| /******************************************************************************* |
| * Copyright (c) 2005, 2009 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 |
| * Wind River Systems - adapted action to use for breakpoint types |
| ******************************************************************************/ |
| package org.eclipse.debug.ui.actions; |
| |
| import java.util.Iterator; |
| import java.util.Set; |
| |
| import org.eclipse.debug.internal.ui.actions.ToggleBreakpointsTargetManager; |
| import org.eclipse.jface.action.Action; |
| import org.eclipse.jface.action.ActionContributionItem; |
| import org.eclipse.jface.action.IAction; |
| import org.eclipse.jface.action.IMenuCreator; |
| import org.eclipse.jface.action.IMenuListener; |
| import org.eclipse.jface.action.IMenuManager; |
| import org.eclipse.jface.text.BadLocationException; |
| import org.eclipse.jface.text.IDocument; |
| import org.eclipse.jface.text.IRegion; |
| import org.eclipse.jface.text.TextSelection; |
| import org.eclipse.jface.text.source.IVerticalRulerInfo; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.jface.viewers.StructuredSelection; |
| import org.eclipse.swt.events.MenuAdapter; |
| import org.eclipse.swt.events.MenuEvent; |
| import org.eclipse.swt.widgets.Control; |
| import org.eclipse.swt.widgets.Menu; |
| import org.eclipse.swt.widgets.MenuItem; |
| import org.eclipse.ui.IEditorActionDelegate; |
| import org.eclipse.ui.IEditorPart; |
| import org.eclipse.ui.texteditor.IDocumentProvider; |
| import org.eclipse.ui.texteditor.ITextEditor; |
| import org.eclipse.ui.texteditor.ITextEditorExtension; |
| |
| /** |
| * Breakpoint ruler pop-up action that creates a sub-menu to select the currently |
| * active breakpoint type. This action delegate can be contributed to an editor |
| * with the <code>editorActions</code> extension point. The breakpoint types are |
| * calculated based on the toggle breakpoint target factories contributed through |
| * the <code>toggleBreakpointsTargetFactories</code> extension point. |
| * <p> |
| * Following is example plug-in XML used to contribute this action to an editor's |
| * vertical ruler context menu. It uses the <code>popupMenus</code> extension |
| * point, by referencing the ruler's context menu identifier in the |
| * <code>targetID</code> attribute. |
| * <pre> |
| * <extension point="org.eclipse.ui.popupMenus"> |
| * <viewerContribution |
| * targetID="example.rulerContextMenuId" |
| * id="example.RulerPopupActions"> |
| * <action |
| * label="Toggle Breakpoint" |
| * class="org.eclipse.debug.ui.actions.RulerBreakpointTypesActionDelegate" |
| * menubarPath="additions" |
| * id="example.rulerContextMenu.breakpointTypesAction"> |
| * </action> |
| * </viewerContribution> |
| * </pre> |
| * </p> |
| * <p> |
| * Clients may refer to this class as an action delegate in plug-in XML. This class |
| * is not intended to be subclassed. |
| * </p> |
| * @see ToggleBreakpointsTargetManager |
| * @see IToggleBreakpointsTargetFactory |
| * @noextend This class is not intended to be subclassed by clients. |
| * @since 3.5 |
| * |
| */ |
| public class RulerBreakpointTypesActionDelegate implements IEditorActionDelegate, IMenuListener, IMenuCreator { |
| private ITextEditor fEditor = null; |
| private IAction fCallerAction = null; |
| private IVerticalRulerInfo fRulerInfo; |
| private ISelection fSelection; |
| |
| /** |
| * The menu created by this action |
| */ |
| private Menu fMenu; |
| |
| private class SelectTargetAction extends Action { |
| private final Set fPossibleIDs; |
| private final String fID; |
| SelectTargetAction(String name, Set possibleIDs, String ID) { |
| super(name, AS_RADIO_BUTTON); |
| fID = ID; |
| fPossibleIDs = possibleIDs; |
| } |
| |
| public void run() { |
| if (isChecked()) { |
| ToggleBreakpointsTargetManager.getDefault().setPreferredTarget(fPossibleIDs, fID); |
| } |
| } |
| } |
| |
| |
| public void selectionChanged(IAction action, ISelection selection) { |
| // In the editor we're not using the selection. |
| } |
| |
| public void run(IAction action) { |
| // Do nothing, this is a pull-down menu. |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IEditorActionDelegate#setActiveEditor(org.eclipse.jface.action.IAction, org.eclipse.ui.IEditorPart) |
| */ |
| public void setActiveEditor(IAction callerAction, IEditorPart targetEditor) { |
| // Clean up old editor data. |
| if (fCallerAction != null) { |
| fCallerAction.setMenuCreator(null); |
| } |
| if (fEditor instanceof ITextEditorExtension) { |
| ((ITextEditorExtension) fEditor).removeRulerContextMenuListener(this); |
| } |
| fRulerInfo = null; |
| |
| // Set up new editor data. |
| fCallerAction = callerAction; |
| fCallerAction.setMenuCreator(this); |
| |
| fEditor= (ITextEditor)(targetEditor == null ? null : targetEditor.getAdapter(ITextEditor.class)); |
| |
| if (fEditor != null) { |
| if (fEditor instanceof ITextEditorExtension) { |
| ((ITextEditorExtension) fEditor).addRulerContextMenuListener(this); |
| } |
| |
| fRulerInfo= (IVerticalRulerInfo) fEditor.getAdapter(IVerticalRulerInfo.class); |
| } |
| |
| } |
| |
| public void dispose() { |
| if (fCallerAction != null) { |
| fCallerAction.setMenuCreator(null); |
| } |
| if (fEditor instanceof ITextEditorExtension) { |
| ((ITextEditorExtension) fEditor).removeRulerContextMenuListener(this); |
| } |
| fRulerInfo = null; |
| } |
| |
| public void menuAboutToShow(IMenuManager manager) { |
| fSelection = StructuredSelection.EMPTY; |
| if (fEditor != null && fRulerInfo != null) { |
| |
| IDocumentProvider provider = fEditor.getDocumentProvider(); |
| if (provider != null) { |
| IDocument document = provider.getDocument(fEditor.getEditorInput()); |
| int line = fRulerInfo.getLineOfLastMouseButtonActivity(); |
| if (line > -1) { |
| try { |
| IRegion region = document.getLineInformation(line); |
| fSelection = new TextSelection(document, region.getOffset(), 0); |
| } catch (BadLocationException e) {} |
| } |
| } |
| ToggleBreakpointsTargetManager toggleTargetManager = ToggleBreakpointsTargetManager.getDefault(); |
| Set enabledIDs = toggleTargetManager.getEnabledToggleBreakpointsTargetIDs(fEditor, fSelection); |
| fCallerAction.setEnabled(enabledIDs.size() > 0); |
| } else { |
| fCallerAction.setEnabled(false); |
| } |
| |
| } |
| |
| /** |
| * Sets this action's drop-down menu, disposing the previous menu. |
| * |
| * @param menu the new menu |
| */ |
| private void setMenu(Menu menu) { |
| if (fMenu != null) { |
| fMenu.dispose(); |
| } |
| fMenu = menu; |
| } |
| |
| public Menu getMenu(Menu parent) { |
| setMenu(new Menu(parent)); |
| fillMenu(fMenu); |
| initMenu(); |
| return fMenu; |
| } |
| |
| public Menu getMenu(Control parent) { |
| setMenu(new Menu(parent)); |
| fillMenu(fMenu); |
| initMenu(); |
| return fMenu; |
| } |
| |
| /** |
| * Fills the drop-down menu with enabled toggle breakpoint targets |
| * |
| * @param menu the menu to fill |
| */ |
| private void fillMenu(Menu menu) { |
| ToggleBreakpointsTargetManager manager = ToggleBreakpointsTargetManager.getDefault(); |
| Set enabledIDs = manager.getEnabledToggleBreakpointsTargetIDs(fEditor, fSelection); |
| String preferredId = manager.getPreferredToggleBreakpointsTargetID(fEditor, fSelection); |
| |
| for (Iterator itr = enabledIDs.iterator(); itr.hasNext();) { |
| String id = (String)itr.next(); |
| SelectTargetAction action= new SelectTargetAction(manager.getToggleBreakpointsTargetName(id), enabledIDs, id); |
| |
| if (id.equals(preferredId)){ |
| action.setChecked(true); |
| } |
| |
| ActionContributionItem item= new ActionContributionItem(action); |
| item.fill(menu, -1); |
| } |
| } |
| |
| /** |
| * Creates the menu for the action |
| */ |
| private void initMenu() { |
| // Add listener to re-populate the menu each time |
| // it is shown because of dynamic history list |
| fMenu.addMenuListener(new MenuAdapter() { |
| public void menuShown(MenuEvent e) { |
| Menu m = (Menu)e.widget; |
| MenuItem[] items = m.getItems(); |
| for (int i=0; i < items.length; i++) { |
| items[i].dispose(); |
| } |
| fillMenu(m); |
| } |
| }); |
| } |
| |
| } |