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/*****************************************************************************
* win32.c: Global-Hotkey _WIN32 handling for vlc
*****************************************************************************
* Copyright (C) 2008-2009 the VideoLAN team
*
* Authors: Domani Hannes <ssbssa at yahoo dot de>
*
* 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 HAVE_CONFIG_H
# include "config.h"
#endif
#include <ctype.h>
#define VLC_MODULE_LICENSE VLC_LICENSE_GPL_2_PLUS
#include <vlc_common.h>
#include <vlc_plugin.h>
#include <vlc_interface.h>
#include <vlc_actions.h>
/*****************************************************************************
* Local prototypes
*****************************************************************************/
static int Open( vlc_object_t *p_this );
static void Close( vlc_object_t *p_this );
static void *Thread( void *p_data );
LRESULT CALLBACK WMHOTKEYPROC( HWND, UINT, WPARAM, LPARAM );
/*****************************************************************************
* Module descriptor
*****************************************************************************/
vlc_module_begin()
set_shortname( N_("Global Hotkeys") )
set_category( CAT_INTERFACE )
set_subcategory( SUBCAT_INTERFACE_HOTKEYS )
set_description( N_("Global Hotkeys interface") )
set_capability( "interface", 0 )
set_callbacks( Open, Close )
add_shortcut( "globalhotkeys" )
vlc_module_end()
struct intf_sys_t
{
vlc_thread_t thread;
HWND hotkeyWindow;
vlc_mutex_t lock;
vlc_cond_t wait;
};
/*****************************************************************************
* Open: initialize interface
*****************************************************************************/
static int Open( vlc_object_t *p_this )
{
intf_thread_t *p_intf = (intf_thread_t *)p_this;
intf_sys_t *p_sys = malloc( sizeof (intf_sys_t) );
if( p_sys == NULL )
return VLC_ENOMEM;
p_intf->p_sys = p_sys;
p_sys->hotkeyWindow = NULL;
vlc_mutex_init( &p_sys->lock );
vlc_cond_init( &p_sys->wait );
if( vlc_clone( &p_sys->thread, Thread, p_intf, VLC_THREAD_PRIORITY_LOW ) )
{
vlc_mutex_destroy( &p_sys->lock );
vlc_cond_destroy( &p_sys->wait );
free( p_sys );
p_intf->p_sys = NULL;
return VLC_ENOMEM;
}
vlc_mutex_lock( &p_sys->lock );
while( p_sys->hotkeyWindow == NULL )
vlc_cond_wait( &p_sys->wait, &p_sys->lock );
if( p_sys->hotkeyWindow == INVALID_HANDLE_VALUE )
{
vlc_mutex_unlock( &p_sys->lock );
vlc_join( p_sys->thread, NULL );
vlc_mutex_destroy( &p_sys->lock );
vlc_cond_destroy( &p_sys->wait );
free( p_sys );
p_intf->p_sys = NULL;
return VLC_ENOMEM;
}
vlc_mutex_unlock( &p_sys->lock );
return VLC_SUCCESS;
}
/*****************************************************************************
* Close: destroy interface
*****************************************************************************/
static void Close( vlc_object_t *p_this )
{
intf_thread_t *p_intf = (intf_thread_t *)p_this;
intf_sys_t *p_sys = p_intf->p_sys;
/* stop hotkey window */
vlc_mutex_lock( &p_sys->lock );
if( p_sys->hotkeyWindow != NULL )
PostMessage( p_sys->hotkeyWindow, WM_CLOSE, 0, 0 );
vlc_mutex_unlock( &p_sys->lock );
vlc_join( p_sys->thread, NULL );
vlc_mutex_destroy( &p_sys->lock );
vlc_cond_destroy( &p_sys->wait );
free( p_sys );
}
/*****************************************************************************
* Thread: main loop
*****************************************************************************/
static void *Thread( void *p_data )
{
MSG message;
intf_thread_t *p_intf = p_data;
intf_sys_t *p_sys = p_intf->p_sys;
/* Window which receives Hotkeys */
vlc_mutex_lock( &p_sys->lock );
p_sys->hotkeyWindow =
(void*)CreateWindow( _T("STATIC"), /* name of window class */
_T("VLC ghk ") _T(VERSION), /* window title bar text */
0, /* window style */
0, /* default X coordinate */
0, /* default Y coordinate */
0, /* window width */
0, /* window height */
NULL, /* no parent window */
NULL, /* no menu in this window */
GetModuleHandle(NULL), /* handle of this program instance */
NULL ); /* sent to WM_CREATE */
if( p_sys->hotkeyWindow == NULL )
{
p_sys->hotkeyWindow = INVALID_HANDLE_VALUE;
vlc_cond_signal( &p_sys->wait );
vlc_mutex_unlock( &p_sys->lock );
return NULL;
}
vlc_cond_signal( &p_sys->wait );
vlc_mutex_unlock( &p_sys->lock );
SetWindowLongPtr( p_sys->hotkeyWindow, GWLP_WNDPROC,
(LONG_PTR)WMHOTKEYPROC );
SetWindowLongPtr( p_sys->hotkeyWindow, GWLP_USERDATA,
(LONG_PTR)p_intf );
/* Registering of Hotkeys */
for( const char* const* ppsz_keys = vlc_actions_get_key_names( p_intf );
*ppsz_keys != NULL; ppsz_keys++ )
{
uint_fast32_t *p_keys;
size_t i_nb_keys = vlc_actions_get_keycodes( p_intf, *ppsz_keys, true,
&p_keys );
for( size_t i = 0; i < i_nb_keys; ++i )
{
uint_fast32_t i_key = p_keys[i];
UINT i_keyMod = 0;
if( i_key & KEY_MODIFIER_SHIFT ) i_keyMod |= MOD_SHIFT;
if( i_key & KEY_MODIFIER_ALT ) i_keyMod |= MOD_ALT;
if( i_key & KEY_MODIFIER_CTRL ) i_keyMod |= MOD_CONTROL;
#define HANDLE( key ) case KEY_##key: i_vk = VK_##key; break
#define HANDLE2( key, key2 ) case KEY_##key: i_vk = VK_##key2; break
#define KEY_SPACE ' '
#ifndef VK_VOLUME_DOWN
#define VK_VOLUME_DOWN 0xAE
#define VK_VOLUME_UP 0xAF
#endif
#ifndef VK_MEDIA_NEXT_TRACK
#define VK_MEDIA_NEXT_TRACK 0xB0
#define VK_MEDIA_PREV_TRACK 0xB1
#define VK_MEDIA_STOP 0xB2
#define VK_MEDIA_PLAY_PAUSE 0xB3
#endif
#ifndef VK_PAGEUP
#define VK_PAGEUP 0x21
#define VK_PAGEDOWN 0x22
#endif
UINT i_vk = 0;
switch( i_key & ~KEY_MODIFIER )
{
HANDLE( LEFT );
HANDLE( RIGHT );
HANDLE( UP );
HANDLE( DOWN );
HANDLE( SPACE );
HANDLE2( ESC, ESCAPE );
HANDLE2( ENTER, RETURN );
HANDLE( F1 );
HANDLE( F2 );
HANDLE( F3 );
HANDLE( F4 );
HANDLE( F5 );
HANDLE( F6 );
HANDLE( F7 );
HANDLE( F8 );
HANDLE( F9 );
HANDLE( F10 );
HANDLE( F11 );
HANDLE( F12 );
HANDLE( PAGEUP );
HANDLE( PAGEDOWN );
HANDLE( HOME );
HANDLE( END );
HANDLE( INSERT );
HANDLE( DELETE );
HANDLE( VOLUME_DOWN );
HANDLE( VOLUME_UP );
HANDLE( MEDIA_PLAY_PAUSE );
HANDLE( MEDIA_STOP );
HANDLE( MEDIA_PREV_TRACK );
HANDLE( MEDIA_NEXT_TRACK );
default:
i_vk = toupper( (uint8_t)(i_key & ~KEY_MODIFIER) );
break;
}
if( !i_vk ) continue;
#undef HANDLE
#undef HANDLE2
ATOM atom = GlobalAddAtomA( *ppsz_keys );
if( !atom ) continue;
if( !RegisterHotKey( p_sys->hotkeyWindow, atom, i_keyMod, i_vk ) )
GlobalDeleteAtom( atom );
}
free( p_keys );
}
/* Main message loop */
while( GetMessage( &message, NULL, 0, 0 ) )
DispatchMessage( &message );
/* Unregistering of Hotkeys */
for( const char* const* ppsz_keys = vlc_actions_get_key_names( p_intf );
*ppsz_keys != NULL; ppsz_keys++ )
{
ATOM atom = GlobalFindAtomA( *ppsz_keys );
if( !atom ) continue;
if( UnregisterHotKey( p_sys->hotkeyWindow, atom ) )
GlobalDeleteAtom( atom );
}
/* close window */
vlc_mutex_lock( &p_sys->lock );
DestroyWindow( p_sys->hotkeyWindow );
p_sys->hotkeyWindow = NULL;
vlc_mutex_unlock( &p_sys->lock );
return NULL;
}
/*****************************************************************************
* WMHOTKEYPROC: event callback
*****************************************************************************/
LRESULT CALLBACK WMHOTKEYPROC( HWND hwnd, UINT uMsg, WPARAM wParam,
LPARAM lParam )
{
switch( uMsg )
{
case WM_HOTKEY:
{
char psz_atomName[44];
LONG_PTR ret = GetWindowLongPtr( hwnd, GWLP_USERDATA );
intf_thread_t *p_intf = (intf_thread_t*)ret;
strcpy( psz_atomName, "key-" );
if( !GlobalGetAtomNameA(
wParam, psz_atomName + 4,
sizeof( psz_atomName ) - 4 ) )
return 0;
/* search for key associated with VLC */
vlc_action_id_t action = vlc_actions_get_id( psz_atomName );
if( action != ACTIONID_NONE )
{
var_SetInteger( p_intf->obj.libvlc,
"key-action", action );
return 1;
}
}
break;
case WM_DESTROY:
PostQuitMessage( 0 );
break;
default:
return DefWindowProc( hwnd, uMsg, wParam, lParam );
}
return 0;
}