diff options
Diffstat (limited to 'launcher.c')
| -rw-r--r-- | launcher.c | 262 |
1 files changed, 262 insertions, 0 deletions
diff --git a/launcher.c b/launcher.c new file mode 100644 index 0000000..9c77958 --- /dev/null +++ b/launcher.c @@ -0,0 +1,262 @@ +#define _GNU_SOURCE +#define _POSIX_C_SOURCE 200809L +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <dirent.h> +#include <ctype.h> + +#include <X11/Xlib.h> +#include <X11/Xutil.h> +#include <X11/keysym.h> + +#include "glitch.h" +#include "config.h" + +extern WindowManager wm; + +static void launcher_filter(void); + +static char *trim_whitespace(char *str) { + char *end; + while (isspace((unsigned char)*str)) str++; + if (*str == 0) return str; + end = str + strlen(str) - 1; + while (end > str && isspace((unsigned char)*end)) end--; + end[1] = '\0'; + return str; +} + +static void load_applications(void) { + const char *system_dirs[] = { + "/usr/share/applications", + "/usr/local/share/applications" + }; + + char home_dir[1024]; + char *home = getenv("HOME"); + if (home) { + snprintf(home_dir, sizeof(home_dir), "%s/.local/share/applications", home); + } + + if (wm.launcher_items) { + for (int i = 0; i < wm.launcher_items_count; i++) { + free(wm.launcher_items[i].name); + free(wm.launcher_items[i].exec); + } + free(wm.launcher_items); + wm.launcher_items = NULL; + wm.launcher_items_count = 0; + } + + int capacity = 100; + wm.launcher_items = malloc(sizeof(LauncherItem) * capacity); + + for (int d = -1; d < (int)LENGTH(system_dirs); d++) { + const char *path_to_open; + if (d == -1) { + if (!home) continue; + path_to_open = home_dir; + } else { + path_to_open = system_dirs[d]; + } + + DIR *dir = opendir(path_to_open); + if (!dir) continue; + + struct dirent *entry; + while ((entry = readdir(dir))) { + if (strstr(entry->d_name, ".desktop")) { + char desktop_path[2048]; + snprintf(desktop_path, sizeof(desktop_path), "%s/%s", path_to_open, entry->d_name); + + FILE *f = fopen(desktop_path, "r"); + if (!f) continue; + + char line[1024]; + char *name = NULL; + char *exec = NULL; + int no_display = 0; + int in_desktop_entry = 0; + + while (fgets(line, sizeof(line), f)) { + char *trimmed = trim_whitespace(line); + if (trimmed[0] == '[' && strstr(trimmed, "[Desktop Entry]")) { + in_desktop_entry = 1; + continue; + } + if (trimmed[0] == '[' && !strstr(trimmed, "[Desktop Entry]")) { + in_desktop_entry = 0; + } + + if (!in_desktop_entry) continue; + + if (strncmp(trimmed, "Name=", 5) == 0 && !name) { + name = strdup(trim_whitespace(trimmed + 5)); + } else if (strncmp(trimmed, "Exec=", 5) == 0 && !exec) { + char *e = strdup(trimmed + 5); + char *percent = strchr(e, '%'); + if (percent) *percent = '\0'; + exec = strdup(trim_whitespace(e)); + free(e); + } else if (strncmp(trimmed, "NoDisplay=true", 14) == 0) { + no_display = 1; + } + } + fclose(f); + + if (name && exec && !no_display) { + if (wm.launcher_items_count >= capacity) { + capacity *= 2; + wm.launcher_items = realloc(wm.launcher_items, sizeof(LauncherItem) * capacity); + } + wm.launcher_items[wm.launcher_items_count].name = name; + wm.launcher_items[wm.launcher_items_count].exec = exec; + wm.launcher_items_count++; + } else { + if (name) free(name); + if (exec) free(exec); + } + } + } + closedir(dir); + } +} + +void toggle_launcher(const Arg *arg) { + (void)arg; + if (wm.launcher_active) { + wm.launcher_active = 0; + XUnmapWindow(wm.dpy, wm.launcher_win); + XUngrabKeyboard(wm.dpy, CurrentTime); + return; + } + + if (!wm.launcher_items) { + load_applications(); + } + + wm.launcher_active = 1; + wm.launcher_search[0] = '\0'; + wm.launcher_selected = 0; + launcher_filter(); + + int screen_width = DisplayWidth(wm.dpy, wm.screen); + int screen_height = DisplayHeight(wm.dpy, wm.screen); + int win_width = launcher_width; + int win_height = launcher_height; + int x = (screen_width - win_width) / 2; + int y = (screen_height - win_height) / 2; + + if (!wm.launcher_win) { + XSetWindowAttributes wa; + wa.override_redirect = True; + wa.background_pixel = wm.xft_launcher_bg.pixel; + wa.border_pixel = wm.xft_launcher_border.pixel; + wm.launcher_win = XCreateWindow(wm.dpy, wm.root, x, y, win_width, win_height, 2, + DefaultDepth(wm.dpy, wm.screen), CopyFromParent, + DefaultVisual(wm.dpy, wm.screen), + CWOverrideRedirect | CWBackPixel | CWBorderPixel, &wa); + } else { + XMoveWindow(wm.dpy, wm.launcher_win, x, y); + } + + XMapRaised(wm.dpy, wm.launcher_win); + XGrabKeyboard(wm.dpy, wm.launcher_win, True, GrabModeAsync, GrabModeAsync, CurrentTime); + launcher_draw(); +} + +static void launcher_filter(void) { + if (wm.launcher_filtered) free(wm.launcher_filtered); + wm.launcher_filtered = malloc(sizeof(LauncherItem *) * wm.launcher_items_count); + wm.launcher_filtered_count = 0; + + for (int i = 0; i < wm.launcher_items_count; i++) { + if (wm.launcher_search[0] == '\0' || + strcasestr(wm.launcher_items[i].name, wm.launcher_search)) { + wm.launcher_filtered[wm.launcher_filtered_count++] = &wm.launcher_items[i]; + } + } + + if (wm.launcher_selected >= wm.launcher_filtered_count) { + wm.launcher_selected = wm.launcher_filtered_count > 0 ? wm.launcher_filtered_count - 1 : 0; + } +} + +void launcher_handle_key(void) { + KeySym keysym = XLookupKeysym(&wm.ev.xkey, 0); + int len = strlen(wm.launcher_search); + + if (keysym == XK_Escape) { + toggle_launcher(NULL); + return; + } else if (keysym == XK_BackSpace) { + if (len > 0) { + wm.launcher_search[len - 1] = '\0'; + wm.launcher_selected = 0; + launcher_filter(); + } + } else if (keysym == XK_Return) { + if (wm.launcher_filtered_count > 0 && wm.launcher_selected < wm.launcher_filtered_count) { + execute_shortcut(wm.launcher_filtered[wm.launcher_selected]->exec); + toggle_launcher(NULL); + return; + } + } else if (keysym == XK_Up) { + if (wm.launcher_selected > 0) wm.launcher_selected--; + } else if (keysym == XK_Down) { + if (wm.launcher_selected < wm.launcher_filtered_count - 1) wm.launcher_selected++; + } else { + char buf[32]; + int n = XLookupString(&wm.ev.xkey, buf, sizeof(buf), NULL, NULL); + if (n > 0 && len + n < (int)sizeof(wm.launcher_search)) { + memcpy(wm.launcher_search + len, buf, n); + wm.launcher_search[len + n] = '\0'; + wm.launcher_selected = 0; + launcher_filter(); + } + } + + launcher_draw(); +} + +void launcher_draw(void) { + if (!wm.launcher_win) return; + + XftDraw *draw = XftDrawCreate(wm.dpy, wm.launcher_win, DefaultVisual(wm.dpy, wm.screen), wm.cmap); + XWindowAttributes wa; + XGetWindowAttributes(wm.dpy, wm.launcher_win, &wa); + + // Clear background + XftDrawRect(draw, &wm.xft_launcher_bg, 0, 0, wa.width, wa.height); + + int x = 20; + int y = 30; + int row_height = wm.launcher_font->height + 10; + + // Draw search bar + char search_display[300]; + snprintf(search_display, sizeof(search_display), "> %s", wm.launcher_search); + XftDrawStringUtf8(draw, &wm.xft_launcher_fg, wm.launcher_font, x, y, (FcChar8 *)search_display, strlen(search_display)); + + y += row_height + 10; // Extra padding below input + + // Draw items + int start_idx = 0; + if (wm.launcher_selected >= 10) { + start_idx = wm.launcher_selected - 9; + } + + for (int i = start_idx; i < wm.launcher_filtered_count && i < start_idx + 15; i++) { + if (i == wm.launcher_selected) { + XftDrawRect(draw, &wm.xft_launcher_hl_bg, 0, y - wm.launcher_font->ascent - 5, wa.width, row_height); + XftDrawStringUtf8(draw, &wm.xft_launcher_hl_fg, wm.launcher_font, x, y, (FcChar8 *)wm.launcher_filtered[i]->name, strlen(wm.launcher_filtered[i]->name)); + } else { + XftDrawStringUtf8(draw, &wm.xft_launcher_fg, wm.launcher_font, x, y, (FcChar8 *)wm.launcher_filtered[i]->name, strlen(wm.launcher_filtered[i]->name)); + } + y += row_height; + } + + XftDrawDestroy(draw); + XFlush(wm.dpy); +} |