external file support

7 files changed, 374 insertions, 32 deletions

diff --git a/org.eclipse.ui.editors/src/org/eclipse/ui/editors/text/ILocationProvider.java b/org.eclipse.ui.editors/src/org/eclipse/ui/editors/text/ILocationProvider.java
new file mode 100644
index 00000000000..cb8c9fb5270
--- /dev/null
+++ b/org.eclipse.ui.editors/src/org/eclipse/ui/editors/text/ILocationProvider.java
@@ -0,0 +1,26 @@
+/**********************************************************************
+Copyright (c) 2000, 2003 IBM Corp. and others.
+All rights reserved. This program and the accompanying materials
+are made available under the terms of the Common Public License v1.0
+which accompanies this distribution, and is available at
+http://www.eclipse.org/legal/cpl-v10.html
+
+Contributors:
+	IBM Corporation - Initial implementation
+**********************************************************************/
+package org.eclipse.ui.editors.text;
+
+import org.eclipse.core.runtime.IPath;
+
+/**
+ * @since 3.0
+ */
+public interface ILocationProvider {
+	
+	/**
+	 * Returns the location of the given object or <code>null</code>.
+	 * 
+	 * @return the location of the given object or <code>null</code>
+	 */
+	IPath getPath(Object element);
+}
diff --git a/org.eclipse.ui.editors/src/org/eclipse/ui/editors/text/TextFileDocumentProvider.java b/org.eclipse.ui.editors/src/org/eclipse/ui/editors/text/TextFileDocumentProvider.java
index adf86f48005..8c1a0dcb094 100644
--- a/org.eclipse.ui.editors/src/org/eclipse/ui/editors/text/TextFileDocumentProvider.java
+++ b/org.eclipse.ui.editors/src/org/eclipse/ui/editors/text/TextFileDocumentProvider.java
@@ -29,7 +29,10 @@ import org.eclipse.core.filebuffers.ITextFileBuffer;
 import org.eclipse.core.filebuffers.ITextFileBufferManager;
 import org.eclipse.core.internal.filebuffers.ContainerGenerator;
 import org.eclipse.core.resources.IFile;
+import org.eclipse.core.resources.IWorkspace;
+import org.eclipse.core.resources.ResourcesPlugin;
 import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IAdaptable;
 import org.eclipse.core.runtime.ILog;
 import org.eclipse.core.runtime.IPath;
 import org.eclipse.core.runtime.IProgressMonitor;
@@ -170,10 +173,12 @@ public class TextFileDocumentProvider  implements IDocumentProvider, IDocumentPr
 		}
 
 		/*
-		 * @see org.eclipse.core.buffer.text.IBufferedFileListener#underlyingFileMoved(org.eclipse.core.buffer.text.IBufferedFile, org.eclipse.core.resources.IFile)
+		 * @see org.eclipse.core.buffer.text.IBufferedFileListener#underlyingFileMoved(org.eclipse.core.buffer.text.IBufferedFile, org.eclipse.core.runtime.IPath)
 		 */
-		public void underlyingFileMoved(IFileBuffer file, IFile target) {
-			IEditorInput input= target == null ? null : new FileEditorInput(target);
+		public void underlyingFileMoved(IFileBuffer file, IPath newLocation) {
+			IWorkspace workspace=ResourcesPlugin.getWorkspace();
+			IFile newFile= workspace.getRoot().getFile(newLocation);
+			IEditorInput input= newFile == null ? null : new FileEditorInput(newFile);
 			List list= new ArrayList(fElementStateListeners);
 			Iterator e= list.iterator();
 			while (e.hasNext()) {
@@ -289,19 +294,41 @@ public class TextFileDocumentProvider  implements IDocumentProvider, IDocumentPr
 		return new FileInfo();
 	}
 	
+	/**
+	 * Returns the workspace file at the given location or <code>null</code> if
+	 * the location is not a valid location in the workspace.
+	 * 
+	 * @param location the location
+	 * @return the workspace file at the location or <code>null</code>
+	 */
+	protected IFile getWorkspaceFileAtLocation(IPath location) {
+//		IWorkspace workspace= ResourcesPlugin.getWorkspace();
+//		return workspace.getRoot().getFileForLocation(location);
+		return null;
+	}
+	
 	protected FileInfo createFileInfo(Object element) throws CoreException {
-		if (element instanceof IFileEditorInput) {
-			IFileEditorInput input= (IFileEditorInput) element;
-			
-			IFile file= input.getFile();
+		
+		IPath location= null;
+		if (element instanceof IAdaptable) {
+			IAdaptable adaptable= (IAdaptable) element;
+			ILocationProvider provider= (ILocationProvider) adaptable.getAdapter(ILocationProvider.class);
+			if (provider != null)
+				location= provider.getPath(element);
+		}
+		
+		if (location != null) {
 			ITextFileBufferManager manager= FileBuffers.getTextFileBufferManager();
-			manager.connect(file, getProgressMonitor());
-			manager.requestSynchronizationContext(file);
-			ITextFileBuffer f= manager.getTextFileBuffer(file);
+			manager.connect(location, getProgressMonitor());
+			manager.requestSynchronizationContext(location);
+			ITextFileBuffer fileBuffer= manager.getTextFileBuffer(location);
 			
 			FileInfo info= createEmptyFileInfo();
-			info.fTextFileBuffer= f;
-			info.fModel= createAnnotationModel(file);
+			info.fTextFileBuffer= fileBuffer;
+			
+			IFile file= getWorkspaceFileAtLocation(location);
+			if (file != null && file.exists())
+				info.fModel= createAnnotationModel(file);
 			return info;
 		}
 		return null;
@@ -334,9 +361,9 @@ public class TextFileDocumentProvider  implements IDocumentProvider, IDocumentPr
 	protected void disposeFileInfo(Object element, FileInfo info) {
 		IFileBufferManager manager= FileBuffers.getTextFileBufferManager();
 		try {
-			IFile file= info.fTextFileBuffer.getUnderlyingFile();
-			manager.releaseSynchronizationContext(file);
-			manager.disconnect(file, getProgressMonitor());
+			IPath location= info.fTextFileBuffer.getLocation();
+			manager.releaseSynchronizationContext(location);
+			manager.disconnect(location, getProgressMonitor());
 		} catch (CoreException x) {
 			handleCoreException(x, "FileDocumentProvider.disposeElementInfo"); //$NON-NLS-1$
 		}
@@ -404,12 +431,8 @@ public class TextFileDocumentProvider  implements IDocumentProvider, IDocumentPr
 	 */
 	public long getModificationStamp(Object element) {
 		FileInfo info= (FileInfo) fFileInfoMap.get(element);
-		if (info != null)  {
-			File file= getSystemFile(info);
-			if (file != null)
-				return file.lastModified();
-			return info.fTextFileBuffer.getUnderlyingFile().getModificationStamp();
-		}
+		if (info != null)
+			return info.fTextFileBuffer.getModifcationStamp();
 		return getParentProvider().getModificationStamp(element);
 	}
 
@@ -649,8 +672,7 @@ public class TextFileDocumentProvider  implements IDocumentProvider, IDocumentPr
 	}
 	
 	protected File getSystemFile(FileInfo info)  {
-		IFile file= info.fTextFileBuffer.getUnderlyingFile();
-		IPath path= file.getLocation();
+		IPath path= info.fTextFileBuffer.getLocation();
 		return path == null ? null : path.toFile();		
 	}
 	
diff --git a/org.eclipse.ui.editors/src/org/eclipse/ui/internal/editors/text/EditorsPlugin.java b/org.eclipse.ui.editors/src/org/eclipse/ui/internal/editors/text/EditorsPlugin.java
index 756997528f8..510bd06487e 100644
--- a/org.eclipse.ui.editors/src/org/eclipse/ui/internal/editors/text/EditorsPlugin.java
+++ b/org.eclipse.ui.editors/src/org/eclipse/ui/internal/editors/text/EditorsPlugin.java
@@ -10,9 +10,13 @@
  *******************************************************************************/
 package org.eclipse.ui.internal.editors.text;
 
+import org.eclipse.core.resources.IFile;
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IAdapterManager;
 import org.eclipse.core.runtime.IPluginDescriptor;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.MultiStatus;
+import org.eclipse.core.runtime.Platform;
 import org.eclipse.core.runtime.Status;
 
 import org.eclipse.jface.preference.IPreferenceStore;
@@ -28,14 +32,10 @@ import org.eclipse.ui.plugin.AbstractUIPlugin;
  */
 public class EditorsPlugin extends AbstractUIPlugin {
 
-	private static EditorsPlugin fgInst;
-	public EditorsPlugin(IPluginDescriptor descriptor) {
-		super(descriptor);
-		fgInst= this;
-	}
-
+	private static EditorsPlugin fgInstance;
+	
 	public static EditorsPlugin getDefault() {
-		return fgInst;
+		return fgInstance;
 	}
 	
 	public static void log(IStatus status) {
@@ -49,7 +49,7 @@ public class EditorsPlugin extends AbstractUIPlugin {
 	public static void logErrorMessage(String message) {
 		log(new Status(IStatus.ERROR, getPluginId(), IEditorsStatusConstants.INTERNAL_ERROR, message, null));
 	}
-
+	
 	public static void logErrorStatus(String message, IStatus status) {
 		if (status == null) {
 			logErrorMessage(message);
@@ -63,11 +63,41 @@ public class EditorsPlugin extends AbstractUIPlugin {
 	public static void log(Throwable e) {
 		log(new Status(IStatus.ERROR, getPluginId(), IEditorsStatusConstants.INTERNAL_ERROR, TextEditorMessages.getString("EditorsPlugin.internal_error"), e)); //$NON-NLS-1$
 	}
+	
+	
+	
+	private FileEditorInputAdapterFactory fFileEditorInputAdapterFactory;
+	
+	
+	public EditorsPlugin(IPluginDescriptor descriptor) {
+		super(descriptor);
+		fgInstance= this;
+	}
+
 
-	/* (non-Javadoc)
+	/*
 	 * @see org.eclipse.ui.plugin.AbstractUIPlugin#initializeDefaultPreferences(org.eclipse.jface.preference.IPreferenceStore)
 	 */
 	protected void initializeDefaultPreferences(IPreferenceStore store) {
 		TextEditorPreferenceConstants.initializeDefaultValues(store);
 	}
+	
+	/*
+	 * @see org.eclipse.ui.plugin.AbstractUIPlugin#startup()
+	 */
+	public void startup() throws CoreException {
+		super.startup();
+		fFileEditorInputAdapterFactory= new FileEditorInputAdapterFactory();
+		IAdapterManager manager= Platform.getAdapterManager();		
+		manager.registerAdapters(fFileEditorInputAdapterFactory, IFile.class);
+	}
+	
+	/*
+	 * @see org.eclipse.ui.plugin.AbstractUIPlugin#shutdown()
+	 */
+	public void shutdown() throws CoreException {
+		IAdapterManager manager= Platform.getAdapterManager();		
+		manager.unregisterAdapters(fFileEditorInputAdapterFactory);
+		super.shutdown();
+	}
 }
diff --git a/org.eclipse.ui.editors/src/org/eclipse/ui/internal/editors/text/FileEditorInputAdapterFactory.java b/org.eclipse.ui.editors/src/org/eclipse/ui/internal/editors/text/FileEditorInputAdapterFactory.java
new file mode 100644
index 00000000000..3ae26c1076b
--- /dev/null
+++ b/org.eclipse.ui.editors/src/org/eclipse/ui/internal/editors/text/FileEditorInputAdapterFactory.java
@@ -0,0 +1,63 @@
+/**********************************************************************
+Copyright (c) 2000, 2003 IBM Corp. and others.
+All rights reserved. This program and the accompanying materials
+are made available under the terms of the Common Public License v1.0
+which accompanies this distribution, and is available at
+http://www.eclipse.org/legal/cpl-v10.html
+
+Contributors:
+	IBM Corporation - Initial implementation
+**********************************************************************/
+
+package org.eclipse.ui.internal.editors.text;
+
+import org.eclipse.core.resources.IFile;
+import org.eclipse.core.runtime.IAdapterFactory;
+import org.eclipse.core.runtime.IPath;
+
+//import org.eclipse.ui.IFileEditorInput;
+import org.eclipse.ui.IFileEditorInput;
+import org.eclipse.ui.editors.text.ILocationProvider;
+
+/**
+ * @since 3.0
+ */
+public class FileEditorInputAdapterFactory implements IAdapterFactory {
+	
+	private static class LocationProvider implements ILocationProvider {
+		/*
+		 * @see org.eclipse.ui.editors.text.ILocationProvider#getLocation(java.lang.Object)
+		 */
+		public IPath getPath(Object element) {
+			if (element instanceof IFileEditorInput) {
+				IFileEditorInput input= (IFileEditorInput) element;
+				return input.getFile().getLocation();
+			}
+			return null;
+		}
+	}
+	
+	/** The list of provided adapters. */
+	private static final Class[] ADAPTER_LIST= new Class[] { ILocationProvider.class };
+	
+	/** The provided location provider */
+	private ILocationProvider fLocationProvider= new LocationProvider();
+
+	/*
+	 * @see org.eclipse.core.runtime.IAdapterFactory#getAdapter(java.lang.Object, java.lang.Class)
+	 */
+	public Object getAdapter(Object adaptableObject, Class adapterType) {
+		if (ILocationProvider.class.equals(adapterType)) {
+			if (adaptableObject instanceof IFile)
+				return fLocationProvider;
+		}
+		return null;
+	}
+
+	/*
+	 * @see org.eclipse.core.runtime.IAdapterFactory#getAdapterList()
+	 */
+	public Class[] getAdapterList() {
+		return ADAPTER_LIST;
+	}
+}
\ No newline at end of file
diff --git a/org.eclipse.ui.editors/src/org/eclipse/ui/internal/editors/text/JavaFileEditorInput.java b/org.eclipse.ui.editors/src/org/eclipse/ui/internal/editors/text/JavaFileEditorInput.java
new file mode 100644
index 00000000000..2b8cfaf940d
--- /dev/null
+++ b/org.eclipse.ui.editors/src/org/eclipse/ui/internal/editors/text/JavaFileEditorInput.java
@@ -0,0 +1,90 @@
+/**********************************************************************
+Copyright (c) 2000, 2003 IBM Corp. and others.
+All rights reserved. This program and the accompanying materials
+are made available under the terms of the Common Public License v1.0
+which accompanies this distribution, and is available at
+http://www.eclipse.org/legal/cpl-v10.html
+
+Contributors:
+	IBM Corporation - Initial implementation
+**********************************************************************/
+package org.eclipse.ui.internal.editors.text;
+
+import java.io.File;
+
+import org.eclipse.core.runtime.IPath;
+import org.eclipse.core.runtime.Path;
+import org.eclipse.core.runtime.Platform;
+
+import org.eclipse.jface.resource.ImageDescriptor;
+
+import org.eclipse.ui.IEditorInput;
+import org.eclipse.ui.IPersistableElement;
+import org.eclipse.ui.editors.text.ILocationProvider;
+
+/**
+ * @since 3.0
+ */
+public class JavaFileEditorInput implements IEditorInput, ILocationProvider {
+
+	private File fFile;
+
+	public JavaFileEditorInput(File file) {
+		super();
+		fFile= file;
+	}
+	/*
+	 * @see org.eclipse.ui.IEditorInput#exists()
+	 */
+	public boolean exists() {
+		return fFile.exists();
+	}
+
+	/*
+	 * @see org.eclipse.ui.IEditorInput#getImageDescriptor()
+	 */
+	public ImageDescriptor getImageDescriptor() {
+		return null;
+	}
+
+	/*
+	 * @see org.eclipse.ui.IEditorInput#getName()
+	 */
+	public String getName() {
+		return fFile.getName();
+	}
+
+	/*
+	 * @see org.eclipse.ui.IEditorInput#getPersistable()
+	 */
+	public IPersistableElement getPersistable() {
+		return null;
+	}
+
+	/*
+	 * @see org.eclipse.ui.IEditorInput#getToolTipText()
+	 */
+	public String getToolTipText() {
+		return fFile.getAbsolutePath();
+	}
+
+	/*
+	 * @see org.eclipse.core.runtime.IAdaptable#getAdapter(java.lang.Class)
+	 */
+	public Object getAdapter(Class adapter) {
+		if (ILocationProvider.class.equals(adapter))
+			return this;
+		return Platform.getAdapterManager().getAdapter(this, adapter);
+	}
+
+	/*
+	 * @see org.eclipse.ui.editors.text.ILocationProvider#getPath(java.lang.Object)
+	 */
+	public IPath getPath(Object element) {
+		if (element instanceof JavaFileEditorInput) {
+			JavaFileEditorInput input= (JavaFileEditorInput) element;
+			return new Path(input.fFile.getAbsolutePath());
+		}
+		return null;
+	}
+}
\ No newline at end of file
diff --git a/org.eclipse.ui.editors/src/org/eclipse/ui/internal/editors/text/OpenExternalFileAction.java b/org.eclipse.ui.editors/src/org/eclipse/ui/internal/editors/text/OpenExternalFileAction.java
new file mode 100644
index 00000000000..074092fabd5
--- /dev/null
+++ b/org.eclipse.ui.editors/src/org/eclipse/ui/internal/editors/text/OpenExternalFileAction.java
@@ -0,0 +1,109 @@
+/**********************************************************************
+Copyright (c) 2000, 2003 IBM Corp. and others.
+All rights reserved. This program and the accompanying materials
+are made available under the terms of the Common Public License v1.0
+which accompanies this distribution, and is available at
+http://www.eclipse.org/legal/cpl-v10.html
+
+Contributors:
+	IBM Corporation - Initial implementation
+**********************************************************************/
+package org.eclipse.ui.internal.editors.text;
+
+import java.io.File;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.widgets.FileDialog;
+
+import org.eclipse.jface.action.Action;
+import org.eclipse.jface.action.IAction;
+import org.eclipse.jface.viewers.ISelection;
+
+import org.eclipse.ui.IEditorDescriptor;
+import org.eclipse.ui.IEditorInput;
+import org.eclipse.ui.IEditorRegistry;
+import org.eclipse.ui.IWorkbench;
+import org.eclipse.ui.IWorkbenchPage;
+import org.eclipse.ui.IWorkbenchWindow;
+import org.eclipse.ui.IWorkbenchWindowActionDelegate;
+import org.eclipse.ui.PartInitException;
+
+/**
+ * @since 3.0
+ */
+public class OpenExternalFileAction extends Action implements IWorkbenchWindowActionDelegate {
+
+	private IWorkbenchWindow fWindow;
+
+	public OpenExternalFileAction() {
+//		setId("org.eclipse.ui.edit.text.openExternalFile");
+//		setActionDefinitionId("org.eclipse.ui.edit.text.openExternalFile");
+		setEnabled(true);
+	}
+
+	/*
+	 * @see org.eclipse.ui.IWorkbenchWindowActionDelegate#dispose()
+	 */
+	public void dispose() {
+		fWindow= null;
+	}
+
+	/*
+	 * @see org.eclipse.ui.IWorkbenchWindowActionDelegate#init(org.eclipse.ui.IWorkbenchWindow)
+	 */
+	public void init(IWorkbenchWindow window) {
+		fWindow= window;
+	}
+
+	/*
+	 * @see org.eclipse.ui.IActionDelegate#run(org.eclipse.jface.action.IAction)
+	 */
+	public void run(IAction action) {
+		run();
+	}
+
+	/*
+	 * @see org.eclipse.ui.IActionDelegate#selectionChanged(org.eclipse.jface.action.IAction, org.eclipse.jface.viewers.ISelection)
+	 */
+	public void selectionChanged(IAction action, ISelection selection) {
+	}
+
+	private File queryFile() {
+		FileDialog dialog= new FileDialog(fWindow.getShell(), SWT.OPEN);
+		dialog.setText(TextEditorMessages.getString("OpenExternalFileAction.dialog.text")); //$NON-NLS-1$
+		String path= dialog.open();
+		if (path != null)
+			return new File(path);
+		return null;
+	}
+
+	/*
+	 * @see org.eclipse.jface.action.Action#run()
+	 */
+	public void run() {
+		File file= queryFile();
+		if (file != null && file.exists()) {
+			IEditorInput input= createEditorInput(file);
+			String editorId= getEditorId(file);
+			IWorkbenchPage page= fWindow.getActivePage();
+			try {
+				page.openEditor(input, editorId);
+			} catch (PartInitException e) {
+				e.printStackTrace();
+			}
+		}
+	}
+
+	private String getEditorId(File file) {
+		IWorkbench workbench= fWindow.getWorkbench();
+		IEditorRegistry editorRegistry= workbench.getEditorRegistry();
+		IEditorDescriptor descriptor= editorRegistry.getDefaultEditor(file.getName());
+		if (descriptor != null)
+			return descriptor.getId();
+		return "org.eclipse.ui.DefaultTextEditor"; //$NON-NLS-1$
+	}
+
+	private IEditorInput createEditorInput(File file) {
+		return new JavaFileEditorInput(file);
+	}
+}
\ No newline at end of file
diff --git a/org.eclipse.ui.editors/src/org/eclipse/ui/internal/editors/text/TextEditorMessages.properties b/org.eclipse.ui.editors/src/org/eclipse/ui/internal/editors/text/TextEditorMessages.properties
index debe3d650a4..10b69200e4d 100644
--- a/org.eclipse.ui.editors/src/org/eclipse/ui/internal/editors/text/TextEditorMessages.properties
+++ b/org.eclipse.ui.editors/src/org/eclipse/ui/internal/editors/text/TextEditorMessages.properties
@@ -50,3 +50,5 @@ TextEditorPreferencePage.quickdiff.referenceprovidertitle=Quickdiff &reference p
 TextEditorPreferencePage.quickdiff.setDefault=Make &Default
 TextEditorPreferencePage.quickdiff.defaultlabel= (default)
 TextEditorPreferencePage.quickDiffCharacterMode= Show changes using &characters instead of colors (on line number bar only)
+
+OpenExternalFileAction.dialog.text=Open External File