X-Git-Url: http://secure.phpeclipse.com

diff --git a/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/viewsupport/SelectionListenerWithASTManager.java b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/viewsupport/SelectionListenerWithASTManager.java
deleted file mode 100644
index 682852d..0000000
--- a/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/viewsupport/SelectionListenerWithASTManager.java
+++ /dev/null
@@ -1,247 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2000, 2005 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 net.sourceforge.phpdt.internal.ui.viewsupport;
-
-import java.util.HashMap;
-import java.util.Map;
-
-import org.eclipse.core.runtime.IProgressMonitor;
-import org.eclipse.core.runtime.IStatus;
-import org.eclipse.core.runtime.NullProgressMonitor;
-import org.eclipse.core.runtime.OperationCanceledException;
-import org.eclipse.core.runtime.Status;
-import org.eclipse.core.runtime.jobs.Job;
-import org.eclipse.jface.text.ITextSelection;
-import org.eclipse.jface.util.ListenerList;
-import org.eclipse.jface.viewers.IPostSelectionProvider;
-import org.eclipse.jface.viewers.ISelection;
-import org.eclipse.jface.viewers.ISelectionChangedListener;
-import org.eclipse.jface.viewers.ISelectionProvider;
-import org.eclipse.jface.viewers.SelectionChangedEvent;
-import org.eclipse.ui.texteditor.ITextEditor;
-
-/**
- * Infrastructure to share an AST for editor post selection listeners.
- */
-public class SelectionListenerWithASTManager {
-
-	private static SelectionListenerWithASTManager fgDefault;
-
-	/**
-	 * @return Returns the default manager instance.
-	 */
-	public static SelectionListenerWithASTManager getDefault() {
-		if (fgDefault == null) {
-			fgDefault = new SelectionListenerWithASTManager();
-		}
-		return fgDefault;
-	}
-
-	private final static class PartListenerGroup {
-		private ITextEditor fPart;
-
-		private ISelectionChangedListener fSelectionListener,
-				fPostSelectionListener;
-
-		private Job fCurrentJob;
-
-		private ListenerList fAstListeners;
-
-		/**
-		 * Lock to avoid having more than one calculateAndInform job in
-		 * parallel. Only jobs may synchronize on this as otherwise deadlocks
-		 * are possible.
-		 */
-		private final Object fJobLock = new Object();
-
-		public PartListenerGroup(ITextEditor part) {
-			fPart = part;
-			fCurrentJob = null;
-			fAstListeners = new ListenerList();
-
-			fSelectionListener = new ISelectionChangedListener() {
-				public void selectionChanged(SelectionChangedEvent event) {
-					ISelection selection = event.getSelection();
-					if (selection instanceof ITextSelection) {
-						fireSelectionChanged((ITextSelection) selection);
-					}
-				}
-			};
-
-			fPostSelectionListener = new ISelectionChangedListener() {
-				public void selectionChanged(SelectionChangedEvent event) {
-					ISelection selection = event.getSelection();
-					if (selection instanceof ITextSelection) {
-						firePostSelectionChanged((ITextSelection) selection);
-					}
-				}
-			};
-		}
-
-		public boolean isEmpty() {
-			return fAstListeners.isEmpty();
-		}
-
-		public void install(ISelectionListenerWithAST listener) {
-			if (isEmpty()) {
-				ISelectionProvider selectionProvider = fPart
-						.getSelectionProvider();
-				if (selectionProvider instanceof IPostSelectionProvider) {
-					((IPostSelectionProvider) selectionProvider)
-							.addPostSelectionChangedListener(fPostSelectionListener);
-					selectionProvider
-							.addSelectionChangedListener(fSelectionListener);
-				}
-			}
-			fAstListeners.add(listener);
-		}
-
-		public void uninstall(ISelectionListenerWithAST listener) {
-			fAstListeners.remove(listener);
-			if (isEmpty()) {
-				ISelectionProvider selectionProvider = fPart
-						.getSelectionProvider();
-				if (selectionProvider instanceof IPostSelectionProvider) {
-					((IPostSelectionProvider) selectionProvider)
-							.removePostSelectionChangedListener(fPostSelectionListener);
-					selectionProvider
-							.removeSelectionChangedListener(fSelectionListener);
-				}
-			}
-		}
-
-		public void fireSelectionChanged(final ITextSelection selection) {
-			if (fCurrentJob != null) {
-				fCurrentJob.cancel();
-			}
-		}
-
-		public void firePostSelectionChanged(final ITextSelection selection) {
-			if (fCurrentJob != null) {
-				fCurrentJob.cancel();
-			}
-
-			fCurrentJob = new Job("SelectionListenerWithASTManager Job") {// JavaUIMessages.SelectionListenerWithASTManager_job_title)
-																			// {
-				public IStatus run(IProgressMonitor monitor) {
-					if (monitor == null) {
-						monitor = new NullProgressMonitor();
-					}
-					synchronized (fJobLock) {
-						return calculateASTandInform(/*input,*/ selection, monitor);
-					}
-				}
-			};
-			fCurrentJob.setPriority(Job.DECORATE);
-			fCurrentJob.setSystem(true);
-			fCurrentJob.schedule();
-		}
-
-		protected IStatus calculateASTandInform(/*IJavaElement input,*/
-				ITextSelection selection, IProgressMonitor monitor) {
-			if (monitor.isCanceled()) {
-				return Status.CANCEL_STATUS;
-			}
-			// create AST
-			try {
-				// CompilationUnit astRoot=
-				// PHPeclipsePlugin.getDefault().getASTProvider().getAST(input,
-				// ASTProvider.WAIT_ACTIVE_ONLY, monitor);
-
-				// if (astRoot != null && !monitor.isCanceled()) {
-				Object[] listeners;
-				synchronized (PartListenerGroup.this) {
-					listeners = fAstListeners.getListeners();
-				}
-				for (int i = 0; i < listeners.length; i++) {
-					((ISelectionListenerWithAST) listeners[i])
-							.selectionChanged(fPart, selection);// , astRoot);
-					if (monitor.isCanceled()) {
-						return Status.CANCEL_STATUS;
-					}
-				}
-				return Status.OK_STATUS;
-				// }
-			} catch (OperationCanceledException e) {
-				// thrown when cancelling the AST creation
-			}
-			return Status.CANCEL_STATUS;
-		}
-	}
-
-	private Map fListenerGroups;
-
-	private SelectionListenerWithASTManager() {
-		fListenerGroups = new HashMap();
-	}
-
-	/**
-	 * Registers a selection listener for the given editor part.
-	 * 
-	 * @param part
-	 *            The editor part to listen to.
-	 * @param listener
-	 *            The listener to register.
-	 */
-	public void addListener(ITextEditor part, ISelectionListenerWithAST listener) {
-		synchronized (this) {
-			PartListenerGroup partListener = (PartListenerGroup) fListenerGroups
-					.get(part);
-			if (partListener == null) {
-				partListener = new PartListenerGroup(part);
-				fListenerGroups.put(part, partListener);
-			}
-			partListener.install(listener);
-		}
-	}
-
-	/**
-	 * Unregisters a selection listener.
-	 * 
-	 * @param part
-	 *            The editor part the listener was registered.
-	 * @param listener
-	 *            The listener to unregister.
-	 */
-	public void removeListener(ITextEditor part,
-			ISelectionListenerWithAST listener) {
-		synchronized (this) {
-			PartListenerGroup partListener = (PartListenerGroup) fListenerGroups
-					.get(part);
-			if (partListener != null) {
-				partListener.uninstall(listener);
-				if (partListener.isEmpty()) {
-					fListenerGroups.remove(part);
-				}
-			}
-		}
-	}
-
-	/**
-	 * Forces a selection changed event that is sent to all listeners registered
-	 * to the given editor part. The event is sent from a background thread:
-	 * this method call can return before the listeners are informed.
-	 * 
-	 * @param part
-	 *            The editor part that has a changed selection
-	 * @param selection
-	 *            The new text selection
-	 */
-	public void forceSelectionChange(ITextEditor part, ITextSelection selection) {
-		synchronized (this) {
-			PartListenerGroup partListener = (PartListenerGroup) fListenerGroups
-					.get(part);
-			if (partListener != null) {
-				partListener.firePostSelectionChanged(selection);
-			}
-		}
-	}
-}