1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <com/sun/star/uno/Reference.h>
#include <com/sun/star/lang/XComponent.hpp>
#include <com/sun/star/lang/XInitialization.hpp>
#include <com/sun/star/datatransfer/dnd/XDropTarget.hpp>
#include <com/sun/star/datatransfer/dnd/DNDConstants.hpp>
#include <cppuhelper/servicefactory.hxx>
#include <rtl/string.h>
#include "atlwindow.hxx"
#include "targetlistener.hxx"
#include "sourcelistener.hxx"
#include <map>
#include <winbase.h>
using namespace com::sun::star::lang;
using namespace com::sun::star::datatransfer::dnd;
using namespace com::sun::star::datatransfer::dnd::DNDConstants;
using namespace cppu;
using namespace std;
LRESULT APIENTRY EditSubclassProc( HWND hwnd, UINT uMsg,WPARAM wParam, LPARAM lParam) ;
extern Reference< XMultiServiceFactory > MultiServiceFactory;
DWORD WINAPI MTAFunc(LPVOID pParams);
char* szSTAWin= "XDragSource::executeDrag is called from the same "
"OLE STA thread that created the window.";
char* szMTAWin= "XDragSource::executeDrag is called from a MTA thread "
"that did not create the window.";
WNDPROC wpOrigEditProc;
map<HWND, HWND> mapEditToMainWnd;
LRESULT AWindow::OnClose(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
Reference<XComponent> xcompSource( m_xDragSource, UNO_QUERY);
PostQuitMessage(0);
m_xDropTarget=0;
m_xDragSource=0;
// Remove the subclass from the edit control.
::SetWindowLong(m_hwndEdit, GWL_WNDPROC,
(LONG) wpOrigEditProc);
return 0;
}
LRESULT AWindow::OnCreate(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
// Prepare the EDIT control
m_hwndEdit = CreateWindowA(
"EDIT", // predefined class
NULL, // no window title
WS_CHILD | WS_VISIBLE | WS_VSCROLL |
ES_LEFT | ES_MULTILINE | ES_AUTOVSCROLL,
0, 0, 0, 0, // set size in WM_SIZE message
m_hWnd, // parent window
(HMENU) NULL, // edit control ID
(HINSTANCE) GetWindowLong( GWL_HINSTANCE),
NULL);
// the map is used in the window procedure for the edit window to associate the
// it to the right main window ( AWindow)
mapEditToMainWnd[m_hwndEdit]= m_hWnd;
// Superclass the edit window, because we want to process mouse messages
wpOrigEditProc = (WNDPROC) ::SetWindowLongA(m_hwndEdit,
GWL_WNDPROC, (LONG) EditSubclassProc);
// Add text to the window.
if( m_isMTA)
::SendMessageA(m_hwndEdit, WM_SETTEXT, 0, (LPARAM) szMTAWin);
else
::SendMessageA(m_hwndEdit, WM_SETTEXT, 0, (LPARAM) szSTAWin);
// create the DragSource
Reference< XInterface> xint= MultiServiceFactory->createInstance("com.sun.star.datatransfer.dnd.OleDragSource");
m_xDragSource= Reference<XDragSource>( xint, UNO_QUERY);
Reference<XInitialization> xInit( xint, UNO_QUERY);
Any ar[2];
ar[1]<<= (sal_uInt32)m_hWnd;
xInit->initialize( Sequence<Any>( ar, 2) );
//create the DropTarget
Reference< XInterface> xintTarget= MultiServiceFactory->createInstance("com.sun.star.datatransfer.dnd.OleDropTarget");
m_xDropTarget= Reference<XDropTarget>( xintTarget, UNO_QUERY);
Reference<XInitialization> xInitTarget( xintTarget, UNO_QUERY);
Any any;
any <<= (sal_uInt32)m_hWnd;
xInitTarget->initialize( Sequence<Any>( &any, 1) );
m_xDropTarget->addDropTargetListener( static_cast<XDropTargetListener*>
( new DropTargetListener( m_hwndEdit)) );
// // make this window tho a drop target
m_xDropTarget->setActive(sal_True);
return 0;
}
// When the mouse is dragged for a second than a drag is initiated
LRESULT AWindow::OnMouseAction(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
if( uMsg== WM_LBUTTONDOWN)
{
SetTimer( 1, 1000);
}
else if( uMsg == WM_LBUTTONUP)
{
KillTimer( 1);
}
return 0;
}
LRESULT AWindow::OnTimer(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
USES_CONVERSION;
KillTimer( 1);
if(m_xDragSource.is())
{
//Get the Text out of the Edit window
int length= (int)::SendMessageA( m_hwndEdit, WM_GETTEXTLENGTH, 0, 0);
char * pBuffer= new char[length + 1];
ZeroMemory( pBuffer, length + 1);
::SendMessageA( m_hwndEdit, WM_GETTEXT, length, (LPARAM) pBuffer);
IDataObject* pData= NULL;
HRESULT hr= CreateDataCache( NULL, CLSID_NULL, __uuidof(IDataObject),(void**) &pData);
if( pData)
{
FORMATETC format={ CF_TEXT, NULL, DVASPECT_CONTENT, -1, };
HGLOBAL mem= GlobalAlloc(GHND, length + 1 );
void* pMem= GlobalLock( mem);
memcpy( pMem, pBuffer, length+1);
GlobalUnlock( mem);
STGMEDIUM medium;
medium.tymed= TYMED_HGLOBAL;
medium.hGlobal= mem;
medium.pUnkForRelease= NULL;
pData->SetData( &format, &medium, TRUE); // releases HGLOBAL eventually
Reference<XTransferable> xTrans= m_aDataConverter.createTransferableFromDataObj(
MultiServiceFactory, pData);
// call XDragSource::executeDrag from an MTA
if( m_isMTA )
{
DWORD mtaThreadId;
ThreadData data;
data.source= m_xDragSource;
data.transferable= xTrans;
data.evtThreadReady= CreateEvent( NULL, FALSE, FALSE, NULL);
HANDLE hThread= CreateThread( NULL, 0, MTAFunc, &data, 0, &mtaThreadId);
// We must wait until the thread copied the ThreadData structure
WaitForSingleObject( data.evtThreadReady, INFINITE);
CloseHandle( data.evtThreadReady);
}
else
{
m_xDragSource->startDrag( DragGestureEvent(),
ACTION_LINK|ACTION_MOVE|ACTION_COPY,
0,
0,
xTrans,
Reference<XDragSourceListener>( static_cast<XDragSourceListener*>(new DragSourceListener() ) ) );
}
}
delete[] pBuffer;
}
return 0;
}
LRESULT AWindow::OnSize(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
// Make the edit control the size of the window's
// client area.
::MoveWindow(m_hwndEdit,
0, 0, // starting x- and y-coordinates
LOWORD(lParam), // width of client area
HIWORD(lParam), // height of client area
TRUE); // repaint window
return 0;
}
LRESULT AWindow::OnFocus(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
::SetFocus(m_hwndEdit);
return 0;
}
// Subclass procedure for EDIT window
LRESULT APIENTRY EditSubclassProc( HWND hwnd, UINT uMsg,WPARAM wParam, LPARAM lParam)
{
if( uMsg >= WM_MOUSEFIRST && uMsg <= WM_MOUSELAST)
{
HWND hAWindow= mapEditToMainWnd[hwnd];
::SendMessage( hAWindow, uMsg, wParam, lParam);
}
return CallWindowProc( wpOrigEditProc, hwnd, uMsg,
wParam, lParam);
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
