org.eclipse.swt.snippets.Snippet173.java Source code

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Here is the source code for org.eclipse.swt.snippets.Snippet173.java

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/*******************************************************************************
 * Copyright (c) 2000, 2016 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.swt.snippets;

/*
 * Browser snippet: bring up a browser with pop-up blocker
 *
 * For a list of all SWT example snippets see
 * http://www.eclipse.org/swt/snippets/
 *
 * @since 3.1
 */
import org.eclipse.swt.*;
import org.eclipse.swt.browser.*;
import org.eclipse.swt.graphics.*;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.widgets.*;

public class Snippet173 {

    static final int BROWSER_STYLE = SWT.NONE;

    public static void main(String[] args) {
        Display display = new Display();
        Shell shell = new Shell(display);
        shell.setText("Main Window");
        shell.setLayout(new FillLayout());
        final Browser browser;
        try {
            browser = new Browser(shell, BROWSER_STYLE);
        } catch (SWTError e) {
            System.out.println("Could not instantiate Browser: " + e.getMessage());
            display.dispose();
            return;
        }
        initialize(display, browser);
        shell.open();
        /* any website with popups */
        browser.setUrl("http://www.popuptest.com/");
        while (!shell.isDisposed()) {
            if (!display.readAndDispatch())
                display.sleep();
        }
        display.dispose();
    }

    /* register WindowEvent listeners */
    static void initialize(final Display display, Browser browser) {
        browser.addOpenWindowListener(event -> {
            Shell shell = new Shell(display);
            shell.setText("New Window");
            shell.setLayout(new FillLayout());
            Browser browser1 = new Browser(shell, BROWSER_STYLE);
            initialize(display, browser1);
            event.browser = browser1;
        });
        browser.addVisibilityWindowListener(new VisibilityWindowListener() {
            @Override
            public void hide(WindowEvent event) {
                Browser browser = (Browser) event.widget;
                Shell shell = browser.getShell();
                shell.setVisible(false);
            }

            @Override
            public void show(WindowEvent event) {
                Browser browser = (Browser) event.widget;
                final Shell shell = browser.getShell();
                /* popup blocker - ignore windows with no style */
                boolean isOSX = SWT.getPlatform().equals("cocoa");
                if (!event.addressBar && !event.statusBar && !event.toolBar && (!event.menuBar || isOSX)) {
                    System.out.println("Popup blocked.");
                    event.display.asyncExec(() -> shell.close());
                    return;
                }
                if (event.location != null)
                    shell.setLocation(event.location);
                if (event.size != null) {
                    Point size = event.size;
                    shell.setSize(shell.computeSize(size.x, size.y));
                }
                shell.open();
            }
        });
        browser.addCloseWindowListener(event -> {
            Browser browser1 = (Browser) event.widget;
            Shell shell = browser1.getShell();
            shell.close();
        });
    }
}