org.eclipse.rap.incubator.texteditor.demo.commands.NewFileCommandHandler.java Source code

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Here is the source code for org.eclipse.rap.incubator.texteditor.demo.commands.NewFileCommandHandler.java

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/**
 * <copyright>
 *
 * Copyright (c) 2015 PlugBee. 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:
 *     PlugBee - Initial API and implementation
 *
 * </copyright>
 */
package org.eclipse.rap.incubator.texteditor.demo.commands;

import java.io.File;
import java.io.IOException;

import org.apache.log4j.Logger;
import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.Path;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.wizard.WizardDialog;
import org.eclipse.rap.incubator.texteditor.demo.ITextEditorDemoConfiguration;
import org.eclipse.rap.incubator.texteditor.demo.internal.Activator;
import org.eclipse.rap.incubator.texteditor.demo.wizards.NewFileWizard;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.PlatformUI;

public class NewFileCommandHandler extends AbstractHandler {

    static final Logger logger = Logger.getLogger(NewFileCommandHandler.class);

    public NewFileCommandHandler() {
    }

    @Override
    public boolean isEnabled() {
        return true;
    }

    @Override
    public Object execute(ExecutionEvent event) throws ExecutionException {
        Shell activeShell = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell();
        File file = CommandUtil.unwrap(event, File.class);
        if (file == null) {
            IPreferenceStore store = Activator.getDefault().getPreferenceStore();
            String path = store.getDefaultString(ITextEditorDemoConfiguration.WORKSPACE_SETTING);
            file = new Path(path).toFile();
        }
        NewFileWizard wizard = new NewFileWizard(file);
        StructuredSelection selection = new StructuredSelection(file);
        wizard.init(PlatformUI.getWorkbench(), selection);
        WizardDialog wizardDialog = new WizardDialog(activeShell, wizard);
        wizardDialog.create();
        wizardDialog.getShell().setSize(400, 400);
        Rectangle bounds = activeShell.getBounds();
        Rectangle rect = wizardDialog.getShell().getBounds();
        int x = bounds.x + (bounds.width - rect.width) / 2;
        int y = bounds.y + (bounds.height - rect.height) / 2;
        wizardDialog.getShell().setLocation(x, y);
        return wizardDialog.open();
    }

    public void createFile(IPath filePath) {
        final File file = filePath.toFile();
        if (!file.exists()) {
            Display.getCurrent().syncExec(new Runnable() {
                @Override
                public void run() {
                    try {
                        file.createNewFile();
                    } catch (IOException ex) {
                        logger.error(ex.getMessage(), ex);
                    }
                }
            });
        }
    }
}