| /******************************************************************************* |
| * Copyright (c) 2000, 2013 IBM Corporation 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: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.swt.snippets; |
| |
| /* |
| * Browser example snippet: Zoom HTML page content in a Mozilla Browser |
| * (note that XULRunner 1.9 or newer is required). |
| * |
| * IMPORTANT: For this snippet to work properly all of the requirements |
| * for using JavaXPCOM in a stand-alone application must be satisfied |
| * (see http://www.eclipse.org/swt/faq.php#howusejavaxpcom). |
| * |
| * For a list of all SWT example snippets see |
| * http://www.eclipse.org/swt/snippets/ |
| * |
| * @since 3.3 |
| */ |
| import org.eclipse.swt.*; |
| import org.eclipse.swt.widgets.*; |
| import org.eclipse.swt.browser.*; |
| import org.eclipse.swt.layout.*; |
| import org.mozilla.interfaces.*; |
| |
| public class Snippet329 { |
| static int zoom = 10; |
| static Browser browser; |
| |
| public static void main(String [] args) { |
| Display display = new Display(); |
| Shell shell = new Shell(display); |
| shell.setLayout(new GridLayout(2, true)); |
| |
| try { |
| browser = new Browser(shell, SWT.MOZILLA); |
| } catch (SWTError e) { |
| System.out.println("Could not instantiate Browser: " + e.getMessage()); |
| display.dispose(); |
| return; |
| } |
| GridData data = new GridData(); |
| data.heightHint = data.widthHint = 400; |
| data.horizontalSpan = 2; |
| browser.setLayoutData(data); |
| |
| Button zoomIn = new Button(shell, SWT.PUSH); |
| zoomIn.setText("Zoom In"); |
| zoomIn.addListener(SWT.Selection, new Listener() { |
| @Override |
| public void handleEvent(Event event) { |
| setZoom(++zoom); |
| } |
| }); |
| Button zoomOut = new Button(shell, SWT.PUSH); |
| zoomOut.setText("Zoom Out"); |
| zoomOut.addListener(SWT.Selection, new Listener() { |
| @Override |
| public void handleEvent(Event event) { |
| if (zoom > 1) { |
| setZoom(--zoom); |
| } |
| } |
| }); |
| |
| shell.pack(); |
| shell.open(); |
| browser.setUrl("http://www.eclipse.org"); |
| while (!shell.isDisposed()) { |
| if (!display.readAndDispatch()) display.sleep(); |
| } |
| display.dispose(); |
| } |
| static void setZoom(int zoom) { |
| nsIWebBrowser webBrowser = (nsIWebBrowser)browser.getWebBrowser(); |
| nsIInterfaceRequestor req = (nsIInterfaceRequestor)webBrowser.queryInterface(nsIInterfaceRequestor.NS_IINTERFACEREQUESTOR_IID); |
| nsIDocShell docShell = (nsIDocShell)req.getInterface(nsIDocShell.NS_IDOCSHELL_IID); |
| nsIContentViewer contentView = docShell.getContentViewer(); |
| nsIMarkupDocumentViewer docView = (nsIMarkupDocumentViewer)contentView.queryInterface(nsIMarkupDocumentViewer.NS_IMARKUPDOCUMENTVIEWER_IID); |
| float value = zoom / 10f; |
| System.out.println("zoom: " + value); |
| docView.setFullZoom(value); |
| } |
| |
| } |