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elinks/src/terminal/event.h
2005-10-21 09:14:07 +02:00

139 lines
4.5 KiB
C

#ifndef EL__TERMINAL_EVENT_H
#define EL__TERMINAL_EVENT_H
#include "terminal/kbd.h"
#include "terminal/mouse.h"
struct terminal;
/* Some constants for the strings inside of {struct terminal}. */
#define MAX_TERM_LEN 32 /* this must be multiple of 8! (alignment problems) */
#define MAX_CWD_LEN 256 /* this must be multiple of 8! (alignment problems) */
enum term_event_type {
EVENT_INIT,
EVENT_KBD,
EVENT_MOUSE,
EVENT_REDRAW,
EVENT_RESIZE,
EVENT_ABORT,
};
struct term_event {
enum term_event_type ev;
union {
/* EVENT_MOUSE */
struct term_event_mouse mouse;
/* EVENT_KBD */
struct term_event_keyboard keyboard;
/* EVENT_INIT, EVENT_RESIZE, EVENT_REDRAW */
struct term_event_size {
int width, height;
} size;
} info;
};
static inline void
set_mouse_term_event(struct term_event *ev, int x, int y, unsigned int button)
{
memset(ev, 0, sizeof(*ev));
ev->ev = EVENT_MOUSE;
set_mouse(&ev->info.mouse, x, y, button);
}
static inline void
set_kbd_term_event(struct term_event *ev, int key, int modifier)
{
memset(ev, 0, sizeof(*ev));
ev->ev = EVENT_KBD;
kbd_set(&ev->info.keyboard, key, modifier);
}
static inline void
set_abort_term_event(struct term_event *ev)
{
memset(ev, 0, sizeof(*ev));
ev->ev = EVENT_ABORT;
}
static inline void
set_wh_term_event(struct term_event *ev, enum term_event_type type, int width, int height)
{
memset(ev, 0, sizeof(*ev));
ev->ev = type;
ev->info.size.width = width;
ev->info.size.height = height;
}
#define set_init_term_event(ev, w, h) set_wh_term_event(ev, EVENT_INIT, w, h)
#define set_resize_term_event(ev, w, h) set_wh_term_event(ev, EVENT_RESIZE, w, h)
#define set_redraw_term_event(ev, w, h) set_wh_term_event(ev, EVENT_REDRAW, w, h)
/* This holds the information used when handling the initial connection between
* a dumb and master terminal. */
/* XXX: We might be connecting to an older ELinks or an older ELinks is
* connecting to a newer ELinks master so for the sake of compatibility it
* would be unwise to just change the layout of the struct. If you do have to
* add new members add them at the bottom and use magic variables to
* distinguish them when decoding the terminal info. */
struct terminal_info {
struct term_event event; /* The EVENT_INIT event */
unsigned char name[MAX_TERM_LEN]; /* $TERM environment name */
unsigned char cwd[MAX_CWD_LEN]; /* Current working directory */
int system_env; /* System info (X, screen) */
int length; /* Length of @data member */
int session_info; /* Value depends on @magic */
int magic; /* Identity of the connector */
/* In the master that is connected to all bytes after @data will be
* interpreted as URI string information. */
unsigned char data[1];
};
/* The @data member has to have size of one for portability but it can be
* empty/zero so when reading and writing it we need to ignore the byte. */
#define TERMINAL_INFO_SIZE offsetof(struct terminal_info, data)
/* We use magic numbers to signal the identity of the dump client terminal.
* Magic numbers are composed by the INTERLINK_MAGIC() macro. It is a negative
* magic to be able to distinguish the oldest format from the newer ones. */
#define INTERLINK_MAGIC(major, minor) -(((major) << 8) + (minor))
#define INTERLINK_NORMAL_MAGIC INTERLINK_MAGIC(1, 0)
#define INTERLINK_REMOTE_MAGIC INTERLINK_MAGIC(1, 1)
void term_send_event(struct terminal *, struct term_event *);
void in_term(struct terminal *);
/* For keyboard events handling */
#define get_kbd_key(event) (kbd_get_key(&(event)->info.keyboard))
#define check_kbd_key(event, key) (kbd_key_is(&(event)->info.keyboard, (key)))
#define get_kbd_modifier(event) (kbd_get_modifier(&(event)->info.keyboard))
#define check_kbd_modifier(event, mod) (kbd_modifier_is(&(event)->info.keyboard, (mod)))
#define check_kbd_textinput_key(event) (get_kbd_key(event) >= ' ' && get_kbd_key(event) < 256 && check_kbd_modifier(event, KBD_MOD_NONE))
#define check_kbd_label_key(event) (get_kbd_key(event) > ' ' && get_kbd_key(event) < 256)
/* For mouse events handling */
#define get_mouse_action(event) (mouse_get_action(&(event)->info.mouse))
#define check_mouse_action(event, value) (mouse_action_is(&(event)->info.mouse, (value)))
#define get_mouse_button(event) (mouse_get_button(&(event)->info.mouse))
#define check_mouse_button(event, value) (mouse_button_is(&(event)->info.mouse, (value)))
#define check_mouse_wheel(event) (mouse_wheeling(&(event)->info.mouse))
#define check_mouse_position(event, box) \
mouse_is_in_box(&(event)->info.mouse, box)
#endif /* EL__TERMINAL_EVENT_H */