LLWindow V3 partial merge. Includes Most everything sans new LLMouseHandler which requires some messy changes in llviewerwindow that are best left for a dedicated commit. Also, some translation fluff was skipped for now.
This commit is contained in:
Shyotl
365
indra/llwindow/lldragdropwin32.cpp
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365
indra/llwindow/lldragdropwin32.cpp
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/**
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* @file lldragdrop32.cpp
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* @brief Handler for Windows specific drag and drop (OS to client) code
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*
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* $LicenseInfo:firstyear=2001&license=viewerlgpl$
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* Second Life Viewer Source Code
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* Copyright (C) 2010, Linden Research, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License only.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
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* $/LicenseInfo$
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*/
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#if LL_WINDOWS
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#if LL_OS_DRAGDROP_ENABLED
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#include "linden_common.h"
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#include "llwindowwin32.h"
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#include "llkeyboardwin32.h"
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#include "llwindowcallbacks.h"
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#include "lldragdropwin32.h"
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class LLDragDropWin32Target:
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public IDropTarget
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{
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public:
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////////////////////////////////////////////////////////////////////////////////
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//
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LLDragDropWin32Target( HWND hWnd ) :
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mRefCount( 1 ),
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mAppWindowHandle( hWnd ),
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mAllowDrop(false),
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mIsSlurl(false)
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{
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};
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virtual ~LLDragDropWin32Target()
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{
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};
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////////////////////////////////////////////////////////////////////////////////
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//
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ULONG __stdcall AddRef( void )
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{
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return InterlockedIncrement( &mRefCount );
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};
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////////////////////////////////////////////////////////////////////////////////
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//
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ULONG __stdcall Release( void )
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{
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LONG count = InterlockedDecrement( &mRefCount );
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if ( count == 0 )
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{
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delete this;
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return 0;
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}
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else
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{
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return count;
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};
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};
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////////////////////////////////////////////////////////////////////////////////
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//
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HRESULT __stdcall QueryInterface( REFIID iid, void** ppvObject )
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{
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if ( iid == IID_IUnknown || iid == IID_IDropTarget )
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{
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AddRef();
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*ppvObject = this;
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return S_OK;
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}
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else
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{
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*ppvObject = 0;
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return E_NOINTERFACE;
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};
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};
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////////////////////////////////////////////////////////////////////////////////
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//
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HRESULT __stdcall DragEnter( IDataObject* pDataObject, DWORD grfKeyState, POINTL pt, DWORD* pdwEffect )
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{
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FORMATETC fmtetc = { CF_TEXT, 0, DVASPECT_CONTENT, -1, TYMED_HGLOBAL };
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// support CF_TEXT using a HGLOBAL?
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if ( S_OK == pDataObject->QueryGetData( &fmtetc ) )
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{
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mAllowDrop = true;
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mDropUrl = std::string();
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mIsSlurl = false;
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STGMEDIUM stgmed;
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if( S_OK == pDataObject->GetData( &fmtetc, &stgmed ) )
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{
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PVOID data = GlobalLock( stgmed.hGlobal );
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mDropUrl = std::string( (char*)data );
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// XXX MAJOR MAJOR HACK!
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LLWindowWin32 *window_imp = (LLWindowWin32 *)GetWindowLong(mAppWindowHandle, GWL_USERDATA);
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if (NULL != window_imp)
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{
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LLCoordGL gl_coord( 0, 0 );
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POINT pt2;
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pt2.x = pt.x;
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pt2.y = pt.y;
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ScreenToClient( mAppWindowHandle, &pt2 );
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LLCoordWindow cursor_coord_window( pt2.x, pt2.y );
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window_imp->convertCoords(cursor_coord_window, &gl_coord);
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MASK mask = gKeyboard->currentMask(TRUE);
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LLWindowCallbacks::DragNDropResult result = window_imp->completeDragNDropRequest( gl_coord, mask,
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LLWindowCallbacks::DNDA_START_TRACKING, mDropUrl );
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switch (result)
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{
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case LLWindowCallbacks::DND_COPY:
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*pdwEffect = DROPEFFECT_COPY;
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break;
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case LLWindowCallbacks::DND_LINK:
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*pdwEffect = DROPEFFECT_LINK;
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break;
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case LLWindowCallbacks::DND_MOVE:
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*pdwEffect = DROPEFFECT_MOVE;
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break;
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case LLWindowCallbacks::DND_NONE:
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default:
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*pdwEffect = DROPEFFECT_NONE;
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break;
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}
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};
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GlobalUnlock( stgmed.hGlobal );
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ReleaseStgMedium( &stgmed );
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};
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SetFocus( mAppWindowHandle );
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}
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else
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{
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mAllowDrop = false;
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*pdwEffect = DROPEFFECT_NONE;
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};
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return S_OK;
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};
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////////////////////////////////////////////////////////////////////////////////
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//
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HRESULT __stdcall DragOver( DWORD grfKeyState, POINTL pt, DWORD* pdwEffect )
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{
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if ( mAllowDrop )
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{
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// XXX MAJOR MAJOR HACK!
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LLWindowWin32 *window_imp = (LLWindowWin32 *)GetWindowLong(mAppWindowHandle, GWL_USERDATA);
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if (NULL != window_imp)
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{
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LLCoordGL gl_coord( 0, 0 );
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POINT pt2;
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pt2.x = pt.x;
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pt2.y = pt.y;
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ScreenToClient( mAppWindowHandle, &pt2 );
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LLCoordWindow cursor_coord_window( pt2.x, pt2.y );
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window_imp->convertCoords(cursor_coord_window, &gl_coord);
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MASK mask = gKeyboard->currentMask(TRUE);
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LLWindowCallbacks::DragNDropResult result = window_imp->completeDragNDropRequest( gl_coord, mask,
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LLWindowCallbacks::DNDA_TRACK, mDropUrl );
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switch (result)
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{
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case LLWindowCallbacks::DND_COPY:
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*pdwEffect = DROPEFFECT_COPY;
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break;
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case LLWindowCallbacks::DND_LINK:
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*pdwEffect = DROPEFFECT_LINK;
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break;
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case LLWindowCallbacks::DND_MOVE:
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*pdwEffect = DROPEFFECT_MOVE;
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break;
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case LLWindowCallbacks::DND_NONE:
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default:
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*pdwEffect = DROPEFFECT_NONE;
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break;
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}
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};
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}
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else
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{
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*pdwEffect = DROPEFFECT_NONE;
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};
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return S_OK;
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};
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////////////////////////////////////////////////////////////////////////////////
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//
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HRESULT __stdcall DragLeave( void )
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{
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// XXX MAJOR MAJOR HACK!
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LLWindowWin32 *window_imp = (LLWindowWin32 *)GetWindowLong(mAppWindowHandle, GWL_USERDATA);
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if (NULL != window_imp)
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{
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LLCoordGL gl_coord( 0, 0 );
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MASK mask = gKeyboard->currentMask(TRUE);
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window_imp->completeDragNDropRequest( gl_coord, mask, LLWindowCallbacks::DNDA_STOP_TRACKING, mDropUrl );
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};
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return S_OK;
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};
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////////////////////////////////////////////////////////////////////////////////
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//
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HRESULT __stdcall Drop( IDataObject* pDataObject, DWORD grfKeyState, POINTL pt, DWORD* pdwEffect )
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{
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if ( mAllowDrop )
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{
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// window impl stored in Window data (neat!)
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LLWindowWin32 *window_imp = (LLWindowWin32 *)GetWindowLong( mAppWindowHandle, GWL_USERDATA );
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if ( NULL != window_imp )
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{
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LLCoordGL gl_coord( 0, 0 );
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POINT pt_client;
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pt_client.x = pt.x;
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pt_client.y = pt.y;
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ScreenToClient( mAppWindowHandle, &pt_client );
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LLCoordWindow cursor_coord_window( pt_client.x, pt_client.y );
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window_imp->convertCoords(cursor_coord_window, &gl_coord);
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llinfos << "### (Drop) URL is: " << mDropUrl << llendl;
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llinfos << "### raw coords are: " << pt.x << " x " << pt.y << llendl;
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llinfos << "### client coords are: " << pt_client.x << " x " << pt_client.y << llendl;
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llinfos << "### GL coords are: " << gl_coord.mX << " x " << gl_coord.mY << llendl;
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llinfos << llendl;
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// no keyboard modifier option yet but we could one day
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MASK mask = gKeyboard->currentMask( TRUE );
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// actually do the drop
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LLWindowCallbacks::DragNDropResult result = window_imp->completeDragNDropRequest( gl_coord, mask,
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LLWindowCallbacks::DNDA_DROPPED, mDropUrl );
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switch (result)
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{
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case LLWindowCallbacks::DND_COPY:
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*pdwEffect = DROPEFFECT_COPY;
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break;
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case LLWindowCallbacks::DND_LINK:
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*pdwEffect = DROPEFFECT_LINK;
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break;
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case LLWindowCallbacks::DND_MOVE:
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*pdwEffect = DROPEFFECT_MOVE;
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break;
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case LLWindowCallbacks::DND_NONE:
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default:
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*pdwEffect = DROPEFFECT_NONE;
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break;
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}
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};
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}
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else
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{
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*pdwEffect = DROPEFFECT_NONE;
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};
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return S_OK;
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};
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////////////////////////////////////////////////////////////////////////////////
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//
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private:
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LONG mRefCount;
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HWND mAppWindowHandle;
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bool mAllowDrop;
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std::string mDropUrl;
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bool mIsSlurl;
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friend class LLWindowWin32;
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};
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////////////////////////////////////////////////////////////////////////////////
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//
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LLDragDropWin32::LLDragDropWin32() :
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mDropTarget( NULL ),
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mDropWindowHandle( NULL )
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{
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}
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////////////////////////////////////////////////////////////////////////////////
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//
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LLDragDropWin32::~LLDragDropWin32()
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{
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}
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////////////////////////////////////////////////////////////////////////////////
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//
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bool LLDragDropWin32::init( HWND hWnd )
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{
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if ( NOERROR != OleInitialize( NULL ) )
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return FALSE;
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mDropTarget = new LLDragDropWin32Target( hWnd );
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if ( mDropTarget )
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{
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HRESULT result = CoLockObjectExternal( mDropTarget, TRUE, FALSE );
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if ( S_OK == result )
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{
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result = RegisterDragDrop( hWnd, mDropTarget );
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if ( S_OK != result )
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{
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// RegisterDragDrop failed
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return false;
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};
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// all ok
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mDropWindowHandle = hWnd;
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}
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else
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{
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// Unable to lock OLE object
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return false;
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};
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};
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// success
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return true;
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}
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////////////////////////////////////////////////////////////////////////////////
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//
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void LLDragDropWin32::reset()
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{
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if ( mDropTarget )
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{
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RevokeDragDrop( mDropWindowHandle );
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CoLockObjectExternal( mDropTarget, FALSE, TRUE );
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mDropTarget->Release();
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};
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OleUninitialize();
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}
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#endif // LL_OS_DRAGDROP_ENABLED
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#endif // LL_WINDOWS
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