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<title>The source code</title>
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<pre class="prettyprint lang-js">/*!
* Ext JS Library 3.4.0
* Copyright(c) 2006-2011 Sencha Inc.
* licensing@sencha.com
* http://www.sencha.com/license
*/
<div id="cls-Ext.form.SliderField"></div>/**
* @class Ext.form.SliderField
* @extends Ext.form.Field
* Wraps a {@link Ext.slider.MultiSlider Slider} so it can be used as a form field.
* @constructor
* Creates a new SliderField
* @param {Object} config Configuration options. Note that you can pass in any slider configuration options, as well as
* as any field configuration options.
* @xtype sliderfield
*/
Ext.form.SliderField = Ext.extend(Ext.form.Field, {
<div id="cfg-Ext.form.SliderField-useTips"></div>/**
* @cfg {Boolean} useTips
* True to use an Ext.slider.Tip to display tips for the value. Defaults to <tt>true</tt>.
*/
useTips : true,
<div id="cfg-Ext.form.SliderField-tipText"></div>/**
* @cfg {Function} tipText
* A function used to display custom text for the slider tip. Defaults to <tt>null</tt>, which will
* use the default on the plugin.
*/
tipText : null,
// private override
actionMode: 'wrap',
/**
* Initialize the component.
* @private
*/
initComponent : function() {
var cfg = Ext.copyTo({
id: this.id + '-slider'
}, this.initialConfig, ['vertical', 'minValue', 'maxValue', 'decimalPrecision', 'keyIncrement', 'increment', 'clickToChange', 'animate']);
// only can use it if it exists.
if (this.useTips) {
var plug = this.tipText ? {getText: this.tipText} : {};
cfg.plugins = [new Ext.slider.Tip(plug)];
}
this.slider = new Ext.Slider(cfg);
Ext.form.SliderField.superclass.initComponent.call(this);
},
/**
* Set up the hidden field
* @param {Object} ct The container to render to.
* @param {Object} position The position in the container to render to.
* @private
*/
onRender : function(ct, position){
this.autoCreate = {
id: this.id,
name: this.name,
type: 'hidden',
tag: 'input'
};
Ext.form.SliderField.superclass.onRender.call(this, ct, position);
this.wrap = this.el.wrap({cls: 'x-form-field-wrap'});
this.resizeEl = this.positionEl = this.wrap;
this.slider.render(this.wrap);
},
/**
* Ensure that the slider size is set automatically when the field resizes.
* @param {Object} w The width
* @param {Object} h The height
* @param {Object} aw The adjusted width
* @param {Object} ah The adjusted height
* @private
*/
onResize : function(w, h, aw, ah){
Ext.form.SliderField.superclass.onResize.call(this, w, h, aw, ah);
this.slider.setSize(w, h);
},
/**
* Initialize any events for this class.
* @private
*/
initEvents : function(){
Ext.form.SliderField.superclass.initEvents.call(this);
this.slider.on('change', this.onChange, this);
},
/**
* Utility method to set the value of the field when the slider changes.
* @param {Object} slider The slider object.
* @param {Object} v The new value.
* @private
*/
onChange : function(slider, v){
this.setValue(v, undefined, true);
},
/**
* Enable the slider when the field is enabled.
* @private
*/
onEnable : function(){
Ext.form.SliderField.superclass.onEnable.call(this);
this.slider.enable();
},
/**
* Disable the slider when the field is disabled.
* @private
*/
onDisable : function(){
Ext.form.SliderField.superclass.onDisable.call(this);
this.slider.disable();
},
/**
* Ensure the slider is destroyed when the field is destroyed.
* @private
*/
beforeDestroy : function(){
Ext.destroy(this.slider);
Ext.form.SliderField.superclass.beforeDestroy.call(this);
},
/**
* If a side icon is shown, do alignment to the slider
* @private
*/
alignErrorIcon : function(){
this.errorIcon.alignTo(this.slider.el, 'tl-tr', [2, 0]);
},
<div id="method-Ext.form.SliderField-setMinValue"></div>/**
* Sets the minimum field value.
* @param {Number} v The new minimum value.
* @return {Ext.form.SliderField} this
*/
setMinValue : function(v){
this.slider.setMinValue(v);
return this;
},
<div id="method-Ext.form.SliderField-setMaxValue"></div>/**
* Sets the maximum field value.
* @param {Number} v The new maximum value.
* @return {Ext.form.SliderField} this
*/
setMaxValue : function(v){
this.slider.setMaxValue(v);
return this;
},
<div id="method-Ext.form.SliderField-setValue"></div>/**
* Sets the value for this field.
* @param {Number} v The new value.
* @param {Boolean} animate (optional) Whether to animate the transition. If not specified, it will default to the animate config.
* @return {Ext.form.SliderField} this
*/
setValue : function(v, animate, /* private */ silent){
// silent is used if the setValue method is invoked by the slider
// which means we don't need to set the value on the slider.
if(!silent){
this.slider.setValue(v, animate);
}
return Ext.form.SliderField.superclass.setValue.call(this, this.slider.getValue());
},
<div id="method-Ext.form.SliderField-getValue"></div>/**
* Gets the current value for this field.
* @return {Number} The current value.
*/
getValue : function(){
return this.slider.getValue();
}
});
Ext.reg('sliderfield', Ext.form.SliderField);</pre>
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