1 /*****************************************************************************
2 * x11_dragdrop.cpp: X11 implementation of the drag & drop
3 *****************************************************************************
4 * Copyright (C) 2003 VideoLAN
5 * $Id: x11_dragdrop.cpp,v 1.7 2003/10/22 19:12:56 ipkiss Exp $
7 * Authors: Cyril Deguet <asmax@videolan.org>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111,
23 *****************************************************************************/
27 //--- X11 -------------------------------------------------------------------
29 #include <X11/Xatom.h>
31 //--- VLC -------------------------------------------------------------------
34 //--- SKIN ------------------------------------------------------------------
35 #include "../src/skin_common.h"
36 #include "../src/event.h"
37 #include "../os_api.h"
38 #include "../src/theme.h"
39 #include "../os_theme.h"
40 #include "x11_dragdrop.h"
45 //---------------------------------------------------------------------------
46 X11DropObject::X11DropObject( intf_thread_t *_p_intf, Window win,
51 PlayOnDrop = playondrop;
52 display = p_intf->p_sys->display;
54 //---------------------------------------------------------------------------
55 X11DropObject::~X11DropObject()
58 //---------------------------------------------------------------------------
59 void X11DropObject::DndEnter( ldata_t data )
63 // Retrieve available data types
64 list<string> dataTypes;
65 if( data[1] & 1 ) // more than 3 data types ?
69 unsigned long nitems, nbytes;
72 Atom typeListAtom = XInternAtom( display, "XdndTypeList", 0 );
73 XGetWindowProperty( display, src, typeListAtom, 0, 65536, False,
74 XA_ATOM, &type, &format, &nitems, &nbytes,
75 (unsigned char**)&dataList );
77 for( unsigned long i=0; i<nitems; i++ )
80 string dataType = XGetAtomName( display, dataList[i] );
82 dataTypes.push_back( dataType );
84 XFree( (void*)dataList );
88 for( int i=2; i<5; i++ )
93 string dataType = XGetAtomName( display, data[i] );
95 dataTypes.push_back( dataType );
100 // Find the right target
102 list<string>::iterator it;
103 for( it = dataTypes.begin(); it != dataTypes.end(); it++ )
105 if( *it == "text/plain" || *it == "STRING" )
108 target = XInternAtom( display, (*it).c_str(), 0 );
114 //---------------------------------------------------------------------------
115 void X11DropObject::DndPosition( ldata_t data )
117 Window src = data[0];
121 Atom selectionAtom = XInternAtom( display, "XdndSelection", 0 );
122 Atom targetAtom = XInternAtom( display, "text/plain", 0 );
123 Atom propAtom = XInternAtom( display, "VLC_SELECTION", 0 );
125 Atom actionAtom = XInternAtom( display, "XdndActionCopy", 0 );
126 Atom typeAtom = XInternAtom( display, "XdndFinished", 0 );
128 // Convert the selection into the given target
129 // NEEDED or it doesn't work !!!
130 XConvertSelection( display, selectionAtom, targetAtom, propAtom, src,
133 actionAtom = XInternAtom( display, "XdndActionCopy", 0 );
134 typeAtom = XInternAtom( display, "XdndStatus", 0 );
137 event.type = ClientMessage;
138 event.xclient.window = src;
139 event.xclient.display = display;
140 event.xclient.message_type = typeAtom;
141 event.xclient.format = 32;
142 event.xclient.data.l[0] = Win;
145 event.xclient.data.l[1] = 1; // accept the drop
149 event.xclient.data.l[1] = 0; // do not accept
152 OSAPI_GetScreenSize( w, h );
153 event.xclient.data.l[2] = 0;
154 event.xclient.data.l[3] = (w << 16) | h;
155 event.xclient.data.l[4] = actionAtom;
157 // Tell the source whether we accept the drop
158 XSendEvent( display, src, False, 0, &event );
161 //---------------------------------------------------------------------------
162 void X11DropObject::DndLeave( ldata_t data )
165 //---------------------------------------------------------------------------
166 void X11DropObject::DndDrop( ldata_t data )
168 Window src = data[0];
172 Atom selectionAtom = XInternAtom( display, "XdndSelection", 0 );
173 Atom targetAtom = XInternAtom( display, "text/plain", 0 );
174 Atom propAtom = XInternAtom( display, "VLC_SELECTION", 0 );
176 Atom actionAtom = XInternAtom( display, "XdndActionCopy", 0 );
177 Atom typeAtom = XInternAtom( display, "XdndFinished", 0 );
179 // Convert the selection into the given target
180 XConvertSelection( display, selectionAtom, targetAtom, propAtom, src,
183 // Read the selection
186 unsigned long nitems, nbytes;
188 XGetWindowProperty( display, src, propAtom, 0, 1024, False,
189 AnyPropertyType, &type, &format, &nitems, &nbytes,
190 (unsigned char**)&buffer );
191 string selection = "";
199 if( selection != "" )
201 // TODO: multiple files handling
202 string::size_type end = selection.find( "\n", 0 );
203 selection = selection.substr( 0, end -1 );
204 end = selection.find( "\r", 0 );
205 selection = selection.substr( 0, end -1 );
207 // Find the protocol, if any
208 string::size_type pos = selection.find( ":", 0 );
209 if( selection.find("///", pos + 1 ) == pos + 1 )
211 selection.erase( pos + 1, 2 );
214 char *name = new char[selection.size()+1];
215 strncpy( name, selection.c_str(), selection.size()+1 );
218 OSAPI_PostMessage( NULL, VLC_DROP, (unsigned int)name, 1 );
222 OSAPI_PostMessage( NULL, VLC_DROP, (unsigned int)name, 0 );
226 // Tell the source we accepted the drop
228 event.type = ClientMessage;
229 event.xclient.window = src;
230 event.xclient.display = display;
231 event.xclient.message_type = typeAtom;
232 event.xclient.format = 32;
233 event.xclient.data.l[0] = Win;
234 event.xclient.data.l[1] = 1; // drop accepted
235 event.xclient.data.l[2] = actionAtom;
237 XSendEvent( display, src, False, 0, &event );