ShowWidget: Add a proggress_bar to indicate loading status of episode widgets

hammond-gtk/resources/gtk/show_widget.ui

@@ -34,6 +34,18 @@ Tobias Bernard
     <property name="visible">True</property>
     <property name="can_focus">False</property>
     <property name="orientation">vertical</property>
+    <child>
+      <object class="GtkProgressBar" id="progress_bar">
+        <property name="can_focus">False</property>
+        <property name="no_show_all">True</property>
+      </object>
+      <packing>
+        <property name="expand">False</property>
+        <property name="fill">True</property>
+        <property name="pack_type">end</property>
+        <property name="position">0</property>
+      </packing>
+    </child>
     <child>
       <object class="GtkScrolledWindow" id="scrolled_window">
         <property name="name">scrolled_window</property>
@@ -277,7 +289,7 @@ Tobias Bernard
       <packing>
         <property name="expand">True</property>
         <property name="fill">True</property>
-        <property name="position">0</property>
+        <property name="position">2</property>
       </packing>
     </child>
   </object>

hammond-gtk/src/app.rs

@@ -151,7 +151,6 @@ impl App {
         WindowGeometry::from_settings(&self.settings).apply(&self.window);
 
         let window = self.window.clone();
-
         self.app_instance.connect_startup(move |app| {
             build_ui(&window, app);
         });
@@ -175,8 +174,8 @@ impl App {
                     content
                         .get_shows()
                         .replace_widget(pd.clone())
-                        .map_err(|err| error!("Failed to update ShowWidget: {}", err))
-                        .map_err(|_| error!("Failed ot update ShowWidget {}", pd.title()))
+                        .map_err(|err| error!("Error: {}", err))
+                        .map_err(|_| error!("Failed to update ShowWidget of {}", pd.title()))
                         .ok();
                 }
                 Ok(Action::ShowWidgetAnimated) => content.get_shows().switch_widget_animated(),

hammond-gtk/src/stacks/show.rs

@@ -69,7 +69,6 @@ impl ShowStack {
             .downcast::<gtk::Box>()
             .map_err(|_| format_err!("Failed to downcast stack child to a Box."))?;
         debug!("Name: {:?}", WidgetExt::get_name(&old));
-
         let scrolled_window = old.get_children()
             .first()
             .ok_or_else(|| format_err!("Box container has no childs."))?

hammond-gtk/src/widgets/show.rs

@@ -29,6 +29,7 @@ pub struct ShowWidget {
     settings: gtk::MenuButton,
     unsub: gtk::Button,
     episodes: gtk::ListBox,
+    progress_bar: gtk::ProgressBar,
 }
 
 impl Default for ShowWidget {
@@ -43,6 +44,7 @@ impl Default for ShowWidget {
         let unsub: gtk::Button = builder.get_object("unsub_button").unwrap();
         let link: gtk::Button = builder.get_object("link_button").unwrap();
         let settings: gtk::MenuButton = builder.get_object("settings_button").unwrap();
+        let progress_bar = builder.get_object("progress_bar").unwrap();
 
         ShowWidget {
             container,
@@ -53,6 +55,7 @@ impl Default for ShowWidget {
             link,
             settings,
             episodes,
+            progress_bar,
         }
     }
 }
@@ -147,6 +150,7 @@ impl ShowWidget {
         }
 
         let list = self.episodes.clone();
+        let bar = self.progress_bar.clone();
         gtk::idle_add(move || {
             let episodes = match receiver.try_recv() {
                 Ok(e) => e,
@@ -154,7 +158,16 @@ impl ShowWidget {
                 Err(Disconnected) => return glib::Continue(false),
             };
 
-            let constructor = clone!(sender => move |ep| {
+            let mut done = 0;
+            let constructor = clone!(sender, bar => move |ep| {
+                done += 1;
+                if done >= count {
+                    bar.hide()
+                }
+
+                let fraction = done as f64 / count as f64;
+                bar.set_fraction(fraction);
+
                 EpisodeWidget::new(ep, sender.clone()).container
             });
 
@@ -164,6 +177,7 @@ impl ShowWidget {
                     .ok();
             });
 
+            bar.show();
             lazy_load(episodes, list.clone(), constructor, callback);
 
             glib::Continue(false)