| /******************************************************************************* |
| * Copyright (c) 2005, 2017 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.cheatsheets; |
| |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Platform; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.jface.action.IAction; |
| import org.eclipse.jface.util.IPropertyChangeListener; |
| import org.eclipse.osgi.util.NLS; |
| import org.eclipse.ui.cheatsheets.ICheatSheetAction; |
| import org.eclipse.ui.internal.cheatsheets.data.Action; |
| import org.eclipse.ui.internal.cheatsheets.views.CheatSheetManager; |
| import org.osgi.framework.Bundle; |
| |
| /** |
| * Class which can run actions and determine the outcome |
| */ |
| public class ActionRunner { |
| public IStatus runAction(Action cheatSheetAction, CheatSheetManager csm) { |
| |
| IStatus status = Status.OK_STATUS; |
| String pluginId = cheatSheetAction.getPluginID(); |
| String className = cheatSheetAction.getActionClass(); |
| String[] params = cheatSheetAction.getParams(); |
| Bundle bundle = Platform.getBundle(pluginId); |
| if (bundle == null) { |
| String message = NLS.bind(Messages.ERROR_FINDING_PLUGIN_FOR_ACTION, (new Object[] {pluginId})); |
| return new Status(IStatus.ERROR, ICheatSheetResource.CHEAT_SHEET_PLUGIN_ID, IStatus.OK, message, null); |
| } |
| Class<?> actionClass; |
| IAction action; |
| try { |
| actionClass = bundle.loadClass(className); |
| } catch (Exception e) { |
| String message = NLS.bind(Messages.ERROR_LOADING_CLASS_FOR_ACTION, (new Object[] {className})); |
| return new Status(IStatus.ERROR, ICheatSheetResource.CHEAT_SHEET_PLUGIN_ID, IStatus.OK, message, e); |
| } |
| try { |
| action = (IAction) actionClass.newInstance(); |
| } catch (Exception e) { |
| String message = NLS.bind(Messages.ERROR_CREATING_CLASS_FOR_ACTION, (new Object[] {className})); |
| return new Status(IStatus.ERROR, ICheatSheetResource.CHEAT_SHEET_PLUGIN_ID, IStatus.OK, message, e); |
| } |
| |
| final boolean[] listenerFired = { false }; |
| final boolean[] listenerResult = { false }; |
| IPropertyChangeListener propertyChangeListener = event -> { |
| if (event.getProperty().equals(IAction.RESULT) && event.getNewValue() instanceof Boolean) { |
| listenerFired[0] = true; |
| listenerResult[0] = ((Boolean) event.getNewValue()).booleanValue(); |
| } |
| }; |
| |
| // Add PropertyChangeListener to the action, so we can detemine if a action was succesfull |
| action.addPropertyChangeListener(propertyChangeListener); |
| |
| // Run the action for this ViewItem |
| if (action instanceof ICheatSheetAction) { |
| // Prepare parameters |
| String[] clonedParams = null; |
| if(params != null && params.length > 0) { |
| clonedParams = new String[params.length]; |
| System.arraycopy(params, 0, clonedParams, 0, params.length); |
| for (int i = 0; i < clonedParams.length; i++) { |
| String param = clonedParams[i]; |
| if(param != null && param.startsWith("${") && param.endsWith("}")) { //$NON-NLS-1$ //$NON-NLS-2$ |
| param = param.substring(2,param.length()-1); |
| String value = csm.getDataQualified(param); |
| clonedParams[i] = value == null ? ICheatSheetResource.EMPTY_STRING : value; |
| } |
| } |
| } |
| ((ICheatSheetAction) action).run(clonedParams, csm); |
| } else { |
| try { |
| action.run(); |
| } catch (Throwable e) { |
| status = new Status(IStatus.ERROR, ICheatSheetResource.CHEAT_SHEET_PLUGIN_ID, IStatus.OK, Messages.EXCEPTION_RUNNING_ACTION, e); |
| } |
| } |
| |
| // Remove the PropertyChangeListener |
| action.removePropertyChangeListener(propertyChangeListener); |
| |
| if (status.isOK() && listenerFired[0]) { |
| if (!listenerResult[0]) { |
| status =new Status(IStatus.WARNING, ICheatSheetResource.CHEAT_SHEET_PLUGIN_ID, IStatus.OK, Messages.ACTION_FAILED, null); |
| } |
| } |
| |
| return status; |
| } |
| |
| } |