ColorPalette.js
资源名称:ext-3.0.0.zip [点击查看]
上传用户:shuoshiled
上传日期:2018-01-28
资源大小:10124k
文件大小:5k
源码类别:
中间件编程
开发平台:
JavaScript
- /*!
- * Ext JS Library 3.0.0
- * 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 = function(config){
- Ext.ColorPalette.superclass.constructor.call(this, config);
- 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);
- }
- };
- Ext.extend(Ext.ColorPalette, 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,
- 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"
- ],
- // 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());
- }
- },
- /**
- * 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);