bundles/org.eclipse.swt/Eclipse SWT OLE Win32/win32/org/eclipse/swt/ole/win32/OleEventSink.java - platform/eclipse.platform.swt - Git at Google

 package org.eclipse.swt.ole.win32;

 /*
  * (c) Copyright IBM Corp. 2000, 2001.
  * All Rights Reserved
  */
 import org.eclipse.swt.*;
 import org.eclipse.swt.internal.ole.win32.*;
 import org.eclipse.swt.internal.win32.*;

 final class OleEventSink
 {
 	private OleControlSite controlSite;

 	private COMObject iUnknown;
 	private COMObject iDispatch;
 	private int refCount;

 	private int  eventCookie;
 	private GUID eventSinkDispInterface;

 	private OleEventTable eventTable;

 OleEventSink(OleControlSite controlSite) {

 	this.controlSite = controlSite;

 	createCOMInterfaces();
 }
 void addListener(int eventID, OleListener listener) {
 	if (listener == null) OLE.error (SWT.ERROR_NULL_ARGUMENT);
 	if (eventTable == null) eventTable = new OleEventTable ();
 	eventTable.hook(eventID, listener);
 }
 int AddRef() {
 	refCount++;
 	return refCount;
 }
 void connect(IUnknown objIUnknown) {

 	// What is the custom Event Sink interface?
 	eventSinkDispInterface = getEventSinkDispInterface(objIUnknown);

 	// It is possible that the Control does not have an Event sink.
 	// In this case, just carry on.
 	if (eventSinkDispInterface == null) return;

 	int[] ppvObject = new int[1];
 	if (objIUnknown.QueryInterface(COM.IIDIConnectionPointContainer, ppvObject) == COM.S_OK) {
 		IConnectionPointContainer cpc = new IConnectionPointContainer(ppvObject[0]);
 		int[] ppCP = new int[1];
 		if (cpc.FindConnectionPoint(eventSinkDispInterface, ppCP) == COM.S_OK) {
 			IConnectionPoint cp = new IConnectionPoint(ppCP[0]);
 			int[] pCookie = new int[1];
 			if (cp.Advise(iUnknown.getAddress(), pCookie) == COM.S_OK)
 				eventCookie = pCookie[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 method0(int[] args) {return QueryInterface(args[0], args[1]);}
 		public int method1(int[] args) {return AddRef();}
 		public int method2(int[] args) {return Release();}
 	};
 	iDispatch = new COMObject(new int[]{2, 0, 0, 1, 3, 4, 8}){
 		public int method0(int[] args) {return QueryInterface(args[0], args[1]);}
 		public int method1(int[] args) {return AddRef();}
 		public int method2(int[] args) {return Release();}
 		// method3 GetTypeInfoCount - not implemented
 		// method4 GetTypeInfo - not implemented
 		// method5 GetIDsOfNames - not implemented
 		public int method6(int[] args) {return Invoke(args[0], args[1], args[2], args[3], args[4], args[5], args[6], args[7]);}
 	};
 }
 void disconnect(IUnknown objIUnknown) {

 	// disconnect event sink
 	if (eventCookie != 0 && objIUnknown != null) {
 		int[] ppvObject = new int[1];
 		if (objIUnknown.QueryInterface(COM.IIDIConnectionPointContainer, ppvObject) == COM.S_OK) {
 			IConnectionPointContainer cpc = new IConnectionPointContainer(ppvObject[0]);
 			if (cpc.FindConnectionPoint(eventSinkDispInterface, ppvObject) == COM.S_OK) {
 				IConnectionPoint cp = new IConnectionPoint(ppvObject[0]);
 				if (cp.Unadvise(eventCookie) == COM.S_OK) {
 					eventCookie = 0;
 				}
 				cp.Release();
 			}
 			cpc.Release();
 		}
 	}
 }
 private void disposeCOMInterfaces() {

 	if (iUnknown != null);
 		iUnknown.dispose();
 	iUnknown = null;

 	if (iDispatch != null)
 		iDispatch.dispose();
 	iDispatch = null;

 }
 private GUID getEventSinkDispInterface(IUnknown objIUnknown) {

 	// get Event Sink I/F from IProvideClassInfo2
 	int[] ppvObject = new int[1];
 	if (objIUnknown.QueryInterface(COM.IIDIProvideClassInfo2, ppvObject) == COM.S_OK) {
 		IProvideClassInfo2 pci2 = new IProvideClassInfo2(ppvObject[0]);
 		GUID eventsinkdisp = new GUID();
 		int result = pci2.GetGUID(COM.GUIDKIND_DEFAULT_SOURCE_DISP_IID, eventsinkdisp);
 		pci2.Release();
 		if (result == COM.S_OK) {
 			eventSinkDispInterface = eventsinkdisp;
 			return eventSinkDispInterface;
 		}

 	}

 	// get Event Sink I/F from IProvideClassInfo
 	if (objIUnknown.QueryInterface(COM.IIDIProvideClassInfo, ppvObject) == COM.S_OK) {
 		int[] ppTI = new int[1];
 		int[] ppEI = new int[1];
 		TYPEATTR typeAttribute = null;
 		IProvideClassInfo pci = new IProvideClassInfo(ppvObject[0]);
 		int result = pci.GetClassInfo(ppTI);
 		pci.Release();
 		if (result != COM.S_OK) return null;

 		if (ppTI != null && ppTI.length == 1) {
 			ITypeInfo classInfo = new ITypeInfo(ppTI[0]);
 			int[] ppTypeAttr = new int[1];
 			result = classInfo.GetTypeAttr(ppTypeAttr);
 			if (result != COM.S_OK) {
 				classInfo.Release();
 				return null;
 			}
 			typeAttribute = new TYPEATTR();
 			COM.MoveMemory(typeAttribute, ppTypeAttr[0], TYPEATTR.sizeof);
 			classInfo.ReleaseTypeAttr(ppTypeAttr[0]);
 			int implMask = COM.IMPLTYPEFLAG_FDEFAULT | COM.IMPLTYPEFLAG_FSOURCE | COM.IMPLTYPEFLAG_FRESTRICTED;
 			int implBits = COM.IMPLTYPEFLAG_FDEFAULT | COM.IMPLTYPEFLAG_FSOURCE;
 			for (int i = 0; i < typeAttribute.cImplTypes; i++) {
 				int[] pImplTypeFlags = new int[1];
 				if (classInfo.GetImplTypeFlags(i, pImplTypeFlags) == COM.S_OK) {
 					if ((pImplTypeFlags[0] & implMask) == implBits) {
 						int[] pRefType = new int[1];
 						if (classInfo.GetRefTypeOfImplType(i, pRefType) == COM.S_OK) {
 							classInfo.GetRefTypeInfo(pRefType[0], ppEI);
 						}
 					}
 				}
 			}
 			classInfo.Release();

 			//
 			if (ppEI != null && ppEI.length == 1) {
 				ppTypeAttr = new int[1];
 				ITypeInfo eventInfo = new ITypeInfo(ppEI[0]);
 				if (eventInfo.GetTypeAttr(ppTypeAttr) == COM.S_OK) {
 					typeAttribute = new TYPEATTR();
 					COM.MoveMemory(typeAttribute, ppTypeAttr[0], TYPEATTR.sizeof);
 					eventInfo.ReleaseTypeAttr(ppTypeAttr[0]);
 					if (ppTypeAttr != null && ppTypeAttr[0] != 0) {
 						eventSinkDispInterface = new GUID();
 						eventSinkDispInterface.data1 = typeAttribute.guid_data1;
 						eventSinkDispInterface.data2 = typeAttribute.guid_data2;
 						eventSinkDispInterface.data3 = typeAttribute.guid_data3;
 						eventSinkDispInterface.b0 = typeAttribute.guid_b0;
 						eventSinkDispInterface.b1 = typeAttribute.guid_b1;
 						eventSinkDispInterface.b2 = typeAttribute.guid_b2;
 						eventSinkDispInterface.b3 = typeAttribute.guid_b3;
 						eventSinkDispInterface.b4 = typeAttribute.guid_b4;
 						eventSinkDispInterface.b5 = typeAttribute.guid_b5;
 						eventSinkDispInterface.b6 = typeAttribute.guid_b6;
 						eventSinkDispInterface.b7 = typeAttribute.guid_b7;
 					}
 				}
 				eventInfo.Release();
 			}
 		}
 	}
 	return eventSinkDispInterface;
 }
 private int Invoke(int dispIdMember, int riid, int lcid, int dwFlags, int pDispParams, int pVarResult, int pExcepInfo, int pArgErr)
 {
 	if (eventTable == null || !eventTable.hooks(dispIdMember)) return COM.S_OK;

 	// Construct an array of the parameters that are passed in
 	// Note: parameters are passed in reverse order - here we will correct the order
 	Variant[] eventInfo = null;
 	if (pDispParams != 0) {
 		DISPPARAMS dispParams = new DISPPARAMS();
 		COM.MoveMemory(dispParams, pDispParams, DISPPARAMS.sizeof);
 		eventInfo = new Variant[dispParams.cArgs];
 		int size = Variant.sizeof;
 		int offset = (dispParams.cArgs - 1) * size;

 		for (int j = 0; j < dispParams.cArgs; j++){
 			eventInfo[j] = new Variant();
 			eventInfo[j].setData(dispParams.rgvarg + offset);
 			offset = offset - size;
 		}
 	}

 	OleEvent event = new OleEvent();
 	event.arguments = eventInfo;
 	notifyListener(dispIdMember,event);

 	return COM.S_OK;
 }
 /**
 * 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 SWTError <ul>
 *		<li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
 *		<li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
 * 		<li>ERROR_NULL_ARGUMENT when handler is null</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 QueryInterface(int riid, int 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.IsEqualGUID(guid, COM.IIDIDispatch) ||
 			COM.IsEqualGUID(guid, eventSinkDispInterface)) {
 		COM.MoveMemory(ppvObject, new int[] {iDispatch.getAddress()}, 4);
 		AddRef();
 		return OLE.S_OK;
 	}

 	COM.MoveMemory(ppvObject, new int[] {0}, 4);
 	return COM.E_NOINTERFACE;
 }
 int Release() {
 	refCount--;
 	if (refCount == 0) {
 		disposeCOMInterfaces();
 	}

 	return refCount;
 }
 void removeListener(int eventID, OleListener listener) {
 	if (listener == null) OLE.error (SWT.ERROR_NULL_ARGUMENT);
 	if (eventTable == null) return;
 	eventTable.unhook (eventID, listener);
 }
 }
	package org.eclipse.swt.ole.win32;

	/*
	* (c) Copyright IBM Corp. 2000, 2001.
	* All Rights Reserved
	*/
	import org.eclipse.swt.*;
	import org.eclipse.swt.internal.ole.win32.*;
	import org.eclipse.swt.internal.win32.*;

	final class OleEventSink
	{
	private OleControlSite controlSite;

	private COMObject iUnknown;
	private COMObject iDispatch;
	private int refCount;

	private int eventCookie;
	private GUID eventSinkDispInterface;

	private OleEventTable eventTable;

	OleEventSink(OleControlSite controlSite) {

	this.controlSite = controlSite;

	createCOMInterfaces();
	}
	void addListener(int eventID, OleListener listener) {
	if (listener == null) OLE.error (SWT.ERROR_NULL_ARGUMENT);
	if (eventTable == null) eventTable = new OleEventTable ();
	eventTable.hook(eventID, listener);
	}
	int AddRef() {
	refCount++;
	return refCount;
	}
	void connect(IUnknown objIUnknown) {

	// What is the custom Event Sink interface?
	eventSinkDispInterface = getEventSinkDispInterface(objIUnknown);

	// It is possible that the Control does not have an Event sink.
	// In this case, just carry on.
	if (eventSinkDispInterface == null) return;

	int[] ppvObject = new int[1];
	if (objIUnknown.QueryInterface(COM.IIDIConnectionPointContainer, ppvObject) == COM.S_OK) {
	IConnectionPointContainer cpc = new IConnectionPointContainer(ppvObject[0]);
	int[] ppCP = new int[1];
	if (cpc.FindConnectionPoint(eventSinkDispInterface, ppCP) == COM.S_OK) {
	IConnectionPoint cp = new IConnectionPoint(ppCP[0]);
	int[] pCookie = new int[1];
	if (cp.Advise(iUnknown.getAddress(), pCookie) == COM.S_OK)
	eventCookie = pCookie[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 method0(int[] args) {return QueryInterface(args[0], args[1]);}
	public int method1(int[] args) {return AddRef();}
	public int method2(int[] args) {return Release();}
	};
	iDispatch = new COMObject(new int[]{2, 0, 0, 1, 3, 4, 8}){
	public int method0(int[] args) {return QueryInterface(args[0], args[1]);}
	public int method1(int[] args) {return AddRef();}
	public int method2(int[] args) {return Release();}
	// method3 GetTypeInfoCount - not implemented
	// method4 GetTypeInfo - not implemented
	// method5 GetIDsOfNames - not implemented
	public int method6(int[] args) {return Invoke(args[0], args[1], args[2], args[3], args[4], args[5], args[6], args[7]);}
	};
	}
	void disconnect(IUnknown objIUnknown) {

	// disconnect event sink
	if (eventCookie != 0 && objIUnknown != null) {
	int[] ppvObject = new int[1];
	if (objIUnknown.QueryInterface(COM.IIDIConnectionPointContainer, ppvObject) == COM.S_OK) {
	IConnectionPointContainer cpc = new IConnectionPointContainer(ppvObject[0]);
	if (cpc.FindConnectionPoint(eventSinkDispInterface, ppvObject) == COM.S_OK) {
	IConnectionPoint cp = new IConnectionPoint(ppvObject[0]);
	if (cp.Unadvise(eventCookie) == COM.S_OK) {
	eventCookie = 0;
	}
	cp.Release();
	}
	cpc.Release();
	}
	}
	}
	private void disposeCOMInterfaces() {

	if (iUnknown != null);
	iUnknown.dispose();
	iUnknown = null;

	if (iDispatch != null)
	iDispatch.dispose();
	iDispatch = null;

	}
	private GUID getEventSinkDispInterface(IUnknown objIUnknown) {

	// get Event Sink I/F from IProvideClassInfo2
	int[] ppvObject = new int[1];
	if (objIUnknown.QueryInterface(COM.IIDIProvideClassInfo2, ppvObject) == COM.S_OK) {
	IProvideClassInfo2 pci2 = new IProvideClassInfo2(ppvObject[0]);
	GUID eventsinkdisp = new GUID();
	int result = pci2.GetGUID(COM.GUIDKIND_DEFAULT_SOURCE_DISP_IID, eventsinkdisp);
	pci2.Release();
	if (result == COM.S_OK) {
	eventSinkDispInterface = eventsinkdisp;
	return eventSinkDispInterface;
	}

	}

	// get Event Sink I/F from IProvideClassInfo
	if (objIUnknown.QueryInterface(COM.IIDIProvideClassInfo, ppvObject) == COM.S_OK) {
	int[] ppTI = new int[1];
	int[] ppEI = new int[1];
	TYPEATTR typeAttribute = null;
	IProvideClassInfo pci = new IProvideClassInfo(ppvObject[0]);
	int result = pci.GetClassInfo(ppTI);
	pci.Release();
	if (result != COM.S_OK) return null;

	if (ppTI != null && ppTI.length == 1) {
	ITypeInfo classInfo = new ITypeInfo(ppTI[0]);
	int[] ppTypeAttr = new int[1];
	result = classInfo.GetTypeAttr(ppTypeAttr);
	if (result != COM.S_OK) {
	classInfo.Release();
	return null;
	}
	typeAttribute = new TYPEATTR();
	COM.MoveMemory(typeAttribute, ppTypeAttr[0], TYPEATTR.sizeof);
	classInfo.ReleaseTypeAttr(ppTypeAttr[0]);
	int implMask = COM.IMPLTYPEFLAG_FDEFAULT \| COM.IMPLTYPEFLAG_FSOURCE \| COM.IMPLTYPEFLAG_FRESTRICTED;
	int implBits = COM.IMPLTYPEFLAG_FDEFAULT \| COM.IMPLTYPEFLAG_FSOURCE;
	for (int i = 0; i < typeAttribute.cImplTypes; i++) {
	int[] pImplTypeFlags = new int[1];
	if (classInfo.GetImplTypeFlags(i, pImplTypeFlags) == COM.S_OK) {
	if ((pImplTypeFlags[0] & implMask) == implBits) {
	int[] pRefType = new int[1];
	if (classInfo.GetRefTypeOfImplType(i, pRefType) == COM.S_OK) {
	classInfo.GetRefTypeInfo(pRefType[0], ppEI);
	}
	}
	}
	}
	classInfo.Release();

	//
	if (ppEI != null && ppEI.length == 1) {
	ppTypeAttr = new int[1];
	ITypeInfo eventInfo = new ITypeInfo(ppEI[0]);
	if (eventInfo.GetTypeAttr(ppTypeAttr) == COM.S_OK) {
	typeAttribute = new TYPEATTR();
	COM.MoveMemory(typeAttribute, ppTypeAttr[0], TYPEATTR.sizeof);
	eventInfo.ReleaseTypeAttr(ppTypeAttr[0]);
	if (ppTypeAttr != null && ppTypeAttr[0] != 0) {
	eventSinkDispInterface = new GUID();
	eventSinkDispInterface.data1 = typeAttribute.guid_data1;
	eventSinkDispInterface.data2 = typeAttribute.guid_data2;
	eventSinkDispInterface.data3 = typeAttribute.guid_data3;
	eventSinkDispInterface.b0 = typeAttribute.guid_b0;
	eventSinkDispInterface.b1 = typeAttribute.guid_b1;
	eventSinkDispInterface.b2 = typeAttribute.guid_b2;
	eventSinkDispInterface.b3 = typeAttribute.guid_b3;
	eventSinkDispInterface.b4 = typeAttribute.guid_b4;
	eventSinkDispInterface.b5 = typeAttribute.guid_b5;
	eventSinkDispInterface.b6 = typeAttribute.guid_b6;
	eventSinkDispInterface.b7 = typeAttribute.guid_b7;
	}
	}
	eventInfo.Release();
	}
	}
	}
	return eventSinkDispInterface;
	}
	private int Invoke(int dispIdMember, int riid, int lcid, int dwFlags, int pDispParams, int pVarResult, int pExcepInfo, int pArgErr)
	{
	if (eventTable == null \|\| !eventTable.hooks(dispIdMember)) return COM.S_OK;

	// Construct an array of the parameters that are passed in
	// Note: parameters are passed in reverse order - here we will correct the order
	Variant[] eventInfo = null;
	if (pDispParams != 0) {
	DISPPARAMS dispParams = new DISPPARAMS();
	COM.MoveMemory(dispParams, pDispParams, DISPPARAMS.sizeof);
	eventInfo = new Variant[dispParams.cArgs];
	int size = Variant.sizeof;
	int offset = (dispParams.cArgs - 1) * size;

	for (int j = 0; j < dispParams.cArgs; j++){
	eventInfo[j] = new Variant();
	eventInfo[j].setData(dispParams.rgvarg + offset);
	offset = offset - size;
	}
	}

	OleEvent event = new OleEvent();
	event.arguments = eventInfo;
	notifyListener(dispIdMember,event);

	return COM.S_OK;
	}
	/**
	* 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 SWTError <ul>
	* <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
	* <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
	* <li>ERROR_NULL_ARGUMENT when handler is null</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 QueryInterface(int riid, int 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.IsEqualGUID(guid, COM.IIDIDispatch) \|\|
	COM.IsEqualGUID(guid, eventSinkDispInterface)) {
	COM.MoveMemory(ppvObject, new int[] {iDispatch.getAddress()}, 4);
	AddRef();
	return OLE.S_OK;
	}

	COM.MoveMemory(ppvObject, new int[] {0}, 4);
	return COM.E_NOINTERFACE;
	}
	int Release() {
	refCount--;
	if (refCount == 0) {
	disposeCOMInterfaces();
	}

	return refCount;
	}
	void removeListener(int eventID, OleListener listener) {
	if (listener == null) OLE.error (SWT.ERROR_NULL_ARGUMENT);
	if (eventTable == null) return;
	eventTable.unhook (eventID, listener);
	}
	}