InAppNotification: Allow to set a custom timer

This allows for a custom timer to be set before the
callback will be run. Currently all the callbacks only
run once and then retunr glib::Continue(false) but this
would allow for setting a low timer and have a callback
that would determine if it needs to be run again, Continue(true),
in a relative responsive way.

podcasts-gtk/src/app.rs

@@ -307,7 +307,7 @@ impl App {
                     error!("An error notification was triggered: {}", err);
                     let callback = || glib::Continue(false);
                     let undo_cb: Option<fn()> = None;
-                    let notif = InAppNotification::new(&err, callback, undo_cb);
+                    let notif = InAppNotification::new(&err, 6, callback, undo_cb);
                     notif.show(&self.overlay);
                 }
                 Action::InitEpisode(rowid) => {

podcasts-gtk/src/widgets/appnotif.rs

@@ -39,7 +39,12 @@ impl Default for InAppNotification {
 }
 
 impl InAppNotification {
-    pub(crate) fn new<F, U>(text: &str, mut callback: F, undo_callback: Option<U>) -> Self
+    pub(crate) fn new<F, U>(
+        text: &str,
+        timer: u32,
+        mut callback: F,
+        undo_callback: Option<U>,
+    ) -> Self
     where
         F: FnMut() -> glib::Continue + 'static,
         U: Fn() + 'static,
@@ -48,10 +53,16 @@ impl InAppNotification {
         notif.text.set_text(&text);
 
         let revealer_weak = notif.revealer.downgrade();
-        let id = timeout_add_seconds(6, move || {
+        let mut time = 0;
+        let id = timeout_add_seconds(1, move || {
+            if time < timer {
+                time += 1;
+                return glib::Continue(true);
+            };
+
             let revealer = match revealer_weak.upgrade() {
                 Some(r) => r,
-                None => return,
+                None => return glib::Continue(false),
             };
 
             revealer.set_reveal_child(false);

podcasts-gtk/src/widgets/show_menu.rs

@@ -145,7 +145,7 @@ pub(crate) fn mark_all_notif(pd: Arc<Show>, sender: &Sender<Action>) -> InAppNot
 
     let undo_callback = clone!(sender => move || sender.send(Action::RefreshWidgetIfSame(id)));
     let text = i18n("Marked all episodes as listened");
-    InAppNotification::new(&text, callback, Some(undo_callback))
+    InAppNotification::new(&text, 6, callback, Some(undo_callback))
 }
 
 pub(crate) fn remove_show_notif(pd: Arc<Show>, sender: Sender<Action>) -> InAppNotification {
@@ -177,5 +177,5 @@ pub(crate) fn remove_show_notif(pd: Arc<Show>, sender: Sender<Action>) -> InAppN
         sender.send(Action::RefreshEpisodesView);
     };
 
-    InAppNotification::new(&text, callback, Some(undo_callback))
+    InAppNotification::new(&text, 6, callback, Some(undo_callback))
 }