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

174 lines
3.4 KiB
C

/* Terminal windows stuff. */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "elinks.h"
#include "terminal/event.h"
#include "terminal/tab.h"
#include "terminal/terminal.h"
#include "terminal/window.h"
#include "util/error.h"
#include "util/memory.h"
void
redraw_from_window(struct window *win)
{
struct terminal *term = win->term;
struct term_event ev;
struct window *end = (struct window *) &term->windows;
if (term->redrawing != TREDRAW_READY) return;
set_redraw_term_event(&ev, term->width, term->height);
term->redrawing = TREDRAW_BUSY;
for (win = win->prev; win != end; win = win->prev) {
if (!inactive_tab(win))
win->handler(win, &ev);
}
term->redrawing = TREDRAW_READY;
}
void
redraw_below_window(struct window *win)
{
struct terminal *term = win->term;
struct term_event ev;
struct window *end = win;
enum term_redrawing_state saved_redraw_state = term->redrawing;
if (term->redrawing == TREDRAW_DELAYED) return;
set_redraw_term_event(&ev, term->width, term->height);
term->redrawing = TREDRAW_DELAYED;
for (win = term->windows.prev; win != end; win = win->prev) {
if (!inactive_tab(win))
win->handler(win, &ev);
}
term->redrawing = saved_redraw_state;
}
void
add_window(struct terminal *term, window_handler_T handler, void *data)
{
struct term_event ev;
struct window *win = mem_calloc(1, sizeof(*win));
if (!win) {
mem_free_if(data);
return;
}
win->handler = handler;
win->data = data; /* freed later in delete_window() */
win->term = term;
win->type = WINDOW_NORMAL;
add_at_pos((struct window *) &term->windows, win);
set_init_term_event(&ev, term->width, term->height);
win->handler(win, &ev);
}
void
delete_window(struct window *win)
{
struct term_event ev;
/* Updating the status when destroying tabs needs this before the win
* handler call. */
del_from_list(win);
set_abort_term_event(&ev);
win->handler(win, &ev);
mem_free_if(win->data);
redraw_terminal(win->term);
mem_free(win);
}
void
delete_window_ev(struct window *win, struct term_event *ev)
{
struct window *w;
w = list_has_next(win->term->windows, win) ? win->next : NULL;
delete_window(win);
if (!ev || !w) return;
/* If next is a tab send it to the current tab */
if (w->type == WINDOW_TAB) {
w = get_current_tab(w->term);
}
if (w) w->handler(w, ev);
}
void
get_parent_ptr(struct window *win, int *x, int *y)
{
struct window *parent = win->next;
if (parent->type == WINDOW_TAB)
parent = get_tab_by_number(win->term, win->term->current_tab);
if (parent) {
*x = parent->x;
*y = parent->y;
} else {
*x = 0;
*y = 0;
}
}
struct ewd {
void (*fn)(void *);
void *data;
unsigned int called_once:1;
};
static void
empty_window_handler(struct window *win, struct term_event *ev)
{
struct terminal *term = win->term;
struct ewd *ewd = win->data;
void (*fn)(void *) = ewd->fn;
void *data = ewd->data;
if (ewd->called_once) return;
switch (ev->ev) {
case EVENT_INIT:
case EVENT_RESIZE:
case EVENT_REDRAW:
get_parent_ptr(win, &win->x, &win->y);
return;
case EVENT_ABORT:
fn(data);
return;
case EVENT_KBD:
case EVENT_MOUSE:
/* Silence compiler warnings */
break;
}
ewd->called_once = 1;
delete_window(win);
fn(data);
term_send_event(term, ev);
}
void
add_empty_window(struct terminal *term, void (*fn)(void *), void *data)
{
struct ewd *ewd = mem_alloc(sizeof(*ewd));
if (!ewd) return;
ewd->fn = fn;
ewd->data = data;
ewd->called_once = 0;
add_window(term, empty_window_handler, ewd);
}