feat(menu): add header menu component

src/view/components/menu.rs

@@ -0,0 +1,81 @@
+use std::fmt::{Debug, Display};
+
+use gtk4 as gtk;
+
+use gio::{
+    glib::Variant, prelude::ActionMapExtManual, ActionEntry, Menu, SimpleAction, SimpleActionGroup,
+};
+
+use gtk::{MenuButton, PopoverMenu};
+
+pub struct HeaderMenu<T> {
+    model: Menu,
+    actions_group: (SimpleActionGroup, Option<T>),
+    button: MenuButton,
+}
+
+impl<T> HeaderMenu<T>
+where
+    T: Into<String> + Debug + Display + Clone,
+{
+    pub fn new() -> Self {
+        let menu_btn = MenuButton::builder().icon_name("open-menu").build();
+        let menu_model = Menu::new();
+        let menu_popover = PopoverMenu::from_model(Some(&menu_model));
+
+        menu_btn.set_popover(Some(&menu_popover));
+
+        let action_group = SimpleActionGroup::new();
+
+        Self {
+            model: menu_model,
+            actions_group: (action_group, None),
+            button: menu_btn,
+        }
+    }
+
+    #[inline]
+    pub fn set_action_group_name(&mut self, name: Option<T>) {
+        self.actions_group.1 = name;
+    }
+
+    #[inline]
+    pub fn get_button(&self) -> &MenuButton {
+        &self.button
+    }
+
+    #[inline]
+    pub fn get_model(&self) -> &Menu {
+        &self.model
+    }
+
+    #[inline]
+    pub fn get_actions_group(&self) -> &SimpleActionGroup {
+        &self.actions_group.0
+    }
+
+    pub fn append_items<Iterable, F>(&self, items: Iterable)
+    where
+        Iterable: IntoIterator<Item = (F, &'static str, &'static str)>,
+        F: Fn(&SimpleAction, Option<&Variant>) + 'static,
+    {
+        for (callback, action_name, action_label) in items {
+            let action = ActionEntry::<SimpleActionGroup>::builder(action_name)
+                .activate(move |_, a, b| callback(a, b))
+                .build();
+
+            let action_path = &*format!(
+                "{}.{}",
+                self.actions_group
+                    .1
+                    .clone()
+                    .expect("ActionGroupName isn't defined"),
+                action_name
+            );
+
+            self.actions_group.0.add_action_entries([action]);
+
+            self.model.append(Some(action_label), Some(action_path));
+        }
+    }
+}

src/view/components/mod.rs

@@ -1,5 +1,6 @@
 pub mod info_bar;
 pub mod input;
+pub mod menu;
 pub mod pages;
 pub mod tabs;
 pub mod wrapper;