🎨 Use feature based folder structure
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214
lib/chat/chat_widgets/message_item_wrapper.dart
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214
lib/chat/chat_widgets/message_item_wrapper.dart
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import 'package:flutter/material.dart';
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import 'package:flutter_hooks/flutter_hooks.dart';
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import 'package:hooks_riverpod/hooks_riverpod.dart';
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import 'package:island/chat/chat_models/chat.dart';
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import 'package:island/chat/chat_widgets/message_item.dart';
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import 'package:island/data/message.dart';
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final animatedMessagesProvider = NotifierProvider.autoDispose(
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AnimatedMessagesNotifier.new,
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);
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class AnimatedMessagesNotifier extends Notifier<Set<String>> {
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@override
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Set<String> build() {
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return {};
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}
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void addMessage(String messageId) {
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state = {...state, messageId};
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}
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}
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class MessageItemWrapper extends HookConsumerWidget {
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final LocalChatMessage message;
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final int index;
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final bool isLastInGroup;
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final bool isSelectionMode;
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final Set<String> selectedMessages;
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final AsyncValue<SnChatMember?> chatIdentity;
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final VoidCallback toggleSelectionMode;
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final Function(String) toggleMessageSelection;
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final Function(String, LocalChatMessage) onMessageAction;
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final Function(String) onJump;
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final Map<String, Map<int, double?>> attachmentProgress;
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final bool disableAnimation;
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final DateTime roomOpenTime;
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const MessageItemWrapper({
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super.key,
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required this.message,
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required this.index,
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required this.isLastInGroup,
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required this.isSelectionMode,
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required this.selectedMessages,
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required this.chatIdentity,
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required this.toggleSelectionMode,
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required this.toggleMessageSelection,
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required this.onMessageAction,
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required this.onJump,
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required this.attachmentProgress,
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required this.disableAnimation,
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required this.roomOpenTime,
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});
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Widget _buildContent(BuildContext context, SnChatMember? identity) {
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final isSelected = selectedMessages.contains(message.id);
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final isCurrentUser = identity?.id == message.senderId;
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return GestureDetector(
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onLongPress: () {
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if (!isSelectionMode) {
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toggleSelectionMode();
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toggleMessageSelection(message.id);
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}
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},
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onTap: () {
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if (isSelectionMode) {
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toggleMessageSelection(message.id);
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}
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},
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child: Container(
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color: isSelected
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? Theme.of(context).colorScheme.primaryContainer.withOpacity(0.3)
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: null,
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child: Stack(
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children: [
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MessageItem(
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// If animation is disabled, we might want to pass a key to maintain state?
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// But here we are inside the wrapper.
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key: ValueKey('item-${message.id}'),
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message: message,
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isCurrentUser: isCurrentUser,
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onAction: isSelectionMode
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? null
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: (action) => onMessageAction(action, message),
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onJump: onJump,
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progress: attachmentProgress[message.id],
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showAvatar: isLastInGroup,
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isSelectionMode: isSelectionMode,
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isSelected: isSelected,
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onToggleSelection: toggleMessageSelection,
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onEnterSelectionMode: () {
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if (!isSelectionMode) toggleSelectionMode();
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},
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),
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if (isSelected)
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Positioned(
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top: 8,
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right: 8,
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child: Container(
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width: 16,
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height: 16,
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decoration: BoxDecoration(
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color: Theme.of(context).colorScheme.primary,
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shape: BoxShape.circle,
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),
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child: Icon(
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Icons.check,
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size: 12,
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color: Theme.of(context).colorScheme.onPrimary,
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),
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),
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),
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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 _buildLoading() {
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return MessageItem(
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message: message,
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isCurrentUser: false,
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onAction: null,
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progress: null,
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showAvatar: false,
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onJump: (_) {},
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);
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}
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@override
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Widget build(BuildContext context, WidgetRef ref) {
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// Animation logic
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final animatedMessages = ref.watch(animatedMessagesProvider);
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final isNewMessage = message.createdAt.isAfter(roomOpenTime);
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final hasAnimated = animatedMessages.contains(message.id);
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// Only animate if:
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// 1. Animation is enabled
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// 2. Message is new (created after room open)
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// 3. Has not animated yet
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final shouldAnimate = !disableAnimation && isNewMessage && !hasAnimated;
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final child = chatIdentity.when(
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skipError: true,
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data: (identity) => _buildContent(context, identity),
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loading: () => _buildLoading(),
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error: (_, _) => const SizedBox.shrink(),
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);
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final controller = useAnimationController(
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duration: Duration(milliseconds: 400 + (index % 5) * 50),
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);
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final hasStarted = useState(false);
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useEffect(() {
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if (shouldAnimate && !hasStarted.value) {
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hasStarted.value = true;
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controller.forward().then((_) {
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WidgetsBinding.instance.addPostFrameCallback((_) {
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ref.read(animatedMessagesProvider.notifier).addMessage(message.id);
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});
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});
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}
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return null;
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}, [shouldAnimate]);
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if (!shouldAnimate) {
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return child;
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}
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final curvedAnimation = useMemoized(
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() => CurvedAnimation(parent: controller, curve: Curves.easeOutQuart),
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[controller],
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);
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final sizeAnimation = useMemoized(
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() => Tween<double>(begin: 0.0, end: 1.0).animate(curvedAnimation),
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[curvedAnimation],
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);
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final slideAnimation = useMemoized(
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() => Tween<Offset>(
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begin: const Offset(0, 0.12),
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end: Offset.zero,
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).animate(curvedAnimation),
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[curvedAnimation],
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);
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final fadeAnimation = useMemoized(
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() => Tween<double>(begin: 0.0, end: 1.0).animate(
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CurvedAnimation(
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parent: controller,
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curve: const Interval(0.1, 1.0, curve: Curves.easeOut),
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),
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),
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[controller],
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);
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return AnimatedBuilder(
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animation: controller,
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builder: (context, child) => FadeTransition(
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opacity: fadeAnimation,
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child: SizeTransition(
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axis: Axis.vertical,
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sizeFactor: sizeAnimation,
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child: SlideTransition(position: slideAnimation, child: child),
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),
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),
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child: child,
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);
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}
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}
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