| package org.eclipse.team.internal.ccvs.ui.actions; |
| |
| /* |
| * (c) Copyright IBM Corp. 2000, 2002. |
| * All Rights Reserved. |
| */ |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| |
| import org.eclipse.compare.CompareUI; |
| import org.eclipse.core.runtime.IAdaptable; |
| import org.eclipse.jface.action.IAction; |
| import org.eclipse.jface.dialogs.MessageDialog; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.team.core.TeamException; |
| import org.eclipse.team.internal.ccvs.core.ICVSRemoteResource; |
| import org.eclipse.team.internal.ccvs.core.ILogEntry; |
| import org.eclipse.team.internal.ccvs.ui.CVSCompareEditorInput; |
| import org.eclipse.team.internal.ccvs.ui.Policy; |
| import org.eclipse.team.internal.ccvs.ui.ResourceEditionNode; |
| import org.eclipse.team.internal.ui.actions.TeamAction; |
| |
| /** |
| * This action is used for comparing two arbitrary remote resources. This is |
| * enabled in the repository explorer. |
| */ |
| public class CompareRemoteResourcesAction extends CVSAction { |
| |
| public void execute(IAction action) { |
| ICVSRemoteResource[] editions = getSelectedRemoteResources(); |
| if (editions == null || editions.length != 2) { |
| MessageDialog.openError(getShell(), Policy.bind("CompareRemoteResourcesAction.unableToCompare"), Policy.bind("CompareRemoteResourcesAction.selectTwoResources")); //$NON-NLS-1$ //$NON-NLS-2$ |
| return; |
| } |
| ResourceEditionNode left = new ResourceEditionNode(editions[0]); |
| ResourceEditionNode right = new ResourceEditionNode(editions[1]); |
| CompareUI.openCompareEditor(new CVSCompareEditorInput(left, right)); |
| } |
| |
| /** |
| * Returns the selected remote resources |
| */ |
| protected ICVSRemoteResource[] getSelectedRemoteResources() { |
| ArrayList resources = null; |
| if (!selection.isEmpty()) { |
| resources = new ArrayList(); |
| Iterator elements = ((IStructuredSelection)selection).iterator(); |
| while (elements.hasNext()) { |
| Object next = elements.next(); |
| if (next instanceof ICVSRemoteResource) { |
| resources.add(next); |
| continue; |
| } |
| if (next instanceof ILogEntry) { |
| resources.add(((ILogEntry)next).getRemoteFile()); |
| continue; |
| } |
| if (next instanceof IAdaptable) { |
| IAdaptable a = (IAdaptable) next; |
| Object adapter = a.getAdapter(ICVSRemoteResource.class); |
| if (adapter instanceof ICVSRemoteResource) { |
| resources.add(adapter); |
| continue; |
| } |
| } |
| } |
| } |
| if (resources != null && !resources.isEmpty()) { |
| ICVSRemoteResource[] result = new ICVSRemoteResource[resources.size()]; |
| resources.toArray(result); |
| return result; |
| } |
| return new ICVSRemoteResource[0]; |
| } |
| /* |
| * @see TeamAction#isEnabled() |
| */ |
| protected boolean isEnabled() throws TeamException { |
| ICVSRemoteResource[] resources = getSelectedRemoteResources(); |
| return resources.length == 2; |
| } |
| /* |
| * @see CVSAction#needsToSaveDirtyEditors() |
| */ |
| protected boolean needsToSaveDirtyEditors() { |
| return false; |
| } |
| } |