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mpv/input/keycodes.c

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/*
* 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 <stddef.h>
#include <string.h>
#include <strings.h>
#include "misc/bstr.h"
#include "common/common.h"
#include "common/msg.h"
#include "keycodes.h"
struct key_name {
int key;
char *name;
};
/// The names of the keys as used in input.conf
/// If you add some new keys, you also need to add them here
static const struct key_name key_names[] = {
{ ' ', "SPACE" },
{ '#', "SHARP" },
{ 0x3000, "IDEOGRAPHIC_SPACE" },
{ MP_KEY_ENTER, "ENTER" },
{ MP_KEY_TAB, "TAB" },
{ MP_KEY_BACKSPACE, "BS" },
{ MP_KEY_DELETE, "DEL" },
{ MP_KEY_INSERT, "INS" },
{ MP_KEY_HOME, "HOME" },
{ MP_KEY_END, "END" },
{ MP_KEY_PAGE_UP, "PGUP" },
{ MP_KEY_PAGE_DOWN, "PGDWN" },
{ MP_KEY_ESC, "ESC" },
{ MP_KEY_PRINT, "PRINT" },
{ MP_KEY_RIGHT, "RIGHT" },
{ MP_KEY_LEFT, "LEFT" },
{ MP_KEY_DOWN, "DOWN" },
{ MP_KEY_UP, "UP" },
{ MP_KEY_F+1, "F1" },
{ MP_KEY_F+2, "F2" },
{ MP_KEY_F+3, "F3" },
{ MP_KEY_F+4, "F4" },
{ MP_KEY_F+5, "F5" },
{ MP_KEY_F+6, "F6" },
{ MP_KEY_F+7, "F7" },
{ MP_KEY_F+8, "F8" },
{ MP_KEY_F+9, "F9" },
{ MP_KEY_F+10, "F10" },
{ MP_KEY_F+11, "F11" },
{ MP_KEY_F+12, "F12" },
{ MP_KEY_F+13, "F13" },
{ MP_KEY_F+14, "F14" },
{ MP_KEY_F+15, "F15" },
{ MP_KEY_F+16, "F16" },
{ MP_KEY_F+17, "F17" },
{ MP_KEY_F+18, "F18" },
{ MP_KEY_F+19, "F19" },
{ MP_KEY_F+20, "F20" },
{ MP_KEY_F+21, "F21" },
{ MP_KEY_F+22, "F22" },
{ MP_KEY_F+23, "F23" },
{ MP_KEY_F+24, "F24" },
{ MP_KEY_KP0, "KP0" },
{ MP_KEY_KP1, "KP1" },
{ MP_KEY_KP2, "KP2" },
{ MP_KEY_KP3, "KP3" },
{ MP_KEY_KP4, "KP4" },
{ MP_KEY_KP5, "KP5" },
{ MP_KEY_KP6, "KP6" },
{ MP_KEY_KP7, "KP7" },
{ MP_KEY_KP8, "KP8" },
{ MP_KEY_KP9, "KP9" },
{ MP_KEY_KPDEL, "KP_DEL" },
{ MP_KEY_KPDEC, "KP_DEC" },
{ MP_KEY_KPINS, "KP_INS" },
{ MP_KEY_KPENTER, "KP_ENTER" },
{ MP_MBTN_LEFT, "MBTN_LEFT" },
{ MP_MBTN_MID, "MBTN_MID" },
{ MP_MBTN_RIGHT, "MBTN_RIGHT" },
{ MP_WHEEL_UP, "WHEEL_UP" },
{ MP_WHEEL_DOWN, "WHEEL_DOWN" },
{ MP_WHEEL_LEFT, "WHEEL_LEFT" },
{ MP_WHEEL_RIGHT, "WHEEL_RIGHT" },
{ MP_MBTN_BACK, "MBTN_BACK" },
{ MP_MBTN_FORWARD, "MBTN_FORWARD" },
{ MP_MBTN9, "MBTN9" },
{ MP_MBTN10, "MBTN10" },
{ MP_MBTN11, "MBTN11" },
{ MP_MBTN12, "MBTN12" },
{ MP_MBTN13, "MBTN13" },
{ MP_MBTN14, "MBTN14" },
{ MP_MBTN15, "MBTN15" },
{ MP_MBTN16, "MBTN16" },
{ MP_MBTN17, "MBTN17" },
{ MP_MBTN18, "MBTN18" },
{ MP_MBTN19, "MBTN19" },
{ MP_MBTN_LEFT_DBL, "MBTN_LEFT_DBL" },
{ MP_MBTN_MID_DBL, "MBTN_MID_DBL" },
{ MP_MBTN_RIGHT_DBL, "MBTN_RIGHT_DBL" },
{ MP_KEY_GAMEPAD_ACTION_DOWN, "GAMEPAD_ACTION_DOWN" },
{ MP_KEY_GAMEPAD_ACTION_RIGHT, "GAMEPAD_ACTION_RIGHT" },
{ MP_KEY_GAMEPAD_ACTION_LEFT, "GAMEPAD_ACTION_LEFT" },
{ MP_KEY_GAMEPAD_ACTION_UP, "GAMEPAD_ACTION_UP" },
{ MP_KEY_GAMEPAD_BACK, "GAMEPAD_BACK" },
{ MP_KEY_GAMEPAD_MENU, "GAMEPAD_MENU" },
{ MP_KEY_GAMEPAD_START, "GAMEPAD_START" },
{ MP_KEY_GAMEPAD_LEFT_SHOULDER, "GAMEPAD_LEFT_SHOULDER" },
{ MP_KEY_GAMEPAD_RIGHT_SHOULDER, "GAMEPAD_RIGHT_SHOULDER" },
{ MP_KEY_GAMEPAD_LEFT_TRIGGER, "GAMEPAD_LEFT_TRIGGER" },
{ MP_KEY_GAMEPAD_RIGHT_TRIGGER, "GAMEPAD_RIGHT_TRIGGER" },
{ MP_KEY_GAMEPAD_LEFT_STICK, "GAMEPAD_LEFT_STICK" },
{ MP_KEY_GAMEPAD_RIGHT_STICK, "GAMEPAD_RIGHT_STICK" },
{ MP_KEY_GAMEPAD_DPAD_UP, "GAMEPAD_DPAD_UP" },
{ MP_KEY_GAMEPAD_DPAD_DOWN, "GAMEPAD_DPAD_DOWN" },
{ MP_KEY_GAMEPAD_DPAD_LEFT, "GAMEPAD_DPAD_LEFT" },
{ MP_KEY_GAMEPAD_DPAD_RIGHT, "GAMEPAD_DPAD_RIGHT" },
{ MP_KEY_GAMEPAD_LEFT_STICK_UP, "GAMEPAD_LEFT_STICK_UP" },
{ MP_KEY_GAMEPAD_LEFT_STICK_DOWN, "GAMEPAD_LEFT_STICK_DOWN" },
{ MP_KEY_GAMEPAD_LEFT_STICK_LEFT, "GAMEPAD_LEFT_STICK_LEFT" },
{ MP_KEY_GAMEPAD_LEFT_STICK_RIGHT, "GAMEPAD_LEFT_STICK_RIGHT" },
{ MP_KEY_GAMEPAD_RIGHT_STICK_UP, "GAMEPAD_RIGHT_STICK_UP" },
{ MP_KEY_GAMEPAD_RIGHT_STICK_DOWN, "GAMEPAD_RIGHT_STICK_DOWN" },
{ MP_KEY_GAMEPAD_RIGHT_STICK_LEFT, "GAMEPAD_RIGHT_STICK_LEFT" },
{ MP_KEY_GAMEPAD_RIGHT_STICK_RIGHT, "GAMEPAD_RIGHT_STICK_RIGHT" },
{ MP_KEY_POWER, "POWER" },
{ MP_KEY_MENU, "MENU" },
{ MP_KEY_PLAY, "PLAY" },
{ MP_KEY_PAUSE, "PAUSE" },
{ MP_KEY_PLAYPAUSE, "PLAYPAUSE" },
{ MP_KEY_STOP, "STOP" },
{ MP_KEY_FORWARD, "FORWARD" },
{ MP_KEY_REWIND, "REWIND" },
{ MP_KEY_NEXT, "NEXT" },
{ MP_KEY_PREV, "PREV" },
{ MP_KEY_VOLUME_UP, "VOLUME_UP" },
{ MP_KEY_VOLUME_DOWN, "VOLUME_DOWN" },
{ MP_KEY_MUTE, "MUTE" },
{ MP_KEY_HOMEPAGE, "HOMEPAGE" },
{ MP_KEY_WWW, "WWW" },
{ MP_KEY_MAIL, "MAIL" },
{ MP_KEY_FAVORITES, "FAVORITES" },
{ MP_KEY_SEARCH, "SEARCH" },
{ MP_KEY_SLEEP, "SLEEP" },
{ MP_KEY_CANCEL, "CANCEL" },
{ MP_KEY_RECORD, "RECORD" },
{ MP_KEY_CHANNEL_UP, "CHANNEL_UP" },
{ MP_KEY_CHANNEL_DOWN,"CHANNEL_DOWN" },
{ MP_KEY_PLAYONLY, "PLAYONLY" },
{ MP_KEY_PAUSEONLY, "PAUSEONLY" },
// These are kept for backward compatibility
{ MP_KEY_PAUSE, "XF86_PAUSE" },
{ MP_KEY_STOP, "XF86_STOP" },
{ MP_KEY_PREV, "XF86_PREV" },
{ MP_KEY_NEXT, "XF86_NEXT" },
// Deprecated numeric aliases for the mouse buttons
{ MP_MBTN_LEFT, "MOUSE_BTN0" },
{ MP_MBTN_MID, "MOUSE_BTN1" },
{ MP_MBTN_RIGHT, "MOUSE_BTN2" },
{ MP_WHEEL_UP, "MOUSE_BTN3" },
{ MP_WHEEL_DOWN, "MOUSE_BTN4" },
{ MP_WHEEL_LEFT, "MOUSE_BTN5" },
{ MP_WHEEL_RIGHT, "MOUSE_BTN6" },
{ MP_MBTN_BACK, "MOUSE_BTN7" },
{ MP_MBTN_FORWARD, "MOUSE_BTN8" },
{ MP_MBTN9, "MOUSE_BTN9" },
{ MP_MBTN10, "MOUSE_BTN10" },
{ MP_MBTN11, "MOUSE_BTN11" },
{ MP_MBTN12, "MOUSE_BTN12" },
{ MP_MBTN13, "MOUSE_BTN13" },
{ MP_MBTN14, "MOUSE_BTN14" },
{ MP_MBTN15, "MOUSE_BTN15" },
{ MP_MBTN16, "MOUSE_BTN16" },
{ MP_MBTN17, "MOUSE_BTN17" },
{ MP_MBTN18, "MOUSE_BTN18" },
{ MP_MBTN19, "MOUSE_BTN19" },
{ MP_MBTN_LEFT_DBL, "MOUSE_BTN0_DBL" },
{ MP_MBTN_MID_DBL, "MOUSE_BTN1_DBL" },
{ MP_MBTN_RIGHT_DBL, "MOUSE_BTN2_DBL" },
{ MP_WHEEL_UP, "AXIS_UP" },
{ MP_WHEEL_DOWN, "AXIS_DOWN" },
{ MP_WHEEL_LEFT, "AXIS_LEFT" },
{ MP_WHEEL_RIGHT, "AXIS_RIGHT" },
{ MP_KEY_CLOSE_WIN, "CLOSE_WIN" },
{ MP_KEY_MOUSE_MOVE, "MOUSE_MOVE" },
{ MP_KEY_MOUSE_LEAVE, "MOUSE_LEAVE" },
{ MP_KEY_MOUSE_ENTER, "MOUSE_ENTER" },
{ MP_KEY_UNMAPPED, "UNMAPPED" },
{ MP_KEY_ANY_UNICODE, "ANY_UNICODE" },
{ 0, NULL }
};
static const struct key_name modifier_names[] = {
{ MP_KEY_MODIFIER_SHIFT, "Shift" },
{ MP_KEY_MODIFIER_CTRL, "Ctrl" },
{ MP_KEY_MODIFIER_ALT, "Alt" },
{ MP_KEY_MODIFIER_META, "Meta" },
{ 0 }
};
int mp_input_get_key_from_name(const char *name)
{
int modifiers = 0;
const char *p;
while ((p = strchr(name, '+'))) {
for (const struct key_name *m = modifier_names; m->name; m++)
if (!bstrcasecmp(bstr0(m->name),
(struct bstr){(char *)name, p - name})) {
modifiers |= m->key;
goto found;
}
if (!strcmp(name, "+"))
return '+' + modifiers;
return -1;
found:
name = p + 1;
}
struct bstr bname = bstr0(name);
struct bstr rest;
int code = bstr_decode_utf8(bname, &rest);
if (code >= 0 && rest.len == 0)
return mp_normalize_keycode(code + modifiers);
if (bstr_startswith0(bname, "0x"))
return mp_normalize_keycode(strtol(name, NULL, 16) + modifiers);
for (int i = 0; key_names[i].name != NULL; i++) {
if (strcasecmp(key_names[i].name, name) == 0)
return mp_normalize_keycode(key_names[i].key + modifiers);
}
return -1;
}
static void mp_input_append_key_name(bstr *buf, int key)
{
for (int i = 0; modifier_names[i].name; i++) {
if (modifier_names[i].key & key) {
bstr_xappend_asprintf(NULL, buf, "%s+", modifier_names[i].name);
key -= modifier_names[i].key;
}
}
for (int i = 0; key_names[i].name != NULL; i++) {
if (key_names[i].key == key) {
bstr_xappend_asprintf(NULL, buf, "%s", key_names[i].name);
return;
}
}
if (MP_KEY_IS_UNICODE(key)) {
mp_append_utf8_bstr(NULL, buf, key);
return;
}
// Print the hex key code
bstr_xappend_asprintf(NULL, buf, "0x%x", key);
}
char *mp_input_get_key_name(int key)
{
bstr dst = {0};
mp_input_append_key_name(&dst, key);
return dst.start;
}
char *mp_input_get_key_combo_name(const int *keys, int max)
{
bstr dst = {0};
while (max > 0) {
mp_input_append_key_name(&dst, *keys);
if (--max && *++keys)
bstr_xappend(NULL, &dst, bstr0("-"));
else
break;
}
return dst.start;
}
int mp_input_get_keys_from_string(char *name, int max_num_keys,
int *out_num_keys, int *keys)
{
char *end, *ptr;
int n = 0;
ptr = name;
n = 0;
for (end = strchr(ptr, '-'); ; end = strchr(ptr, '-')) {
if (end && end[1] != '\0') {
if (end[1] == '-')
end = &end[1];
end[0] = '\0';
}
keys[n] = mp_input_get_key_from_name(ptr);
if (keys[n] < 0)
return 0;
n++;
if (end && end[1] != '\0' && n < max_num_keys)
ptr = &end[1];
else
break;
}
*out_num_keys = n;
return 1;
}
void mp_print_key_list(struct mp_log *out)
{
mp_info(out, "\n");
for (int i = 0; key_names[i].name != NULL; i++)
mp_info(out, "%s\n", key_names[i].name);
}
char **mp_get_key_list(void)
{
char **list = NULL;
int num = 0;
for (int i = 0; key_names[i].name != NULL; i++)
MP_TARRAY_APPEND(NULL, list, num, talloc_strdup(NULL, key_names[i].name));
MP_TARRAY_APPEND(NULL, list, num, NULL);
return list;
}
int mp_normalize_keycode(int keycode)
{
if (keycode <= 0)
return keycode;
int code = keycode & ~MP_KEY_MODIFIER_MASK;
int mod = keycode & MP_KEY_MODIFIER_MASK;
/* On normal keyboards shift changes the character code of non-special
* keys, so don't count the modifier separately for those. In other words
* we want to have "a" and "A" instead of "a" and "Shift+A"; but a separate
* shift modifier is still kept for special keys like arrow keys. */
if (code >= 32 && code < MP_KEY_BASE) {
/* Still try to support ASCII case-modifications properly. For example,
* we want to change "Shift+a" to "A", not "a". Doing this for unicode
* in general would require huge lookup tables, or a libc with proper
* unicode support, so we don't do that. */
if (code >= 'a' && code <= 'z' && (mod & MP_KEY_MODIFIER_SHIFT))
code &= 0x5F;
mod &= ~MP_KEY_MODIFIER_SHIFT;
}
return code | mod;
}
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