diff options
Diffstat (limited to 'xlnch.c')
| -rw-r--r-- | xlnch.c | 389 |
1 files changed, 195 insertions, 194 deletions
@@ -39,8 +39,7 @@ #define FONTNAME "-*-terminus-medium-*-*-*-16-*-*-*-*-*-*-*" -char buf[BUF_SIZE] = "", - cur[BUF_SIZE] = ""; +char buf[BUF_SIZE] = "", cur[BUF_SIZE] = ""; struct lnch_t { int exits; @@ -48,6 +47,7 @@ struct lnch_t { char desc[512]; char cmd[1024]; } lnch[MAX_ENTRIES]; + unsigned int idx = 0; Colormap cm; @@ -56,75 +56,76 @@ GC gc; int screen; Window root, win; XColor red; -XFontStruct * font; +XFontStruct *font; int w_width = 0; int w_height = 0; - void get_curson_pos(int *x, int *y) { - int win_x_return, win_y_return; - unsigned int mask_return; - Window root_return, child_return; + int win_x_return, win_y_return; + unsigned int mask_return; + Window root_return, child_return; - XQueryPointer(display, root, &root_return, &child_return, - x, y, &win_x_return, &win_y_return, &mask_return); + XQueryPointer(display, root, &root_return, &child_return, + x, y, &win_x_return, &win_y_return, &mask_return); } void init() { - XWindowAttributes wa; - XSetWindowAttributes swa; - - display = XOpenDisplay(NULL); - screen = DefaultScreen(display); - root = RootWindow(display, screen); - if (!XGetWindowAttributes(display, root, &wa)) - die("could not get embedding window attributes: 0x%lx", root); - - gc = XCreateGC(display, root, 0, NULL); - XSetLineAttributes(display, gc, 1, LineSolid, CapButt, JoinMiter); - - cm = DefaultColormap(display, screen); - if (! XAllocNamedColor(display, cm, "red", &red, &red)) { - fprintf(stderr, "XAllocNamedColor - failed to allocated 'red' color.\n"); - exit(1); - } - - swa.override_redirect = True; - swa.background_pixel = BlackPixel(display, screen); - swa.event_mask = ExposureMask | KeyPressMask | VisibilityChangeMask; - - int x, y; - get_curson_pos(&x, &y); - - int height = 16 + (9 + 3)*w_height - 3 + 16, - width = 16 + w_width*11; - win = XCreateWindow(display, root, x, y, width, height, 0, - CopyFromParent, CopyFromParent, CopyFromParent, - CWOverrideRedirect | CWBackPixel | CWEventMask, &swa); - - font = XLoadQueryFont(display, FONTNAME); - /* If the font could not be loaded, revert to the "fixed" font. */ - if (!font) { - fprintf (stderr, "unable to load font %s: using fixed\n", FONTNAME); - font = XLoadQueryFont (display, "fixed"); - } - XSetFont(display, gc, font->fid); - - XMapRaised(display, win); - XRaiseWindow(display, win); + XWindowAttributes wa; + XSetWindowAttributes swa; + + display = XOpenDisplay(NULL); + screen = DefaultScreen(display); + root = RootWindow(display, screen); + if (!XGetWindowAttributes(display, root, &wa)) + die("could not get embedding window attributes: 0x%lx", root); + + gc = XCreateGC(display, root, 0, NULL); + XSetLineAttributes(display, gc, 1, LineSolid, CapButt, JoinMiter); + + cm = DefaultColormap(display, screen); + if (!XAllocNamedColor(display, cm, "red", &red, &red)) { + fprintf(stderr, + "XAllocNamedColor - failed to allocated 'red' color.\n"); + exit(1); + } + + swa.override_redirect = True; + swa.background_pixel = BlackPixel(display, screen); + swa.event_mask = ExposureMask | KeyPressMask | VisibilityChangeMask; + + int x, y; + get_curson_pos(&x, &y); + + int height = 16 + (9 + 3) * w_height - 3 + 16, + width = 16 + w_width * 11; + win = XCreateWindow(display, root, x, y, width, height, 0, + CopyFromParent, CopyFromParent, CopyFromParent, + CWOverrideRedirect | CWBackPixel | CWEventMask, + &swa); + + font = XLoadQueryFont(display, FONTNAME); + /* If the font could not be loaded, revert to the "fixed" font. */ + if (!font) { + fprintf(stderr, "unable to load font %s: using fixed\n", FONTNAME); + font = XLoadQueryFont(display, "fixed"); + } + XSetFont(display, gc, font->fid); + + XMapRaised(display, win); + XRaiseWindow(display, win); } void close_x() { XFreeGC(display, gc); - XDestroyWindow(display,win); + XDestroyWindow(display, win); XCloseDisplay(display); } -int parse_line(char * line) +int parse_line(char *line) { char *token; char delim[2] = ":"; @@ -134,85 +135,87 @@ int parse_line(char * line) trim(buf); - if (strlen(line) == 0 || - line[0] == '#') - return 2; + if (strlen(line) == 0 || line[0] == '#') + return 2; lnch[idx].exits = 1; if (line[0] == '&') { - lnch[idx].exits = 0; - line++; + lnch[idx].exits = 0; + line++; } /* Get key entry */ token = strtok(line, delim); if (strlen(token) != 1) - return 1; + return 1; lnch[idx].key = token[0]; - line+=2; // pass the key, pass the `:` + line += 2; // pass the key, pass the `:` /* Get description */ token = strtok(NULL, delim); if (!token) - return 1; + return 1; strcpy(lnch[idx].desc, token); - line+=(strlen(token) + 1); // pass the decription, pass the `:` + line += (strlen(token) + 1); // pass the decription, pass the `:` /* Get command */ strcpy(lnch[idx].cmd, line); /* If description is epmty command becomes the descritpion */ if (!strlen(lnch[idx].cmd)) - strcpy(lnch[idx].cmd, lnch[idx].desc); + strcpy(lnch[idx].cmd, lnch[idx].desc); w_width = MAX((int) strlen(lnch[idx].desc), w_width); idx++; return 0; } - -int run_cmd(char * cmd) +int run_cmd(char *cmd) { wordexp_t p; int rc = wordexp(cmd, &p, 0); switch (rc) { case WRDE_BADCHAR: - printf("Illegal occurrence of newline or one of |, &, ;, <, >, (, ), {, }.\n"); - break; + printf + ("Illegal occurrence of newline or one of |, &, ;, <, >, (, ), {, }.\n"); + break; case WRDE_BADVAL: - printf("An undefined shell variable was referenced, and the WRDE_UNDEF flag told us to consider this an error.\n"); - break; + printf + ("An undefined shell variable was referenced, and the WRDE_UNDEF flag told us to consider this an error.\n"); + break; case WRDE_CMDSUB: - printf("Command substitution requested, but the WRDE_NOCMD flag told us to consider this an error.\n"); - break; + printf + ("Command substitution requested, but the WRDE_NOCMD flag told us to consider this an error.\n"); + break; case WRDE_NOSPACE: - printf("Out of memory.\n"); - break; + printf("Out of memory.\n"); + break; case WRDE_SYNTAX: - printf("Shell syntax error, such as unbalanced parentheses or unmatched quotes.\n"); - break; + printf + ("Shell syntax error, such as unbalanced parentheses or unmatched quotes.\n"); + break; default: - printf("Running:"); - for (size_t i = 0; i < p.we_wordc; i++) { - printf(" %s", p.we_wordv[i]); - } - printf("\n"); - - /* double fork from i3wm's exec implementation */ - if (fork() == 0) { - setsid(); - if (fork() == 0) { - execvp(p.we_wordv[0], p.we_wordv); - /* never reached */ - } - _exit(EXIT_SUCCESS); - } - wait(0); + printf("Running:"); + for (size_t i = 0; i < p.we_wordc; i++) { + printf(" %s", p.we_wordv[i]); + } + printf("\n"); + + /* double fork from i3wm's exec implementation */ + if (fork() == 0) { + setsid(); + if (fork() == 0) { + execvp(p.we_wordv[0], p.we_wordv); + /* never reached */ + } + _exit(EXIT_SUCCESS); + } + wait(0); } wordfree(&p); return rc; @@ -220,49 +223,48 @@ int run_cmd(char * cmd) void grabfocus() { - struct timespec ts = { .tv_sec = 0, .tv_nsec = 10000000 }; - Window focuswin; - int i, revertwin; - - for (i = 0; i < 100; ++i) { - XGetInputFocus(display, &focuswin, &revertwin); - if (focuswin == win) - return; - XSetInputFocus(display, win, RevertToParent, CurrentTime); - nanosleep(&ts, NULL); - } - printf("cannot grab focus\n"); + struct timespec ts = {.tv_sec = 0,.tv_nsec = 10000000 }; + Window focuswin; + int i, revertwin; + + for (i = 0; i < 100; ++i) { + XGetInputFocus(display, &focuswin, &revertwin); + if (focuswin == win) + return; + XSetInputFocus(display, win, RevertToParent, CurrentTime); + nanosleep(&ts, NULL); + } + printf("cannot grab focus\n"); } void grabkeyboard() { - struct timespec ts = { .tv_sec = 0, .tv_nsec = 1000000 }; - int i; - - /* try to grab keyboard, we may have to wait for another process to ungrab */ - for (i = 0; i < 1000; i++) { - if (XGrabKeyboard(display, root, True, GrabModeAsync, - GrabModeAsync, CurrentTime) == GrabSuccess) - return; - nanosleep(&ts, NULL); - } - printf("Cannot grab keyboard\n"); + struct timespec ts = {.tv_sec = 0,.tv_nsec = 1000000 }; + int i; + + /* try to grab keyboard, we may have to wait for another process to ungrab */ + for (i = 0; i < 1000; i++) { + if (XGrabKeyboard(display, root, True, GrabModeAsync, + GrabModeAsync, CurrentTime) == GrabSuccess) + return; + nanosleep(&ts, NULL); + } + printf("Cannot grab keyboard\n"); } void draw_text() { - char text[2048]; - int x = 10, y = 2; - for (unsigned int i = 0; i < idx; i++) { - if (lnch[i].exits) { - XSetForeground(display,gc,WhitePixel(display,screen)); - } - else { - XSetForeground(display,gc,red.pixel); + char text[2048]; + int x = 10, y = 2; + for (unsigned int i = 0; i < idx; i++) { + if (lnch[i].exits) { + XSetForeground(display, gc, WhitePixel(display, screen)); + } else { + XSetForeground(display, gc, red.pixel); + } + sprintf(text, "%c: %s", lnch[i].key, lnch[i].desc); + XDrawString(display, win, gc, x, y += 13, text, strlen(text)); } - sprintf(text, "%c: %s", lnch[i].key, lnch[i].desc); - XDrawString(display,win,gc,x,y+=13, text, strlen(text)); - } } int run() @@ -278,93 +280,92 @@ int run() grabkeyboard(); grabfocus(); - while(1) { - XNextEvent(display, &event); - - if (event.type==Expose && event.xexpose.count==0) { - /* the window was exposed redraw it! */ - XClearWindow(display, win); - draw_text(); - } - - /* Keep window in view */ - else if (event.type==VisibilityNotify && - event.xvisibility.state != VisibilityUnobscured) - XRaiseWindow(display, win); - - else if (event.type==KeyPress) { - /* C-g and ESC quit */ - if ((event.xkey.state == 4 && event.xkey.keycode == 42) /* => C-g */ - || event.xkey.keycode == 9) { /* => ESC */ - close_x(); - return 0; - } - - XLookupString(&event.xkey, text, 255, &keysym, 0); - flag = 0; - - for (unsigned int i = 0; i < idx; i++) { - if (lnch[i].key == text[0]) { - rc = run_cmd(lnch[i].cmd); - flag = 1; - if (lnch[i].exits) { - close_x(); - return rc; - } - } - } - - /* Q and q quit as well, as long as they don't match anything */ - if (!flag - && event.xkey.keycode == 24) { /* Q or q */ - close_x(); - return 0; - } - } - - else if (event.type==FocusIn) { - if (event.xfocus.window != win) { - grabfocus(); - } - } + while (1) { + XNextEvent(display, &event); + + if (event.type == Expose && event.xexpose.count == 0) { + /* the window was exposed redraw it! */ + XClearWindow(display, win); + draw_text(); + } + + /* Keep window in view */ + else if (event.type == VisibilityNotify && + event.xvisibility.state != VisibilityUnobscured) + XRaiseWindow(display, win); + + else if (event.type == KeyPress) { + /* C-g and ESC quit */ + if ((event.xkey.state == 4 && event.xkey.keycode == 42) /* => C-g */ + ||event.xkey.keycode == 9) { /* => ESC */ + close_x(); + return 0; + } + + XLookupString(&event.xkey, text, 255, &keysym, 0); + flag = 0; + + for (unsigned int i = 0; i < idx; i++) { + if (lnch[i].key == text[0]) { + rc = run_cmd(lnch[i].cmd); + flag = 1; + if (lnch[i].exits) { + close_x(); + return rc; + } + } + } + + /* Q and q quit as well, as long as they don't match anything */ + if (!flag && event.xkey.keycode == 24) { /* Q or q */ + close_x(); + return 0; + } + } + + else if (event.type == FocusIn) { + if (event.xfocus.window != win) { + grabfocus(); + } + } } } -int main (int argc, char *argv[]) +int main(int argc, char *argv[]) { int rc, n = 1; FILE *f; if ((argc > 1) && - (!strcmp(argv[1], "--help") || - !strcmp(argv[1], "-h") || - !strcmp(argv[1], "-?"))) { - printf("Usage:\n%s [xlnchrc]\n", argv[0]); - printf("\nxlnchrc format:\n[&]<key>:[<description>]:<command>\n"); - return 0; + (!strcmp(argv[1], "--help") || + !strcmp(argv[1], "-h") || !strcmp(argv[1], "-?"))) { + printf("Usage:\n%s [xlnchrc]\n", argv[0]); + printf("\nxlnchrc format:\n[&]<key>:[<description>]:<command>\n"); + return 0; } if (argc == 1 || !strcmp(argv[1], "-")) - f = stdin; + f = stdin; else { - f = fopen(argv[1], "r"); - if (!f) - die("Cannot open file %s", argv[1]); + f = fopen(argv[1], "r"); + if (!f) + die("Cannot open file %s", argv[1]); } while (fgets(buf, BUF_SIZE, f)) { - rc = parse_line(buf); - if (rc == 1) { - fprintf(stderr, "%s:%d: cannot parse ‘%s’\n", - argc == 1 || !strcmp(argv[1], "-") ? "stdin": argv[1], n, cur); - } - else if (rc == 0) { - w_height++; - } - n++; + rc = parse_line(buf); + if (rc == 1) { + fprintf(stderr, "%s:%d: cannot parse ‘%s’\n", + argc == 1 + || !strcmp(argv[1], "-") ? "stdin" : argv[1], n, cur); + } else if (rc == 0) { + w_height++; + } + n++; } - if (f != stdin) fclose(f); + if (f != stdin) + fclose(f); return run(); } |