001/* 002 * This library is part of OpenCms - 003 * the Open Source Content Management System 004 * 005 * Copyright (c) Alkacon Software GmbH & Co. KG (http://www.alkacon.com) 006 * 007 * This library is free software; you can redistribute it and/or 008 * modify it under the terms of the GNU Lesser General Public 009 * License as published by the Free Software Foundation; either 010 * version 2.1 of the License, or (at your option) any later version. 011 * 012 * This library is distributed in the hope that it will be useful, 013 * but WITHOUT ANY WARRANTY; without even the implied warranty of 014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 015 * Lesser General Public License for more details. 016 * 017 * For further information about Alkacon Software, please see the 018 * company website: http://www.alkacon.com 019 * 020 * For further information about OpenCms, please see the 021 * project website: http://www.opencms.org 022 * 023 * You should have received a copy of the GNU Lesser General Public 024 * License along with this library; if not, write to the Free Software 025 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 026 */ 027 028package org.opencms.gwt.client.util.impl; 029 030import com.google.gwt.dom.client.Element; 031 032/** 033 * Helper class to retrieve the computed style of an element.<p> 034 * 035 * This implementation is used for MSIE 9 browsers.<p> 036 * 037 * @since 8.0.0 038 */ 039public class DocumentStyleImplIE9 extends DocumentStyleImpl { 040 041 /** 042 * Transforms the CSS style name to the name of the javascript style property.<p> 043 * 044 * @param name the name of the CSS property 045 * @return the javascript property name 046 */ 047 @Override 048 public String getPropertyName(String name) { 049 050 if ("float".equals(name)) { 051 return "styleFloat"; 052 } else if ("class".equals(name)) { 053 return "className"; 054 } else if ("for".equals(name)) { 055 return "htmlFor"; 056 } 057 return name; 058 } 059 060 /** 061 * @see org.opencms.gwt.client.util.impl.DocumentStyleImpl#getComputedStyle(com.google.gwt.dom.client.Element, java.lang.String) 062 */ 063 @Override 064 protected native String getComputedStyle(Element elem, String name) /*-{ 065 function getComputed(elem, name) { 066 var style = elem.style; 067 var camelCase = name.replace(/\-(\w)/g, function(all, letter) { 068 return letter.toUpperCase(); 069 }); 070 var ret = ""; 071 if (elem.currentStyle != null) { 072 ret = elem.currentStyle[name] || elem.currentStyle[camelCase]; 073 // From the awesome hack by Dean Edwards 074 // http://erik.eae.net/archives/2007/07/27/18.54.15/#comment-102291 075 // If we're not dealing with a regular pixel number 076 // but a number that has a weird ending, we need to convert it to pixels 077 if (!/^\d+(px)?$/i.test(ret) && /^\d/.test(ret)) { 078 // Remember the original values 079 var left = style.left, rsLeft = elem.runtimeStyle.left; 080 // Put in the new values to get a computed value out 081 elem.runtimeStyle.left = elem.currentStyle.left; 082 style.left = ret || 0; 083 ret = style.pixelLeft + "px"; 084 // Revert the changed values 085 style.left = left; 086 elem.runtimeStyle.left = rsLeft; 087 } 088 } 089 return ret; 090 } 091 092 if (name === "width" || name === "height") { 093 094 var which = name === "width" ? [ "Left", "Right" ] : [ "Top", 095 "Bottom" ]; 096 function getWH() { 097 var val; 098 val = name === "width" ? elem.offsetWidth : elem.offsetHeight; 099 for ( var i = 0; i < which.length; i++) { 100 val -= parseFloat(getComputed(elem, "padding" + which[i])) || 0; 101 val -= parseFloat(getComputed(elem, "border" + which[i] 102 + "Width")) || 0; 103 104 } 105 return Math.max(0, Math.round(val)); 106 } 107 return getWH() + "px"; 108 } 109 110 return "" + getComputed(elem, name); 111 }-*/; 112}