diff options
Diffstat (limited to 'bundles/org.eclipse.wst.sse.core/src/org/eclipse/wst/sse/core/internal/text/BasicStructuredDocument.java')
| -rw-r--r-- | bundles/org.eclipse.wst.sse.core/src/org/eclipse/wst/sse/core/internal/text/BasicStructuredDocument.java | 2685 |
1 files changed, 0 insertions, 2685 deletions
diff --git a/bundles/org.eclipse.wst.sse.core/src/org/eclipse/wst/sse/core/internal/text/BasicStructuredDocument.java b/bundles/org.eclipse.wst.sse.core/src/org/eclipse/wst/sse/core/internal/text/BasicStructuredDocument.java deleted file mode 100644 index 8b687bb2ad..0000000000 --- a/bundles/org.eclipse.wst.sse.core/src/org/eclipse/wst/sse/core/internal/text/BasicStructuredDocument.java +++ /dev/null @@ -1,2685 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2001, 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 - * Jens Lukowski/Innoopract - initial renaming/restructuring - * - *******************************************************************************/ -package org.eclipse.wst.sse.core.internal.text; - -import java.io.Reader; -import java.util.ArrayList; -import java.util.Collections; -import java.util.HashMap; -import java.util.Iterator; -import java.util.List; -import java.util.Map; - -import org.eclipse.core.runtime.Platform; -import org.eclipse.jface.text.BadLocationException; -import org.eclipse.jface.text.BadPartitioningException; -import org.eclipse.jface.text.BadPositionCategoryException; -import org.eclipse.jface.text.DefaultLineTracker; -import org.eclipse.jface.text.DocumentEvent; -import org.eclipse.jface.text.DocumentPartitioningChangedEvent; -import org.eclipse.jface.text.FindReplaceDocumentAdapter; -import org.eclipse.jface.text.IDocument; -import org.eclipse.jface.text.IDocumentExtension; -import org.eclipse.jface.text.IDocumentExtension3; -import org.eclipse.jface.text.IDocumentListener; -import org.eclipse.jface.text.IDocumentPartitioner; -import org.eclipse.jface.text.IDocumentPartitionerExtension; -import org.eclipse.jface.text.IDocumentPartitionerExtension2; -import org.eclipse.jface.text.IDocumentPartitioningListener; -import org.eclipse.jface.text.IDocumentPartitioningListenerExtension; -import org.eclipse.jface.text.IDocumentPartitioningListenerExtension2; -import org.eclipse.jface.text.ILineTracker; -import org.eclipse.jface.text.IPositionUpdater; -import org.eclipse.jface.text.IRegion; -import org.eclipse.jface.text.ITextStore; -import org.eclipse.jface.text.ITypedRegion; -import org.eclipse.jface.text.Position; -import org.eclipse.jface.text.SequentialRewriteTextStore; -import org.eclipse.jface.text.TypedRegion; -import org.eclipse.wst.sse.core.internal.Logger; -import org.eclipse.wst.sse.core.internal.document.StructuredDocumentFactory; -import org.eclipse.wst.sse.core.internal.encoding.EncodingMemento; -import org.eclipse.wst.sse.core.internal.ltk.parser.RegionParser; -import org.eclipse.wst.sse.core.internal.provisional.events.AboutToBeChangedEvent; -import org.eclipse.wst.sse.core.internal.provisional.events.IModelAboutToBeChangedListener; -import org.eclipse.wst.sse.core.internal.provisional.events.IStructuredDocumentListener; -import org.eclipse.wst.sse.core.internal.provisional.events.NoChangeEvent; -import org.eclipse.wst.sse.core.internal.provisional.events.RegionChangedEvent; -import org.eclipse.wst.sse.core.internal.provisional.events.RegionsReplacedEvent; -import org.eclipse.wst.sse.core.internal.provisional.events.StructuredDocumentEvent; -import org.eclipse.wst.sse.core.internal.provisional.events.StructuredDocumentRegionsReplacedEvent; -import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocument; -import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocumentRegion; -import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocumentRegionList; -import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredPartitioning; -import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredTextReParser; -import org.eclipse.wst.sse.core.internal.text.rules.StructuredTextPartitioner; -import org.eclipse.wst.sse.core.internal.undo.IStructuredTextUndoManager; -import org.eclipse.wst.sse.core.internal.undo.StructuredTextUndoManager; -import org.eclipse.wst.sse.core.internal.util.Assert; -import org.eclipse.wst.sse.core.internal.util.Debug; -import org.eclipse.wst.sse.core.internal.util.Utilities; - - -/** - * The standard implementation of structured document. - */ -public class BasicStructuredDocument implements IStructuredDocument, IDocumentExtension, IDocumentExtension3, CharSequence, IRegionComparible { - - /** - * This ThreadLocal construct is used so each thread can maintain its only - * pointer to the double linked list that manages the documents regions. - * The only thing we "gaurd" for is that a previously cached region has - * been deleted. - * - * The object that is kept in the thread local's map, is just a pointer to - * an array position. That's because the object there needs to be "free" - * from references to other objects, or it will not be garbage collected. - */ - private class CurrentDocumentRegionCache { - // I'm assuming for now there would never be so many threads that - // this arrayList needs to be bounded, or 'cleaned up'. - // this assumption should be tested in practice and long running - // jobs -- found not to be a good assumption. See below. - private List cachedRegionPositionArray = Collections.synchronizedList(new ArrayList()); - private final boolean DEBUG = false; - private final int MAX_SIZE = 50; - - - private ThreadLocal threadLocalCachePosition = new ThreadLocal(); - - IStructuredDocumentRegion get() { - IStructuredDocumentRegion region = null; - int pos = getThreadLocalPosition(); - try { - region = (IStructuredDocumentRegion) cachedRegionPositionArray.get(pos); - } - catch (IndexOutOfBoundsException e) { - // even though the cachedRegionPosition is synchronized, - // that just means each access is syncronized, its - // still possible for another thread to cause it to - // be cleared, after this thread gets it position. - // So, if that happens, all we can do is reset to beginning. - // This should be extremely rare (in other words, probably - // not worth using synchronized blocks - // to access cachedRegionPositionArray. - reinitThreadLocalPosition(); - resetToInitialState(); - } - if (region == null) { - region = resetToInitialState(); - } - else - // region not null - if (region.isDeleted()) { - region = resetToInitialState(); - } - return region; - } - - private int getThreadLocalPosition() { - Object threadLocalObject = threadLocalCachePosition.get(); - int pos = -1; - if (threadLocalObject == null) { - - pos = reinitThreadLocalPosition(); - } - else { - pos = ((Integer) threadLocalObject).intValue(); - } - return pos; - } - - /** - * @return - */ - private int reinitThreadLocalPosition() { - Integer position; - int pos; - // TODO_future: think of a better solution that doesn't - // require this kludge. This is especially required because - // some infrasture, such as reconciler, actually null out - // their thread object and recreate it, 500 msecs later - // (approximately). - // Note: the likely solution in future is to clear after every - // heavy use of getCachedRegion, such as in creating node - // lists, or reparsing or partioning. - if (cachedRegionPositionArray.size() > MAX_SIZE) { - cachedRegionPositionArray.clear(); - if (DEBUG) { - System.out.println("cachedRegionPositionArray cleared at size " + MAX_SIZE); //$NON-NLS-1$ - } - } - position = new Integer(cachedRegionPositionArray.size()); - threadLocalCachePosition.set(position); - cachedRegionPositionArray.add(position.intValue(), null); - pos = position.intValue(); - return pos; - } - - private IStructuredDocumentRegion resetToInitialState() { - IStructuredDocumentRegion region; - region = getFirstStructuredDocumentRegion(); - set(region); - return region; - } - - // TODO: make privite if used, else delete - void set(int pos, IStructuredDocumentRegion region) { - cachedRegionPositionArray.set(pos, region); - } - - void set(IStructuredDocumentRegion region) { - try { - int pos = getThreadLocalPosition(); - cachedRegionPositionArray.set(pos, region); - } - catch (IndexOutOfBoundsException e) { - // even though the cachedRegionPosition is synchronized, - // that just means each access is syncronized, its - // still possible for another thread to cause it to - // be cleared, after this thread gets it position. - // So, if that happens, all we can do is reset to beginning. - // This should be extremely rare (in other words, probably - // not worth using synchronized blocks - // to access cachedRegionPositionArray. - reinitThreadLocalPosition(); - resetToInitialState(); - } - } - } - - /** - * This NullDocumentEvent is used to complete the "aboutToChange" and - * "changed" cycle, when in fact the original change is no longer valid. - * The only known (valid) case of this is when a model re-initialize takes - * place, which causes setText to be called in the middle of some previous - * change. [This architecture will be improved in future]. - */ - public class NullDocumentEvent extends DocumentEvent { - public NullDocumentEvent() { - this(BasicStructuredDocument.this, 0, 0, ""); //$NON-NLS-1$ - } - - private NullDocumentEvent(IDocument doc, int offset, int length, String text) { - super(doc, offset, length, text); - } - } - - class RegisteredReplace { - /** The owner of this replace operation. */ - IDocumentListener fOwner; - /** The replace operation */ - IDocumentExtension.IReplace fReplace; - - /** - * Creates a new bundle object. - * - * @param owner - * the document listener owning the replace operation - * @param replace - * the replace operation - */ - RegisteredReplace(IDocumentListener owner, IDocumentExtension.IReplace replace) { - fOwner = owner; - fReplace = replace; - } - } - - /** - * these control variable isn't mark as 'final' since there's some unit - * tests that manipulate it. For final product, it should be. - */ - - private static boolean USE_LOCAL_THREAD = true; - - /** - * purely for debugging/performance measurements In practice, would always - * be 'true'. (and should never be called by called by clients). Its not - * 'final' or private just so it can be varied during - * debugging/performance measurement runs. - * - * @param use_local_thread - */ - public static void setUSE_LOCAL_THREAD(final boolean use_local_thread) { - USE_LOCAL_THREAD = use_local_thread; - } - - private IStructuredDocumentRegion cachedDocumentRegion; - private EncodingMemento encodingMemento; - private boolean fAcceptPostNotificationReplaces = true; - private CurrentDocumentRegionCache fCurrentDocumnetRegionCache; - private DocumentEvent fDocumentEvent; - private IDocumentListener[] fDocumentListeners; - - /** - * The registered document partitioners. - */ - private Map fDocumentPartitioners; - /** The registered document partitioning listeners */ - private List fDocumentPartitioningListeners; - private IStructuredDocumentRegion firstDocumentRegion; - private RegionParser fParser; - private GenericPositionManager fPositionManager; - private List fPostNotificationChanges; - private IDocumentListener[] fPrenotifiedDocumentListeners; - private int fReentranceCount = 0; - private IStructuredTextReParser fReParser; - private int fStoppedCount = 0; - - private ITextStore fStore; - private Object[] fStructuredDocumentAboutToChangeListeners; - private Object[] fStructuredDocumentChangedListeners; - private Object[] fStructuredDocumentChangingListeners; - - private ILineTracker fTracker; - private IStructuredTextUndoManager fUndoManager; - private IStructuredDocumentRegion lastDocumentRegion; - - private byte[] listenerLock = new byte[0]; - private NullDocumentEvent NULL_DOCUMENT_EVENT; - - // - /** - * in case preferred delimiter is not set, we'll assume the platform - * default Note: it is not final static to make sure it won't be inlined - * by compiler. - */ - private final String PlatformLineDelimiter = System.getProperty("line.separator"); //$NON-NLS-1$ - /** - * theoretically, a document can contain mixed line delimiters - */ - private String preferedDelimiter; - private final String READ_ONLY_REGIONS_CATEGORY = "_READ_ONLY_REGIONS_CATEGORY_"; //$NON-NLS-1$ - /** - * debug variable only - * - * @param parser - */ - private long startStreamTime; - /** - * debug variable only - * - * @param parser - */ - private long startTime; - - public BasicStructuredDocument() { - super(); - fCurrentDocumnetRegionCache = new CurrentDocumentRegionCache(); - fStore = new StructuredDocumentTextStore(50, 300); - setLineTracker(new DefaultLineTracker()); - NULL_DOCUMENT_EVENT = new NullDocumentEvent(); - - internal_addPositionCategory(READ_ONLY_REGIONS_CATEGORY); - internal_addPositionUpdater(new DeleteEqualPositionUpdater(READ_ONLY_REGIONS_CATEGORY)); - - } - - /** - * This is the primary way to get a new structuredDocument. Its best to - * use the factory methods in ModelManger to create a new - * IStructuredDocument, since it will get and initialize the parser - * according to the desired content type. - */ - public BasicStructuredDocument(RegionParser parser) { - this(); - Assert.isNotNull(parser, "Program Error: IStructuredDocument can not be created with null parser"); //$NON-NLS-1$ - // go through setter in case there is side effects - internal_setParser(parser); - } - - private void _clearDocumentEvent() { - // no hard and fast requirement to null out ... just seems like - // a good idea, since we are done with it. - fDocumentEvent = null; - } - - private void _fireDocumentAboutToChange(Object[] listeners) { - // most DocumentAboutToBeChanged listeners do not anticipate - // DocumentEvent == null. So make sure documentEvent is not - // null. (this should never happen, yet it does sometimes) - if (fDocumentEvent == null) { - fDocumentEvent = new NullDocumentEvent(); - } - // we must assign listeners to local variable, since the add and - // remove - // listner - // methods can change the actual instance of the listener array from - // another thread - if (listeners != null) { - Object[] holdListeners = listeners; - // Note: the docEvent is created in replaceText API - // fire - for (int i = 0; i < holdListeners.length; i++) { - if (Debug.perfTest || Debug.perfTestStructuredDocumentEventOnly) { - startTime = System.currentTimeMillis(); - } - // safeguard from listeners that throw exceptions - try { - // this is a safe cast, since addListners requires a - // IStructuredDocumentListener - ((IDocumentListener) holdListeners[i]).documentAboutToBeChanged(fDocumentEvent); - } - catch (Exception exception) { - Logger.logException(exception); - } - if (Debug.perfTest || Debug.perfTestStructuredDocumentEventOnly) { - long stopTime = System.currentTimeMillis(); - System.out.println("\n\t\t\t\t IStructuredDocument::fireStructuredDocumentEvent. Time was " + (stopTime - startTime) + " msecs to fire NewModelEvent to instance of " + holdListeners[i].getClass()); //$NON-NLS-2$//$NON-NLS-1$ - } - } - } - } - - private void notifyDocumentPartitionersAboutToChange(DocumentEvent documentEvent) { - if (fDocumentPartitioners != null) { - Iterator e = fDocumentPartitioners.values().iterator(); - while (e.hasNext()) { - IDocumentPartitioner p = (IDocumentPartitioner) e.next(); - // safeguard from listeners that throw exceptions - try { - p.documentAboutToBeChanged(documentEvent); - } - catch (Exception exception) { - Logger.logException(exception); - } - } - } - } - - private void _fireDocumentChanged(Object[] listeners, StructuredDocumentEvent event) { - - // we must assign listeners to local variable, since the add and - // remove - // listner - // methods can change the actual instance of the listener array from - // another thread - if (listeners != null) { - Object[] holdListeners = listeners; - // NOTE: document event is created in replace Text API and setText - // API - // now fire - for (int i = 0; i < holdListeners.length; i++) { - if (Debug.perfTest || Debug.perfTestStructuredDocumentEventOnly) { - startTime = System.currentTimeMillis(); - } - - // safeguard from listeners that throw exceptions - try { - // this is a safe cast, since addListners requires a - // IStructuredDocumentListener - // Notes: fDocumentEvent can be "suddenly" null, if one of - // the - // previous changes - // caused a "setText" to be called. The only known case of - // this - // is a model reset - // due to page directive changing. Eventually we should - // change - // archetecture to have - // event que and be able to "cancel" pending events, but - // for - // now, we'll just pass a - // NullDocumentEvent. By the way, it is important to send - // something, since clients might - // have indeterminant state due to "aboutToChange" being - // sent - // earlier. - if (fDocumentEvent == null) { - ((IDocumentListener) holdListeners[i]).documentChanged(NULL_DOCUMENT_EVENT); - } - else { - ((IDocumentListener) holdListeners[i]).documentChanged(fDocumentEvent); - } - } - catch (Exception exception) { - Logger.logException(exception); - } - if (Debug.perfTest || Debug.perfTestStructuredDocumentEventOnly) { - long stopTime = System.currentTimeMillis(); - System.out.println("\n\t\t\t\t IStructuredDocument::fireStructuredDocumentEvent. Time was " + (stopTime - startTime) + " msecs to fire NewModelEvent to instance of " + holdListeners[i].getClass()); //$NON-NLS-2$//$NON-NLS-1$ - } - } - } - } - - private void notifyDocumentPartitionersDocumentChanged(DocumentEvent documentEvent) { - if (fDocumentPartitioners != null) { - Iterator e = fDocumentPartitioners.values().iterator(); - while (e.hasNext()) { - IDocumentPartitioner p = (IDocumentPartitioner) e.next(); - // safeguard from listeners that throw exceptions - try { - if (p instanceof IDocumentPartitionerExtension) { - // IRegion changedPartion = - ((IDocumentPartitionerExtension) p).documentChanged2(documentEvent); - } - else { - p.documentChanged(documentEvent); - } - } - catch (Exception exception) { - Logger.logException(exception); - } - } - } - } - - - private void _fireEvent(Object[] listeners, NoChangeEvent event) { - // we must assign listeners to local variable, since the add and - // remove - // listner - // methods can change the actual instance of the listener array from - // another thread - if (listeners != null) { - Object[] holdListeners = listeners; - for (int i = 0; i < holdListeners.length; i++) { - if (Debug.perfTest || Debug.perfTestStructuredDocumentEventOnly) { - startTime = System.currentTimeMillis(); - } - // safeguard from listeners that throw exceptions - try { - // this is a safe cast, since addListners requires a - // IStructuredDocumentListener - ((IStructuredDocumentListener) holdListeners[i]).noChange(event); - } - catch (Exception exception) { - Logger.logException(exception); - } - if (Debug.perfTest || Debug.perfTestStructuredDocumentEventOnly) { - long stopTime = System.currentTimeMillis(); - System.out.println("\n\t\t\t\t IStructuredDocument::fireStructuredDocumentEvent. Time was " + (stopTime - startTime) + " msecs to fire NewModelEvent to instance of " + holdListeners[i].getClass()); //$NON-NLS-2$//$NON-NLS-1$ - } - } - } - } - - private void _fireEvent(Object[] listeners, RegionChangedEvent event) { - // we must assign listeners to local variable, since the add and - // remove - // listner - // methods can change the actual instance of the listener array from - // another thread - if (listeners != null) { - Object[] holdListeners = listeners; - for (int i = 0; i < holdListeners.length; i++) { - if (Debug.perfTest || Debug.perfTestStructuredDocumentEventOnly) { - startTime = System.currentTimeMillis(); - } - // safeguard from listeners that throw exceptions - try { - // this is a safe cast, since addListners requires a - // IStructuredDocumentListener - ((IStructuredDocumentListener) holdListeners[i]).regionChanged(event); - } - catch (Exception exception) { - Logger.logException(exception); - } - if (Debug.perfTest || Debug.perfTestStructuredDocumentEventOnly) { - long stopTime = System.currentTimeMillis(); - System.out.println("\n\t\t\t\t IStructuredDocument::fireStructuredDocumentEvent. Time was " + (stopTime - startTime) + " msecs to fire NewModelEvent to instance of " + holdListeners[i].getClass()); //$NON-NLS-2$//$NON-NLS-1$ - } - } - } - } - - private void _fireEvent(Object[] listeners, RegionsReplacedEvent event) { - // we must assign listeners to local variable, since the add and - // remove - // listner - // methods can change the actual instance of the listener array from - // another thread - if (listeners != null) { - Object[] holdListeners = listeners; - for (int i = 0; i < holdListeners.length; i++) { - if (Debug.perfTest || Debug.perfTestStructuredDocumentEventOnly) { - startTime = System.currentTimeMillis(); - } - // safeguard from listeners that throw exceptions - try { - // this is a safe cast, since addListners requires a - // IStructuredDocumentListener - ((IStructuredDocumentListener) holdListeners[i]).regionsReplaced(event); - } - catch (Exception exception) { - Logger.logException(exception); - } - if (Debug.perfTest || Debug.perfTestStructuredDocumentEventOnly) { - long stopTime = System.currentTimeMillis(); - System.out.println("\n\t\t\t\t IStructuredDocument::fireStructuredDocumentEvent. Time was " + (stopTime - startTime) + " msecs to fire NewModelEvent to instance of " + holdListeners[i].getClass()); //$NON-NLS-2$//$NON-NLS-1$ - } - } - } - } - - private void _fireEvent(Object[] listeners, StructuredDocumentRegionsReplacedEvent event) { - // we must assign listeners to local variable, since the add and - // remove - // listner - // methods can change the actual instance of the listener array from - // another thread - if (listeners != null) { - Object[] holdListeners = listeners; - for (int i = 0; i < holdListeners.length; i++) { - if (Debug.perfTest || Debug.perfTestStructuredDocumentEventOnly) { - startTime = System.currentTimeMillis(); - } - // safeguard from listeners that throw exceptions - try { - // this is a safe cast, since addListners requires a - // IStructuredDocumentListener - ((IStructuredDocumentListener) holdListeners[i]).nodesReplaced(event); - } - catch (Exception exception) { - Logger.logException(exception); - } - if (Debug.perfTest || Debug.perfTestStructuredDocumentEventOnly) { - long stopTime = System.currentTimeMillis(); - System.out.println("\n\t\t\t\t IStructuredDocument::fireStructuredDocumentEvent. Time was " + (stopTime - startTime) + " msecs to fire NewModelEvent to instance of " + holdListeners[i].getClass()); //$NON-NLS-2$//$NON-NLS-1$ - } - } - } - } - - private void _fireStructuredDocumentAboutToChange(Object[] listeners) { - // we must assign listeners to local variable, since the add and - // remove - // listner - // methods can change the actual instance of the listener array from - // another thread - if (listeners != null) { - Object[] holdListeners = listeners; - // Note: the docEvent is created in replaceText API - // fire - for (int i = 0; i < holdListeners.length; i++) { - if (Debug.perfTest || Debug.perfTestStructuredDocumentEventOnly) { - startTime = System.currentTimeMillis(); - } - // safeguard from listeners that throw exceptions - try { - // notice the AboutToBeChangedEvent is created from the - // DocumentEvent, since it is (nearly) - // the same information. ?What to do about - // originalRequester? - if (fDocumentEvent == null) { - fDocumentEvent = new NullDocumentEvent(); - } - AboutToBeChangedEvent aboutToBeChangedEvent = new AboutToBeChangedEvent(this, null, fDocumentEvent.getText(), fDocumentEvent.getOffset(), fDocumentEvent.getLength()); - // this is a safe cast, since addListners requires a - // IStructuredDocumentListener - ((IModelAboutToBeChangedListener) holdListeners[i]).modelAboutToBeChanged(aboutToBeChangedEvent); - } - catch (Exception exception) { - Logger.logException(exception); - } - if (Debug.perfTest || Debug.perfTestStructuredDocumentEventOnly) { - long stopTime = System.currentTimeMillis(); - System.out.println("\n\t\t\t\t IStructuredDocument::fireStructuredDocumentEvent. Time was " + (stopTime - startTime) + " msecs to fire NewModelEvent to instance of " + holdListeners[i].getClass()); //$NON-NLS-2$//$NON-NLS-1$ - } - } - } - } - - protected void acquireLock() { - // do nothing here in super class - } - - /** - * addModelAboutToBeChangedListener method comment. - */ - public void addDocumentAboutToChangeListener(IModelAboutToBeChangedListener listener) { - synchronized (listenerLock) { - - // make sure listener is not already in listening - // (and if it is, print a warning to aid debugging, if needed) - if (!Utilities.contains(fStructuredDocumentAboutToChangeListeners, listener)) { - int oldSize = 0; - if (fStructuredDocumentAboutToChangeListeners != null) { - // normally won't be null, but we need to be sure, for - // first - // time through - oldSize = fStructuredDocumentAboutToChangeListeners.length; - } - int newSize = oldSize + 1; - Object[] newListeners = new Object[newSize]; - if (fStructuredDocumentAboutToChangeListeners != null) { - System.arraycopy(fStructuredDocumentAboutToChangeListeners, 0, newListeners, 0, oldSize); - } - // add listener to last position - newListeners[newSize - 1] = listener; - // - // now switch new for old - fStructuredDocumentAboutToChangeListeners = newListeners; - // - } - } - } - - /** - * The StructuredDocumentListners and ModelChagnedListeners are very - * similar. They both receive identical events. The difference is the - * timing. The "pure" StructuredDocumentListners are notified after the - * structuredDocument has been changed, but before other, related models - * may have been changed such as the Structural Model. The Structural - * model is in fact itself a "pure" StructuredDocumentListner. The - * ModelChangedListeners can rest assured that all models and data have - * been updated from the change by the tiem they are notified. This is - * especially important for the text widget, for example, which may rely - * on both structuredDocument and structural model information. - */ - public void addDocumentChangedListener(IStructuredDocumentListener listener) { - synchronized (listenerLock) { - - if (Debug.debugStructuredDocument) { - System.out.println("IStructuredDocument::addModelChangedListener. Request to add an instance of " + listener.getClass() + " as a listener on structuredDocument."); //$NON-NLS-2$//$NON-NLS-1$ - } - // make sure listener is not already in listening - // (and if it is, print a warning to aid debugging, if needed) - if (Utilities.contains(fStructuredDocumentChangedListeners, listener)) { - if (Debug.displayWarnings) { - System.out.println("IStructuredDocument::addModelChangedListener. listener " + listener + " was addeded more than once. "); //$NON-NLS-2$//$NON-NLS-1$ - } - } - else { - if (Debug.debugStructuredDocument) { - System.out.println("IStructuredDocument::addModelChangedListener. Adding an instance of " + listener.getClass() + " as a listener on structuredDocument."); //$NON-NLS-2$//$NON-NLS-1$ - } - int oldSize = 0; - if (fStructuredDocumentChangedListeners != null) { - // normally won't be null, but we need to be sure, for - // first - // time through - oldSize = fStructuredDocumentChangedListeners.length; - } - int newSize = oldSize + 1; - Object[] newListeners = new Object[newSize]; - if (fStructuredDocumentChangedListeners != null) { - System.arraycopy(fStructuredDocumentChangedListeners, 0, newListeners, 0, oldSize); - } - // add listener to last position - newListeners[newSize - 1] = listener; - // - // now switch new for old - fStructuredDocumentChangedListeners = newListeners; - // - // when a listener is added, - // send the new model event to that one particular listener, - // so it - // can initialize itself with the current state of the model - // listener.newModel(new NewModelEvent(this, listener)); - } - } - } - - public void addDocumentChangingListener(IStructuredDocumentListener listener) { - synchronized (listenerLock) { - - if (Debug.debugStructuredDocument) { - System.out.println("IStructuredDocument::addStructuredDocumentListener. Request to add an instance of " + listener.getClass() + " as a listener on structuredDocument."); //$NON-NLS-2$//$NON-NLS-1$ - } - // make sure listener is not already in listening - // (and if it is, print a warning to aid debugging, if needed) - if (Utilities.contains(fStructuredDocumentChangingListeners, listener)) { - if (Debug.displayWarnings) { - System.out.println("IStructuredDocument::addStructuredDocumentListener. listener " + listener + " was addeded more than once. "); //$NON-NLS-2$//$NON-NLS-1$ - } - } - else { - if (Debug.debugStructuredDocument) { - System.out.println("IStructuredDocument::addStructuredDocumentListener. Adding an instance of " + listener.getClass() + " as a listener on structuredDocument."); //$NON-NLS-2$//$NON-NLS-1$ - } - int oldSize = 0; - if (fStructuredDocumentChangingListeners != null) { - // normally won't be null, but we need to be sure, for - // first - // time through - oldSize = fStructuredDocumentChangingListeners.length; - } - int newSize = oldSize + 1; - Object[] newListeners = new Object[newSize]; - if (fStructuredDocumentChangingListeners != null) { - System.arraycopy(fStructuredDocumentChangingListeners, 0, newListeners, 0, oldSize); - } - // add listener to last position - newListeners[newSize - 1] = listener; - // - // now switch new for old - fStructuredDocumentChangingListeners = newListeners; - // - // when a listener is added, - // send the new model event to that one particular listener, - // so it - // can initialize itself with the current state of the model - // listener.newModel(new NewModelEvent(this, listener)); - } - } - } - - /** - * We manage our own document listners, instead of delegating to our - * parentDocument, so we can fire at very end (and not when the - * parentDocument changes). - * - */ - public void addDocumentListener(IDocumentListener listener) { - synchronized (listenerLock) { - - // make sure listener is not already in listening - // (and if it is, print a warning to aid debugging, if needed) - if (!Utilities.contains(fDocumentListeners, listener)) { - int oldSize = 0; - if (fDocumentListeners != null) { - // normally won't be null, but we need to be sure, for - // first - // time through - oldSize = fDocumentListeners.length; - } - int newSize = oldSize + 1; - IDocumentListener[] newListeners = null; - newListeners = new IDocumentListener[newSize]; - if (fDocumentListeners != null) { - System.arraycopy(fDocumentListeners, 0, newListeners, 0, oldSize); - } - // add listener to last position - newListeners[newSize - 1] = listener; - // now switch new for old - fDocumentListeners = newListeners; - } - } - } - - /* - * @see org.eclipse.jface.text.IDocument#addDocumentPartitioningListener(org.eclipse.jface.text.IDocumentPartitioningListener) - * - * Registers the document partitioning listener with the document. After - * registration the IDocumentPartitioningListener is informed about each - * partition change cause by a document manipulation. If a document - * partitioning listener is also a document listener, the following - * notification sequence is guaranteed if a document manipulation changes - * the document partitioning: 1) - * listener.documentAboutToBeChanged(DocumentEvent); 2) - * listener.documentPartitioningChanged(); 3) - * listener.documentChanged(DocumentEvent); If the listener is already - * registered nothing happens. - * - * @see IDocumentPartitioningListener - */ - - public void addDocumentPartitioningListener(IDocumentPartitioningListener listener) { - synchronized (listenerLock) { - - Assert.isNotNull(listener); - if (fDocumentPartitioningListeners == null) { - fDocumentPartitioningListeners = new ArrayList(1); - } - if (!fDocumentPartitioningListeners.contains(listener)) - fDocumentPartitioningListeners.add(listener); - } - } - - /** - * Adds the position to the document's default position category. The - * default category must be specified by the implementer. A position that - * has been added to a position category is updated at each change applied - * to the document. - * - * @exception BadLocationException - * If position is not a valid range in the document - */ - public void addPosition(Position position) throws BadLocationException { - getPositionManager().addPosition(position); - } - - /** - * @see IDocument#addPosition - * @exception BadLocationException - * If position is not a valid range in the document - * @exception BadPositionCategoryException - * If the category is not defined for the document - */ - public void addPosition(String category, Position position) throws BadLocationException, BadPositionCategoryException { - getPositionManager().addPosition(category, position); - } - - /** - * @see IDocument#addPositionCategory - */ - public void addPositionCategory(String category) { - internal_addPositionCategory(category); - } - - /** - * @see IDocument#addPositionUpdater - */ - public void addPositionUpdater(IPositionUpdater updater) { - internal_addPositionUpdater(updater); - } - - /** - * Adds the given document listener as one which is notified before those - * document listeners added with <code>addDocumentListener</code> are - * notified. If the given listener is also registered using - * <code>addDocumentListener</code> it will be notified twice. If the - * listener is already registered nothing happens. - * <p> - * - * This method is not for public use, it may only be called by - * implementers of <code>IDocumentAdapter</code> and only if those - * implementers need to implement <code>IDocumentListener</code>. - * - * @param documentAdapter - * the listener to be added as prenotified document listener - */ - public void addPrenotifiedDocumentListener(IDocumentListener documentAdapter) { - synchronized (listenerLock) { - - if (fPrenotifiedDocumentListeners != null) { - int previousSize = fPrenotifiedDocumentListeners.length; - IDocumentListener[] listeners = new IDocumentListener[previousSize + 1]; - System.arraycopy(fPrenotifiedDocumentListeners, 0, listeners, 0, previousSize); - listeners[previousSize] = documentAdapter; - fPrenotifiedDocumentListeners = listeners; - } - else { - fPrenotifiedDocumentListeners = new IDocumentListener[1]; - fPrenotifiedDocumentListeners[0] = documentAdapter; - } - } - } - - /* - * (non-Javadoc) - * - * @see java.lang.CharSequence#charAt(int) - */ - public char charAt(int arg0) { - try { - return getChar(0); - } - catch (BadLocationException e) { - throw new IndexOutOfBoundsException(); - } - } - - /** - * This form of the API removes all read only positions, as should be done - * we 'setText' is called. Note: an alternative algorithm may simply - * remove the category (and it would get added back in later, if/when - * readonly regions added. - */ - private void clearReadOnly() { - Position[] positions = null; - try { - positions = getPositions(READ_ONLY_REGIONS_CATEGORY); - } - catch (BadPositionCategoryException e) { - Logger.logException("program error: should never occur", e); //$NON-NLS-1$ - } - for (int i = 0; i < positions.length; i++) { - Position position = positions[i]; - // note we don't fire the "about to change" or "changed" events, - // since presumably, text is all going away and being replaced - // anyway. - position.delete(); - } - } - - - public void clearReadOnly(int startOffset, int length) { - // TODO DW I still need to implement smarter algorithm that - // adust existing RO regions, if needed. For now, I'll just - // remove any that overlap. - try { - Position[] positions = getPositions(READ_ONLY_REGIONS_CATEGORY); - for (int i = 0; i < positions.length; i++) { - Position position = positions[i]; - if (position.overlapsWith(startOffset, length)) { - String effectedText = this.get(startOffset, length); - // fDocumentEvent = new DocumentEvent(this, startOffset, - // length, effectedText); - fireReadOnlyAboutToBeChanged(); - position.delete(); - NoChangeEvent noChangeEvent = new NoChangeEvent(this, null, effectedText, startOffset, length); - noChangeEvent.reason = NoChangeEvent.READ_ONLY_STATE_CHANGE; - fireReadOnlyStructuredDocumentEvent(noChangeEvent); - } - } - } - catch (BadPositionCategoryException e) { - // just means no readonly regions been defined yet - // so nothing to do. - } - } - - /** - * Computes the index at which a <code>Position</code> with the - * specified offset would be inserted into the given category. As the - * ordering inside a category only depends on the offset, the index must - * be choosen to be the first of all positions with the same offset. - * - * @param category - * the category in which would be added - * @param offset - * the position offset to be considered - * @return the index into the category - * @exception BadLocationException - * if offset is invalid in this document - * @exception BadPositionCategoryException - * if category is undefined in this document - */ - public int computeIndexInCategory(String category, int offset) throws org.eclipse.jface.text.BadPositionCategoryException, org.eclipse.jface.text.BadLocationException { - return getPositionManager().computeIndexInCategory(category, offset); - } - - /** - * Computes the number of lines in the given text. For a given implementer - * of this interface this method returns the same result as - * <code>set(text); getNumberOfLines()</code>. - * - * @param text - * the text whose number of lines should be computed - * @return the number of lines in the given text - */ - public int computeNumberOfLines(String text) { - return getTracker().computeNumberOfLines(text); - } - - /** - * Computes the partitioning of the given document range using the - * document's partitioner. - * - * @param offset - * the document offset at which the range starts - * @param length - * the length of the document range - * @return a specification of the range's partitioning - * @throws BadLocationException - * @throws BadPartitioningException - */ - public ITypedRegion[] computePartitioning(int offset, int length) throws BadLocationException { - ITypedRegion[] typedRegions = null; - try { - typedRegions = computePartitioning(IStructuredPartitioning.DEFAULT_STRUCTURED_PARTITIONING, offset, length, false); - } - catch (BadPartitioningException e) { - // impossible in this context - throw new Error(e); - } - if (typedRegions == null) { - typedRegions = new ITypedRegion[0]; - } - return typedRegions; - } - - - public ITypedRegion[] computePartitioning(String partitioning, int offset, int length, boolean includeZeroLengthPartitions) throws BadLocationException, BadPartitioningException { - if ((0 > offset) || (0 > length) || (offset + length > getLength())) - throw new BadLocationException(); - - IDocumentPartitioner partitioner = getDocumentPartitioner(partitioning); - - if (partitioner instanceof IDocumentPartitionerExtension2) - return ((IDocumentPartitionerExtension2) partitioner).computePartitioning(offset, length, includeZeroLengthPartitions); - else if (partitioner != null) - return partitioner.computePartitioning(offset, length); - else if (IStructuredPartitioning.DEFAULT_STRUCTURED_PARTITIONING.equals(partitioning)) - return new TypedRegion[]{new TypedRegion(offset, length, DEFAULT_CONTENT_TYPE)}; - else - throw new BadPartitioningException(); - } - - /** - * @see IDocument#containsPosition - */ - public boolean containsPosition(String category, int offset, int length) { - return getPositionManager().containsPosition(category, offset, length); - } - - /** - * @see IDocument#containsPositionCategory - */ - public boolean containsPositionCategory(String category) { - return getPositionManager().containsPositionCategory(category); - } - - public boolean containsReadOnly(int startOffset, int length) { - boolean result = false; - try { - Position[] positions = getPositions(READ_ONLY_REGIONS_CATEGORY); - for (int i = 0; i < positions.length; i++) { - Position position = positions[i]; - if (position.overlapsWith(startOffset, length)) { - result = true; - break; - } - } - } - catch (BadPositionCategoryException e) { - // just means no readonly regions been defined yet - // so obviously false - result = false; - } - return result; - } - - private void executePostNotificationChanges() { - if (fStoppedCount > 0) - return; - while (fPostNotificationChanges != null) { - List changes = fPostNotificationChanges; - fPostNotificationChanges = null; - Iterator e = changes.iterator(); - while (e.hasNext()) { - RegisteredReplace replace = (RegisteredReplace) e.next(); - replace.fReplace.perform(this, replace.fOwner); - } - } - } - - private void fireDocumentAboutToChanged() { - // most DocumentAboutToBeChanged listeners do not anticipate - // DocumentEvent == null. So make sure documentEvent is not - // null. (this should never happen, yet it does sometimes) - if (fDocumentEvent == null) { - fDocumentEvent = new NullDocumentEvent(); - } - - _fireStructuredDocumentAboutToChange(fStructuredDocumentAboutToChangeListeners); - // Note: the docEvent is created in replaceText API! (or set Text) - _fireDocumentAboutToChange(fPrenotifiedDocumentListeners); - notifyDocumentPartitionersAboutToChange(fDocumentEvent); - _fireDocumentAboutToChange(fDocumentListeners); - } - - /** - * Fires the document partitioning changed notification to all registered - * document partitioning listeners. Uses a robust iterator. - * - * @param event - * the document partitioning changed event - * - * @see IDocumentPartitioningListenerExtension2 - */ - protected void fireDocumentPartitioningChanged(DocumentPartitioningChangedEvent event) { - if (fDocumentPartitioningListeners == null || fDocumentPartitioningListeners.size() == 0) - return; - - List list = new ArrayList(fDocumentPartitioningListeners); - Iterator e = list.iterator(); - while (e.hasNext()) { - IDocumentPartitioningListener l = (IDocumentPartitioningListener) e.next(); - if (l instanceof IDocumentPartitioningListenerExtension2) { - IDocumentPartitioningListenerExtension2 extension2 = (IDocumentPartitioningListenerExtension2) l; - extension2.documentPartitioningChanged(event); - } - else if (l instanceof IDocumentPartitioningListenerExtension) { - IDocumentPartitioningListenerExtension extension = (IDocumentPartitioningListenerExtension) l; - extension.documentPartitioningChanged(this, event.getCoverage()); - } - else { - l.documentPartitioningChanged(this); - } - } - - } - - private void fireReadOnlyAboutToBeChanged() { - _fireStructuredDocumentAboutToChange(fStructuredDocumentAboutToChangeListeners); - // Note: the docEvent is created in replaceText API! (or set Text) - // _fireDocumentAboutToChange(fPrenotifiedDocumentListeners); - // _fireDocumentAboutToChange(fDocumentListeners); - } - - private void fireReadOnlyStructuredDocumentEvent(NoChangeEvent event) { - _fireEvent(fStructuredDocumentChangingListeners, event); - _fireEvent(fStructuredDocumentChangedListeners, event); - // _fireDocumentChanged(fPrenotifiedDocumentListeners, event); - // _fireDocumentChanged(fDocumentListeners, event); - // _clearDocumentEvent(); - } - - private void fireStructuredDocumentEvent(NoChangeEvent event) { - _fireEvent(fStructuredDocumentChangingListeners, event); - _fireEvent(fStructuredDocumentChangedListeners, event); - _fireDocumentChanged(fPrenotifiedDocumentListeners, event); - notifyDocumentPartitionersDocumentChanged(event); - _fireDocumentChanged(fDocumentListeners, event); - _clearDocumentEvent(); - } - - private void fireStructuredDocumentEvent(RegionChangedEvent event) { - _fireEvent(fStructuredDocumentChangingListeners, event); - _fireEvent(fStructuredDocumentChangedListeners, event); - _fireDocumentChanged(fPrenotifiedDocumentListeners, event); - notifyDocumentPartitionersDocumentChanged(event); - _fireDocumentChanged(fDocumentListeners, event); - _clearDocumentEvent(); - } - - private void fireStructuredDocumentEvent(RegionsReplacedEvent event) { - _fireEvent(fStructuredDocumentChangingListeners, event); - _fireEvent(fStructuredDocumentChangedListeners, event); - _fireDocumentChanged(fPrenotifiedDocumentListeners, event); - notifyDocumentPartitionersDocumentChanged(event); - _fireDocumentChanged(fDocumentListeners, event); - _clearDocumentEvent(); - } - - private void fireStructuredDocumentEvent(StructuredDocumentRegionsReplacedEvent event) { - _fireEvent(fStructuredDocumentChangingListeners, event); - _fireEvent(fStructuredDocumentChangedListeners, event); - _fireDocumentChanged(fPrenotifiedDocumentListeners, event); - notifyDocumentPartitionersDocumentChanged(event); - _fireDocumentChanged(fDocumentListeners, event); - _clearDocumentEvent(); - } - - /** - * Returns the document's complete text. - */ - public String get() { - return getStore().get(0, getLength()); - } - - /** - * Returns length characters from the document's text starting from the - * specified position. - * - * @throws BadLocationException - * - * @exception BadLocationException - * If the range is not valid in the document - */ - public String get(int offset, int length) { - String result = null; - int myLength = getLength(); - if (0 > offset) - offset = 0; - if (0 > length) - length = 0; - if (offset + length > myLength) { - // first try adjusting length to fit - int lessLength = myLength - offset; - if ((lessLength >= 0) && (offset + lessLength == myLength)) { - length = lessLength; - } - else { - // second, try offset - int moreOffset = myLength - length; - if ((moreOffset >= 0) && (moreOffset + length == myLength)) { - offset = moreOffset; - } - else { - // can happen if myLength is 0. - // no adjustment possible. - result = new String(); - } - } - - } - if (result == null) { - result = getStore().get(offset, length); - } - return result; - } - - public Object getAdapter(Class adapter) { - return Platform.getAdapterManager().getAdapter(this, adapter); - } - - IStructuredDocumentRegion getCachedDocumentRegion() { - IStructuredDocumentRegion result = null; - if (USE_LOCAL_THREAD) { - result = fCurrentDocumnetRegionCache.get(); - } - else { - result = cachedDocumentRegion; - } - return result; - } - - /** - * @see IDocument#getChar - * @exception BadLocationException - * If position is not a valid range in the document - */ - public char getChar(int pos) throws BadLocationException { - char result = 0x00; - try { - result = getStore().get(pos); - } - catch (IndexOutOfBoundsException e) { - throw new BadLocationException(e.getLocalizedMessage()); - } - return result; - } - - /** - * Returns the type of the document partition containing the given - * character position. - */ - public String getContentType(int offset) throws BadLocationException { - return getDocumentPartitioner().getContentType(offset); - } - - - public String getContentType(String partitioning, int offset, boolean preferOpenPartitions) throws BadLocationException, BadPartitioningException { - if ((0 > offset) || (offset > getLength())) - throw new BadLocationException(); - - IDocumentPartitioner partitioner = getDocumentPartitioner(partitioning); - - if (partitioner instanceof IDocumentPartitionerExtension2) - return ((IDocumentPartitionerExtension2) partitioner).getContentType(offset, preferOpenPartitions); - else if (partitioner != null) - return partitioner.getContentType(offset); - else if (IStructuredPartitioning.DEFAULT_STRUCTURED_PARTITIONING.equals(partitioning)) - return DEFAULT_CONTENT_TYPE; - else - throw new BadPartitioningException(); - } - - /* - * This method can be used when this class implements IDocumentExtension4. - * - * @see org.eclipse.jface.text.IDocumentExtension4#getDefaultLineDelimiter() - */ - private String getDefaultLineDelimiter() { - // specific preferred line delimiter - if (preferedDelimiter != null) - return preferedDelimiter; - - - // no line delimiter has been used so just use platform's default - String lineDelimiter = null; - String sysLineDelimiter = PlatformLineDelimiter; - String[] delimiters = getLegalLineDelimiters(); - Assert.isTrue(delimiters.length > 0); - for (int i = 0; i < delimiters.length; i++) { - if (delimiters[i].equals(sysLineDelimiter)) { - lineDelimiter = sysLineDelimiter; - break; - } - } - - // no platform default so just use first legal delimiter - if (lineDelimiter == null) - lineDelimiter = delimiters[0]; - - return lineDelimiter; - } - - /** - * Returns the document's partitioner. - * - * @see IDocumentPartitioner - */ - public IDocumentPartitioner getDocumentPartitioner() { - return getDocumentPartitioner(IDocumentExtension3.DEFAULT_PARTITIONING); - } - - - public IDocumentPartitioner getDocumentPartitioner(String partitioning) { - - IDocumentPartitioner documentPartitioner = null; - if (fDocumentPartitioners != null) { - documentPartitioner = (IDocumentPartitioner) fDocumentPartitioners.get(partitioning); - } - return documentPartitioner; - } - - public EncodingMemento getEncodingMemento() { - return encodingMemento; - } - - public IStructuredDocumentRegion getFirstStructuredDocumentRegion() { - // should we update cachedNode? - // We should to keep consistent philosophy of remembering last - // requested position, - // for efficiency. - setCachedDocumentRegion(firstDocumentRegion); - return firstDocumentRegion; - } - - public IStructuredDocumentRegion getLastStructuredDocumentRegion() { - // should we update cachedNode? - // We should to keep consistent philosophy of remembering last - // requested position, - // for efficiency. - setCachedDocumentRegion(lastDocumentRegion); - return lastDocumentRegion; - } - - /* - * -------------------------- partitions - * ---------------------------------- - */ - public String[] getLegalContentTypes() { - String[] result = null; - try { - result = getLegalContentTypes(IStructuredPartitioning.DEFAULT_STRUCTURED_PARTITIONING); - } - catch (BadPartitioningException e) { - // impossible in this context - throw new Error(e); - } - return result; - } - - public String[] getLegalContentTypes(String partitioning) throws BadPartitioningException { - IDocumentPartitioner partitioner = getDocumentPartitioner(partitioning); - if (partitioner != null) - return partitioner.getLegalContentTypes(); - if (IStructuredPartitioning.DEFAULT_STRUCTURED_PARTITIONING.equals(partitioning)) - return new String[]{DEFAULT_CONTENT_TYPE}; - throw new BadPartitioningException(); - } - - /* - * ------------------ line delimiter conversion - * --------------------------- - */ - public String[] getLegalLineDelimiters() { - return getTracker().getLegalLineDelimiters(); - } - - /** - * @see IDocument#getLength - */ - public int getLength() { - return getStore().getLength(); - } - - /* - * (non-Javadoc) - * - * @see org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocument#getLineDelimiter() - */ - public String getLineDelimiter() { - return getDefaultLineDelimiter(); - } - - /** - * Returns the line delimiter of that line - * - * @exception BadLocationException - * If the line number is invalid in the document - */ - public String getLineDelimiter(int line) throws org.eclipse.jface.text.BadLocationException { - return getTracker().getLineDelimiter(line); - } - - /** - * Returns a description of the specified line. The line is described by - * its offset and its length excluding the line's delimiter. - * - * @param line - * the line of interest - * @return a line description - * @exception BadLocationException - * if the line number is invalid in this document - */ - public org.eclipse.jface.text.IRegion getLineInformation(int line) throws org.eclipse.jface.text.BadLocationException { - return getTracker().getLineInformation(line); - } - - /** - * Returns a description of the line at the given offset. The description - * contains the offset and the length of the line excluding the line's - * delimiter. - * - * @param offset - * the offset whose line should be described - * @return a region describing the line - * @exception BadLocationException - * if offset is invalid in this document - */ - public org.eclipse.jface.text.IRegion getLineInformationOfOffset(int offset) throws org.eclipse.jface.text.BadLocationException { - return getTracker().getLineInformationOfOffset(offset); - } - - /* - * ---------------------- line information - * -------------------------------- - */ - public int getLineLength(int line) throws org.eclipse.jface.text.BadLocationException { - return getTracker().getLineLength(line); - } - - /** - * Determines the offset of the first character of the given line. - * - * @param line - * the line of interest - * @return the document offset - * @exception BadLocationException - * if the line number is invalid in this document - */ - public int getLineOffset(int line) throws org.eclipse.jface.text.BadLocationException { - return getTracker().getLineOffset(line); - } - - public int getLineOfOffset(int offset) { - int result = -1; - try { - result = getTracker().getLineNumberOfOffset(offset); - } - catch (BadLocationException e) { - if (Logger.DEBUG_DOCUMENT) - Logger.log(Logger.INFO, "Dev. Program Info Only: IStructuredDocument::getLineOfOffset: offset out of range, zero assumed. offset = " + offset, e); //$NON-NLS-1$ //$NON-NLS-2$ - result = 0; - } - return result; - } - - /** - * Returns the number of lines in this document - * - * @return the number of lines in this document - */ - public int getNumberOfLines() { - return getTracker().getNumberOfLines(); - } - - /** - * Returns the number of lines which are occupied by a given text range. - * - * @param offset - * the offset of the specified text range - * @param length - * the length of the specified text range - * @return the number of lines occupied by the specified range - * @exception BadLocationException - * if specified range is invalid in this tracker - */ - public int getNumberOfLines(int offset, int length) throws org.eclipse.jface.text.BadLocationException { - return getTracker().getNumberOfLines(offset, length); - } - - /** - * This is public, temporarily, for use by tag lib classes. - */ - public RegionParser getParser() { - if (fParser == null) { - throw new IllegalStateException("IStructuredDocument::getParser. Parser needs to be set before use"); //$NON-NLS-1$ - } - return fParser; - } - - /** - * Returns the document partition in which the position is located. The - * partition is specified as typed region. - */ - public ITypedRegion getPartition(int offset) throws BadLocationException { - ITypedRegion partition = null; - try { - partition = getPartition(IStructuredPartitioning.DEFAULT_STRUCTURED_PARTITIONING, offset, false); - } - catch (BadPartitioningException e) { - throw new Error(e); - } - if (partition == null) { - throw new Error(); - } - return partition; - } - - - public ITypedRegion getPartition(String partitioning, int offset, boolean preferOpenPartitions) throws BadLocationException, BadPartitioningException { - if ((0 > offset) || (offset > getLength())) - throw new BadLocationException(); - ITypedRegion result = null; - - IDocumentPartitioner partitioner = getDocumentPartitioner(partitioning); - - if (partitioner instanceof IDocumentPartitionerExtension2) { - result = ((IDocumentPartitionerExtension2) partitioner).getPartition(offset, preferOpenPartitions); - } - else if (partitioner != null) { - result = partitioner.getPartition(offset); - } - else if (IStructuredPartitioning.DEFAULT_STRUCTURED_PARTITIONING.equals(partitioning)) { - result = new TypedRegion(0, getLength(), DEFAULT_CONTENT_TYPE); - } - else - throw new BadPartitioningException(); - return result; - } - - - public String[] getPartitionings() { - if (fDocumentPartitioners == null) - return new String[0]; - String[] partitionings = new String[fDocumentPartitioners.size()]; - fDocumentPartitioners.keySet().toArray(partitionings); - return partitionings; - } - - /** - * Returns all position categories added to this document. - */ - public String[] getPositionCategories() { - return getPositionManager().getPositionCategories(); - } - - /** - * @return Returns the positionManager. - */ - private GenericPositionManager getPositionManager() { - if (fPositionManager == null) { - fPositionManager = new GenericPositionManager(this); - } - return fPositionManager; - } - - /** - * Returns all Positions of the given position category. - * - * @exception BadPositionCategoryException - * If category is not defined for the document - */ - public Position[] getPositions(String category) throws org.eclipse.jface.text.BadPositionCategoryException { - return getPositionManager().getPositions(category); - } - - /** - * @see IDocument#getPositionUpdaters - */ - public IPositionUpdater[] getPositionUpdaters() { - return getPositionManager().getPositionUpdaters(); - } - - /** - * This method can return null, which is the case if the offset is just - * before or just after the existing text. Compare with - * getNodeAtCharacterOffset. - */ - public IStructuredDocumentRegion getRegionAtCharacterOffset(int offset) { - IStructuredDocumentRegion result = null; - - // FIXME: need to synch on 'cachedRegion' (but since that's a - // constantly changing object, we - // can't, so need to add a "region_lock" object, and use it here, and - // in re-parser. - // Oh, and need to make sure, after synch, that the region is not - // deleted, and if so, I guess go back - // to the beginning! - - // cached node can be null when document is empty - IStructuredDocumentRegion potentialCachedRegion = getCachedDocumentRegion(); - if (potentialCachedRegion != null) { - - // - - // if we already have the right node, return that. - if (potentialCachedRegion.containsOffset(offset)) { - result = potentialCachedRegion; - } - else { - // first, find out what direction to go, relative to - // cachedNode. - // negative means "towards the front" of the file, - // postitive - // means - // towards the end. - int direction = offset - potentialCachedRegion.getStart(); - if (direction < 0) { - // search towards beginning - while (!potentialCachedRegion.containsOffset(offset)) { - IStructuredDocumentRegion tempNode = potentialCachedRegion.getPrevious(); - if (tempNode == null) { - break; - } - else { - potentialCachedRegion = tempNode; - } - } - } - else { - // search towards end - // There is a legitamat condition where the - // offset will not be contained in any node, - // which is if the offset is just past the last - // character of text. - // And, we must gaurd against setting cachedNode to - // null! - while (!potentialCachedRegion.containsOffset(offset)) { - IStructuredDocumentRegion tempNode = potentialCachedRegion.getNext(); - if (tempNode == null) - break; - else - potentialCachedRegion = tempNode; - } - } - } - result = potentialCachedRegion; - } - // just to be doubly sure we never assign null to an already valid - // cachedRegion. - // I believe any time 'result' is null at this point, that just means - // we have an - // empty document, and the cachedRegion is already null, but we check - // and print - // warning, just so during development we be sure we never accidently - // break this assumption. - if (result != null) - setCachedDocumentRegion(result); - else if (getCachedDocumentRegion() != null) { - throw new IllegalStateException("Program Error: no region could be found to cache, but cache was non null. Indicates corrupted model or region list"); //$NON-NLS-1$ - } - - return result; - } - - public IStructuredDocumentRegionList getRegionList() { - CoreNodeList result = null; - if (getCachedDocumentRegion() == null) - result = new CoreNodeList(null); - else - result = new CoreNodeList(getFirstStructuredDocumentRegion()); - - return result; - } - - - public IStructuredDocumentRegion[] getStructuredDocumentRegions() { - return getStructuredDocumentRegions(0, getLength()); - } - - /** - * <p> - * In the case of 0 length, the <code>IStructuredDocumentRegion</code> - * at the character offset is returened. In other words, the region to the - * right of the caret is returned. except for at the end of the document, - * then the last region is returned. - * </p> - * <p> - * Otherwise all the regions "inbetween" the indicated range are returned, - * including the regions which overlap the region. - * </p> - * - * <br> - * eg. - * <p> - * <br> - * eg. - * - * <pre> - * <html>[<head></head>]</html> returns <head>,</head> - * </pre> - * <pre> - * <ht[ml><head></he]ad></html> returns <html>,<head>,</head> - * </pre> - * - * <pre> - * <html>[<head></head>]</html> returns <head>,</head> - * </pre> - * <pre> - * <ht[ml><head></he]ad></html> returns <html>,<head>,</head> - * </pre> - * - * </p> - */ - public IStructuredDocumentRegion[] getStructuredDocumentRegions(int start, int length) { - - if (length < 0) - throw new IllegalArgumentException("can't have negative length"); //$NON-NLS-1$ - - // this will make the right edge of the range point into the selection - // eg. <html>[<head></head>]</html> - // will return <head>,</head> instead of <head>,</head>,</html> - if (length > 0) - length--; - - List results = new ArrayList(); - - // start thread safe block - try { - acquireLock(); - - IStructuredDocumentRegion currentRegion = getRegionAtCharacterOffset(start); - IStructuredDocumentRegion endRegion = getRegionAtCharacterOffset(start + length); - while (currentRegion != endRegion && currentRegion != null) { - results.add(currentRegion); - currentRegion = currentRegion.getNext(); - } - // need to add that last end region - // can be null in the case of an empty document - if (endRegion != null) - results.add(endRegion); - } - finally { - releaseLock(); - } - // end thread safe block - - return (IStructuredDocumentRegion[]) results.toArray(new IStructuredDocumentRegion[results.size()]); - } - - /** - * was made public for easier testing. Normally should never be used by - * client codes. - */ - public IStructuredTextReParser getReParser() { - if (fReParser == null) { - fReParser = new StructuredDocumentReParser(); - fReParser.setStructuredDocument(this); - } - return fReParser; - } - - private ITextStore getStore() { - Assert.isNotNull(fStore); - return fStore; - } - - public String getText() { - String result = get(); - return result; - } - - /** - * Returns the document's line tracker. Assumes that the document has been - * initialized with a line tracker. - * - * @return the document's line tracker - */ - private ILineTracker getTracker() { - Assert.isNotNull(fTracker); - return fTracker; - } - - public IStructuredTextUndoManager getUndoManager() { - if (fUndoManager == null) { - fUndoManager = new StructuredTextUndoManager(); - } - return fUndoManager; - } - - void initializeFirstAndLastDocumentRegion() { - // cached Node must also be first, at the initial point. Only - // valid - // to call this method right after the first parse. - // - // when starting afresh, our cachedNode should be our firstNode, - // so be sure to initialize the firstNode - firstDocumentRegion = getCachedDocumentRegion(); - // be sure to use 'getNext' for this initial finding of the last - // node, - // since the implementation of node.getLastNode may simply call - // structuredDocument.getLastStructuredDocumentRegion! - IStructuredDocumentRegion aNode = firstDocumentRegion; - if (aNode == null) { - // defect 254607: to handle empty documents right, if - // firstnode is - // null, make sure last node is null too - lastDocumentRegion = null; - } - else { - while (aNode != null) { - lastDocumentRegion = aNode; - aNode = aNode.getNext(); - } - } - } - - /** - * @see IDocument#insertPositionUpdater - */ - public void insertPositionUpdater(IPositionUpdater updater, int index) { - getPositionManager().insertPositionUpdater(updater, index); - } - - private void internal_addPositionCategory(String category) { - getPositionManager().addPositionCategory(category); - } - - private void internal_addPositionUpdater(IPositionUpdater updater) { - getPositionManager().addPositionUpdater(updater); - } - - private void internal_setParser(RegionParser newParser) { - fParser = newParser; - } - - String internalGet(int offset, int length) { - String result = null; - // int myLength = getLength(); - // if ((0 > offset) || (0 > length) || (offset + length > myLength)) - // throw new BadLocationException(); - result = getStore().get(offset, length); - return result; - } - - /** - * @param requester - * @param start - * @param replacementLength - * @param changes - * @return - */ - private StructuredDocumentEvent internalReplaceText(Object requester, int start, int replacementLength, String changes, boolean ignoreReadOnlySettings) { - StructuredDocumentEvent result = null; - - stopPostNotificationProcessing(); - if (changes == null) - changes = ""; //$NON-NLS-1$ - // - if (Debug.debugStructuredDocument) - System.out.println(getClass().getName() + "::replaceText(" + start + "," + replacementLength + "," + changes + ")"); //$NON-NLS-4$//$NON-NLS-3$//$NON-NLS-2$//$NON-NLS-1$ - if (Debug.perfTestStructuredDocumentOnly || Debug.perfTest || Debug.perfTestRawStructuredDocumentOnly) { - startStreamTime = System.currentTimeMillis(); - } - try { - // Note: event must be computed before 'fire' method called - fDocumentEvent = new DocumentEvent(this, start, replacementLength, changes); - fireDocumentAboutToChanged(); - - try { - acquireLock(); - - if (!ignoreReadOnlySettings && (containsReadOnly(start, replacementLength))) { - NoChangeEvent noChangeEvent = new NoChangeEvent(this, requester, changes, start, replacementLength); - noChangeEvent.reason = NoChangeEvent.READ_ONLY_STATE_CHANGE; - result = noChangeEvent; - } - else { - result = updateModel(requester, start, replacementLength, changes); - } - } - finally { - releaseLock(); - } - - - if (Debug.perfTestRawStructuredDocumentOnly || Debug.perfTest) { - long stopStreamTime = System.currentTimeMillis(); - System.out.println("\n\t\t\t\t Time for IStructuredDocument raw replaceText: " + (stopStreamTime - startStreamTime)); //$NON-NLS-1$ - } - if (Debug.debugStructuredDocument) { - System.out.println("event type returned by replaceTextWithNoDebuggingThread: " + result); //$NON-NLS-1$ - } - } - finally { - // FUTURE_TO_DO: implement callback mechanism? to avoid instanceof - // and casting - // fireStructuredDocumentEvent must be called in order to end - // documentAboutToBeChanged state - if (result == null) { - // result should not be null, but if an exception was thrown, - // it will be - // so send a noChangeEvent and log the problem - NoChangeEvent noChangeEvent = new NoChangeEvent(this, requester, changes, start, replacementLength); - noChangeEvent.reason = NoChangeEvent.NO_EVENT; - fireStructuredDocumentEvent(noChangeEvent); - Logger.log(Logger.ERROR, "Program Error: invalid structured document event"); //$NON-NLS-1$ - } - else { - if (result instanceof RegionChangedEvent) { - fireStructuredDocumentEvent((RegionChangedEvent) result); - } - else { - if (result instanceof RegionsReplacedEvent) { - fireStructuredDocumentEvent((RegionsReplacedEvent) result); - } - else { - if (result instanceof StructuredDocumentRegionsReplacedEvent) { - // probably more efficient to mark old regions as - // 'deleted' at the time - // that are determined to be deleted, but I'll do - // here - // in then central spot - // for programming ease. - updateDeletedFields((StructuredDocumentRegionsReplacedEvent) result); - fireStructuredDocumentEvent((StructuredDocumentRegionsReplacedEvent) result); - } - else { - if (result instanceof NoChangeEvent) { - fireStructuredDocumentEvent((NoChangeEvent) result); - } - else { - // if here, this means a new event was created - // and not handled here - // just send a no event until this issue is - // resolved. - NoChangeEvent noChangeEvent = new NoChangeEvent(this, requester, changes, start, replacementLength); - noChangeEvent.reason = NoChangeEvent.NO_EVENT; - fireStructuredDocumentEvent(noChangeEvent); - Logger.log(Logger.INFO, "Program Error: unexpected structured document event: " + result); //$NON-NLS-1$ - } - } - } - } - } - if (Debug.perfTest || Debug.perfTestStructuredDocumentOnly) { - long stopStreamTime = System.currentTimeMillis(); - System.out.println("\n\t\t\t\t Total Time for IStructuredDocument event signaling/processing in replaceText: " + (stopStreamTime - startStreamTime)); //$NON-NLS-1$ - } - resumePostNotificationProcessing(); - } - return result; - } - - /* - * (non-Javadoc) - * - * @see java.lang.CharSequence#length() - */ - public int length() { - - return getLength(); - } - - public void makeReadOnly(int startOffset, int length) { - - // doesn't make sense to have a readonly region of 0 length, - // so we'll ignore those requests - if (length <= 0) - return; - String affectedText = this.get(startOffset, length); - // a document event for "read only" change ... must - // be followed by "no change" structuredDocument event - // fDocumentEvent = new DocumentEvent(this, startOffset, length, - // affectedText); - fireReadOnlyAboutToBeChanged(); - // if (containsReadOnly(startOffset, length)) { - // adjustReadOnlyRegions(startOffset, length); - // } else { - // we can blindly add category, since no harm done if already - // exists. - addPositionCategory(READ_ONLY_REGIONS_CATEGORY); - Position newPosition = new Position(startOffset, length); - try { - addPosition(READ_ONLY_REGIONS_CATEGORY, newPosition); - // FIXME: need to change API to pass in requester, so this event - // can be - // created correctly, instead of using null. - NoChangeEvent noChangeEvent = new NoChangeEvent(this, null, affectedText, startOffset, length); - noChangeEvent.reason = NoChangeEvent.READ_ONLY_STATE_CHANGE; - fireReadOnlyStructuredDocumentEvent(noChangeEvent); - } - catch (BadLocationException e) { - // for now, log and ignore. Perhaps later we - // could adjust to handle some cases? - Logger.logException(("could not create readonly region at " + startOffset + " to " + length), e); //$NON-NLS-1$ //$NON-NLS-2$ - } - catch (BadPositionCategoryException e) { - // should never occur, since we add category - Logger.logException(e); - } - } - - public IStructuredDocument newInstance() { - IStructuredDocument newInstance = StructuredDocumentFactory.getNewStructuredDocumentInstance(getParser().newInstance()); - ((BasicStructuredDocument) newInstance).setReParser(getReParser().newInstance()); - if (getDocumentPartitioner() instanceof StructuredTextPartitioner) { - newInstance.setDocumentPartitioner(((StructuredTextPartitioner) getDocumentPartitioner()).newInstance()); - newInstance.getDocumentPartitioner().connect(newInstance); - } - newInstance.setLineDelimiter(getLineDelimiter()); - if (getEncodingMemento() != null) { - newInstance.setEncodingMemento((EncodingMemento) getEncodingMemento().clone()); - } - return newInstance; - } - - /* - * (non-Javadoc) - * - * @see org.eclipse.wst.sse.core.internal.text.IRegionComparible#regionMatches(int, - * int, java.lang.String) - */ - public boolean regionMatches(int offset, int length, String stringToCompare) { - boolean result = false; - ITextStore store = getStore(); - if (store instanceof IRegionComparible) { - result = ((IRegionComparible) store).regionMatches(offset, length, stringToCompare); - } - else { - result = get(offset, length).equals(stringToCompare); - } - return result; - } - - public boolean regionMatchesIgnoreCase(int offset, int length, String stringToCompare) { - boolean result = false; - ITextStore store = getStore(); - if (store instanceof IRegionComparible) { - result = ((IRegionComparible) store).regionMatchesIgnoreCase(offset, length, stringToCompare); - } - else { - result = get(offset, length).equalsIgnoreCase(stringToCompare); - } - return result; - } - - /* - * (non-Javadoc) - * - * @see org.eclipse.jface.text.IDocumentExtension#registerPostNotificationReplace(org.eclipse.jface.text.IDocumentListener, - * org.eclipse.jface.text.IDocumentExtension.IReplace) - */ - public void registerPostNotificationReplace(IDocumentListener owner, IDocumentExtension.IReplace replace) { - if (fAcceptPostNotificationReplaces) { - if (fPostNotificationChanges == null) - fPostNotificationChanges = new ArrayList(1); - fPostNotificationChanges.add(new RegisteredReplace(owner, replace)); - } - } - - protected void releaseLock() { - // do nothing here in super class - } - - public void removeDocumentAboutToChangeListener(IModelAboutToBeChangedListener listener) { - synchronized (listenerLock) { - - if ((fStructuredDocumentAboutToChangeListeners != null) && (listener != null)) { - // if its not in the listeners, we'll ignore the request - if (Utilities.contains(fStructuredDocumentAboutToChangeListeners, listener)) { - int oldSize = fStructuredDocumentAboutToChangeListeners.length; - int newSize = oldSize - 1; - Object[] newListeners = new Object[newSize]; - int index = 0; - for (int i = 0; i < oldSize; i++) { - if (fStructuredDocumentAboutToChangeListeners[i] == listener) { // ignore - } - else { - // copy old to new if its not the one we are - // removing - newListeners[index++] = fStructuredDocumentAboutToChangeListeners[i]; - } - } - // now that we have a new array, let's switch it for the - // old - // one - fStructuredDocumentAboutToChangeListeners = newListeners; - } - } - } - } - - /** - * removeModelChangedListener method comment. - */ - public void removeDocumentChangedListener(IStructuredDocumentListener listener) { - synchronized (listenerLock) { - - if ((fStructuredDocumentChangedListeners != null) && (listener != null)) { - // if its not in the listeners, we'll ignore the request - if (Utilities.contains(fStructuredDocumentChangedListeners, listener)) { - int oldSize = fStructuredDocumentChangedListeners.length; - int newSize = oldSize - 1; - Object[] newListeners = new Object[newSize]; - int index = 0; - for (int i = 0; i < oldSize; i++) { - if (fStructuredDocumentChangedListeners[i] == listener) { // ignore - } - else { - // copy old to new if its not the one we are - // removing - newListeners[index++] = fStructuredDocumentChangedListeners[i]; - } - } - // now that we have a new array, let's switch it for the - // old - // one - fStructuredDocumentChangedListeners = newListeners; - } - } - } - } - - public void removeDocumentChangingListener(IStructuredDocumentListener listener) { - synchronized (listenerLock) { - - if ((fStructuredDocumentChangingListeners != null) && (listener != null)) { - // if its not in the listeners, we'll ignore the request - if (Utilities.contains(fStructuredDocumentChangingListeners, listener)) { - int oldSize = fStructuredDocumentChangingListeners.length; - int newSize = oldSize - 1; - Object[] newListeners = new Object[newSize]; - int index = 0; - for (int i = 0; i < oldSize; i++) { - if (fStructuredDocumentChangingListeners[i] == listener) { // ignore - } - else { - // copy old to new if its not the one we are - // removing - newListeners[index++] = fStructuredDocumentChangingListeners[i]; - } - } - // now that we have a new array, let's switch it for the - // old - // one - fStructuredDocumentChangingListeners = newListeners; - } - } - } - } - - public void removeDocumentListener(IDocumentListener listener) { - synchronized (listenerLock) { - - if ((fDocumentListeners != null) && (listener != null)) { - // if its not in the listeners, we'll ignore the request - if (Utilities.contains(fDocumentListeners, listener)) { - int oldSize = fDocumentListeners.length; - int newSize = oldSize - 1; - IDocumentListener[] newListeners = new IDocumentListener[newSize]; - int index = 0; - for (int i = 0; i < oldSize; i++) { - if (fDocumentListeners[i] == listener) { // ignore - } - else { - // copy old to new if its not the one we are - // removing - newListeners[index++] = fDocumentListeners[i]; - } - } - // now that we have a new array, let's switch it for the - // old - // one - fDocumentListeners = newListeners; - } - } - } - } - - /* - * @see org.eclipse.jface.text.IDocument#removeDocumentPartitioningListener(org.eclipse.jface.text.IDocumentPartitioningListener) - */ - public void removeDocumentPartitioningListener(IDocumentPartitioningListener listener) { - synchronized (listenerLock) { - - Assert.isNotNull(listener); - if (fDocumentPartitioningListeners != null) - fDocumentPartitioningListeners.remove(listener); - } - } - - /** - * Removes the given <code>Position</code> from the document's default - * position category. The default position category is to be defined by - * the implementers. If the position is not part of the document's default - * category nothing happens. - */ - public void removePosition(Position position) { - getPositionManager().removePosition(position); - } - - /** - * @see IDocument#removePosition - * @exception BadPositionCategoryException - * If the category is not defined for the document - */ - public void removePosition(String category, Position position) throws BadPositionCategoryException { - getPositionManager().removePosition(category, position); - } - - /** - * @see IDocument#removePositionCategory - * @exception BadPositionCategoryException - * If the category is not defined for the document - */ - public void removePositionCategory(String category) throws BadPositionCategoryException { - getPositionManager().removePositionCategory(category); - } - - /** - * @see IDocument#removePositionUpdater - */ - public void removePositionUpdater(IPositionUpdater updater) { - getPositionManager().removePositionUpdater(updater); - } - - /** - * Removes the given document listener from teh document's list of - * prenotified document listeners. If the listener is not registered with - * the document nothing happens. - * <p> - * - * This method is not for public use, it may only be called by - * implementers of <code>IDocumentAdapter</code> and only if those - * implementers need to implement <code>IDocumentListener</code>. - * - * @param documentAdapter - * the listener to be removed - * - * @see #addPrenotifiedDocumentListener(IDocumentListener) - */ - public void removePrenotifiedDocumentListener(org.eclipse.jface.text.IDocumentListener documentAdapter) { - synchronized (listenerLock) { - - if (Utilities.contains(fPrenotifiedDocumentListeners, documentAdapter)) { - int previousSize = fPrenotifiedDocumentListeners.length; - if (previousSize > 1) { - IDocumentListener[] listeners = new IDocumentListener[previousSize - 1]; - int previousIndex = 0; - int newIndex = 0; - while (previousIndex < previousSize) { - if (fPrenotifiedDocumentListeners[previousIndex] != documentAdapter) - listeners[newIndex++] = fPrenotifiedDocumentListeners[previousIndex]; - previousIndex++; - } - fPrenotifiedDocumentListeners = listeners; - } - else { - fPrenotifiedDocumentListeners = null; - } - } - } - } - - /** - * This method is for INTERNAL USE ONLY and is NOT API. - * - * Rebuilds the StructuredDocumentRegion chain from the existing text. - * FileBuffer support does not allow clients to know the document's - * location before the text contents are set. - * - * @see set(String) - */ - public void reparse(Object requester) { - stopPostNotificationProcessing(); - clearReadOnly(); - - acquireLock(); - try { - CharSequenceReader subSetTextStoreReader = new CharSequenceReader((CharSequence) getStore(), 0, getStore().getLength()); - resetParser(subSetTextStoreReader, 0); - // - setCachedDocumentRegion(getParser().getDocumentRegions()); - // when starting afresh, our cachedNode should be our firstNode, - // so be sure to initialize the firstNode and lastNode - initializeFirstAndLastDocumentRegion(); - StructuredDocumentRegionIterator.setParentDocument(getCachedDocumentRegion(), this); - } - finally { - releaseLock(); - } - - resumePostNotificationProcessing(); - } - - /** - * @see IDocument#replace - * @exception BadLocationException - * If position is not a valid range in the document - */ - public void replace(int pos, int length, String string) throws BadLocationException { - if (Debug.displayWarnings) { - System.out.println("Note: IStructuredDocument::replace(int, int, String) .... its better to use replaceText(source, string, int, int) API for structuredDocument updates"); //$NON-NLS-1$ - } - replaceText(this, pos, length, string); - } - - /** - * Replace the text with "newText" starting at position "start" for a - * length of "replaceLength". - * <p> - * - * @param start - * start offset of text to replace None of the offsets include - * delimiters of preceeding lines. Offset 0 is the first - * character of the document. - * @param replaceLength - * start offset of text to replace - * @param newText - * start offset of text to replace - * <p> - * Implementors have to notify TextChanged listeners after the - * content has been updated. The TextChangedEvent should be set - * as follows: - * - * event.type = SWT.TextReplaced event.start = start of the replaced text - * event.numReplacedLines = number of replaced lines event.numNewLines = - * number of new lines event.replacedLength = length of the replaced text - * event.newLength = length of the new text - * - * NOTE: numNewLines is the number of inserted lines and numReplacedLines - * is the number of deleted lines based on the change that occurs - * visually. For example: - * - * replacedText newText numReplacedLines numNewLines "" "\n" 0 1 "\n\n" - * "a" 2 0 "a" "\n\n" 0 2 - */ - /** - * One of the APIs to manipulate the IStructuredDocument in terms of text. - */ - public StructuredDocumentEvent replaceText(Object requester, int start, int replacementLength, String changes) { - return replaceText(requester, start, replacementLength, changes, false); - } - - public StructuredDocumentEvent replaceText(Object requester, int start, int replacementLength, String changes, boolean ignoreReadOnlySettings) { - return internalReplaceText(requester, start, replacementLength, changes, ignoreReadOnlySettings); - } - - void resetParser(int startOffset, int endOffset) { - - RegionParser parser = getParser(); - ITextStore textStore = getStore(); - if (textStore instanceof CharSequence) { - CharSequenceReader subSetTextStoreReader = new CharSequenceReader((CharSequence) textStore, startOffset, endOffset - startOffset); - parser.reset(subSetTextStoreReader, startOffset); - } - else { - String newNodeText = get(startOffset, endOffset - startOffset); - parser.reset(newNodeText, startOffset); - - } - - } - - void resetParser(Reader reader, int startOffset) { - RegionParser parser = getParser(); - parser.reset(reader, startOffset); - } - - /* - * (non-Javadoc) - * - * @see org.eclipse.jface.text.IDocumentExtension#resumePostNotificationProcessing() - */ - public void resumePostNotificationProcessing() { - --fStoppedCount; - if (fStoppedCount == 0 && fReentranceCount == 0) - executePostNotificationChanges(); - } - - /** - * @deprecated in superclass in 3.0 - use a FindReplaceDocumentAdapter - * directly - * @see IDocument#search - */ - public int search(int startPosition, String findString, boolean forwardSearch, boolean caseSensitive, boolean wholeWord) throws BadLocationException { - // (dmw) I added this warning, to know if still being used. I'm not - // sure it - // works as expected any longer. - // but the warning should be removed, once know. - Logger.log(Logger.INFO, "WARNING: using unsupported deprecated method 'search'"); //$NON-NLS-1$ - int offset = -1; - IRegion match = new FindReplaceDocumentAdapter(this).find(startPosition, findString, forwardSearch, caseSensitive, wholeWord, false); - if (match != null) { - offset = match.getOffset(); - } - return offset; - } - - /** - * @see IDocument#setText - */ - public void set(String string) { - if (Debug.displayInfo) { - System.out.println("Note: IStructuredDocument::setText(String) .... its better to use setText(source, string) API for structuredDocument updates"); //$NON-NLS-1$ - } - setText(null, string); - } - - /** - * This may be marked public, but should be packaged protected, once - * refactoring is complete (in other words, not for client use). - */ - public void setCachedDocumentRegion(IStructuredDocumentRegion structuredRegion) { - if (USE_LOCAL_THREAD) { - fCurrentDocumnetRegionCache.set(structuredRegion); - } - else { - cachedDocumentRegion = structuredRegion; - } - } - - /** - * Sets the document's partitioner. - * - * @see IDocumentPartitioner - */ - public void setDocumentPartitioner(IDocumentPartitioner partitioner) { - setDocumentPartitioner(IDocumentExtension3.DEFAULT_PARTITIONING, partitioner); - } - - - public void setDocumentPartitioner(String partitioning, IDocumentPartitioner partitioner) { - if (partitioner == null) { - if (fDocumentPartitioners != null) { - fDocumentPartitioners.remove(partitioning); - if (fDocumentPartitioners.size() == 0) - fDocumentPartitioners = null; - } - } - else { - if (fDocumentPartitioners == null) - fDocumentPartitioners = new HashMap(); - fDocumentPartitioners.put(partitioning, partitioner); - } - DocumentPartitioningChangedEvent event = new DocumentPartitioningChangedEvent(this); - event.setPartitionChange(partitioning, 0, getLength()); - fireDocumentPartitioningChanged(event); - } - - public void setEncodingMemento(EncodingMemento encodingMemento) { - this.encodingMemento = encodingMemento; - } - - void setFirstDocumentRegion(IStructuredDocumentRegion region) { - firstDocumentRegion = region; - - } - - /* - * This method can be used when this class implements IDocumentExtension4. - * - * @see org.eclipse.jface.text.IDocumentExtension4#setInitialLineDelimiter(String) - */ - private void setInitialLineDelimiter(String delimiter) { - // make sure our preferred delimiter is - // one of the legal ones - if (Utilities.containsString(getLegalLineDelimiters(), delimiter)) { - preferedDelimiter = delimiter; - } - else { - if (Logger.DEBUG_DOCUMENT) - Logger.log(Logger.INFO, "Attempt to set linedelimiter to non-legal delimiter"); //$NON-NLS-1$ //$NON-NLS-2$ - preferedDelimiter = PlatformLineDelimiter; - } - } - - void setLastDocumentRegion(IStructuredDocumentRegion region) { - lastDocumentRegion = region; - - } - - /* - * (non-Javadoc) - * - * @see org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocument#setLineDelimiter(java.lang.String) - */ - public void setLineDelimiter(String delimiter) { - setInitialLineDelimiter(delimiter); - } - - /** - * Sets the document's line tracker. Must be called at the beginning of - * the constructor. - * - * @param tracker - * the document's line tracker - */ - private void setLineTracker(ILineTracker tracker) { - fTracker = tracker; - } - - public void setParser(RegionParser newParser) { - internal_setParser(newParser); - } - - /** - * @param positionManager - * The positionManager to set. - */ - // TODO: make private is needed, else remove - void setPositionManager(GenericPositionManager positionManager) { - fPositionManager = positionManager; - } - - /** - * - */ - public void setReParser(IStructuredTextReParser newReParser) { - fReParser = newReParser; - if (fReParser != null) { - fReParser.setStructuredDocument(this); - } - } - - /** - * One of the APIs to manipulate the IStructuredDocument in terms of text. - */ - public StructuredDocumentEvent setText(Object requester, String theString) { - - StructuredDocumentEvent result = null; - - result = replaceText(requester, 0, getLength(), theString, true); - - return result; - } - - /** - * Sets the document's text store. Must be called at the beginning of the - * constructor. - * - * @param store - * the document's text store - */ - private void setTextStore(ITextStore store) { - fStore = store; - } - - public void setUndoManager(IStructuredTextUndoManager undoManager) { - - // if the undo manager has already been set, then - // fail fast, since changing the undo manager will lead - // to unusual results (or at least loss of undo stack). - if (fUndoManager != null && fUndoManager != undoManager) { - throw new IllegalArgumentException("can not change undo manager once its been set"); //$NON-NLS-1$ - } - else { - fUndoManager = undoManager; - } - } - - - public void startSequentialRewrite(boolean normalized) { - ITextStore store = new SequentialRewriteTextStore(getStore()); - setTextStore(store); - } - - /* - * (non-Javadoc) - * - * @see org.eclipse.jface.text.IDocumentExtension#stopPostNotificationProcessing() - */ - public void stopPostNotificationProcessing() { - ++fStoppedCount; - } - - - public void stopSequentialRewrite() { - if (getStore() instanceof SequentialRewriteTextStore) { - SequentialRewriteTextStore srws = (SequentialRewriteTextStore) getStore(); - ITextStore source = srws.getSourceStore(); - setTextStore(source); - srws.dispose(); - } - } - - /* - * (non-Javadoc) - * - * @see java.lang.CharSequence#subSequence(int, int) - */ - public CharSequence subSequence(int arg0, int arg1) { - return get(arg0, arg1); - } - - /** - * @param result - */ - private void updateDeletedFields(StructuredDocumentRegionsReplacedEvent event) { - IStructuredDocumentRegionList oldRegions = event.getOldStructuredDocumentRegions(); - for (int i = 0; i < oldRegions.getLength(); i++) { - IStructuredDocumentRegion structuredDocumentRegion = oldRegions.item(i); - structuredDocumentRegion.setDeleted(true); - } - - } - - /** - * Called by re-parser. Note: this method may be "public" but should only - * be called by re-parsers in the right circumstances. - */ - public void updateDocumentData(int start, int lengthToReplace, String changes) { - stopPostNotificationProcessing(); - getStore().replace(start, lengthToReplace, changes); - try { - getTracker().replace(start, lengthToReplace, changes); - } - - catch (BadLocationException e) { - // should be impossible here, but will log for now - Logger.logException(e); - } - if (fPositionManager != null) { - fPositionManager.updatePositions(new DocumentEvent(this, start, lengthToReplace, changes)); - } - resumePostNotificationProcessing(); - } - - private StructuredDocumentEvent updateModel(Object requester, int start, int lengthToReplace, String changes) { - StructuredDocumentEvent result = null; - IStructuredTextReParser reParser = getReParser(); - // initialize the IStructuredTextReParser with the standard data - // that's - // always needed - reParser.initialize(requester, start, lengthToReplace, changes); - result = reParser.reparse(); - // if result is null at this point, then there must be an error, since - // even if there - // was no change (either disallow due to readonly, or a person pasted - // the same thing - // they had selected) then a "NoChange" event should have been fired. - Assert.isNotNull(result, "no structuredDocument event was created in IStructuredDocument::updateStructuredDocument"); //$NON-NLS-1$ - return result; - } - - /* - * (non-Javadoc) - * - * @see org.eclipse.wst.sse.core.internal.provisional.document.IEncodedDocument#getPreferredLineDelimiter() - */ - public String getPreferredLineDelimiter() { - return getDefaultLineDelimiter(); - } - - /* - * (non-Javadoc) - * - * @see org.eclipse.wst.sse.core.internal.provisional.document.IEncodedDocument#setPreferredLineDelimiter(java.lang.String) - */ - public void setPreferredLineDelimiter(String probableLineDelimiter) { - setInitialLineDelimiter(probableLineDelimiter); - - } -} |