org.eclipse.jst.pagedesigner/src/org/eclipse/jst/pagedesigner/css2/property/ColorPropertyMeta.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2006 Sybase, Inc. and others.\r
   3  *\r
   4  * All rights reserved. This program and the accompanying materials\r
   5  * are made available under the terms of the Eclipse Public License v1.0\r
   6  * which accompanies this distribution, and is available at\r
   7  * http://www.eclipse.org/legal/epl-v10.html\r
   8  *\r
   9  * Contributors:\r
  10  *     Sybase, Inc. - initial API and implementation\r
  11  *******************************************************************************/\r
  12 package org.eclipse.jst.pagedesigner.css2.property;\r
  13 \r
  14 import java.util.Arrays;\r
  15 \r
  16 import org.eclipse.draw2d.ColorConstants;\r
  17 import org.eclipse.jst.pagedesigner.IHTMLConstants;\r
  18 import org.eclipse.jst.pagedesigner.css2.ICSSStyle;\r
  19 import org.eclipse.jst.pagedesigner.css2.color.CSSColorManager;\r
  20 import org.eclipse.jst.pagedesigner.utils.DOMUtil;\r
  21 import org.w3c.dom.Element;\r
  22 import org.w3c.dom.css.CSSValue;\r
  23 \r
  24 /**\r
  25  * "color" will be in this type\r
  26  * \r
  27  * @author mengbo\r
  28  */\r
  29 public class ColorPropertyMeta extends CSSPropertyMeta {\r
  30         private static final Object DEFAULT_COLOR = ColorConstants.black;\r
  31 \r
  32         private static final String[] KEYWORDS = new String[] {};\r
  33 \r
  34         private final static String[] NOTSUPPORT_TAG = { IHTMLConstants.TAG_H1,\r
  35                         IHTMLConstants.TAG_H2, IHTMLConstants.TAG_H3,\r
  36                         IHTMLConstants.TAG_H4, IHTMLConstants.TAG_H5, IHTMLConstants.TAG_H6 };\r
  37 \r
  38         /**\r
  39          */\r
  40         public ColorPropertyMeta() {\r
  41                 super(true, DEFAULT_COLOR);\r
  42         }\r
  43 \r
  44         /*\r
  45          * (non-Javadoc)\r
  46          * \r
  47          * @see org.eclipse.jst.pagedesigner.css2.property.ICSSPropertyMeta#calculateCSSValueResult(org.w3c.dom.css.CSSValue,\r
  48          *      java.lang.String,\r
  49          *      org.eclipse.jst.pagedesigner.css2.property.AbstractStyle)\r
  50          */\r
  51         public Object calculateCSSValueResult(CSSValue value, String propertyName,\r
  52                         ICSSStyle style) {\r
  53 \r
  54                 String text = value.getCssText();\r
  55                 Object result = CSSColorManager.getInstance().getColor(text);\r
  56                 if (result != null) {\r
  57                         return result;\r
  58                 }\r
  59         return this.getInitialValue(propertyName, style);\r
  60         }\r
  61 \r
  62         /*\r
  63          * (non-Javadoc)\r
  64          * \r
  65          * @see org.eclipse.jst.pagedesigner.css2.property.CSSPropertyMeta#getKeywordValues()\r
  66          */\r
  67         protected String[] getKeywordValues() {\r
  68                 return KEYWORDS;\r
  69         }\r
  70 \r
  71         /*\r
  72          * (non-Javadoc)\r
  73          * \r
  74          * @see org.eclipse.jst.pagedesigner.css2.property.ICSSPropertyMeta#calculateHTMLAttributeOverride(org.w3c.dom.Element,\r
  75          *      java.lang.String, java.lang.String,\r
  76          *      org.eclipse.jst.pagedesigner.css2.ICSSStyle)\r
  77          */\r
  78         public Object calculateHTMLAttributeOverride(Element element,\r
  79                         String htmltag, String propertyName, ICSSStyle style) {\r
  80                 if (Arrays.asList(NOTSUPPORT_TAG).contains(htmltag.toLowerCase())) {\r
  81                         return null;\r
  82                 }\r
  83                 Object result;\r
  84                 String colorAttr = null;\r
  85                 // There are some conditions need to be dealt with hyperlink and text\r
  86                 // properties.\r
  87                 if (ICSSPropertyID.ATTR_COLOR.equalsIgnoreCase(propertyName)) {\r
  88                         colorAttr = DOMUtil.getAttributeIgnoreCase(element,\r
  89                                         ICSSPropertyID.ATTR_COLOR);\r
  90                         if (colorAttr == null\r
  91                                         && element.getLocalName().equalsIgnoreCase(\r
  92                                                         IHTMLConstants.TAG_BODY)) {\r
  93                                 colorAttr = DOMUtil.getAttributeIgnoreCase(element,\r
  94                                                 ICSSPropertyID.ATTR_TEXT);\r
  95                         }\r
  96                 }\r
  97                 if (colorAttr != null) {\r
  98                         colorAttr = colorAttr.trim();\r
  99                         result = CSSColorManager.getInstance().getColor(colorAttr);\r
 100                         return result;\r
 101                 }\r
 102                 return null;\r
 103         }\r
 104 }\r