very simple alignment of dock on bottom edge

examples/dock/application_object/mod.rs

@@ -0,0 +1,72 @@
+mod imp;
+
+use gdk4::glib::Object;
+use glib::ObjectExt;
+use glib::ToVariant;
+use gtk4::glib;
+
+glib::wrapper! {
+    pub struct ApplicationObject(ObjectSubclass<imp::ApplicationObject>);
+}
+
+impl ApplicationObject {
+    pub fn new(application_search_result: &pop_launcher::SearchResult) -> Self {
+        let self_: Self = Object::new(&[
+            ("id", &application_search_result.id),
+            ("name", &application_search_result.name),
+            ("description", &application_search_result.description),
+        ])
+        .expect("Failed to create `ApplicationObject`.");
+        if let Some(icon) = &application_search_result.icon {
+            if let Err(e) = self_.set_property(
+                "icon",
+                match icon {
+                    pop_launcher::IconSource::Name(name) => {
+                        (pop_launcher::IconSource::Name as i32, name.to_string()).to_variant()
+                    }
+                    pop_launcher::IconSource::Mime(name) => {
+                        (pop_launcher::IconSource::Mime as i32, name.to_string()).to_variant()
+                    }
+                },
+            ) {
+                println!("failed to set icon property");
+                dbg!(e);
+            };
+        }
+        if let Some(icon) = &application_search_result.category_icon {
+            if let Err(e) = self_.set_property(
+                "categoryicon",
+                match icon {
+                    pop_launcher::IconSource::Name(name) => {
+                        (pop_launcher::IconSource::Name as i32, name.to_string()).to_variant()
+                    }
+                    pop_launcher::IconSource::Mime(name) => {
+                        (pop_launcher::IconSource::Mime as i32, name.to_string()).to_variant()
+                    }
+                },
+            ) {
+                println!("failed to set category icon property");
+                dbg!(e);
+            };
+        }
+
+        self_
+    }
+}
+
+// Object holding the state
+pub struct ApplicationData(pop_launcher::SearchResult);
+
+impl Default for ApplicationData {
+    fn default() -> Self {
+        let default_application = pop_launcher::SearchResult {
+            id: 0,
+            name: String::default(),
+            description: String::default(),
+            icon: None,
+            category_icon: None,
+            window: None,
+        };
+        Self(default_application)
+    }
+}