| /******************************************************************************* |
| * Copyright (c) 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 org.eclipse.ltk.internal.ui.refactoring.history; |
| |
| import java.text.MessageFormat; |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import java.util.Set; |
| |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.core.runtime.jobs.Job; |
| |
| import org.eclipse.core.resources.IProject; |
| |
| import org.eclipse.ltk.core.refactoring.RefactoringCore; |
| import org.eclipse.ltk.core.refactoring.RefactoringDescriptor; |
| import org.eclipse.ltk.core.refactoring.RefactoringDescriptorProxy; |
| import org.eclipse.ltk.core.refactoring.history.RefactoringHistory; |
| |
| import org.eclipse.ltk.internal.ui.refactoring.Assert; |
| import org.eclipse.ltk.internal.ui.refactoring.RefactoringPluginImages; |
| import org.eclipse.ltk.internal.ui.refactoring.RefactoringUIMessages; |
| |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.events.DisposeEvent; |
| import org.eclipse.swt.events.DisposeListener; |
| import org.eclipse.swt.graphics.Image; |
| import org.eclipse.swt.layout.GridData; |
| import org.eclipse.swt.layout.GridLayout; |
| import org.eclipse.swt.widgets.Composite; |
| |
| import org.eclipse.jface.text.Document; |
| import org.eclipse.jface.text.TextViewer; |
| import org.eclipse.jface.viewers.AbstractTreeViewer; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.jface.viewers.ISelectionChangedListener; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.jface.viewers.SelectionChangedEvent; |
| import org.eclipse.jface.viewers.TreeViewer; |
| import org.eclipse.jface.viewers.Viewer; |
| |
| import org.eclipse.ui.progress.UIJob; |
| |
| import org.eclipse.compare.CompareViewerPane; |
| import org.eclipse.compare.CompareViewerSwitchingPane; |
| import org.eclipse.compare.Splitter; |
| |
| import org.eclipse.ltk.ui.refactoring.history.IRefactoringHistoryControl; |
| import org.eclipse.ltk.ui.refactoring.history.RefactoringHistoryContentProvider; |
| import org.eclipse.ltk.ui.refactoring.history.RefactoringHistoryControlConfiguration; |
| |
| /** |
| * Control which is capable of displaying refactoring histories. |
| * |
| * @since 3.2 |
| */ |
| public class RefactoringHistoryControl extends Composite implements IRefactoringHistoryControl { |
| |
| /** The caption image */ |
| private Image fCaptionImage= null; |
| |
| /** The comment pane */ |
| private CompareViewerSwitchingPane fCommentPane= null; |
| |
| /** The refactoring history control configuration to use */ |
| protected final RefactoringHistoryControlConfiguration fControlConfiguration; |
| |
| /** The history pane */ |
| private CompareViewerPane fHistoryPane= null; |
| |
| /** The history viewer */ |
| private TreeViewer fHistoryViewer= null; |
| |
| /** The splitter control */ |
| private Splitter fSplitterControl= null; |
| |
| /** |
| * Creates a new refactoring history control. |
| * |
| * @param parent |
| * the parent control |
| * @param configuration |
| * the refactoring history control configuration to use |
| */ |
| public RefactoringHistoryControl(final Composite parent, final RefactoringHistoryControlConfiguration configuration) { |
| super(parent, SWT.NONE); |
| Assert.isNotNull(configuration); |
| fControlConfiguration= configuration; |
| } |
| |
| /** |
| * Creates the button bar at the right of the component. |
| * |
| * @param parent |
| * the parent composite |
| */ |
| protected void createButtonBar(final Composite parent) { |
| // Do nothing |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public final void createControl() { |
| RefactoringCore.getRefactoringHistoryService().connect(); |
| fCaptionImage= RefactoringPluginImages.DESC_OBJS_COMPOSITE_CHANGE.createImage(); |
| GridLayout layout= new GridLayout(2, false); |
| layout.marginHeight= 0; |
| layout.marginWidth= 0; |
| layout.horizontalSpacing= 0; |
| layout.verticalSpacing= 0; |
| setLayout(layout); |
| final GridData data= new GridData(); |
| data.grabExcessHorizontalSpace= true; |
| data.grabExcessVerticalSpace= true; |
| data.horizontalAlignment= SWT.FILL; |
| data.verticalAlignment= SWT.FILL; |
| setLayoutData(data); |
| fSplitterControl= new Splitter(this, SWT.VERTICAL); |
| fSplitterControl.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.GRAB_HORIZONTAL | GridData.VERTICAL_ALIGN_FILL | GridData.GRAB_VERTICAL)); |
| fSplitterControl.addDisposeListener(new DisposeListener() { |
| |
| public final void widgetDisposed(final DisposeEvent event) { |
| if (fCaptionImage != null) |
| fCaptionImage.dispose(); |
| } |
| }); |
| createButtonBar(this); |
| final Composite leftPane= new Composite(fSplitterControl, SWT.NONE); |
| layout= new GridLayout(); |
| layout.marginWidth= 0; |
| layout.marginHeight= 2; |
| layout.verticalSpacing= 2; |
| leftPane.setLayout(layout); |
| fHistoryPane= new CompareViewerPane(leftPane, SWT.BORDER | SWT.FLAT); |
| fHistoryPane.setImage(fCaptionImage); |
| String text= null; |
| final IProject project= fControlConfiguration.getProject(); |
| if (project != null) |
| text= MessageFormat.format(fControlConfiguration.getProjectPattern(), new String[] { project.getName()}); |
| else |
| text= fControlConfiguration.getWorkspaceCaption(); |
| fHistoryPane.setText(text); |
| fHistoryPane.setLayoutData(new GridData(GridData.FILL_HORIZONTAL | GridData.FILL_VERTICAL)); |
| fHistoryViewer= createHistoryViewer(fHistoryPane); |
| if (!fControlConfiguration.isTimeDisplayed()) |
| fHistoryViewer.setAutoExpandLevel(AbstractTreeViewer.ALL_LEVELS); |
| fHistoryViewer.setContentProvider(fControlConfiguration.getContentProvider()); |
| fHistoryViewer.setLabelProvider(fControlConfiguration.getLabelProvider()); |
| fHistoryViewer.addSelectionChangedListener(new ISelectionChangedListener() { |
| |
| public final void selectionChanged(final SelectionChangedEvent event) { |
| final ISelection selection= event.getSelection(); |
| if (selection instanceof IStructuredSelection) |
| handleSelectionChanged((IStructuredSelection) selection); |
| } |
| }); |
| fHistoryPane.setContent(fHistoryViewer.getControl()); |
| fCommentPane= new CompareViewerSwitchingPane(fSplitterControl, SWT.BORDER | SWT.FLAT) { |
| |
| protected final Viewer getViewer(final Viewer viewer, final Object input) { |
| if (input instanceof String) { |
| final String comment= (String) input; |
| final TextViewer extended= new TextViewer(fCommentPane, SWT.NULL); |
| extended.setDocument(new Document(comment)); |
| setText(fControlConfiguration.getCommentCaption()); |
| return extended; |
| } |
| return null; |
| } |
| }; |
| fCommentPane.setText(fControlConfiguration.getCommentCaption()); |
| fCommentPane.setEnabled(false); |
| fSplitterControl.setWeights(new int[] { 80, 20}); |
| } |
| |
| /** |
| * Creates the history viewer of the dialog. |
| * |
| * @param parent |
| * the parent composite |
| * @return the history viewer |
| */ |
| protected TreeViewer createHistoryViewer(final Composite parent) { |
| Assert.isNotNull(parent); |
| return new TreeViewer(parent, SWT.H_SCROLL | SWT.V_SCROLL); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public final void dispose() { |
| RefactoringCore.getRefactoringHistoryService().disconnect(); |
| super.dispose(); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public final RefactoringDescriptorProxy[] getSelectedDescriptors() { |
| final Set set= new HashSet(); |
| final ISelection selection= fHistoryViewer.getSelection(); |
| if (selection instanceof IStructuredSelection) { |
| final IStructuredSelection structured= (IStructuredSelection) selection; |
| for (final Iterator iterator= structured.iterator(); iterator.hasNext();) { |
| final Object element= iterator.next(); |
| if (element instanceof RefactoringHistoryEntry) { |
| final RefactoringHistoryEntry entry= (RefactoringHistoryEntry) element; |
| set.add(entry.getDescriptor()); |
| } |
| |
| // TODO: handle parent elements |
| } |
| } |
| return (RefactoringDescriptorProxy[]) set.toArray(new RefactoringDescriptorProxy[set.size()]); |
| } |
| |
| /** |
| * Handles the selection changed event. |
| * |
| * @param selection |
| * the new selection |
| */ |
| protected void handleSelectionChanged(final IStructuredSelection selection) { |
| Assert.isNotNull(selection); |
| final Object[] elements= selection.toArray(); |
| if (elements.length == 1 && elements[0] instanceof RefactoringHistoryEntry) { |
| final RefactoringHistoryEntry entry= (RefactoringHistoryEntry) elements[0]; |
| final RefactoringDescriptorProxy proxy= entry.getDescriptor(); |
| final Job job= new UIJob(RefactoringUIMessages.RefactoringHistoryControl_resolving_information) { |
| |
| public final IStatus runInUIThread(final IProgressMonitor monitor) { |
| final RefactoringDescriptor descriptor= proxy.requestDescriptor(monitor); |
| if (descriptor != null) { |
| fCommentPane.setInput(descriptor.getComment()); |
| fCommentPane.setText(fControlConfiguration.getCommentCaption()); |
| } |
| return Status.OK_STATUS; |
| } |
| }; |
| job.setSystem(true); |
| job.schedule(); |
| } |
| fCommentPane.setInput(null); |
| fCommentPane.setText(fControlConfiguration.getCommentCaption()); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public void setRefactoringHistory(final RefactoringHistory history) { |
| fHistoryViewer.setInput(history); |
| if (history != null) { |
| final RefactoringHistoryContentProvider provider= fControlConfiguration.getContentProvider(); |
| if (provider != null) { |
| provider.inputChanged(fHistoryViewer, null, history); |
| final Object[] roots= provider.getRootElements(); |
| if (roots != null && roots.length > 0) { |
| final Object first= roots[0]; |
| if (first != null) |
| fHistoryViewer.setExpandedState(first, true); |
| } |
| } |
| } |
| } |
| } |