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Icon lookup, .desktop parsing, installed app list, and launch helpers.

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Icon lookup

if (otter_desktop.findIcon(allocator, "firefox")) |path| {
    defer allocator.free(path);
}

var cache = otter_desktop.IconCache.init(allocator);
const path = cache.lookup("firefox");
Search order:
  1. Preferred themes (Papirus, Breeze, Adwaita, hicolor, etc.) with SVG preferred over PNG
  2. Remaining themes on disk
  3. Pixmaps directories
  4. .desktop Icon= fallback (exact filename, then directory scan for AppImages)
Base paths include XDG data home, /usr/share/icons, and Flatpak export trees.

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Desktop entries

var entry = try otter_desktop.applications.desktop_entry.parse(allocator, path, .{});
defer entry.deinit();
// entry.name, entry.exec, entry.icon, Terminal flag, etc.
Locale-aware Name and Comment resolution follows XDG rules.

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Application list

var apps = try otter_desktop.applications.AppList.initWithWatcher(allocator);
try apps.scan();
apps.subscribe(onAppsChanged, &ctx);
AppDirWatcher uses otter-utils inotify on XDG applications directories.

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Launcher

try otter_desktop.applications.launcher.launch(allocator, &entry);
Expands %f, %u, %i exec fields. Terminal=true entries spawn through detected terminal ($TERMINAL, then foot, otter-term, kitty, etc.).