ColorPalette.js
资源名称:ext-3.1.0.zip [点击查看]
上传用户:dawnssy
上传日期:2022-08-06
资源大小:9345k
文件大小:6k
源码类别:
JavaScript
开发平台:
JavaScript
- /*!
- * Ext JS Library 3.1.0
- * Copyright(c) 2006-2009 Ext JS, LLC
- * licensing@extjs.com
- * http://www.extjs.com/license
- */
- /**
- * @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 = Ext.extend(Ext.Component, {
- /**
- * @cfg {String} tpl An existing XTemplate instance to be used in place of the default template for rendering the component.
- */
- /**
- * @cfg {String} itemCls
- * The CSS class to apply to the containing element (defaults to 'x-color-palette')
- */
- itemCls : 'x-color-palette',
- /**
- * @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,
- /**
- * @cfg {String} clickEvent
- * The DOM event that will cause a color to be selected. This can be any valid event name (dblclick, contextmenu).
- * Defaults to <tt>'click'</tt>.
- */
- clickEvent :'click',
- // private
- ctype : 'Ext.ColorPalette',
- /**
- * @cfg {Boolean} allowReselect If set to true then reselecting a color that is already selected fires the {@link #select} event
- */
- allowReselect : false,
- /**
- * <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'
- ],
- /**
- * @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>
- */
- /**
- * @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
- initComponent : function(){
- Ext.ColorPalette.superclass.initComponent.call(this);
- this.addEvents(
- /**
- * @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);
- }
- },
- // private
- onRender : function(container, position){
- this.autoEl = {
- tag: 'div',
- cls: this.itemCls
- };
- Ext.ColorPalette.superclass.onRender.call(this, 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>'
- );
- t.overwrite(this.el, this.colors);
- 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());
- }
- },
- /**
- * 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);
- }
- }
- /**
- * @cfg {String} autoEl @hide
- */
- });
- Ext.reg('colorpalette', Ext.ColorPalette);