| /******************************************************************************* |
| * Copyright (c) 2000, 2005 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 |
| *******************************************************************************/ |
| package org.eclipse.jdt.ui.actions; |
| |
| import org.eclipse.core.resources.IFile; |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.core.runtime.IAdaptable; |
| |
| import org.eclipse.jface.action.IAction; |
| import org.eclipse.jface.action.IMenuManager; |
| import org.eclipse.jface.action.MenuManager; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.jface.viewers.ISelectionProvider; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| |
| import org.eclipse.ui.IActionBars; |
| import org.eclipse.ui.IViewPart; |
| import org.eclipse.ui.IWorkbenchSite; |
| import org.eclipse.ui.actions.ActionGroup; |
| import org.eclipse.ui.actions.OpenWithMenu; |
| |
| import org.eclipse.jdt.ui.IContextMenuConstants; |
| |
| import org.eclipse.jdt.internal.ui.actions.ActionMessages; |
| import org.eclipse.jdt.internal.ui.javaeditor.JavaEditor; |
| |
| /** |
| * Action group that adds the actions opening a new editor to the |
| * context menu and the action bar's navigate menu. |
| * |
| * <p> |
| * This class may be instantiated; it is not intended to be subclassed. |
| * </p> |
| * |
| * @since 2.0 |
| */ |
| public class OpenEditorActionGroup extends ActionGroup { |
| |
| private IWorkbenchSite fSite; |
| private boolean fIsEditorOwner; |
| private OpenAction fOpen; |
| |
| /** |
| * Creates a new <code>OpenActionGroup</code>. The group requires |
| * that the selection provided by the part's selection provider is of type <code> |
| * org.eclipse.jface.viewers.IStructuredSelection</code>. |
| * |
| * @param part the view part that owns this action group |
| */ |
| public OpenEditorActionGroup(IViewPart part) { |
| fSite= part.getSite(); |
| fOpen= new OpenAction(fSite); |
| fOpen.setActionDefinitionId(IJavaEditorActionDefinitionIds.OPEN_EDITOR); |
| initialize(fSite.getSelectionProvider()); |
| } |
| |
| /** |
| * Note: This constructor is for internal use only. Clients should not call this constructor. |
| * @param editor the Java editor |
| */ |
| public OpenEditorActionGroup(JavaEditor editor) { |
| fIsEditorOwner= true; |
| fOpen= new OpenAction(editor); |
| fOpen.setActionDefinitionId(IJavaEditorActionDefinitionIds.OPEN_EDITOR); |
| editor.setAction("OpenEditor", fOpen); //$NON-NLS-1$ |
| fSite= editor.getEditorSite(); |
| initialize(fSite.getSelectionProvider()); |
| } |
| |
| /** |
| * Returns the open action managed by this action group. |
| * |
| * @return the open action. Returns <code>null</code> if the group |
| * doesn't provide any open action |
| */ |
| public IAction getOpenAction() { |
| return fOpen; |
| } |
| |
| private void initialize(ISelectionProvider provider) { |
| ISelection selection= provider.getSelection(); |
| fOpen.update(selection); |
| if (!fIsEditorOwner) { |
| provider.addSelectionChangedListener(fOpen); |
| } |
| } |
| |
| /* (non-Javadoc) |
| * Method declared in ActionGroup |
| */ |
| public void fillActionBars(IActionBars actionBar) { |
| super.fillActionBars(actionBar); |
| setGlobalActionHandlers(actionBar); |
| } |
| |
| /* (non-Javadoc) |
| * Method declared in ActionGroup |
| */ |
| public void fillContextMenu(IMenuManager menu) { |
| super.fillContextMenu(menu); |
| appendToGroup(menu, fOpen); |
| if (!fIsEditorOwner) { |
| addOpenWithMenu(menu); |
| } |
| } |
| |
| /* |
| * @see ActionGroup#dispose() |
| */ |
| public void dispose() { |
| ISelectionProvider provider= fSite.getSelectionProvider(); |
| provider.removeSelectionChangedListener(fOpen); |
| super.dispose(); |
| } |
| |
| private void setGlobalActionHandlers(IActionBars actionBars) { |
| actionBars.setGlobalActionHandler(JdtActionConstants.OPEN, fOpen); |
| } |
| |
| private void appendToGroup(IMenuManager menu, IAction action) { |
| if (action.isEnabled()) |
| menu.appendToGroup(IContextMenuConstants.GROUP_OPEN, action); |
| } |
| |
| private void addOpenWithMenu(IMenuManager menu) { |
| ISelection selection= getContext().getSelection(); |
| if (selection.isEmpty() || !(selection instanceof IStructuredSelection)) |
| return; |
| IStructuredSelection ss= (IStructuredSelection)selection; |
| if (ss.size() != 1) |
| return; |
| |
| Object o= ss.getFirstElement(); |
| if (!(o instanceof IAdaptable)) |
| return; |
| |
| IAdaptable element= (IAdaptable)o; |
| Object resource= element.getAdapter(IResource.class); |
| if (!(resource instanceof IFile)) |
| return; |
| |
| // Create a menu. |
| IMenuManager submenu= new MenuManager(ActionMessages.OpenWithMenu_label); |
| submenu.add(new OpenWithMenu(fSite.getPage(), (IFile) resource)); |
| |
| // Add the submenu. |
| menu.appendToGroup(IContextMenuConstants.GROUP_OPEN, submenu); |
| } |
| } |