#include <xcb/xcb_image.h>
#include <xcb/xcb_atom.h>
#include <xcb/xcb_aux.h>
-#include <xcb/composite.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <assert.h>
#include <err.h>
#include <time.h>
+#include <sys/time.h>
#include "cursors.h"
#include "unlock_indicator.h"
uint32_t mask = 0;
uint32_t values[3];
xcb_window_t win = xcb_generate_id(conn);
- xcb_window_t parent_win = scr->root;
-
- /* Check whether the composite extension is available */
- const xcb_query_extension_reply_t *extension_query = NULL;
- xcb_generic_error_t *error = NULL;
- xcb_composite_get_overlay_window_cookie_t cookie;
- xcb_composite_get_overlay_window_reply_t *composite_reply = NULL;
-
- extension_query = xcb_get_extension_data(conn, &xcb_composite_id);
- if (extension_query && extension_query->present) {
- /* When composition is used, we need to use the composite overlay
- * window instead of the normal root window to be able to cover
- * composited windows */
- cookie = xcb_composite_get_overlay_window(conn, scr->root);
- composite_reply = xcb_composite_get_overlay_window_reply(conn, cookie, &error);
-
- if (!error && composite_reply) {
- parent_win = composite_reply->overlay_win;
- }
-
- free(composite_reply);
- free(error);
- }
if (pixmap == XCB_NONE) {
mask |= XCB_CW_BACK_PIXEL;
xcb_create_window(conn,
XCB_COPY_FROM_PARENT,
- win, /* the window id */
- parent_win,
+ win, /* the window id */
+ scr->root, /* parent == root */
0, 0,
scr->width_in_pixels,
scr->height_in_pixels, /* dimensions */
strlen(name),
name);
+ xcb_change_property(conn,
+ XCB_PROP_MODE_REPLACE,
+ win,
+ XCB_ATOM_WM_CLASS,
+ XCB_ATOM_STRING,
+ 8,
+ 2 * (strlen("i3lock") + 1),
+ "i3lock\0i3lock\0");
+
/* Map the window (= make it visible) */
xcb_map_window(conn, win);
}
/*
- * Repeatedly tries to grab pointer and keyboard (up to 10000 times).
+ * Repeatedly tries to grab pointer and keyboard (up to the specified number of
+ * tries).
+ *
+ * Returns true if the grab succeeded, false if not.
*
*/
-void grab_pointer_and_keyboard(xcb_connection_t *conn, xcb_screen_t *screen, xcb_cursor_t cursor) {
+bool grab_pointer_and_keyboard(xcb_connection_t *conn, xcb_screen_t *screen, xcb_cursor_t cursor, int tries) {
xcb_grab_pointer_cookie_t pcookie;
xcb_grab_pointer_reply_t *preply;
xcb_grab_keyboard_cookie_t kcookie;
xcb_grab_keyboard_reply_t *kreply;
- int tries = 10000;
+ const suseconds_t screen_redraw_timeout = 100000; /* 100ms */
/* Using few variables to trigger a redraw_screen() if too many tries */
bool redrawn = false;
- time_t start = clock();
+ struct timeval start;
+ if (gettimeofday(&start, NULL) == -1) {
+ err(EXIT_FAILURE, "gettimeofday");
+ }
while (tries-- > 0) {
pcookie = xcb_grab_pointer(
break;
}
+ /* In case the grab failed, we still need to free the reply */
+ free(preply);
+
/* Make this quite a bit slower */
usleep(50);
- /* Measure elapsed time and trigger a screen redraw if elapsed > 250000 */
+ struct timeval now;
+ if (gettimeofday(&now, NULL) == -1) {
+ err(EXIT_FAILURE, "gettimeofday");
+ }
+
+ struct timeval elapsed;
+ timersub(&now, &start, &elapsed);
+
if (!redrawn &&
(tries % 100) == 0 &&
- (clock() - start) > 250000) {
+ elapsed.tv_usec >= screen_redraw_timeout) {
redraw_screen();
redrawn = true;
}
break;
}
+ /* In case the grab failed, we still need to free the reply */
+ free(kreply);
+
/* Make this quite a bit slower */
usleep(50);
- /* Measure elapsed time and trigger a screen redraw if elapsed > 250000 */
+ struct timeval now;
+ if (gettimeofday(&now, NULL) == -1) {
+ err(EXIT_FAILURE, "gettimeofday");
+ }
+
+ struct timeval elapsed;
+ timersub(&now, &start, &elapsed);
+
+ /* Trigger a screen redraw if 100ms elapsed */
if (!redrawn &&
(tries % 100) == 0 &&
- (clock() - start) > 250000) {
+ elapsed.tv_usec >= screen_redraw_timeout) {
redraw_screen();
redrawn = true;
}
}
- /* After trying for 10000 times, i3lock will display an error message
- * for 2 sec prior to terminate. */
- if (tries <= 0) {
- auth_state = STATE_I3LOCK_LOCK_FAILED;
- redraw_screen();
- sleep(1);
- errx(EXIT_FAILURE, "Cannot grab pointer/keyboard");
- }
+ return (tries > 0);
}
xcb_cursor_t create_cursor(xcb_connection_t *conn, xcb_screen_t *screen, xcb_window_t win, int choice) {
return cursor;
}
+
+static xcb_atom_t _NET_ACTIVE_WINDOW = XCB_NONE;
+void _init_net_active_window(xcb_connection_t *conn) {
+ if (_NET_ACTIVE_WINDOW != XCB_NONE) {
+ /* already initialized */
+ return;
+ }
+ xcb_generic_error_t *err;
+ xcb_intern_atom_reply_t *atom_reply = xcb_intern_atom_reply(
+ conn,
+ xcb_intern_atom(conn, 0, strlen("_NET_ACTIVE_WINDOW"), "_NET_ACTIVE_WINDOW"),
+ &err);
+ if (atom_reply == NULL) {
+ fprintf(stderr, "X11 Error %d\n", err->error_code);
+ free(err);
+ return;
+ }
+ _NET_ACTIVE_WINDOW = atom_reply->atom;
+ free(atom_reply);
+}
+
+xcb_window_t find_focused_window(xcb_connection_t *conn, const xcb_window_t root) {
+ xcb_window_t result = XCB_NONE;
+
+ _init_net_active_window(conn);
+
+ xcb_get_property_reply_t *prop_reply = xcb_get_property_reply(
+ conn,
+ xcb_get_property_unchecked(
+ conn, false, root, _NET_ACTIVE_WINDOW, XCB_GET_PROPERTY_TYPE_ANY, 0, 1 /* word */),
+ NULL);
+ if (prop_reply == NULL) {
+ goto out;
+ }
+ if (xcb_get_property_value_length(prop_reply) == 0) {
+ goto out_prop;
+ }
+ if (prop_reply->type != XCB_ATOM_WINDOW) {
+ goto out_prop;
+ }
+
+ result = *((xcb_window_t *)xcb_get_property_value(prop_reply));
+
+out_prop:
+ free(prop_reply);
+out:
+ return result;
+}
+
+void set_focused_window(xcb_connection_t *conn, const xcb_window_t root, const xcb_window_t window) {
+ xcb_client_message_event_t ev;
+ memset(&ev, '\0', sizeof(xcb_client_message_event_t));
+
+ _init_net_active_window(conn);
+
+ ev.response_type = XCB_CLIENT_MESSAGE;
+ ev.window = window;
+ ev.type = _NET_ACTIVE_WINDOW;
+ ev.format = 32;
+ ev.data.data32[0] = 2; /* 2 = pager */
+
+ xcb_send_event(conn, false, root, XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT, (char *)&ev);
+ xcb_flush(conn);
+}
projects / i3 / i3lock / blobdiff