/*******************************************************************************
* 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.webkit;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Rectangle;
import com.google.gdt.eclipse.designer.hosted.HostedModeException;
import com.google.gdt.eclipse.designer.hosted.tdz.BrowserShell;
import com.google.gdt.eclipse.designer.webkit.jsni.LowLevelWebKit;
import com.google.gdt.eclipse.designer.webkit.jsni.ModuleSpaceWebKit;
import com.google.gwt.core.ext.TreeLogger;
import com.google.gwt.dev.shell.JsValue;
import com.google.gwt.dev.shell.ModuleSpace;
import com.google.gwt.dev.shell.ModuleSpaceHost;
/**
* BrowserShell implementation which uses WebKit as native system window.
*
* @author mitin_aa
*/
public final class BrowserShellWebKit<H extends Number> extends BrowserShell {
static {
String libname = "wbp-gwt-webkit";
try {
System.loadLibrary(libname);
LowLevelWebKit.init();
} catch (Throwable e) {
throw new HostedModeException(HostedModeException.NATIVE_LIBS_LOADING_ERROR,
e,
new String[]{libname});
}
}
private final IBrowserShellWebKitImpl m_impl;
private String m_moduleName;
private WebKitInitializer<H> m_helper;
////////////////////////////////////////////////////////////////////////////
//
// Constructor
//
////////////////////////////////////////////////////////////////////////////
public BrowserShellWebKit(IBrowserShellWebKitImpl impl) {
m_impl = impl;
m_helper = new WebKitInitializer<H>();
m_impl.create(m_helper);
}
////////////////////////////////////////////////////////////////////////////
//
// BrowserShell
//
////////////////////////////////////////////////////////////////////////////
public void setUrl(String url, String moduleName, int timeout, Runnable messageProcessor)
throws Exception {
m_moduleName = moduleName;
checkWidget();
// wait for browser to prepare
m_impl.setUrl(url);
m_helper.wait(timeout, messageProcessor);
TreeLogger logger = getHost().getLogger();
// load module
ModuleSpaceHost msh = getHost().createModuleSpaceHost(m_moduleName);
@SuppressWarnings("unchecked")
ModuleSpace moduleSpace =
new ModuleSpaceWebKit<H>(logger,
msh,
m_helper.getScriptObject(),
(H) LowLevelWebKit.getCurrentJsContext(),
m_moduleName);
attachModuleSpace(moduleSpace);
// no need more, let GC to possibly release native resources
m_helper = null;
}
@Override
public void dispose() {
// force disposing any pending JsValue instances
JsValue.mainThreadCleanup();
System.runFinalization();
System.gc();
System.runFinalization();
System.gc();
super.dispose();
m_impl.dispose();
}
public boolean isDisposed() {
return m_impl.isDisposed();
}
private void checkWidget() {
if (isDisposed()) {
SWT.error(SWT.ERROR_WIDGET_DISPOSED);
}
}
public void setVisible(boolean visible) {
// FIXME: Not used?
}
public Rectangle computeTrim(int x, int y, int width, int height) {
checkWidget();
return m_impl.computeTrim(x, y, width, height);
}
public void setBounds(Rectangle bounds) {
checkWidget();
m_impl.setBounds(bounds.x, bounds.y, bounds.width, bounds.height);
}
public Rectangle getBounds() {
checkWidget();
return m_impl.getBounds();
}
public void setSize(int width, int height) {
Rectangle bounds = getBounds();
bounds.width = width;
bounds.height = height;
setBounds(bounds);
}
public void setLocation(int x, int y) {
Rectangle bounds = getBounds();
bounds.x = x;
bounds.y = y;
setBounds(bounds);
}
public void showAsPreview() {
m_impl.showAsPreview();
}
public void prepare() {
m_impl.prepare();
}
public Image createBrowserScreenshot() throws Exception {
return m_impl.makeShot();
}
public String getUserAgentString() {
return "safari";
}
}