| /******************************************************************************* |
| * 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 |
| *******************************************************************************/ |
| package org.eclipse.ui.internal.actions; |
| |
| import org.eclipse.jface.action.Action; |
| import org.eclipse.swt.custom.BusyIndicator; |
| import org.eclipse.ui.IWorkbenchCommandConstants; |
| import org.eclipse.ui.IWorkbenchPreferenceConstants; |
| import org.eclipse.ui.IWorkbenchWindow; |
| import org.eclipse.ui.PlatformUI; |
| import org.eclipse.ui.actions.ActionFactory.IWorkbenchAction; |
| import org.eclipse.ui.internal.IWorkbenchHelpContextIds; |
| import org.eclipse.ui.internal.WorkbenchMessages; |
| import org.eclipse.ui.internal.util.PrefUtil; |
| |
| /** |
| * Action to open the dynamic help. |
| * |
| * @since 3.1 |
| */ |
| public class DynamicHelpAction extends Action implements IWorkbenchAction { |
| /** |
| * The workbench window; or <code>null</code> if this action has been |
| * <code>dispose</code>d. |
| */ |
| private IWorkbenchWindow workbenchWindow; |
| |
| /** |
| * Zero-arg constructor to allow cheat sheets to reuse this action. |
| */ |
| public DynamicHelpAction() { |
| this(PlatformUI.getWorkbench().getActiveWorkbenchWindow()); |
| } |
| |
| /** |
| * Constructor for use by ActionFactory. |
| * |
| * @param window |
| * the window |
| */ |
| public DynamicHelpAction(IWorkbenchWindow window) { |
| if (window == null) { |
| throw new IllegalArgumentException(); |
| } |
| this.workbenchWindow = window; |
| setActionDefinitionId(IWorkbenchCommandConstants.HELP_DYNAMIC_HELP); |
| |
| // support for allowing a product to override the text for the action |
| String overrideText = PrefUtil.getAPIPreferenceStore().getString( |
| IWorkbenchPreferenceConstants.DYNAMIC_HELP_ACTION_TEXT); |
| if ("".equals(overrideText)) { //$NON-NLS-1$ |
| setText(appendAccelerator(WorkbenchMessages.DynamicHelpAction_text)); |
| setToolTipText(WorkbenchMessages.DynamicHelpAction_toolTip); |
| } else { |
| setText(appendAccelerator(overrideText)); |
| setToolTipText(Action.removeMnemonics(overrideText)); |
| } |
| window.getWorkbench().getHelpSystem().setHelp(this, |
| IWorkbenchHelpContextIds.DYNAMIC_HELP_ACTION); |
| } |
| |
| private String appendAccelerator(String text) { |
| // We know that on Windows context help key is F1 |
| // and cannot be changed by the user. |
| // |
| // Commented out due to the problem described in |
| // Bugzilla bug #95057 |
| |
| //if (Platform.getWS().equals(Platform.WS_WIN32)) |
| // return text + "\t" + KeyStroke.getInstance(SWT.F1).format(); //$NON-NLS-1$ |
| return text; |
| } |
| |
| /* |
| * (non-Javadoc) Method declared on IAction. |
| */ |
| public void run() { |
| if (workbenchWindow == null) { |
| // action has been disposed |
| return; |
| } |
| // This may take a while, so use the busy indicator |
| BusyIndicator.showWhile(null, new Runnable() { |
| public void run() { |
| workbenchWindow.getWorkbench().getHelpSystem() |
| .displayDynamicHelp(); |
| } |
| }); |
| } |
| |
| /* |
| * (non-Javadoc) Method declared on ActionFactory.IWorkbenchAction. |
| */ |
| public void dispose() { |
| workbenchWindow = null; |
| } |
| |
| } |