org.eclipse.mylyn.internal.tasks.ui.util.WebBrowserDialog.java Source code

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Here is the source code for org.eclipse.mylyn.internal.tasks.ui.util.WebBrowserDialog.java

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/*******************************************************************************
 * Copyright (c) 2004, 2008 Tasktop Technologies 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:
 *     Tasktop Technologies - initial API and implementation
 *******************************************************************************/

package org.eclipse.mylyn.internal.tasks.ui.util;

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;

import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.window.Window;
import org.eclipse.mylyn.commons.core.StatusHandler;
import org.eclipse.mylyn.commons.workbench.browser.BrowserUtil;
import org.eclipse.mylyn.internal.tasks.ui.TasksUiPlugin;
import org.eclipse.swt.SWT;
import org.eclipse.swt.SWTError;
import org.eclipse.swt.browser.Browser;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.browser.IWorkbenchBrowserSupport;

/**
 * Dialog to show the contents of an html page to the user
 * 
 * @author Shawn Minto
 * @deprecated use {@link org.eclipse.mylyn.commons.workbench.browser.WebBrowserDialog} instead
 */
@Deprecated
public class WebBrowserDialog extends MessageDialog {

    private String data = null;

    private static Boolean browserAvailable;

    public WebBrowserDialog(Shell parentShell, String dialogTitle, Image dialogTitleImage, String dialogMessage,
            int dialogImageType, String[] dialogButtonLabels, int defaultIndex, String data) {
        super(parentShell, dialogTitle, dialogTitleImage, dialogMessage, dialogImageType, dialogButtonLabels,
                defaultIndex);
        this.data = data;
        this.setShellStyle(SWT.SHELL_TRIM | SWT.RESIZE);
    }

    public static int openAcceptAgreement(Shell parent, String title, String message, String data) {
        if (isInternalBrowserAvailable(parent)) {
            WebBrowserDialog dialog = new WebBrowserDialog(parent, title, null, // accept
                    message, NONE, new String[] { IDialogConstants.OK_LABEL }, 0, data);
            // ok is the default
            return dialog.open();
        } else {
            File file = null;
            try {
                file = File.createTempFile("mylyn-error", ".html"); //$NON-NLS-1$ //$NON-NLS-2$
                file.deleteOnExit();
                BufferedWriter writer = new BufferedWriter(new FileWriter(file));
                try {
                    writer.write(message);
                } finally {
                    writer.close();
                }
            } catch (IOException e) {
                if (file != null) {
                    file.delete();
                }
                StatusHandler.log(new Status(IStatus.ERROR, TasksUiPlugin.ID_PLUGIN,
                        "Unexpected error while displaying error", e)); //$NON-NLS-1$
                return Window.CANCEL;
            }
            BrowserUtil.openUrl(file.toURI().toString(), IWorkbenchBrowserSupport.AS_EXTERNAL);
            return Window.OK;
        }
    }

    @Override
    public Control createCustomArea(Composite parent) {
        GridLayout layout = new GridLayout();
        parent.setLayout(layout);
        layout.numColumns = 1;

        Browser b = new Browser(parent, SWT.NONE);
        GridData gd = new GridData(GridData.FILL_BOTH);
        gd.horizontalSpan = 1;
        gd.verticalSpan = 50;
        b.setLayoutData(gd);
        b.setText(data);

        return parent;
    }

    private static synchronized boolean isInternalBrowserAvailable(Composite composite) {
        if (browserAvailable == null) {
            try {
                Browser browser = new Browser(composite, SWT.NULL);
                browser.dispose();
                browserAvailable = true;
            } catch (SWTError e) {
                browserAvailable = false;
            }
        }
        return browserAvailable;
    }

}