Retab sighandler.c
Axel Wagner
Michael Stapelberg
parent
fb6d117c42
commit
6ec468ba1e
|
|
@ -1,5 +1,5 @@
|
|||
/*
|
||||
* vim:ts=8:expandtab
|
||||
* vim:ts=4:sw=4:expandtab
|
||||
*
|
||||
* i3 - an improved dynamic tiling window manager
|
||||
*
|
||||
|
|
|
|||
228
src/sighandler.c
228
src/sighandler.c
|
|
@ -1,5 +1,5 @@
|
|||
/*
|
||||
* vim:ts=8:expandtab
|
||||
* vim:ts=4:sw=4:expandtab
|
||||
*
|
||||
* i3 - an improved dynamic tiling window manager
|
||||
*
|
||||
|
|
@ -38,11 +38,11 @@ static xcb_pixmap_t pixmap;
|
|||
static int raised_signal;
|
||||
|
||||
static char *crash_text[] = {
|
||||
"i3 just crashed.",
|
||||
"To debug this problem, either attach gdb now",
|
||||
"or press 'e' to exit and get a core-dump.",
|
||||
"If you want to keep your session,",
|
||||
"press 'r' to restart i3 in-place."
|
||||
"i3 just crashed.",
|
||||
"To debug this problem, either attach gdb now",
|
||||
"or press 'e' to exit and get a core-dump.",
|
||||
"If you want to keep your session,",
|
||||
"press 'r' to restart i3 in-place."
|
||||
};
|
||||
static int crash_text_longest = 1;
|
||||
|
||||
|
|
@ -51,31 +51,31 @@ static int crash_text_longest = 1;
|
|||
*
|
||||
*/
|
||||
static int sig_draw_window(xcb_window_t win, int width, int height, int font_height) {
|
||||
/* re-draw the background */
|
||||
xcb_rectangle_t border = { 0, 0, width, height},
|
||||
inner = { 2, 2, width - 4, height - 4};
|
||||
xcb_change_gc_single(conn, pixmap_gc, XCB_GC_FOREGROUND, get_colorpixel("#FF0000"));
|
||||
xcb_poly_fill_rectangle(conn, pixmap, pixmap_gc, 1, &border);
|
||||
xcb_change_gc_single(conn, pixmap_gc, XCB_GC_FOREGROUND, get_colorpixel("#000000"));
|
||||
xcb_poly_fill_rectangle(conn, pixmap, pixmap_gc, 1, &inner);
|
||||
/* re-draw the background */
|
||||
xcb_rectangle_t border = { 0, 0, width, height},
|
||||
inner = { 2, 2, width - 4, height - 4};
|
||||
xcb_change_gc_single(conn, pixmap_gc, XCB_GC_FOREGROUND, get_colorpixel("#FF0000"));
|
||||
xcb_poly_fill_rectangle(conn, pixmap, pixmap_gc, 1, &border);
|
||||
xcb_change_gc_single(conn, pixmap_gc, XCB_GC_FOREGROUND, get_colorpixel("#000000"));
|
||||
xcb_poly_fill_rectangle(conn, pixmap, pixmap_gc, 1, &inner);
|
||||
|
||||
/* restore font color */
|
||||
xcb_change_gc_single(conn, pixmap_gc, XCB_GC_FOREGROUND, get_colorpixel("#FFFFFF"));
|
||||
/* restore font color */
|
||||
xcb_change_gc_single(conn, pixmap_gc, XCB_GC_FOREGROUND, get_colorpixel("#FFFFFF"));
|
||||
|
||||
for (int i = 0; i < sizeof(crash_text) / sizeof(char*); i++) {
|
||||
int text_len = strlen(crash_text[i]);
|
||||
char *full_text = convert_utf8_to_ucs2(crash_text[i], &text_len);
|
||||
xcb_image_text_16(conn, text_len, pixmap, pixmap_gc, 8 /* X */,
|
||||
3 + (i + 1) * font_height /* Y = baseline of font */,
|
||||
(xcb_char2b_t*)full_text);
|
||||
free(full_text);
|
||||
}
|
||||
for (int i = 0; i < sizeof(crash_text) / sizeof(char*); i++) {
|
||||
int text_len = strlen(crash_text[i]);
|
||||
char *full_text = convert_utf8_to_ucs2(crash_text[i], &text_len);
|
||||
xcb_image_text_16(conn, text_len, pixmap, pixmap_gc, 8 /* X */,
|
||||
3 + (i + 1) * font_height /* Y = baseline of font */,
|
||||
(xcb_char2b_t*)full_text);
|
||||
free(full_text);
|
||||
}
|
||||
|
||||
/* Copy the contents of the pixmap to the real window */
|
||||
xcb_copy_area(conn, pixmap, win, pixmap_gc, 0, 0, 0, 0, width, height);
|
||||
xcb_flush(conn);
|
||||
/* Copy the contents of the pixmap to the real window */
|
||||
xcb_copy_area(conn, pixmap, win, pixmap_gc, 0, 0, 0, 0, width, height);
|
||||
xcb_flush(conn);
|
||||
|
||||
return 1;
|
||||
return 1;
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
@ -83,25 +83,25 @@ static int sig_draw_window(xcb_window_t win, int width, int height, int font_hei
|
|||
*
|
||||
*/
|
||||
static int sig_handle_key_press(void *ignored, xcb_connection_t *conn, xcb_key_press_event_t *event) {
|
||||
uint16_t state = event->state;
|
||||
uint16_t state = event->state;
|
||||
|
||||
/* Apparantly, after activating numlock once, the numlock modifier
|
||||
* stays turned on (use xev(1) to verify). So, to resolve useful
|
||||
* keysyms, we remove the numlock flag from the event state */
|
||||
state &= ~xcb_numlock_mask;
|
||||
/* Apparantly, after activating numlock once, the numlock modifier
|
||||
* stays turned on (use xev(1) to verify). So, to resolve useful
|
||||
* keysyms, we remove the numlock flag from the event state */
|
||||
state &= ~xcb_numlock_mask;
|
||||
|
||||
xcb_keysym_t sym = xcb_key_press_lookup_keysym(keysyms, event, state);
|
||||
xcb_keysym_t sym = xcb_key_press_lookup_keysym(keysyms, event, state);
|
||||
|
||||
if (sym == 'e') {
|
||||
DLOG("User issued exit-command, raising error again.\n");
|
||||
raise(raised_signal);
|
||||
exit(1);
|
||||
}
|
||||
if (sym == 'e') {
|
||||
DLOG("User issued exit-command, raising error again.\n");
|
||||
raise(raised_signal);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
if (sym == 'r')
|
||||
i3_restart();
|
||||
if (sym == 'r')
|
||||
i3_restart();
|
||||
|
||||
return 1;
|
||||
return 1;
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
@ -109,37 +109,37 @@ static int sig_handle_key_press(void *ignored, xcb_connection_t *conn, xcb_key_p
|
|||
*
|
||||
*/
|
||||
static xcb_window_t open_input_window(xcb_connection_t *conn, Rect screen_rect, uint32_t width, uint32_t height) {
|
||||
xcb_window_t root = xcb_setup_roots_iterator(xcb_get_setup(conn)).data->root;
|
||||
xcb_window_t win = xcb_generate_id(conn);
|
||||
xcb_window_t root = xcb_setup_roots_iterator(xcb_get_setup(conn)).data->root;
|
||||
xcb_window_t win = xcb_generate_id(conn);
|
||||
|
||||
uint32_t mask = 0;
|
||||
uint32_t values[2];
|
||||
uint32_t mask = 0;
|
||||
uint32_t values[2];
|
||||
|
||||
mask |= XCB_CW_BACK_PIXEL;
|
||||
values[0] = 0;
|
||||
mask |= XCB_CW_BACK_PIXEL;
|
||||
values[0] = 0;
|
||||
|
||||
mask |= XCB_CW_OVERRIDE_REDIRECT;
|
||||
values[1] = 1;
|
||||
mask |= XCB_CW_OVERRIDE_REDIRECT;
|
||||
values[1] = 1;
|
||||
|
||||
/* center each popup on the specified screen */
|
||||
uint32_t x = screen_rect.x + ((screen_rect.width / 2) - (width / 2)),
|
||||
y = screen_rect.y + ((screen_rect.height / 2) - (height / 2));
|
||||
/* center each popup on the specified screen */
|
||||
uint32_t x = screen_rect.x + ((screen_rect.width / 2) - (width / 2)),
|
||||
y = screen_rect.y + ((screen_rect.height / 2) - (height / 2));
|
||||
|
||||
xcb_create_window(conn,
|
||||
XCB_COPY_FROM_PARENT,
|
||||
win, /* the window id */
|
||||
root, /* parent == root */
|
||||
x, y, width, height, /* dimensions */
|
||||
0, /* border = 0, we draw our own */
|
||||
XCB_WINDOW_CLASS_INPUT_OUTPUT,
|
||||
XCB_WINDOW_CLASS_COPY_FROM_PARENT, /* copy visual from parent */
|
||||
mask,
|
||||
values);
|
||||
xcb_create_window(conn,
|
||||
XCB_COPY_FROM_PARENT,
|
||||
win, /* the window id */
|
||||
root, /* parent == root */
|
||||
x, y, width, height, /* dimensions */
|
||||
0, /* border = 0, we draw our own */
|
||||
XCB_WINDOW_CLASS_INPUT_OUTPUT,
|
||||
XCB_WINDOW_CLASS_COPY_FROM_PARENT, /* copy visual from parent */
|
||||
mask,
|
||||
values);
|
||||
|
||||
/* Map the window (= make it visible) */
|
||||
xcb_map_window(conn, win);
|
||||
/* Map the window (= make it visible) */
|
||||
xcb_map_window(conn, win);
|
||||
|
||||
return win;
|
||||
return win;
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
@ -149,60 +149,60 @@ static xcb_window_t open_input_window(xcb_connection_t *conn, Rect screen_rect,
|
|||
*
|
||||
*/
|
||||
void handle_signal(int sig, siginfo_t *info, void *data) {
|
||||
DLOG("i3 crashed. SIG: %d\n", sig);
|
||||
DLOG("i3 crashed. SIG: %d\n", sig);
|
||||
|
||||
struct sigaction action;
|
||||
action.sa_handler = SIG_DFL;
|
||||
sigaction(sig, &action, NULL);
|
||||
raised_signal = sig;
|
||||
struct sigaction action;
|
||||
action.sa_handler = SIG_DFL;
|
||||
sigaction(sig, &action, NULL);
|
||||
raised_signal = sig;
|
||||
|
||||
/* setup event handler for key presses */
|
||||
xcb_event_handlers_t sig_evenths;
|
||||
memset(&sig_evenths, 0, sizeof(xcb_event_handlers_t));
|
||||
xcb_event_handlers_init(conn, &sig_evenths);
|
||||
xcb_event_set_key_press_handler(&sig_evenths, sig_handle_key_press, NULL);
|
||||
/* setup event handler for key presses */
|
||||
xcb_event_handlers_t sig_evenths;
|
||||
memset(&sig_evenths, 0, sizeof(xcb_event_handlers_t));
|
||||
xcb_event_handlers_init(conn, &sig_evenths);
|
||||
xcb_event_set_key_press_handler(&sig_evenths, sig_handle_key_press, NULL);
|
||||
|
||||
i3Font *font = load_font(conn, config.font);
|
||||
i3Font *font = load_font(conn, config.font);
|
||||
|
||||
/* width and height of the popup window, so that the text fits in */
|
||||
int crash_text_num = sizeof(crash_text) / sizeof(char*);
|
||||
int height = 13 + (crash_text_num * font->height);
|
||||
/* width and height of the popup window, so that the text fits in */
|
||||
int crash_text_num = sizeof(crash_text) / sizeof(char*);
|
||||
int height = 13 + (crash_text_num * font->height);
|
||||
|
||||
/* calculate width for longest text */
|
||||
int text_len = strlen(crash_text[crash_text_longest]);
|
||||
char *longest_text = convert_utf8_to_ucs2(crash_text[crash_text_longest], &text_len);
|
||||
int font_width = predict_text_width(conn, config.font, longest_text, text_len);
|
||||
int width = font_width + 20;
|
||||
/* calculate width for longest text */
|
||||
int text_len = strlen(crash_text[crash_text_longest]);
|
||||
char *longest_text = convert_utf8_to_ucs2(crash_text[crash_text_longest], &text_len);
|
||||
int font_width = predict_text_width(conn, config.font, longest_text, text_len);
|
||||
int width = font_width + 20;
|
||||
|
||||
/* Open a popup window on each virtual screen */
|
||||
Output *screen;
|
||||
xcb_window_t win;
|
||||
TAILQ_FOREACH(screen, &outputs, outputs) {
|
||||
if (!screen->active)
|
||||
continue;
|
||||
win = open_input_window(conn, screen->rect, width, height);
|
||||
/* Open a popup window on each virtual screen */
|
||||
Output *screen;
|
||||
xcb_window_t win;
|
||||
TAILQ_FOREACH(screen, &outputs, outputs) {
|
||||
if (!screen->active)
|
||||
continue;
|
||||
win = open_input_window(conn, screen->rect, width, height);
|
||||
|
||||
/* Create pixmap */
|
||||
pixmap = xcb_generate_id(conn);
|
||||
pixmap_gc = xcb_generate_id(conn);
|
||||
xcb_create_pixmap(conn, root_depth, pixmap, win, width, height);
|
||||
xcb_create_gc(conn, pixmap_gc, pixmap, 0, 0);
|
||||
/* Create pixmap */
|
||||
pixmap = xcb_generate_id(conn);
|
||||
pixmap_gc = xcb_generate_id(conn);
|
||||
xcb_create_pixmap(conn, root_depth, pixmap, win, width, height);
|
||||
xcb_create_gc(conn, pixmap_gc, pixmap, 0, 0);
|
||||
|
||||
/* Create graphics context */
|
||||
xcb_change_gc_single(conn, pixmap_gc, XCB_GC_FONT, font->id);
|
||||
/* Create graphics context */
|
||||
xcb_change_gc_single(conn, pixmap_gc, XCB_GC_FONT, font->id);
|
||||
|
||||
/* Grab the keyboard to get all input */
|
||||
xcb_grab_keyboard(conn, false, win, XCB_CURRENT_TIME, XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC);
|
||||
/* Grab the keyboard to get all input */
|
||||
xcb_grab_keyboard(conn, false, win, XCB_CURRENT_TIME, XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC);
|
||||
|
||||
/* Grab the cursor inside the popup */
|
||||
xcb_grab_pointer(conn, false, win, XCB_NONE, XCB_GRAB_MODE_ASYNC,
|
||||
XCB_GRAB_MODE_ASYNC, win, XCB_NONE, XCB_CURRENT_TIME);
|
||||
/* Grab the cursor inside the popup */
|
||||
xcb_grab_pointer(conn, false, win, XCB_NONE, XCB_GRAB_MODE_ASYNC,
|
||||
XCB_GRAB_MODE_ASYNC, win, XCB_NONE, XCB_CURRENT_TIME);
|
||||
|
||||
sig_draw_window(win, width, height, font->height);
|
||||
xcb_flush(conn);
|
||||
}
|
||||
sig_draw_window(win, width, height, font->height);
|
||||
xcb_flush(conn);
|
||||
}
|
||||
|
||||
xcb_event_wait_for_event_loop(&sig_evenths);
|
||||
xcb_event_wait_for_event_loop(&sig_evenths);
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
@ -210,13 +210,13 @@ void handle_signal(int sig, siginfo_t *info, void *data) {
|
|||
*
|
||||
*/
|
||||
void setup_signal_handler() {
|
||||
struct sigaction action;
|
||||
struct sigaction action;
|
||||
|
||||
action.sa_sigaction = handle_signal;
|
||||
action.sa_flags = SA_NODEFER | SA_RESETHAND | SA_SIGINFO;
|
||||
sigemptyset(&action.sa_mask);
|
||||
action.sa_sigaction = handle_signal;
|
||||
action.sa_flags = SA_NODEFER | SA_RESETHAND | SA_SIGINFO;
|
||||
sigemptyset(&action.sa_mask);
|
||||
|
||||
if (sigaction(SIGSEGV, &action, NULL) == -1 ||
|
||||
sigaction(SIGFPE, &action, NULL) == -1)
|
||||
ELOG("Could not setup signal handler");
|
||||
if (sigaction(SIGSEGV, &action, NULL) == -1 ||
|
||||
sigaction(SIGFPE, &action, NULL) == -1)
|
||||
ELOG("Could not setup signal handler");
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue