r/org.eclipse.statet.nico.ui/src/org/eclipse/statet/nico/ui/util/EclipseIDEOperationsHandler.java

/*=============================================================================#
 # Copyright (c) 2009, 2020 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.nico.ui.util;

import java.util.Map;

import org.eclipse.core.filesystem.IFileStore;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IWorkspaceRoot;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.ide.IDE;

import org.eclipse.statet.jcommons.status.ErrorStatus;
import org.eclipse.statet.jcommons.status.ProgressMonitor;
import org.eclipse.statet.jcommons.status.Status;
import org.eclipse.statet.jcommons.status.Statuses;
import org.eclipse.statet.jcommons.status.eplatform.EStatusUtils;
import org.eclipse.statet.jcommons.ts.core.util.ToolCommandHandlerUtils;

import org.eclipse.statet.ecommons.ui.util.UIAccess;

import org.eclipse.statet.internal.nico.ui.AbstractConsoleCommandHandler;
import org.eclipse.statet.nico.core.runtime.ConsoleService;
import org.eclipse.statet.nico.core.runtime.IToolEventHandler;
import org.eclipse.statet.nico.core.runtime.ToolWorkspace;
import org.eclipse.statet.nico.ui.NicoUI;
import org.eclipse.statet.nico.ui.views.HistoryView;


/**
 * Handles in Eclipse IDE Platform:
 *  {@link IToolEventHandler#SHOW_HISTORY_ID} - shows the history view
 * 
 */
public class EclipseIDEOperationsHandler extends AbstractConsoleCommandHandler {
	
	
	public static final String SHOW_FILE_ID = "common/showFile"; //$NON-NLS-1$
	
	public static final String SHOW_HISTORY_ID = "common/showHistory"; //$NON-NLS-1$
	
	
	@Override
	public Status execute(final String id, final ConsoleService service, final Map<String, Object> data,
			final ProgressMonitor m) {
		if (id.equals(SHOW_FILE_ID)) {
			final IFileStore fileStore;
			final IFile workspaceFile;
			String fileName = ToolCommandHandlerUtils.getCheckedData(data, "filename", String.class, false); //$NON-NLS-1$
			if (fileName == null) {
				fileName = ToolCommandHandlerUtils.getCheckedData(data, "fileName", String.class, true); //$NON-NLS-1$
			}
			final ToolWorkspace workspaceData = service.getWorkspaceData();
			try {
				fileStore = workspaceData.toFileStore(fileName);
				workspaceFile = getWorkspaceFile(fileStore, m);
			}
			catch (final CoreException e) {
				final Status status= new ErrorStatus(NicoUI.BUNDLE_ID,
						"Failed to resolve filename.",
						e );
				service.handleStatus(status, m);
				return status;
			}
			final Display display = UIAccess.getDisplay();
			display.syncExec(new Runnable() {
				@Override
				public void run() {
					final IWorkbenchPage page = NicoUI.getToolRegistry().findWorkbenchPage(service.getTool());
					try {
						if (workspaceFile != null) {
							IDE.openEditor(page, workspaceFile);
						}
						else {
							IDE.openEditorOnFileStore(page, fileStore);
						}
					}
					catch (final PartInitException e) {
						final Status status= new ErrorStatus(NicoUI.BUNDLE_ID,
								"An error occurred when trying open/activate the Editor.",
								e );
						service.handleStatus(status, m);
					}
				}
			});
			return Statuses.OK_STATUS;
		}
		if (id.equals(SHOW_HISTORY_ID)) {
			final String pattern = ToolCommandHandlerUtils.getCheckedData(data, "pattern", String.class, false); //$NON-NLS-1$
			final Display display = UIAccess.getDisplay();
			display.syncExec(new Runnable() {
				@Override
				public void run() {
					try {
						final IWorkbenchPage page = NicoUI.getToolRegistry().findWorkbenchPage(service.getTool());
						final HistoryView view = (HistoryView) page.showView(NicoUI.HISTORY_VIEW_ID);
						if (pattern != null) {
							view.search(pattern, false);
						}
					}
					catch (final PartInitException e) {
						final Status status= new ErrorStatus(NicoUI.BUNDLE_ID,
								"An error occurred when trying open/activate the History view.",
								e );
						service.handleStatus(status, m);
					}
				}
			});
			return Statuses.OK_STATUS;
		}
		throw new UnsupportedOperationException();
	}
	
	private IFile getWorkspaceFile(final IFileStore fileStore, final ProgressMonitor m) throws CoreException {
		final IWorkspaceRoot root = ResourcesPlugin.getWorkspace().getRoot();
		final IFile[] files = root.findFilesForLocationURI(fileStore.toURI());
		if (files != null && files.length > 0) {
			final IFile file = files[0];
			if (!file.exists()) { // Bug 549546
				file.refreshLocal(0, EStatusUtils.convert(m));
			}
			return file;
		}
		return null;
	}
	
}