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/*******************************************************************************
* 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);
}
}
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