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mpv/input/input.c
Marcin Kurczewski f43017bfe9 Update license headers 
Signed-off-by: wm4 <wm4@nowhere>
2015-04-13 12:10:01 +02:00

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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 General Public License as published by
* the Free Software Foundation; either version 2 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with mpv. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <stdbool.h>
#include <unistd.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <fcntl.h>
#include <pthread.h>
#include <assert.h>
#include <libavutil/avstring.h>
#include <libavutil/common.h>
#include "osdep/io.h"
#include "osdep/semaphore.h"
#include "misc/rendezvous.h"
#include "input.h"
#include "keycodes.h"
#include "cmd_list.h"
#include "cmd_parse.h"
#include "osdep/threads.h"
#include "osdep/timer.h"
#include "common/msg.h"
#include "common/global.h"
#include "options/m_config.h"
#include "options/m_option.h"
#include "options/path.h"
#include "talloc.h"
#include "options/options.h"
#include "misc/bstr.h"
#include "stream/stream.h"
#include "common/common.h"
#if HAVE_COCOA
#include "osdep/macosx_events.h"
#endif
#define input_lock(ictx) pthread_mutex_lock(&ictx->mutex)
#define input_unlock(ictx) pthread_mutex_unlock(&ictx->mutex)
#define MP_MAX_KEY_DOWN 4
struct cmd_bind {
int keys[MP_MAX_KEY_DOWN];
int num_keys;
char *cmd;
char *location; // filename/line number of definition
bool is_builtin;
struct cmd_bind_section *owner;
};
struct cmd_bind_section {
struct cmd_bind *binds;
int num_binds;
char *section;
struct mp_rect mouse_area; // set at runtime, if at all
bool mouse_area_set; // mouse_area is valid and should be tested
struct cmd_bind_section *next;
};
#define MP_MAX_SOURCES 10
#define MAX_ACTIVE_SECTIONS 50
struct active_section {
char *name;
int flags;
};
struct cmd_queue {
struct mp_cmd *first;
};
struct input_ctx {
pthread_mutex_t mutex;
sem_t wakeup;
struct mp_log *log;
struct mpv_global *global;
struct input_opts *opts;
bool using_alt_gr;
bool using_ar;
bool using_cocoa_media_keys;
bool win_drag;
// Autorepeat stuff
short ar_state;
int64_t last_ar;
// history of key downs - the newest is in position 0
int key_history[MP_MAX_KEY_DOWN];
// key code of the last key that triggered MP_KEY_STATE_DOWN
int last_key_down;
int64_t last_key_down_time;
struct mp_cmd *current_down_cmd;
int last_doubleclick_key_down;
double last_doubleclick_time;
// Mouse position on the consumer side (as command.c sees it)
int mouse_x, mouse_y;
char *mouse_section; // last section to receive mouse event
// Mouse position on the producer side (as the VO sees it)
// Unlike mouse_x/y, this can be used to resolve mouse click bindings.
int mouse_vo_x, mouse_vo_y;
bool mouse_mangle, mouse_src_mangle;
struct mp_rect mouse_src, mouse_dst;
// List of command binding sections
struct cmd_bind_section *cmd_bind_sections;
// List currently active command sections
struct active_section active_sections[MAX_ACTIVE_SECTIONS];
int num_active_sections;
unsigned int mouse_event_counter;
struct mp_input_src *sources[MP_MAX_SOURCES];
int num_sources;
struct cmd_queue cmd_queue;
struct mp_cancel *cancel;
};
static int parse_config(struct input_ctx *ictx, bool builtin, bstr data,
const char *location, const char *restrict_section);
static void close_input_sources(struct input_ctx *ictx);
#define OPT_BASE_STRUCT struct input_opts
struct input_opts {
char *config_file;
int doubleclick_time;
// Maximum number of queued commands from keypresses (limit to avoid
// repeated slow commands piling up)
int key_fifo_size;
// Autorepeat config (be aware of mp_input_set_repeat_info())
int ar_delay;
int ar_rate;
int use_alt_gr;
int use_appleremote;
int use_media_keys;
int use_app_events;
int default_bindings;
int enable_mouse_movements;
int vo_key_input;
int test;
};
const struct m_sub_options input_config = {
.opts = (const m_option_t[]) {
OPT_STRING("conf", config_file, CONF_GLOBAL | M_OPT_FILE),
OPT_INT("ar-delay", ar_delay, CONF_GLOBAL),
OPT_INT("ar-rate", ar_rate, CONF_GLOBAL),
OPT_PRINT("keylist", mp_print_key_list),
OPT_PRINT("cmdlist", mp_print_cmd_list),
OPT_FLAG("default-bindings", default_bindings, CONF_GLOBAL),
OPT_FLAG("test", test, CONF_GLOBAL),
OPT_INTRANGE("doubleclick-time", doubleclick_time, 0, 0, 1000),
OPT_FLAG("right-alt-gr", use_alt_gr, CONF_GLOBAL),
OPT_INTRANGE("key-fifo-size", key_fifo_size, CONF_GLOBAL, 2, 65000),
OPT_FLAG("cursor", enable_mouse_movements, CONF_GLOBAL),
OPT_FLAG("vo-keyboard", vo_key_input, CONF_GLOBAL),
OPT_FLAG("x11-keyboard", vo_key_input, CONF_GLOBAL), // old alias
#if HAVE_COCOA
OPT_FLAG("appleremote", use_appleremote, CONF_GLOBAL),
OPT_FLAG("media-keys", use_media_keys, CONF_GLOBAL),
OPT_FLAG("app-events", use_app_events, CONF_GLOBAL),
#endif
{0}
},
.size = sizeof(struct input_opts),
.defaults = &(const struct input_opts){
.key_fifo_size = 7,
.doubleclick_time = 300,
.ar_delay = 200,
.ar_rate = 40,
.use_alt_gr = 1,
.enable_mouse_movements = 1,
#if HAVE_COCOA
.use_appleremote = 1,
.use_media_keys = 1,
.use_app_events = 1,
#endif
.default_bindings = 1,
.vo_key_input = 1,
},
};
static const char builtin_input_conf[] =
#include "input/input_conf.h"
;
static bool test_rect(struct mp_rect *rc, int x, int y)
{
return x >= rc->x0 && y >= rc->y0 && x < rc->x1 && y < rc->y1;
}
static int queue_count_cmds(struct cmd_queue *queue)
{
int res = 0;
for (struct mp_cmd *cmd = queue->first; cmd; cmd = cmd->queue_next)
res++;
return res;
}
static void queue_remove(struct cmd_queue *queue, struct mp_cmd *cmd)
{
struct mp_cmd **p_prev = &queue->first;
while (*p_prev != cmd) {
p_prev = &(*p_prev)->queue_next;
}
// if this fails, cmd was not in the queue
assert(*p_prev == cmd);
*p_prev = cmd->queue_next;
}
static struct mp_cmd *queue_remove_head(struct cmd_queue *queue)
{
struct mp_cmd *ret = queue->first;
if (ret)
queue_remove(queue, ret);
return ret;
}
static void queue_add_tail(struct cmd_queue *queue, struct mp_cmd *cmd)
{
struct mp_cmd **p_prev = &queue->first;
while (*p_prev)
p_prev = &(*p_prev)->queue_next;
*p_prev = cmd;
cmd->queue_next = NULL;
}
static struct mp_cmd *queue_peek_tail(struct cmd_queue *queue)
{
struct mp_cmd *cur = queue->first;
while (cur && cur->queue_next)
cur = cur->queue_next;
return cur;
}
static void append_bind_info(struct input_ctx *ictx, char **pmsg,
struct cmd_bind *bind)
{
char *msg = *pmsg;
struct mp_cmd *cmd = mp_input_parse_cmd(ictx, bstr0(bind->cmd),
bind->location);
bstr stripped = cmd ? cmd->original : bstr0(bind->cmd);
msg = talloc_asprintf_append(msg, " '%.*s'", BSTR_P(stripped));
if (!cmd)
msg = talloc_asprintf_append(msg, " (invalid)");
if (strcmp(bind->owner->section, "default") != 0)
msg = talloc_asprintf_append(msg, " in section {%s}",
bind->owner->section);
msg = talloc_asprintf_append(msg, " in %s", bind->location);
if (bind->is_builtin)
msg = talloc_asprintf_append(msg, " (default)");
talloc_free(cmd);
*pmsg = msg;
}
static mp_cmd_t *handle_test(struct input_ctx *ictx, int code)
{
if (code == MP_KEY_CLOSE_WIN) {
MP_WARN(ictx,
"CLOSE_WIN was received. This pseudo key can be remapped too,\n"
"but --input-test will always quit when receiving it.\n");
const char *args[] = {"quit", NULL};
mp_cmd_t *res = mp_input_parse_cmd_strv(ictx->log, args);
return res;
}
char *key_buf = mp_input_get_key_combo_name(&code, 1);
char *msg = talloc_asprintf(NULL, "Key %s is bound to:\n", key_buf);
talloc_free(key_buf);
int count = 0;
for (struct cmd_bind_section *bs = ictx->cmd_bind_sections;
bs; bs = bs->next)
{
for (int i = 0; i < bs->num_binds; i++) {
if (bs->binds[i].num_keys && bs->binds[i].keys[0] == code) {
count++;
if (count > 1)
msg = talloc_asprintf_append(msg, "\n");
msg = talloc_asprintf_append(msg, "%d. ", count);
append_bind_info(ictx, &msg, &bs->binds[i]);
}
}
}
if (!count)
msg = talloc_asprintf_append(msg, "(nothing)");
MP_INFO(ictx, "%s\n", msg);
const char *args[] = {"show_text", msg, NULL};
mp_cmd_t *res = mp_input_parse_cmd_strv(ictx->log, args);
talloc_free(msg);
return res;
}
static struct cmd_bind_section *get_bind_section(struct input_ctx *ictx,
bstr section)
{
struct cmd_bind_section *bind_section = ictx->cmd_bind_sections;
if (section.len == 0)
section = bstr0("default");
while (bind_section) {
if (bstrcmp0(section, bind_section->section) == 0)
return bind_section;
if (bind_section->next == NULL)
break;
bind_section = bind_section->next;
}
if (bind_section) {
bind_section->next = talloc_ptrtype(ictx, bind_section->next);
bind_section = bind_section->next;
} else {
ictx->cmd_bind_sections = talloc_ptrtype(ictx, ictx->cmd_bind_sections);
bind_section = ictx->cmd_bind_sections;
}
*bind_section = (struct cmd_bind_section) {
.section = bstrdup0(bind_section, section),
.mouse_area = {INT_MIN, INT_MIN, INT_MAX, INT_MAX},
.mouse_area_set = true,
};
return bind_section;
}
static void key_buf_add(int *buf, int code)
{
for (int n = MP_MAX_KEY_DOWN - 1; n > 0; n--)
buf[n] = buf[n - 1];
buf[0] = code;
}
static struct cmd_bind *find_bind_for_key_section(struct input_ctx *ictx,
char *section, int code)
{
struct cmd_bind_section *bs = get_bind_section(ictx, bstr0(section));
if (!bs->num_binds)
return NULL;
int keys[MP_MAX_KEY_DOWN];
memcpy(keys, ictx->key_history, sizeof(keys));
key_buf_add(keys, code);
struct cmd_bind *best = NULL;
// Prefer user-defined keys over builtin bindings
for (int builtin = 0; builtin < 2; builtin++) {
if (builtin && !ictx->opts->default_bindings)
break;
if (best)
break;
for (int n = 0; n < bs->num_binds; n++) {
if (bs->binds[n].is_builtin == (bool)builtin) {
struct cmd_bind *b = &bs->binds[n];
// we have: keys=[key2 key1 keyX ...]
// and: b->keys=[key1 key2] (and may be just a prefix)
for (int i = 0; i < b->num_keys; i++) {
if (b->keys[i] != keys[b->num_keys - 1 - i])
goto skip;
}
if (!best || b->num_keys >= best->num_keys)
best = b;
skip: ;
}
}
}
return best;
}
static struct cmd_bind *find_any_bind_for_key(struct input_ctx *ictx,
char *force_section, int code)
{
if (force_section)
return find_bind_for_key_section(ictx, force_section, code);
bool use_mouse = MP_KEY_DEPENDS_ON_MOUSE_POS(code);
// First look whether a mouse section is capturing all mouse input
// exclusively (regardless of the active section stack order).
if (use_mouse && MP_KEY_IS_MOUSE_BTN_SINGLE(ictx->last_key_down)) {
struct cmd_bind *bind =
find_bind_for_key_section(ictx, ictx->mouse_section, code);
if (bind)
return bind;
}
struct cmd_bind *best_bind = NULL;
for (int i = ictx->num_active_sections - 1; i >= 0; i--) {
struct active_section *s = &ictx->active_sections[i];
struct cmd_bind *bind = find_bind_for_key_section(ictx, s->name, code);
if (bind) {
struct cmd_bind_section *bs = bind->owner;
if (!use_mouse || (bs->mouse_area_set && test_rect(&bs->mouse_area,
ictx->mouse_vo_x,
ictx->mouse_vo_y)))
{
if (!best_bind || (best_bind->is_builtin && !bind->is_builtin))
best_bind = bind;
}
}
if (s->flags & MP_INPUT_EXCLUSIVE)
break;
if (best_bind && (s->flags & MP_INPUT_ON_TOP))
break;
}
return best_bind;
}
static mp_cmd_t *get_cmd_from_keys(struct input_ctx *ictx, char *force_section,
int code)
{
if (ictx->opts->test)
return handle_test(ictx, code);
struct cmd_bind *cmd = find_any_bind_for_key(ictx, force_section, code);
if (cmd == NULL) {
if (code == MP_KEY_CLOSE_WIN)
return mp_input_parse_cmd_strv(ictx->log, (const char*[]){"quit", 0});
int msgl = MSGL_WARN;
if (MP_KEY_IS_MOUSE_MOVE(code))
msgl = MSGL_DEBUG;
char *key_buf = mp_input_get_key_combo_name(&code, 1);
MP_MSG(ictx, msgl, "No bind found for key '%s'.\n", key_buf);
talloc_free(key_buf);
return NULL;
}
mp_cmd_t *ret = mp_input_parse_cmd(ictx, bstr0(cmd->cmd), cmd->location);
if (ret) {
ret->input_section = cmd->owner->section;
if (mp_msg_test(ictx->log, MSGL_DEBUG)) {
char *keyname = mp_input_get_key_combo_name(&code, 1);
MP_DBG(ictx, "key '%s' -> '%s' in '%s'\n",
keyname, cmd->cmd, ret->input_section);
talloc_free(keyname);
}
ret->is_mouse_button = code & MP_KEY_EMIT_ON_UP;
} else {
char *key_buf = mp_input_get_key_combo_name(&code, 1);
MP_ERR(ictx, "Invalid command for bound key '%s': '%s'\n",
key_buf, cmd->cmd);
talloc_free(key_buf);
}
return ret;
}
static void update_mouse_section(struct input_ctx *ictx)
{
struct cmd_bind *bind =
find_any_bind_for_key(ictx, NULL, MP_KEY_MOUSE_MOVE);
char *new_section = bind ? bind->owner->section : "default";
char *old = ictx->mouse_section;
ictx->mouse_section = new_section;
if (strcmp(old, ictx->mouse_section) != 0) {
MP_DBG(ictx, "input: switch section %s -> %s\n",
old, ictx->mouse_section);
mp_input_queue_cmd(ictx, get_cmd_from_keys(ictx, old, MP_KEY_MOUSE_LEAVE));
}
}
// Called when the currently held-down key is released. This (usually) sends
// the a key-up version of the command associated with the keys that were held
// down.
// If the drop_current parameter is set to true, then don't send the key-up
// command. Unless we've already sent a key-down event, in which case the
// input receiver (the player) must get a key-up event, or it would get stuck
// thinking a key is still held down.
static void release_down_cmd(struct input_ctx *ictx, bool drop_current)
{
if (ictx->current_down_cmd && ictx->current_down_cmd->emit_on_up &&
(!drop_current || ictx->current_down_cmd->def->on_updown))
{
memset(ictx->key_history, 0, sizeof(ictx->key_history));
ictx->current_down_cmd->is_up = true;
mp_input_queue_cmd(ictx, ictx->current_down_cmd);
} else {
talloc_free(ictx->current_down_cmd);
}
ictx->current_down_cmd = NULL;
ictx->last_key_down = 0;
ictx->last_key_down_time = 0;
ictx->ar_state = -1;
update_mouse_section(ictx);
}
// We don't want the append to the command queue indefinitely, because that
// could lead to situations where recovery would take too long. On the other
// hand, don't drop commands that will abort playback.
static bool should_drop_cmd(struct input_ctx *ictx, struct mp_cmd *cmd)
{
struct cmd_queue *queue = &ictx->cmd_queue;
return queue_count_cmds(queue) >= ictx->opts->key_fifo_size &&
!mp_input_is_abort_cmd(cmd);
}
static struct mp_cmd *resolve_key(struct input_ctx *ictx, int code)
{
update_mouse_section(ictx);
struct mp_cmd *cmd = get_cmd_from_keys(ictx, NULL, code);
key_buf_add(ictx->key_history, code);
if (cmd && cmd->id != MP_CMD_IGNORE && !should_drop_cmd(ictx, cmd))
return cmd;
talloc_free(cmd);
return NULL;
}
static void interpret_key(struct input_ctx *ictx, int code, double scale)
{
int state = code & (MP_KEY_STATE_DOWN | MP_KEY_STATE_UP);
code = code & ~(unsigned)state;
if (mp_msg_test(ictx->log, MSGL_DEBUG)) {
char *key = mp_input_get_key_name(code);
MP_DBG(ictx, "key code=%#x '%s'%s%s\n",
code, key, (state & MP_KEY_STATE_DOWN) ? " down" : "",
(state & MP_KEY_STATE_UP) ? " up" : "");
talloc_free(key);
}
if (MP_KEY_DEPENDS_ON_MOUSE_POS(code & ~MP_KEY_MODIFIER_MASK)) {
ictx->mouse_event_counter++;
mp_input_wakeup(ictx);
}
struct mp_cmd *cmd = NULL;
if (state == MP_KEY_STATE_DOWN) {
// Protect against VOs which send STATE_DOWN with autorepeat
if (ictx->last_key_down == code)
return;
// Cancel current down-event (there can be only one)
release_down_cmd(ictx, true);
cmd = resolve_key(ictx, code);
if (cmd) {
cmd->is_up_down = true;
cmd->emit_on_up = (code & MP_KEY_EMIT_ON_UP) || cmd->def->on_updown;
ictx->current_down_cmd = mp_cmd_clone(cmd);
}
ictx->last_key_down = code;
ictx->last_key_down_time = mp_time_us();
ictx->ar_state = 0;
mp_input_wakeup(ictx); // possibly start timer for autorepeat
} else if (state == MP_KEY_STATE_UP) {
// Most VOs send RELEASE_ALL anyway
release_down_cmd(ictx, false);
} else {
// Press of key with no separate down/up events
// Mixing press events and up/down with the same key is not supported,
// and input sources shouldn't do this, but can happen anyway if
// multiple input sources interfere with each others.
if (ictx->last_key_down == code)
release_down_cmd(ictx, false);
cmd = resolve_key(ictx, code);
}
if (!cmd)
return;
// Don't emit a command on key-down if the key is designed to emit commands
// on key-up (like mouse buttons). Also, if the command specifically should
// be sent both on key down and key up, still emit the command.
if (cmd->emit_on_up && !cmd->def->on_updown) {
talloc_free(cmd);
return;
}
memset(ictx->key_history, 0, sizeof(ictx->key_history));
cmd->scale = scale;
mp_input_queue_cmd(ictx, cmd);
}
static void mp_input_feed_key(struct input_ctx *ictx, int code, double scale)
{
struct input_opts *opts = ictx->opts;
code = mp_normalize_keycode(code);
int unmod = code & ~MP_KEY_MODIFIER_MASK;
if (code == MP_INPUT_RELEASE_ALL) {
MP_DBG(ictx, "release all\n");
release_down_cmd(ictx, false);
return;
}
if (!opts->enable_mouse_movements && MP_KEY_IS_MOUSE(unmod))
return;
if (unmod == MP_KEY_MOUSE_LEAVE || unmod == MP_KEY_MOUSE_ENTER) {
update_mouse_section(ictx);
mp_input_queue_cmd(ictx, get_cmd_from_keys(ictx, NULL, code));
return;
}
double now = mp_time_sec();
// ignore system-doubleclick if we generate these events ourselves
if (opts->doubleclick_time && MP_KEY_IS_MOUSE_BTN_DBL(unmod))
return;
interpret_key(ictx, code, scale);
if (code & MP_KEY_STATE_DOWN) {
code &= ~MP_KEY_STATE_DOWN;
if (ictx->last_doubleclick_key_down == code &&
now - ictx->last_doubleclick_time < opts->doubleclick_time / 1000.0)
{
if (code >= MP_MOUSE_BTN0 && code <= MP_MOUSE_BTN2)
interpret_key(ictx, code - MP_MOUSE_BTN0 + MP_MOUSE_BTN0_DBL, 1);
}
ictx->last_doubleclick_key_down = code;
ictx->last_doubleclick_time = now;
}
}
void mp_input_put_key(struct input_ctx *ictx, int code)
{
input_lock(ictx);
mp_input_feed_key(ictx, code, 1);
input_unlock(ictx);
}
void mp_input_put_key_utf8(struct input_ctx *ictx, int mods, struct bstr t)
{
while (t.len) {
int code = bstr_decode_utf8(t, &t);
if (code < 0)
break;
mp_input_put_key(ictx, code | mods);
}
}
void mp_input_put_axis(struct input_ctx *ictx, int direction, double value)
{
if (value == 0.0)
return;
input_lock(ictx);
mp_input_feed_key(ictx, direction, value);
input_unlock(ictx);
}
void mp_input_set_mouse_transform(struct input_ctx *ictx, struct mp_rect *dst,
struct mp_rect *src)
{
input_lock(ictx);
ictx->mouse_mangle = dst || src;
if (ictx->mouse_mangle) {
ictx->mouse_dst = *dst;
ictx->mouse_src_mangle = !!src;
if (ictx->mouse_src_mangle)
ictx->mouse_src = *src;
}
input_unlock(ictx);
}
bool mp_input_mouse_enabled(struct input_ctx *ictx)
{
input_lock(ictx);
bool r = ictx->opts->enable_mouse_movements;
input_unlock(ictx);
return r;
}
bool mp_input_vo_keyboard_enabled(struct input_ctx *ictx)
{
input_lock(ictx);
bool r = ictx->opts->vo_key_input;
input_unlock(ictx);
return r;
}
void mp_input_set_mouse_pos(struct input_ctx *ictx, int x, int y)
{
input_lock(ictx);
MP_DBG(ictx, "mouse move %d/%d\n", x, y);
if (!ictx->opts->enable_mouse_movements) {
input_unlock(ictx);
return;
}
if (ictx->mouse_mangle) {
struct mp_rect *src = &ictx->mouse_src;
struct mp_rect *dst = &ictx->mouse_dst;
x = MPCLAMP(x, dst->x0, dst->x1) - dst->x0;
y = MPCLAMP(y, dst->y0, dst->y1) - dst->y0;
if (ictx->mouse_src_mangle) {
x = x * 1.0 / (dst->x1 - dst->x0) * (src->x1 - src->x0) + src->x0;
y = y * 1.0 / (dst->y1 - dst->y0) * (src->y1 - src->y0) + src->y0;
}
MP_DBG(ictx, "-> %d/%d\n", x, y);
}
ictx->mouse_event_counter++;
ictx->mouse_vo_x = x;
ictx->mouse_vo_y = y;
update_mouse_section(ictx);
struct mp_cmd *cmd = get_cmd_from_keys(ictx, NULL, MP_KEY_MOUSE_MOVE);
if (!cmd)
cmd = mp_input_parse_cmd(ictx, bstr0("ignore"), "<internal>");
if (cmd) {
cmd->mouse_move = true;
cmd->mouse_x = x;
cmd->mouse_y = y;
if (should_drop_cmd(ictx, cmd)) {
talloc_free(cmd);
} else {
// Coalesce with previous mouse move events (i.e. replace it)
struct mp_cmd *tail = queue_peek_tail(&ictx->cmd_queue);
if (tail && tail->mouse_move) {
queue_remove(&ictx->cmd_queue, tail);
talloc_free(tail);
}
mp_input_queue_cmd(ictx, cmd);
}
}
input_unlock(ictx);
}
unsigned int mp_input_get_mouse_event_counter(struct input_ctx *ictx)
{
// Make the frontend always display the mouse cursor (as long as it's not
// forced invisible) if mouse input is desired.
input_lock(ictx);
if (mp_input_test_mouse_active(ictx, ictx->mouse_x, ictx->mouse_y))
ictx->mouse_event_counter++;
int ret = ictx->mouse_event_counter;
input_unlock(ictx);
return ret;
}
// adjust min time to wait until next repeat event
static void adjust_max_wait_time(struct input_ctx *ictx, double *time)
{
struct input_opts *opts = ictx->opts;
if (ictx->last_key_down && opts->ar_rate > 0 && ictx->ar_state >= 0) {
*time = FFMIN(*time, 1.0 / opts->ar_rate);
*time = FFMIN(*time, opts->ar_delay / 1000.0);
}
}
static bool test_abort_cmd(struct input_ctx *ictx, struct mp_cmd *new)
{
if (!mp_input_is_maybe_abort_cmd(new))
return false;
if (mp_input_is_abort_cmd(new))
return true;
// Abort only if there are going to be at least 2 commands in the queue.
for (struct mp_cmd *cmd = ictx->cmd_queue.first; cmd; cmd = cmd->queue_next) {
if (mp_input_is_maybe_abort_cmd(cmd))
return true;
}
return false;
}
int mp_input_queue_cmd(struct input_ctx *ictx, mp_cmd_t *cmd)
{
input_lock(ictx);
if (cmd) {
if (ictx->cancel && test_abort_cmd(ictx, cmd))
mp_cancel_trigger(ictx->cancel);
queue_add_tail(&ictx->cmd_queue, cmd);
mp_input_wakeup(ictx);
}
input_unlock(ictx);
return 1;
}
static mp_cmd_t *check_autorepeat(struct input_ctx *ictx)
{
struct input_opts *opts = ictx->opts;
// No input : autorepeat ?
if (opts->ar_rate <= 0 || !ictx->current_down_cmd || !ictx->last_key_down ||
(ictx->last_key_down & MP_NO_REPEAT_KEY) ||
!mp_input_is_repeatable_cmd(ictx->current_down_cmd))
ictx->ar_state = -1; // disable
if (ictx->ar_state >= 0) {
int64_t t = mp_time_us();
if (ictx->last_ar + 2000000 < t)
ictx->last_ar = t;
// First time : wait delay
if (ictx->ar_state == 0
&& (t - ictx->last_key_down_time) >= opts->ar_delay * 1000)
{
ictx->ar_state = 1;
ictx->last_ar = ictx->last_key_down_time + opts->ar_delay * 1000;
// Then send rate / sec event
} else if (ictx->ar_state == 1
&& (t - ictx->last_ar) >= 1000000 / opts->ar_rate) {
ictx->last_ar += 1000000 / opts->ar_rate;
} else {
return NULL;
}
struct mp_cmd *ret = mp_cmd_clone(ictx->current_down_cmd);
ret->repeated = true;
return ret;
}
return NULL;
}
void mp_input_wait(struct input_ctx *ictx, double seconds)
{
input_lock(ictx);
adjust_max_wait_time(ictx, &seconds);
input_unlock(ictx);
while (sem_trywait(&ictx->wakeup) == 0)
seconds = -1;
if (seconds > 0) {
MP_STATS(ictx, "start sleep");
struct timespec ts =
mp_time_us_to_timespec(mp_add_timeout(mp_time_us(), seconds));
sem_timedwait(&ictx->wakeup, &ts);
MP_STATS(ictx, "end sleep");
}
}
void mp_input_wakeup_nolock(struct input_ctx *ictx)
{
// Some audio APIs discourage use of locking in their audio callback,
// and these audio callbacks happen to call mp_input_wakeup_nolock()
// when new data is needed. This is why we use semaphores here.
sem_post(&ictx->wakeup);
}
void mp_input_wakeup(struct input_ctx *ictx)
{
mp_input_wakeup_nolock(ictx);
}
mp_cmd_t *mp_input_read_cmd(struct input_ctx *ictx)
{
input_lock(ictx);
struct mp_cmd *ret = queue_remove_head(&ictx->cmd_queue);
if (!ret)
ret = check_autorepeat(ictx);
if (ret && ret->mouse_move) {
ictx->mouse_x = ret->mouse_x;
ictx->mouse_y = ret->mouse_y;
}
input_unlock(ictx);
return ret;
}
void mp_input_get_mouse_pos(struct input_ctx *ictx, int *x, int *y)
{
input_lock(ictx);
*x = ictx->mouse_x;
*y = ictx->mouse_y;
input_unlock(ictx);
}
// If name is NULL, return "default".
// Return a statically allocated name of the section (i.e. return value never
// gets deallocated).
static char *normalize_section(struct input_ctx *ictx, char *name)
{
return get_bind_section(ictx, bstr0(name))->section;
}
void mp_input_disable_section(struct input_ctx *ictx, char *name)
{
input_lock(ictx);
name = normalize_section(ictx, name);
// Remove old section, or make sure it's on top if re-enabled
for (int i = ictx->num_active_sections - 1; i >= 0; i--) {
struct active_section *as = &ictx->active_sections[i];
if (strcmp(as->name, name) == 0) {
MP_TARRAY_REMOVE_AT(ictx->active_sections,
ictx->num_active_sections, i);
}
}
input_unlock(ictx);
}
void mp_input_enable_section(struct input_ctx *ictx, char *name, int flags)
{
input_lock(ictx);
name = normalize_section(ictx, name);
mp_input_disable_section(ictx, name);
MP_DBG(ictx, "enable section '%s'\n", name);
if (ictx->num_active_sections < MAX_ACTIVE_SECTIONS) {
int top = ictx->num_active_sections;
if (!(flags & MP_INPUT_ON_TOP)) {
// insert before the first top entry
for (top = 0; top < ictx->num_active_sections; top++) {
if (ictx->active_sections[top].flags & MP_INPUT_ON_TOP)
break;
}
for (int n = ictx->num_active_sections; n > top; n--)
ictx->active_sections[n] = ictx->active_sections[n - 1];
}
ictx->active_sections[top] = (struct active_section){name, flags};
ictx->num_active_sections++;
}
MP_DBG(ictx, "active section stack:\n");
for (int n = 0; n < ictx->num_active_sections; n++) {
MP_DBG(ictx, " %s %d\n", ictx->active_sections[n].name,
ictx->active_sections[n].flags);
}
input_unlock(ictx);
}
void mp_input_disable_all_sections(struct input_ctx *ictx)
{
input_lock(ictx);
ictx->num_active_sections = 0;
input_unlock(ictx);
}
void mp_input_set_section_mouse_area(struct input_ctx *ictx, char *name,
int x0, int y0, int x1, int y1)
{
input_lock(ictx);
struct cmd_bind_section *s = get_bind_section(ictx, bstr0(name));
s->mouse_area = (struct mp_rect){x0, y0, x1, y1};
s->mouse_area_set = x0 != x1 && y0 != y1;
input_unlock(ictx);
}
static bool test_mouse(struct input_ctx *ictx, int x, int y, int rej_flags)
{
input_lock(ictx);
bool res = false;
for (int i = 0; i < ictx->num_active_sections; i++) {
struct active_section *as = &ictx->active_sections[i];
if (as->flags & rej_flags)
continue;
struct cmd_bind_section *s = get_bind_section(ictx, bstr0(as->name));
if (s->mouse_area_set && test_rect(&s->mouse_area, x, y)) {
res = true;
break;
}
}
input_unlock(ictx);
return res;
}
bool mp_input_test_mouse_active(struct input_ctx *ictx, int x, int y)
{
return test_mouse(ictx, x, y, MP_INPUT_ALLOW_HIDE_CURSOR);
}
bool mp_input_test_dragging(struct input_ctx *ictx, int x, int y)
{
input_lock(ictx);
bool r = !ictx->win_drag || test_mouse(ictx, x, y, MP_INPUT_ALLOW_VO_DRAGGING);
input_unlock(ictx);
return r;
}
static void bind_dealloc(struct cmd_bind *bind)
{
talloc_free(bind->cmd);
talloc_free(bind->location);
}
// builtin: if true, remove all builtin binds, else remove all user binds
static void remove_binds(struct cmd_bind_section *bs, bool builtin)
{
for (int n = bs->num_binds - 1; n >= 0; n--) {
if (bs->binds[n].is_builtin == builtin) {
bind_dealloc(&bs->binds[n]);
assert(bs->num_binds >= 1);
bs->binds[n] = bs->binds[bs->num_binds - 1];
bs->num_binds--;
}
}
}
void mp_input_define_section(struct input_ctx *ictx, char *name, char *location,
char *contents, bool builtin)
{
if (!name || !name[0])
return; // parse_config() changes semantics with restrict_section==empty
input_lock(ictx);
// Delete:
struct cmd_bind_section *bs = get_bind_section(ictx, bstr0(name));
remove_binds(bs, builtin);
if (contents) {
// Redefine:
parse_config(ictx, builtin, bstr0(contents), location, name);
} else {
// Disable:
mp_input_disable_section(ictx, name);
}
input_unlock(ictx);
}
static bool bind_matches_key(struct cmd_bind *bind, int num_keys, const int *keys)
{
if (bind->num_keys != num_keys)
return false;
for (int i = 0; i < num_keys; i++) {
if (bind->keys[i] != keys[i])
return false;
}
return true;
}
static void bind_keys(struct input_ctx *ictx, bool builtin, bstr section,
const int *keys, int num_keys, bstr command,
const char *loc)
{
struct cmd_bind_section *bs = get_bind_section(ictx, section);
struct cmd_bind *bind = NULL;
assert(num_keys <= MP_MAX_KEY_DOWN);
for (int n = 0; n < bs->num_binds; n++) {
struct cmd_bind *b = &bs->binds[n];
if (bind_matches_key(b, num_keys, keys) && b->is_builtin == builtin) {
bind = b;
break;
}
}
if (!bind) {
struct cmd_bind empty = {{0}};
MP_TARRAY_APPEND(bs, bs->binds, bs->num_binds, empty);
bind = &bs->binds[bs->num_binds - 1];
}
bind_dealloc(bind);
*bind = (struct cmd_bind) {
.cmd = bstrdup0(bs->binds, command),
.location = talloc_strdup(bs->binds, loc),
.owner = bs,
.is_builtin = builtin,
.num_keys = num_keys,
};
memcpy(bind->keys, keys, num_keys * sizeof(bind->keys[0]));
if (mp_msg_test(ictx->log, MSGL_DEBUG)) {
char *s = mp_input_get_key_combo_name(keys, num_keys);
MP_DBG(ictx, "add: section='%s' key='%s'%s cmd='%s' location='%s'\n",
bind->owner->section, s, bind->is_builtin ? " builtin" : "",
bind->cmd, bind->location);
talloc_free(s);
}
}
// restrict_section: every entry is forced to this section name
// if NULL, load normally and allow any sections
static int parse_config(struct input_ctx *ictx, bool builtin, bstr data,
const char *location, const char *restrict_section)
{
int n_binds = 0;
int line_no = 0;
char *cur_loc = NULL;
while (data.len) {
line_no++;
if (cur_loc)
talloc_free(cur_loc);
cur_loc = talloc_asprintf(NULL, "%s:%d", location, line_no);
bstr line = bstr_strip_linebreaks(bstr_getline(data, &data));
line = bstr_lstrip(line);
if (line.len == 0 || bstr_startswith0(line, "#"))
continue;
if (bstr_eatstart0(&line, "default-bindings ")) {
bstr orig = line;
bstr_split_tok(line, "#", &line, &(bstr){0});
line = bstr_strip(line);
if (bstr_equals0(line, "start")) {
builtin = true;
} else {
MP_ERR(ictx, "Broken line: %.*s at %s\n", BSTR_P(orig), cur_loc);
}
continue;
}
struct bstr command;
// Find the key name starting a line
struct bstr keyname = bstr_split(line, WHITESPACE, &command);
command = bstr_strip(command);
if (command.len == 0) {
MP_ERR(ictx, "Unfinished key binding: %.*s at %s\n", BSTR_P(line),
cur_loc);
continue;
}
char *name = bstrdup0(NULL, keyname);
int keys[MP_MAX_KEY_DOWN];
int num_keys = 0;
if (!mp_input_get_keys_from_string(name, MP_MAX_KEY_DOWN, &num_keys, keys))
{
talloc_free(name);
MP_ERR(ictx, "Unknown key '%.*s' at %s\n", BSTR_P(keyname), cur_loc);
continue;
}
talloc_free(name);
bstr section = bstr0(restrict_section);
if (!section.len) {
if (bstr_startswith0(command, "{")) {
int p = bstrchr(command, '}');
if (p != -1) {
section = bstr_strip(bstr_splice(command, 1, p));
command = bstr_lstrip(bstr_cut(command, p + 1));
}
}
}
bind_keys(ictx, builtin, section, keys, num_keys, command, cur_loc);
n_binds++;
// Print warnings if invalid commands are encountered.
talloc_free(mp_input_parse_cmd(ictx, command, cur_loc));
}
talloc_free(cur_loc);
return n_binds;
}
static int parse_config_file(struct input_ctx *ictx, char *file, bool warn)
{
int r = 0;
void *tmp = talloc_new(NULL);
stream_t *s = NULL;
file = mp_get_user_path(tmp, ictx->global, file);
s = stream_open(file, ictx->global);
if (!s) {
MP_ERR(ictx, "Can't open input config file %s.\n", file);
goto done;
}
stream_skip_bom(s);
bstr data = stream_read_complete(s, tmp, 1000000);
if (data.start) {
MP_VERBOSE(ictx, "Parsing input config file %s\n", file);
int num = parse_config(ictx, false, data, file, NULL);
MP_VERBOSE(ictx, "Input config file %s parsed: %d binds\n", file, num);
r = 1;
} else {
MP_ERR(ictx, "Error reading input config file %s\n", file);
}
done:
free_stream(s);
talloc_free(tmp);
return r;
}
struct input_ctx *mp_input_init(struct mpv_global *global)
{
struct input_ctx *ictx = talloc_ptrtype(NULL, ictx);
*ictx = (struct input_ctx){
.global = global,
.opts = talloc_zero(ictx, struct input_opts), // replaced later
.ar_state = -1,
.log = mp_log_new(ictx, global->log, "input"),
.mouse_section = "default",
};
if (sem_init(&ictx->wakeup, 0, 0)) {
MP_FATAL(ictx, "mpv doesn't work on systems without POSIX semaphores.\n");
abort();
}
mpthread_mutex_init_recursive(&ictx->mutex);
// Setup default section, so that it does nothing.
mp_input_enable_section(ictx, NULL, MP_INPUT_ALLOW_VO_DRAGGING |
MP_INPUT_ALLOW_HIDE_CURSOR);
return ictx;
}
void mp_input_load(struct input_ctx *ictx)
{
struct input_opts *input_conf =
m_sub_options_copy(ictx, &input_config, ictx->global->opts->input_opts);
talloc_free(ictx->opts);
ictx->opts = input_conf;
// "Uncomment" the default key bindings in etc/input.conf and add them.
// All lines that do not start with '# ' are parsed.
bstr builtin = bstr0(builtin_input_conf);
while (builtin.len) {
bstr line = bstr_getline(builtin, &builtin);
bstr_eatstart0(&line, "#");
if (!bstr_startswith0(line, " "))
parse_config(ictx, true, line, "<builtin>", NULL);
}
bool config_ok = false;
if (input_conf->config_file)
config_ok = parse_config_file(ictx, input_conf->config_file, true);
if (!config_ok && ictx->global->opts->load_config) {
// Try global conf dir
void *tmp = talloc_new(NULL);
char **files = mp_find_all_config_files(tmp, ictx->global, "input.conf");
for (int n = 0; files && files[n]; n++)
config_ok = config_ok | parse_config_file(ictx, files[n], false);
talloc_free(tmp);
}
if (!config_ok) {
MP_VERBOSE(ictx, "Falling back on default (hardcoded) input config\n");
}
if (input_conf->use_alt_gr) {
ictx->using_alt_gr = true;
}
#if HAVE_COCOA
if (input_conf->use_app_events) {
cocoa_start_event_monitor();
}
if (input_conf->use_appleremote) {
cocoa_init_apple_remote();
ictx->using_ar = true;
}
if (input_conf->use_media_keys) {
cocoa_init_media_keys();
ictx->using_cocoa_media_keys = true;
}
#endif
ictx->win_drag = ictx->global->opts->allow_win_drag;
#if defined(__MINGW32__)
if (ictx->global->opts->input_file && *ictx->global->opts->input_file)
#if HAVE_WAIO
mp_input_pipe_add(ictx, ictx->global->opts->input_file);
#else
MP_ERR(ictx, "Pipes not available.\n");
#endif
#endif
}
static void clear_queue(struct cmd_queue *queue)
{
while (queue->first) {
struct mp_cmd *item = queue->first;
queue_remove(queue, item);
talloc_free(item);
}
}
void mp_input_uninit(struct input_ctx *ictx)
{
if (!ictx)
return;
#if HAVE_COCOA
if (ictx->using_ar) {
cocoa_uninit_apple_remote();
}
if (ictx->using_cocoa_media_keys) {
cocoa_uninit_media_keys();
}
#endif
close_input_sources(ictx);
clear_queue(&ictx->cmd_queue);
talloc_free(ictx->current_down_cmd);
pthread_mutex_destroy(&ictx->mutex);
sem_destroy(&ictx->wakeup);
talloc_free(ictx);
}
void mp_input_set_cancel(struct input_ctx *ictx, struct mp_cancel *cancel)
{
input_lock(ictx);
ictx->cancel = cancel;
input_unlock(ictx);
}
bool mp_input_use_alt_gr(struct input_ctx *ictx)
{
return ictx->using_alt_gr;
}
struct mp_cmd *mp_input_parse_cmd(struct input_ctx *ictx, bstr str,
const char *location)
{
return mp_input_parse_cmd_(ictx->log, str, location);
}
void mp_input_run_cmd(struct input_ctx *ictx, const char **cmd)
{
mp_input_queue_cmd(ictx, mp_input_parse_cmd_strv(ictx->log, cmd));
}
struct mp_input_src_internal {
pthread_t thread;
bool thread_running;
int wakeup[2];
bool init_done;
char *cmd_buffer;
size_t cmd_buffer_size;
bool drop;
};
struct mp_input_src *mp_input_add_src(struct input_ctx *ictx)
{
input_lock(ictx);
if (ictx->num_sources == MP_MAX_SOURCES) {
input_unlock(ictx);
return NULL;
}
char name[80];
snprintf(name, sizeof(name), "#%d", ictx->num_sources + 1);
struct mp_input_src *src = talloc_ptrtype(NULL, src);
*src = (struct mp_input_src){
.global = ictx->global,
.log = mp_log_new(src, ictx->log, name),
.input_ctx = ictx,
.in = talloc(src, struct mp_input_src_internal),
};
*src->in = (struct mp_input_src_internal){
.wakeup = {-1, -1},
};
ictx->sources[ictx->num_sources++] = src;
input_unlock(ictx);
return src;
}
static void close_input_sources(struct input_ctx *ictx)
{
// To avoid lock-order issues, we first remove each source from the context,
// and then destroy it.
while (1) {
input_lock(ictx);
struct mp_input_src *src = ictx->num_sources ? ictx->sources[0] : NULL;
input_unlock(ictx);
if (!src)
break;
mp_input_src_kill(src);
}
}
void mp_input_src_kill(struct mp_input_src *src)
{
if (!src)
return;
struct input_ctx *ictx = src->input_ctx;
input_lock(ictx);
for (int n = 0; n < ictx->num_sources; n++) {
if (ictx->sources[n] == src) {
MP_TARRAY_REMOVE_AT(ictx->sources, ictx->num_sources, n);
input_unlock(ictx);
write(src->in->wakeup[1], &(char){0}, 1);
if (src->cancel)
src->cancel(src);
if (src->in->thread_running)
pthread_join(src->in->thread, NULL);
if (src->uninit)
src->uninit(src);
talloc_free(src);
return;
}
}
abort();
}
void mp_input_src_init_done(struct mp_input_src *src)
{
assert(!src->in->init_done);
assert(src->in->thread_running);
assert(pthread_equal(src->in->thread, pthread_self()));
src->in->init_done = true;
mp_rendezvous(&src->in->init_done, 0);
}
static void *input_src_thread(void *ptr)
{
void **args = ptr;
struct mp_input_src *src = args[0];
void (*loop_fn)(struct mp_input_src *src, void *ctx) = args[1];
void *ctx = args[2];
mpthread_set_name("input source");
src->in->thread_running = true;
loop_fn(src, ctx);
if (!src->in->init_done)
mp_rendezvous(&src->in->init_done, -1);
return NULL;
}
int mp_input_add_thread_src(struct input_ctx *ictx, void *ctx,
void (*loop_fn)(struct mp_input_src *src, void *ctx))
{
struct mp_input_src *src = mp_input_add_src(ictx);
if (!src)
return -1;
#ifndef __MINGW32__
// Always create for convenience.
if (mp_make_wakeup_pipe(src->in->wakeup) < 0) {
mp_input_src_kill(src);
return -1;
}
#endif
void *args[] = {src, loop_fn, ctx};
if (pthread_create(&src->in->thread, NULL, input_src_thread, args)) {
mp_input_src_kill(src);
return -1;
}
if (mp_rendezvous(&src->in->init_done, 0) < 0) {
mp_input_src_kill(src);
return -1;
}
return 0;
}
int mp_input_src_get_wakeup_fd(struct mp_input_src *src)
{
return src->in->wakeup[0];
}
#define CMD_BUFFER (4 * 4096)
void mp_input_src_feed_cmd_text(struct mp_input_src *src, char *buf, size_t len)
{
struct mp_input_src_internal *in = src->in;
if (!in->cmd_buffer)
in->cmd_buffer = talloc_size(in, CMD_BUFFER);
while (len) {
char *next = memchr(buf, '\n', len);
bool term = !!next;
next = next ? next + 1 : buf + len;
size_t copy = next - buf;
bool overflow = copy > CMD_BUFFER - in->cmd_buffer_size;
if (overflow || in->drop) {
in->cmd_buffer_size = 0;
in->drop = overflow || !term;
MP_WARN(src, "Dropping overlong line.\n");
} else {
memcpy(in->cmd_buffer + in->cmd_buffer_size, buf, copy);
in->cmd_buffer_size += copy;
buf += copy;
len -= copy;
if (term) {
bstr s = {in->cmd_buffer, in->cmd_buffer_size};
s = bstr_strip(s);
struct mp_cmd *cmd= mp_input_parse_cmd_(src->log, s, "<>");
if (cmd)
mp_input_queue_cmd(src->input_ctx, cmd);
in->cmd_buffer_size = 0;
}
}
}
}
void mp_input_set_repeat_info(struct input_ctx *ictx, int rate, int delay)
{
input_lock(ictx);
ictx->opts->ar_rate = rate;
ictx->opts->ar_delay = delay;
input_unlock(ictx);
}
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