/*
* vim:ts=4:sw=4:expandtab
*
- * © 2010-2011 Michael Stapelberg
+ * © 2010 Michael Stapelberg
*
* xcb.c: contains all functions which use XCB to talk to X11. Mostly wrappers
* around the rather complicated/ugly parts of the XCB API.
*
*/
#include <xcb/xcb.h>
-#include <xcb/xcb_keysyms.h>
#include <xcb/xcb_image.h>
-#include <xcb/dpms.h>
+#include <xcb/xcb_atom.h>
+#include <xcb/xcb_aux.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
+#include <string.h>
#include <unistd.h>
#include <assert.h>
#include <err.h>
+#include <time.h>
+#include <sys/time.h>
#include "cursors.h"
+#include "unlock_indicator.h"
+
+extern auth_state_t auth_state;
+
+xcb_connection_t *conn;
+xcb_screen_t *screen;
#define curs_invisible_width 8
#define curs_invisible_height 8
static unsigned char curs_invisible_bits[] = {
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
#define curs_windows_width 11
#define curs_windows_height 19
static unsigned char curs_windows_bits[] = {
- 0xfe, 0x07, 0xfc, 0x07, 0xfa, 0x07, 0xf6, 0x07, 0xee, 0x07, 0xde, 0x07,
- 0xbe, 0x07, 0x7e, 0x07, 0xfe, 0x06, 0xfe, 0x05, 0x3e, 0x00, 0xb6, 0x07,
- 0x6a, 0x07, 0x6c, 0x07, 0xde, 0x06, 0xdf, 0x06, 0xbf, 0x05, 0xbf, 0x05,
- 0x7f, 0x06 };
+ 0xfe, 0x07, 0xfc, 0x07, 0xfa, 0x07, 0xf6, 0x07, 0xee, 0x07, 0xde, 0x07,
+ 0xbe, 0x07, 0x7e, 0x07, 0xfe, 0x06, 0xfe, 0x05, 0x3e, 0x00, 0xb6, 0x07,
+ 0x6a, 0x07, 0x6c, 0x07, 0xde, 0x06, 0xdf, 0x06, 0xbf, 0x05, 0xbf, 0x05,
+ 0x7f, 0x06};
#define mask_windows_width 11
#define mask_windows_height 19
static unsigned char mask_windows_bits[] = {
- 0x01, 0x00, 0x03, 0x00, 0x07, 0x00, 0x0f, 0x00, 0x1f, 0x00, 0x3f, 0x00,
- 0x7f, 0x00, 0xff, 0x00, 0xff, 0x01, 0xff, 0x03, 0xff, 0x07, 0x7f, 0x00,
- 0xf7, 0x00, 0xf3, 0x00, 0xe1, 0x01, 0xe0, 0x01, 0xc0, 0x03, 0xc0, 0x03,
- 0x80, 0x01 };
+ 0x01, 0x00, 0x03, 0x00, 0x07, 0x00, 0x0f, 0x00, 0x1f, 0x00, 0x3f, 0x00,
+ 0x7f, 0x00, 0xff, 0x00, 0xff, 0x01, 0xff, 0x03, 0xff, 0x07, 0x7f, 0x00,
+ 0xf7, 0x00, 0xf3, 0x00, 0xe1, 0x01, 0xe0, 0x01, 0xc0, 0x03, 0xc0, 0x03,
+ 0x80, 0x01};
static uint32_t get_colorpixel(char *hex) {
char strgroups[3][3] = {{hex[0], hex[1], '\0'},
for (depth_iter = xcb_screen_allowed_depths_iterator(screen);
depth_iter.rem;
xcb_depth_next(&depth_iter)) {
-
for (visual_iter = xcb_depth_visuals_iterator(depth_iter.data);
visual_iter.rem;
xcb_visualtype_next(&visual_iter)) {
return NULL;
}
-xcb_pixmap_t create_bg_pixmap(xcb_connection_t *conn, xcb_screen_t *scr, u_int32_t* resolution, char *color) {
+xcb_pixmap_t create_bg_pixmap(xcb_connection_t *conn, xcb_screen_t *scr, u_int32_t *resolution, char *color) {
xcb_pixmap_t bg_pixmap = xcb_generate_id(conn);
xcb_create_pixmap(conn, scr->root_depth, bg_pixmap, scr->root,
resolution[0], resolution[1]);
/* Generate a Graphics Context and fill the pixmap with background color
* (for images that are smaller than your screen) */
xcb_gcontext_t gc = xcb_generate_id(conn);
- uint32_t values[] = { get_colorpixel(color) };
+ uint32_t values[] = {get_colorpixel(color)};
xcb_create_gc(conn, gc, bg_pixmap, XCB_GC_FOREGROUND, values);
- xcb_rectangle_t rect = { 0, 0, resolution[0], resolution[1] };
+ xcb_rectangle_t rect = {0, 0, resolution[0], resolution[1]};
xcb_poly_fill_rectangle(conn, bg_pixmap, gc, 1, &rect);
xcb_free_gc(conn, gc);
XCB_EVENT_MASK_STRUCTURE_NOTIFY;
xcb_create_window(conn,
- 24,
- win, /* the window id */
+ XCB_COPY_FROM_PARENT,
+ win, /* the window id */
scr->root, /* parent == root */
0, 0,
scr->width_in_pixels,
scr->height_in_pixels, /* dimensions */
- 0, /* border = 0, we draw our own */
+ 0, /* border = 0, we draw our own */
XCB_WINDOW_CLASS_INPUT_OUTPUT,
XCB_WINDOW_CLASS_COPY_FROM_PARENT, /* copy visual from parent */
mask,
values);
+ char *name = "i3lock";
+ xcb_change_property(conn,
+ XCB_PROP_MODE_REPLACE,
+ win,
+ XCB_ATOM_WM_NAME,
+ XCB_ATOM_STRING,
+ 8,
+ 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);
values[0] = XCB_STACK_MODE_ABOVE;
xcb_configure_window(conn, win, XCB_CONFIG_WINDOW_STACK_MODE, values);
+ /* Ensure that the window is created and set up before returning */
+ xcb_aux_sync(conn);
+
return win;
}
/*
- * Returns the mask for Mode_switch (to be used for looking up keysymbols by
- * keycode).
+ * Repeatedly tries to grab pointer and keyboard (up to the specified number of
+ * tries).
*
- */
-uint32_t get_mod_mask(xcb_connection_t *conn, xcb_key_symbols_t *symbols, uint32_t keycode) {
- xcb_get_modifier_mapping_reply_t *modmap_r;
- xcb_keycode_t *modmap, kc;
- xcb_keycode_t *modeswitchcodes = xcb_key_symbols_get_keycode(symbols, keycode);
- if (modeswitchcodes == NULL)
- return 0;
-
- modmap_r = xcb_get_modifier_mapping_reply(conn, xcb_get_modifier_mapping(conn), NULL);
- modmap = xcb_get_modifier_mapping_keycodes(modmap_r);
-
- for (int i = 0; i < 8; i++)
- for (int j = 0; j < modmap_r->keycodes_per_modifier; j++) {
- kc = modmap[i * modmap_r->keycodes_per_modifier + j];
- for (xcb_keycode_t *ktest = modeswitchcodes; *ktest; ktest++) {
- if (*ktest != kc)
- continue;
-
- free(modeswitchcodes);
- free(modmap_r);
- return (1 << i);
- }
- }
-
- return 0;
-}
-
-void dpms_turn_off_screen(xcb_connection_t *conn) {
- xcb_dpms_enable(conn);
- xcb_dpms_force_level(conn, XCB_DPMS_DPMS_MODE_OFF);
- xcb_flush(conn);
-}
-
-/*
- * Repeatedly tries to grab pointer and keyboard (up to 1000 times).
+ * 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;
+ struct timeval start;
+ if (gettimeofday(&start, NULL) == -1) {
+ err(EXIT_FAILURE, "gettimeofday");
+ }
while (tries-- > 0) {
pcookie = xcb_grab_pointer(
XCB_GRAB_MODE_ASYNC, /* keyboard mode */
XCB_NONE, /* confine_to = in which window should the cursor stay */
cursor, /* we change the cursor to whatever the user wanted */
- XCB_CURRENT_TIME
- );
+ XCB_CURRENT_TIME);
if ((preply = xcb_grab_pointer_reply(conn, pcookie, NULL)) &&
preply->status == XCB_GRAB_STATUS_SUCCESS) {
break;
}
+ /* In case the grab failed, we still need to free the reply */
+ free(preply);
+
/* Make this quite a bit slower */
usleep(50);
+
+ struct timeval now;
+ if (gettimeofday(&now, NULL) == -1) {
+ err(EXIT_FAILURE, "gettimeofday");
+ }
+
+ struct timeval elapsed;
+ timersub(&now, &start, &elapsed);
+
+ if (!redrawn &&
+ (tries % 100) == 0 &&
+ elapsed.tv_usec >= screen_redraw_timeout) {
+ redraw_screen();
+ redrawn = true;
+ }
}
while (tries-- > 0) {
kcookie = xcb_grab_keyboard(
conn,
- true, /* report events */
- screen->root, /* grab the root window */
+ true, /* report events */
+ screen->root, /* grab the root window */
XCB_CURRENT_TIME,
XCB_GRAB_MODE_ASYNC, /* process events as normal, do not require sync */
- XCB_GRAB_MODE_ASYNC
- );
+ XCB_GRAB_MODE_ASYNC);
if ((kreply = xcb_grab_keyboard_reply(conn, kcookie, NULL)) &&
kreply->status == XCB_GRAB_STATUS_SUCCESS) {
break;
}
+ /* In case the grab failed, we still need to free the reply */
+ free(kreply);
+
/* Make this quite a bit slower */
usleep(50);
+
+ 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 &&
+ elapsed.tv_usec >= screen_redraw_timeout) {
+ redraw_screen();
+ redrawn = true;
+ }
}
- if (tries <= 0)
- 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) {
xcb_pixmap_t mask;
xcb_cursor_t cursor;
- unsigned char* curs_bits;
- unsigned char* mask_bits;
+ unsigned char *curs_bits;
+ unsigned char *mask_bits;
int curs_w, curs_h;
switch (choice) {
cursor,
bitmap,
mask,
- 65535,65535,65535,
- 0,0,0,
- 0,0);
+ 65535, 65535, 65535,
+ 0, 0, 0,
+ 0, 0);
xcb_free_pixmap(conn, bitmap);
xcb_free_pixmap(conn, mask);
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