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<html>
<head>
<title>The source code</title>
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<pre class="prettyprint lang-js">/*!
* Ext JS Library 3.0.3
* Copyright(c) 2006-2009 Ext JS, LLC
* licensing@extjs.com
* http://www.extjs.com/license
*/
<div id="cls-Ext.ColorPalette"></div>/**
* @class Ext.ColorPalette
* @extends Ext.Component
* Simple color palette class for choosing colors. The palette can be rendered to any container.<br />
* Here's an example of typical usage:
* <pre><code>
var cp = new Ext.ColorPalette({value:'993300'}); // initial selected color
cp.render('my-div');
cp.on('select', function(palette, selColor){
// do something with selColor
});
</code></pre>
* @constructor
* Create a new ColorPalette
* @param {Object} config The config object
* @xtype colorpalette
*/
Ext.ColorPalette = function(config){
Ext.ColorPalette.superclass.constructor.call(this, config);
this.addEvents(
<div id="event-Ext.ColorPalette-select"></div>/**
* @event select
* Fires when a color is selected
* @param {ColorPalette} this
* @param {String} color The 6-digit color hex code (without the # symbol)
*/
'select'
);
if(this.handler){
this.on('select', this.handler, this.scope, true);
}
};
Ext.extend(Ext.ColorPalette, Ext.Component, {
<div id="cfg-Ext.ColorPalette-tpl"></div>/**
* @cfg {String} tpl An existing XTemplate instance to be used in place of the default template for rendering the component.
*/
<div id="cfg-Ext.ColorPalette-itemCls"></div>/**
* @cfg {String} itemCls
* The CSS class to apply to the containing element (defaults to 'x-color-palette')
*/
itemCls : 'x-color-palette',
<div id="cfg-Ext.ColorPalette-value"></div>/**
* @cfg {String} value
* The initial color to highlight (should be a valid 6-digit color hex code without the # symbol). Note that
* the hex codes are case-sensitive.
*/
value : null,
clickEvent :'click',
// private
ctype : 'Ext.ColorPalette',
<div id="cfg-Ext.ColorPalette-allowReselect"></div>/**
* @cfg {Boolean} allowReselect If set to true then reselecting a color that is already selected fires the {@link #select} event
*/
allowReselect : false,
<div id="prop-Ext.ColorPalette-colors"></div>/**
* <p>An array of 6-digit color hex code strings (without the # symbol). This array can contain any number
* of colors, and each hex code should be unique. The width of the palette is controlled via CSS by adjusting
* the width property of the 'x-color-palette' class (or assigning a custom class), so you can balance the number
* of colors with the width setting until the box is symmetrical.</p>
* <p>You can override individual colors if needed:</p>
* <pre><code>
var cp = new Ext.ColorPalette();
cp.colors[0] = 'FF0000'; // change the first box to red
</code></pre>
Or you can provide a custom array of your own for complete control:
<pre><code>
var cp = new Ext.ColorPalette();
cp.colors = ['000000', '993300', '333300'];
</code></pre>
* @type Array
*/
colors : [
'000000', '993300', '333300', '003300', '003366', '000080', '333399', '333333',
'800000', 'FF6600', '808000', '008000', '008080', '0000FF', '666699', '808080',
'FF0000', 'FF9900', '99CC00', '339966', '33CCCC', '3366FF', '800080', '969696',
'FF00FF', 'FFCC00', 'FFFF00', '00FF00', '00FFFF', '00CCFF', '993366', 'C0C0C0',
'FF99CC', 'FFCC99', 'FFFF99', 'CCFFCC', 'CCFFFF', '99CCFF', 'CC99FF', 'FFFFFF'
],
<div id="cfg-Ext.ColorPalette-handler"></div>/**
* @cfg {Function} handler
* Optional. A function that will handle the select event of this palette.
* The handler is passed the following parameters:<div class="mdetail-params"><ul>
* <li><code>palette</code> : ColorPalette<div class="sub-desc">The {@link #palette Ext.ColorPalette}.</div></li>
* <li><code>color</code> : String<div class="sub-desc">The 6-digit color hex code (without the # symbol).</div></li>
* </ul></div>
*/
<div id="cfg-Ext.ColorPalette-scope"></div>/**
* @cfg {Object} scope
* The scope (<tt><b>this</b></tt> reference) in which the <code>{@link #handler}</code>
* function will be called. Defaults to this ColorPalette instance.
*/
// private
onRender : function(container, position){
var t = this.tpl || new Ext.XTemplate(
'<tpl for="."><a href="#" class="color-{.}" hidefocus="on"><em><span style="background:#{.}" unselectable="on"> </span></em></a></tpl>'
);
var el = document.createElement('div');
el.id = this.getId();
el.className = this.itemCls;
t.overwrite(el, this.colors);
container.dom.insertBefore(el, position);
this.el = Ext.get(el);
this.mon(this.el, this.clickEvent, this.handleClick, this, {delegate: 'a'});
if(this.clickEvent != 'click'){
this.mon(this.el, 'click', Ext.emptyFn, this, {delegate: 'a', preventDefault: true});
}
},
// private
afterRender : function(){
Ext.ColorPalette.superclass.afterRender.call(this);
if(this.value){
var s = this.value;
this.value = null;
this.select(s);
}
},
// private
handleClick : function(e, t){
e.preventDefault();
if(!this.disabled){
var c = t.className.match(/(?:^|\s)color-(.{6})(?:\s|$)/)[1];
this.select(c.toUpperCase());
}
},
<div id="method-Ext.ColorPalette-select"></div>/**
* Selects the specified color in the palette (fires the {@link #select} event)
* @param {String} color A valid 6-digit color hex code (# will be stripped if included)
*/
select : function(color){
color = color.replace('#', '');
if(color != this.value || this.allowReselect){
var el = this.el;
if(this.value){
el.child('a.color-'+this.value).removeClass('x-color-palette-sel');
}
el.child('a.color-'+color).addClass('x-color-palette-sel');
this.value = color;
this.fireEvent('select', this, color);
}
}
<div id="cfg-Ext.ColorPalette-autoEl"></div>/**
* @cfg {String} autoEl @hide
*/
});
Ext.reg('colorpalette', Ext.ColorPalette);
</pre>
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