| /*=============================================================================# |
| # Copyright (c) 2012, 2019 Stephan Wahlbrink and others. |
| # |
| # This program and the accompanying materials are made available under the |
| # terms of the Eclipse Public License 2.0 which is available at |
| # https://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0 |
| # which is available at https://www.apache.org/licenses/LICENSE-2.0. |
| # |
| # SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 |
| # |
| # Contributors: |
| # Stephan Wahlbrink <sw@wahlbrink.eu> - initial API and implementation |
| #=============================================================================*/ |
| |
| package org.eclipse.statet.r.ui.rhelp; |
| |
| import java.net.URI; |
| |
| import org.eclipse.core.commands.AbstractHandler; |
| import org.eclipse.core.commands.ExecutionEvent; |
| import org.eclipse.core.commands.ExecutionException; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.ui.statushandlers.StatusManager; |
| |
| import org.eclipse.statet.jcommons.lang.Nullable; |
| |
| import org.eclipse.statet.ecommons.ui.mpbv.BrowserSession; |
| import org.eclipse.statet.ecommons.ui.util.UIAccess; |
| import org.eclipse.statet.ecommons.ui.util.UIAccess.CheckedRunnable; |
| |
| import org.eclipse.statet.internal.r.ui.rhelp.RHelpView; |
| import org.eclipse.statet.nico.ui.NicoUITools; |
| import org.eclipse.statet.r.console.core.RProcess; |
| import org.eclipse.statet.r.core.RCore; |
| import org.eclipse.statet.r.ui.RUI; |
| import org.eclipse.statet.rhelp.core.http.RHelpHttpService; |
| import org.eclipse.statet.rj.renv.core.REnv; |
| |
| |
| public class OpenRHelpHandler extends AbstractHandler { |
| |
| |
| private final REnv rEnv; |
| private final RProcess tool; |
| |
| private final boolean reuse; |
| |
| |
| public OpenRHelpHandler(final REnv rEnv, final RProcess tool, final boolean reuse) { |
| if (rEnv == null) { |
| throw new NullPointerException("rEnv"); //$NON-NLS-1$ |
| } |
| this.rEnv= rEnv; |
| this.tool= tool; |
| this.reuse= reuse; |
| } |
| |
| |
| @Override |
| public @Nullable Object execute(final ExecutionEvent event) throws ExecutionException { |
| return execute(event.getParameter("url")); //$NON-NLS-1$ |
| } |
| |
| public @Nullable IStatus execute(final String urlString) { |
| final RProcess tool= this.tool; |
| final URI url; |
| if (urlString == null || urlString.isEmpty() |
| || urlString.equals("about:blank")) { //$NON-NLS-1$ |
| url= RCore.getRHelpHttpService().getREnvHttpUrl( |
| this.rEnv, RHelpHttpService.BROWSE_TARGET ); |
| } |
| else { |
| url= RCore.getRHelpHttpService().toHttpUrl( |
| urlString, this.rEnv, RHelpHttpService.BROWSE_TARGET ); |
| } |
| if (url == null) { |
| return null; |
| } |
| try { |
| UIAccess.checkedSyncExec(new CheckedRunnable() { |
| @Override |
| public void run() throws CoreException { |
| final RHelpView view= (RHelpView) NicoUITools.getView(RUI.R_HELP_VIEW_ID, tool, true); |
| view.openUrl(url, (OpenRHelpHandler.this.reuse) ? |
| BrowserSession.findSessionByUrl(view.getSessions(), url) : |
| null ); |
| } |
| }); |
| return Status.OK_STATUS; |
| } |
| catch (final CoreException e) { |
| final IStatus status= new Status(IStatus.ERROR, RUI.BUNDLE_ID, |
| "An error occured when opening R help page in R help view.", |
| e ); |
| StatusManager.getManager().handle(status); |
| return status; |
| } |
| } |
| |
| } |