move tab open action to separated mod

src/app/browser/window/tab/action/append.rs

@@ -0,0 +1,41 @@
+use gtk::{
+    gio::SimpleAction,
+    glib::{uuid_string_random, GString},
+    prelude::ActionExt,
+};
+
+/// [SimpleAction](https://docs.gtk.org/gio/class.SimpleAction.html) wrapper for `Close` action of `Browser` group
+pub struct Append {
+    gobject: SimpleAction,
+}
+
+impl Append {
+    // Constructors
+
+    /// Create new `Self`
+    pub fn new() -> Self {
+        Self {
+            gobject: SimpleAction::new(&uuid_string_random(), None),
+        }
+    }
+
+    // Events
+
+    /// Define callback function for
+    /// [SimpleAction::activate](https://docs.gtk.org/gio/signal.SimpleAction.activate.html) signal
+    pub fn connect_activate(&self, callback: impl Fn() + 'static) {
+        self.gobject.connect_activate(move |_, _| callback());
+    }
+
+    // Getters
+
+    /// Get reference to [SimpleAction](https://docs.gtk.org/gio/class.SimpleAction.html) GObject
+    pub fn gobject(&self) -> &SimpleAction {
+        &self.gobject
+    }
+
+    /// Get auto-generated [action name](https://docs.gtk.org/gio/property.SimpleAction.name.html)
+    pub fn id(&self) -> GString {
+        self.gobject.name()
+    }
+}