1 /**
2 * This file Copyright (c) 2010-2018 Magnolia International
3 * Ltd. (http://www.magnolia-cms.com). All rights reserved.
4 *
5 *
6 * This file is dual-licensed under both the Magnolia
7 * Network Agreement and the GNU General Public License.
8 * You may elect to use one or the other of these licenses.
9 *
10 * This file is distributed in the hope that it will be
11 * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
12 * implied warranty of MERCHANTABILITY or FITNESS FOR A
13 * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
14 * Redistribution, except as permitted by whichever of the GPL
15 * or MNA you select, is prohibited.
16 *
17 * 1. For the GPL license (GPL), you can redistribute and/or
18 * modify this file under the terms of the GNU General
19 * Public License, Version 3, as published by the Free Software
20 * Foundation. You should have received a copy of the GNU
21 * General Public License, Version 3 along with this program;
22 * if not, write to the Free Software Foundation, Inc., 51
23 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
24 *
25 * 2. For the Magnolia Network Agreement (MNA), this file
26 * and the accompanying materials are made available under the
27 * terms of the MNA which accompanies this distribution, and
28 * is available at http://www.magnolia-cms.com/mna.html
29 *
30 * Any modifications to this file must keep this entire header
31 * intact.
32 *
33 */
34 package info.magnolia.ui.vaadin.gwt.client.layout;
35
36 import com.google.gwt.core.client.JavaScriptObject;
37
38 /**
39 * Utility class for fetching CSS properties from DOM StyleSheets JS object and
40 * for creating new CSS rules dynamically.
41 *
42 * @deprecated since 5.3.10, not needed anymore.
43 */
44 @Deprecated
45 public class CssRule {
46
47 private final String selector;
48 private final JavaScriptObject rules = null;
49
50 private CssRule(final String selector) {
51 this.selector = selector;
52 }
53
54 /**
55 * @param selector the CSS selector to search for in the stylesheets
56 * @param deep should the search follow any @import statements?
57 */
58 public CssRule(final String selector, final boolean deep) {
59 this.selector = selector;
60 fetchRule(selector, deep);
61 }
62
63 private native void fetchRule(final String selector, final boolean deep)
64 /*-{
65 var sheets = $doc.styleSheets;
66 for(var i = 0; i < sheets.length; i++) {
67 var sheet = sheets[i];
68 if(sheet.href && sheet.href.indexOf("VAADIN/themes")>-1) {
69 this.@info.magnolia.ui.vaadin.gwt.client.layout.CssRule::rules = @info.magnolia.ui.vaadin.gwt.client.layout.CssRule::searchForRule(Lcom/google/gwt/core/client/JavaScriptObject;Ljava/lang/String;Z)(sheet, selector, deep);
70 return;
71 }
72 }
73 this.@info.magnolia.ui.vaadin.gwt.client.layout.CssRule::rules = [];
74 }-*/;
75
76 /*
77 * Loops through all current style rules and collects all matching to
78 * 'rules' array. The array is reverse ordered (last one found is first).
79 */
80 private static native JavaScriptObject searchForRule(
81 final JavaScriptObject sheet, final String selector,
82 final boolean deep)
83 /*-{
84 if(!$doc.styleSheets)
85 return null;
86
87 selector = selector.toLowerCase();
88
89 var allMatches = [];
90
91 // IE handles imported sheet differently
92 if(deep && sheet.imports.length > 0) {
93 for(var i=0; i < sheet.imports.length; i++) {
94 var imports = @info.magnolia.ui.vaadin.gwt.client.layout.CssRule::searchForRule(Lcom/google/gwt/core/client/JavaScriptObject;Ljava/lang/String;Z)(sheet.imports[i], selector, deep);
95 allMatches.concat(imports);
96 }
97 }
98
99 var theRules = new Array();
100 if (sheet.cssRules)
101 theRules = sheet.cssRules
102 else if (sheet.rules)
103 theRules = sheet.rules
104
105 var j = theRules.length;
106 for(var i=0; i<j; i++) {
107 var r = theRules[i];
108 if(r.type == 1 || sheet.imports) {
109 var selectors = r.selectorText.toLowerCase().split(",");
110 var n = selectors.length;
111 for(var m=0; m<n; m++) {
112 if(selectors[m].replace(/^\s+|\s+$/g, "") == selector) {
113 allMatches.unshift(r);
114 break; // No need to loop other selectors for this rule
115 }
116 }
117 } else if(deep && r.type == 3) {
118 // Search @import stylesheet
119 var imports = @info.magnolia.ui.vaadin.gwt.client.layout.CssRule::searchForRule(Lcom/google/gwt/core/client/JavaScriptObject;Ljava/lang/String;Z)(r.styleSheet, selector, deep);
120 allMatches.concat(imports);
121 }
122 }
123
124 return allMatches;
125 }-*/;
126
127 /**
128 * Returns a specific property value from this CSS rule.
129 *
130 * @param propertyName camelCase CSS property name
131 * @return the value of the property as a String
132 */
133 public native String getProperty(final String propertyName)
134 /*-{
135 var j = this.@info.magnolia.ui.vaadin.gwt.client.layout.CssRule::rules.length;
136 for(var i=0; i<j; i++){
137 var value = this.@info.magnolia.ui.vaadin.gwt.client.layout.CssRule::rules[i].style[propertyName];
138 if(value)
139 return value;
140 }
141 return null;
142 }-*/;
143
144 /**
145 * Sets a specific property value for this CSS rule.
146 *
147 * @param propertyName camelCase CSS property name
148 * @param propertyValue the value of the property as a String
149 */
150 public native void setProperty(final String propertyName,
151 final String propertyValue)
152 /*-{
153 this.@info.magnolia.ui.vaadin.gwt.client.layout.CssRule::rules[0].style[propertyName] = propertyValue;
154 }-*/;
155
156 public String getSelector() {
157 return selector;
158 }
159
160 public static CssRule create(String selector) {
161 CssRule newRule = new CssRule(selector);
162 createRule(selector, newRule);
163 return newRule;
164 }
165
166 private static native void createRule(final String selector, CssRule rule)
167 /*-{
168 var sheets = $doc.styleSheets;
169 for(var i = 0; i < sheets.length; i++) {
170 var sheet = sheets[i];
171 if(sheet.href && sheet.href.indexOf("VAADIN/themes")>-1) {
172 if(sheet.insertRule) {
173 sheet.insertRule(selector + "{}", sheet.cssRules.length);
174 var r = sheet.cssRules[sheet.cssRules.length-1];
175 } else { // IE
176 sheet.addRule(selector, "foo:bar");
177 var r = sheet.rules[sheet.rules.length-1];
178 }
179 rule.@info.magnolia.ui.vaadin.gwt.client.layout.CssRule::rules = [r];
180 }
181 }
182 }-*/;
183
184 }