001 // Copyright 2010, 2011 The Apache Software Foundation
002 //
003 // Licensed under the Apache License, Version 2.0 (the "License");
004 // you may not use this file except in compliance with the License.
005 // You may obtain a copy of the License at
006 //
007 // http://www.apache.org/licenses/LICENSE-2.0
008 //
009 // Unless required by applicable law or agreed to in writing, software
010 // distributed under the License is distributed on an "AS IS" BASIS,
011 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012 // See the License for the specific language governing permissions and
013 // limitations under the License.
014
015 package org.apache.tapestry5.internal.services.javascript;
016
017 import org.apache.tapestry5.Asset;
018 import org.apache.tapestry5.SymbolConstants;
019 import org.apache.tapestry5.func.F;
020 import org.apache.tapestry5.func.Flow;
021 import org.apache.tapestry5.internal.TapestryInternalUtils;
022 import org.apache.tapestry5.ioc.annotations.Symbol;
023 import org.apache.tapestry5.ioc.internal.util.CollectionFactory;
024 import org.apache.tapestry5.ioc.services.SymbolSource;
025 import org.apache.tapestry5.ioc.services.ThreadLocale;
026 import org.apache.tapestry5.services.AssetSource;
027 import org.apache.tapestry5.services.javascript.JavaScriptStack;
028 import org.apache.tapestry5.services.javascript.StylesheetLink;
029
030 import java.util.Collections;
031 import java.util.List;
032 import java.util.Locale;
033
034 /**
035 * JavaScriptStack for core components.
036 *
037 * @since 5.2.0
038 */
039 public class CoreJavaScriptStack implements JavaScriptStack {
040 private final boolean productionMode;
041
042 private final SymbolSource symbolSource;
043
044 private final AssetSource assetSource;
045
046 private final ThreadLocale threadLocale;
047
048 private final List<Asset> javaScriptStack, stylesheetStack;
049
050 private static final String ROOT = "org/apache/tapestry5";
051
052 private static final String[] CORE_JAVASCRIPT = new String[]
053 {
054 // Core scripts added to any page that uses scripting
055
056 "${tapestry.underscore}",
057
058 "${tapestry.scriptaculous}/prototype.js",
059
060 "${tapestry.scriptaculous}/scriptaculous.js",
061
062 "${tapestry.scriptaculous}/effects.js",
063
064 // Below uses functions defined by the prior three.
065
066 // Order is important, there are some dependencies
067 // going on here. Switching over to a more managed module system
068 // is starting to look like a really nice idea!
069
070 ROOT + "/t5-core.js",
071
072 ROOT + "/t5-spi.js",
073
074 ROOT + "/t5-prototype.js",
075
076 ROOT + "/t5-init.js",
077
078 ROOT + "/t5-pubsub.js",
079
080 ROOT + "/t5-events.js",
081
082 ROOT + "/t5-dom.js",
083
084 ROOT + "/t5-console.js",
085
086 ROOT + "/t5-ajax.js",
087
088 ROOT + "/t5-formfragment.js",
089
090 ROOT + "/t5-alerts.js",
091
092 ROOT + "/tapestry.js",
093
094 ROOT + "/tapestry-console.js",
095
096 ROOT + "/tree.js",
097 };
098
099 // Because of changes to the logic of how stylesheets get incorporated, the default stylesheet
100 // was removed, the logic for it is now in TapestryModule.contributeMarkupRenderer().
101
102 private static final String[] CORE_STYLESHEET = new String[]
103 {
104 ROOT + "/tapestry-console.css",
105
106 ROOT + "/t5-alerts.css",
107
108 ROOT + "/tree.css"
109 };
110
111 public CoreJavaScriptStack(
112 @Symbol(SymbolConstants.PRODUCTION_MODE)
113 boolean productionMode,
114
115 SymbolSource symbolSource,
116
117 AssetSource assetSource,
118
119 ThreadLocale threadLocale) {
120 this.symbolSource = symbolSource;
121 this.productionMode = productionMode;
122 this.assetSource = assetSource;
123 this.threadLocale = threadLocale;
124
125 javaScriptStack = convertToAssets(CORE_JAVASCRIPT);
126 stylesheetStack = convertToAssets(CORE_STYLESHEET);
127 }
128
129 public String getInitialization() {
130 return productionMode ? null : "Tapestry.DEBUG_ENABLED = true;";
131 }
132
133 public List<String> getStacks() {
134 return Collections.emptyList();
135 }
136
137 private List<Asset> convertToAssets(String[] paths) {
138 List<Asset> assets = CollectionFactory.newList();
139
140 for (String path : paths) {
141 assets.add(expand(path, null));
142 }
143
144 return Collections.unmodifiableList(assets);
145 }
146
147 private Asset expand(String path, Locale locale) {
148 String expanded = symbolSource.expandSymbols(path);
149
150 return assetSource.getAsset(null, expanded, locale);
151 }
152
153 public List<Asset> getJavaScriptLibraries() {
154 Asset messages = assetSource.getAsset(null, ROOT + "/tapestry-messages.js", threadLocale.getLocale());
155
156 return createStack(javaScriptStack, messages).toList();
157 }
158
159 public List<StylesheetLink> getStylesheets() {
160 return createStack(stylesheetStack).map(TapestryInternalUtils.assetToStylesheetLink)
161 .toList();
162 }
163
164 private Flow<Asset> createStack(List<Asset> stack, Asset... assets) {
165 return F.flow(stack).append(assets);
166 }
167 }