admin1
125 lines
3.3 KiB
Dart
125 lines
3.3 KiB
Dart
import 'package:flutter/foundation.dart';
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import '../../../core/contracts/playback.dart';
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import '../../../providers/subtitle_settings_provider.dart';
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enum InitialSubtitleSelectionType { unchanged, disabled, track }
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class InitialSubtitleSelection {
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final InitialSubtitleSelectionType type;
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final EmbySubtitleTrack? track;
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const InitialSubtitleSelection._({required this.type, this.track});
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static const unchanged = InitialSubtitleSelection._(
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type: InitialSubtitleSelectionType.unchanged,
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);
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static const disabled = InitialSubtitleSelection._(
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type: InitialSubtitleSelectionType.disabled,
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);
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const InitialSubtitleSelection.track(EmbySubtitleTrack selectedTrack)
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: this._(type: InitialSubtitleSelectionType.track, track: selectedTrack);
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}
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InitialSubtitleSelection resolveInitialSubtitleSelection({
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required List<EmbySubtitleTrack> subtitles,
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required int? preferredSubtitleStreamIndex,
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required int? defaultSubtitleStreamIndex,
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required RememberedSubtitleTrack? rememberedSubtitle,
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}) {
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if (preferredSubtitleStreamIndex != null &&
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preferredSubtitleStreamIndex >= 0) {
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return _selectionForStreamIndex(subtitles, preferredSubtitleStreamIndex);
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}
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if (rememberedSubtitle != null) {
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if (rememberedSubtitle.isNone) {
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return InitialSubtitleSelection.disabled;
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}
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final rememberedStreamIndex = matchRememberedSubtitle(
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rememberedSubtitle,
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subtitles,
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);
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if (rememberedStreamIndex != null) {
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return _selectionForStreamIndex(subtitles, rememberedStreamIndex);
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}
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}
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if (preferredSubtitleStreamIndex != null &&
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preferredSubtitleStreamIndex < 0) {
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return InitialSubtitleSelection.disabled;
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}
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if (defaultSubtitleStreamIndex != null && defaultSubtitleStreamIndex >= 0) {
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return _selectionForStreamIndex(subtitles, defaultSubtitleStreamIndex);
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}
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if (defaultSubtitleStreamIndex == -1) {
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return InitialSubtitleSelection.disabled;
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}
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return InitialSubtitleSelection.unchanged;
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}
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InitialSubtitleSelection _selectionForStreamIndex(
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List<EmbySubtitleTrack> subtitles,
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int streamIndex,
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) {
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final selectedTrack = subtitles
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.where((subtitle) => subtitle.index == streamIndex)
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.firstOrNull;
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return selectedTrack == null
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? InitialSubtitleSelection.unchanged
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: InitialSubtitleSelection.track(selectedTrack);
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}
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@visibleForTesting
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int? matchRememberedSubtitle(
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RememberedSubtitleTrack remembered,
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List<EmbySubtitleTrack> subtitles,
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) {
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if (subtitles.isEmpty) return null;
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final wantedLanguage = remembered.language?.toLowerCase();
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final wantedTitle = remembered.title?.toLowerCase();
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if (wantedLanguage != null && wantedTitle != null) {
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for (final subtitle in subtitles) {
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if (subtitle.language?.toLowerCase() == wantedLanguage &&
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subtitle.title?.toLowerCase() == wantedTitle) {
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return subtitle.index;
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}
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}
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}
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if (wantedTitle != null) {
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for (final subtitle in subtitles) {
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if (subtitle.title?.toLowerCase() == wantedTitle) {
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return subtitle.index;
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}
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}
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}
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if (wantedLanguage != null) {
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for (final subtitle in subtitles) {
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if (subtitle.language?.toLowerCase() == wantedLanguage) {
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return subtitle.index;
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}
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}
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}
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for (final subtitle in subtitles) {
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if (subtitle.index == remembered.streamIndex) {
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return subtitle.index;
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}
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}
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return null;
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}
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