oleclientsite.java

源码为Eclipse开源开发平台桌面开发工具SWT的源代码,

							fileInput.close();
							stream.Release();
							storage.Release();
							OLE.error(OLE.ERROR_CANNOT_OPEN_FILE, result);
						}
					}
					fileInput.close();
					stream.Commit(COM.STGC_DEFAULT);
					stream.Release();
				} catch (IOException err) {
					stream.Release();
					storage.Release();
					OLE.error(OLE.ERROR_CANNOT_OPEN_FILE);
				}
			}
			
			// Open a temporary storage object
			tempStorage = createTempStorage();
			// Copy over contents of file
			int result = storage.CopyTo(0, null, null, tempStorage.getAddress());
			storage.Release();
			if (result != COM.S_OK) OLE.error(OLE.ERROR_CANNOT_OPEN_FILE, result);

			// create ole client
			int[] ppv = new int[1];
			result = COM.CoCreateInstance(appClsid, 0, COM.CLSCTX_INPROC_HANDLER | COM.CLSCTX_INPROC_SERVER, COM.IIDIUnknown, ppv);
			if (result != COM.S_OK) OLE.error(OLE.ERROR_CANNOT_CREATE_OBJECT, result);
			objIUnknown = new IUnknown(ppv[0]);
			// get the persistant storage of the ole client
			ppv = new int[1];
			result = objIUnknown.QueryInterface(COM.IIDIPersistStorage, ppv);
			if (result != COM.S_OK) OLE.error(OLE.ERROR_CANNOT_CREATE_OBJECT, result);
			IPersistStorage iPersistStorage = new IPersistStorage(ppv[0]);
			// load the contents of the file into the ole client site
			result = iPersistStorage.Load(tempStorage.getAddress());
			iPersistStorage.Release();
			if (result != COM.S_OK)OLE.error(OLE.ERROR_CANNOT_CREATE_OBJECT, result);
		}
		
		// Init sinks
		addObjectReferences();
		
		if (COM.OleRun(objIUnknown.getAddress()) == OLE.S_OK) state = STATE_RUNNING;
		
	} catch (SWTException e) {
		dispose();
		disposeCOMInterfaces();
		throw e;
	}
}
protected void addObjectReferences() {
	//
	int[] ppvObject = new int[1];
	if (objIUnknown.QueryInterface(COM.IIDIPersist, ppvObject) == COM.S_OK) {
		IPersist objIPersist = new IPersist(ppvObject[0]);
		GUID tempid = new GUID();
		if (objIPersist.GetClassID(tempid) == COM.S_OK)
			objClsid = tempid;
		objIPersist.Release();
	}
	
	//
	ppvObject = new int[1];
	int result = objIUnknown.QueryInterface(COM.IIDIViewObject2, ppvObject);
	if (result != COM.S_OK)
		OLE.error(OLE.ERROR_INTERFACE_NOT_FOUND, result);
	objIViewObject2 = new IViewObject2(ppvObject[0]);
	objIViewObject2.SetAdvise(aspect, 0, iAdviseSink.getAddress());

	//
	ppvObject = new int[1];
	result = objIUnknown.QueryInterface(COM.IIDIOleObject, ppvObject);
	if (result != COM.S_OK)
		OLE.error(OLE.ERROR_INTERFACE_NOT_FOUND, result);
	objIOleObject = new IOleObject(ppvObject[0]);
	objIOleObject.SetClientSite(iOleClientSite.getAddress());
	int[] pdwConnection = new int[1];
	objIOleObject.Advise(iAdviseSink.getAddress(), pdwConnection);
	objIOleObject.SetHostNames("main", "main");  //$NON-NLS-1$ //$NON-NLS-2$

	// Notify the control object that it is embedded in an OLE container
	COM.OleSetContainedObject(objIUnknown.getAddress(), true);

	// Is OLE object linked or embedded?
	ppvObject = new int[1];
	if (objIUnknown.QueryInterface(COM.IIDIOleLink, ppvObject) == COM.S_OK) {
		IOleLink objIOleLink = new IOleLink(ppvObject[0]);
		int[] ppmk = new int[1];
		if (objIOleLink.GetSourceMoniker(ppmk) == COM.S_OK) {
			IMoniker objIMoniker = new IMoniker(ppmk[0]);
			objIMoniker.Release();
			type = COM.OLELINKED;
			objIOleLink.BindIfRunning();
		} else {
			isStatic = true;
		}
		objIOleLink.Release();
	}
}
protected int AddRef() {
	refCount++;
	return refCount;
}
private int CanInPlaceActivate() {
	if (aspect == COM.DVASPECT_CONTENT && type == COM.OLEEMBEDDED)
		return COM.S_OK;
		
	return COM.S_FALSE;
}
private int ContextSensitiveHelp(int fEnterMode) {
	return COM.S_OK;
}
protected void createCOMInterfaces() {
	
	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();}
	};
	
	iOleClientSite = new COMObject(new int[]{2, 0, 0, 0, 3, 1, 0, 1, 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();}
		public int method3(int[] args) {return SaveObject();}
		// method4 GetMoniker - not implemented
		public int method5(int[] args) {return GetContainer(args[0]);}
		public int method6(int[] args) {return ShowObject();}
		public int method7(int[] args) {return OnShowWindow(args[0]);}
		// method8 RequestNewObjectLayout - not implemented
	};
	
	iAdviseSink = new COMObject(new int[]{2, 0, 0, 2, 2, 1, 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();}
		public int method3(int[] args) {return OnDataChange(args[0], args[1]);}
		public int method4(int[] args) {return OnViewChange(args[0], args[1]);}
		//method5 OnRename - not implemented
		public int method6(int[] args) {OnSave();return 0;}
		public int method7(int[] args) {return OnClose();}	
	};
	
	iOleInPlaceSite = new COMObject(new int[]{2, 0, 0, 1, 1, 0, 0, 0, 5, 1, 1, 0, 0, 0, 1}){
		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();}
		public int method3(int[] args) {return GetWindow(args[0]);}
		public int method4(int[] args) {return ContextSensitiveHelp(args[0]);}
		public int method5(int[] args) {return CanInPlaceActivate();}
		public int method6(int[] args) {return OnInPlaceActivate();}
		public int method7(int[] args) {return OnUIActivate();}
		public int method8(int[] args) {return GetWindowContext(args[0], args[1], args[2], args[3], args[4]);}
		public int method9(int[] args) {return Scroll(args[0]);}
		public int method10(int[] args) {return OnUIDeactivate(args[0]);}
		public int method11(int[] args) {return OnInPlaceDeactivate();}
		// method12 DiscardUndoState - not implemented
		// method13 DeactivateAndUndoChange - not implemented
		public int method14(int[] args) {return OnPosRectChange(args[0]);}
	};
	
	iOleDocumentSite = new COMObject(new int[]{2, 0, 0, 1}){
		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();}
		public int method3(int[] args) {return ActivateMe(args[0]);}
	};	
}
protected IStorage createTempStorage() {
	int[] tempStorage = new int[1];
	int grfMode = COM.STGM_READWRITE | COM.STGM_SHARE_EXCLUSIVE | COM.STGM_DELETEONRELEASE;
	int result = COM.StgCreateDocfile(null, grfMode, 0, tempStorage);
	if (result != COM.S_OK) OLE.error(OLE.ERROR_CANNOT_CREATE_FILE, result);
	return new IStorage(tempStorage[0]);
}
/**
 * Deactivates an active in-place object and discards the object's undo state.
 */
public void deactivateInPlaceClient() {
	if (objIOleInPlaceObject != null) {
		objIOleInPlaceObject.InPlaceDeactivate();
	}
}
private void deleteTempStorage() {
	//Destroy this item's contents in the temp root IStorage.
	if (tempStorage != null){
		tempStorage.Release();
	}
	tempStorage = null;
}
protected void disposeCOMInterfaces() {
	if (iUnknown != null)
		iUnknown.dispose();
	iUnknown = null;
	
	if (iOleClientSite != null)
	iOleClientSite.dispose();
	iOleClientSite = null;
	
	if (iAdviseSink != null)
		iAdviseSink.dispose();
	iAdviseSink = null;
	
	if (iOleInPlaceSite != null)
		iOleInPlaceSite.dispose();
	iOleInPlaceSite = null;
	
	if (iOleDocumentSite != null)
		iOleDocumentSite.dispose();
	iOleDocumentSite = null;
}
/**
 * Requests that the OLE Document or ActiveX Control perform an action; actions are almost always
 * changes to the activation state.
 *
 * @param verb the operation that is requested.  This is one of the OLE.OLEIVERB_ values
 *
 * @return an HRESULT value indicating the success of the operation request; OLE.S_OK indicates
 *         success
 */
public int doVerb(int verb) {
	// Not all OLE clients (for example PowerPoint) can be set into the running state in the constructor.
	// The fix is to ensure that the client is in the running state before invoking any verb on it.
	if (state == STATE_NONE) {
		if (COM.OleRun(objIUnknown.getAddress()) == OLE.S_OK) state = STATE_RUNNING;
	}	
	if (state == STATE_NONE || isStatic)
		return COM.E_FAIL;
	
	// See PR: 1FV9RZW
	int result = objIOleObject.DoVerb(verb, null, iOleClientSite.getAddress(), 0, handle, null);

	if (state != STATE_RUNNING && inInit) {
		updateStorage();
		inInit = false;
	}
	return result;
}
/**
 * Asks the OLE Document or ActiveX Control to execute a command from a standard 
 * list of commands. The OLE Document or ActiveX Control must support the IOleCommandTarget
 * interface.  The OLE Document or ActiveX Control does not have to support all the commands
 * in the standard list.  To check if a command is supported, you can call queryStatus with
 * the cmdID.
 *
 * @param cmdID the ID of a command; these are the OLE.OLECMDID_ values - a small set of common
 *              commands
 * @param options the optional flags; these are the OLE.OLECMDEXECOPT_ values
 * @param in the argument for the command
 * @param out the return value of the command
 *
 * @return an HRESULT value; OLE.S_OK is returned if successful
 *
 */
public int exec(int cmdID, int options, Variant in, Variant out) {
	
	if (objIOleCommandTarget == null) {
		int[] address = new int[1];
		if (objIUnknown.QueryInterface(COM.IIDIOleCommandTarget, address) != COM.S_OK)
			return OLE.ERROR_INTERFACE_NOT_FOUND;
		objIOleCommandTarget = new IOleCommandTarget(address[0]);
	}
	
	int inAddress = 0;
	if (in != null){
		inAddress = OS.GlobalAlloc(OS.GMEM_FIXED | OS.GMEM_ZEROINIT, Variant.sizeof);
		in.getData(inAddress);
	}
	int outAddress = 0;
	if (out != null){
		outAddress = OS.GlobalAlloc(OS.GMEM_FIXED | OS.GMEM_ZEROINIT, Variant.sizeof);
		out.getData(outAddress);
	}
		
	int result = objIOleCommandTarget.Exec(null, cmdID, options, inAddress, outAddress);
	
	if (inAddress != 0){
		COM.VariantClear(inAddress);
		OS.GlobalFree(inAddress);
	}
	if (outAddress != 0) {
		out.setData(outAddress);
		COM.VariantClear(outAddress);
		OS.GlobalFree(outAddress);
	}
		
	return result;
}
IDispatch getAutomationObject() {
	int[] ppvObject = new int[1];
	if (objIUnknown.QueryInterface(COM.IIDIDispatch, ppvObject) != COM.S_OK)
		return null;
	return new IDispatch(ppvObject[0]);
}
protected GUID getClassID(String clientName) {
	// create a GUID struct to hold the result
	GUID guid = new GUID();

	// create a null terminated array of char
	char[] buffer = null;
	if (clientName != null) {
		int count = clientName.length();
		buffer = new char[count + 1];
		clientName.getChars(0, count, buffer, 0);
	}
	if (COM.CLSIDFromProgID(buffer, guid) != COM.S_OK){
		int result = COM.CLSIDFromString(buffer, guid);
		if (result != COM.S_OK)
			OLE.error(OLE.ERROR_INVALID_CLASSID, result);
	}
	return guid;
}
private int GetContainer(int ppContainer) {
	/* Simple containers that do not support links to their embedded 
	 * objects probably do not need to implement this method. Instead, 
	 * they can return E_NOINTERFACE and set ppContainer to NULL.
	 */
	if (ppContainer != 0)
		COM.MoveMemory(ppContainer, new int[]{0}, 4);
	return COM.E_NOINTERFACE;
}
private SIZE getExtent() {
	SIZE sizel = new SIZE();
	// get the current size of the embedded OLENatives object
	if (objIOleObject != null) {
		if ( objIViewObject2 != null && !COM.OleIsRunning(objIOleObject.getAddress())) {
			objIViewObject2.GetExtent(aspect, -1, null, sizel);
		} else {
			objIOleObject.GetExtent(aspect, sizel);
		}
	}
	return xFormHimetricToPixels(sizel);
}
public Rectangle getIndent() {
	return new Rectangle(indent.left, indent.right, indent.top, indent.bottom);
}
/**
 * Returns the program ID of the OLE Document or ActiveX Control.
 *
 * @return the program ID of the OLE Document or ActiveX Control