Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
UITool |
|
| 1.25;1,25 |
1 | package org.apache.turbine.services.pull.tools; | |
2 | ||
3 | /* | |
4 | * Licensed to the Apache Software Foundation (ASF) under one | |
5 | * or more contributor license agreements. See the NOTICE file | |
6 | * distributed with this work for additional information | |
7 | * regarding copyright ownership. The ASF licenses this file | |
8 | * to you under the Apache License, Version 2.0 (the | |
9 | * "License"); you may not use this file except in compliance | |
10 | * with the License. You may obtain a copy of the License at | |
11 | * | |
12 | * http://www.apache.org/licenses/LICENSE-2.0 | |
13 | * | |
14 | * Unless required by applicable law or agreed to in writing, | |
15 | * software distributed under the License is distributed on an | |
16 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | |
17 | * KIND, either express or implied. See the License for the | |
18 | * specific language governing permissions and limitations | |
19 | * under the License. | |
20 | */ | |
21 | ||
22 | import org.apache.commons.logging.Log; | |
23 | import org.apache.commons.logging.LogFactory; | |
24 | import org.apache.turbine.om.security.User; | |
25 | import org.apache.turbine.pipeline.PipelineData; | |
26 | import org.apache.turbine.services.pull.ApplicationTool; | |
27 | import org.apache.turbine.services.ui.TurbineUI; | |
28 | import org.apache.turbine.services.ui.UIService; | |
29 | import org.apache.turbine.util.RunData; | |
30 | import org.apache.turbine.util.ServerData; | |
31 | ||
32 | /** | |
33 | * Manages all UI elements for a Turbine Application. Any UI element can be | |
34 | * accessed in any template using the $ui handle (assuming you use the default | |
35 | * PullService configuration). So, for example, you could access the background | |
36 | * color for your pages by using $ui.bgcolor | |
37 | * <p> | |
38 | * This implementation provides a single level of inheritance in that if a | |
39 | * property does not exist in a non-default skin, the value from the default | |
40 | * skin will be used. By only requiring values different to those stored in | |
41 | * the default skin to appear in the non-default skins the amount of memory | |
42 | * consumed in cases where the UserManager instance is used at a non-global | |
43 | * scope will potentially be reduced due to the fact that a shared instance of | |
44 | * the default skin properties can be used. Note that this inheritance only | |
45 | * applies to property values - it does not apply to any images or stylesheets | |
46 | * that may form part of your skins. | |
47 | * <p> | |
48 | * This is an application pull tool for the template system. You should not | |
49 | * use it in a normal application! Within Java code you should use TurbineUI. | |
50 | * <p> | |
51 | * | |
52 | * This is an application pull tool for the template system. You should | |
53 | * <strong>only</strong> use it in a normal application to set the skin | |
54 | * attribute for a user (setSkin(User user, String skin)) and to initialize it | |
55 | * for the user, otherwise use TurbineUI is probably the way to go. | |
56 | * | |
57 | * @author <a href="mailto:jvanzyl@periapt.com">Jason van Zyl</a> | |
58 | * @author <a href="mailto:james_coltman@majorband.co.uk">James Coltman</a> | |
59 | * @author <a href="mailto:hps@intermeta.de">Henning P. Schmiedehausen</a> | |
60 | * @author <a href="mailto:seade@backstagetech.com.au">Scott Eade</a> | |
61 | * @version $Id$ | |
62 | * @see UIService | |
63 | */ | |
64 | 17 | public class UITool implements ApplicationTool |
65 | { | |
66 | /** Logging */ | |
67 | 15 | private static Log log = LogFactory.getLog(UITool.class); |
68 | ||
69 | /** | |
70 | * Attribute name of skinName value in User's temp hashmap. | |
71 | */ | |
72 | 15 | public static final String SKIN_ATTRIBUTE = UITool.class.getName()+ ".skin"; |
73 | ||
74 | /** | |
75 | * The actual skin being used for the webapp. | |
76 | */ | |
77 | private String skinName; | |
78 | ||
79 | /** | |
80 | * Refresh the tool. | |
81 | */ | |
82 | @Override | |
83 | public void refresh() | |
84 | { | |
85 | 10 | TurbineUI.refresh(getSkin()); |
86 | 10 | log.debug("UITool refreshed for skin: " + getSkin()); |
87 | 10 | } |
88 | ||
89 | /** | |
90 | * Provide access to the list of available skin names. | |
91 | * | |
92 | * @return the available skin names. | |
93 | */ | |
94 | public String[] getSkinNames() | |
95 | { | |
96 | 0 | return TurbineUI.getSkinNames(); |
97 | } | |
98 | ||
99 | /** | |
100 | * Get the name of the default skin name for the web application from the | |
101 | * TurbineResources.properties file. If the property is not present the | |
102 | * name of the default skin will be returned. Note that the web application | |
103 | * skin name may be something other than default, in which case its | |
104 | * properties will default to the skin with the name "default". | |
105 | * | |
106 | * @return the name of the default skin for the web application. | |
107 | */ | |
108 | public String getWebappSkinName() | |
109 | { | |
110 | 0 | return TurbineUI.getWebappSkinName(); |
111 | } | |
112 | ||
113 | /** | |
114 | * Retrieve a skin property. If the property is not defined in the current | |
115 | * skin the value for the default skin will be provided. If the current | |
116 | * skin does not exist then the skin configured for the webapp will be used. | |
117 | * If the webapp skin does not exist the default skin will be used. If the | |
118 | * default skin does not exist then <code>null</code> will be returned. | |
119 | * | |
120 | * @param key the key to retrieve from the skin. | |
121 | * @return the value of the property for the named skin (defaulting to the | |
122 | * default skin), the webapp skin, the default skin or <code>null</code>, | |
123 | * depending on whether or not the property or skins exist. | |
124 | */ | |
125 | public String get(String key) | |
126 | { | |
127 | 0 | return TurbineUI.get(getSkin(), key); |
128 | } | |
129 | ||
130 | /** | |
131 | * Retrieve the skin name. | |
132 | * @return the selected skin name | |
133 | */ | |
134 | public String getSkin() | |
135 | { | |
136 | 20 | return skinName; |
137 | } | |
138 | ||
139 | /** | |
140 | * Set the skin name to the skin from the TurbineResources.properties file. | |
141 | * If the property is not present use the "default" skin. | |
142 | */ | |
143 | public void setSkin() | |
144 | { | |
145 | 17 | skinName = TurbineUI.getWebappSkinName(); |
146 | 17 | } |
147 | ||
148 | /** | |
149 | * Set the skin name to the specified skin. | |
150 | * | |
151 | * @param skinName the skin name to use. | |
152 | */ | |
153 | public void setSkin(String skinName) | |
154 | { | |
155 | 0 | this.skinName = skinName; |
156 | 0 | } |
157 | ||
158 | /** | |
159 | * Set the skin name when the tool is configured to be loaded on a | |
160 | * per-request basis. By default it calls getSkin to return the skin | |
161 | * specified in TurbineResources.properties. Developers can write a subclass | |
162 | * of UITool that overrides this method to determine the skin to use based | |
163 | * on information held in the request. | |
164 | * | |
165 | * @param data a RunData instance | |
166 | */ | |
167 | protected void setSkin(RunData data) | |
168 | { | |
169 | 0 | setSkin(); |
170 | 0 | } |
171 | ||
172 | /** | |
173 | * Set the skin name when the tool is configured to be loaded on a | |
174 | * per-session basis. If the user's temp hashmap contains a value in the | |
175 | * attribute specified by the String constant SKIN_ATTRIBUTE then that is | |
176 | * returned. Otherwise it calls getSkin to return the skin specified in | |
177 | * TurbineResources.properties. | |
178 | * | |
179 | * @param user a User instance | |
180 | */ | |
181 | protected void setSkin(User user) | |
182 | { | |
183 | 0 | if (user.getTemp(SKIN_ATTRIBUTE) == null) |
184 | { | |
185 | 0 | setSkin(); |
186 | } | |
187 | else | |
188 | { | |
189 | 0 | setSkin((String) user.getTemp(SKIN_ATTRIBUTE)); |
190 | } | |
191 | 0 | } |
192 | ||
193 | /** | |
194 | * Set the skin name in the user's temp hashmap for the current session. | |
195 | * | |
196 | * @param user a User instance | |
197 | * @param skin the skin name for the session | |
198 | */ | |
199 | public static void setSkin(User user, String skin) | |
200 | { | |
201 | 0 | user.setTemp(SKIN_ATTRIBUTE, skin); |
202 | 0 | } |
203 | ||
204 | /** | |
205 | * Retrieve the URL for an image that is part of the skin. The images are | |
206 | * stored in the WEBAPP/resources/ui/skins/[SKIN]/images directory. | |
207 | * | |
208 | * <p>Use this if for some reason your server name, server scheme, or server | |
209 | * port change on a per request basis. I'm not sure if this would happen in | |
210 | * a load balanced situation. I think in most cases the image(String image) | |
211 | * method would probably be enough, but I'm not absolutely positive. | |
212 | * | |
213 | * @param imageId the id of the image whose URL will be generated. | |
214 | * @param data the RunData to use as the source of the ServerData to use as | |
215 | * the basis for the URL. | |
216 | * @return the image URL | |
217 | */ | |
218 | public String image(String imageId, RunData data) | |
219 | { | |
220 | 0 | return image(imageId, data.getServerData()); |
221 | } | |
222 | ||
223 | /** | |
224 | * Retrieve the URL for an image that is part of the skin. The images are | |
225 | * stored in the WEBAPP/resources/ui/skins/[SKIN]/images directory. | |
226 | * | |
227 | * <p>Use this if for some reason your server name, server scheme, or server | |
228 | * port change on a per request basis. I'm not sure if this would happen in | |
229 | * a load balanced situation. I think in most cases the image(String image) | |
230 | * method would probably be enough, but I'm not absolutely positive. | |
231 | * | |
232 | * @param imageId the id of the image whose URL will be generated. | |
233 | * @param serverData the serverData to use as the basis for the URL. | |
234 | * @return the image URL | |
235 | */ | |
236 | public String image(String imageId, ServerData serverData) | |
237 | { | |
238 | 0 | return TurbineUI.image(getSkin(), imageId, serverData); |
239 | } | |
240 | ||
241 | /** | |
242 | * Retrieve the URL for an image that is part of the skin. The images are | |
243 | * stored in the WEBAPP/resources/ui/skins/[SKIN]/images directory. | |
244 | * | |
245 | * @param imageId the id of the image whose URL will be generated. | |
246 | * @return the image URL | |
247 | */ | |
248 | public String image(String imageId) | |
249 | { | |
250 | 0 | return TurbineUI.image(getSkin(), imageId); |
251 | } | |
252 | ||
253 | /** | |
254 | * Retrieve the URL for the style sheet that is part of the skin. The style | |
255 | * is stored in the WEBAPP/resources/ui/skins/[SKIN] directory with the | |
256 | * filename skin.css | |
257 | * | |
258 | * <p>Use this if for some reason your server name, server scheme, or server | |
259 | * port change on a per request basis. I'm not sure if this would happen in | |
260 | * a load balanced situation. I think in most cases the style() method would | |
261 | * probably be enough, but I'm not absolutely positive. | |
262 | * | |
263 | * @param data the RunData to use as the source of the ServerData to use as | |
264 | * the basis for the URL. | |
265 | * @return the CSS URL | |
266 | */ | |
267 | public String getStylecss(RunData data) | |
268 | { | |
269 | 0 | return getStylecss(data.getServerData()); |
270 | } | |
271 | ||
272 | /** | |
273 | * Retrieve the URL for the style sheet that is part of the skin. The style | |
274 | * is stored in the WEBAPP/resources/ui/skins/[SKIN] directory with the | |
275 | * filename skin.css | |
276 | * | |
277 | * <p>Use this if for some reason your server name, server scheme, or server | |
278 | * port change on a per request basis. I'm not sure if this would happen in | |
279 | * a load balanced situation. I think in most cases the style() method would | |
280 | * probably be enough, but I'm not absolutely positive. | |
281 | * | |
282 | * @param serverData the serverData to use as the basis for the URL. | |
283 | * @return the CSS URL | |
284 | */ | |
285 | public String getStylecss(ServerData serverData) | |
286 | { | |
287 | 0 | return TurbineUI.getStylecss(getSkin(), serverData); |
288 | } | |
289 | ||
290 | /** | |
291 | * Retrieve the URL for the style sheet that is part of the skin. The style | |
292 | * is stored in the WEBAPP/resources/ui/skins/[SKIN] directory with the | |
293 | * filename skin.css | |
294 | * @return the CSS URL | |
295 | */ | |
296 | public String getStylecss() | |
297 | { | |
298 | 0 | return TurbineUI.getStylecss(getSkin()); |
299 | } | |
300 | ||
301 | /** | |
302 | * Retrieve the URL for a given script that is part of the skin. The script | |
303 | * is stored in the WEBAPP/resources/ui/skins/[SKIN] directory. | |
304 | * | |
305 | * <p>Use this if for some reason your server name, server scheme, or server | |
306 | * port change on a per request basis. I'm not sure if this would happen in | |
307 | * a load balanced situation. I think in most cases the image(String image) | |
308 | * method would probably be enough, but I'm not absolutely positive. | |
309 | * | |
310 | * @param filename the name of the script file whose URL will be generated. | |
311 | * @param data the RunDate to use as the source of the ServerData to use as | |
312 | * the basis for the URL. | |
313 | * @return the script URL | |
314 | */ | |
315 | public String getScript(String filename, RunData data) | |
316 | { | |
317 | 0 | return getScript(filename, data.getServerData()); |
318 | } | |
319 | ||
320 | /** | |
321 | * Retrieve the URL for a given script that is part of the skin. The script | |
322 | * is stored in the WEBAPP/resources/ui/skins/[SKIN] directory. | |
323 | * | |
324 | * <p>Use this if for some reason your server name, server scheme, or server | |
325 | * port change on a per request basis. I'm not sure if this would happen in | |
326 | * a load balanced situation. I think in most cases the image(String image) | |
327 | * method would probably be enough, but I'm not absolutely positive. | |
328 | * | |
329 | * @param filename the name of the script file whose URL will be generated. | |
330 | * @param serverData the serverData to use as the basis for the URL. | |
331 | * @return the script URL | |
332 | */ | |
333 | public String getScript(String filename, ServerData serverData) | |
334 | { | |
335 | 0 | return TurbineUI.getScript(getSkin(), filename, serverData); |
336 | } | |
337 | ||
338 | /** | |
339 | * Retrieve the URL for a given script that is part of the skin. The script | |
340 | * is stored in the WEBAPP/resources/ui/skins/[SKIN] directory. | |
341 | * | |
342 | * @param filename the name of the script file whose URL will be generated. | |
343 | * @return the script URL | |
344 | */ | |
345 | public String getScript(String filename) | |
346 | { | |
347 | 0 | return TurbineUI.getScript(getSkin(), filename); |
348 | } | |
349 | ||
350 | /** | |
351 | * Initialize the UITool object. | |
352 | * | |
353 | * @param data This is null, RunData or User depending upon specified tool | |
354 | * scope. | |
355 | */ | |
356 | @Override | |
357 | public void init(Object data) | |
358 | { | |
359 | 17 | if (data == null) |
360 | { | |
361 | 17 | log.debug("UITool scope is global"); |
362 | 17 | setSkin(); |
363 | } | |
364 | 0 | else if (data instanceof RunData) |
365 | { | |
366 | 0 | log.debug("UITool scope is request"); |
367 | 0 | setSkin((RunData) data); |
368 | } | |
369 | 0 | else if (data instanceof PipelineData) |
370 | { | |
371 | 0 | PipelineData pipelineData = (PipelineData) data; |
372 | 0 | RunData runData = (RunData)pipelineData; |
373 | 0 | log.debug("UITool scope is request"); |
374 | 0 | setSkin(runData); |
375 | 0 | } |
376 | 0 | else if (data instanceof User) |
377 | { | |
378 | 0 | log.debug("UITool scope is session"); |
379 | 0 | setSkin((User) data); |
380 | } | |
381 | 17 | } |
382 | ||
383 | } |