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initial commit of the i3-config-wizard (GUI working, functionality incomplete)

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Michael Stapelberg
2011-05-01 00:26:10 +02:00
parent 8b21812bbd
commit 2491a155ee
7 changed files with 827 additions and 4 deletions
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i3-config-wizard/main.c Normal file
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/*
* vim:ts=4:sw=4:expandtab
*
* i3 - an improved dynamic tiling window manager
*
* © 2011 Michael Stapelberg and contributors
*
* See file LICENSE for license information.
*
* i3-config-wizard: Program to convert configs using keycodes to configs using
* keysyms.
*
*/
#include <ev.h>
#include <stdio.h>
#include <sys/types.h>
#include <stdlib.h>
#include <stdbool.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <err.h>
#include <stdint.h>
#include <getopt.h>
#include <limits.h>
#include <xcb/xcb.h>
#include <xcb/xcb_aux.h>
#include <xcb/xcb_event.h>
#include <xcb/xcb_keysyms.h>
#include <X11/Xlib.h>
#include <X11/keysym.h>
#define FREE(pointer) do { \
if (pointer != NULL) { \
free(pointer); \
pointer = NULL; \
} \
} \
while (0)
#include "xcb.h"
enum { STEP_WELCOME, STEP_GENERATE } current_step = STEP_WELCOME;
enum { MOD_ALT, MOD_SUPER } modifier = MOD_SUPER;
static xcb_connection_t *conn;
static uint32_t font_id;
static uint32_t font_bold_id;
static char *socket_path;
static int sockfd;
static int font_height;
static int font_bold_height;
static xcb_window_t win;
static xcb_pixmap_t pixmap;
static xcb_gcontext_t pixmap_gc;
static xcb_key_symbols_t *symbols;
xcb_window_t root;
Display *dpy;
static void finish();
/*
* Try to get the socket path from X11 and return NULL if it doesn’t work.
* As i3-msg is a short-running tool, we don’t bother with cleaning up the
* connection and leave it up to the operating system on exit.
*
*/
static char *socket_path_from_x11() {
xcb_connection_t *conn;
int screen;
if ((conn = xcb_connect(NULL, &screen)) == NULL ||
xcb_connection_has_error(conn))
return NULL;
xcb_screen_t *root_screen = xcb_aux_get_screen(conn, screen);
xcb_window_t root = root_screen->root;
xcb_intern_atom_cookie_t atom_cookie;
xcb_intern_atom_reply_t *atom_reply;
atom_cookie = xcb_intern_atom(conn, 0, strlen("I3_SOCKET_PATH"), "I3_SOCKET_PATH");
atom_reply = xcb_intern_atom_reply(conn, atom_cookie, NULL);
if (atom_reply == NULL)
return NULL;
xcb_get_property_cookie_t prop_cookie;
xcb_get_property_reply_t *prop_reply;
prop_cookie = xcb_get_property_unchecked(conn, false, root, atom_reply->atom,
XCB_GET_PROPERTY_TYPE_ANY, 0, PATH_MAX);
prop_reply = xcb_get_property_reply(conn, prop_cookie, NULL);
if (prop_reply == NULL || xcb_get_property_value_length(prop_reply) == 0)
return NULL;
if (asprintf(&socket_path, "%.*s", xcb_get_property_value_length(prop_reply),
(char*)xcb_get_property_value(prop_reply)) == -1)
return NULL;
return socket_path;
}
/*
* Handles expose events, that is, draws the window contents.
*
*/
static int handle_expose() {
/* re-draw the background */
xcb_rectangle_t border = {0, 0, 300, (15*font_height) + 8},
inner = {2, 2, 296, (15*font_height) + 8 - 4};
xcb_change_gc_single(conn, pixmap_gc, XCB_GC_FOREGROUND, get_colorpixel(conn, "#285577"));
xcb_poly_fill_rectangle(conn, pixmap, pixmap_gc, 1, &border);
xcb_change_gc_single(conn, pixmap_gc, XCB_GC_FOREGROUND, get_colorpixel(conn, "#000000"));
xcb_poly_fill_rectangle(conn, pixmap, pixmap_gc, 1, &inner);
xcb_change_gc_single(conn, pixmap_gc, XCB_GC_FONT, font_id);
#define txt(x, row, text) xcb_image_text_8(conn, strlen(text), pixmap, pixmap_gc, x, (row * font_height) + 2, text)
if (current_step == STEP_WELCOME) {
/* restore font color */
xcb_change_gc_single(conn, pixmap_gc, XCB_GC_FOREGROUND, get_colorpixel(conn, "#FFFFFF"));
txt(10, 1, "i3: first configuration");
txt(10, 4, "You have not configured i3 yet.");
txt(10, 5, "Do you want me to generate ~/.i3/config?");
txt(85, 8, "Yes, generate ~/.i3/config");
txt(85, 10, "No, I will use the defaults");
/* green */
xcb_change_gc_single(conn, pixmap_gc, XCB_GC_FOREGROUND, get_colorpixel(conn, "#00FF00"));
txt(25, 8, "<Enter>");
/* red */
xcb_change_gc_single(conn, pixmap_gc, XCB_GC_FOREGROUND, get_colorpixel(conn, "#FF0000"));
txt(31, 10, "<ESC>");
}
if (current_step == STEP_GENERATE) {
xcb_change_gc_single(conn, pixmap_gc, XCB_GC_FOREGROUND, get_colorpixel(conn, "#FFFFFF"));
txt(10, 1, "i3: generate config");
txt(10, 4, "Please choose either:");
txt(85, 6, "Win as default modifier");
txt(85, 7, "Alt as default modifier");
txt(10, 9, "Afterwards, press");
txt(85, 11, "to write ~/.i3/config");
txt(85, 12, "to abort");
/* the not-selected modifier */
if (modifier == MOD_SUPER)
txt(31, 7, "<Alt>");
else txt(31, 6, "<Win>");
/* the selected modifier */
xcb_change_gc_single(conn, pixmap_gc, XCB_GC_FONT, font_bold_id);
if (modifier == MOD_SUPER)
txt(31, 6, "<Win>");
else txt(31, 7, "<Alt>");
/* green */
uint32_t mask = XCB_GC_FOREGROUND | XCB_GC_FONT;
uint32_t values[] = { get_colorpixel(conn, "#00FF00"), font_id };
xcb_change_gc(conn, pixmap_gc, mask, values);
txt(25, 11, "<Enter>");
/* red */
xcb_change_gc_single(conn, pixmap_gc, XCB_GC_FOREGROUND, get_colorpixel(conn, "#FF0000"));
txt(31, 12, "<ESC>");
}
/* Copy the contents of the pixmap to the real window */
xcb_copy_area(conn, pixmap, win, pixmap_gc, 0, 0, 0, 0, /* */ 500, 500);
xcb_flush(conn);
return 1;
}
static int handle_key_press(void *ignored, xcb_connection_t *conn, xcb_key_press_event_t *event) {
printf("Keypress %d, state raw = %d\n", event->detail, event->state);
xcb_keysym_t sym = xcb_key_press_lookup_keysym(symbols, event, event->state);
printf("sym = %c (%d)\n", sym, sym);
if (sym == XK_Return) {
if (current_step == STEP_WELCOME)
current_step = STEP_GENERATE;
else finish();
}
/* cancel any time */
if (sym == XK_Escape)
exit(0);
if (sym == XK_Alt_L)
modifier = MOD_ALT;
if (sym == XK_Super_L)
modifier = MOD_SUPER;
handle_expose();
return 1;
}
static void finish() {
printf("finishing the wizard\n");
#if 0
dpy = XOpenDisplay(NULL);
FILE *kc_config = fopen("../i3.config.kc", "r");
char *line = NULL;
size_t len = 0;
ssize_t read;
while ((read = getline(&line, &len, kc_config)) != -1) {
/* See if that line is interesting by skipping leading whitespaces,
* then checking for 'bindcode' */
char *walk = line;
while (isspace(*walk) && walk < (line + len))
walk++;
if (strncmp(walk, "bindcode", strlen("bindcode")) != 0)
continue;
char *result = rewrite_binding(walk);
printf("in: %s", walk);
printf("out: %s", result);
free(result);
}
free(line);
fclose(kc_config);
exit(0);
#endif
exit(0);
}
int main(int argc, char *argv[]) {
socket_path = getenv("I3SOCK");
char *pattern = "-misc-fixed-medium-r-normal--13-120-75-75-C-70-iso10646-1";
char *patternbold = "-misc-fixed-bold-r-normal--13-120-75-75-C-70-iso10646-1";
int o, option_index = 0;
static struct option long_options[] = {
{"socket", required_argument, 0, 's'},
{"version", no_argument, 0, 'v'},
{"limit", required_argument, 0, 'l'},
{"prompt", required_argument, 0, 'P'},
{"prefix", required_argument, 0, 'p'},
{"font", required_argument, 0, 'f'},
{"help", no_argument, 0, 'h'},
{0, 0, 0, 0}
};
char *options_string = "s:vh";
while ((o = getopt_long(argc, argv, options_string, long_options, &option_index)) != -1) {
switch (o) {
case 's':
FREE(socket_path);
socket_path = strdup(optarg);
break;
case 'v':
printf("i3-config-wizard " I3_VERSION);
return 0;
case 'h':
printf("i3-config-wizard " I3_VERSION);
printf("i3-config-wizard [-s <socket>] [-v]\n");
return 0;
}
}
if (socket_path == NULL)
socket_path = socket_path_from_x11();
if (socket_path == NULL)
socket_path = "/tmp/i3-ipc.sock";
int screens;
conn = xcb_connect(NULL, &screens);
if (xcb_connection_has_error(conn))
errx(1, "Cannot open display\n");
xcb_screen_t *root_screen = xcb_aux_get_screen(conn, screens);
root = root_screen->root;
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);
/* 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);
/* Set input focus (we have override_redirect=1, so the wm will not do
* this for us) */
xcb_set_input_focus(conn, XCB_INPUT_FOCUS_POINTER_ROOT, win, XCB_CURRENT_TIME);
/* 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_EXPOSE:
handle_expose();
break;
}
free(event);
}
return 0;
}