use freedesktop instead of gtk

dash-frontend/src/util/desktop_finder.rs

@@ -1,5 +1,4 @@
-use gio::prelude::{AppInfoExt, IconExt};
-use gtk::traits::IconThemeExt;
+use freedesktop::{ApplicationEntry, IconTheme};
 use serde::{Deserialize, Serialize};
 
 // compatibility with wayvr-ipc
@@ -31,6 +30,8 @@ pub struct EntrySearchCell {
 	pub categories: Vec<String>,
 }
 
+const ICON_SIZE: u32 = 128;
+
 const CMD_BLACKLIST: [&str; 1] = [
 	"lsp-plugins", // LSP Plugins collection. They clutter the application list a lot
 ];
@@ -38,45 +39,32 @@ const CMD_BLACKLIST: [&str; 1] = [
 const CATEGORY_TYPE_BLACKLIST: [&str; 5] = ["GTK", "Qt", "X-XFCE", "X-Bluetooth", "ConsoleOnly"];
 
 pub fn find_entries() -> anyhow::Result<Vec<DesktopEntry>> {
-	let Some(icon_theme) = gtk::IconTheme::default() else {
-		anyhow::bail!("Failed to get current icon theme information");
-	};
-
 	let mut res = Vec::<DesktopEntry>::new();
+	let theme = IconTheme::current();
 
-	let info = gio::AppInfo::all();
-
-	log::debug!("app entry count {}", info.len());
-
-	'outer: for app_entry in info {
+	'outer: for app_entry in ApplicationEntry::all() {
 		let Some(app_entry_id) = app_entry.id() else {
 			log::warn!(
-				"failed to get desktop entry ID for application named \"{}\"",
-				app_entry.name()
+				"No desktop entry id for application \"{}\"",
+				app_entry.name().as_deref().unwrap_or("")
 			);
 			continue;
 		};
 
-		let Some(desktop_app) = gio::DesktopAppInfo::new(&app_entry_id) else {
-			log::warn!(
-				"failed to find desktop app file from application named \"{}\"",
-				app_entry.name()
-			);
+		let Some(name) = app_entry.name() else {
+			log::warn!("No Name on desktop entry {}", app_entry_id);
 			continue;
 		};
 
-		if desktop_app.is_nodisplay() || desktop_app.is_hidden() {
+		let Some(exec) = app_entry.exec() else {
+			log::warn!("No Exec on desktop entry {}", app_entry_id);
+			continue;
+		};
+
+		if app_entry.no_display() || app_entry.is_hidden() || app_entry.terminal() {
 			continue;
 		}
 
-		let Some(cmd) = desktop_app.commandline() else {
-			continue;
-		};
-
-		let name = String::from(desktop_app.name());
-
-		let exec = String::from(cmd.to_string_lossy());
-
 		for blacklisted in CMD_BLACKLIST {
 			if exec.contains(blacklisted) {
 				continue 'outer;
@@ -95,37 +83,17 @@ pub fn find_entries() -> anyhow::Result<Vec<DesktopEntry>> {
 			None => (exec, Vec::new()),
 		};
 
-		let icon_path = match desktop_app.icon() {
-			Some(icon) => {
-				if let Some(icon_str) = icon.to_string() {
-					if let Some(s_icon) = icon_theme.lookup_icon(&icon_str, 128, gtk::IconLookupFlags::GENERIC_FALLBACK) {
-						s_icon.filename().map(|p| String::from(p.to_string_lossy()))
-					} else {
-						None
-					}
-				} else {
-					None
-				}
-			}
-			None => None,
-		};
+		let icon_path = app_entry
+			.icon()
+			.and_then(|icon_name| theme.get_with_size(&icon_name, ICON_SIZE))
+			.and_then(|path_buf| path_buf.into_os_string().into_string().ok());
 
-		let categories: Vec<String> = match desktop_app.categories() {
-			Some(categories) => categories
-				.split(";")
-				.filter(|s| !s.is_empty())
-				.filter(|s| {
-					for b in CATEGORY_TYPE_BLACKLIST {
-						if *s == b {
-							return false;
-						}
-					}
-					true
-				})
-				.map(String::from)
-				.collect(),
-			None => Vec::new(),
-		};
+		let categories = app_entry.categories().map_or_else(Vec::default, |inner| {
+			inner
+				.into_iter()
+				.filter(|s| !(s.is_empty() || CATEGORY_TYPE_BLACKLIST.contains(&s.as_str())))
+				.collect()
+		});
 
 		let entry = DesktopEntry {
 			app_name: name,