mirror of
https://gitlab.com/nkming2/nc-photos.git
synced 2025-01-23 17:26:18 +01:00
779 lines
23 KiB
Dart
779 lines
23 KiB
Dart
part of '../home_photos2.dart';
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@npLog
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class _Bloc extends Bloc<_Event, _State> with BlocLogger {
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_Bloc(
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this._c, {
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required this.account,
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required this.filesController,
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required this.prefController,
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required this.accountPrefController,
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required this.collectionsController,
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required this.syncController,
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required this.personsController,
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required this.metadataController,
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}) : super(_State.init(
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zoom: prefController.homePhotosZoomLevelValue,
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isEnableMemoryCollection:
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accountPrefController.isEnableMemoryAlbumValue,
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)) {
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on<_LoadItems>(_onLoad);
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on<_RequestRefresh>(_onRequestRefresh);
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on<_TransformItems>(_onTransformItems);
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on<_OnItemTransformed>(_onOnItemTransformed);
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on<_SetSelectedItems>(_onSetSelectedItems);
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on<_AddSelectedItemsToCollection>(_onAddSelectedItemsToCollection);
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on<_ArchiveSelectedItems>(_onArchiveSelectedItems);
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on<_DeleteSelectedItems>(_onDeleteSelectedItems);
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on<_DownloadSelectedItems>(_onDownloadSelectedItems);
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on<_AddVisibleDate>(_onAddVisibleDate);
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on<_RemoveVisibleDate>(_onRemoveVisibleDate);
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on<_SetContentListMaxExtent>(_onSetContentListMaxExtent);
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on<_SetSyncProgress>(_onSetSyncProgress);
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on<_StartScaling>(_onStartScaling);
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on<_EndScaling>(_onEndScaling);
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on<_SetScale>(_onSetScale);
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on<_StartScrolling>(_onStartScrolling);
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on<_EndScrolling>(_onEndScrolling);
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on<_SetLayoutConstraint>(_onSetLayoutConstraint);
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on<_TransformMinimap>(_onTransformMinimap);
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on<_UpdateScrollDate>(_onUpdateScrollDate);
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on<_SetEnableMemoryCollection>(_onSetEnableMemoryCollection);
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on<_SetMemoriesRange>(_onSetMemoriesRange);
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on<_UpdateDateTimeGroup>(_onUpdateDateTimeGroup);
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on<_SetError>(_onSetError);
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_subscriptions
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.add(accountPrefController.isEnableMemoryAlbumChange.listen((event) {
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add(_SetEnableMemoryCollection(event));
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}));
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_subscriptions.add(prefController.memoriesRangeChange.listen((event) {
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add(_SetMemoriesRange(event));
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}));
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_subscriptions.add(stream
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.distinct((previous, next) =>
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previous.filesSummary == next.filesSummary &&
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previous.viewHeight == next.viewHeight &&
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previous.itemPerRow == next.itemPerRow &&
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previous.itemSize == next.itemSize)
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.listen((event) {
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add(const _TransformMinimap());
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}));
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_subscriptions.add(stream
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.distinct((previous, next) =>
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previous.filesSummary == next.filesSummary &&
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previous.files == next.files)
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.listen((event) {
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add(_TransformItems(event.files, event.filesSummary));
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}));
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_subscriptions.add(stream
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.distinctBy(
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(e) => e.visibleDates.map((d) => d.date).sortedBySelf().lastOrNull)
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.listen((event) {
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_onVisibleDatesUpdated();
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}));
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_subscriptions.add(stream
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.distinct(
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(previous, next) =>
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previous.visibleDates == next.visibleDates &&
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previous.itemPerRow == next.itemPerRow,
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)
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.listen((event) {
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add(const _UpdateScrollDate());
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}));
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}
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@override
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Future<void> close() {
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for (final s in _subscriptions) {
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s.cancel();
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}
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_filesQueryTimer?.cancel();
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return super.close();
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}
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@override
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String get tag => _log.fullName;
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@override
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bool Function(dynamic, dynamic)? get shouldLog => (currentState, nextState) {
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currentState = currentState as _State;
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nextState = nextState as _State;
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return currentState.scale == nextState.scale &&
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currentState.visibleDates == nextState.visibleDates &&
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currentState.syncProgress == nextState.syncProgress &&
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currentState.scrollDate == nextState.scrollDate;
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};
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@override
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void onError(Object error, StackTrace stackTrace) {
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// we need this to prevent onError being triggered recursively
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if (!isClosed && !_isHandlingError) {
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_isHandlingError = true;
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try {
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add(_SetError(error, stackTrace));
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} catch (_) {}
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_isHandlingError = false;
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}
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super.onError(error, stackTrace);
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}
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Future<void> _onLoad(_LoadItems ev, Emitter<_State> emit) async {
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_log.info(ev);
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await Future.wait([
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emit.forEach<FilesSummaryStreamEvent>(
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filesController.summaryStream,
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onData: (data) => state.copyWith(
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filesSummary: data.summary,
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),
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onError: (e, stackTrace) {
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_log.severe("[_onLoad] Uncaught exception", e, stackTrace);
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return state.copyWith(
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error: ExceptionEvent(e, stackTrace),
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);
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},
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),
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emit.forEach<TimelineStreamEvent>(
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filesController.timelineStream,
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onData: (data) {
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if (!data.isDummy && _isInitialLoad) {
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_isInitialLoad = false;
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_syncRemote();
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}
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return state.copyWith(
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files: data.data.values.toList(),
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);
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},
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onError: (e, stackTrace) {
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_log.severe("[_onLoad] Uncaught exception", e, stackTrace);
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return state.copyWith(
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error: ExceptionEvent(e, stackTrace),
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);
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},
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),
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]);
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}
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void _onRequestRefresh(_RequestRefresh ev, Emitter<_State> emit) {
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_log.info(ev);
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emit(state.copyWith(syncProgress: const Progress(0)));
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_syncRemote();
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metadataController.scheduleNext();
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}
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void _onTransformItems(_TransformItems ev, Emitter<_State> emit) {
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_log.info(ev);
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_transformItems(ev.files, ev.summary);
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emit(state.copyWith(isLoading: true));
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}
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void _onOnItemTransformed(_OnItemTransformed ev, Emitter<_State> emit) {
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_log.info(ev);
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emit(state.copyWith(
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transformedItems: ev.items,
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memoryCollections: ev.memoryCollections,
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isLoading: _itemTransformerQueue.isProcessing,
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queriedDates: ev.dates,
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));
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_requestMoreFiles(ev.dates);
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}
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void _onSetSelectedItems(_SetSelectedItems ev, Emitter<_State> emit) {
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_log.info(ev);
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emit(state.copyWith(selectedItems: ev.items));
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}
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void _onAddSelectedItemsToCollection(
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_AddSelectedItemsToCollection ev, Emitter<_State> emit) {
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_log.info(ev);
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final selected = state.selectedItems;
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_clearSelection(emit);
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final selectedFiles =
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selected.whereType<_FileItem>().map((e) => e.file).toList();
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if (selectedFiles.isNotEmpty) {
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final targetController = collectionsController.stream.value
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.itemsControllerByCollection(ev.collection);
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targetController.addFiles(selectedFiles).onError((e, stackTrace) {
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if (e != null) {
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add(_SetError(e, stackTrace));
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}
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});
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}
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}
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void _onArchiveSelectedItems(_ArchiveSelectedItems ev, Emitter<_State> emit) {
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_log.info(ev);
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final selected = state.selectedItems;
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_clearSelection(emit);
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final selectedFiles =
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selected.whereType<_FileItem>().map((e) => e.file).toList();
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if (selectedFiles.isNotEmpty) {
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filesController.updateProperty(
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selectedFiles,
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isArchived: const OrNull(true),
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errorBuilder: (fileIds) => _ArchiveFailedError(fileIds.length),
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);
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}
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}
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void _onDeleteSelectedItems(_DeleteSelectedItems ev, Emitter<_State> emit) {
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_log.info(ev);
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final selected = state.selectedItems;
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_clearSelection(emit);
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final selectedFiles =
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selected.whereType<_FileItem>().map((e) => e.file).toList();
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if (selectedFiles.isNotEmpty) {
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filesController.remove(
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selectedFiles,
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errorBuilder: (fileIds) => _RemoveFailedError(fileIds.length),
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);
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}
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}
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void _onDownloadSelectedItems(
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_DownloadSelectedItems ev, Emitter<_State> emit) {
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_log.info(ev);
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final selected = state.selectedItems;
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_clearSelection(emit);
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final selectedFiles =
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selected.whereType<_FileItem>().map((e) => e.file).toList();
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if (selectedFiles.isNotEmpty) {
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unawaited(DownloadHandler(_c).downloadFiles(account, selectedFiles));
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}
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}
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void _onAddVisibleDate(_AddVisibleDate ev, Emitter<_State> emit) {
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// _log.info(ev);
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if (state.visibleDates.contains(ev.date)) {
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return;
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}
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emit(state.copyWith(visibleDates: state.visibleDates.added(ev.date)));
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}
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void _onRemoveVisibleDate(_RemoveVisibleDate ev, Emitter<_State> emit) {
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// _log.info(ev);
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if (!state.visibleDates.contains(ev.date)) {
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return;
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}
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emit(state.copyWith(visibleDates: state.visibleDates.removed(ev.date)));
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}
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void _onSetContentListMaxExtent(
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_SetContentListMaxExtent ev, Emitter<_State> emit) {
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_log.info(ev);
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emit(state.copyWith(contentListMaxExtent: ev.value));
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}
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void _onSetSyncProgress(_SetSyncProgress ev, Emitter<_State> emit) {
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_log.info(ev);
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emit(state.copyWith(syncProgress: ev.progress));
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}
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void _onStartScaling(_StartScaling ev, Emitter<_State> emit) {
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_log.info(ev);
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}
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Future<void> _onEndScaling(_EndScaling ev, Emitter<_State> emit) async {
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_log.info(ev);
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if (state.scale == null) {
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return;
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}
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final int newZoom;
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final currZoom = state.zoom;
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if (state.scale! >= 1.25) {
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// scale up
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newZoom = (currZoom + 1).clamp(-1, 2);
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} else if (state.scale! <= 0.75) {
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newZoom = (currZoom - 1).clamp(-1, 2);
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} else {
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newZoom = currZoom;
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}
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emit(state.copyWith(
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zoom: newZoom,
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scale: null,
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));
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await prefController.setHomePhotosZoomLevel(newZoom);
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if ((currZoom >= 0) != (newZoom >= 0)) {
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add(const _UpdateDateTimeGroup());
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}
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}
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void _onStartScrolling(_StartScrolling ev, Emitter<_State> emit) {
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_log.info(ev);
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emit(state.copyWith(isScrolling: true));
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}
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void _onEndScrolling(_EndScrolling ev, Emitter<_State> emit) {
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_log.info(ev);
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emit(state.copyWith(isScrolling: false));
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}
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void _onSetScale(_SetScale ev, Emitter<_State> emit) {
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// _log.info(ev);
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emit(state.copyWith(scale: ev.scale));
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}
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void _onSetLayoutConstraint(_SetLayoutConstraint ev, Emitter<_State> emit) {
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_log.info(ev);
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if (state.viewHeight == ev.viewHeight && state.viewWidth == ev.viewWidth) {
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// nothing changed
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return;
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}
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final measurement = _measureItem(
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ev.viewWidth, photo_list_util.getThumbSize(state.zoom).toDouble());
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emit(state.copyWith(
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viewWidth: ev.viewWidth,
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viewHeight: ev.viewHeight,
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itemPerRow: measurement.itemPerRow,
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itemSize: measurement.itemSize,
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));
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}
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Future<void> _onTransformMinimap(
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_TransformMinimap ev, Emitter<_State> emit) async {
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_log.info(ev);
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if (state.itemSize == null ||
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state.itemPerRow == null ||
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state.viewHeight == null) {
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_log.warning("[_onTransformMinimap] Layout measurements not ready");
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return;
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}
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final maker = prefController.homePhotosZoomLevelValue >= 0
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? _makeMinimapItems
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: _makeMonthGroupMinimapItems;
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final minimapItems = maker(
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filesSummary: state.filesSummary,
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itemSize: state.itemSize!,
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itemPerRow: state.itemPerRow!,
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viewHeight: state.viewHeight!,
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);
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final totalHeight = minimapItems.map((e) => e.logicalHeight).sum;
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final ratio = state.viewHeight! / totalHeight;
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_log.info(
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"[_onTransformMinimap] view height: ${state.viewHeight!}, logical height: $totalHeight");
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emit(state.copyWith(
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minimapItems: minimapItems,
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minimapYRatio: ratio,
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));
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}
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void _onUpdateScrollDate(_UpdateScrollDate ev, Emitter<_State> emit) {
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// _log.info(ev);
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if (state.itemPerRow == null || state.visibleDates.isEmpty) {
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if (state.scrollDate != null) {
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emit(state.copyWith(scrollDate: null));
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}
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return;
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}
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final dateRows = state.visibleDates
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.map((e) => e.date)
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.sortedBySelf()
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.reversed
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.groupBy(key: (e) {
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if (prefController.homePhotosZoomLevelValue >= 0) {
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return e;
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} else {
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// month
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return Date(e.year, e.month);
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}
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}).map((key, value) =>
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MapEntry(key, (value.length / state.itemPerRow!).ceil()));
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final totalRows = dateRows.values.sum;
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final midRow = totalRows / 2;
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var x = 0;
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for (final e in dateRows.entries) {
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x += e.value;
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if (x >= midRow) {
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if (state.scrollDate != e.key) {
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emit(state.copyWith(scrollDate: e.key));
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}
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return;
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}
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}
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}
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void _onSetEnableMemoryCollection(
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_SetEnableMemoryCollection ev, Emitter<_State> emit) {
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_log.info(ev);
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emit(state.copyWith(isEnableMemoryCollection: ev.value));
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}
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void _onSetMemoriesRange(_SetMemoriesRange ev, Emitter<_State> emit) {
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_log.info(ev);
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_transformItems(state.files, state.filesSummary);
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}
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void _onUpdateDateTimeGroup(_UpdateDateTimeGroup ev, Emitter<_State> emit) {
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_log.info(ev);
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if (state.viewWidth != null) {
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final measurement = _measureItem(state.viewWidth!,
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photo_list_util.getThumbSize(state.zoom).toDouble());
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emit(state.copyWith(
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itemPerRow: measurement.itemPerRow,
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itemSize: measurement.itemSize,
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));
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}
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_transformItems(state.files, state.filesSummary);
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add(const _TransformMinimap());
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}
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void _onSetError(_SetError ev, Emitter<_State> emit) {
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_log.info(ev);
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emit(state.copyWith(error: ExceptionEvent(ev.error, ev.stackTrace)));
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}
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Future _transformItems(
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List<FileDescriptor> files, DbFilesSummary? summary) async {
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_log.info("[_transformItems] Queue ${files.length} items");
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_itemTransformerQueue.addJob(
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_ItemTransformerArgument(
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account: account,
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files: files,
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summary: summary,
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itemPerRow: state.itemPerRow,
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itemSize: state.itemSize,
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isGroupByDay: prefController.homePhotosZoomLevelValue >= 0,
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memoriesDayRange: prefController.memoriesRangeValue,
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locale: language_util.getSelectedLocale() ??
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PlatformDispatcher.instance.locale,
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),
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_buildItem,
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(result) {
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if (!isClosed) {
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add(_OnItemTransformed(
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result.items, result.memoryCollections, result.dates));
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}
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},
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);
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}
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void _syncRemote() {
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final stopwatch = Stopwatch()..start();
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filesController.syncRemote(
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onProgressUpdate: (progress) {
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if (!isClosed) {
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add(_SetSyncProgress(progress));
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}
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},
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).whenComplete(() {
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if (!isClosed) {
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add(const _SetSyncProgress(null));
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}
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syncController.requestSync(
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account: account,
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filesController: filesController,
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personsController: personsController,
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personProvider: accountPrefController.personProviderValue,
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);
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metadataController.kickstart();
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_log.info(
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"[_syncRemote] Elapsed time: ${stopwatch.elapsedMilliseconds}ms");
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});
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}
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void _clearSelection(Emitter<_State> emit) {
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emit(state.copyWith(selectedItems: const {}));
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}
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void _onVisibleDatesUpdated() {
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_filesQueryTimer?.cancel();
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_filesQueryTimer = Timer(const Duration(milliseconds: 500), () {
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if (!_isQueryingFiles) {
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_requestMoreFiles();
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}
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});
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}
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void _requestMoreFiles([Set<Date>? queriedDates]) {
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queriedDates ??= state.queriedDates;
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final missingDates = state.visibleDates
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.map((e) => e.date)
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.whereNot((d) => queriedDates!.contains(d))
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.toSet();
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if (missingDates.isNotEmpty) {
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_requestFilesFrom(missingDates.sortedBySelf().last);
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} else {
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_isQueryingFiles = false;
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}
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}
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/// Query a set number of files taken on or before [at]
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void _requestFilesFrom(Date at) {
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const targetFileCount = 50;
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_log.info("[_requestFilesFrom] $at");
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_isQueryingFiles = true;
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final summary = state.filesSummary;
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var dates = summary.items.keys.toList();
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final i = dates.indexWhere((e) => e.isBeforeOrAt(at));
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if (i == -1) {
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_log.info("[_requestFilesFrom] No more files before $at");
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return;
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}
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dates = dates.sublist(i);
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final begin = dates.first;
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_log.info("[_requestFilesFrom] First date of interest: $begin");
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var count = 0;
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Date? end;
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for (final d in dates) {
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|
count += summary.items[d]!.count;
|
|
end = d;
|
|
if (count >= targetFileCount) {
|
|
break;
|
|
}
|
|
}
|
|
_log.info("[_requestFilesFrom] Query $count files until $end");
|
|
filesController
|
|
.queryTimelineByDateRange(DateRange(from: end, to: at.add(day: 1)))
|
|
.onError((e, stackTrace) {
|
|
_isQueryingFiles = false;
|
|
});
|
|
}
|
|
|
|
List<_MinimapItem> _makeMonthGroupMinimapItems({
|
|
required DbFilesSummary filesSummary,
|
|
required double itemSize,
|
|
required int itemPerRow,
|
|
required double viewHeight,
|
|
}) {
|
|
_log.info(
|
|
"[_makeMonthGroupMinimapItems] itemSize: $itemSize, itemPerRow: $itemPerRow, viewHeight: $viewHeight");
|
|
double position = 0;
|
|
Date? currentMonth;
|
|
double currentMonthY = 0;
|
|
var currentMonthCount = 0;
|
|
final results = <_MinimapItem>[];
|
|
for (final e in filesSummary.items.entries) {
|
|
final thisMonth = Date(e.key.year, e.key.month);
|
|
if (currentMonth != thisMonth) {
|
|
if (currentMonth != null) {
|
|
final h = _getLogicalHeightByItemCount(
|
|
itemCount: currentMonthCount,
|
|
rowHeight: itemSize,
|
|
itemPerRow: itemPerRow,
|
|
);
|
|
results.add(_MinimapItem(
|
|
date: currentMonth,
|
|
logicalY: currentMonthY,
|
|
logicalHeight: h,
|
|
));
|
|
position += h;
|
|
}
|
|
currentMonth = thisMonth;
|
|
currentMonthY = position;
|
|
currentMonthCount = e.value.count;
|
|
} else {
|
|
currentMonthCount += e.value.count;
|
|
}
|
|
}
|
|
// add the last month
|
|
if (currentMonth != null) {
|
|
final h = _getLogicalHeightByItemCount(
|
|
itemCount: currentMonthCount,
|
|
rowHeight: itemSize,
|
|
itemPerRow: itemPerRow,
|
|
);
|
|
results.add(_MinimapItem(
|
|
date: currentMonth,
|
|
logicalY: currentMonthY,
|
|
// we need to take screen(view) height into account
|
|
logicalHeight: h,
|
|
));
|
|
}
|
|
return results;
|
|
}
|
|
|
|
List<_MinimapItem> _makeMinimapItems({
|
|
required DbFilesSummary filesSummary,
|
|
required double itemSize,
|
|
required int itemPerRow,
|
|
required double viewHeight,
|
|
}) {
|
|
_log.info(
|
|
"[_makeMinimapItems] itemSize: $itemSize, itemPerRow: $itemPerRow, viewHeight: $viewHeight");
|
|
double position = 0;
|
|
Date? currentMonth;
|
|
double currentMonthY = 0;
|
|
double currentMonthHeight = 0;
|
|
final results = <_MinimapItem>[];
|
|
for (final e in filesSummary.items.entries) {
|
|
final thisMonth = Date(e.key.year, e.key.month);
|
|
final h = _getLogicalHeightByItemCount(
|
|
itemCount: e.value.count,
|
|
rowHeight: itemSize,
|
|
itemPerRow: itemPerRow,
|
|
);
|
|
if (currentMonth != thisMonth) {
|
|
if (currentMonth != null) {
|
|
results.add(_MinimapItem(
|
|
date: currentMonth,
|
|
logicalY: currentMonthY,
|
|
logicalHeight: currentMonthHeight,
|
|
));
|
|
}
|
|
currentMonth = thisMonth;
|
|
currentMonthY = position;
|
|
currentMonthHeight = h;
|
|
} else {
|
|
currentMonthHeight += h;
|
|
}
|
|
position += h;
|
|
}
|
|
// add the last month
|
|
if (currentMonth != null) {
|
|
results.add(_MinimapItem(
|
|
date: currentMonth,
|
|
logicalY: currentMonthY,
|
|
// we need to take screen(view) height into account
|
|
logicalHeight: currentMonthHeight + viewHeight,
|
|
));
|
|
}
|
|
return results;
|
|
}
|
|
|
|
final DiContainer _c;
|
|
final Account account;
|
|
final FilesController filesController;
|
|
final PrefController prefController;
|
|
final AccountPrefController accountPrefController;
|
|
final CollectionsController collectionsController;
|
|
final SyncController syncController;
|
|
final PersonsController personsController;
|
|
final MetadataController metadataController;
|
|
|
|
final _itemTransformerQueue =
|
|
ComputeQueue<_ItemTransformerArgument, _ItemTransformerResult>();
|
|
final _subscriptions = <StreamSubscription>[];
|
|
var _isHandlingError = false;
|
|
var _isInitialLoad = true;
|
|
var _isQueryingFiles = false;
|
|
Timer? _filesQueryTimer;
|
|
}
|
|
|
|
double _getLogicalHeightByItemCount({
|
|
required int itemCount,
|
|
required double rowHeight,
|
|
required int itemPerRow,
|
|
}) {
|
|
const dateHeight = 32.0;
|
|
return dateHeight + (itemCount / itemPerRow).ceil() * rowHeight;
|
|
}
|
|
|
|
_ItemTransformerResult _buildItem(_ItemTransformerArgument arg) {
|
|
const int Function(FileDescriptor, FileDescriptor) sorter =
|
|
compareFileDescriptorDateTimeDescending;
|
|
|
|
final stopwatch = Stopwatch()..start();
|
|
final sortedFiles =
|
|
arg.files.where((f) => f.fdIsArchived != true).sorted(sorter);
|
|
stopwatch.reset();
|
|
|
|
final tzOffset = clock.now().timeZoneOffset;
|
|
final fileGroups = groupBy<FileDescriptor, Date>(
|
|
sortedFiles,
|
|
(e) {
|
|
// convert to local date
|
|
return e.fdDateTime.add(tzOffset).toDate();
|
|
},
|
|
);
|
|
stopwatch.reset();
|
|
|
|
final dateHelper =
|
|
photo_list_util.DateGroupHelper(isMonthOnly: !arg.isGroupByDay);
|
|
final today = Date.today();
|
|
final memoryCollectionHelper = photo_list_util.MemoryCollectionHelper(
|
|
arg.account,
|
|
today: today,
|
|
dayRange: arg.memoriesDayRange,
|
|
);
|
|
|
|
final dateTimeSet = SplayTreeSet<Date>.of([
|
|
...fileGroups.keys,
|
|
if (arg.summary != null) ...arg.summary!.items.keys,
|
|
], (key1, key2) => key2.compareTo(key1));
|
|
final transformed = <_Item>[];
|
|
final dates = <Date>{};
|
|
for (final d in dateTimeSet) {
|
|
final date = dateHelper.onDate(d);
|
|
if (date != null) {
|
|
transformed.add(_DateItem(
|
|
date: d,
|
|
isMonthOnly: !arg.isGroupByDay,
|
|
));
|
|
}
|
|
if (fileGroups.containsKey(d)) {
|
|
dates.add(d);
|
|
// actual files
|
|
for (final f in fileGroups[d]!..sortedBy((e) => e.fdDateTime).reversed) {
|
|
final item = _buildSingleItem(arg.account, f);
|
|
if (item == null) {
|
|
continue;
|
|
}
|
|
transformed.add(item);
|
|
memoryCollectionHelper.addFile(f, localDate: d);
|
|
}
|
|
} else if (arg.summary != null) {
|
|
// summary
|
|
if (!arg.summary!.items.containsKey(d) ||
|
|
arg.itemPerRow == null ||
|
|
arg.itemSize == null) {
|
|
// ???
|
|
continue;
|
|
}
|
|
final summary = arg.summary!.items[d]!;
|
|
for (var i = 0; i < summary.count; ++i) {
|
|
transformed.add(_SummaryFileItem(date: d, index: i));
|
|
}
|
|
}
|
|
}
|
|
|
|
final memoryCollections = memoryCollectionHelper
|
|
.build((year) => L10n.of(arg.locale).memoryAlbumName(today.year - year));
|
|
return _ItemTransformerResult(
|
|
items: transformed,
|
|
memoryCollections: memoryCollections,
|
|
dates: dates,
|
|
);
|
|
}
|
|
|
|
_Item? _buildSingleItem(Account account, FileDescriptor file) {
|
|
if (file_util.isSupportedImageFormat(file)) {
|
|
return _PhotoItem(
|
|
file: file,
|
|
account: account,
|
|
);
|
|
} else if (file_util.isSupportedVideoFormat(file)) {
|
|
return _VideoItem(
|
|
file: file,
|
|
account: account,
|
|
);
|
|
} else {
|
|
_$__NpLog.log
|
|
.shout("[_buildSingleItem] Unsupported file format: ${file.fdMime}");
|
|
return null;
|
|
}
|
|
}
|
|
|
|
class _ItemMeasurement {
|
|
const _ItemMeasurement({
|
|
required this.itemPerRow,
|
|
required this.itemSize,
|
|
});
|
|
|
|
final int itemPerRow;
|
|
final double itemSize;
|
|
}
|
|
|
|
_ItemMeasurement _measureItem(double viewWidth, double maxItemWidth) {
|
|
final maxCountPerRow = viewWidth / maxItemWidth;
|
|
final itemPerRow = maxCountPerRow.ceil();
|
|
final size = viewWidth / itemPerRow;
|
|
return _ItemMeasurement(itemPerRow: itemPerRow, itemSize: size);
|
|
}
|