Streamline code
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@ -6,7 +6,7 @@ use musichoard::collection::{album::Album, artist::Artist, track::Track};
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use crate::tui::{
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app::{
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machine::{App, AppInner, AppMachine},
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selection::ListSelection,
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selection::{ListSelection, SelectionState},
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AppPublic, AppState, Category, IAppInteractSearch,
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},
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lib::IMusicHoard,
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@ -109,9 +109,14 @@ impl<MH: IMusicHoard> IAppInteractSearch for AppMachine<MH, AppSearch> {
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trait IAppInteractSearchPrivate {
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fn incremental_search(&mut self, next: bool);
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fn search_category<T, P>(list: &[T], index: usize, next: bool, pred: P) -> Option<usize>
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fn search_category<T, P>(
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state: SelectionState<'_, T>,
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search_name: &str,
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next: bool,
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predicate: P,
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) -> Option<usize>
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where
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P: FnMut(&T) -> bool;
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P: FnMut(bool, bool, &str, &T) -> bool;
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fn predicate_artists(case_sens: bool, char_sens: bool, search: &str, probe: &Artist) -> bool;
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fn predicate_albums(case_sens: bool, char_sens: bool, search: &str, probe: &Album) -> bool;
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fn predicate_tracks(case_sens: bool, char_sens: bool, search: &str, probe: &Track) -> bool;
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@ -125,73 +130,49 @@ trait IAppInteractSearchPrivate {
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impl<MH: IMusicHoard> IAppInteractSearchPrivate for AppMachine<MH, AppSearch> {
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fn incremental_search(&mut self, next: bool) {
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let collection = self.inner.music_hoard.get_collection();
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let search_name = &self.state.string;
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let search = &self.state.string;
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let sel = &mut self.inner.selection;
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if let Some(index) = sel.selected() {
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let case_sensitive = Self::is_case_sensitive(search_name);
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let char_sensitive = Self::is_char_sensitive(search_name);
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let search = Self::normalize_search(search_name, !case_sensitive, !char_sensitive);
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let result = match sel.active {
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Category::Artist => {
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let artists = collection;
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Self::search_category(artists, index, next, |probe| {
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Self::predicate_artists(case_sensitive, char_sensitive, &search, probe)
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})
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}
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Category::Album => {
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let artists = collection;
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let albums = sel
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.artist
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.state
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.list
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.selected()
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.map(|i| &artists[i].albums)
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.unwrap();
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Self::search_category(albums, index, next, |probe| {
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Self::predicate_albums(case_sensitive, char_sensitive, &search, probe)
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})
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}
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Category::Track => {
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let artists = collection;
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let albums = sel
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.artist
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.state
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.list
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.selected()
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.map(|i| &artists[i].albums)
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.unwrap();
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let tracks = sel
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.artist
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.album
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.state
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.list
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.selected()
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.map(|i| &albums[i].tracks)
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.unwrap();
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Self::search_category(tracks, index, next, |probe| {
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Self::predicate_tracks(case_sensitive, char_sensitive, &search, probe)
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})
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}
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Category::Artist => sel.state_artist(collection).and_then(|state| {
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Self::search_category(state, search, next, Self::predicate_artists)
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}),
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Category::Album => sel.state_album(collection).and_then(|state| {
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Self::search_category(state, search, next, Self::predicate_albums)
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}),
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Category::Track => sel.state_track(collection).and_then(|state| {
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Self::search_category(state, search, next, Self::predicate_tracks)
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}),
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};
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if result.is_some() {
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sel.select(collection, result);
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}
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}
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}
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fn search_category<T, P>(list: &[T], mut index: usize, next: bool, pred: P) -> Option<usize>
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fn search_category<T, P>(
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state: SelectionState<'_, T>,
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search_name: &str,
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next: bool,
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mut predicate: P,
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) -> Option<usize>
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where
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P: FnMut(&T) -> bool,
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P: FnMut(bool, bool, &str, &T) -> bool,
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{
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if next && ((index + 1) < list.len()) {
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let case_sens = Self::is_case_sensitive(search_name);
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let char_sens = Self::is_char_sensitive(search_name);
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let search = Self::normalize_search(search_name, !case_sens, !char_sens);
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let mut index = state.index;
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if next && ((index + 1) < state.list.len()) {
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index += 1;
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}
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let slice = &list[index..];
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let result = slice.iter().position(pred);
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result.map(|slice_index| index + slice_index)
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let slice = &state.list[index..];
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slice
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.iter()
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.position(|probe| predicate(case_sens, char_sens, &search, probe))
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.map(|slice_index| index + slice_index)
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}
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fn predicate_artists(case_sens: bool, char_sens: bool, search: &str, probe: &Artist) -> bool {
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@ -62,6 +62,11 @@ impl Delta {
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}
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}
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pub struct SelectionState<'a, T> {
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pub list: &'a [T],
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pub index: usize,
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}
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impl Selection {
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pub fn new(artists: &[Artist]) -> Self {
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Selection {
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@ -136,6 +141,18 @@ impl Selection {
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self.artist.selected_track()
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}
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pub fn state_artist<'a>(&self, coll: &'a Collection) -> Option<SelectionState<'a, Artist>> {
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self.artist.selection_state(coll)
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}
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pub fn state_album<'a>(&self, coll: &'a Collection) -> Option<SelectionState<'a, Album>> {
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self.artist.state_album(coll)
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}
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pub fn state_track<'a>(&self, coll: &'a Collection) -> Option<SelectionState<'a, Track>> {
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self.artist.state_track(coll)
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}
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pub fn reset(&mut self, collection: &Collection) {
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match self.active {
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Category::Artist => self.reset_artist(collection),
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@ -278,6 +295,21 @@ impl ArtistSelection {
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}
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}
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fn selection_state<'a>(&self, list: &'a [Artist]) -> Option<SelectionState<'a, Artist>> {
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let selected = self.state.list.selected();
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selected.map(|index| SelectionState { list, index })
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}
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fn state_album<'a>(&self, artists: &'a [Artist]) -> Option<SelectionState<'a, Album>> {
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let selected = self.state.list.selected();
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selected.and_then(|index| self.album.selection_state(&artists[index].albums))
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}
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fn state_track<'a>(&self, artists: &'a [Artist]) -> Option<SelectionState<'a, Track>> {
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let selected = self.state.list.selected();
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selected.and_then(|index| self.album.state_tracks(&artists[index].albums))
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}
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fn reset(&mut self, artists: &[Artist]) {
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if self.state.list.selected() != Some(0) {
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self.reinitialise(artists, None);
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@ -416,6 +448,16 @@ impl AlbumSelection {
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}
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}
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fn selection_state<'a>(&self, list: &'a [Album]) -> Option<SelectionState<'a, Album>> {
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let selected = self.state.list.selected();
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selected.map(|index| SelectionState { list, index })
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}
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fn state_tracks<'a>(&self, albums: &'a [Album]) -> Option<SelectionState<'a, Track>> {
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let selected = self.state.list.selected();
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selected.and_then(|index| self.track.selection_state(&albums[index].tracks))
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}
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fn reset(&mut self, albums: &[Album]) {
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if self.state.list.selected() != Some(0) {
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self.reinitialise(albums, None);
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@ -518,6 +560,11 @@ impl TrackSelection {
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self.state.list.select(Some(to));
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}
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fn selection_state<'a>(&self, list: &'a [Track]) -> Option<SelectionState<'a, Track>> {
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let selected = self.state.list.selected();
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selected.map(|index| SelectionState { list, index })
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}
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fn reset(&mut self, tracks: &[Track]) {
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if self.state.list.selected() != Some(0) {
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self.reinitialise(tracks, None);
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