org.jboss.tools.vpe.preview.editor.EngineDialog.java Source code

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Here is the source code for org.jboss.tools.vpe.preview.editor.EngineDialog.java

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/*******************************************************************************
 * Copyright (c) 2015 Red Hat, Inc.
 * Distributed under license by Red Hat, Inc. All rights reserved.
 * This program is 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
 *
 * Contributor:
 *     Red Hat, Inc. - initial API and implementation
 ******************************************************************************/
package org.jboss.tools.vpe.preview.editor;

import static org.jboss.tools.vpe.messages.VpeUIMessages.ENGINE_DIALOG_CHANGE_TO;
import static org.jboss.tools.vpe.messages.VpeUIMessages.ENGINE_DIALOG_DO_NOT_SHOW_AGAIN;
import static org.jboss.tools.vpe.messages.VpeUIMessages.ENGINE_DIALOG_HEADER;
import static org.jboss.tools.vpe.messages.VpeUIMessages.ENGINE_DIALOG_HTML5;
import static org.jboss.tools.vpe.messages.VpeUIMessages.ENGINE_DIALOG_JSF;
import static org.jboss.tools.vpe.messages.VpeUIMessages.ENGINE_DIALOG_STAY_WITH;

import java.text.MessageFormat;

import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.layout.GridDataFactory;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Link;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.dialogs.PreferencesUtil;
import org.jboss.tools.jst.web.ui.WebUiPlugin;
import org.jboss.tools.jst.web.ui.internal.editor.preferences.IVpePreferencesPage;

/**Dialog which shown for Linux users to choose between xulrunner and webkit 
 * @see JBIDE-17818
 * 
 * @author Konstantin Marmalyukov (kmarmaliykov)
 *
 */
public class EngineDialog extends MessageDialog {
    private boolean isRemember = false;

    private static boolean webkitIsUsed = WebUiPlugin.getDefault().getPreferenceStore()
            .getBoolean(IVpePreferencesPage.USE_VISUAL_EDITOR_FOR_HTML5);
    private static String webkitOption = MessageFormat.format(ENGINE_DIALOG_HTML5,
            webkitIsUsed ? ENGINE_DIALOG_STAY_WITH : ENGINE_DIALOG_CHANGE_TO);
    private static String xulrunnerOption = MessageFormat.format(ENGINE_DIALOG_JSF,
            webkitIsUsed ? ENGINE_DIALOG_CHANGE_TO : ENGINE_DIALOG_STAY_WITH);
    public static final String PREFS_ID = "org.jboss.tools.vpe.editor"; //$NON-NLS-1$

    private Link link;

    public EngineDialog(Shell parentShell) {
        super(parentShell, ENGINE_DIALOG_HEADER, null, "", INFORMATION, //$NON-NLS-1$
                new String[] { webkitOption, xulrunnerOption }, webkitIsUsed ? 0 : 1);

        message = Messages.EngineDialog_MESSAGE;
    }

    @Override
    protected Control createCustomArea(Composite parent) {
        GridLayout gridLayout = (GridLayout) parent.getLayout();
        gridLayout.numColumns = 2;
        gridLayout.makeColumnsEqualWidth = true;
        parent.setLayout(gridLayout);
        Button button = new Button(parent, SWT.CHECK);
        GridData gridData = new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING);
        button.setLayoutData(gridData);
        button.addSelectionListener(new SelectionListener() {

            public void widgetSelected(SelectionEvent e) {
                isRemember = !isRemember;
            }

            public void widgetDefaultSelected(SelectionEvent e) {
                isRemember = !isRemember;
            }
        });
        button.setText(ENGINE_DIALOG_DO_NOT_SHOW_AGAIN);
        return parent;
    }

    @Override
    protected Control createMessageArea(Composite composite) {
        // create composite
        // create image
        Image image = getImage();
        if (image != null) {
            imageLabel = new Label(composite, SWT.NULL);
            image.setBackground(imageLabel.getBackground());
            imageLabel.setImage(image);
            GridDataFactory.fillDefaults().align(SWT.CENTER, SWT.BEGINNING).applyTo(imageLabel);
        }
        // create message
        if (message != null) {
            link = new Link(composite, getMessageLabelStyle());
            link.setText(message);
            link.addSelectionListener(new SelectionAdapter() {
                @Override
                public void widgetSelected(SelectionEvent e) {
                    PreferencesUtil.createPreferenceDialogOn(null, PREFS_ID, new String[] { PREFS_ID }, null)
                            .open();
                }
            });

            GridDataFactory.fillDefaults().align(SWT.FILL, SWT.BEGINNING).grab(true, false)
                    .hint(convertHorizontalDLUsToPixels(IDialogConstants.MINIMUM_MESSAGE_AREA_WIDTH), SWT.DEFAULT)
                    .applyTo(link);
        }

        return composite;
    }

    @Override
    protected void buttonPressed(int buttonId) {
        super.buttonPressed(buttonId);
        WebUiPlugin.getDefault().getPreferenceStore().setValue(IVpePreferencesPage.REMEMBER_VISUAL_EDITOR_ENGINE,
                isRemember);
        boolean useWebkit = false;
        if (buttonId == 0) {
            useWebkit = true;
        }
        if (buttonId == 1) {
            useWebkit = false;
        }
        if (useWebkit != webkitIsUsed) {
            WebUiPlugin.getDefault().getPreferenceStore().setValue(IVpePreferencesPage.USE_VISUAL_EDITOR_FOR_HTML5,
                    useWebkit);
            Display.getDefault().asyncExec(new Runnable() {
                @Override
                public void run() {
                    PlatformUI.getWorkbench().restart();
                }
            });
        }
    }
}