146 lines
4.5 KiB
Dart
146 lines
4.5 KiB
Dart
import "dart:async";
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import 'package:flutter/material.dart';
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import "package:flutter_animate/flutter_animate.dart";
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import "package:photos/core/event_bus.dart";
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import "package:photos/events/memories_setting_changed.dart";
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import 'package:photos/models/memory.dart';
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import 'package:photos/services/memories_service.dart';
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import "package:photos/ui/common/loading_widget.dart";
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import 'package:photos/ui/home/memories/memory_cover_widget.dart';
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class MemoriesWidget extends StatefulWidget {
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const MemoriesWidget({Key? key}) : super(key: key);
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@override
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State<MemoriesWidget> createState() => _MemoriesWidgetState();
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}
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class _MemoriesWidgetState extends State<MemoriesWidget> {
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late ScrollController _controller;
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late StreamSubscription<MemoriesSettingChanged> _subscription;
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late double _maxHeight;
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late double _maxWidth;
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@override
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void initState() {
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super.initState();
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_subscription = Bus.instance.on<MemoriesSettingChanged>().listen((event) {
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if (mounted) {
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setState(() {});
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}
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});
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_controller = ScrollController();
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}
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@override
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void didChangeDependencies() {
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super.didChangeDependencies();
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final screenWidth = MediaQuery.sizeOf(context).width;
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//factor will be 2 for most phones in portrait mode
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final factor = (screenWidth / 220).ceil();
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_maxWidth = screenWidth / (factor * 2);
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_maxHeight = _maxWidth / MemoryCoverWidget.aspectRatio;
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}
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@override
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void dispose() {
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_subscription.cancel();
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_controller.dispose();
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super.dispose();
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}
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@override
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Widget build(BuildContext context) {
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if (!MemoriesService.instance.showMemories) {
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return const SizedBox.shrink();
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}
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return FutureBuilder<List<Memory>>(
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future: MemoriesService.instance.getMemories(),
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builder: (context, snapshot) {
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if (snapshot.hasData && snapshot.data!.isEmpty) {
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return const SizedBox.shrink();
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}
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if (snapshot.hasError || !snapshot.hasData) {
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return SizedBox(
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height: _maxHeight + 12 + 10,
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child: const EnteLoadingWidget(),
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);
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} else {
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return Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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const SizedBox(
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height: 12,
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),
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_buildMemories(snapshot.data!),
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const SizedBox(height: 10),
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],
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).animate().fadeIn(
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duration: const Duration(milliseconds: 250),
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curve: Curves.easeInOutCirc,
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);
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}
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},
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);
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}
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Widget _buildMemories(List<Memory> memories) {
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final collatedMemories = _collateMemories(memories);
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return SizedBox(
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height: _maxHeight,
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child: ListView.builder(
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physics: const AlwaysScrollableScrollPhysics(
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parent: BouncingScrollPhysics(),
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),
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scrollDirection: Axis.horizontal,
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controller: _controller,
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itemCount: collatedMemories.length,
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itemBuilder: (context, itemIndex) {
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final maxScaleOffsetX =
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_maxWidth + MemoryCoverWidget.horizontalPadding * 2;
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final offsetOfItem =
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(_maxWidth + MemoryCoverWidget.horizontalPadding * 2) * itemIndex;
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return MemoryCoverWidget(
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memories: collatedMemories[itemIndex],
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controller: _controller,
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offsetOfItem: offsetOfItem,
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maxHeight: _maxHeight,
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maxWidth: _maxWidth,
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maxScaleOffsetX: maxScaleOffsetX,
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);
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},
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),
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);
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}
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List<List<Memory>> _collateMemories(List<Memory> memories) {
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final List<Memory> yearlyMemories = [];
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final List<List<Memory>> collatedMemories = [];
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for (int index = 0; index < memories.length; index++) {
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if (index > 0 &&
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!_areMemoriesFromSameYear(memories[index - 1], memories[index])) {
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final List<Memory> collatedYearlyMemories = [];
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collatedYearlyMemories.addAll(yearlyMemories);
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collatedMemories.add(collatedYearlyMemories);
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yearlyMemories.clear();
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}
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yearlyMemories.add(memories[index]);
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}
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if (yearlyMemories.isNotEmpty) {
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collatedMemories.add(yearlyMemories);
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}
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return collatedMemories.reversed.toList();
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}
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bool _areMemoriesFromSameYear(Memory first, Memory second) {
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final firstDate =
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DateTime.fromMicrosecondsSinceEpoch(first.file.creationTime!);
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final secondDate =
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DateTime.fromMicrosecondsSinceEpoch(second.file.creationTime!);
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return firstDate.year == secondDate.year;
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}
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}
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