0dc11b5d22
Fixes #491 Before, we assumed XK_Alt_L was in Mod1 and XK_Super_L was in Mod4 (which is true on most systems). Now we just check if the keycode is in Mod1 or Mod4 and write the config accordingly.
606 lines
18 KiB
C
606 lines
18 KiB
C
/*
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* vim:ts=4:sw=4:expandtab
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*
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* i3 - an improved dynamic tiling window manager
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*
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* © 2011 Michael Stapelberg and contributors
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*
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* See file LICENSE for license information.
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*
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* i3-config-wizard: Program to convert configs using keycodes to configs using
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* keysyms.
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*
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*/
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#include <ev.h>
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#include <stdio.h>
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#include <sys/types.h>
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#include <stdlib.h>
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#include <stdbool.h>
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#include <unistd.h>
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#include <string.h>
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#include <ctype.h>
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#include <errno.h>
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#include <err.h>
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#include <stdint.h>
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#include <getopt.h>
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#include <limits.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <glob.h>
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#include <xcb/xcb.h>
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#include <xcb/xcb_aux.h>
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#include <xcb/xcb_event.h>
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#include <xcb/xcb_keysyms.h>
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#include <X11/Xlib.h>
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#include <X11/keysym.h>
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/* We need SYSCONFDIR for the path to the keycode config template, so raise an
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* error if it’s not defined for whatever reason */
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#ifndef SYSCONFDIR
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#error "SYSCONFDIR not defined"
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#endif
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#define FREE(pointer) do { \
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if (pointer != NULL) { \
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free(pointer); \
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pointer = NULL; \
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} \
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} \
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while (0)
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#include "xcb.h"
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#include "ipc.h"
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enum { STEP_WELCOME, STEP_GENERATE } current_step = STEP_WELCOME;
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enum { MOD_Mod1, MOD_Mod4 } modifier = MOD_Mod4;
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static char *config_path;
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static xcb_connection_t *conn;
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static xcb_get_modifier_mapping_reply_t *modmap_reply;
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static uint32_t font_id;
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static uint32_t font_bold_id;
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static char *socket_path;
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static int font_height;
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static int font_bold_height;
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static xcb_window_t win;
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static xcb_pixmap_t pixmap;
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static xcb_gcontext_t pixmap_gc;
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static xcb_key_symbols_t *symbols;
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xcb_window_t root;
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Display *dpy;
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char *rewrite_binding(const char *bindingline);
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static void finish();
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#if defined(__APPLE__)
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/*
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* Taken from FreeBSD
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* Returns a pointer to a new string which is a duplicate of the
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* string, but only copies at most n characters.
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*
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*/
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char *strndup(const char *str, size_t n) {
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size_t len;
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char *copy;
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for (len = 0; len < n && str[len]; len++)
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continue;
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if ((copy = malloc(len + 1)) == NULL)
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return (NULL);
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memcpy(copy, str, len);
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copy[len] = '\0';
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return (copy);
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}
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#endif
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/*
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* This function resolves ~ in pathnames.
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* It may resolve wildcards in the first part of the path, but if no match
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* or multiple matches are found, it just returns a copy of path as given.
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*
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*/
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static char *resolve_tilde(const char *path) {
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static glob_t globbuf;
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char *head, *tail, *result;
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tail = strchr(path, '/');
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head = strndup(path, tail ? tail - path : strlen(path));
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int res = glob(head, GLOB_TILDE, NULL, &globbuf);
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free(head);
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/* no match, or many wildcard matches are bad */
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if (res == GLOB_NOMATCH || globbuf.gl_pathc != 1)
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result = strdup(path);
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else if (res != 0) {
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err(1, "glob() failed");
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} else {
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head = globbuf.gl_pathv[0];
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result = calloc(1, strlen(head) + (tail ? strlen(tail) : 0) + 1);
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strncpy(result, head, strlen(head));
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if (tail)
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strncat(result, tail, strlen(tail));
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}
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globfree(&globbuf);
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return result;
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}
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/*
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* Try to get the socket path from X11 and return NULL if it doesn’t work.
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* As i3-msg is a short-running tool, we don’t bother with cleaning up the
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* connection and leave it up to the operating system on exit.
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*
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*/
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static char *socket_path_from_x11() {
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xcb_connection_t *conn;
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int screen;
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if ((conn = xcb_connect(NULL, &screen)) == NULL ||
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xcb_connection_has_error(conn))
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return NULL;
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xcb_screen_t *root_screen = xcb_aux_get_screen(conn, screen);
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xcb_window_t root = root_screen->root;
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xcb_intern_atom_cookie_t atom_cookie;
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xcb_intern_atom_reply_t *atom_reply;
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atom_cookie = xcb_intern_atom(conn, 0, strlen("I3_SOCKET_PATH"), "I3_SOCKET_PATH");
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atom_reply = xcb_intern_atom_reply(conn, atom_cookie, NULL);
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if (atom_reply == NULL)
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return NULL;
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xcb_get_property_cookie_t prop_cookie;
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xcb_get_property_reply_t *prop_reply;
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prop_cookie = xcb_get_property_unchecked(conn, false, root, atom_reply->atom,
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XCB_GET_PROPERTY_TYPE_ANY, 0, PATH_MAX);
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prop_reply = xcb_get_property_reply(conn, prop_cookie, NULL);
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if (prop_reply == NULL || xcb_get_property_value_length(prop_reply) == 0)
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return NULL;
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if (asprintf(&socket_path, "%.*s", xcb_get_property_value_length(prop_reply),
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(char*)xcb_get_property_value(prop_reply)) == -1)
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return NULL;
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return socket_path;
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}
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/*
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* Handles expose events, that is, draws the window contents.
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*
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*/
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static int handle_expose() {
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/* re-draw the background */
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xcb_rectangle_t border = {0, 0, 300, (15*font_height) + 8};
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xcb_change_gc_single(conn, pixmap_gc, XCB_GC_FOREGROUND, get_colorpixel(conn, "#000000"));
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xcb_poly_fill_rectangle(conn, pixmap, pixmap_gc, 1, &border);
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xcb_change_gc_single(conn, pixmap_gc, XCB_GC_FONT, font_id);
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#define txt(x, row, text) xcb_image_text_8(conn, strlen(text), pixmap, pixmap_gc, x, (row * font_height) + 2, text)
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if (current_step == STEP_WELCOME) {
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/* restore font color */
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xcb_change_gc_single(conn, pixmap_gc, XCB_GC_FOREGROUND, get_colorpixel(conn, "#FFFFFF"));
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txt(10, 2, "You have not configured i3 yet.");
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txt(10, 3, "Do you want me to generate ~/.i3/config?");
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txt(85, 5, "Yes, generate ~/.i3/config");
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txt(85, 7, "No, I will use the defaults");
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/* green */
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xcb_change_gc_single(conn, pixmap_gc, XCB_GC_FOREGROUND, get_colorpixel(conn, "#00FF00"));
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txt(25, 5, "<Enter>");
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/* red */
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xcb_change_gc_single(conn, pixmap_gc, XCB_GC_FOREGROUND, get_colorpixel(conn, "#FF0000"));
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txt(31, 7, "<ESC>");
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}
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if (current_step == STEP_GENERATE) {
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xcb_change_gc_single(conn, pixmap_gc, XCB_GC_FOREGROUND, get_colorpixel(conn, "#FFFFFF"));
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txt(10, 2, "Please choose either:");
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txt(85, 4, "Win as default modifier");
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txt(85, 5, "Alt as default modifier");
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txt(10, 7, "Afterwards, press");
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txt(85, 9, "to write ~/.i3/config");
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txt(85, 10, "to abort");
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/* the not-selected modifier */
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if (modifier == MOD_Mod4)
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txt(31, 5, "<Alt>");
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else txt(31, 4, "<Win>");
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/* the selected modifier */
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xcb_change_gc_single(conn, pixmap_gc, XCB_GC_FONT, font_bold_id);
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if (modifier == MOD_Mod4)
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txt(31, 4, "<Win>");
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else txt(31, 5, "<Alt>");
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/* green */
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uint32_t mask = XCB_GC_FOREGROUND | XCB_GC_FONT;
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uint32_t values[] = { get_colorpixel(conn, "#00FF00"), font_id };
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xcb_change_gc(conn, pixmap_gc, mask, values);
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txt(25, 9, "<Enter>");
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/* red */
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xcb_change_gc_single(conn, pixmap_gc, XCB_GC_FOREGROUND, get_colorpixel(conn, "#FF0000"));
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txt(31, 10, "<ESC>");
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}
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/* Copy the contents of the pixmap to the real window */
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xcb_copy_area(conn, pixmap, win, pixmap_gc, 0, 0, 0, 0, /* */ 500, 500);
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xcb_flush(conn);
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return 1;
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}
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static int handle_key_press(void *ignored, xcb_connection_t *conn, xcb_key_press_event_t *event) {
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printf("Keypress %d, state raw = %d\n", event->detail, event->state);
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/* Remove the numlock bit, all other bits are modifiers we can bind to */
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uint16_t state_filtered = event->state & ~(xcb_numlock_mask | XCB_MOD_MASK_LOCK);
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/* Only use the lower 8 bits of the state (modifier masks) so that mouse
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* button masks are filtered out */
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state_filtered &= 0xFF;
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xcb_keysym_t sym = xcb_key_press_lookup_keysym(symbols, event, state_filtered);
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printf("sym = %c (%d)\n", sym, sym);
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if (sym == XK_Return || sym == XK_KP_Enter) {
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if (current_step == STEP_WELCOME) {
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current_step = STEP_GENERATE;
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/* Set window title */
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xcb_change_property(conn,
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XCB_PROP_MODE_REPLACE,
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win,
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A__NET_WM_NAME,
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A_UTF8_STRING,
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8,
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strlen("i3: generate config"),
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"i3: generate config");
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xcb_flush(conn);
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}
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else finish();
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}
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/* cancel any time */
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if (sym == XK_Escape)
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exit(0);
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/* Check if this is Mod1 or Mod4. The modmap contains Shift, Lock, Control,
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* Mod1, Mod2, Mod3, Mod4, Mod5 (in that order) */
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xcb_keycode_t *modmap = xcb_get_modifier_mapping_keycodes(modmap_reply);
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/* Mod1? */
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int mask = 3;
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for (int i = 0; i < modmap_reply->keycodes_per_modifier; i++) {
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xcb_keycode_t code = modmap[(mask * modmap_reply->keycodes_per_modifier) + i];
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if (code == XCB_NONE)
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continue;
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printf("Modifier keycode for Mod1: 0x%02x\n", code);
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if (code == event->detail) {
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modifier = MOD_Mod1;
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printf("This is Mod1!\n");
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}
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}
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/* Mod4? */
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mask = 6;
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for (int i = 0; i < modmap_reply->keycodes_per_modifier; i++) {
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xcb_keycode_t code = modmap[(mask * modmap_reply->keycodes_per_modifier) + i];
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if (code == XCB_NONE)
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continue;
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printf("Modifier keycode for Mod4: 0x%02x\n", code);
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if (code == event->detail) {
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modifier = MOD_Mod4;
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printf("This is Mod4!\n");
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}
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}
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handle_expose();
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return 1;
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}
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/*
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* Handle button presses to make clicking on "<win>" and "<alt>" work
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*
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*/
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static void handle_button_press(xcb_button_press_event_t* event) {
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if (current_step != STEP_GENERATE)
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return;
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if (event->event_x >= 32 && event->event_x <= 68 &&
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event->event_y >= 45 && event->event_y <= 54) {
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modifier = MOD_Mod4;
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handle_expose();
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}
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if (event->event_x >= 32 && event->event_x <= 68 &&
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event->event_y >= 56 && event->event_y <= 70) {
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modifier = MOD_Mod1;
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handle_expose();
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}
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return;
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}
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/*
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* Creates the config file and tells i3 to reload.
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*
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*/
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static void finish() {
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printf("creating \"%s\"...\n", config_path);
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if (!(dpy = XOpenDisplay(NULL)))
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errx(1, "Could not connect to X11");
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FILE *kc_config = fopen(SYSCONFDIR "/i3/config.keycodes", "r");
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if (kc_config == NULL)
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err(1, "Could not open input file \"%s\"", SYSCONFDIR "/i3/config.keycodes");
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FILE *ks_config = fopen(config_path, "w");
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if (ks_config == NULL)
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err(1, "Could not open output config file \"%s\"", config_path);
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char *line = NULL;
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size_t len = 0;
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#if !defined(__APPLE__)
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ssize_t read;
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#endif
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bool head_of_file = true;
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/* write a header about auto-generation to the output file */
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fputs("# This file has been auto-generated by i3-config-wizard(1).\n", ks_config);
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fputs("# It will not be overwritten, so edit it as you like.\n", ks_config);
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fputs("#\n", ks_config);
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fputs("# Should you change your keyboard layout somewhen, delete\n", ks_config);
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fputs("# this file and re-run i3-config-wizard(1).\n", ks_config);
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fputs("#\n", ks_config);
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#if defined(__APPLE__)
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while ((line = fgetln(kc_config, &len)) != NULL) {
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#else
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while ((read = getline(&line, &len, kc_config)) != -1) {
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#endif
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/* skip the warning block at the beginning of the input file */
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if (head_of_file &&
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strncmp("# WARNING", line, strlen("# WARNING")) == 0)
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continue;
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head_of_file = false;
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/* Skip leading whitespace */
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char *walk = line;
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while (isspace(*walk) && walk < (line + len))
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walk++;
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/* Set the modifier the user chose */
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if (strncmp(walk, "set $mod ", strlen("set $mod ")) == 0) {
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if (modifier == MOD_Mod1)
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fputs("set $mod Mod1\n", ks_config);
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else fputs("set $mod Mod4\n", ks_config);
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continue;
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}
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/* Check for 'bindcode'. If it’s not a bindcode line, we
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* just copy it to the output file */
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if (strncmp(walk, "bindcode", strlen("bindcode")) != 0) {
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fputs(line, ks_config);
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continue;
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}
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char *result = rewrite_binding(walk);
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fputs(result, ks_config);
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free(result);
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}
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/* sync to do our best in order to have the file really stored on disk */
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fflush(ks_config);
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fsync(fileno(ks_config));
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free(line);
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fclose(kc_config);
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fclose(ks_config);
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/* tell i3 to reload the config file */
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int sockfd = connect_ipc(socket_path);
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ipc_send_message(sockfd, strlen("reload"), 0, (uint8_t*)"reload");
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close(sockfd);
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exit(0);
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}
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int main(int argc, char *argv[]) {
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config_path = resolve_tilde("~/.i3/config");
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socket_path = getenv("I3SOCK");
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char *pattern = "-misc-fixed-medium-r-normal--13-120-75-75-C-70-iso10646-1";
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char *patternbold = "-misc-fixed-bold-r-normal--13-120-75-75-C-70-iso10646-1";
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int o, option_index = 0;
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static struct option long_options[] = {
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{"socket", required_argument, 0, 's'},
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{"version", no_argument, 0, 'v'},
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{"limit", required_argument, 0, 'l'},
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{"prompt", required_argument, 0, 'P'},
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{"prefix", required_argument, 0, 'p'},
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{"font", required_argument, 0, 'f'},
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{"help", no_argument, 0, 'h'},
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{0, 0, 0, 0}
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};
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char *options_string = "s:vh";
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while ((o = getopt_long(argc, argv, options_string, long_options, &option_index)) != -1) {
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switch (o) {
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case 's':
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FREE(socket_path);
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socket_path = strdup(optarg);
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break;
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case 'v':
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printf("i3-config-wizard " I3_VERSION "\n");
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return 0;
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case 'h':
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printf("i3-config-wizard " I3_VERSION "\n");
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printf("i3-config-wizard [-s <socket>] [-v]\n");
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return 0;
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}
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}
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/* Check if the destination config file does not exist but the path is
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* writable. If not, exit now, this program is not useful in that case. */
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struct stat stbuf;
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if (stat(config_path, &stbuf) == 0) {
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printf("The config file \"%s\" already exists. Exiting.\n", config_path);
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return 0;
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}
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/* Create ~/.i3 if it does not yet exist */
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char *config_dir = resolve_tilde("~/.i3");
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if (stat(config_dir, &stbuf) != 0)
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if (mkdir(config_dir, 0755) == -1)
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err(1, "mkdir(%s) failed", config_dir);
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free(config_dir);
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int fd;
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if ((fd = open(config_path, O_CREAT | O_RDWR, 0644)) == -1) {
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printf("Cannot open file \"%s\" for writing: %s. Exiting.\n", config_path, strerror(errno));
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return 0;
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}
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close(fd);
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unlink(config_path);
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if (socket_path == NULL)
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socket_path = socket_path_from_x11();
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if (socket_path == NULL)
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socket_path = "/tmp/i3-ipc.sock";
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int screens;
|
||
if ((conn = xcb_connect(NULL, &screens)) == NULL ||
|
||
xcb_connection_has_error(conn))
|
||
errx(1, "Cannot open display\n");
|
||
|
||
xcb_get_modifier_mapping_cookie_t modmap_cookie;
|
||
modmap_cookie = xcb_get_modifier_mapping(conn);
|
||
|
||
/* Place requests for the atoms we need as soon as possible */
|
||
#define xmacro(atom) \
|
||
xcb_intern_atom_cookie_t atom ## _cookie = xcb_intern_atom(conn, 0, strlen(#atom), #atom);
|
||
#include "atoms.xmacro"
|
||
#undef xmacro
|
||
|
||
xcb_screen_t *root_screen = xcb_aux_get_screen(conn, screens);
|
||
root = root_screen->root;
|
||
|
||
if (!(modmap_reply = xcb_get_modifier_mapping_reply(conn, modmap_cookie, NULL)))
|
||
errx(EXIT_FAILURE, "Could not get modifier mapping\n");
|
||
|
||
/* XXX: we should refactor xcb_get_numlock_mask so that it uses the
|
||
* modifier mapping we already have */
|
||
xcb_get_numlock_mask(conn);
|
||
|
||
symbols = xcb_key_symbols_alloc(conn);
|
||
|
||
font_id = get_font_id(conn, pattern, &font_height);
|
||
font_bold_id = get_font_id(conn, patternbold, &font_bold_height);
|
||
|
||
/* Open an input window */
|
||
win = open_input_window(conn, 300, 205);
|
||
|
||
/* Setup NetWM atoms */
|
||
#define xmacro(name) \
|
||
do { \
|
||
xcb_intern_atom_reply_t *reply = xcb_intern_atom_reply(conn, name ## _cookie, NULL); \
|
||
if (!reply) \
|
||
errx(EXIT_FAILURE, "Could not get atom " # name "\n"); \
|
||
\
|
||
A_ ## name = reply->atom; \
|
||
free(reply); \
|
||
} while (0);
|
||
#include "atoms.xmacro"
|
||
#undef xmacro
|
||
|
||
/* Set dock mode */
|
||
xcb_change_property(conn,
|
||
XCB_PROP_MODE_REPLACE,
|
||
win,
|
||
A__NET_WM_WINDOW_TYPE,
|
||
A_ATOM,
|
||
32,
|
||
1,
|
||
(unsigned char*) &A__NET_WM_WINDOW_TYPE_DIALOG);
|
||
|
||
/* Set window title */
|
||
xcb_change_property(conn,
|
||
XCB_PROP_MODE_REPLACE,
|
||
win,
|
||
A__NET_WM_NAME,
|
||
A_UTF8_STRING,
|
||
8,
|
||
strlen("i3: first configuration"),
|
||
"i3: first configuration");
|
||
|
||
/* Create pixmap */
|
||
pixmap = xcb_generate_id(conn);
|
||
pixmap_gc = xcb_generate_id(conn);
|
||
xcb_create_pixmap(conn, root_screen->root_depth, pixmap, win, 500, 500);
|
||
xcb_create_gc(conn, pixmap_gc, pixmap, 0, 0);
|
||
|
||
/* Grab the keyboard to get all input */
|
||
xcb_flush(conn);
|
||
|
||
/* Try (repeatedly, if necessary) to grab the keyboard. We might not
|
||
* get the keyboard at the first attempt because of the keybinding
|
||
* still being active when started via a wm’s keybinding. */
|
||
xcb_grab_keyboard_cookie_t cookie;
|
||
xcb_grab_keyboard_reply_t *reply = NULL;
|
||
|
||
int count = 0;
|
||
while ((reply == NULL || reply->status != XCB_GRAB_STATUS_SUCCESS) && (count++ < 500)) {
|
||
cookie = xcb_grab_keyboard(conn, false, win, XCB_CURRENT_TIME, XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC);
|
||
reply = xcb_grab_keyboard_reply(conn, cookie, NULL);
|
||
usleep(1000);
|
||
}
|
||
|
||
if (reply->status != XCB_GRAB_STATUS_SUCCESS) {
|
||
fprintf(stderr, "Could not grab keyboard, status = %d\n", reply->status);
|
||
exit(-1);
|
||
}
|
||
|
||
xcb_flush(conn);
|
||
|
||
xcb_generic_event_t *event;
|
||
while ((event = xcb_wait_for_event(conn)) != NULL) {
|
||
if (event->response_type == 0) {
|
||
fprintf(stderr, "X11 Error received! sequence %x\n", event->sequence);
|
||
continue;
|
||
}
|
||
|
||
/* Strip off the highest bit (set if the event is generated) */
|
||
int type = (event->response_type & 0x7F);
|
||
|
||
switch (type) {
|
||
case XCB_KEY_PRESS:
|
||
handle_key_press(NULL, conn, (xcb_key_press_event_t*)event);
|
||
break;
|
||
|
||
/* TODO: handle mappingnotify */
|
||
|
||
case XCB_BUTTON_PRESS:
|
||
handle_button_press((xcb_button_press_event_t*)event);
|
||
break;
|
||
|
||
case XCB_EXPOSE:
|
||
handle_expose();
|
||
break;
|
||
}
|
||
|
||
free(event);
|
||
}
|
||
|
||
return 0;
|
||
}
|