| /******************************************************************************* |
| * Copyright (c) 2000, 2011 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.compare.internal; |
| |
| import org.eclipse.compare.CompareConfiguration; |
| import org.eclipse.compare.CompareViewerSwitchingPane; |
| import org.eclipse.compare.Splitter; |
| import org.eclipse.compare.structuremergeviewer.ICompareInput; |
| import org.eclipse.core.runtime.Adapters; |
| import org.eclipse.jface.util.IPropertyChangeListener; |
| import org.eclipse.jface.util.PropertyChangeEvent; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.jface.viewers.ISelectionChangedListener; |
| import org.eclipse.jface.viewers.StructuredSelection; |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Control; |
| import org.eclipse.ui.part.IPageSite; |
| import org.eclipse.ui.part.Page; |
| import org.eclipse.ui.views.contentoutline.IContentOutlinePage; |
| |
| public class CompareOutlinePage extends Page implements IContentOutlinePage, IPropertyChangeListener { |
| private CompareEditor fCompareEditor; |
| private Control fControl; |
| private CompareViewerSwitchingPane fStructurePane; |
| private OutlineViewerCreator fCreator; |
| |
| CompareOutlinePage(CompareEditor editor) { |
| fCompareEditor= editor; |
| } |
| |
| @Override |
| public void createControl(Composite parent) { |
| final Splitter h= new Splitter(parent, SWT.HORIZONTAL); |
| fStructurePane= new CompareViewerSwitchingPane(h, SWT.BORDER | SWT.FLAT, true) { |
| @Override |
| protected Viewer getViewer(Viewer oldViewer, Object input) { |
| if (input instanceof ICompareInput) |
| return findStructureViewer(oldViewer, (ICompareInput)input, this); |
| return null; |
| } |
| }; |
| h.setVisible(fStructurePane, true); |
| fControl = h; |
| IPageSite site = getSite(); |
| site.setSelectionProvider(fStructurePane); |
| h.layout(); |
| reset(); |
| } |
| |
| private Viewer findStructureViewer(Viewer oldViewer, ICompareInput input, Composite parent) { |
| OutlineViewerCreator creator = getCreator(); |
| if (creator != null) |
| return creator.findStructureViewer(oldViewer, input, parent, getCompareConfiguration()); |
| return null; |
| } |
| |
| private CompareConfiguration getCompareConfiguration() { |
| return fCompareEditor.getCompareConfiguration(); |
| } |
| |
| @Override |
| public Control getControl() { |
| return fControl; |
| } |
| |
| @Override |
| public void setFocus() { |
| if (fStructurePane != null) |
| fStructurePane.setFocus(); |
| } |
| |
| @Override |
| public void addSelectionChangedListener(ISelectionChangedListener listener) { |
| if (fStructurePane != null) |
| fStructurePane.addSelectionChangedListener(listener); |
| } |
| |
| @Override |
| public ISelection getSelection() { |
| if (fStructurePane != null) |
| return fStructurePane.getSelection(); |
| return StructuredSelection.EMPTY; |
| } |
| |
| @Override |
| public void removeSelectionChangedListener(ISelectionChangedListener listener) { |
| if (fStructurePane != null) |
| fStructurePane.removeSelectionChangedListener(listener); |
| } |
| |
| @Override |
| public void setSelection(ISelection selection) { |
| if (fStructurePane != null) |
| fStructurePane.setSelection(selection); |
| } |
| |
| private void setInput(Object input) { |
| if (fStructurePane != null) { |
| fStructurePane.setInput(input); |
| ((Splitter)fControl).layout(); |
| } |
| } |
| |
| public OutlineViewerCreator getCreator() { |
| if (fCreator == null) { |
| fCreator = Adapters.adapt(fCompareEditor, OutlineViewerCreator.class); |
| if (fCreator != null) |
| fCreator.addPropertyChangeListener(this); |
| } |
| return fCreator; |
| } |
| |
| @Override |
| public void propertyChange(PropertyChangeEvent event) { |
| if (event.getProperty().equals(OutlineViewerCreator.PROP_INPUT)) { |
| fStructurePane.setInput(event.getNewValue()); |
| ((Splitter)fControl).layout(); |
| } |
| } |
| |
| @Override |
| public void dispose() { |
| super.dispose(); |
| if (fCreator != null) |
| fCreator.removePropertyChangeListener(this); |
| fCreator = null; |
| } |
| |
| public void reset() { |
| if (fCreator != null) |
| fCreator.removePropertyChangeListener(this); |
| fCreator = null; |
| OutlineViewerCreator creator = getCreator(); |
| if (creator != null) { |
| setInput(creator.getInput()); |
| } else { |
| setInput(null); |
| } |
| } |
| } |