/*******************************************************************************
* Copyright 2011 Google Inc. All Rights Reserved.
*
* 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
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*******************************************************************************/
package com.google.gdt.eclipse.designer.ie;
import org.eclipse.swt.SWT;
import org.eclipse.swt.SWTException;
import org.eclipse.swt.browser.Browser;
import org.eclipse.swt.events.ShellAdapter;
import org.eclipse.swt.events.ShellEvent;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.wb.internal.core.utils.reflect.ReflectionUtils;
import org.eclipse.wb.internal.core.utils.ui.UiUtils;
import com.google.gdt.eclipse.designer.ie.jsni.ModuleSpaceIE;
import com.google.gdt.eclipse.designer.ie.util.Utils;
import com.google.gwt.dev.shell.designtime.JsValue;
import com.google.gwt.dev.shell.designtime.ModuleSpace;
/**
* Browser shell implementation for Windows.
*
* @author mitin_aa
*/
public final class BrowserShellIE extends com.google.gdt.eclipse.designer.hosted.tdt.BrowserShell {
private final Shell m_shell;
private final Browser m_browser;
private final IEInitializer m_helper;
////////////////////////////////////////////////////////////////////////////
//
// Constructor
//
////////////////////////////////////////////////////////////////////////////
public BrowserShellIE() {
m_shell = new Shell(SWT.SHELL_TRIM | SWT.APPLICATION_MODAL);
m_shell.setLayout(new FillLayout());
m_shell.setLocation(-10000, -10000);
// prevent close, hide instead
m_shell.addShellListener(new ShellAdapter() {
@Override
public void shellClosed(ShellEvent e) {
e.doit = false;
Shell shell = (Shell) e.widget;
shell.setMinimized(false);
shell.setMaximized(false);
shell.setVisible(false);
}
});
m_browser = new Browser(m_shell, SWT.NONE);
Utils.ensureProxyBypassLocal();
m_helper = new IEInitializer(m_browser);
m_shell.layout();
// keep Shell disabled, so it will not accept focus/activation
m_shell.setEnabled(false);
}
////////////////////////////////////////////////////////////////////////////
//
// IBrowserShell
//
////////////////////////////////////////////////////////////////////////////
public Rectangle computeTrim(int x, int y, int width, int height) {
return m_shell.computeTrim(x, y, width, height);
}
@Override
public void dispose() {
m_shell.dispose();
try {
ModuleSpace space = getModuleSpace();
if (space != null) {
space.dispose();
}
} catch (Throwable e) {
ReflectionUtils.propagate(e);
}
System.gc();
System.runFinalization();
JsValue.mainThreadCleanup();
super.dispose();
}
public boolean isDisposed() {
return m_shell == null || m_shell.isDisposed();
}
public void setBounds(Rectangle bounds) {
m_shell.setBounds(bounds);
}
public void setLocation(int x, int y) {
m_shell.setLocation(x, y);
}
public void setSize(int width, int height) {
m_shell.setSize(width, height);
}
public void setUrl(String url, String moduleName, int timeout, Runnable messageProcessor)
throws Exception {
try {
m_browser.setUrl(url);
// wait for Browser to initialize
m_helper.wait(timeout, messageProcessor);
this.moduleSpace = new ModuleSpaceIE(getHost(), m_helper.m_window, moduleName);
} finally {
// release some startup resources
m_helper.dispose();
}
getModuleSpace().onLoad();
}
public void setVisible(boolean visible) {
try {
m_shell.setVisible(visible);
} catch (SWTException e) {
// ignore low level SWT errors
} catch (IllegalArgumentException e) {
// ignore low level SWT errors
}
}
public void prepare() {
setLocation(-10000, -10000);
}
public Image createBrowserScreenshot() throws Exception {
return Utils.makeShot(m_browser);
}
public String getUserAgentString() {
return "ie8";
}
////////////////////////////////////////////////////////////////////////////
//
// Test/preview
//
////////////////////////////////////////////////////////////////////////////
public void showAsPreview() {
centerShellInDisplay();
openShellAsModal();
}
private void centerShellInDisplay() {
try {
Rectangle containerBounds = m_shell.getDisplay().getClientArea();
Rectangle shellBounds = m_shell.getBounds();
int x = Math.max(0, containerBounds.x + (containerBounds.width - shellBounds.width) / 2);
int y = Math.max(0, containerBounds.y + (containerBounds.height - shellBounds.height) / 3);
m_shell.setSize(shellBounds.width, shellBounds.height);
m_shell.setLocation(x, y);
} catch (SWTException e) {
// ignore low level SWT errors
} catch (IllegalArgumentException e) {
// ignore low level SWT errors
}
}
private void openShellAsModal() {
// temporary enable to allow user interaction
m_shell.setEnabled(true);
try {
UiUtils.runModalShell(m_shell);
} finally {
m_shell.setEnabled(false);
}
}
}