Make recording screen functional again

src/screens/recording.rs

@@ -1,7 +1,8 @@
 use crate::backend::Backend;
-use crate::database::Recording;
+use crate::database::{Recording, TrackSet};
 use crate::editors::RecordingEditor;
 use crate::navigator::{NavigatorWindow, NavigationHandle, Screen};
+use crate::player::PlaylistItem;
 use crate::widgets;
 use crate::widgets::{List, Section, Widget};
 use gettextrs::gettext;
@@ -11,13 +12,24 @@ use libadwaita::prelude::*;
 use std::cell::RefCell;
 use std::rc::Rc;
 
+/// Representation of one entry within the track list.
+enum ListItem {
+    /// A track row. This hold an index to the track set and an index to the
+    /// track within the track set.
+    Track(usize, usize),
+
+    /// A separator intended for use between track sets.
+    Separator,
+}
+
 /// A screen for showing a recording.
 pub struct RecordingScreen {
     handle: NavigationHandle<()>,
     recording: Recording,
     widget: widgets::Screen,
-    track_list: Rc<List>,
-    recordings: RefCell<Vec<Recording>>,
+    list: Rc<List>,
+    track_sets: RefCell<Vec<TrackSet>>,
+    items: RefCell<Vec<ListItem>>,
 }
 
 impl Screen<Recording, ()> for RecordingScreen {
@@ -28,21 +40,38 @@ impl Screen<Recording, ()> for RecordingScreen {
         widget.set_title(&recording.work.get_title());
         widget.set_subtitle(&recording.get_performers());
 
-        let track_list = List::new();
+        let list = List::new();
+        let section = Section::new(&gettext("Tracks"), &list.widget);
+        widget.add_content(&section.widget);
 
         let this = Rc::new(Self {
             handle,
             recording,
             widget,
-            track_list,
-            recordings: RefCell::new(Vec::new()),
+            list,
+            track_sets: RefCell::new(Vec::new()),
+            items: RefCell::new(Vec::new()),
         });
 
+        section.add_action("media-playback-start-symbolic", clone!(@weak this => move || {
+            if let Some(player) = this.handle.backend.get_player() {
+                if let Some(track_set) = this.track_sets.borrow().get(0).cloned() {
+                    let indices = (0..track_set.tracks.len()).collect();
+
+                    let playlist_item = PlaylistItem {
+                        track_set,
+                        indices,
+                    };
+
+                    player.add_item(playlist_item).unwrap();
+                }
+            }
+        }));
+
         this.widget.set_back_cb(clone!(@weak this => move || {
             this.handle.pop(None);
         }));
 
-
         this.widget.add_action(&gettext("Edit recording"), clone!(@weak this => move || {
             spawn!(@clone this, async move {
                 let window = NavigatorWindow::new(this.handle.backend.clone());
@@ -57,25 +86,46 @@ impl Screen<Recording, ()> for RecordingScreen {
             });
         }));
 
-        this.widget.set_search_cb(clone!(@weak this => move || {
-            this.track_list.invalidate_filter();
-        }));
+        this.list.set_make_widget_cb(clone!(@weak this => move |index| {
+            match this.items.borrow()[index] {
+                ListItem::Track(track_set_index, track_index) => {
+                    let track_set = &this.track_sets.borrow()[track_set_index];
+                    let track = &track_set.tracks[track_index];
 
-        // TODO: Implement.
-        // this.track_list.set_make_widget_cb(clone!(@strong this => move |index| {
-        // }));
+                    let mut title_parts = Vec::<String>::new();
+                    for part in &track.work_parts {
+                        title_parts.push(this.recording.work.parts[*part].title.clone());
+                    }
 
-        this.track_list.set_filter_cb(clone!(@weak this => move |index| {
-            // TODO: Implement.
-            // search.is_empty() || text.to_lowercase().contains(&search)
-            true
+                    let title = if title_parts.is_empty() {
+                        gettext("Unknown")
+                    } else {
+                        title_parts.join(", ")
+                    };
+
+                    let row = libadwaita::ActionRow::new();
+                    row.set_title(Some(&title));
+
+                    row.upcast()
+                }
+                ListItem::Separator => {
+                    let separator = gtk::Separator::new(gtk::Orientation::Horizontal);
+                    separator.upcast()
+                }
+            }
         }));
 
         // Load the content asynchronously.
 
         spawn!(@clone this, async move {
-            // TODO: Implement.
+            let track_sets = this.handle
+                .backend
+                .db()
+                .get_track_sets(&this.recording.id)
+                .await
+                .unwrap();
 
+            this.show_track_sets(track_sets);
             this.widget.ready();
         });
 
@@ -83,6 +133,31 @@ impl Screen<Recording, ()> for RecordingScreen {
     }
 }
 
+impl RecordingScreen {
+    /// Update the track sets variable as well as the user interface.
+    fn show_track_sets(&self, track_sets: Vec<TrackSet>) {
+        let mut first = true;
+        let mut items = Vec::new();
+
+        for (track_set_index, track_set) in track_sets.iter().enumerate() {
+            if !first {
+                items.push(ListItem::Separator);
+            } else {
+                first = false;
+            }
+
+            for (track_index, _) in track_set.tracks.iter().enumerate() {
+                items.push(ListItem::Track(track_set_index, track_index));
+            }
+        }
+
+        let length = items.len();
+        self.items.replace(items);
+        self.track_sets.replace(track_sets);
+        self.list.update(length);
+    }
+}
+
 impl Widget for RecordingScreen {
     fn get_widget(&self) -> gtk::Widget {
         self.widget.widget.clone().upcast()

src/widgets/section.rs

@@ -50,6 +50,7 @@ impl Section {
         let button = gtk::ButtonBuilder::new()
             .has_frame(false)
             .valign(gtk::Align::Center)
+            .margin_top(12)
             .icon_name(icon_name)
             .build();