/*
* vim:ts=4:sw=4:expandtab
*
- * © 2010 Michael Stapelberg
+ * © 2010-2012 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/xcb_atom.h>
#include <xcb/dpms.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
+#include <string.h>
+#include <unistd.h>
#include <assert.h>
#include <err.h>
+#include "cursors.h"
+
+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 };
+
+#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 };
+
+#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 };
+
static uint32_t get_colorpixel(char *hex) {
char strgroups[3][3] = {{hex[0], hex[1], '\0'},
{hex[2], hex[3], '\0'},
(strtol(strgroups[2], NULL, 16))};
return (rgb16[0] << 16) + (rgb16[1] << 8) + rgb16[2];
-}
-
-int x_event_type(xcb_generic_event_t *event) {
- /* TODO: comment */
- assert(event->response_type != 1);
-
- if (event->response_type == 0) {
- fprintf(stderr, "error\n");
- exit(1);
- }
- int type = event->response_type;
- assert(type < 256);
- /* strip the highest bit (TODO: why?) */
- type &= 0x7F;
- assert(type >= 2);
-
- return type;
}
xcb_visualtype_t *get_root_visual_type(xcb_screen_t *screen) {
return NULL;
}
-xcb_window_t open_fullscreen_window(xcb_connection_t *conn, xcb_screen_t *scr, 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) };
+ xcb_create_gc(conn, gc, bg_pixmap, XCB_GC_FOREGROUND, values);
+ 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);
+
+ return bg_pixmap;
+}
+
+xcb_window_t open_fullscreen_window(xcb_connection_t *conn, xcb_screen_t *scr, char *color, xcb_pixmap_t pixmap) {
uint32_t mask = 0;
uint32_t values[3];
xcb_window_t win = xcb_generate_id(conn);
- mask |= XCB_CW_BACK_PIXEL;
- values[0] = get_colorpixel(color);
+ if (pixmap == XCB_NONE) {
+ mask |= XCB_CW_BACK_PIXEL;
+ values[0] = get_colorpixel(color);
+ } else {
+ mask |= XCB_CW_BACK_PIXMAP;
+ values[0] = pixmap;
+ }
mask |= XCB_CW_OVERRIDE_REDIRECT;
values[1] = 1;
mask |= XCB_CW_EVENT_MASK;
- values[2] = XCB_EVENT_MASK_EXPOSURE | XCB_EVENT_MASK_KEY_PRESS | XCB_EVENT_MASK_KEY_RELEASE;
+ values[2] = XCB_EVENT_MASK_EXPOSURE |
+ XCB_EVENT_MASK_KEY_PRESS |
+ XCB_EVENT_MASK_KEY_RELEASE |
+ XCB_EVENT_MASK_VISIBILITY_CHANGE |
+ XCB_EVENT_MASK_STRUCTURE_NOTIFY;
xcb_create_window(conn,
- 24,
+ XCB_COPY_FROM_PARENT,
win, /* the window id */
scr->root, /* parent == root */
0, 0,
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);
+
/* Map the window (= make it visible) */
xcb_map_window(conn, win);
}
/*
- * Returns the mask for Mode_switch (to be used for looking up keysymbols by
- * keycode).
+ * Set the dpms level to 'mode'.
*
*/
-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) {
+void dpms_set_mode(xcb_connection_t *conn, xcb_dpms_dpms_mode_t mode) {
xcb_dpms_enable(conn);
- xcb_dpms_force_level(conn, XCB_DPMS_DPMS_MODE_OFF);
+ xcb_dpms_force_level(conn, mode);
xcb_flush(conn);
}
* Repeatedly tries to grab pointer and keyboard (up to 1000 times).
*
*/
-void grab_pointer_and_keyboard(xcb_connection_t *conn, xcb_screen_t *screen) {
+void grab_pointer_and_keyboard(xcb_connection_t *conn, xcb_screen_t *screen, xcb_cursor_t cursor) {
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 = 1000;
+ int tries = 10000;
while (tries-- > 0) {
pcookie = xcb_grab_pointer(
XCB_GRAB_MODE_ASYNC, /* pointer events should continue as normal */
XCB_GRAB_MODE_ASYNC, /* keyboard mode */
XCB_NONE, /* confine_to = in which window should the cursor stay */
- XCB_NONE, /* don’t display a special cursor */
+ cursor, /* we change the cursor to whatever the user wanted */
XCB_CURRENT_TIME
);
free(preply);
break;
}
+
+ /* Make this quite a bit slower */
+ usleep(50);
}
while (tries-- > 0) {
free(kreply);
break;
}
+
+ /* Make this quite a bit slower */
+ usleep(50);
}
- if (tries == 0)
+ if (tries <= 0)
errx(EXIT_FAILURE, "Cannot grab pointer/keyboard");
}
+
+xcb_cursor_t create_cursor(xcb_connection_t *conn, xcb_screen_t *screen, xcb_window_t win, int choice) {
+ xcb_pixmap_t bitmap;
+ xcb_pixmap_t mask;
+ xcb_cursor_t cursor;
+
+ unsigned char* curs_bits;
+ unsigned char* mask_bits;
+ int curs_w, curs_h;
+
+ switch (choice) {
+ case CURS_NONE:
+ curs_bits = curs_invisible_bits;
+ mask_bits = curs_invisible_bits;
+ curs_w = curs_invisible_width;
+ curs_h = curs_invisible_height;
+ break;
+ case CURS_WIN:
+ curs_bits = curs_windows_bits;
+ mask_bits = mask_windows_bits;
+ curs_w = curs_windows_width;
+ curs_h = curs_windows_height;
+ break;
+ case CURS_DEFAULT:
+ default:
+ return XCB_NONE; /* XCB_NONE is xcb's way of saying "don't change the cursor" */
+ }
+
+ bitmap = xcb_create_pixmap_from_bitmap_data(conn,
+ win,
+ curs_bits,
+ curs_w,
+ curs_h,
+ 1,
+ screen->white_pixel,
+ screen->black_pixel,
+ NULL);
+
+ mask = xcb_create_pixmap_from_bitmap_data(conn,
+ win,
+ mask_bits,
+ curs_w,
+ curs_h,
+ 1,
+ screen->white_pixel,
+ screen->black_pixel,
+ NULL);
+
+ cursor = xcb_generate_id(conn);
+
+ xcb_create_cursor(conn,
+ cursor,
+ bitmap,
+ mask,
+ 65535,65535,65535,
+ 0,0,0,
+ 0,0);
+
+ xcb_free_pixmap(conn, bitmap);
+ xcb_free_pixmap(conn, mask);
+
+ return cursor;
+}