add active list to dock object

examples/dock/dock_object/mod.rs

@@ -0,0 +1,51 @@
+mod imp;
+
+use crate::utils::BoxedSearchResults;
+use gdk4::glib::Object;
+use gio::DesktopAppInfo;
+use gtk4::glib;
+use gtk4::prelude::AppInfoExt;
+
+glib::wrapper! {
+    pub struct DockObject(ObjectSubclass<imp::DockObject>);
+}
+
+impl DockObject {
+    pub fn new(appinfo: DesktopAppInfo) -> Self {
+        Object::new(&[("appinfo", &Some(appinfo))]).expect("Failed to create `DockObject`.")
+    }
+
+    pub fn from_search_results(results: BoxedSearchResults) -> Self {
+        let appinfo = xdg::BaseDirectories::new()
+            .expect("could not access XDG Base directory")
+            .get_data_dirs()
+            .iter_mut()
+            .filter_map(|xdg_data_path| {
+                let defaults = ["Firefox Web Browser", "Files", "Terminal", "Pop!_Shop"];
+                xdg_data_path.push("applications");
+                dbg!(&xdg_data_path);
+                std::fs::read_dir(xdg_data_path).ok()
+            })
+            .flatten()
+            .filter_map(|dir_entry| {
+                let defaults = ["Firefox Web Browser", "Files", "Terminal", "Pop!_Shop"];
+                if let Ok(dir_entry) = dir_entry {
+                    if let Some(path) = dir_entry.path().file_name() {
+                        if let Some(path) = path.to_str() {
+                            if let Some(app_info) = gio::DesktopAppInfo::new(path) {
+                                if app_info.should_show()
+                                    && defaults.contains(&app_info.name().as_str())
+                                {
+                                    return Some(DockObject::new(app_info));
+                                }
+                            }
+                        }
+                    }
+                }
+                None
+            })
+            .next();
+        Object::new(&[("appinfo", &appinfo), ("active", &results)])
+            .expect("Failed to create `DockObject`.")
+    }
+}