| /******************************************************************************* |
| * Copyright (c) 2000, 2018 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.debug.internal.ui.sourcelookup; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.debug.core.DebugPlugin; |
| import org.eclipse.debug.core.IStatusHandler; |
| import org.eclipse.debug.internal.ui.DebugUIPlugin; |
| import org.eclipse.debug.ui.IDebugUIConstants; |
| import org.eclipse.swt.widgets.Display; |
| |
| /** |
| * Prompts the user in the UI (asynchronously), on behalf of a non-UI client, |
| * blocking the calling thread until a response is received. |
| * <p> |
| * This status handler is registered for for the debug UI plug-in, |
| * with a status code of <code>STATUS_HANDLER_PROMPT</code>. |
| * </p> |
| * @since 3.0 |
| */ |
| public class Prompter implements IStatusHandler { |
| /** |
| * Prompts the user for input based on the given status and source |
| * object, blocking the calling thread until the status is resolved. |
| * |
| * @param status client status code for which a status handler must |
| * be registered |
| * @param source object requesting the status to be resolved |
| * @return result of resolving the given status |
| * @see org.eclipse.debug.core.IStatusHandler#handleStatus(org.eclipse.core.runtime.IStatus, java.lang.Object) |
| */ |
| @Override |
| public Object handleStatus(final IStatus status, final Object source) throws CoreException { |
| DebugPlugin dp = DebugPlugin.getDefault(); |
| // on shutdown the debug plug-in can be null |
| if (dp == null) { |
| throw new CoreException(new Status(IStatus.INFO, |
| IDebugUIConstants.PLUGIN_ID, |
| IStatus.OK, |
| SourceLookupUIMessages.Prompter_0, |
| null)); |
| } |
| final IStatusHandler handler = dp.getStatusHandler(status); |
| if (handler == null) { |
| throw new CoreException(new Status(IStatus.ERROR, |
| IDebugUIConstants.PLUGIN_ID, |
| IStatus.OK, |
| SourceLookupUIMessages.Prompter_0, |
| null)); |
| } |
| Display display = DebugUIPlugin.getStandardDisplay(); |
| if (display.getThread().equals(Thread.currentThread())) { |
| return handler.handleStatus(status, source); |
| } |
| final Object[] result = new Object[1]; |
| final CoreException[] exception = new CoreException[1]; |
| final Object lock = this; |
| Runnable r = () -> { |
| try { |
| result[0] = handler.handleStatus(status, source); |
| } catch (CoreException e) { |
| exception[0] = e; |
| } |
| synchronized (lock) { |
| lock.notifyAll(); |
| } |
| }; |
| DebugUIPlugin.getStandardDisplay().syncExec(r); |
| |
| if (exception[0] != null ) { |
| throw exception[0]; |
| } |
| return result[0]; |
| } |
| } |