/*****************************************************************************
* x11_dragdrop.cpp
*****************************************************************************
* Copyright (C) 2003 the VideoLAN team
*
* Authors: Cyril Deguet <asmax@via.ecp.fr>
* Olivier Teulière <ipkiss@via.ecp.fr>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#ifdef X11_SKINS
#include <X11/Xlib.h>
#include <X11/Xatom.h>
#include "x11_dragdrop.hpp"
#include "x11_display.hpp"
#include "x11_factory.hpp"
#include "../commands/cmd_add_item.hpp"
#include "../events/evt_dragndrop.hpp"
#include <string>
#include <list>
X11DragDrop::X11DragDrop( intf_thread_t *pIntf, X11Display &rDisplay,
Window win, bool playOnDrop, GenericWindow *pWin ):
SkinObject( pIntf ), m_rDisplay( rDisplay ), m_wnd( win ),
m_playOnDrop( playOnDrop ), m_pWin( pWin ), m_xPos( -1 ), m_yPos( -1 )
{
}
void X11DragDrop::dndEnter( ldata_t data )
{
Window src = data[0];
int version = data[1]>>24;
m_xPos = m_yPos = -1;
(void)version;
// Retrieve available data types
std::list<std::string> dataTypes;
if( data[1] & 1 ) // More than 3 data types ?
{
Atom type;
int format;
unsigned long nitems, nbytes;
Atom *dataList;
Atom typeListAtom = XInternAtom( XDISPLAY, "XdndTypeList", 0 );
if( XGetWindowProperty( XDISPLAY, src, typeListAtom, 0, 65536,
False, XA_ATOM, &type, &format, &nitems, &nbytes,
(unsigned char**)&dataList ) != Success )
return;
for( unsigned long i=0; i<nitems; i++ )
{
std::string dataType = XGetAtomName( XDISPLAY, dataList[i] );
dataTypes.push_back( std::move(dataType) );
}
XFree( (void*)dataList );
}
else
{
for( int i = 2; i < 5; i++ )
{
if( data[i] != None )
{
std::string dataType = XGetAtomName( XDISPLAY, data[i] );
dataTypes.push_back( std::move(dataType) );
}
}
}
// list all data types available
std::list<std::string>::iterator it;
for( it = dataTypes.begin(); it != dataTypes.end(); ++it )
msg_Dbg( getIntf(), "D&D data type: %s", (*it).c_str() );
// data formats we accept sorted by preference
static const char* preferred[] = {
"text/uri-list",
"text/plain;charset=utf-8",
"text/plain",
"UTF8_STRING",
"STRING",
};
m_target = None;
for( unsigned i = 0; i < sizeof(preferred)/sizeof(preferred[0]); i++ )
{
for( it = dataTypes.begin(); it != dataTypes.end(); ++it )
{
if( *it == preferred[i] )
{
m_target = XInternAtom( XDISPLAY, (*it).c_str(), 0 );
msg_Dbg( getIntf(), "Selected type: %s", (*it).c_str() );
break;
}
}
if( m_target != None )
break;
}
// transmit DragEnter event
EvtDragEnter evt( getIntf() );
m_pWin->processEvent( evt );
}
void X11DragDrop::dndPosition( ldata_t data )
{
Window src = data[0];
m_xPos = data[2] >> 16;
m_yPos = data[2] & 0xffff;
Time time = data[3];
Atom action = data[4];
(void)time; (void)action;
Atom actionAtom = XInternAtom( XDISPLAY, "XdndActionCopy", 0 );
Atom typeAtom = XInternAtom( XDISPLAY, "XdndStatus", 0 );
XEvent event;
event.type = ClientMessage;
event.xclient.window = src;
event.xclient.display = XDISPLAY;
event.xclient.message_type = typeAtom;
event.xclient.format = 32;
event.xclient.data.l[0] = m_wnd;
// Accept the drop (1), or not (0).
event.xclient.data.l[1] = m_target != None ? 1 : 0;
event.xclient.data.l[2] = 0;
event.xclient.data.l[3] = 0;
event.xclient.data.l[4] = actionAtom;
// Tell the source whether we accept the drop
XSendEvent( XDISPLAY, src, False, 0, &event );
// transmit DragOver event
EvtDragOver evt( getIntf(), m_xPos, m_yPos );
m_pWin->processEvent( evt );
}
void X11DragDrop::dndLeave( ldata_t data )
{
(void)data;
m_target = None;
// transmit DragLeave event
EvtDragLeave evt( getIntf() );
m_pWin->processEvent( evt );
}
void X11DragDrop::dndDrop( ldata_t data )
{
std::list<std::string> files;
Window src = data[0];
Time time = data[2];
// Convert the selection into the given target
Atom selectionAtom = XInternAtom( XDISPLAY, "XdndSelection", 0 );
Atom propAtom = XInternAtom( XDISPLAY, "VLC_SELECTION", 0 );
XConvertSelection( XDISPLAY, selectionAtom, m_target, propAtom,
m_wnd, time );
// Tell the source we accepted the drop
Atom actionAtom = XInternAtom( XDISPLAY, "XdndActionCopy", 0 );
Atom typeAtom = XInternAtom( XDISPLAY, "XdndFinished", 0 );
XEvent event;
event.type = ClientMessage;
event.xclient.window = src;
event.xclient.display = XDISPLAY;
event.xclient.message_type = typeAtom;
event.xclient.format = 32;
event.xclient.data.l[0] = m_wnd;
event.xclient.data.l[1] = 1; // drop accepted
event.xclient.data.l[2] = actionAtom;
XSendEvent( XDISPLAY, src, False, 0, &event );
}
void X11DragDrop::dndSelectionNotify( )
{
std::list<std::string> files;
// Read the selection
Atom type;
int format;
unsigned long nitems, nbytes_after_return;
char *buffer;
Atom propAtom = XInternAtom( XDISPLAY, "VLC_SELECTION", 0 );
int ret = XGetWindowProperty( XDISPLAY, m_wnd, propAtom, 0, 65536, True,
AnyPropertyType, &type, &format, &nitems,
&nbytes_after_return,
(unsigned char**)&buffer );
if( ret == Success && buffer != NULL )
{
msg_Dbg( getIntf(), "buffer received: %s", buffer );
char* psz_dup = strdup( buffer );
char* psz_new = psz_dup;
while( psz_new && *psz_new )
{
int skip = 0;
const char* sep[] = { "\r\n", "\n", NULL };
for( int i = 0; sep[i]; i++ )
{
char* psz_end = strstr( psz_new, sep[i] );
if( !psz_end )
continue;
*psz_end = '\0';
skip = strlen( sep[i] );
break;
}
if( *psz_new && strstr( psz_new, "://" ) )
{
files.push_back( psz_new );
}
psz_new += strlen( psz_new ) + skip;
}
free( psz_dup );
XFree( buffer );
// transmit DragDrop event
EvtDragDrop evt( getIntf(), m_xPos, m_yPos, files );
m_pWin->processEvent( evt );
}
}
#endif
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*© Formatika GbR, Deutschland
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