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package org.apache.tapestry.services.impl; |
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import org.apache.commons.logging.Log; |
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import org.apache.commons.logging.LogFactory; |
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import org.apache.hivemind.Resource; |
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import org.apache.hivemind.util.Defense; |
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import org.apache.tapestry.*; |
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import org.apache.tapestry.asset.AssetFactory; |
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import org.apache.tapestry.engine.IEngineService; |
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import org.apache.tapestry.engine.NullWriter; |
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import org.apache.tapestry.markup.MarkupWriterSource; |
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import org.apache.tapestry.markup.NestedMarkupWriterImpl; |
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import org.apache.tapestry.services.RequestLocaleManager; |
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import org.apache.tapestry.services.ResponseBuilder; |
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import org.apache.tapestry.services.ServiceConstants; |
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import org.apache.tapestry.util.ContentType; |
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import org.apache.tapestry.util.PageRenderSupportImpl; |
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import org.apache.tapestry.util.ScriptUtils; |
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import org.apache.tapestry.web.WebResponse; |
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import java.io.IOException; |
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import java.io.PrintWriter; |
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import java.util.*; |
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public class DojoAjaxResponseBuilder implements ResponseBuilder |
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{ |
48 | 0 | private static final Log _log = LogFactory.getLog(DojoAjaxResponseBuilder.class); |
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|
50 | 0 | private static final String NEWLINE = System.getProperty("line.separator"); |
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|
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private final AssetFactory _assetFactory; |
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private final String _namespace; |
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|
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private PageRenderSupportImpl _prs; |
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private RequestLocaleManager _localeManager; |
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private MarkupWriterSource _markupWriterSource; |
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private WebResponse _response; |
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|
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private List _errorPages; |
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private ContentType _contentType; |
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private IMarkupWriter _writer; |
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|
70 | 0 | private List _parts = new ArrayList(); |
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|
72 | 0 | private Map _writers = new HashMap(); |
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private List _statusMessages; |
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private IRequestCycle _cycle; |
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private IEngineService _pageService; |
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84 | 0 | private boolean _pageRender = false; |
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90 | 0 | private boolean _responseStarted = false; |
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public DojoAjaxResponseBuilder(IRequestCycle cycle, IMarkupWriter writer, List parts, List errorPages) |
107 | 0 | { |
108 | 0 | Defense.notNull(cycle, "cycle"); |
109 | 0 | Defense.notNull(writer, "writer"); |
110 | |
|
111 | 0 | _writer = writer; |
112 | 0 | _cycle = cycle; |
113 | |
|
114 | 0 | if (parts != null) |
115 | 0 | _parts.addAll(parts); |
116 | |
|
117 | 0 | _namespace = null; |
118 | 0 | _assetFactory = null; |
119 | 0 | _errorPages = errorPages; |
120 | 0 | } |
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public DojoAjaxResponseBuilder(IRequestCycle cycle, IMarkupWriter writer, List parts) |
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{ |
136 | 0 | this(cycle, writer, parts, null); |
137 | 0 | } |
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public DojoAjaxResponseBuilder(IRequestCycle cycle, |
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RequestLocaleManager localeManager, |
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MarkupWriterSource markupWriterSource, |
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WebResponse webResponse, List errorPages, |
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AssetFactory assetFactory, String namespace, IEngineService pageService) |
165 | 0 | { |
166 | 0 | Defense.notNull(cycle, "cycle"); |
167 | 0 | Defense.notNull(assetFactory, "assetService"); |
168 | |
|
169 | 0 | _cycle = cycle; |
170 | 0 | _localeManager = localeManager; |
171 | 0 | _markupWriterSource = markupWriterSource; |
172 | 0 | _response = webResponse; |
173 | 0 | _errorPages = errorPages; |
174 | 0 | _pageService = pageService; |
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|
178 | 0 | _assetFactory = assetFactory; |
179 | 0 | _namespace = namespace; |
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|
181 | 0 | _prs = new PageRenderSupportImpl(_assetFactory, _namespace, this, cycle); |
182 | 0 | } |
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public boolean isDynamic() |
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{ |
190 | 0 | return true; |
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} |
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public void renderResponse(IRequestCycle cycle) |
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throws IOException |
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{ |
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|
201 | 0 | if (_responseStarted) |
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{ |
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|
204 | 0 | clearPartialWriters(); |
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|
206 | 0 | cycle.renderPage(this); |
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|
208 | 0 | TapestryUtils.removePageRenderSupport(cycle); |
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|
210 | 0 | endResponse(); |
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|
212 | 0 | _writer.close(); |
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|
214 | 0 | return; |
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} |
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|
217 | 0 | _localeManager.persistLocale(); |
218 | 0 | _contentType = new ContentType(CONTENT_TYPE + ";charset=" + cycle.getInfrastructure().getOutputEncoding()); |
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|
220 | 0 | String encoding = _contentType.getParameter(ENCODING_KEY); |
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|
222 | 0 | if (encoding == null) |
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{ |
224 | 0 | encoding = cycle.getEngine().getOutputEncoding(); |
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|
226 | 0 | _contentType.setParameter(ENCODING_KEY, encoding); |
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} |
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|
229 | 0 | if (_writer == null) |
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{ |
231 | 0 | parseParameters(cycle); |
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|
233 | 0 | PrintWriter printWriter = _response.getPrintWriter(_contentType); |
234 | 0 | _writer = _markupWriterSource.newMarkupWriter(printWriter, _contentType); |
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} |
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|
239 | 0 | TapestryUtils.storePageRenderSupport(cycle, _prs); |
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|
241 | 0 | cycle.renderPage(this); |
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|
243 | 0 | TapestryUtils.removePageRenderSupport(cycle); |
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|
245 | 0 | endResponse(); |
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|
247 | 0 | _writer.close(); |
248 | 0 | } |
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|
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public void flush() |
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throws IOException |
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{ |
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|
256 | 0 | _writer.flush(); |
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|
258 | 0 | if (!_responseStarted) |
259 | 0 | beginResponse(); |
260 | 0 | } |
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public void updateComponent(String id) |
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{ |
267 | 0 | if (!_parts.contains(id)) |
268 | 0 | _parts.add(id); |
269 | 0 | } |
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public IMarkupWriter getWriter() |
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{ |
276 | 0 | return _writer; |
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} |
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void setWriter(IMarkupWriter writer) |
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{ |
281 | 0 | _writer = writer; |
282 | 0 | } |
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public boolean isBodyScriptAllowed(IComponent target) |
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{ |
289 | 0 | if (_pageRender) |
290 | 0 | return true; |
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|
292 | 0 | if (target != null |
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&& IPage.class.isInstance(target) |
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|| (IForm.class.isInstance(target) |
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&& ((IForm)target).isFormFieldUpdating())) |
296 | 0 | return true; |
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|
298 | 0 | return contains(target); |
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} |
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public boolean isExternalScriptAllowed(IComponent target) |
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{ |
306 | 0 | if (_pageRender) |
307 | 0 | return true; |
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|
309 | 0 | if (target != null |
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&& IPage.class.isInstance(target) |
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|| (IForm.class.isInstance(target) |
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&& ((IForm)target).isFormFieldUpdating())) |
313 | 0 | return true; |
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|
315 | 0 | return contains(target); |
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} |
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public boolean isInitializationScriptAllowed(IComponent target) |
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{ |
323 | 0 | if (_log.isDebugEnabled()) |
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{ |
325 | 0 | _log.debug("isInitializationScriptAllowed(" + target + ") contains?: " + contains(target) + " _pageRender: " + _pageRender); |
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} |
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|
328 | 0 | if (_pageRender) |
329 | 0 | return true; |
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|
331 | 0 | if (target != null |
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&& IPage.class.isInstance(target) |
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|| (IForm.class.isInstance(target) |
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&& ((IForm)target).isFormFieldUpdating())) |
335 | 0 | return true; |
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|
337 | 0 | return contains(target); |
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} |
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public boolean isImageInitializationAllowed(IComponent target) |
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{ |
345 | 0 | if (_pageRender) |
346 | 0 | return true; |
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|
348 | 0 | if (target != null |
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&& IPage.class.isInstance(target) |
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|| (IForm.class.isInstance(target) |
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&& ((IForm)target).isFormFieldUpdating())) |
352 | 0 | return true; |
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|
354 | 0 | return contains(target); |
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} |
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public String getPreloadedImageReference(IComponent target, IAsset source) |
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{ |
362 | 0 | return _prs.getPreloadedImageReference(target, source); |
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} |
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public String getPreloadedImageReference(IComponent target, String url) |
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{ |
370 | 0 | return _prs.getPreloadedImageReference(target, url); |
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} |
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public String getPreloadedImageReference(String url) |
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{ |
378 | 0 | return _prs.getPreloadedImageReference(url); |
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} |
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public void addBodyScript(IComponent target, String script) |
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{ |
386 | 0 | _prs.addBodyScript(target, script); |
387 | 0 | } |
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public void addBodyScript(String script) |
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{ |
394 | 0 | _prs.addBodyScript(script); |
395 | 0 | } |
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public void addExternalScript(IComponent target, Resource resource) |
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{ |
402 | 0 | _prs.addExternalScript(target, resource); |
403 | 0 | } |
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public void addExternalScript(Resource resource) |
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{ |
410 | 0 | _prs.addExternalScript(resource); |
411 | 0 | } |
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public void addInitializationScript(IComponent target, String script) |
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{ |
418 | 0 | _prs.addInitializationScript(target, script); |
419 | 0 | } |
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public void addInitializationScript(String script) |
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{ |
426 | 0 | _prs.addInitializationScript(script); |
427 | 0 | } |
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public void addScriptAfterInitialization(IComponent target, String script) |
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{ |
431 | 0 | _prs.addScriptAfterInitialization(target, script); |
432 | 0 | } |
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public String getUniqueString(String baseValue) |
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{ |
439 | 0 | return _prs.getUniqueString(baseValue); |
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} |
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public void writeBodyScript(IMarkupWriter writer, IRequestCycle cycle) |
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{ |
447 | 0 | _prs.writeBodyScript(writer, cycle); |
448 | 0 | } |
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public void writeInitializationScript(IMarkupWriter writer) |
454 | |
{ |
455 | 0 | _prs.writeInitializationScript(writer); |
456 | 0 | } |
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public void beginBodyScript(IMarkupWriter normalWriter, IRequestCycle cycle) |
462 | |
{ |
463 | 0 | IMarkupWriter writer = getWriter(ResponseBuilder.BODY_SCRIPT, ResponseBuilder.SCRIPT_TYPE); |
464 | |
|
465 | 0 | writer.begin("script"); |
466 | 0 | writer.printRaw(NEWLINE + "//<![CDATA[" + NEWLINE); |
467 | 0 | } |
468 | |
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472 | |
public void endBodyScript(IMarkupWriter normalWriter, IRequestCycle cycle) |
473 | |
{ |
474 | 0 | IMarkupWriter writer = getWriter(ResponseBuilder.BODY_SCRIPT, ResponseBuilder.SCRIPT_TYPE); |
475 | |
|
476 | 0 | writer.printRaw(NEWLINE + "//]]>" + NEWLINE); |
477 | 0 | writer.end(); |
478 | 0 | } |
479 | |
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480 | |
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481 | |
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482 | |
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483 | |
public void writeBodyScript(IMarkupWriter normalWriter, String script, IRequestCycle cycle) |
484 | |
{ |
485 | 0 | IMarkupWriter writer = getWriter(ResponseBuilder.BODY_SCRIPT, ResponseBuilder.SCRIPT_TYPE); |
486 | |
|
487 | 0 | writer.printRaw(script); |
488 | 0 | } |
489 | |
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490 | |
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491 | |
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492 | |
|
493 | |
public void writeExternalScript(IMarkupWriter normalWriter, String url, IRequestCycle cycle) |
494 | |
{ |
495 | 0 | IMarkupWriter writer = getWriter(ResponseBuilder.INCLUDE_SCRIPT, ResponseBuilder.SCRIPT_TYPE); |
496 | |
|
497 | |
|
498 | 0 | writer.beginEmpty("include"); |
499 | 0 | writer.attribute("url", url); |
500 | 0 | } |
501 | |
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502 | |
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503 | |
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504 | |
|
505 | |
public void writeImageInitializations(IMarkupWriter normalWriter, String script, String preloadName, IRequestCycle cycle) |
506 | |
{ |
507 | 0 | IMarkupWriter writer = getWriter(ResponseBuilder.BODY_SCRIPT, ResponseBuilder.SCRIPT_TYPE); |
508 | |
|
509 | 0 | writer.printRaw(NEWLINE + preloadName + " = [];" + NEWLINE); |
510 | 0 | writer.printRaw("if (document.images) {" + NEWLINE); |
511 | |
|
512 | 0 | writer.printRaw(script); |
513 | |
|
514 | 0 | writer.printRaw("}" + NEWLINE); |
515 | 0 | } |
516 | |
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517 | |
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518 | |
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519 | |
|
520 | |
public void writeInitializationScript(IMarkupWriter normalWriter, String script) |
521 | |
{ |
522 | 0 | IMarkupWriter writer = getWriter(ResponseBuilder.INITIALIZATION_SCRIPT, ResponseBuilder.SCRIPT_TYPE); |
523 | |
|
524 | 0 | writer.begin("script"); |
525 | |
|
526 | |
|
527 | 0 | writer.printRaw(NEWLINE + "//<![CDATA[" + NEWLINE); |
528 | |
|
529 | 0 | writer.printRaw(script); |
530 | |
|
531 | 0 | writer.printRaw(NEWLINE + "//]]>" + NEWLINE); |
532 | |
|
533 | 0 | writer.end(); |
534 | 0 | } |
535 | |
|
536 | |
public void addStatus(IMarkupWriter normalWriter, String text) |
537 | |
{ |
538 | 0 | addStatusMessage(normalWriter, "info", text); |
539 | 0 | } |
540 | |
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541 | |
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556 | |
public void addStatusMessage(IMarkupWriter normalWriter, String category, String text) |
557 | |
{ |
558 | 0 | if (_statusMessages==null) |
559 | |
{ |
560 | 0 | _statusMessages = new ArrayList(); |
561 | |
} |
562 | |
|
563 | 0 | _statusMessages.add(category); |
564 | 0 | _statusMessages.add(text); |
565 | 0 | } |
566 | |
|
567 | |
void writeStatusMessages() { |
568 | |
|
569 | 0 | for (int i=0; i < _statusMessages.size(); i+=2) |
570 | |
{ |
571 | 0 | IMarkupWriter writer = getWriter((String) _statusMessages.get(i), "status"); |
572 | |
|
573 | 0 | writer.printRaw((String) _statusMessages.get(i+1)); |
574 | |
} |
575 | |
|
576 | 0 | _statusMessages = null; |
577 | 0 | } |
578 | |
|
579 | |
|
580 | |
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581 | |
|
582 | |
public void render(IMarkupWriter writer, IRender render, IRequestCycle cycle) |
583 | |
{ |
584 | |
|
585 | |
|
586 | 0 | if (NestedMarkupWriterImpl.class.isInstance(writer) && !NullWriter.class.isInstance(writer)) |
587 | |
{ |
588 | 0 | render.render(writer, cycle); |
589 | 0 | return; |
590 | |
} |
591 | |
|
592 | |
|
593 | |
|
594 | 0 | if (IPage.class.isInstance(render)) |
595 | |
{ |
596 | 0 | IPage page = (IPage)render; |
597 | 0 | String errorPage = getErrorPage(page.getPageName()); |
598 | |
|
599 | 0 | if (errorPage != null) |
600 | |
{ |
601 | 0 | _pageRender = true; |
602 | |
|
603 | 0 | clearPartialWriters(); |
604 | 0 | render.render(getWriter(errorPage, EXCEPTION_TYPE), cycle); |
605 | 0 | return; |
606 | |
} |
607 | |
|
608 | |
|
609 | |
|
610 | |
|
611 | |
|
612 | 0 | if (_cycle.getParameter(ServiceConstants.PAGE) != null |
613 | |
&& !page.getPageName().equals(_cycle.getParameter(ServiceConstants.PAGE))) |
614 | |
{ |
615 | 0 | IMarkupWriter urlwriter = _writer.getNestedWriter(); |
616 | |
|
617 | 0 | urlwriter.begin("response"); |
618 | 0 | urlwriter.attribute("type", PAGE_TYPE); |
619 | 0 | urlwriter.attribute("url", _pageService.getLink(true, page.getPageName()).getAbsoluteURL()); |
620 | |
|
621 | 0 | _writers.put(PAGE_TYPE, urlwriter); |
622 | 0 | return; |
623 | |
} |
624 | |
} |
625 | |
|
626 | 0 | if (IComponent.class.isInstance(render) |
627 | |
&& contains((IComponent)render, ((IComponent)render).peekClientId())) |
628 | |
{ |
629 | 0 | render.render(getComponentWriter( ((IComponent)render).peekClientId() ), cycle); |
630 | 0 | return; |
631 | |
} |
632 | |
|
633 | |
|
634 | |
|
635 | 0 | render.render(NullWriter.getSharedInstance(), cycle); |
636 | 0 | } |
637 | |
|
638 | |
private String getErrorPage(String pageName) |
639 | |
{ |
640 | 0 | for (int i=0; i < _errorPages.size(); i++) |
641 | |
{ |
642 | 0 | String page = (String)_errorPages.get(i); |
643 | |
|
644 | 0 | if (pageName.indexOf(page) > -1) |
645 | 0 | return page; |
646 | |
} |
647 | |
|
648 | 0 | return null; |
649 | |
} |
650 | |
|
651 | |
IMarkupWriter getComponentWriter(String id) |
652 | |
{ |
653 | 0 | return getWriter(id, ELEMENT_TYPE); |
654 | |
} |
655 | |
|
656 | |
|
657 | |
|
658 | |
|
659 | |
|
660 | |
public IMarkupWriter getWriter(String id, String type) |
661 | |
{ |
662 | 0 | Defense.notNull(id, "id can't be null"); |
663 | |
|
664 | 0 | if (!_responseStarted) |
665 | 0 | beginResponse(); |
666 | |
|
667 | 0 | IMarkupWriter w = (IMarkupWriter)_writers.get(id); |
668 | 0 | if (w != null) |
669 | 0 | return w; |
670 | |
|
671 | |
|
672 | |
|
673 | |
|
674 | |
|
675 | |
|
676 | 0 | IMarkupWriter nestedWriter = _writer.getNestedWriter(); |
677 | 0 | nestedWriter.begin("response"); |
678 | 0 | nestedWriter.attribute("id", id); |
679 | 0 | if (type != null) |
680 | 0 | nestedWriter.attribute("type", type); |
681 | |
|
682 | 0 | _writers.put(id, nestedWriter); |
683 | |
|
684 | 0 | return nestedWriter; |
685 | |
} |
686 | |
|
687 | |
|
688 | |
|
689 | |
|
690 | |
|
691 | |
|
692 | |
void beginResponse() |
693 | |
{ |
694 | 0 | _responseStarted = true; |
695 | |
|
696 | 0 | _writer.printRaw("<?xml version=\"1.0\" encoding=\"" + _cycle.getInfrastructure().getOutputEncoding() + "\"?>"); |
697 | 0 | _writer.printRaw("<!DOCTYPE html " |
698 | |
+ "PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\" " |
699 | |
+ "\"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\" [" + NEWLINE |
700 | |
+ "<!ENTITY nbsp ' '>" + NEWLINE |
701 | |
+ "]>" + NEWLINE); |
702 | |
|
703 | 0 | _writer.printRaw("<ajax-response>"); |
704 | 0 | } |
705 | |
|
706 | |
|
707 | |
|
708 | |
|
709 | |
|
710 | |
void clearPartialWriters() |
711 | |
{ |
712 | 0 | _writers.clear(); |
713 | 0 | } |
714 | |
|
715 | |
|
716 | |
|
717 | |
|
718 | |
|
719 | |
|
720 | |
void endResponse() |
721 | |
{ |
722 | 0 | if (!_responseStarted) |
723 | |
{ |
724 | 0 | beginResponse(); |
725 | |
} |
726 | |
|
727 | |
|
728 | |
|
729 | 0 | if (_statusMessages != null) |
730 | 0 | writeStatusMessages(); |
731 | |
|
732 | 0 | Iterator keys = _writers.keySet().iterator(); |
733 | |
String buffer; |
734 | |
|
735 | 0 | while (keys.hasNext()) |
736 | |
{ |
737 | 0 | String key = (String)keys.next(); |
738 | 0 | NestedMarkupWriter nw = (NestedMarkupWriter)_writers.get(key); |
739 | |
|
740 | 0 | buffer = nw.getBuffer(); |
741 | |
|
742 | 0 | if (_log.isDebugEnabled()) |
743 | |
{ |
744 | 0 | _log.debug("Ajax markup buffer for key <" + key + " contains: " + buffer); |
745 | |
} |
746 | |
|
747 | 0 | if (!isScriptWriter(key)) |
748 | 0 | _writer.printRaw(ScriptUtils.ensureValidScriptTags(buffer)); |
749 | |
else |
750 | 0 | _writer.printRaw(buffer); |
751 | 0 | } |
752 | |
|
753 | |
|
754 | |
|
755 | 0 | _writer.printRaw("</ajax-response>"); |
756 | 0 | _writer.flush(); |
757 | 0 | } |
758 | |
|
759 | |
|
760 | |
|
761 | |
|
762 | |
|
763 | |
|
764 | |
|
765 | |
|
766 | |
|
767 | |
|
768 | |
boolean isScriptWriter(String key) |
769 | |
{ |
770 | 0 | if (key == null) |
771 | 0 | return false; |
772 | |
|
773 | 0 | if (ResponseBuilder.BODY_SCRIPT.equals(key) |
774 | |
|| ResponseBuilder.INCLUDE_SCRIPT.equals(key) |
775 | |
|| ResponseBuilder.INITIALIZATION_SCRIPT.equals(key)) |
776 | 0 | return true; |
777 | |
|
778 | 0 | return false; |
779 | |
} |
780 | |
|
781 | |
|
782 | |
|
783 | |
|
784 | |
|
785 | |
|
786 | |
|
787 | |
|
788 | |
void parseParameters(IRequestCycle cycle) |
789 | |
{ |
790 | 0 | Object[] updateParts = cycle.getParameters(ServiceConstants.UPDATE_PARTS); |
791 | |
|
792 | 0 | if (updateParts == null) |
793 | 0 | return; |
794 | |
|
795 | 0 | for(int i = 0; i < updateParts.length; i++) |
796 | 0 | _parts.add(updateParts[i].toString()); |
797 | 0 | } |
798 | |
|
799 | |
|
800 | |
|
801 | |
|
802 | |
|
803 | |
|
804 | |
|
805 | |
|
806 | |
public boolean contains(IComponent target) |
807 | |
{ |
808 | 0 | if (target == null) |
809 | 0 | return false; |
810 | |
|
811 | 0 | String id = target.getClientId(); |
812 | |
|
813 | 0 | return contains(target, id); |
814 | |
} |
815 | |
|
816 | |
boolean contains(IComponent target, String id) |
817 | |
{ |
818 | 0 | if (_parts.contains(id)) |
819 | 0 | return true; |
820 | |
|
821 | 0 | Iterator it = _cycle.renderStackIterator(); |
822 | 0 | while (it.hasNext()) |
823 | |
{ |
824 | 0 | IComponent comp = (IComponent)it.next(); |
825 | 0 | String compId = comp.getClientId(); |
826 | |
|
827 | 0 | if (comp != target && _parts.contains(compId)) |
828 | 0 | return true; |
829 | 0 | } |
830 | |
|
831 | 0 | return false; |
832 | |
} |
833 | |
|
834 | |
|
835 | |
|
836 | |
|
837 | |
public boolean explicitlyContains(IComponent target) |
838 | |
{ |
839 | 0 | if (target == null) |
840 | 0 | return false; |
841 | |
|
842 | 0 | return _parts.contains(target.getId()); |
843 | |
} |
844 | |
} |