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mpv/osdep/w32_keyboard.c
James Ross-Gowan 037c7a9279 w32_common: handle media keys
This was attempted before in fc9695e63b5b, but it was reverted in
1b7ce759b1f4 because it caused conflicts with other software watching
the same keys (See #2041.) It seems like some PCs ship with OEM software
that watches the volume keys without consuming key events and this
causes them to be handled twice, once by mpv and once by the other
software.

In order to prevent conflicts like this, use the WM_APPCOMMAND message
to handle media keys. Returning TRUE from the WM_APPCOMMAND handler
should indicate to the operating system that we consumed the key event
and it should not be propogated to the shell. Also, we now only listen
for keys that are directly related to multimedia playback (eg. the
APPCOMMAND_MEDIA_* keys.) Keys like APPCOMMAND_VOLUME_* are ignored, so
they can be handled by the shell, or by other mixer software.
2017-08-05 02:38:44 +10:00

112 lines
3.8 KiB
C

/*
* This file is part of mpv.
*
* mpv is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* mpv 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
*/
#include <windows.h>
#include "osdep/w32_keyboard.h"
#include "input/keycodes.h"
struct keymap {
int from;
int to;
};
static const struct keymap vk_map_ext[] = {
// cursor keys
{VK_LEFT, MP_KEY_LEFT}, {VK_UP, MP_KEY_UP}, {VK_RIGHT, MP_KEY_RIGHT},
{VK_DOWN, MP_KEY_DOWN},
// navigation block
{VK_INSERT, MP_KEY_INSERT}, {VK_DELETE, MP_KEY_DELETE},
{VK_HOME, MP_KEY_HOME}, {VK_END, MP_KEY_END}, {VK_PRIOR, MP_KEY_PAGE_UP},
{VK_NEXT, MP_KEY_PAGE_DOWN},
// numpad independent of numlock
{VK_RETURN, MP_KEY_KPENTER},
{0, 0}
};
static const struct keymap vk_map[] = {
// special keys
{VK_ESCAPE, MP_KEY_ESC}, {VK_BACK, MP_KEY_BS}, {VK_TAB, MP_KEY_TAB},
{VK_RETURN, MP_KEY_ENTER}, {VK_PAUSE, MP_KEY_PAUSE},
{VK_SNAPSHOT, MP_KEY_PRINT}, {VK_APPS, MP_KEY_MENU},
// F-keys
{VK_F1, MP_KEY_F+1}, {VK_F2, MP_KEY_F+2}, {VK_F3, MP_KEY_F+3},
{VK_F4, MP_KEY_F+4}, {VK_F5, MP_KEY_F+5}, {VK_F6, MP_KEY_F+6},
{VK_F7, MP_KEY_F+7}, {VK_F8, MP_KEY_F+8}, {VK_F9, MP_KEY_F+9},
{VK_F10, MP_KEY_F+10}, {VK_F11, MP_KEY_F+11}, {VK_F12, MP_KEY_F+12},
// numpad with numlock
{VK_NUMPAD0, MP_KEY_KP0}, {VK_NUMPAD1, MP_KEY_KP1},
{VK_NUMPAD2, MP_KEY_KP2}, {VK_NUMPAD3, MP_KEY_KP3},
{VK_NUMPAD4, MP_KEY_KP4}, {VK_NUMPAD5, MP_KEY_KP5},
{VK_NUMPAD6, MP_KEY_KP6}, {VK_NUMPAD7, MP_KEY_KP7},
{VK_NUMPAD8, MP_KEY_KP8}, {VK_NUMPAD9, MP_KEY_KP9},
{VK_DECIMAL, MP_KEY_KPDEC},
// numpad without numlock
{VK_INSERT, MP_KEY_KPINS}, {VK_END, MP_KEY_KP1}, {VK_DOWN, MP_KEY_KP2},
{VK_NEXT, MP_KEY_KP3}, {VK_LEFT, MP_KEY_KP4}, {VK_CLEAR, MP_KEY_KP5},
{VK_RIGHT, MP_KEY_KP6}, {VK_HOME, MP_KEY_KP7}, {VK_UP, MP_KEY_KP8},
{VK_PRIOR, MP_KEY_KP9}, {VK_DELETE, MP_KEY_KPDEL},
{0, 0}
};
static const struct keymap appcmd_map[] = {
{APPCOMMAND_MEDIA_NEXTTRACK, MP_KEY_NEXT},
{APPCOMMAND_MEDIA_PREVIOUSTRACK, MP_KEY_PREV},
{APPCOMMAND_MEDIA_STOP, MP_KEY_STOP},
{APPCOMMAND_MEDIA_PLAY_PAUSE, MP_KEY_PLAYPAUSE},
{APPCOMMAND_MEDIA_PLAY, MP_KEY_PLAY},
{APPCOMMAND_MEDIA_PAUSE, MP_KEY_PAUSE},
{APPCOMMAND_MEDIA_RECORD, MP_KEY_RECORD},
{APPCOMMAND_MEDIA_FAST_FORWARD, MP_KEY_FORWARD},
{APPCOMMAND_MEDIA_REWIND, MP_KEY_REWIND},
{APPCOMMAND_MEDIA_CHANNEL_UP, MP_KEY_CHANNEL_UP},
{APPCOMMAND_MEDIA_CHANNEL_DOWN, MP_KEY_CHANNEL_DOWN},
{0, 0}
};
static int lookup_keymap(const struct keymap *map, int key)
{
while (map->from && map->from != key) map++;
return map->to;
}
int mp_w32_vkey_to_mpkey(UINT vkey, bool extended)
{
// The extended flag is set for the navigation cluster and the arrow keys,
// so it can be used to differentiate between them and the numpad. The
// numpad enter key also has this flag set.
int mpkey = lookup_keymap(extended ? vk_map_ext : vk_map, vkey);
// If we got the extended flag for a key we don't recognize, search the
// normal keymap before giving up
if (extended && !mpkey)
mpkey = lookup_keymap(vk_map, vkey);
return mpkey;
}
int mp_w32_appcmd_to_mpkey(UINT appcmd)
{
return lookup_keymap(appcmd_map, appcmd);
}