| /******************************************************************************* |
| * Copyright (c) 2000, 2003 IBM Corporation 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 API and implementation |
| *******************************************************************************/ |
| package org.eclipse.compare.internal; |
| |
| import java.lang.reflect.InvocationTargetException; |
| |
| import org.eclipse.swt.graphics.Point; |
| import org.eclipse.swt.widgets.*; |
| |
| import org.eclipse.jface.dialogs.ErrorDialog; |
| import org.eclipse.jface.dialogs.MessageDialog; |
| import org.eclipse.jface.util.*; |
| |
| import org.eclipse.ui.*; |
| import org.eclipse.ui.actions.WorkspaceModifyOperation; |
| import org.eclipse.ui.help.WorkbenchHelp; |
| import org.eclipse.ui.part.EditorPart; |
| |
| import org.eclipse.core.resources.IMarker; |
| import org.eclipse.core.runtime.*; |
| |
| import org.eclipse.compare.*; |
| |
| |
| /** |
| * A CompareEditor takes a ICompareEditorInput as input. |
| * Most functionality is delegated to the ICompareEditorInput. |
| */ |
| public class CompareEditor extends EditorPart implements IReusableEditor { |
| |
| /** |
| * Internal property change listener for handling changes in the editor's input. |
| */ |
| class PropertyChangeListener implements IPropertyChangeListener { |
| /* |
| * @see IPropertyChangeListener#propertyChange(org.eclipse.jface.util.PropertyChangeEvent) |
| */ |
| public void propertyChange(PropertyChangeEvent event) { |
| CompareEditor.this.propertyChange(event); |
| } |
| } |
| |
| public final static String CONFIRM_SAVE_PROPERTY= "org.eclipse.compare.internal.CONFIRM_SAVE_PROPERTY"; //$NON-NLS-1$ |
| |
| private IActionBars fActionBars; |
| /** The editor's property change listener. */ |
| private IPropertyChangeListener fPropertyChangeListener= new PropertyChangeListener(); |
| /** the SWT control */ |
| private Control fControl; |
| |
| |
| public CompareEditor() { |
| } |
| |
| /* package */ CompareConfiguration getCompareConfiguration() { |
| IEditorInput input= getEditorInput(); |
| if (input instanceof CompareEditorInput) |
| return ((CompareEditorInput)input).getCompareConfiguration(); |
| return null; |
| } |
| |
| public void init(IEditorSite site, IEditorInput input) throws PartInitException { |
| |
| if (!(input instanceof CompareEditorInput)) |
| throw new PartInitException(Utilities.getString("CompareEditor.invalidInput")); //$NON-NLS-1$ |
| |
| setSite(site); |
| setInput(input); |
| } |
| |
| public void setInput(IEditorInput input) { |
| try { |
| doSetInput(input); |
| } catch (CoreException x) { |
| String title= Utilities.getString("CompareEditor.error.setinput.title"); //$NON-NLS-1$ |
| String msg= Utilities.getString("CompareEditor.error.setinput.message"); //$NON-NLS-1$ |
| ErrorDialog.openError(getSite().getShell(), title, msg, x.getStatus()); |
| } |
| } |
| |
| public void doSetInput(IEditorInput input) throws CoreException { |
| |
| if (!(input instanceof CompareEditorInput)) { |
| IStatus s= new Status(IStatus.ERROR, PlatformUI.PLUGIN_ID, IStatus.OK, Utilities.getString("CompareEditor.invalidInput"), null); //$NON-NLS-1$ |
| throw new CoreException(s); |
| } |
| |
| IEditorInput oldInput= getEditorInput(); |
| if (oldInput instanceof IPropertyChangeNotifier) |
| ((IPropertyChangeNotifier)input).removePropertyChangeListener(fPropertyChangeListener); |
| |
| super.setInput(input); |
| |
| CompareEditorInput cei= (CompareEditorInput) input; |
| |
| setTitleImage(cei.getTitleImage()); |
| setTitle(cei.getTitle()); |
| |
| if (input instanceof IPropertyChangeNotifier) |
| ((IPropertyChangeNotifier)input).addPropertyChangeListener(fPropertyChangeListener); |
| |
| if (oldInput != null) { |
| if (fControl != null && !fControl.isDisposed()) { |
| Point oldSize= fControl.getSize(); |
| Composite parent= fControl.getParent(); |
| fControl.dispose(); |
| createPartControl(parent); |
| if (fControl != null) |
| fControl.setSize(oldSize); |
| } |
| } |
| } |
| |
| public IActionBars getActionBars() { |
| return fActionBars; |
| } |
| |
| public void setActionBars(IActionBars actionBars) { |
| fActionBars= actionBars; |
| } |
| |
| /* |
| * @see IDesktopPart#createPartControl(Composite) |
| */ |
| public void createPartControl(Composite parent) { |
| parent.setData(this); |
| |
| IEditorInput input= getEditorInput(); |
| if (input instanceof CompareEditorInput) { |
| fControl= ((CompareEditorInput) input).createContents(parent); |
| WorkbenchHelp.setHelp(fControl, ICompareContextIds.COMPARE_EDITOR); |
| } |
| } |
| |
| /* |
| * @see DesktopPart#dispose |
| */ |
| public void dispose() { |
| |
| IEditorInput input= getEditorInput(); |
| if (input instanceof IPropertyChangeNotifier) |
| ((IPropertyChangeNotifier)input).removePropertyChangeListener(fPropertyChangeListener); |
| |
| super.dispose(); |
| |
| fPropertyChangeListener= null; |
| } |
| |
| /* |
| * @see IDesktopPart#setFocus |
| */ |
| public void setFocus() { |
| IEditorInput input= getEditorInput(); |
| if (input instanceof CompareEditorInput) |
| ((CompareEditorInput)input).setFocus(); |
| } |
| |
| /** |
| * Returns false because the editor doesn't support "Save As...". |
| */ |
| public boolean isSaveAsAllowed() { |
| return false; |
| } |
| |
| public void gotoMarker(IMarker marker) { |
| } |
| |
| /** |
| * Always throws an AssertionFailedException. |
| */ |
| /* |
| * @see IEditorPart#doSaveAs() |
| */ |
| public void doSaveAs() { |
| Assert.isTrue(false); // Save As not supported for CompareEditor |
| } |
| |
| /* |
| * @see IEditorPart#doSave() |
| */ |
| public void doSave(IProgressMonitor progressMonitor) { |
| |
| final IEditorInput input= getEditorInput(); |
| |
| WorkspaceModifyOperation operation= new WorkspaceModifyOperation() { |
| public void execute(IProgressMonitor pm) throws CoreException { |
| if (input instanceof CompareEditorInput) |
| ((CompareEditorInput)input).saveChanges(pm); |
| } |
| }; |
| |
| Shell shell= getSite().getShell(); |
| |
| try { |
| |
| operation.run(progressMonitor); |
| |
| firePropertyChange(PROP_DIRTY); |
| |
| } catch (InterruptedException x) { |
| // NeedWork |
| } catch (OperationCanceledException x) { |
| // NeedWork |
| } catch (InvocationTargetException x) { |
| String title= Utilities.getString("CompareEditor.saveError.title"); //$NON-NLS-1$ |
| String reason= x.getTargetException().getMessage(); |
| MessageDialog.openError(shell, title, Utilities.getFormattedString("CompareEditor.cantSaveError", reason)); //$NON-NLS-1$ |
| } |
| } |
| |
| /* |
| * @see IEditorPart#isDirty() |
| */ |
| public boolean isDirty() { |
| IEditorInput input= getEditorInput(); |
| if (input instanceof CompareEditorInput) |
| return ((CompareEditorInput)input).isSaveNeeded(); |
| return false; |
| } |
| |
| public void propertyChange(PropertyChangeEvent event) { |
| Object old_value= event.getOldValue(); |
| Object new_value= event.getNewValue(); |
| if (old_value == null || new_value == null || !old_value.equals(new_value)) |
| firePropertyChange(PROP_DIRTY); |
| } |
| } |
| |