mpv/input/input.h

216 lines
8.4 KiB
C

/*
* This file is part of MPlayer.
*
* MPlayer 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.
*
* MPlayer 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 MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef MPLAYER_INPUT_H
#define MPLAYER_INPUT_H
#include <stdbool.h>
#include "bstr/bstr.h"
#include "cmd_list.h"
#include "cmd_parse.h"
// Error codes for the drivers
// An error occurred but we can continue
#define MP_INPUT_ERROR -1
// A fatal error occurred, this driver should be removed
#define MP_INPUT_DEAD -2
// No input was available
#define MP_INPUT_NOTHING -3
//! Input will be available if you try again
#define MP_INPUT_RETRY -4
// Key FIFO was full - release events may be lost, zero button-down status
#define MP_INPUT_RELEASE_ALL -5
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_PAUSING = 16, // pause after running command
MP_PAUSING_TOGGLE = 32, // toggle pause after running command
MP_ON_OSD_FLAGS = MP_ON_OSD_NO | MP_ON_OSD_AUTO |
MP_ON_OSD_BAR | MP_ON_OSD_MSG,
MP_PAUSING_FLAGS = MP_PAUSING | MP_PAUSING_TOGGLE,
};
enum mp_input_section_flags {
// If a key binding is not defined in the current section, do not search the
// other sections for it (like the default section). Instead, an unbound
// key warning will be printed.
MP_INPUT_EXCLUSIVE = 1,
// Let mp_input_test_dragging() return true, even if inside the mouse area.
MP_INPUT_ALLOW_VO_DRAGGING = 2,
// Don't force mouse pointer visible, even if inside the mouse area.
MP_INPUT_ALLOW_HIDE_CURSOR = 4,
};
struct input_ctx;
struct mp_log;
struct mp_cmd_arg {
const struct m_option *type;
union {
int i;
float f;
double d;
char *s;
void *p;
} v;
};
typedef struct mp_cmd {
int id;
char *name;
struct mp_cmd_arg args[MP_CMD_MAX_ARGS];
int nargs;
int flags; // mp_cmd_flags bitfield
bstr original;
char *input_section;
bool key_up_follows;
bool repeated;
bool mouse_move;
int mouse_x, mouse_y;
struct mp_cmd *queue_next;
double scale; // for scaling numeric arguments
const struct mp_cmd_def *def;
} mp_cmd_t;
/* Add a new command input source.
* "fd" is a file descriptor (use -1 if you don't use any fd)
* "select" tells whether to use select() on the fd to determine when to
* try reading.
* "read_cmd_func" is optional. It must return either text data or one of the
* MP_INPUT error codes above. For return values >= 0, it behaves like UNIX
* read() and returns the number of bytes copied to the dest buffer.
* "read_key_func" is optional. It returns either key codes (ASCII, keycodes.h),
* or MP_INPUT error codes.
* "close_func" will be called when closing. Can be NULL. Its return value
* is ignored (it's only there to allow using standard close() as the func).
* "ctx" is for free use, and is passed to the callbacks.
*/
int mp_input_add_fd(struct input_ctx *ictx, int fd, int select,
int read_cmd_func(void *ctx, int fd, char *dest, int size),
int read_key_func(void *ctx, int fd),
int close_func(void *ctx, int fd), void *ctx);
/* Can be passed as read_func for above function in order to read() from the FD.
*/
int input_default_read_cmd(void *ctx, int fd, char *buf, int l);
// Process keyboard input. code is a key code from keycodes.h, possibly
// with modifiers applied. MP_INPUT_RELEASE_ALL is also a valid value.
void mp_input_put_key(struct input_ctx *ictx, int code);
// Like mp_input_put_key(), but process all UTF-8 characters in the given
// string as key events.
void mp_input_put_key_utf8(struct input_ctx *ictx, int mods, struct bstr t);
// Process scrolling input. Support for precise scrolling. Scales the given
// scroll amount add multiplies it with the command (seeking, sub-delay, etc)
void mp_input_put_axis(struct input_ctx *ictx, int direction, double value);
// Update mouse position (in window coordinates).
void mp_input_set_mouse_pos(struct input_ctx *ictx, int x, int y);
void mp_input_get_mouse_pos(struct input_ctx *ictx, int *x, int *y);
// As for the cmd one you usually don't need this function.
void mp_input_rm_key_fd(struct input_ctx *ictx, int fd);
// Add a command to the command queue.
int mp_input_queue_cmd(struct input_ctx *ictx, struct mp_cmd *cmd);
/* Return next available command, or sleep up to "time" ms if none is
* available. If "peek_only" is true return a reference to the command
* but leave it queued.
*/
struct mp_cmd *mp_input_get_cmd(struct input_ctx *ictx, int time,
int peek_only);
// Parse text and return corresponding struct mp_cmd.
// The location parameter is for error messages.
struct mp_cmd *mp_input_parse_cmd(struct input_ctx *ictx, bstr str,
const char *location);
// Set current input section. The section is appended on top of the list of
// active sections, so its bindings are considered first. If the section was
// already active, it's moved to the top as well.
// name==NULL will behave as if name=="default"
// flags is a bitfield of enum mp_input_section_flags values
void mp_input_enable_section(struct input_ctx *ictx, char *name, int flags);
// Undo mp_input_enable_section().
// name==NULL will behave as if name=="default"
void mp_input_disable_section(struct input_ctx *ictx, char *name);
// Like mp_input_set_section(ictx, ..., 0) for all sections.
void mp_input_disable_all_sections(struct input_ctx *ictx);
// Set the contents of an input section.
// name: name of the section, for mp_input_set_section() etc.
// location: location string (like filename) for error reporting
// contents: list of keybindings, like input.conf
// a value of NULL deletes the section
// builtin: create as builtin section; this means if the user defines bindings
// using "{name}", they won't be ignored or overwritten - instead,
// they are preferred to the bindings defined with this call
// If the section already exists, its bindings are removed and replaced.
void mp_input_define_section(struct input_ctx *ictx, char *name, char *location,
char *contents, bool builtin);
// Define where on the screen the named input section should receive.
// Setting a rectangle of size 0 unsets the mouse area.
// A rectangle with negative size disables mouse input for this section.
void mp_input_set_section_mouse_area(struct input_ctx *ictx, char *name,
int x0, int y0, int x1, int y1);
// Used to detect mouse movement.
unsigned int mp_input_get_mouse_event_counter(struct input_ctx *ictx);
// Test whether there is any input section which wants to receive events.
// Note that the mouse event is always delivered, even if this returns false.
bool mp_input_test_mouse_active(struct input_ctx *ictx, int x, int y);
// Whether input.c wants mouse drag events at this mouse position. If this
// returns false, some VOs will initiate window dragging.
bool mp_input_test_dragging(struct input_ctx *ictx, int x, int y);
// Initialize the input system
struct mpv_global;
struct input_ctx *mp_input_init(struct mpv_global *global);
void mp_input_uninit(struct input_ctx *ictx);
// Wake up sleeping input loop from another thread.
void mp_input_wakeup(struct input_ctx *ictx);
// Interruptible usleep: (used by demux)
int mp_input_check_interrupt(struct input_ctx *ictx, int time);
// If this returns true, use Right Alt key as Alt Gr to produce special
// characters. If false, count Right Alt as the modifier Alt key.
bool mp_input_use_alt_gr(struct input_ctx *ictx);
extern int async_quit_request;
#endif /* MPLAYER_INPUT_H */