demo-app: Delete confusing ResetCollection command

Author: uklotzde

demo-app/src/library/mod.rs

@@ -129,12 +129,6 @@ impl Library {
         self.update_music_dir(None);
     }
 
-    pub fn reset_collection(&self) {
-        self.state.collection.reset();
-        // Enforce restoring the collection from the selected music directory.
-        self.state.settings.set_modified();
-    }
-
     pub fn spawn_rescan_collection_task(&mut self, rt: &tokio::runtime::Handle) -> bool {
         if let Some(rescan_collection_task) = self.pending_rescan_collection_task.as_ref() {
             if rescan_collection_task.is_finished() {

demo-app/src/main.rs

@@ -200,12 +200,6 @@ fn run_app(rt: tokio::runtime::Handle, library: Library, config_dir: PathBuf) {
                     |cx: &mut Context| Label::new(cx, "Rescan collection"),
                 )
                 .disabled(AppModel::collection_state.map(disable_rescan_collection));
-                Button::new(
-                    cx,
-                    |ex| ex.emit(AppEvent::Command(AppCommand::ResetCollection)),
-                    |cx| Label::new(cx, "Reset collection"),
-                )
-                .disabled(AppModel::collection_state.map(disable_rescan_collection));
             });
         });
 
@@ -235,11 +229,6 @@ const fn disable_select_music_dir(state: &CollectionState) -> bool {
     state.is_pending()
 }
 
-#[must_use]
-fn disable_reset_collection(state: &CollectionState) -> bool {
-    state.is_pending() || *state == CollectionState::Void
-}
-
 #[must_use]
 const fn disable_rescan_collection(state: &CollectionState) -> bool {
     !state.is_ready()
@@ -293,7 +282,6 @@ enum AppCommand {
     SelectMusicDirectory,
     UpdateMusicDirectory(DirPath<'static>),
     ResetMusicDirectory,
-    ResetCollection,
     RescanCollection,
     SearchTracks(String),
 }
@@ -393,9 +381,6 @@ impl Model for AppModel {
                 AppCommand::ResetMusicDirectory => {
                     self.app.library.reset_music_dir();
                 }
-                AppCommand::ResetCollection => {
-                    self.app.library.reset_collection();
-                }
                 AppCommand::RescanCollection => {
                     self.app.library.spawn_rescan_collection_task(&self.app.rt);
                 }