309 lines
12 KiB
Dart
309 lines
12 KiB
Dart
import 'package:contacts_plus_plus/client_holder.dart';
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import 'package:contacts_plus_plus/clients/messaging_client.dart';
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import 'package:contacts_plus_plus/models/friend.dart';
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import 'package:contacts_plus_plus/models/message.dart';
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import 'package:contacts_plus_plus/widgets/default_error_widget.dart';
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import 'package:contacts_plus_plus/widgets/friends/friend_online_status_indicator.dart';
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import 'package:contacts_plus_plus/widgets/messages/messages_session_header.dart';
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import 'package:flutter/material.dart';
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import 'package:provider/provider.dart';
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import 'message_bubble.dart';
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class MessagesList extends StatefulWidget {
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const MessagesList({required this.friend, super.key});
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final Friend friend;
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@override
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State<StatefulWidget> createState() => _MessagesListState();
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}
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class _MessagesListState extends State<MessagesList> with SingleTickerProviderStateMixin {
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final TextEditingController _messageTextController = TextEditingController();
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final ScrollController _sessionListScrollController = ScrollController();
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final ScrollController _messageScrollController = ScrollController();
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bool _isSendable = false;
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bool _showSessionListScrollChevron = false;
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bool _showBottomBarShadow = false;
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double get _shevronOpacity => _showSessionListScrollChevron ? 1.0 : 0.0;
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@override
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void dispose() {
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_messageTextController.dispose();
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_sessionListScrollController.dispose();
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super.dispose();
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}
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@override
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void initState() {
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super.initState();
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_sessionListScrollController.addListener(() {
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if (_sessionListScrollController.position.maxScrollExtent > 0 && !_showSessionListScrollChevron) {
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setState(() {
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_showSessionListScrollChevron = true;
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});
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}
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if (_sessionListScrollController.position.atEdge && _sessionListScrollController.position.pixels > 0
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&& _showSessionListScrollChevron) {
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setState(() {
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_showSessionListScrollChevron = false;
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});
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}
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});
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_messageScrollController.addListener(() {
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if (!_messageScrollController.hasClients) return;
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if (_messageScrollController.position.atEdge && _messageScrollController.position.pixels == 0 &&
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_showBottomBarShadow) {
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setState(() {
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_showBottomBarShadow = false;
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});
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} else if (!_showBottomBarShadow) {
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setState(() {
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_showBottomBarShadow = true;
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});
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}
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});
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}
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@override
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Widget build(BuildContext context) {
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final apiClient = ClientHolder
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.of(context)
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.apiClient;
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var sessions = widget.friend.userStatus.activeSessions;
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final appBarColor = Theme
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.of(context)
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.colorScheme
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.surfaceVariant;
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return Consumer<MessagingClient>(
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builder: (context, mClient, _) {
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final cache = mClient.getUserMessageCache(widget.friend.id);
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return Scaffold(
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appBar: AppBar(
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title: Row(
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crossAxisAlignment: CrossAxisAlignment.center,
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children: [
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FriendOnlineStatusIndicator(userStatus: widget.friend.userStatus),
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const SizedBox(width: 8,),
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Text(widget.friend.username),
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if (widget.friend.isHeadless) Padding(
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padding: const EdgeInsets.only(left: 12),
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child: Icon(Icons.dns, size: 18, color: Theme
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.of(context)
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.colorScheme
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.onSecondaryContainer
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.withAlpha(150),),
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),
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],
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),
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scrolledUnderElevation: 0.0,
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backgroundColor: appBarColor,
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),
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body: Column(
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children: [
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if (sessions.isNotEmpty) Container(
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constraints: const BoxConstraints(maxHeight: 64),
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decoration: BoxDecoration(
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color: appBarColor,
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border: const Border(top: BorderSide(width: 1, color: Colors.black26),)
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),
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child: Stack(
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children: [
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ListView.builder(
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controller: _sessionListScrollController,
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scrollDirection: Axis.horizontal,
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itemCount: sessions.length,
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itemBuilder: (context, index) => SessionTile(session: sessions[index]),
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),
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AnimatedOpacity(
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opacity: _shevronOpacity,
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curve: Curves.easeOut,
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duration: const Duration(milliseconds: 200),
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child: Align(
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alignment: Alignment.centerRight,
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child: Container(
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padding: const EdgeInsets.only(left: 16, right: 4, top: 1, bottom: 1),
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decoration: BoxDecoration(
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gradient: LinearGradient(
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begin: Alignment.centerLeft,
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end: Alignment.centerRight,
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colors: [
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appBarColor.withOpacity(0),
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appBarColor,
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appBarColor,
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],
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),
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),
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height: double.infinity,
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child: const Icon(Icons.chevron_right),
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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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Expanded(
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child: Builder(
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builder: (context) {
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if (cache == null) {
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return const Column(
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mainAxisAlignment: MainAxisAlignment.start,
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children: [
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LinearProgressIndicator()
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],
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);
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}
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if (cache.error != null) {
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return DefaultErrorWidget(
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message: cache.error.toString(),
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onRetry: () {
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setState(() {
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mClient.deleteUserMessageCache(widget.friend.id);
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});
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mClient.loadUserMessageCache(widget.friend.id);
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},
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);
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}
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if (cache.messages.isEmpty) {
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return Center(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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const Icon(Icons.message_outlined),
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Padding(
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padding: const EdgeInsets.symmetric(vertical: 24),
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child: Text(
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"There are no messages here\nWhy not say hello?",
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textAlign: TextAlign.center,
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style: Theme
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.of(context)
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.textTheme
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.titleMedium,
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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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return ListView.builder(
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controller: _messageScrollController,
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reverse: true,
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itemCount: cache.messages.length,
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itemBuilder: (context, index) {
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final entry = cache.messages[index];
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if (index == cache.messages.length - 1) {
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return Padding(
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padding: const EdgeInsets.only(top: 12),
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child: MessageBubble(message: entry,),
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);
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}
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return MessageBubble(message: entry,);
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},
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);
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},
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),
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),
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AnimatedContainer(
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decoration: BoxDecoration(
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boxShadow: [
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BoxShadow(
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blurRadius: _showBottomBarShadow ? 8 : 0,
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color: Theme
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.of(context)
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.shadowColor,
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offset: const Offset(0, 4),
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),
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],
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color: Theme
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.of(context)
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.colorScheme
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.background,
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),
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padding: const EdgeInsets.symmetric(horizontal: 4),
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duration: const Duration(milliseconds: 250),
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child: Row(
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children: [
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Expanded(
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child: Padding(
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padding: const EdgeInsets.all(8),
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child: TextField(
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enabled: cache != null && cache.error == null,
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autocorrect: true,
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controller: _messageTextController,
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maxLines: 4,
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minLines: 1,
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onChanged: (text) {
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if (text.isNotEmpty && !_isSendable) {
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setState(() {
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_isSendable = true;
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});
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} else if (text.isEmpty && _isSendable) {
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setState(() {
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_isSendable = false;
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});
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}
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},
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decoration: InputDecoration(
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isDense: true,
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hintText: "Message ${widget.friend
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.username}...",
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hintMaxLines: 1,
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contentPadding: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
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border: OutlineInputBorder(
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borderRadius: BorderRadius.circular(24)
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)
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),
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),
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),
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),
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Padding(
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padding: const EdgeInsets.only(left: 8, right: 4.0),
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child: IconButton(
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splashRadius: 24,
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onPressed: _isSendable ? () async {
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setState(() {
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_isSendable = false;
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});
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final message = Message(
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id: Message.generateId(),
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recipientId: widget.friend.id,
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senderId: apiClient.userId,
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type: MessageType.text,
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content: _messageTextController.text,
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sendTime: DateTime.now().toUtc(),
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);
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try {
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mClient.sendMessage(message);
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_messageTextController.clear();
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setState(() {});
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} catch (e) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text("Failed to send message\n$e",
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maxLines: null,
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),
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),
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);
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setState(() {
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_isSendable = true;
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});
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}
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} : null,
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iconSize: 28,
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icon: const Icon(Icons.send),
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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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}
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);
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}
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}
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