immediately instead of 
			//		waiting for the next blur event.

			this.textbox.value = value;
			this.setValue(this.getValue(), priorityChange);
		},

		format: function(/* String */ value, /* Object */ constraints){
			//	summary:
			//		Replacable function to convert a value to a properly formatted string
			return ((value == null || value == undefined) ? "" : (value.toString ? value.toString() : value));
		},

		parse: function(/* String */ value, /* Object */ constraints){
			//	summary:
			//		Replacable function to convert a formatted string to a value
			return value;
		},

		postCreate: function(){
			// setting the value here is needed since value="" in the template causes "undefined"
			// and setting in the DOM (instead of the JS object) helps with form reset actions
			this.textbox.setAttribute("value", this.getDisplayedValue());
			this.inherited(arguments);

			/*#5297:if(this.srcNodeRef){
				dojo.style(this.textbox, "cssText", this.style);
				this.textbox.className += " " + this["class"];
			}*/
			this._layoutHack();
		},

		filter: function(val){
			//	summary:
			//		Apply specified filters to textbox value
			if(val === null || val === undefined){ return ""; }
			else if(typeof val != "string"){ return val; }
			if(this.trim){
				val = dojo.trim(val);
			}
			if(this.uppercase){
				val = val.toUpperCase();
			}
			if(this.lowercase){
				val = val.toLowerCase();
			}
			if(this.propercase){
				val = val.replace(/[^\s]+/g, function(word){
					return word.substring(0,1).toUpperCase() + word.substring(1);
				});
			}
			return val;
		},

		_setBlurValue: function(){
			this.setValue(this.getValue(), (this.isValid ? this.isValid() : true));
		},

		_onBlur: function(){
			this._setBlurValue();
			this.inherited(arguments);
		},

		onkeyup: function(){
			//	summary:
			//		User replaceable keyup event handler
		}
	}
);

dijit.selectInputText = function(/*DomNode*/element, /*Number?*/ start, /*Number?*/ stop){
	//	summary:
	//		Select text in the input element argument, from start (default 0), to stop (default end).

	// TODO: use functions in _editor/selection.js?
	var _window = dojo.global;
	var _document = dojo.doc;
	element = dojo.byId(element);
	if(isNaN(start)){ start = 0; }
	if(isNaN(stop)){ stop = element.value ? element.value.length : 0; }
	element.focus();
	if(_document["selection"] && dojo.body()["createTextRange"]){ // IE
		if(element.createTextRange){
			var range = element.createTextRange();
			with(range){
				collapse(true);
				moveStart("character", start);
				moveEnd("character", stop);
				select();
			}
		}
	}else if(_window["getSelection"]){
		var selection = _window.getSelection();
		// FIXME: does this work on Safari?
		if(element.setSelectionRange){
			element.setSelectionRange(start, stop);
		}
	}
}

}