mirror of
https://github.com/rkd77/elinks.git
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139 lines
4.5 KiB
C
139 lines
4.5 KiB
C
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#ifndef EL__TERMINAL_EVENT_H
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#define EL__TERMINAL_EVENT_H
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#include "terminal/kbd.h"
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#include "terminal/mouse.h"
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struct terminal;
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/* Some constants for the strings inside of {struct terminal}. */
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#define MAX_TERM_LEN 32 /* this must be multiple of 8! (alignment problems) */
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#define MAX_CWD_LEN 256 /* this must be multiple of 8! (alignment problems) */
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enum term_event_type {
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EVENT_INIT,
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EVENT_KBD,
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EVENT_MOUSE,
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EVENT_REDRAW,
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EVENT_RESIZE,
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EVENT_ABORT,
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};
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struct term_event {
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enum term_event_type ev;
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union {
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/* EVENT_MOUSE */
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struct term_event_mouse mouse;
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/* EVENT_KBD */
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struct term_event_keyboard keyboard;
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/* EVENT_INIT, EVENT_RESIZE, EVENT_REDRAW */
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struct term_event_size {
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int width, height;
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} size;
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} info;
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};
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static inline void
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set_mouse_term_event(struct term_event *ev, int x, int y, unsigned int button)
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{
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memset(ev, 0, sizeof(*ev));
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ev->ev = EVENT_MOUSE;
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set_mouse(&ev->info.mouse, x, y, button);
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}
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static inline void
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set_kbd_term_event(struct term_event *ev, int key, int modifier)
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{
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memset(ev, 0, sizeof(*ev));
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ev->ev = EVENT_KBD;
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kbd_set(&ev->info.keyboard, key, modifier);
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}
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static inline void
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set_abort_term_event(struct term_event *ev)
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{
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memset(ev, 0, sizeof(*ev));
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ev->ev = EVENT_ABORT;
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}
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static inline void
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set_wh_term_event(struct term_event *ev, enum term_event_type type, int width, int height)
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{
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memset(ev, 0, sizeof(*ev));
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ev->ev = type;
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ev->info.size.width = width;
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ev->info.size.height = height;
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}
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#define set_init_term_event(ev, w, h) set_wh_term_event(ev, EVENT_INIT, w, h)
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#define set_resize_term_event(ev, w, h) set_wh_term_event(ev, EVENT_RESIZE, w, h)
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#define set_redraw_term_event(ev, w, h) set_wh_term_event(ev, EVENT_REDRAW, w, h)
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/* This holds the information used when handling the initial connection between
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* a dumb and master terminal. */
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/* XXX: We might be connecting to an older ELinks or an older ELinks is
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* connecting to a newer ELinks master so for the sake of compatibility it
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* would be unwise to just change the layout of the struct. If you do have to
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* add new members add them at the bottom and use magic variables to
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* distinguish them when decoding the terminal info. */
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struct terminal_info {
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struct term_event event; /* The EVENT_INIT event */
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unsigned char name[MAX_TERM_LEN]; /* $TERM environment name */
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unsigned char cwd[MAX_CWD_LEN]; /* Current working directory */
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int system_env; /* System info (X, screen) */
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int length; /* Length of @data member */
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int session_info; /* Value depends on @magic */
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int magic; /* Identity of the connector */
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/* In the master that is connected to all bytes after @data will be
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* interpreted as URI string information. */
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unsigned char data[1];
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};
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/* The @data member has to have size of one for portability but it can be
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* empty/zero so when reading and writing it we need to ignore the byte. */
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#define TERMINAL_INFO_SIZE offsetof(struct terminal_info, data)
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/* We use magic numbers to signal the identity of the dump client terminal.
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* Magic numbers are composed by the INTERLINK_MAGIC() macro. It is a negative
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* magic to be able to distinguish the oldest format from the newer ones. */
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#define INTERLINK_MAGIC(major, minor) -(((major) << 8) + (minor))
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#define INTERLINK_NORMAL_MAGIC INTERLINK_MAGIC(1, 0)
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#define INTERLINK_REMOTE_MAGIC INTERLINK_MAGIC(1, 1)
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void term_send_event(struct terminal *, struct term_event *);
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void in_term(struct terminal *);
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/* For keyboard events handling */
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#define get_kbd_key(event) (kbd_get_key(&(event)->info.keyboard))
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#define check_kbd_key(event, key) (kbd_key_is(&(event)->info.keyboard, (key)))
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#define get_kbd_modifier(event) (kbd_get_modifier(&(event)->info.keyboard))
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#define check_kbd_modifier(event, mod) (kbd_modifier_is(&(event)->info.keyboard, (mod)))
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#define check_kbd_textinput_key(event) (get_kbd_key(event) >= ' ' && get_kbd_key(event) < 256 && check_kbd_modifier(event, KBD_MOD_NONE))
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#define check_kbd_label_key(event) (get_kbd_key(event) > ' ' && get_kbd_key(event) < 256)
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/* For mouse events handling */
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#define get_mouse_action(event) (mouse_get_action(&(event)->info.mouse))
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#define check_mouse_action(event, value) (mouse_action_is(&(event)->info.mouse, (value)))
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#define get_mouse_button(event) (mouse_get_button(&(event)->info.mouse))
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#define check_mouse_button(event, value) (mouse_button_is(&(event)->info.mouse, (value)))
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#define check_mouse_wheel(event) (mouse_wheeling(&(event)->info.mouse))
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#define check_mouse_position(event, box) \
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mouse_is_in_box(&(event)->info.mouse, box)
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#endif /* EL__TERMINAL_EVENT_H */
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