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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/>.
*/
#ifndef MP_PARSE_COMMAND_H
#define MP_PARSE_COMMAND_H
#include <stdbool.h>
#include "misc/bstr.h"
#include "options/m_option.h"
#define MP_CMD_DEF_MAX_ARGS 9
#define MP_CMD_OPT_ARG M_OPT_OPTIONAL_PARAM
struct mp_log;
struct mp_cmd;
struct mpv_node;
struct mp_cmd_def {
const char *name; // user-visible name (as used in input.conf)
void (*handler)(void *ctx);
const struct m_option args[MP_CMD_DEF_MAX_ARGS];
const void *priv; // for free use by handler()
bool allow_auto_repeat; // react to repeated key events
bool on_updown; // always emit it on both up and down key events
bool vararg; // last argument can be given 0 to multiple times
bool scalable;
bool is_ignore;
bool is_noisy; // reduce log level
bool default_async; // default to MP_ASYNC flag if none set by user
// If you set this, handler() must ensure mp_cmd_ctx_complete() is called
// at some point (can be after handler() returns). If you don't set it, the
// common code will call mp_cmd_ctx_complete() when handler() returns.
// You must make sure that the core cannot disappear while you do work. The
// common code keeps the core referenced only until handler() returns.
bool exec_async;
// If set, handler() is run on a separate worker thread. This means you can
// use mp_core_[un]lock() to temporarily unlock and re-lock the core (while
// unlocked, you have no synchronized access to mpctx, but you can do long
// running operations without blocking playback or input handling).
bool spawn_thread;
// If this is set, mp_cmd_ctx.abort is set. Set this if handler() can do
// asynchronous abort of the command, and explicitly uses mp_cmd_ctx.abort.
// (Not setting it when it's not needed can save resources.)
bool can_abort;
// If playback ends, and the command is still running, an abort is
// automatically triggered.
bool abort_on_playback_end;
};
enum mp_cmd_flags {
MP_ON_OSD_NO = 0, // prefer not using OSD
MP_ON_OSD_AUTO = 1, // use default behavior of the specific command
MP_ON_OSD_BAR = 2, // force a bar, if applicable
MP_ON_OSD_MSG = 4, // force a message, if applicable
MP_EXPAND_PROPERTIES = 8, // expand strings as properties
MP_ALLOW_REPEAT = 16, // if used as keybinding, allow key repeat
// Exactly one of the following 2 bits is set. Which one is used depends on
// the command parser (prefixes and mp_cmd_def.default_async).
MP_ASYNC_CMD = 32, // do not wait for command to complete
MP_SYNC_CMD = 64, // block on command completion
MP_ON_OSD_FLAGS = MP_ON_OSD_NO | MP_ON_OSD_AUTO |
MP_ON_OSD_BAR | MP_ON_OSD_MSG,
};
// Arbitrary upper bound for sanity.
#define MP_CMD_MAX_ARGS 100
struct mp_cmd_arg {
const struct m_option *type;
union {
bool b;
int i;
int64_t i64;
float f;
double d;
char *s;
char **str_list;
void *p;
} v;
};
typedef struct mp_cmd {
char *name;
struct mp_cmd_arg *args;
int nargs;
int flags; // mp_cmd_flags bitfield
char *original;
char *desc; // (usually NULL since stripped away later)
char *input_section;
bool is_up_down : 1;
bool is_up : 1;
bool emit_on_up : 1;
bool is_mouse_button : 1;
bool repeated : 1;
bool mouse_move : 1;
int mouse_x, mouse_y;
struct mp_cmd *queue_next;
double scale; // for scaling numeric arguments
int scale_units;
const struct mp_cmd_def *def;
char *sender; // name of the client API user which sent this
char *key_name; // string representation of the key binding
char *key_text; // text if key is a text key
} mp_cmd_t;
extern const struct mp_cmd_def mp_cmds[];
extern const struct mp_cmd_def mp_cmd_list;
bool mp_input_is_repeatable_cmd(struct mp_cmd *cmd);
bool mp_input_is_scalable_cmd(struct mp_cmd *cmd);
void mp_print_cmd_list(struct mp_log *out);
// Parse text and return corresponding struct mp_cmd.
// The location parameter is for error messages.
struct mp_cmd *mp_input_parse_cmd_str(struct mp_log *log, bstr str,
const char *loc);
// Similar to mp_input_parse_cmd(), but takes a list of strings instead.
// Also, MP_ON_OSD_AUTO | MP_EXPAND_PROPERTIES are not set by default.
// Keep in mind that these functions (naturally) don't take multiple commands,
// i.e. a ";" argument does not start a new command.
struct mp_cmd *mp_input_parse_cmd_strv(struct mp_log *log, const char **argv);
struct mp_cmd *mp_input_parse_cmd_node(struct mp_log *log, struct mpv_node *node);
// After getting a command from mp_input_get_cmd you need to free it using this
// function
void mp_cmd_free(struct mp_cmd *cmd);
void mp_cmd_dump(struct mp_log *log, int msgl, char *header, struct mp_cmd *cmd);
// This creates a copy of a command (used by the auto repeat stuff).
struct mp_cmd *mp_cmd_clone(struct mp_cmd *cmd);
extern const struct m_option_type m_option_type_cycle_dir;
#endif
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