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/hippo/src/main/webapp/ext/src/widgets/ColorPalette.js

http://hdbc.googlecode.com/
JavaScript | 148 lines | 66 code | 8 blank | 74 comment | 10 complexity | 2095b113d4ce04dc2550101ef4545be2 MD5 | raw file
  1/*!
  2 * Ext JS Library 3.0.0
  3 * Copyright(c) 2006-2009 Ext JS, LLC
  4 * licensing@extjs.com
  5 * http://www.extjs.com/license
  6 */
  7/**
  8 * @class Ext.ColorPalette
  9 * @extends Ext.Component
 10 * Simple color palette class for choosing colors.  The palette can be rendered to any container.<br />
 11 * Here's an example of typical usage:
 12 * <pre><code>
 13var cp = new Ext.ColorPalette({value:'993300'});  // initial selected color
 14cp.render('my-div');
 15
 16cp.on('select', function(palette, selColor){
 17    // do something with selColor
 18});
 19</code></pre>
 20 * @constructor
 21 * Create a new ColorPalette
 22 * @param {Object} config The config object
 23 * @xtype colorpalette
 24 */
 25Ext.ColorPalette = function(config){
 26    Ext.ColorPalette.superclass.constructor.call(this, config);
 27    this.addEvents(
 28        /**
 29	     * @event select
 30	     * Fires when a color is selected
 31	     * @param {ColorPalette} this
 32	     * @param {String} color The 6-digit color hex code (without the # symbol)
 33	     */
 34        'select'
 35    );
 36
 37    if(this.handler){
 38        this.on("select", this.handler, this.scope, true);
 39    }
 40};
 41Ext.extend(Ext.ColorPalette, Ext.Component, {
 42	/**
 43	 * @cfg {String} tpl An existing XTemplate instance to be used in place of the default template for rendering the component.
 44	 */
 45    /**
 46     * @cfg {String} itemCls
 47     * The CSS class to apply to the containing element (defaults to "x-color-palette")
 48     */
 49    itemCls : "x-color-palette",
 50    /**
 51     * @cfg {String} value
 52     * The initial color to highlight (should be a valid 6-digit color hex code without the # symbol).  Note that
 53     * the hex codes are case-sensitive.
 54     */
 55    value : null,
 56    clickEvent:'click',
 57    // private
 58    ctype: "Ext.ColorPalette",
 59
 60    /**
 61     * @cfg {Boolean} allowReselect If set to true then reselecting a color that is already selected fires the {@link #select} event
 62     */
 63    allowReselect : false,
 64
 65    /**
 66     * <p>An array of 6-digit color hex code strings (without the # symbol).  This array can contain any number
 67     * of colors, and each hex code should be unique.  The width of the palette is controlled via CSS by adjusting
 68     * the width property of the 'x-color-palette' class (or assigning a custom class), so you can balance the number
 69     * of colors with the width setting until the box is symmetrical.</p>
 70     * <p>You can override individual colors if needed:</p>
 71     * <pre><code>
 72var cp = new Ext.ColorPalette();
 73cp.colors[0] = "FF0000";  // change the first box to red
 74</code></pre>
 75
 76Or you can provide a custom array of your own for complete control:
 77<pre><code>
 78var cp = new Ext.ColorPalette();
 79cp.colors = ["000000", "993300", "333300"];
 80</code></pre>
 81     * @type Array
 82     */
 83    colors : [
 84        "000000", "993300", "333300", "003300", "003366", "000080", "333399", "333333",
 85        "800000", "FF6600", "808000", "008000", "008080", "0000FF", "666699", "808080",
 86        "FF0000", "FF9900", "99CC00", "339966", "33CCCC", "3366FF", "800080", "969696",
 87        "FF00FF", "FFCC00", "FFFF00", "00FF00", "00FFFF", "00CCFF", "993366", "C0C0C0",
 88        "FF99CC", "FFCC99", "FFFF99", "CCFFCC", "CCFFFF", "99CCFF", "CC99FF", "FFFFFF"
 89    ],
 90
 91    // private
 92    onRender : function(container, position){
 93        var t = this.tpl || new Ext.XTemplate(
 94            '<tpl for="."><a href="#" class="color-{.}" hidefocus="on"><em><span style="background:#{.}" unselectable="on">&#160;</span></em></a></tpl>'
 95        );
 96        var el = document.createElement("div");
 97        el.id = this.getId();
 98        el.className = this.itemCls;
 99        t.overwrite(el, this.colors);
100        container.dom.insertBefore(el, position);
101        this.el = Ext.get(el);
102        this.mon(this.el, this.clickEvent, this.handleClick, this, {delegate: 'a'});
103        if(this.clickEvent != 'click'){
104        	this.mon(this.el, 'click', Ext.emptyFn, this, {delegate: 'a', preventDefault: true});
105        }
106    },
107
108    // private
109    afterRender : function(){
110        Ext.ColorPalette.superclass.afterRender.call(this);
111        if(this.value){
112            var s = this.value;
113            this.value = null;
114            this.select(s);
115        }
116    },
117
118    // private
119    handleClick : function(e, t){
120        e.preventDefault();
121        if(!this.disabled){
122            var c = t.className.match(/(?:^|\s)color-(.{6})(?:\s|$)/)[1];
123            this.select(c.toUpperCase());
124        }
125    },
126
127    /**
128     * Selects the specified color in the palette (fires the {@link #select} event)
129     * @param {String} color A valid 6-digit color hex code (# will be stripped if included)
130     */
131    select : function(color){
132        color = color.replace("#", "");
133        if(color != this.value || this.allowReselect){
134            var el = this.el;
135            if(this.value){
136                el.child("a.color-"+this.value).removeClass("x-color-palette-sel");
137            }
138            el.child("a.color-"+color).addClass("x-color-palette-sel");
139            this.value = color;
140            this.fireEvent("select", this, color);
141        }
142    }
143
144    /**
145     * @cfg {String} autoEl @hide
146     */
147});
148Ext.reg('colorpalette', Ext.ColorPalette);