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Diffstat (limited to 'bundles/org.eclipse.jst.jsp.core/src/org/eclipse/jst/jsp/core/internal/document/PageDirectiveAdapterImpl.java')
| -rw-r--r-- | bundles/org.eclipse.jst.jsp.core/src/org/eclipse/jst/jsp/core/internal/document/PageDirectiveAdapterImpl.java | 613 |
1 files changed, 0 insertions, 613 deletions
diff --git a/bundles/org.eclipse.jst.jsp.core/src/org/eclipse/jst/jsp/core/internal/document/PageDirectiveAdapterImpl.java b/bundles/org.eclipse.jst.jsp.core/src/org/eclipse/jst/jsp/core/internal/document/PageDirectiveAdapterImpl.java deleted file mode 100644 index b388c1aee9..0000000000 --- a/bundles/org.eclipse.jst.jsp.core/src/org/eclipse/jst/jsp/core/internal/document/PageDirectiveAdapterImpl.java +++ /dev/null @@ -1,613 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2004 IBM Corporation and others. - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Eclipse Public License v1.0 - * which accompanies this distribution, and is available at - * http://www.eclipse.org/legal/epl-v10.html - * - * Contributors: - * IBM Corporation - initial API and implementation - *******************************************************************************/ -package org.eclipse.jst.jsp.core.internal.document; - -import java.util.ArrayList; -import java.util.Iterator; -import java.util.List; -import java.util.StringTokenizer; - -import org.eclipse.core.resources.IFile; -import org.eclipse.core.resources.IProject; -import org.eclipse.core.resources.IResource; -import org.eclipse.core.resources.ResourcesPlugin; -import org.eclipse.core.runtime.IPath; -import org.eclipse.core.runtime.Path; -import org.eclipse.jface.text.IDocumentExtension3; -import org.eclipse.jface.text.IDocumentPartitioner; -import org.eclipse.jst.jsp.core.internal.modelhandler.EmbeddedTypeStateData; -import org.eclipse.jst.jsp.core.internal.text.StructuredTextPartitionerForJSP; -import org.eclipse.wst.sse.core.internal.ltk.modelhandler.EmbeddedTypeHandler; -import org.eclipse.wst.sse.core.internal.modelhandler.EmbeddedTypeRegistry; -import org.eclipse.wst.sse.core.internal.modelhandler.EmbeddedTypeRegistryImpl; -import org.eclipse.wst.sse.core.internal.provisional.INodeAdapter; -import org.eclipse.wst.sse.core.internal.provisional.INodeAdapterFactory; -import org.eclipse.wst.sse.core.internal.provisional.INodeNotifier; -import org.eclipse.wst.sse.core.internal.provisional.IStructuredModel; -import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredPartitioning; -import org.eclipse.wst.sse.core.internal.util.Debug; -import org.eclipse.wst.sse.core.internal.util.StringUtils; -import org.eclipse.wst.xml.core.internal.provisional.document.IDOMNode; - -/** - * This class has the responsibility to provide - * an embedded factory registry for JSP Aware INodeAdapter Factories - * to use. - * - * Typically, the embedded type is to be considered a feature of - * the document, so JSP Aware AdpaterFactories should call - * getAdapter(PageDirectiveAdapter.class) directoy on the document - * (or owning document) node. - */ -public class PageDirectiveAdapterImpl implements PageDirectiveAdapter { - - protected static final String STR_CHARSET = "charset"; //$NON-NLS-1$ - private final static Object adapterType = PageDirectiveAdapter.class; - private IStructuredModel model; - protected final String[] JAVASCRIPT_LANGUAGE_KEYS = new String[]{"javascript", "javascript1.0", "javascript1.1_3", "javascript1.2", "javascript1.3", "javascript1.4", "javascript1.5", "javascript1.6", "jscript", "sashscript"}; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ //$NON-NLS-7$ //$NON-NLS-8$ //$NON-NLS-9$ //$NON-NLS-10$ - protected final String[] JAVA_LANGUAGE_KEYS = new String[]{"java"}; //$NON-NLS-1$ - - /** - * Constructor for PageDirectiveAdapterImpl. - */ - public PageDirectiveAdapterImpl(INodeNotifier target) { - super(); - notifierAtCreation = target; - // we need to remember our instance of model, - // in case we need to "signal" a re-init needed. - if (target instanceof IDOMNode) { - IDOMNode node = (IDOMNode) target; - model = node.getModel(); - } - - } - - /** - * parses the full contentType value into its two parts - * the contentType, and the charset, if present. Note: this - * method is a lightly modified version of a method in AbstractHeadParser. - * There, we're mostly interested in the charset part of contentTypeValue. - * Here, we're mostly interested in the mimeType part. - */ - private String getMimeTypeFromContentTypeValue(String contentTypeValue) { - if (contentTypeValue == null) - return null; - String cleanContentTypeValue = StringUtils.stripNonLetterDigits(contentTypeValue); - StringTokenizer tokenizer = new StringTokenizer(cleanContentTypeValue, ";= \t\n\r\f"); //$NON-NLS-1$ - int tLen = tokenizer.countTokens(); - // if contains encoding should have three tokens, the mimetype, the word 'charset', and the encoding value - String[] tokens = new String[tLen]; - int j = 0; - while (tokenizer.hasMoreTokens()) { - tokens[j] = tokenizer.nextToken(); - j++; - } - // - // Following is the common form for target expression - // <META http-equiv="Content-Type" content="text/html; charset=UTF-8"> - // But apparrently is also valid without the content type there, - // just the charset, as follows: - // <META http-equiv="Content-Type" content="charset=UTF-8"> - // So we'll loop through tokens and key off of 'charset' - - int charsetPos = -1; - for (int i = 0; i < tokens.length; i++) { - if (tokens[i].equalsIgnoreCase(STR_CHARSET)) { - charsetPos = i; - break; - } - } - //String charset = null; - String contentType = null; - if (charsetPos > -1) { - // case where charset was present - // int charsetValuePos = charsetPos + 1; - // if (charsetValuePos < tokens.length) { - // charset = tokens[charsetValuePos]; - // } - int contentTypeValuePos = charsetPos - 1; - if (contentTypeValuePos > -1) { - contentType = tokens[contentTypeValuePos]; - } - } - else { - // charset was not present, so if there's - // a value, we assume its the contentType value - if (tokens.length > 0) { - contentType = tokens[0]; - } - } - return contentType; - } - - private EmbeddedTypeHandler embeddedTypeHandler; - private List embeddedFactoryRegistry = new ArrayList(); - private String cachedLanguage; - private String cachedContentType; - private INodeNotifier notifierAtCreation; - - private int firstLanguagePosition = -1; - private int firstContentTypePosition = -1; - - private boolean reinitializing; - - /* - * @see INodeAdapter#isAdapterForType(Object) - */ - public boolean isAdapterForType(Object type) { - return (type == adapterType); - } - - /* - * @see INodeAdapter#notifyChanged(INodeNotifier, int, Object, Object, Object, int) - */ - public void notifyChanged(INodeNotifier notifier, int eventType, Object changedFeature, Object oldValue, Object newValue, int pos) { - } - - public void setEmbeddedType(EmbeddedTypeHandler handler) { - // if really the same handler, no need for further processing - if (embeddedTypeHandler == handler) { - return; - } - // then one exists, and the new one is truely different, so we need to - // release and remove current factories - if (embeddedTypeHandler != null) { - Iterator list = embeddedFactoryRegistry.iterator(); - while (list.hasNext()) { - INodeAdapterFactory factory = (INodeAdapterFactory) list.next(); - factory.release(); - } - - embeddedFactoryRegistry.clear(); - } - - embeddedTypeHandler = handler; - // when the handler is set, "transfer" its factories to our own list. - // note: our own list may also be added to else where, such as on - // "editor side". - if (embeddedTypeHandler != null) { - Iterator iterator = embeddedTypeHandler.getAdapterFactories().iterator(); - while (iterator.hasNext()) { - INodeAdapterFactory factory = (INodeAdapterFactory) iterator.next(); - embeddedFactoryRegistry.add(factory); - } - } - } - - /** - * @see PageDirectiveAdapter#adapt(INodeNotifier, Object) - */ - public INodeAdapter adapt(INodeNotifier notifier, Object type) { - INodeAdapter result = null; - // if embeddedContentType hasn't been set, - // then we can not adapt it. - if (embeddedTypeHandler != null) { - if (embeddedFactoryRegistry != null) { - Iterator iterator = embeddedFactoryRegistry.iterator(); - INodeAdapterFactory factory = null; - while (iterator.hasNext()) { - factory = (INodeAdapterFactory) iterator.next(); - if (factory.isFactoryForType(type)) { - result = factory.adapt(notifier); - break; - } - } - } - } - return result; - - } - - /** - * @see PageDirectiveAdapter#getEmbeddedType() - */ - public EmbeddedTypeHandler getEmbeddedType() { - if (embeddedTypeHandler == null) { - embeddedTypeHandler = getDefaultEmbeddedType(); - } - return embeddedTypeHandler; - } - - public void addEmbeddedFactory(INodeAdapterFactory factory) { - // should we check if already exists in list? - embeddedFactoryRegistry.add(factory); - } - - // /** - // * Used by PageDirectiveWatchers to signal that some important attribute has changed, and - // * any cached values should be re-calcuated - // */ - // void changed() { - // // we won't actually check if change is needed, if the model state is already changing. - // if (!model.isReinitializationNeeded()) { - // // go through our list of page watcher adapters, and updates the attributes - // // we're interested in, if and only if they are the earliest occurance in the resource - // String potentialContentType = null; - // String potentialLanguage = null; - // int contentTypePosition = -1; - // int languagePosition = -1; - // Iterator iterator = pageDirectiveWatchers.iterator(); - // while (iterator.hasNext()) { - // PageDirectiveWatcher pdWatcher = (PageDirectiveWatcher) iterator.next(); - // String contentType = pdWatcher.getContentType(); - // String language = pdWatcher.getLanguage(); - // int offset = pdWatcher.getOffset(); - // if (potentialContentType == null || (hasValue(contentType) && (offset < contentTypePosition))) { - // potentialContentType = contentType; - // contentTypePosition = offset; - // } - // } - // // now we have the best candiates for cached values, let's see if they've really changed from - // // what we had. If so, note we go through the setters so side effects can take place there. - // potentialContentType = getMimeTypeFromContentTypeValue(potentialContentType); - // if (potentialContentType == null || potentialContentType.length() == 0) { - // //potentialContentType = getDefaultContentType(); - // } else { - // setCachedContentType(potentialContentType); - // } - // - // if (potentialLanguage != null && hasValue(potentialLanguage)) { - // setCachedLanguage(potentialLanguage); - // } - // } - // } - void changedContentType(int elementOffset, String newValue) { - // only need to process if this new value is - // earlier in the file than our current value - if (firstContentTypePosition == -1 || elementOffset <= firstContentTypePosition) { - // dw_TODO: update embedded partitioner in JSP document partitioner - // nsd_TODO: update embedded partitioner in JSP document partitioner - - // no need to change current value, if we're told some - // earlier value is null or blank (sounds like an error, anyway) - if (hasValue(newValue)) { - firstContentTypePosition = elementOffset; - String potentialContentType = getMimeTypeFromContentTypeValue(newValue); - // only do the set processing if different - // from what it already is - // if (!potentialContentType.equalsIgnoreCase(cachedLanguage)) { - setCachedContentType(potentialContentType); - // } - } - } - } - - /** - * Used by PageDirectiveWatchers to signal that some important attribute has changed, and - * any cached values should be re-calcuated - */ - void changedLanguage(int elementOffset, String newValue) { - // only need to process if this new value is - // earlier in the file than our current value - // has to be less than or equal to, in case our previous earliest one, - // is itself changing! - if (firstLanguagePosition == -1 || elementOffset <= firstLanguagePosition) { - - // no need to change current value, if we're told some - // earlier value is null or blank (sounds like an error, anyway) - if (hasValue(newValue)) { - firstLanguagePosition = elementOffset; - // only do the set processing if different - // from what it already is - if (!newValue.equalsIgnoreCase(cachedLanguage)) { - setCachedLanguage(newValue); - } - } - - // dw_TODO: set language in document partitioner - // nsd_TODO: set language in document partitioner - } - } - - /** - * Used by PageDirectiveWatchers to signal that some important attribute has changed, and - * any cached values should be re-calcuated - */ - void changedPageEncoding(int elementOffset, String newValue) { - - // we don't currently track active value, since - // just need during read and write (where its - // calculated. We will need in future, to - // acurately clone a model and to display - // "current encoding" to user in status bar. - } - - /** - * Method hasValue. - * @param contentType - * @return boolean - */ - private boolean hasValue(String value) { - if (value != null && value.length() > 0) - return true; - else - return false; - } - - /** - * Returns the cachedContentType. - * @return String - */ - public String getContentType() { - if (cachedContentType == null) { - cachedContentType = getDefaultContentType(); - } - return cachedContentType; - } - - /** - * Method getDefaultContentType. - * @return String - */ - private String getDefaultContentType() { - return "text/html"; //$NON-NLS-1$ - } - - /** - * Returns the cachedLanguage. - * @return String - */ - public String getLanguage() { - if (cachedLanguage == null) - cachedLanguage = getDefaultLanguage(); - return cachedLanguage; - } - - /** - * Method getDefaultLanguage. - * @return String - */ - private String getDefaultLanguage() { - return "java"; //$NON-NLS-1$ - } - - /** - * Sets the cachedContentType. - * @param cachedContentType The cachedContentType to set - */ - public void setCachedContentType(String newContentType) { - // if the passed in value is the same as existing, there's nothing to do. - // if its different, then we need to change the contentHandler as well - // and, more to the point, signal a re-initializtation is needed. - // Note: if the value we're getting set to does not have a handler in the registry, - // we'll actually not set it to null or anything, we'll just continue on with the one - // we have. This is pretty important to avoid re-initializing on every key stroke if someone - // is typing in a new content type, but haven't yet finished the whole "word". - // However, if an contentType is not recognized, the registry returns the one - // for XML. - // if (this.cachedContentType != null && this.cachedContentType.equalsIgnoreCase(newContentType)) { // then do nothing - // } else { - this.cachedContentType = newContentType; - // see if we can update embedded handler - // if (this.cachedContentType == null || this.cachedContentType.length() == 0) { // do nothing, don't can't get a new handler, so we'll keep what we have - // } else { - - // getHandler should always return something (never null), based - // on the rules in the factory. - EmbeddedTypeHandler handler = getHandlerFor(this.cachedContentType); - // we do this check for re-init here, instead of in setEmbeddedType, - // since setEmbeddedType is called during the normal initializtion - // process, when re-init is not needed (since there is no content) - if (embeddedTypeHandler != null && handler != null && embeddedTypeHandler != handler) { - // changing this embedded handler here may - // be in the middle of anotify loop, not sure - // if that'll cause problems. - - // be sure to hold oldHandler in temp var - // or else setEmbeddedType will "reset" it - // before modelReinitNeeded(oldHandler, handler) is called - EmbeddedTypeHandler oldHandler = embeddedTypeHandler; - setEmbeddedType(handler); - modelReinitNeeded(oldHandler, handler); - } - // } - - // } - - } - - /** - * This method is used to re-init based on embeddedTypeHandler - * changing. It is given priority over the language change, since - * there its more important to have old and new handlers's in the - * stateData field. - */ - private void modelReinitNeeded(EmbeddedTypeHandler oldHandler, EmbeddedTypeHandler newHandler) { - if (model.isReinitializationNeeded()) { - System.out.println("already being initialized"); //$NON-NLS-1$ - } - - try { - model.aboutToChangeModel(); - model.setReinitializeStateData(new EmbeddedTypeStateData(oldHandler, newHandler)); - model.setReinitializeNeeded(true); - } - finally { - model.changedModel(); - } - } - - /** - * Method modelReinitNeeded. - */ - private void modelReinitNeeded(String oldlanguage, String newLanguage) { - // bit of a short cut for now .... we dont' need language at the moment, - // but should set the state data - if (model.isReinitializationNeeded()) { - if (Debug.displayWarnings) { - System.out.println("already being initialized"); //$NON-NLS-1$ - } - } - else { - try { - // if already being re-initialized, we don't want to - // reset the data in the stateData field. - model.aboutToChangeModel(); - model.setReinitializeStateData(newLanguage); - model.setReinitializeNeeded(true); - } - finally { - model.changedModel(); - } - } - } - - public void setCachedLanguage(String newLanguage) { - if (cachedLanguage != null && languageStateChanged(cachedLanguage, newLanguage)) { // a complete re-init overkill in current system, since really just need for - // the line style providers, - // BUT, a change in language could effect other things, - // and we don't expect to happen often so a little overkill isn't too bad. - // The deep problem is that there is no way to get at the "edit side" adpapters - // specifically here in model class. - // we have to do the model changed sequence to get the - // screen to update. - // do not signal again, if signaled once (the reinit state data will be wrong. - // (this needs to be improved in future) - if (!model.isReinitializationNeeded()) { - modelReinitNeeded(cachedLanguage, newLanguage); - } - } - setLanguage(newLanguage); - } - - /** - * This is public access method, used especially - * from loader, for JSP Fragment support. - */ - public void setLanguage(String newLanguage) { - this.cachedLanguage = newLanguage; - IDocumentPartitioner partitioner = ((IDocumentExtension3) model.getStructuredDocument()).getDocumentPartitioner(IStructuredPartitioning.DEFAULT_STRUCTURED_PARTITIONING); - if (partitioner instanceof StructuredTextPartitionerForJSP) { - ((StructuredTextPartitionerForJSP) partitioner).setLanguage(newLanguage); - } - } - - /** - * Method languageStateChange. - * @param cachedLanguage - * @param newLanguage - * @return boolean - */ - private boolean languageStateChanged(String cachedLanguage, String newLanguage) { - boolean result = false; // languages are equal, then no change in state - if (!cachedLanguage.equalsIgnoreCase(newLanguage)) { - boolean oldLanguageKnown = languageKnown(cachedLanguage); - boolean newLanguageKnown = languageKnown(newLanguage); - result = newLanguageKnown || (!newLanguageKnown && oldLanguageKnown); - } - return result; - } - - /** - * Method languageKnown. - * @param cachedLanguage - * @return boolean - */ - private boolean languageKnown(String language) { - return (StringUtils.contains(JAVA_LANGUAGE_KEYS, language, false) || StringUtils.contains(JAVASCRIPT_LANGUAGE_KEYS, language, false)); - } - - private IFile getFile(IStructuredModel model) { - String location = model.getBaseLocation(); - IPath path = new Path(location); - if (!path.toFile().exists() && path.segmentCount() > 1) { - return ResourcesPlugin.getWorkspace().getRoot().getFile(path); - } - return null; - } - - private EmbeddedTypeHandler getHandlerFor(String contentType) { - EmbeddedTypeRegistry reg = getEmbeddedContentTypeRegistry(); - EmbeddedTypeHandler handler = null; - if (reg != null) - handler = reg.getTypeFor(contentType); - return handler; - } - - /** - * Gets the embeddedContentTypeRegistry. - * @return Returns a EmbeddedContentTypeRegistry - */ - private EmbeddedTypeRegistry getEmbeddedContentTypeRegistry() { - return EmbeddedTypeRegistryImpl.getInstance(); - } - - /** - * For JSP files, text/html is the default - * content type. This may want this different - * for types like jsv (jsp for voice xml) - * For now, hard code to new instance. - * In future, should get instance from registry. - * - * Specification cites HTML as the default contentType. - */ - protected EmbeddedTypeHandler getDefaultEmbeddedType() { - return getHandlerFor(getDefaultContentType()); - } - - public void contentSettingsChanged(IResource resource) { - // Note: we currently get notified multiple times, - // I assume since there's mulitple fields in the properties. - // For now, I'll assume that once we get notified, all the - // fields are accurate, so if we're reinitializing, don't - // check any further. To NOT do this causes concurrent modification - // exceptions. To do it, may cause us to miss when user changes - // two fields at once. Will need to test. - if (reinitializing) - return; - if (resource == null) - return; - IFile file = getFile(model); - if (file == null) - return; - // String filename = null; - // if (resource.FILE == resource.getType()) { - // filename = resource.getLocation().toString(); - // } - IProject project = file.getProject(); - if (project == null) - return; - if (!project.equals(resource.getProject())) - return; - // Note: these change notifications appear to be coming - // in based on any change in project. I'm not sure how - // to tell if they are for my particular file, or - // if there's some other error I'm making in listeners. - // the setters below should be smart enough - // to know if a meaningful change occurred, or - // not. Note: we seem to get called a lot (for resources other than our own?) - // with lots of 'null' values. The logic below may prevent the correct unsetting - // of a property (such as changing from a language setting back to 'none'). - // We may need a 'none' id, or something, to help detect that case, since we can't - // always assume the 'null' is accurate. - } - - public INodeNotifier getTarget() { - return notifierAtCreation; - } - - public void release() { - if (embeddedTypeHandler != null) { - if (embeddedFactoryRegistry != null) { - Iterator iterator = embeddedFactoryRegistry.iterator(); - INodeAdapterFactory factory = null; - while (iterator.hasNext()) { - factory = (INodeAdapterFactory) iterator.next(); - factory.release(); - } - } - // pa_TODO: possibly need to release here... - // or "uninitializeFactoryRegistry" - // initializeFactoryRegistry was called from JSPModelLoader - embeddedTypeHandler = null; - } - } -}
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