84 lines
2.7 KiB
Dart
84 lines
2.7 KiB
Dart
import 'package:flutter/material.dart';
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import '../../../../core/theme/app_colors.dart';
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import '../../domain/entities/chat_message.dart';
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/// Renders a single chat message bubble with appropriate styling
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/// for user and assistant messages.
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class MessageBubble extends StatelessWidget {
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final ChatMessage message;
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const MessageBubble({super.key, required this.message});
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bool get _isUser => message.role == MessageRole.user;
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@override
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Widget build(BuildContext context) {
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return Align(
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alignment: _isUser ? Alignment.centerRight : Alignment.centerLeft,
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child: Container(
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margin: const EdgeInsets.symmetric(vertical: 4),
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padding: const EdgeInsets.symmetric(horizontal: 14, vertical: 10),
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constraints: BoxConstraints(
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maxWidth: MediaQuery.of(context).size.width * 0.78,
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),
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decoration: BoxDecoration(
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color: _isUser ? AppColors.primary : AppColors.surface,
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borderRadius: BorderRadius.only(
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topLeft: const Radius.circular(16),
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topRight: const Radius.circular(16),
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bottomLeft: Radius.circular(_isUser ? 16 : 4),
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bottomRight: Radius.circular(_isUser ? 4 : 16),
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),
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),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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// Role label for assistant messages
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if (!_isUser && message.type == MessageType.thinking)
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Padding(
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padding: const EdgeInsets.only(bottom: 4),
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child: Text(
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'思考中...',
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style: TextStyle(
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color: AppColors.textMuted,
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fontSize: 11,
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fontStyle: FontStyle.italic,
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),
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),
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),
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// Message content
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SelectableText(
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message.content,
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style: TextStyle(
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color: _isUser ? Colors.white : AppColors.textPrimary,
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fontSize: 15,
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),
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),
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// Timestamp
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Padding(
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padding: const EdgeInsets.only(top: 4),
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child: Text(
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_formatTime(message.timestamp),
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style: TextStyle(
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color: _isUser
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? Colors.white.withOpacity(0.6)
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: AppColors.textMuted,
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fontSize: 10,
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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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String _formatTime(DateTime time) {
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final hour = time.hour.toString().padLeft(2, '0');
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final minute = time.minute.toString().padLeft(2, '0');
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return '$hour:$minute';
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}
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}
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