1fbcf0fe9SAndrew Rist /************************************************************** 2*99e632bcSmseidel * 3fbcf0fe9SAndrew Rist * Licensed to the Apache Software Foundation (ASF) under one 4fbcf0fe9SAndrew Rist * or more contributor license agreements. See the NOTICE file 5fbcf0fe9SAndrew Rist * distributed with this work for additional information 6fbcf0fe9SAndrew Rist * regarding copyright ownership. The ASF licenses this file 7fbcf0fe9SAndrew Rist * to you under the Apache License, Version 2.0 (the 8fbcf0fe9SAndrew Rist * "License"); you may not use this file except in compliance 9fbcf0fe9SAndrew Rist * with the License. You may obtain a copy of the License at 10*99e632bcSmseidel * 11fbcf0fe9SAndrew Rist * http://www.apache.org/licenses/LICENSE-2.0 12*99e632bcSmseidel * 13fbcf0fe9SAndrew Rist * Unless required by applicable law or agreed to in writing, 14fbcf0fe9SAndrew Rist * software distributed under the License is distributed on an 15fbcf0fe9SAndrew Rist * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16fbcf0fe9SAndrew Rist * KIND, either express or implied. See the License for the 17fbcf0fe9SAndrew Rist * specific language governing permissions and limitations 18fbcf0fe9SAndrew Rist * under the License. 19*99e632bcSmseidel * 20fbcf0fe9SAndrew Rist *************************************************************/ 21fbcf0fe9SAndrew Rist 22fbcf0fe9SAndrew Rist 23*99e632bcSmseidel 24cdf0e10cSrcweir #ifndef _TARGET_HXX_ 25cdf0e10cSrcweir #define _TARGET_HXX_ 26cdf0e10cSrcweir 27cdf0e10cSrcweir #include <com/sun/star/lang/XInitialization.hpp> 28cdf0e10cSrcweir #include <com/sun/star/datatransfer/dnd/XDropTarget.hpp> 29cdf0e10cSrcweir #include <com/sun/star/datatransfer/dnd/DropTargetDragEnterEvent.hpp> 30cdf0e10cSrcweir #include <com/sun/star/lang/XServiceInfo.hpp> 31cdf0e10cSrcweir 32cdf0e10cSrcweir #ifndef _CPPUHELPER_COMPBASE2_HXX_ 33cdf0e10cSrcweir #include <cppuhelper/compbase3.hxx> 34cdf0e10cSrcweir #endif 35cdf0e10cSrcweir #include <cppuhelper/interfacecontainer.hxx> 36cdf0e10cSrcweir #ifndef _OSL_MUTEX_H_ 37cdf0e10cSrcweir #include <osl/mutex.hxx> 38cdf0e10cSrcweir #endif 39cdf0e10cSrcweir 40cdf0e10cSrcweir #if defined _MSC_VER 41cdf0e10cSrcweir #pragma warning(push,1) 42cdf0e10cSrcweir #endif 43cdf0e10cSrcweir #include <oleidl.h> 44cdf0e10cSrcweir #if defined _MSC_VER 45cdf0e10cSrcweir #pragma warning(pop) 46cdf0e10cSrcweir #endif 47cdf0e10cSrcweir #include "globals.hxx" 48cdf0e10cSrcweir #include "../../inc/DtObjFactory.hxx" 49cdf0e10cSrcweir 50cdf0e10cSrcweir 51cdf0e10cSrcweir using namespace ::com::sun::star::lang; 52cdf0e10cSrcweir using namespace ::com::sun::star::uno; 53cdf0e10cSrcweir using namespace cppu; 54cdf0e10cSrcweir using namespace osl; 55cdf0e10cSrcweir using namespace rtl; 56cdf0e10cSrcweir using namespace ::com::sun::star::datatransfer; 57cdf0e10cSrcweir using namespace ::com::sun::star::datatransfer::dnd; 58cdf0e10cSrcweir 59cdf0e10cSrcweir 60cdf0e10cSrcweir // The client 61cdf0e10cSrcweir // has to call XComponent::dispose. The thread that calls initialize 62cdf0e10cSrcweir // must also execute the destruction of the instance. This is because 63cdf0e10cSrcweir // initialize calls OleInitialize and the destructor calls OleUninitialize. 64cdf0e10cSrcweir // If the service calls OleInitialize then it also calls OleUnitialize when 65cdf0e10cSrcweir // it is destroyed. Therefore no second instance may exist which was 66cdf0e10cSrcweir // created in the same thread and still needs OLE. 67cdf0e10cSrcweir class DropTarget: public MutexDummy, 68cdf0e10cSrcweir public WeakComponentImplHelper3< XInitialization, XDropTarget, XServiceInfo> 69cdf0e10cSrcweir 70cdf0e10cSrcweir { 71cdf0e10cSrcweir private: 72cdf0e10cSrcweir friend DWORD WINAPI DndTargetOleSTAFunc(LPVOID pParams); 73cdf0e10cSrcweir // The native window which acts as drop target. 74*99e632bcSmseidel // It is set in initialize. In case RegisterDragDrop fails it is set 75*99e632bcSmseidel // to NULL 76cdf0e10cSrcweir HWND m_hWnd; // set by initialize 77cdf0e10cSrcweir // Holds the thread id of the thread which created the window that is the 78cdf0e10cSrcweir // drop target. Only used when DropTarget::initialize is called from an MTA 79cdf0e10cSrcweir // thread 80cdf0e10cSrcweir DWORD m_threadIdWindow; 81cdf0e10cSrcweir // This is the thread id of the OLE thread that is created in DropTarget::initialize 82cdf0e10cSrcweir // when the calling thread is an MTA 83cdf0e10cSrcweir DWORD m_threadIdTarget; 84cdf0e10cSrcweir // The handle of the thread that is created in DropTarget::initialize 85cdf0e10cSrcweir // when the calling thread is an MTA 86cdf0e10cSrcweir HANDLE m_hOleThread; 87*99e632bcSmseidel // The thread id of the thread which called initialize. When the service dies 88*99e632bcSmseidel // than m_oleThreadId is used to determine if the service successfully called 89*99e632bcSmseidel // OleInitialize. If so then OleUninitialize has to be called. 90*99e632bcSmseidel DWORD m_oleThreadId; 91*99e632bcSmseidel // An Instance of IDropTargetImpl which receives calls from the system's drag 92*99e632bcSmseidel // and drop implementation. It delegate the calls to name alike functions in 93*99e632bcSmseidel // this class. 94*99e632bcSmseidel IDropTarget* m_pDropTarget; 95cdf0e10cSrcweir 96cdf0e10cSrcweir Reference<XMultiServiceFactory> m_serviceFactory; 97cdf0e10cSrcweir // If m_bActive == sal_True then events are fired to XDropTargetListener s, 98*99e632bcSmseidel // none otherwise. The default value is sal_True. 99*99e632bcSmseidel sal_Bool m_bActive; 100cdf0e10cSrcweir sal_Int8 m_nDefaultActions; 101cdf0e10cSrcweir 102cdf0e10cSrcweir // This value is set when a XDropTargetListener calls accept or reject on 103*99e632bcSmseidel // the XDropTargetDropContext or XDropTargetDragContext. 104cdf0e10cSrcweir // The values are from the DNDConstants group. 105cdf0e10cSrcweir sal_Int8 m_nCurrentDropAction; 106cdf0e10cSrcweir // This value is manipulated by the XDropTargetListener 107cdf0e10cSrcweir sal_Int8 m_nLastDropAction; 108cdf0e10cSrcweir 109cdf0e10cSrcweir Reference<XTransferable> m_currentData; 110cdf0e10cSrcweir // The current action is used to determine if the USER 111cdf0e10cSrcweir // action has changed (dropActionChanged) 112cdf0e10cSrcweir // sal_Int8 m_userAction; 113cdf0e10cSrcweir // Set by listeners when they call XDropTargetDropContext::dropComplete 114cdf0e10cSrcweir sal_Bool m_bDropComplete; 115cdf0e10cSrcweir // converts IDataObject objects to XTransferable objects. 116*99e632bcSmseidel CDTransObjFactory m_aDataConverter; 117cdf0e10cSrcweir Reference<XDropTargetDragContext> m_currentDragContext; 118cdf0e10cSrcweir Reference<XDropTargetDropContext> m_currentDropContext; 119cdf0e10cSrcweir 120cdf0e10cSrcweir 121cdf0e10cSrcweir private: 122cdf0e10cSrcweir DropTarget(); 123cdf0e10cSrcweir DropTarget(DropTarget&); 124cdf0e10cSrcweir DropTarget &operator= (DropTarget&); 125cdf0e10cSrcweir 126cdf0e10cSrcweir public: 127cdf0e10cSrcweir DropTarget(const Reference<XMultiServiceFactory>& sf); 128cdf0e10cSrcweir virtual ~DropTarget(); 129cdf0e10cSrcweir 130*99e632bcSmseidel // Overrides WeakComponentImplHelper::disposing which is called by 131*99e632bcSmseidel // WeakComponentImplHelper::dispose 132*99e632bcSmseidel // Must be called. 133*99e632bcSmseidel virtual void SAL_CALL disposing(); 134*99e632bcSmseidel // XInitialization 135*99e632bcSmseidel virtual void SAL_CALL initialize( const Sequence< Any >& aArguments ) 136cdf0e10cSrcweir throw(Exception, RuntimeException); 137cdf0e10cSrcweir 138cdf0e10cSrcweir // XDropTarget 139*99e632bcSmseidel virtual void SAL_CALL addDropTargetListener( const Reference< XDropTargetListener >& dtl ) 140cdf0e10cSrcweir throw(RuntimeException); 141*99e632bcSmseidel virtual void SAL_CALL removeDropTargetListener( const Reference< XDropTargetListener >& dtl ) 142cdf0e10cSrcweir throw(RuntimeException); 143cdf0e10cSrcweir // Default is not active 144*99e632bcSmseidel virtual sal_Bool SAL_CALL isActive( ) throw(RuntimeException); 145*99e632bcSmseidel virtual void SAL_CALL setActive( sal_Bool isActive ) throw(RuntimeException); 146*99e632bcSmseidel virtual sal_Int8 SAL_CALL getDefaultActions( ) throw(RuntimeException); 147*99e632bcSmseidel virtual void SAL_CALL setDefaultActions( sal_Int8 actions ) throw(RuntimeException); 148cdf0e10cSrcweir 149*99e632bcSmseidel // XServiceInfo 150*99e632bcSmseidel virtual OUString SAL_CALL getImplementationName( ) throw (RuntimeException); 151*99e632bcSmseidel virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) throw (RuntimeException); 152*99e632bcSmseidel virtual Sequence< OUString > SAL_CALL getSupportedServiceNames( ) throw (RuntimeException); 153cdf0e10cSrcweir 154cdf0e10cSrcweir 155cdf0e10cSrcweir // Functions called from the IDropTarget implementation ( m_pDropTarget) 156cdf0e10cSrcweir virtual HRESULT DragEnter( 157*99e632bcSmseidel /* [unique][in] */ IDataObject *pDataObj, 158*99e632bcSmseidel /* [in] */ DWORD grfKeyState, 159*99e632bcSmseidel /* [in] */ POINTL pt, 160*99e632bcSmseidel /* [out][in] */ DWORD *pdwEffect); 161cdf0e10cSrcweir 162cdf0e10cSrcweir virtual HRESULT STDMETHODCALLTYPE DragOver( 163*99e632bcSmseidel /* [in] */ DWORD grfKeyState, 164*99e632bcSmseidel /* [in] */ POINTL pt, 165*99e632bcSmseidel /* [out][in] */ DWORD *pdwEffect); 166cdf0e10cSrcweir 167cdf0e10cSrcweir virtual HRESULT STDMETHODCALLTYPE DragLeave( ) ; 168cdf0e10cSrcweir 169*99e632bcSmseidel virtual HRESULT STDMETHODCALLTYPE Drop( 170*99e632bcSmseidel /* [unique][in] */ IDataObject *pDataObj, 171*99e632bcSmseidel /* [in] */ DWORD grfKeyState, 172*99e632bcSmseidel /* [in] */ POINTL pt, 173*99e632bcSmseidel /* [out][in] */ DWORD *pdwEffect); 174cdf0e10cSrcweir 175cdf0e10cSrcweir 176cdf0e10cSrcweir // Non - interface functions -------------------------------------------------- 177cdf0e10cSrcweir // XDropTargetDropContext delegated from DropContext 178cdf0e10cSrcweir 179cdf0e10cSrcweir void _acceptDrop( sal_Int8 dropOperation, const Reference<XDropTargetDropContext>& context); 180cdf0e10cSrcweir void _rejectDrop( const Reference<XDropTargetDropContext>& context); 181cdf0e10cSrcweir void _dropComplete( sal_Bool success, const Reference<XDropTargetDropContext>& context); 182cdf0e10cSrcweir 183cdf0e10cSrcweir // XDropTargetDragContext delegated from DragContext 184cdf0e10cSrcweir void _acceptDrag( sal_Int8 dragOperation, const Reference<XDropTargetDragContext>& context); 185cdf0e10cSrcweir void _rejectDrag( const Reference<XDropTargetDragContext>& context); 186cdf0e10cSrcweir 187cdf0e10cSrcweir 188cdf0e10cSrcweir protected: 189*99e632bcSmseidel // Gets the current action dependent on the pressed modifiers, the effects 190cdf0e10cSrcweir // supported by the drop source (IDropSource) and the default actions of the 191cdf0e10cSrcweir // drop target (XDropTarget, this class)) 192cdf0e10cSrcweir inline sal_Int8 getFilteredActions( DWORD grfKeyState, DWORD sourceActions); 193cdf0e10cSrcweir // Only filters with the default actions 194cdf0e10cSrcweir inline sal_Int8 getFilteredActions( DWORD grfKeyState); 195cdf0e10cSrcweir 196cdf0e10cSrcweir 197cdf0e10cSrcweir 198cdf0e10cSrcweir void fire_drop( const DropTargetDropEvent& dte); 199cdf0e10cSrcweir void fire_dragEnter( const DropTargetDragEnterEvent& dtde ); 200cdf0e10cSrcweir void fire_dragExit( const DropTargetEvent& dte ); 201cdf0e10cSrcweir void fire_dragOver( const DropTargetDragEvent& dtde ); 202cdf0e10cSrcweir void fire_dropActionChanged( const DropTargetDragEvent& dtde ); 203cdf0e10cSrcweir 204cdf0e10cSrcweir 205cdf0e10cSrcweir 206cdf0e10cSrcweir 207cdf0e10cSrcweir }; 208cdf0e10cSrcweir 209cdf0e10cSrcweir 210cdf0e10cSrcweir #endif 211