bundles/org.eclipse.swt/Eclipse SWT Mozilla/carbon/org/eclipse/swt/browser/MozillaDelegate.java - platform/eclipse.platform.swt - Git at Google

 /*******************************************************************************
  * Copyright (c) 2003, 2007 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 java.util.Hashtable;

 import org.eclipse.swt.SWT;
 import org.eclipse.swt.browser.Browser;
 import org.eclipse.swt.internal.*;
 import org.eclipse.swt.internal.carbon.*;
 import org.eclipse.swt.internal.cocoa.*;
 import org.eclipse.swt.widgets.*;

 class MozillaDelegate {
 	Browser browser;
 	Listener listener;
 	boolean hasFocus;
 	static Callback Callback3;
 	static Hashtable handles = new Hashtable ();

 MozillaDelegate (Browser browser) {
 	super ();
 	this.browser = browser;
 }

 static Browser findBrowser (int handle) {
 	LONG value = (LONG)handles.get (new LONG (handle));
 	if (value != null) {
 		Display display = Display.getCurrent ();
 		return (Browser)display.findWidget (value.value);
 	}
 	return null;
 }

 static char[] mbcsToWcs (String codePage, byte [] buffer) {
 	int encoding = OS.CFStringGetSystemEncoding ();
 	int cfstring = OS.CFStringCreateWithBytes (OS.kCFAllocatorDefault, buffer, buffer.length, encoding, false);
 	char[] chars = null;
 	if (cfstring != 0) {
 		int length = OS.CFStringGetLength (cfstring);
 		chars = new char [length];
 		if (length != 0) {
 			CFRange range = new CFRange ();
 			range.length = length;
 			OS.CFStringGetCharacters (cfstring, range, chars);
 		}
 		OS.CFRelease (cfstring);
 	}
 	return chars;
 }

 static byte[] wcsToMbcs (String codePage, String string, boolean terminate) {
 	char[] chars = new char [string.length()];
 	string.getChars (0, chars.length, chars, 0);
 	int cfstring = OS.CFStringCreateWithCharacters (OS.kCFAllocatorDefault, chars, chars.length);
 	byte[] buffer = null;
 	if (cfstring != 0) {
 		CFRange range = new CFRange ();
 		range.length = chars.length;
 		int encoding = OS.CFStringGetSystemEncoding ();
 		int[] size = new int[1];
 		int numChars = OS.CFStringGetBytes (cfstring, range, encoding, (byte)'?', true, null, 0, size);
 		buffer = new byte [size[0] + (terminate ? 1 : 0)];
 		if (numChars != 0) {
 			numChars = OS.CFStringGetBytes (cfstring, range, encoding, (byte)'?', true, buffer, size[0], size);
 		}
 		OS.CFRelease (cfstring);
 	}
 	return buffer;
 }

 static int eventProc3 (int nextHandler, int theEvent, int userData) {
 	Widget widget = Display.getCurrent ().findWidget (userData);
 	if (widget instanceof Browser) {
 		Browser browser = (Browser) widget;
 		switch (OS.GetEventClass (theEvent)) {
 			case OS.kEventClassMouse:
 				browser.getShell ().forceActive ();
 				((Mozilla)browser.webBrowser).Activate ();
 				break;
 			case OS.kEventClassKeyboard:
 				/*
 				* Bug in Carbon.  OSX crashes if a HICocoaView is disposed during a key event,
 				* presumably as a result of attempting to use it after its refcount has reached
 				* 0.  The workaround is to temporarily add an extra ref to the view while the
 				* DOM listener is handling the event, in case the Browser gets disposed in a
 				* callback.
 				*/
 				int handle = browser.handle;
 				OS.CFRetain (handle);
 				int result = OS.CallNextEventHandler (nextHandler, theEvent);
 				OS.CFRelease (handle);
 				return result;
 		}
 	}
 	return OS.eventNotHandledErr;
 }

 int getHandle () {
     int embedHandle = Cocoa.objc_msgSend (Cocoa.C_NSImageView, Cocoa.S_alloc);
 	if (embedHandle == 0) {
 		browser.dispose ();
 		SWT.error (SWT.ERROR_NO_HANDLES);
 	}
 	NSRect r = new NSRect ();
 	embedHandle = Cocoa.objc_msgSend (embedHandle, Cocoa.S_initWithFrame, r);
 	int rc;
 	int[] outControl = new int[1];
 	rc = Cocoa.HICocoaViewCreate (embedHandle, 0, outControl); /* OSX >= 10.5 */
 	if (rc == OS.noErr && outControl[0] != 0) {
 		Cocoa.objc_msgSend (embedHandle, Cocoa.S_release);
 	} else {
 		/* will succeed on OSX 10.4 with an updated vm containing HIJavaViewCreateWithCocoaView */
 		try {
 			System.loadLibrary ("frameembedding"); //$NON-NLS-1$
 		} catch (UnsatisfiedLinkError e) {}
 		rc = Cocoa.HIJavaViewCreateWithCocoaView (outControl, embedHandle);
 		if (!(rc == OS.noErr && outControl[0] != 0)) {
 			browser.dispose ();
 			SWT.error (SWT.ERROR_NO_HANDLES);
 		}
 	}
 	int subHIView = outControl[0];
 	HILayoutInfo newLayoutInfo = new HILayoutInfo ();
 	newLayoutInfo.version = 0;
 	OS.HIViewGetLayoutInfo (subHIView, newLayoutInfo);
 	HISideBinding biding = newLayoutInfo.binding.top;
 	biding.toView = 0;
 	biding.kind = OS.kHILayoutBindMin;
 	biding.offset = 0;
 	biding = newLayoutInfo.binding.left;
 	biding.toView = 0;
 	biding.kind = OS.kHILayoutBindMin;
 	biding.offset = 0;
 	biding = newLayoutInfo.binding.bottom;
 	biding.toView = 0;
 	biding.kind = OS.kHILayoutBindMax;
 	biding.offset = 0;
 	biding = newLayoutInfo.binding.right;
 	biding.toView = 0;
 	biding.kind = OS.kHILayoutBindMax;
 	biding.offset = 0;
 	OS.HIViewSetLayoutInfo (subHIView, newLayoutInfo);
 	OS.HIViewChangeFeatures (subHIView, OS.kHIViewFeatureIsOpaque, 0);
 	OS.HIViewSetVisible (subHIView, true);
 	int parentHandle = browser.handle;
 	OS.HIViewAddSubview (browser.handle, subHIView);
 	CGRect rect = new CGRect ();
 	OS.HIViewGetFrame (parentHandle, rect);
 	rect.x = rect.y = 0;
 	OS.HIViewSetFrame (subHIView, rect);
 	handles.put (new LONG (embedHandle), new LONG (browser.handle));

 	if (Callback3 == null) Callback3 = new Callback (this.getClass (), "eventProc3", 3); //$NON-NLS-1$
 	int callback3Address = Callback3.getAddress ();
 	if (callback3Address == 0) {
 		browser.dispose ();
 		SWT.error (SWT.ERROR_NO_MORE_CALLBACKS);
 	}
 	int [] mask = new int [] {
 		OS.kEventClassMouse, OS.kEventMouseDown,
 		OS.kEventClassKeyboard, OS.kEventRawKeyDown,
 	};
 	int controlTarget = OS.GetControlEventTarget (subHIView);
 	OS.InstallEventHandler (controlTarget, callback3Address, mask.length / 2, mask, browser.handle, null);

 	return embedHandle;
 }

 String getLibraryName () {
 	return "libxpcom.dylib"; //$NON-NLS-1$
 }

 String getSWTInitLibraryName () {
 	return "swt-xulrunner"; //$NON-NLS-1$
 }

 void handleFocus () {
 	if (hasFocus) return;
 	hasFocus = true;
 	((Mozilla)browser.webBrowser).Activate ();
 	browser.setFocus ();
 	listener = new Listener () {
 		public void handleEvent (Event event) {
 			if (event.widget == browser) return;
 			((Mozilla)browser.webBrowser).Deactivate ();
 			hasFocus = false;
 			browser.getDisplay ().removeFilter (SWT.FocusIn, this);
 			browser.getShell ().removeListener (SWT.Deactivate, this);
 			listener = null;
 		}

 	};
 	browser.getDisplay ().addFilter (SWT.FocusIn, listener);
 	browser.getShell ().addListener (SWT.Deactivate, listener);
 }

 void handleMouseDown () {
 }

 boolean hookEnterExit () {
 	return true;
 }

 void init () {
 }

 boolean needsSpinup () {
 	return false;
 }

 void onDispose (int embedHandle) {
 	handles.remove (new LONG (embedHandle));
 	if (listener != null) {
 		browser.getDisplay ().removeFilter (SWT.FocusIn, listener);
 		browser.getShell ().removeListener (SWT.Deactivate, listener);
 		listener = null;
 	}
 	browser = null;
 }

 void setSize (int embedHandle, int width, int height) {
 	// TODO
 }

 }
	/*******************************************************************************
	* Copyright (c) 2003, 2007 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 java.util.Hashtable;

	import org.eclipse.swt.SWT;
	import org.eclipse.swt.browser.Browser;
	import org.eclipse.swt.internal.*;
	import org.eclipse.swt.internal.carbon.*;
	import org.eclipse.swt.internal.cocoa.*;
	import org.eclipse.swt.widgets.*;

	class MozillaDelegate {
	Browser browser;
	Listener listener;
	boolean hasFocus;
	static Callback Callback3;
	static Hashtable handles = new Hashtable ();

	MozillaDelegate (Browser browser) {
	super ();
	this.browser = browser;
	}

	static Browser findBrowser (int handle) {
	LONG value = (LONG)handles.get (new LONG (handle));
	if (value != null) {
	Display display = Display.getCurrent ();
	return (Browser)display.findWidget (value.value);
	}
	return null;
	}

	static char[] mbcsToWcs (String codePage, byte [] buffer) {
	int encoding = OS.CFStringGetSystemEncoding ();
	int cfstring = OS.CFStringCreateWithBytes (OS.kCFAllocatorDefault, buffer, buffer.length, encoding, false);
	char[] chars = null;
	if (cfstring != 0) {
	int length = OS.CFStringGetLength (cfstring);
	chars = new char [length];
	if (length != 0) {
	CFRange range = new CFRange ();
	range.length = length;
	OS.CFStringGetCharacters (cfstring, range, chars);
	}
	OS.CFRelease (cfstring);
	}
	return chars;
	}

	static byte[] wcsToMbcs (String codePage, String string, boolean terminate) {
	char[] chars = new char [string.length()];
	string.getChars (0, chars.length, chars, 0);
	int cfstring = OS.CFStringCreateWithCharacters (OS.kCFAllocatorDefault, chars, chars.length);
	byte[] buffer = null;
	if (cfstring != 0) {
	CFRange range = new CFRange ();
	range.length = chars.length;
	int encoding = OS.CFStringGetSystemEncoding ();
	int[] size = new int[1];
	int numChars = OS.CFStringGetBytes (cfstring, range, encoding, (byte)'?', true, null, 0, size);
	buffer = new byte [size[0] + (terminate ? 1 : 0)];
	if (numChars != 0) {
	numChars = OS.CFStringGetBytes (cfstring, range, encoding, (byte)'?', true, buffer, size[0], size);
	}
	OS.CFRelease (cfstring);
	}
	return buffer;
	}

	static int eventProc3 (int nextHandler, int theEvent, int userData) {
	Widget widget = Display.getCurrent ().findWidget (userData);
	if (widget instanceof Browser) {
	Browser browser = (Browser) widget;
	switch (OS.GetEventClass (theEvent)) {
	case OS.kEventClassMouse:
	browser.getShell ().forceActive ();
	((Mozilla)browser.webBrowser).Activate ();
	break;
	case OS.kEventClassKeyboard:
	/*
	* Bug in Carbon. OSX crashes if a HICocoaView is disposed during a key event,
	* presumably as a result of attempting to use it after its refcount has reached
	* 0. The workaround is to temporarily add an extra ref to the view while the
	* DOM listener is handling the event, in case the Browser gets disposed in a
	* callback.
	*/
	int handle = browser.handle;
	OS.CFRetain (handle);
	int result = OS.CallNextEventHandler (nextHandler, theEvent);
	OS.CFRelease (handle);
	return result;
	}
	}
	return OS.eventNotHandledErr;
	}

	int getHandle () {
	int embedHandle = Cocoa.objc_msgSend (Cocoa.C_NSImageView, Cocoa.S_alloc);
	if (embedHandle == 0) {
	browser.dispose ();
	SWT.error (SWT.ERROR_NO_HANDLES);
	}
	NSRect r = new NSRect ();
	embedHandle = Cocoa.objc_msgSend (embedHandle, Cocoa.S_initWithFrame, r);
	int rc;
	int[] outControl = new int[1];
	rc = Cocoa.HICocoaViewCreate (embedHandle, 0, outControl); /* OSX >= 10.5 */
	if (rc == OS.noErr && outControl[0] != 0) {
	Cocoa.objc_msgSend (embedHandle, Cocoa.S_release);
	} else {
	/* will succeed on OSX 10.4 with an updated vm containing HIJavaViewCreateWithCocoaView */
	try {
	System.loadLibrary ("frameembedding"); //$NON-NLS-1$
	} catch (UnsatisfiedLinkError e) {}
	rc = Cocoa.HIJavaViewCreateWithCocoaView (outControl, embedHandle);
	if (!(rc == OS.noErr && outControl[0] != 0)) {
	browser.dispose ();
	SWT.error (SWT.ERROR_NO_HANDLES);
	}
	}
	int subHIView = outControl[0];
	HILayoutInfo newLayoutInfo = new HILayoutInfo ();
	newLayoutInfo.version = 0;
	OS.HIViewGetLayoutInfo (subHIView, newLayoutInfo);
	HISideBinding biding = newLayoutInfo.binding.top;
	biding.toView = 0;
	biding.kind = OS.kHILayoutBindMin;
	biding.offset = 0;
	biding = newLayoutInfo.binding.left;
	biding.toView = 0;
	biding.kind = OS.kHILayoutBindMin;
	biding.offset = 0;
	biding = newLayoutInfo.binding.bottom;
	biding.toView = 0;
	biding.kind = OS.kHILayoutBindMax;
	biding.offset = 0;
	biding = newLayoutInfo.binding.right;
	biding.toView = 0;
	biding.kind = OS.kHILayoutBindMax;
	biding.offset = 0;
	OS.HIViewSetLayoutInfo (subHIView, newLayoutInfo);
	OS.HIViewChangeFeatures (subHIView, OS.kHIViewFeatureIsOpaque, 0);
	OS.HIViewSetVisible (subHIView, true);
	int parentHandle = browser.handle;
	OS.HIViewAddSubview (browser.handle, subHIView);
	CGRect rect = new CGRect ();
	OS.HIViewGetFrame (parentHandle, rect);
	rect.x = rect.y = 0;
	OS.HIViewSetFrame (subHIView, rect);
	handles.put (new LONG (embedHandle), new LONG (browser.handle));

	if (Callback3 == null) Callback3 = new Callback (this.getClass (), "eventProc3", 3); //$NON-NLS-1$
	int callback3Address = Callback3.getAddress ();
	if (callback3Address == 0) {
	browser.dispose ();
	SWT.error (SWT.ERROR_NO_MORE_CALLBACKS);
	}
	int [] mask = new int [] {
	OS.kEventClassMouse, OS.kEventMouseDown,
	OS.kEventClassKeyboard, OS.kEventRawKeyDown,
	};
	int controlTarget = OS.GetControlEventTarget (subHIView);
	OS.InstallEventHandler (controlTarget, callback3Address, mask.length / 2, mask, browser.handle, null);

	return embedHandle;
	}

	String getLibraryName () {
	return "libxpcom.dylib"; //$NON-NLS-1$
	}

	String getSWTInitLibraryName () {
	return "swt-xulrunner"; //$NON-NLS-1$
	}

	void handleFocus () {
	if (hasFocus) return;
	hasFocus = true;
	((Mozilla)browser.webBrowser).Activate ();
	browser.setFocus ();
	listener = new Listener () {
	public void handleEvent (Event event) {
	if (event.widget == browser) return;
	((Mozilla)browser.webBrowser).Deactivate ();
	hasFocus = false;
	browser.getDisplay ().removeFilter (SWT.FocusIn, this);
	browser.getShell ().removeListener (SWT.Deactivate, this);
	listener = null;
	}

	};
	browser.getDisplay ().addFilter (SWT.FocusIn, listener);
	browser.getShell ().addListener (SWT.Deactivate, listener);
	}

	void handleMouseDown () {
	}

	boolean hookEnterExit () {
	return true;
	}

	void init () {
	}

	boolean needsSpinup () {
	return false;
	}

	void onDispose (int embedHandle) {
	handles.remove (new LONG (embedHandle));
	if (listener != null) {
	browser.getDisplay ().removeFilter (SWT.FocusIn, listener);
	browser.getShell ().removeListener (SWT.Deactivate, listener);
	listener = null;
	}
	browser = null;
	}

	void setSize (int embedHandle, int width, int height) {
	// TODO
	}

	}