org.eclipse.swt.browser.WindowEvent Maven / Gradle / Ivy
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/*******************************************************************************
* Copyright (c) 2003, 2009 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.browser;
import org.eclipse.swt.widgets.*;
import org.eclipse.swt.events.*;
import org.eclipse.swt.graphics.*;
/**
* A WindowEvent is sent by a {@link Browser} when
* a new window needs to be created or when an existing window needs to be
* closed. This notification occurs when a javascript command such as
* window.open or window.close gets executed by
* a Browser.
*
*
* The following example shows how WindowEvent's are typically
* handled.
*
*
* public static void main(String[] args) {
* Display display = new Display();
* Shell shell = new Shell(display);
* shell.setText("Main Window");
* shell.setLayout(new FillLayout());
* Browser browser = new Browser(shell, SWT.NONE);
* initialize(display, browser);
* shell.open();
* browser.setUrl("http://www.eclipse.org");
* while (!shell.isDisposed()) {
* if (!display.readAndDispatch())
* display.sleep();
* }
* display.dispose();
* }
*
* static void initialize(final Display display, Browser browser) {
* browser.addOpenWindowListener(new OpenWindowListener() {
* public void open(WindowEvent event) {
* // Certain platforms can provide a default full browser.
* // simply return in that case if the application prefers
* // the default full browser to the embedded one set below.
* if (!event.required) return;
*
* // Embed the new window
* Shell shell = new Shell(display);
* shell.setText("New Window");
* shell.setLayout(new FillLayout());
* Browser browser = new Browser(shell, SWT.NONE);
* initialize(display, browser);
* event.browser = browser;
* }
* });
* browser.addVisibilityWindowListener(new VisibilityWindowListener() {
* public void hide(WindowEvent event) {
* Browser browser = (Browser)event.widget;
* Shell shell = browser.getShell();
* shell.setVisible(false);
* }
* public void show(WindowEvent event) {
* Browser browser = (Browser)event.widget;
* Shell shell = browser.getShell();
* if (event.location != null) shell.setLocation(event.location);
* if (event.size != null) {
* Point size = event.size;
* shell.setSize(shell.computeSize(size.x, size.y));
* }
* if (event.addressBar || event.menuBar || event.statusBar || event.toolBar) {
* // Create widgets for the address bar, menu bar, status bar and/or tool bar
* // leave enough space in the Shell to accommodate a Browser of the size
* // given by event.size
* }
* shell.open();
* }
* });
* browser.addCloseWindowListener(new CloseWindowListener() {
* public void close(WindowEvent event) {
* Browser browser = (Browser)event.widget;
* Shell shell = browser.getShell();
* shell.close();
* }
* });
* }
*
Main Browser
*
* - User selects a link that opens in a new window or javascript requests a new window
* - OpenWindowListener.open() notified
*
* - Application creates a new Shell and a second Browser inside that Shell
* - Application registers WindowListener's on that second Browser, such as VisibilityWindowListener
* - Application returns the second Browser as the host for the new window content
*
*
*
* Second Browser
*
* - VisibilityWindowListener.show() notified
*
* - Application sets navigation tool bar, status bar, menu bar and Shell size
*
- Application makes the Shell hosting the second Browser visible
*
- User now sees the new window
*
*
*
* @see CloseWindowListener
* @see OpenWindowListener
* @see VisibilityWindowListener
* @see Sample code and further information
*
* @since 3.0
*/
public class WindowEvent extends TypedEvent {
/**
* Specifies whether the platform requires the user to provide a
* Browser to handle the new window.
*
* @since 3.1
*/
public boolean required;
/**
* Browser provided by the application.
*/
public Browser browser;
/**
* Requested location for the Shell hosting the Browser.
* It is null if no location has been requested.
*/
public Point location;
/**
* Requested Browser size. The client area of the Shell
* hosting the Browser should be large enough to accommodate that size.
* It is null if no size has been requested.
*/
public Point size;
/**
* Specifies whether the Shell hosting the Browser should
* display an address bar.
*
* @since 3.1
*/
public boolean addressBar;
/**
* Specifies whether the Shell hosting the Browser should
* display a menu bar. Note that this is always true on OS X.
*
* @since 3.1
*/
public boolean menuBar;
/**
* Specifies whether the Shell hosting the Browser should
* display a status bar.
*
* @since 3.1
*/
public boolean statusBar;
/**
* Specifies whether the Shell hosting the Browser should
* display a tool bar.
*
* @since 3.1
*/
public boolean toolBar;
static final long serialVersionUID = 3617851997387174969L;
/**
* Constructs a new instance of this class.
*
* @param widget the widget that fired the event
*
* @since 3.5
*/
public WindowEvent(Widget widget) {
super(widget);
}
/**
* Returns a string containing a concise, human-readable
* description of the receiver.
*
* @return a string representation of the event
*/
@Override
public String toString() {
String string = super.toString ();
return string.substring (0, string.length() - 1) // remove trailing '}'
+ " required=" + required
+ " browser=" + browser
+ " location=" + location
+ " size=" + size
+ " addressBar=" + addressBar
+ " menuBar=" + menuBar
+ " statusBar=" + statusBar
+ " toolBar=" + toolBar
+ "}";
}
}