| /******************************************************************************* |
| * Copyright (c) 2008, 2010 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.team.internal.ui.actions; |
| |
| import java.lang.reflect.InvocationTargetException; |
| |
| import org.eclipse.compare.CompareEditorInput; |
| import org.eclipse.compare.CompareUI; |
| import org.eclipse.compare.ITypedElement; |
| import org.eclipse.core.resources.IFile; |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.jface.action.IAction; |
| import org.eclipse.jface.dialogs.IDialogConstants; |
| import org.eclipse.jface.dialogs.MessageDialog; |
| import org.eclipse.jface.window.Window; |
| import org.eclipse.osgi.util.NLS; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.events.SelectionAdapter; |
| import org.eclipse.swt.events.SelectionEvent; |
| import org.eclipse.swt.events.SelectionListener; |
| import org.eclipse.swt.layout.GridLayout; |
| import org.eclipse.swt.widgets.Button; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Control; |
| import org.eclipse.swt.widgets.Shell; |
| import org.eclipse.team.internal.ui.TeamUIMessages; |
| import org.eclipse.team.internal.ui.Utils; |
| import org.eclipse.team.internal.ui.history.CompareFileRevisionEditorInput; |
| import org.eclipse.team.internal.ui.synchronize.SaveablesCompareEditorInput; |
| import org.eclipse.ui.IEditorInput; |
| import org.eclipse.ui.IEditorPart; |
| import org.eclipse.ui.IReusableEditor; |
| import org.eclipse.ui.IWorkbenchPage; |
| |
| public class CompareAction extends TeamAction { |
| |
| @Override |
| protected void execute(IAction action) throws InvocationTargetException, |
| InterruptedException { |
| |
| IResource[] selectedResources = getSelectedResources(); |
| |
| ITypedElement ancestor = null; |
| ITypedElement left = null; |
| ITypedElement right = null; |
| |
| if (selectedResources.length == 2) { |
| if (selectedResources[0] != null) |
| left = getElementFor(selectedResources[0]); |
| |
| if (selectedResources[1] != null) |
| right = getElementFor(selectedResources[1]); |
| |
| } else if (selectedResources.length == 3) { |
| // prompt for ancestor |
| SelectAncestorDialog dialog = new SelectAncestorDialog(getShell(), |
| selectedResources); |
| int code = dialog.open(); |
| if (code != Window.OK) |
| return; |
| |
| ancestor = getElementFor(dialog.ancestorResource); |
| left = getElementFor(dialog.leftResource); |
| right = getElementFor(dialog.rightResource); |
| } else { |
| return; |
| } |
| openInCompare(ancestor, left, right); |
| } |
| |
| private void openInCompare(ITypedElement ancestor, ITypedElement left, |
| ITypedElement right) { |
| IWorkbenchPage workBenchPage = getTargetPage(); |
| CompareEditorInput input = new SaveablesCompareEditorInput(ancestor, |
| left, right, workBenchPage); |
| IEditorPart editor = Utils.findReusableCompareEditor(input, |
| workBenchPage, |
| new Class[] { CompareFileRevisionEditorInput.class }); |
| if (editor != null) { |
| IEditorInput otherInput = editor.getEditorInput(); |
| if (otherInput.equals(input)) { |
| // simply provide focus to editor |
| workBenchPage.activate(editor); |
| } else { |
| // if editor is currently not open on that input either re-use |
| // existing |
| CompareUI.reuseCompareEditor(input, (IReusableEditor) editor); |
| workBenchPage.activate(editor); |
| } |
| } else { |
| CompareUI.openCompareEditor(input); |
| } |
| } |
| |
| @Override |
| public boolean isEnabled() { |
| int l = getSelectedResources().length; |
| return l == 2 || l == 3; |
| } |
| |
| private ITypedElement getElementFor(IResource resource) { |
| return SaveablesCompareEditorInput.createFileElement((IFile) resource); |
| } |
| |
| // see |
| // org.eclipse.compare.internal.ResourceCompareInput.SelectAncestorDialog |
| private class SelectAncestorDialog extends MessageDialog { |
| private IResource[] theResources; |
| IResource ancestorResource; |
| IResource leftResource; |
| IResource rightResource; |
| |
| private Button[] buttons; |
| |
| public SelectAncestorDialog(Shell parentShell, IResource[] theResources) { |
| super(parentShell, TeamUIMessages.SelectAncestorDialog_title, null, |
| TeamUIMessages.SelectAncestorDialog_message, |
| MessageDialog.QUESTION, new String[] { |
| IDialogConstants.OK_LABEL, |
| IDialogConstants.CANCEL_LABEL }, 0); |
| this.theResources = theResources; |
| } |
| |
| @Override |
| protected Control createCustomArea(Composite parent) { |
| Composite composite = new Composite(parent, SWT.NONE); |
| composite.setLayout(new GridLayout()); |
| buttons = new Button[3]; |
| for (int i = 0; i < 3; i++) { |
| buttons[i] = new Button(composite, SWT.RADIO); |
| buttons[i].addSelectionListener(selectionListener); |
| buttons[i].setText(NLS.bind( |
| TeamUIMessages.SelectAncestorDialog_option, |
| theResources[i].getFullPath().toPortableString())); |
| buttons[i].setFont(parent.getFont()); |
| // set initial state |
| buttons[i].setSelection(i == 0); |
| } |
| pickAncestor(0); |
| return composite; |
| } |
| |
| private void pickAncestor(int i) { |
| ancestorResource = theResources[i]; |
| leftResource = theResources[i == 0 ? 1 : 0]; |
| rightResource = theResources[i == 2 ? 1 : 2]; |
| } |
| |
| private SelectionListener selectionListener = new SelectionAdapter() { |
| @Override |
| public void widgetSelected(SelectionEvent e) { |
| Button selectedButton = (Button) e.widget; |
| if (!selectedButton.getSelection()) |
| return; |
| for (int i = 0; i < 3; i++) |
| if (selectedButton == buttons[i]) |
| pickAncestor(i); |
| } |
| }; |
| } |
| |
| } |