dtrans/test/win32/dnd/atlwindow.cxx

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  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_dtrans.hxx"
  33
  34 #include <com/sun/star/uno/Reference.h>
  35 #include <com/sun/star/lang/XComponent.hpp>
  36 #include <com/sun/star/lang/XInitialization.hpp>
  37 #include <com/sun/star/datatransfer/dnd/XDropTarget.hpp>
  38 #include <com/sun/star/datatransfer/dnd/DNDConstants.hpp>
  39
  40 #include <cppuhelper/servicefactory.hxx>
  41 #include <rtl/string.h>
  42
  43 #include "atlwindow.hxx"
  44 #include "targetlistener.hxx"
  45 #include "sourcelistener.hxx"
  46 //#include "transferable.hxx"
  47 #include <map>
  48
  49 #include <winbase.h>
  50 using namespace com::sun::star::lang;
  51 using namespace com::sun::star::datatransfer::dnd;
  52 using namespace com::sun::star::datatransfer::dnd::DNDConstants;
  53 using namespace cppu;
  54 using namespace rtl;
  55 using namespace std;
  56
  57 LRESULT APIENTRY EditSubclassProc( HWND hwnd, UINT uMsg,WPARAM wParam, LPARAM lParam) ;
  58
  59
  60 extern Reference< XMultiServiceFactory > MultiServiceFactory;
  61 DWORD WINAPI MTAFunc(LPVOID pParams);
  62
  63 char* szSTAWin= "XDragSource::executeDrag is called from the same "
  64                 "OLE STA thread that created the window.";
  65 char* szMTAWin= "XDragSource::executeDrag is called from a MTA thread "
  66                 "that did not create the window.";
  67
  68 WNDPROC wpOrigEditProc;
  69
  70 map<HWND, HWND> mapEditToMainWnd;
  71
  72 LRESULT AWindow::OnClose(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
  73 {
  74     Reference<XComponent> xcompSource( m_xDragSource, UNO_QUERY);
  75
  76     PostQuitMessage(0);
  77
  78
  79     m_xDropTarget=0;
  80     m_xDragSource=0;
  81
  82
  83      // Remove the subclass from the edit control.
  84     ::SetWindowLong(m_hwndEdit, GWL_WNDPROC,
  85                 (LONG) wpOrigEditProc);
  86
  87     return 0;
  88 }
  89
  90
  91 LRESULT AWindow::OnCreate(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
  92 {
  93     // Prepare the EDIT control
  94     m_hwndEdit = CreateWindowA(
  95         "EDIT",     // predefined class
  96         NULL,       // no window title
  97         WS_CHILD | WS_VISIBLE | WS_VSCROLL |
  98             ES_LEFT | ES_MULTILINE | ES_AUTOVSCROLL,
  99         0, 0, 0, 0, // set size in WM_SIZE message
 100         m_hWnd,       // parent window
 101         (HMENU) NULL, // edit control ID
 102         (HINSTANCE) GetWindowLong( GWL_HINSTANCE),
 103         NULL);
 104
 105     // the map is used in the window procedure for the edit window to associate the
 106     // it to the right main window ( AWindow)
 107     mapEditToMainWnd[m_hwndEdit]= m_hWnd;
 108     // Superclass the edit window, because we want to process mouse messages
 109     wpOrigEditProc = (WNDPROC) ::SetWindowLongA(m_hwndEdit,
 110                 GWL_WNDPROC, (LONG) EditSubclassProc);
 111
 112
 113     // Add text to the window.
 114     if( m_isMTA)
 115         ::SendMessageA(m_hwndEdit, WM_SETTEXT, 0, (LPARAM) szMTAWin);
 116     else
 117         ::SendMessageA(m_hwndEdit, WM_SETTEXT, 0, (LPARAM) szSTAWin);
 118
 119
 120     // create the DragSource
 121     Reference< XInterface> xint= MultiServiceFactory->createInstance(OUString(L"com.sun.star.datatransfer.dnd.OleDragSource"));
 122     m_xDragSource= Reference<XDragSource>( xint, UNO_QUERY);
 123     Reference<XInitialization> xInit( xint, UNO_QUERY);
 124
 125     Any ar[2];
 126     ar[1]<<= (sal_uInt32)m_hWnd;
 127     xInit->initialize( Sequence<Any>( ar, 2) );
 128
 129     //create the DropTarget
 130     Reference< XInterface> xintTarget= MultiServiceFactory->createInstance(OUString(L"com.sun.star.datatransfer.dnd.OleDropTarget"));
 131     m_xDropTarget= Reference<XDropTarget>( xintTarget, UNO_QUERY);
 132     Reference<XInitialization> xInitTarget( xintTarget, UNO_QUERY);
 133
 134     Any any;
 135     any <<= (sal_uInt32)m_hWnd;
 136     xInitTarget->initialize( Sequence<Any>( &any, 1) );
 137
 138
 139     m_xDropTarget->addDropTargetListener( static_cast<XDropTargetListener*>
 140         ( new DropTargetListener( m_hwndEdit)) );
 141 //      // make this window tho a drop target
 142     m_xDropTarget->setActive(sal_True);
 143
 144     return 0;
 145 }
 146
 147 // When the mouse is dragged for a second than a drag is initiated
 148 LRESULT AWindow::OnMouseAction(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
 149 {
 150     if( uMsg== WM_LBUTTONDOWN)
 151     {
 152         SetTimer( 1, 1000);
 153     }
 154
 155     else if( uMsg == WM_LBUTTONUP)
 156     {
 157         KillTimer(  1);
 158     }
 159
 160     return 0;
 161 }
 162
 163 LRESULT AWindow::OnTimer(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
 164 {
 165     HRESULT hr;
 166     USES_CONVERSION;
 167     KillTimer( 1);
 168     if(m_xDragSource.is())
 169     {
 170
 171         //Get the Text out of the Edit window
 172         int length= (int)::SendMessageA( m_hwndEdit, WM_GETTEXTLENGTH, 0, 0);
 173         char * pBuffer= new char[length + 1];
 174         ZeroMemory( pBuffer, length + 1);
 175         ::SendMessageA( m_hwndEdit, WM_GETTEXT, length, (LPARAM) pBuffer);
 176
 177         IDataObject* pData= NULL;
 178         HRESULT hr= CreateDataCache( NULL, CLSID_NULL, __uuidof(IDataObject),(void**) &pData);
 179         if( pData)
 180         {
 181             FORMATETC format={ CF_TEXT, NULL, DVASPECT_CONTENT, -1, };
 182
 183             HGLOBAL mem= GlobalAlloc(GHND, length + 1 );
 184             void* pMem= GlobalLock( mem);
 185             memcpy( pMem, pBuffer, length+1);
 186             GlobalUnlock( mem);
 187
 188             STGMEDIUM medium;
 189             medium.tymed= TYMED_HGLOBAL;
 190             medium.hGlobal= mem;
 191             medium.pUnkForRelease= NULL;
 192
 193             pData->SetData( &format,  &medium, TRUE); // releases HGLOBAL eventually
 194
 195             Reference<XTransferable> xTrans= m_aDataConverter.createTransferableFromDataObj(
 196                                                 MultiServiceFactory, pData);
 197
 198             // call XDragSource::executeDrag from an MTA
 199             if( m_isMTA )
 200             {
 201                 DWORD mtaThreadId;
 202                 ThreadData data;
 203                 data.source= m_xDragSource;
 204                 data.transferable= xTrans;
 205
 206                 data.evtThreadReady= CreateEvent( NULL, FALSE, FALSE, NULL);
 207
 208                 HANDLE hThread= CreateThread( NULL, 0, MTAFunc, &data, 0, &mtaThreadId);
 209                 // We must wait until the thread copied the ThreadData structure
 210                 WaitForSingleObject( data.evtThreadReady, INFINITE);
 211                 CloseHandle( data.evtThreadReady);
 212
 213
 214             }
 215             else
 216             {
 217                 m_xDragSource->startDrag( DragGestureEvent(),
 218                     ACTION_LINK|ACTION_MOVE|ACTION_COPY,
 219                     0,
 220                     0,
 221                     xTrans,
 222                     Reference<XDragSourceListener>( static_cast<XDragSourceListener*>(new DragSourceListener() ) ) );
 223             }
 224         }
 225
 226         delete[] pBuffer;
 227     }
 228
 229     return 0;
 230 }
 231
 232 LRESULT AWindow::OnSize(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
 233 {
 234     // Make the edit control the size of the window's
 235     // client area.
 236     ::MoveWindow(m_hwndEdit,
 237         0, 0,           // starting x- and y-coordinates
 238         LOWORD(lParam), // width of client area
 239         HIWORD(lParam), // height of client area
 240         TRUE);          // repaint window
 241
 242     return 0;
 243 }
 244 LRESULT AWindow::OnFocus(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
 245 {
 246     ::SetFocus(m_hwndEdit);
 247     return 0;
 248 }
 249
 250
 251
 252 // Subclass procedure for EDIT window
 253 LRESULT APIENTRY EditSubclassProc( HWND hwnd, UINT uMsg,WPARAM wParam, LPARAM lParam)
 254 {
 255
 256     if( uMsg >= WM_MOUSEFIRST && uMsg <= WM_MOUSELAST)
 257     {
 258         HWND hAWindow= mapEditToMainWnd[hwnd];
 259         ::SendMessage( hAWindow, uMsg, wParam, lParam);
 260
 261     }
 262     return CallWindowProc( wpOrigEditProc, hwnd, uMsg,
 263         wParam, lParam);
 264 }
 265