605 lines
18 KiB
C
605 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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* © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
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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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#if defined(__FreeBSD__)
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#include <sys/param.h>
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#endif
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/* For systems without getline, fall back to fgetln */
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#if defined(__APPLE__) || (defined(__FreeBSD__) && __FreeBSD_version < 800000) || defined(__OpenBSD__)
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#define USE_FGETLN
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#elif defined(__FreeBSD__)
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/* Defining this macro before including stdio.h is necessary in order to have
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* a prototype for getline in FreeBSD. */
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#define _WITH_GETLINE
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#endif
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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 "libi3.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 uint32_t xcb_numlock_mask;
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xcb_connection_t *conn;
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xcb_screen_t *root_screen;
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static xcb_get_modifier_mapping_reply_t *modmap_reply;
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static i3Font font;
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static i3Font bold_font;
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static char *socket_path;
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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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/*
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* Having verboselog() and errorlog() is necessary when using libi3.
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*
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*/
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void verboselog(char *fmt, ...) {
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va_list args;
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va_start(args, fmt);
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vfprintf(stdout, fmt, args);
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va_end(args);
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}
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void errorlog(char *fmt, ...) {
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va_list args;
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va_start(args, fmt);
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vfprintf(stderr, fmt, args);
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va_end(args);
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}
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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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* 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(conn, pixmap_gc, XCB_GC_FOREGROUND, (uint32_t[]){ get_colorpixel("#000000") });
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xcb_poly_fill_rectangle(conn, pixmap, pixmap_gc, 1, &border);
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set_font(&font);
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#define txt(x, row, text) \
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draw_text_ascii(text, pixmap, pixmap_gc,\
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x, (row - 1) * font.height + 4, 300 - x * 2)
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if (current_step == STEP_WELCOME) {
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/* restore font color */
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set_font_colors(pixmap_gc, get_colorpixel("#FFFFFF"), get_colorpixel("#000000"));
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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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set_font_colors(pixmap_gc, get_colorpixel("#00FF00"), get_colorpixel("#000000"));
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txt(25, 5, "<Enter>");
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/* red */
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set_font_colors(pixmap_gc, get_colorpixel("#FF0000"), get_colorpixel("#000000"));
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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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set_font_colors(pixmap_gc, get_colorpixel("#FFFFFF"), get_colorpixel("#000000"));
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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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set_font(&bold_font);
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set_font_colors(pixmap_gc, get_colorpixel("#FFFFFF"), get_colorpixel("#000000"));
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if (modifier == MOD_Mod4)
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txt(10, 4, "-> <Win>");
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else txt(10, 5, "-> <Alt>");
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/* green */
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set_font(&font);
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set_font_colors(pixmap_gc, get_colorpixel("#00FF00"), get_colorpixel("#000000"));
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txt(25, 9, "<Enter>");
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/* red */
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set_font_colors(pixmap_gc, get_colorpixel("#FF0000"), get_colorpixel("#000000"));
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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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free(config_path);
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char *line = NULL;
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size_t len = 0;
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#ifndef USE_FGETLN
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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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#ifdef USE_FGETLN
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char *buf = NULL;
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while ((buf = fgetln(kc_config, &len)) != NULL) {
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/* fgetln does not return null-terminated strings */
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FREE(line);
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sasprintf(&line, "%.*s", len, buf);
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#else
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size_t linecap = 0;
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while ((read = getline(&line, &linecap, kc_config)) != -1) {
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len = strlen(line);
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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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/* Pre-output the skipped whitespaces to keep proper indentation */
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fputc(*walk, ks_config);
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walk++;
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}
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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(walk, 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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#ifndef USE_FGETLN
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free(line);
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#endif
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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 = ipc_connect(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 = root_atom_contents("I3_SOCKET_PATH");
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if (socket_path == NULL)
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socket_path = "/tmp/i3-ipc.sock";
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int screens;
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if ((conn = xcb_connect(NULL, &screens)) == NULL ||
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xcb_connection_has_error(conn))
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errx(1, "Cannot open display\n");
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xcb_get_modifier_mapping_cookie_t modmap_cookie;
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modmap_cookie = xcb_get_modifier_mapping(conn);
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symbols = xcb_key_symbols_alloc(conn);
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/* Place requests for the atoms we need as soon as possible */
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#define xmacro(atom) \
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xcb_intern_atom_cookie_t atom ## _cookie = xcb_intern_atom(conn, 0, strlen(#atom), #atom);
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#include "atoms.xmacro"
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#undef xmacro
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root_screen = xcb_aux_get_screen(conn, screens);
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root = root_screen->root;
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if (!(modmap_reply = xcb_get_modifier_mapping_reply(conn, modmap_cookie, NULL)))
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errx(EXIT_FAILURE, "Could not get modifier mapping\n");
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xcb_numlock_mask = get_mod_mask_for(XCB_NUM_LOCK, symbols, modmap_reply);
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font = load_font(pattern, true);
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bold_font = load_font(patternbold, true);
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/* Open an input window */
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win = xcb_generate_id(conn);
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||
xcb_create_window(
|
||
conn,
|
||
XCB_COPY_FROM_PARENT,
|
||
win, /* the window id */
|
||
root, /* parent == root */
|
||
490, 297, 300, 205, /* dimensions */
|
||
0, /* X11 border = 0, we draw our own */
|
||
XCB_WINDOW_CLASS_INPUT_OUTPUT,
|
||
XCB_WINDOW_CLASS_COPY_FROM_PARENT, /* copy visual from parent */
|
||
XCB_CW_BACK_PIXEL | XCB_CW_EVENT_MASK,
|
||
(uint32_t[]){
|
||
0, /* back pixel: black */
|
||
XCB_EVENT_MASK_EXPOSURE |
|
||
XCB_EVENT_MASK_BUTTON_PRESS
|
||
});
|
||
|
||
/* Map the window (make it visible) */
|
||
xcb_map_window(conn, win);
|
||
|
||
/* 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;
|
||
}
|