1 files changed, 173 insertions, 0 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT OLE Win32/win32/org/eclipse/swt/ole/win32/OlePropertyChangeSink.java b/bundles/org.eclipse.swt/Eclipse SWT OLE Win32/win32/org/eclipse/swt/ole/win32/OlePropertyChangeSink.java
new file mode 100755
index 0000000000..98ca8a8a2a
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT OLE Win32/win32/org/eclipse/swt/ole/win32/OlePropertyChangeSink.java
@@ -0,0 +1,173 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 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.ole.win32;
+
+
+import org.eclipse.swt.internal.ole.win32.*;
+import org.eclipse.swt.internal.win32.*;
+import org.eclipse.swt.*;
+
+final class OlePropertyChangeSink {
+
+	private OleControlSite controlSite;
+	//private IUnknown objIUnknown;
+	
+	private COMObject iUnknown;
+	private COMObject iPropertyNotifySink;
+
+	private int refCount;
+	
+	private int propertyCookie;
+
+	private OleEventTable eventTable;
+	
+OlePropertyChangeSink(OleControlSite controlSite) {
+	
+	this.controlSite = controlSite;
+	
+	createCOMInterfaces();
+}
+void addListener(int propertyID, OleListener listener) {
+	if (listener == null) OLE.error (SWT.ERROR_NULL_ARGUMENT);
+	if (eventTable == null) eventTable = new OleEventTable ();
+	eventTable.hook(propertyID, listener);
+}
+int AddRef() {
+	refCount++;
+	return refCount;
+}
+void connect(IUnknown objIUnknown) {
+
+	// Set up property change notification sink
+	int /*long*/[] ppvObject = new int /*long*/[1];
+	if (objIUnknown.QueryInterface(COM.IIDIConnectionPointContainer, ppvObject) == COM.S_OK) {
+		IConnectionPointContainer cpc = new IConnectionPointContainer(ppvObject[0]);
+		if (cpc.FindConnectionPoint(COM.IIDIPropertyNotifySink, ppvObject) == COM.S_OK) {
+			IConnectionPoint cp = new IConnectionPoint(ppvObject[0]);
+			int[] cookie = new int[1];
+			if (cp.Advise(iPropertyNotifySink.getAddress(), cookie) == COM.S_OK) {
+				propertyCookie = cookie[0];
+			}
+			cp.Release();
+		}
+		cpc.Release();
+	}
+}
+private void createCOMInterfaces() {
+	// register each of the interfaces that this object implements
+	iUnknown = new COMObject(new int[]{2, 0, 0}){
+		public int /*long*/ method0(int /*long*/[] args) {return QueryInterface(args[0], args[1]);}
+		public int /*long*/ method1(int /*long*/[] args) {return AddRef();}
+		public int /*long*/ method2(int /*long*/[] args) {return Release();}
+	};
+	
+	iPropertyNotifySink = new COMObject(new int[]{2, 0, 0, 1, 1}){
+		public int /*long*/ method0(int /*long*/[] args) {return QueryInterface(args[0], args[1]);}
+		public int /*long*/ method1(int /*long*/[] args) {return AddRef();}
+		public int /*long*/ method2(int /*long*/[] args) {return Release();}
+		public int /*long*/ method3(int /*long*/[] args) {return OnChanged((int)/*64*/args[0]);}
+		public int /*long*/ method4(int /*long*/[] args) {return OnRequestEdit((int)/*64*/args[0]);}
+	};
+}
+void disconnect(IUnknown objIUnknown) {
+
+	// disconnect property notification sink
+	if (propertyCookie != 0 && objIUnknown != null) {
+		int /*long*/[] ppvObject = new int /*long*/[1];
+		if (objIUnknown.QueryInterface(COM.IIDIConnectionPointContainer, ppvObject) == COM.S_OK) {
+			IConnectionPointContainer cpc = new IConnectionPointContainer(ppvObject[0]);
+			if (cpc.FindConnectionPoint(COM.IIDIPropertyNotifySink, ppvObject) == COM.S_OK) {
+				IConnectionPoint cp = new IConnectionPoint(ppvObject[0]);
+				if (cp.Unadvise(propertyCookie) == COM.S_OK) {
+					propertyCookie = 0;
+				}
+				cp.Release();
+			}
+			cpc.Release();
+		}
+	}
+}
+private void disposeCOMInterfaces() {
+	if (iUnknown != null) iUnknown.dispose();
+	iUnknown = null;
+	if (iPropertyNotifySink != null) iPropertyNotifySink.dispose();
+	iPropertyNotifySink = null;
+}
+/**
+* Notify listeners of an event.
+* <p>
+*	This method notifies all listeners that an event
+* has occurred.
+*
+* @param eventType the desired SWT event
+* @param event the event data
+*
+* @exception IllegalArgumentException <ul>
+* 		<li>ERROR_NULL_ARGUMENT when handler is null</li>
+* </ul>
+* @exception SWTException <ul>
+*		<li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
+*		<li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
+*	</ul>
+*/
+private void notifyListener (int eventType, OleEvent event) {
+	if (event == null) OLE.error (SWT.ERROR_NULL_ARGUMENT);
+	if (eventTable == null) return;
+	event.type = eventType;
+	event.widget = controlSite;
+	eventTable.sendEvent (event);
+}
+private int OnChanged(int dispID) {
+	if (eventTable == null || !eventTable.hooks(dispID)) return COM.S_OK;
+	OleEvent event = new OleEvent();
+	event.detail = OLE.PROPERTY_CHANGED;
+	notifyListener(dispID,event);
+	return COM.S_OK;
+}
+private int OnRequestEdit(int dispID) {
+	if (eventTable == null || !eventTable.hooks(dispID)) return COM.S_OK;
+	OleEvent event = new OleEvent();
+	event.doit = true;
+	event.detail = OLE.PROPERTY_CHANGING;
+	notifyListener(dispID,event);
+	return (event.doit) ? COM.S_OK : COM.S_FALSE;
+}
+private int QueryInterface(int /*long*/ riid, int /*long*/ ppvObject) {
+	if (riid == 0 || ppvObject == 0)
+		return COM.E_INVALIDARG;
+	GUID guid = new GUID();
+	COM.MoveMemory(guid, riid, GUID.sizeof);
+	if (COM.IsEqualGUID(guid, COM.IIDIUnknown)) {
+		COM.MoveMemory(ppvObject, new int /*long*/[] {iUnknown.getAddress()}, OS.PTR_SIZEOF);
+		AddRef();
+		return COM.S_OK;
+	}
+	if (COM.IsEqualGUID(guid, COM.IIDIPropertyNotifySink)) {
+		COM.MoveMemory(ppvObject, new int /*long*/[] {iPropertyNotifySink.getAddress()}, OS.PTR_SIZEOF);
+		AddRef();
+		return COM.S_OK;
+	}
+	COM.MoveMemory(ppvObject, new int /*long*/[] {0}, OS.PTR_SIZEOF);
+	return COM.E_NOINTERFACE;
+}
+int Release() {
+	refCount--;
+	if (refCount == 0) {
+		disposeCOMInterfaces();
+	}
+	return refCount;
+}
+void removeListener(int propertyID, OleListener listener) {
+	if (listener == null) OLE.error (SWT.ERROR_NULL_ARGUMENT);
+	if (eventTable == null) return;
+	eventTable.unhook (propertyID, listener);
+}
+}