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527 lines
17 KiB
527 lines
17 KiB
import 'package:flutter/material.dart';
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import 'package:flutter_screenutil/flutter_screenutil.dart';
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import 'package:get/get.dart';
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import '../../../core/theme/app_palette.dart';
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import '../../../data/services/bailian_multimodal_service.dart';
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import '../controllers/emai_controller.dart';
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import 'widgets/emai_bubble.dart';
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import 'widgets/emai_level_bar.dart';
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/// EMAI 助手对话页。
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///
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/// 结构自上而下：状态条 → 消息列表 → 输入区（按住说话 / 文字输入二选一）。
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/// 所有 AI 能力都在阿里百炼多模态应用里，页面本身只管采音、播音和展示。
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class EmaiView extends GetView<EmaiController> {
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/// [controllerTag]：不传 = 取全局那个 [EmaiController]（EMAI 自己），行为不变。
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/// 传了则取同名 tag 的实例——给复用这套 UI 的其它 agent 用（如 EaiCar）。
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/// [titleKey]：标题栏的 i18n key，默认 EMAI 自己的。
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const EmaiView({super.key, this.controllerTag, this.titleKey = 'agentEmai'});
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final String? controllerTag;
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final String titleKey;
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/// GetView 用它决定 `controller` 取哪个实例
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@override
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String? get tag => controllerTag;
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@override
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Widget build(BuildContext context) {
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final isDark = Theme.of(context).brightness == Brightness.dark;
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return Scaffold(
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backgroundColor: AppPalette.background(isDark),
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appBar: _buildAppBar(isDark),
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body: SafeArea(
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child: Column(
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children: [
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_buildStatusStrip(isDark),
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Expanded(
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child: Stack(
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children: [
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_buildMessageList(isDark),
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_buildJumpToLatest(isDark),
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],
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),
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),
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_buildInputArea(isDark),
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],
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),
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),
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);
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}
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PreferredSizeWidget _buildAppBar(bool isDark) {
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return AppBar(
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backgroundColor: AppPalette.surface(isDark),
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elevation: 0.5,
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centerTitle: true,
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leading: IconButton(
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icon: Icon(Icons.arrow_back_ios,
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size: 20.sp, color: AppPalette.textPrimary(isDark)),
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onPressed: () => Get.back(),
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),
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title: Text(
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titleKey.tr,
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style: TextStyle(
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fontSize: 17.sp,
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fontWeight: FontWeight.w600,
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color: AppPalette.textPrimary(isDark),
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),
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),
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actions: [
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IconButton(
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tooltip: 'emaiClearChat'.tr,
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icon: Icon(Icons.delete_outline,
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size: 21.sp, color: AppPalette.textSecondary(isDark)),
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onPressed: () => _confirmClear(isDark),
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),
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],
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);
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}
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void _confirmClear(bool isDark) {
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if (controller.messages.isEmpty) return;
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Get.dialog(
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AlertDialog(
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backgroundColor: AppPalette.surface(isDark),
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shape:
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RoundedRectangleBorder(borderRadius: BorderRadius.circular(12.r)),
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title: Text('emaiClearChat'.tr, style: TextStyle(fontSize: 16.sp)),
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content: Text('emaiClearConfirm'.tr, style: TextStyle(fontSize: 14.sp)),
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actions: [
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TextButton(
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onPressed: () => Get.back(),
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child: Text('cancel'.tr),
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),
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TextButton(
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onPressed: () {
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controller.clearMessages();
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Get.back();
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},
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child: Text('confirm'.tr,
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style: const TextStyle(color: AppPalette.error)),
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),
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],
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),
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);
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}
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// ---------------- 状态条 ----------------
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Widget _buildStatusStrip(bool isDark) {
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return Obx(() {
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final link = controller.linkState.value;
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final dialog = controller.dialogState.value;
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late final String label;
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late final Color color;
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late final IconData icon;
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VoidCallback? action;
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switch (link) {
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case EmaiLinkState.unconfigured:
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label = 'emaiNotConfigured'.tr;
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color = AppPalette.warning;
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icon = Icons.info_outline;
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// 冷启动时 AppConfig 可能还没拉回来，给个重试入口，
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// 不然用户只能退出重进页面
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action = controller.reconnect;
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break;
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case EmaiLinkState.failed:
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label = 'emaiConnectFailed'.tr;
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color = AppPalette.error;
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icon = Icons.error_outline;
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action = controller.reconnect;
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break;
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case EmaiLinkState.connecting:
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label = 'emaiConnecting'.tr;
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color = AppPalette.textSecondary(isDark);
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icon = Icons.sync;
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break;
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case EmaiLinkState.onEarphone:
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label = 'emaiOnEarphone'.tr;
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color = AppPalette.accent;
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icon = Icons.headset_mic;
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// 没有这个入口的话，耳机会话不结束页面就永远停在这个状态
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action = controller.takeBackFromEarphone;
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break;
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case EmaiLinkState.idle:
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label = 'emaiOffline'.tr;
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color = AppPalette.textSecondary(isDark);
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icon = Icons.cloud_off;
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action = controller.reconnect;
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break;
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case EmaiLinkState.ready:
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switch (dialog) {
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case BailianDialogState.listening:
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// 「正在聆听」只在麦克风真的开着时显示。
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//
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// 服务端在播报期间、以及播报刚结束时也会把对话状态推成 listening，
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// 但那时本地麦克风并没有开（本页是「按住说话」，isTalking 才代表开麦）。
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// 照着服务端状态无脑显示"正在聆听"，会让用户以为 App 一直在录他说话。
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if (controller.isTalking.value) {
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label = 'emaiListening'.tr;
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color = AppPalette.accent;
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icon = Icons.hearing;
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} else {
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label = 'emaiReady'.tr;
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color = AppPalette.success;
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icon = Icons.check_circle_outline;
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}
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break;
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case BailianDialogState.thinking:
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label = 'emaiThinking'.tr;
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color = AppPalette.warning;
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icon = Icons.psychology_outlined;
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break;
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case BailianDialogState.responding:
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label = 'emaiResponding'.tr;
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color = AppPalette.success;
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icon = Icons.graphic_eq;
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break;
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case BailianDialogState.idle:
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label = 'emaiReady'.tr;
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color = AppPalette.success;
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icon = Icons.check_circle_outline;
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break;
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}
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}
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return Container(
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width: double.infinity,
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padding: EdgeInsets.symmetric(horizontal: 16.w, vertical: 7.h),
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color: color.withValues(alpha: isDark ? 0.14 : 0.08),
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child: Row(
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children: [
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Icon(icon, size: 15.sp, color: color),
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SizedBox(width: 6.w),
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Expanded(
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child: Text(
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label,
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style: TextStyle(fontSize: 12.sp, color: color),
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overflow: TextOverflow.ellipsis,
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),
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),
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if (action != null)
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GestureDetector(
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onTap: action,
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child: Text(
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link == EmaiLinkState.onEarphone
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? 'emaiTakeBack'.tr
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: 'emaiReconnect'.tr,
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style: TextStyle(
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fontSize: 12.sp,
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color: color,
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fontWeight: FontWeight.w600,
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decoration: TextDecoration.underline,
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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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// ---------------- 消息列表 ----------------
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Widget _buildMessageList(bool isDark) {
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return Obx(() {
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if (controller.messages.isEmpty) return _buildEmptyState(isDark);
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return ListView.builder(
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controller: controller.scrollController,
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padding: EdgeInsets.fromLTRB(14.w, 12.h, 14.w, 12.h),
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keyboardDismissBehavior: ScrollViewKeyboardDismissBehavior.onDrag,
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itemCount: controller.messages.length,
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itemBuilder: (_, i) =>
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EmaiBubble(message: controller.messages[i], isDark: isDark),
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);
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});
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}
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/// 用户往上翻历史时，右下角给一个回到最新的入口。
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/// 不然翻上去之后要一路拖回来——历史可能有几百条。
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Widget _buildJumpToLatest(bool isDark) {
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return Obx(() {
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if (controller.isPinnedToBottom.value || controller.messages.isEmpty) {
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return const SizedBox.shrink();
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}
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return Positioned(
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right: 14.w,
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bottom: 14.h,
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child: GestureDetector(
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onTap: controller.jumpToLatest,
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child: Container(
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width: 36.w,
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height: 36.w,
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decoration: BoxDecoration(
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color: AppPalette.surface(isDark),
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shape: BoxShape.circle,
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border: Border.all(color: AppPalette.border(isDark)),
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boxShadow: [
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BoxShadow(
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color: Colors.black.withValues(alpha: isDark ? 0.4 : 0.12),
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blurRadius: 6,
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offset: const Offset(0, 2),
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),
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],
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),
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child: Icon(Icons.keyboard_double_arrow_down,
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size: 19.sp, color: AppPalette.textSecondary(isDark)),
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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 _buildEmptyState(bool isDark) {
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return Center(
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child: Padding(
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padding: EdgeInsets.symmetric(horizontal: 40.w),
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child: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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Container(
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width: 72.w,
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height: 72.w,
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decoration: const BoxDecoration(
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shape: BoxShape.circle,
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gradient: LinearGradient(
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colors: [Color(0xFF5B8DEF), Color(0xFF7E57C2)],
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),
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),
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child: Icon(Icons.auto_awesome, size: 34.sp, color: Colors.white),
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),
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SizedBox(height: 16.h),
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Text(
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'agentEmai'.tr,
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style: TextStyle(
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fontSize: 17.sp,
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fontWeight: FontWeight.w600,
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color: AppPalette.textPrimary(isDark),
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),
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),
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SizedBox(height: 8.h),
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Text(
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'emaiEmptyHint'.tr,
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textAlign: TextAlign.center,
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style: TextStyle(
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fontSize: 13.sp,
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height: 1.5,
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color: AppPalette.textSecondary(isDark),
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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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// ---------------- 输入区 ----------------
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Widget _buildInputArea(bool isDark) {
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return Container(
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decoration: BoxDecoration(
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color: AppPalette.surface(isDark),
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border: Border(top: BorderSide(color: AppPalette.border(isDark))),
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),
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padding: EdgeInsets.fromLTRB(12.w, 10.h, 12.w, 10.h),
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child: Obx(() {
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return Row(
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crossAxisAlignment: CrossAxisAlignment.end,
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children: [
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IconButton(
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padding: EdgeInsets.zero,
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constraints: BoxConstraints(minWidth: 38.w, minHeight: 38.w),
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icon: Icon(
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controller.isTextMode.value ? Icons.mic_none : Icons.keyboard,
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size: 24.sp,
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color: AppPalette.textSecondary(isDark),
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),
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tooltip: controller.isTextMode.value
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? 'emaiSwitchToVoice'.tr
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: 'emaiSwitchToText'.tr,
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onPressed: controller.toggleInputMode,
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),
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SizedBox(width: 6.w),
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Expanded(
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child: controller.isTextMode.value
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? _buildTextField(isDark)
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: _buildTalkButton(isDark),
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),
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SizedBox(width: 6.w),
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_buildTrailingButton(isDark),
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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 _buildTextField(bool isDark) {
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return Container(
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constraints: BoxConstraints(minHeight: 40.h, maxHeight: 120.h),
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padding: EdgeInsets.symmetric(horizontal: 14.w),
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decoration: BoxDecoration(
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color: AppPalette.background(isDark),
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borderRadius: BorderRadius.circular(20.r),
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),
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child: TextField(
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controller: controller.textController,
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maxLines: null,
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textInputAction: TextInputAction.send,
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onSubmitted: (_) => controller.sendTextMessage(),
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style: TextStyle(
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fontSize: 15.sp,
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color: AppPalette.textPrimary(isDark),
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),
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decoration: InputDecoration(
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border: InputBorder.none,
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isDense: true,
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contentPadding: EdgeInsets.symmetric(vertical: 11.h),
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hintText: 'emaiInputHint'.tr,
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hintStyle: TextStyle(
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fontSize: 15.sp,
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color: AppPalette.textHint(isDark),
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),
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),
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),
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);
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}
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/// 语音输入按钮。两种用法共用这一个控件：
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///
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/// - **点一下** → 进入/退出「连续对话」（服务端 VAD 切句，麦克风一直开着）
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/// - **按住不放** → 单句模式（客户端划段），上滑取消
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///
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/// 点击与按住的区分放在 controller 的 [EmaiController.endTalk] 里做
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/// （按下到松开短于 250ms 算点击）。放在那边是因为按下的瞬间就已经开麦并
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/// 开了一段语音，判成点击时要把那一段取消掉——这是 controller 的事。
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Widget _buildTalkButton(bool isDark) {
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final enabled = controller.canTalk;
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final continuous = controller.isContinuous.value;
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// 连续对话中：整条就是一个「点击结束」的开关，不再有按住/上滑那套语义
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if (continuous) {
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return GestureDetector(
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onTap: controller.toggleContinuous,
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child: Container(
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height: 40.h,
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alignment: Alignment.center,
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decoration: BoxDecoration(
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color: AppPalette.accentDark,
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borderRadius: BorderRadius.circular(20.r),
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),
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child: Row(
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mainAxisSize: MainAxisSize.min,
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children: [
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EmaiLevelBar(color: Colors.white, level: controller.level.value),
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SizedBox(width: 10.w),
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Text(
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'emaiContinuousOn'.tr,
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style: TextStyle(
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fontSize: 14.sp,
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fontWeight: FontWeight.w500,
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color: Colors.white),
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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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final talking = controller.isTalking.value;
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final cancelling = controller.isCancelPending.value;
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final Color bg = !enabled
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? AppPalette.border(isDark)
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: cancelling
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? AppPalette.error
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: talking
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? AppPalette.accentDark
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: AppPalette.accent;
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final String label = !enabled
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? 'emaiOffline'.tr
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: cancelling
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? 'emaiReleaseToCancel'.tr
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: talking
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? 'emaiReleaseToSend'.tr
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// 空闲态展示「点击开始连续对话」而不是「按住说话」：
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// 点击是这个按钮现在的主用法，按住说话仍然可用但不再是主推的
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: 'emaiTapForContinuous'.tr;
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return Listener(
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onPointerDown: enabled ? (_) => controller.startTalk() : null,
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onPointerMove: (e) {
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if (!controller.isTalking.value) return;
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// 上滑超过按钮高度的一半就进入"松开取消"
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controller.updateCancelPending(e.localPosition.dy < -20);
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},
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onPointerUp: (_) => controller.endTalk(),
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onPointerCancel: (_) => controller.endTalk(),
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child: Container(
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height: 40.h,
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alignment: Alignment.center,
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decoration: BoxDecoration(
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color: bg,
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borderRadius: BorderRadius.circular(20.r),
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),
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child: Row(
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mainAxisSize: MainAxisSize.min,
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children: [
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if (talking) ...[
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EmaiLevelBar(color: Colors.white, level: controller.level.value),
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SizedBox(width: 10.w),
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],
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Text(
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label,
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style: TextStyle(
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fontSize: 14.sp,
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fontWeight: FontWeight.w500,
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color: enabled ? Colors.white : AppPalette.textHint(isDark),
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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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/// 文字模式下是发送键；语音模式下、助手正在说话时是打断键
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Widget _buildTrailingButton(bool isDark) {
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if (controller.isTextMode.value) {
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final active = controller.hasInputText.value && controller.canTalk;
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return _circleButton(
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icon: Icons.arrow_upward,
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bg: active ? AppPalette.accent : AppPalette.border(isDark),
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fg: active ? Colors.white : AppPalette.textHint(isDark),
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onTap: active ? controller.sendTextMessage : null,
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);
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}
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final responding = controller.isResponding;
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return _circleButton(
|
|
icon: Icons.stop,
|
|
bg: responding ? AppPalette.error : AppPalette.border(isDark),
|
|
fg: responding ? Colors.white : AppPalette.textHint(isDark),
|
|
onTap: responding ? controller.interrupt : null,
|
|
);
|
|
}
|
|
|
|
Widget _circleButton({
|
|
required IconData icon,
|
|
required Color bg,
|
|
required Color fg,
|
|
VoidCallback? onTap,
|
|
}) {
|
|
return GestureDetector(
|
|
onTap: onTap,
|
|
child: Container(
|
|
width: 40.w,
|
|
height: 40.w,
|
|
decoration: BoxDecoration(color: bg, shape: BoxShape.circle),
|
|
child: Icon(icon, size: 20.sp, color: fg),
|
|
),
|
|
);
|
|
}
|
|
}
|
|
|