| /* |
| * (c) Copyright IBM Corp. 2000, 2001. |
| * All Rights Reserved. |
| */ |
| package org.eclipse.compare; |
| |
| import java.util.ResourceBundle; |
| import org.eclipse.jface.action.Action; |
| |
| import org.eclipse.compare.internal.CompareNavigator; |
| import org.eclipse.compare.internal.CompareUIPlugin; |
| import org.eclipse.compare.internal.Utilities; |
| |
| /** |
| * A <code>NavigationAction</code> is used to navigate through the individual |
| * differences of a <code>CompareEditorInput</code>. |
| * <p> |
| * Clients may instantiate this class; it is not intended to be subclassed. |
| * </p> |
| * @since 2.0 |
| */ |
| public class NavigationAction extends Action { |
| |
| private boolean fNext; |
| private CompareEditorInput fCompareEditorInput; |
| |
| |
| /** |
| * Creates a <code>NavigationAction</code>. |
| * |
| * @param next if <code>true</code> action goes to the next difference; otherwise to the previous difference. |
| */ |
| public NavigationAction(boolean next) { |
| this(CompareUIPlugin.getResourceBundle(), next); |
| } |
| |
| /** |
| * Creates a <code>NavigationAction</code> that initializes its attributes |
| * from the given <code>ResourceBundle</code>. |
| * |
| * @param bundle is used to initialize the action |
| * @param next if <code>true</code> action goes to the next difference; otherwise to the previous difference. |
| */ |
| public NavigationAction(ResourceBundle bundle, boolean next) { |
| Utilities.initAction(this, bundle, next ? "action.Next." : "action.Previous."); //$NON-NLS-2$ //$NON-NLS-1$ |
| fNext= next; |
| } |
| |
| public void run() { |
| if (fCompareEditorInput != null) { |
| Object adapter= fCompareEditorInput.getAdapter(CompareNavigator.class); |
| if (adapter instanceof CompareNavigator) |
| ((CompareNavigator)adapter).selectChange(fNext); |
| } |
| } |
| |
| /** |
| * Sets the <code>CompareEditorInput</code> on which this action operates. |
| * |
| * @param input the <code>CompareEditorInput</code> on which this action operates; if <code>null</code> action does nothing |
| */ |
| public void setCompareEditorInput(CompareEditorInput input) { |
| fCompareEditorInput= input; |
| } |
| } |