for merge

2025-12-12 19:17:58 +00:00 · 2022-05-12 16:50:30 +08:00
parent 9a3e6c63cd
commit 6de0fa781c
149 changed files with 0 additions and 357 deletions
--- a/flutter/lib/models/chat_model.dart
+++ b/flutter/lib/models/chat_model.dart
@@ -0,0 +1,103 @@
+import 'dart:convert';
+
+import 'package:dash_chat/dash_chat.dart';
+import 'package:flutter/material.dart';
+
+import '../widgets/overlay.dart';
+import 'model.dart';
+
+class ChatModel with ChangeNotifier {
+  static final clientModeID = -1;
+
+  final Map<int, List<ChatMessage>> _messages = Map()..[clientModeID] = [];
+
+  final ChatUser me = ChatUser(
+    uid: "",
+    name: "Me",
+  );
+
+  final _scroller = ScrollController();
+
+  var _currentID = clientModeID;
+
+  ScrollController get scroller => _scroller;
+
+  Map<int, List<ChatMessage>> get messages => _messages;
+
+  int get currentID => _currentID;
+
+  ChatUser get currentUser =>
+      FFI.serverModel.clients[_currentID]?.chatUser ?? me;
+
+  changeCurrentID(int id) {
+    if (_messages.containsKey(id)) {
+      _currentID = id;
+      notifyListeners();
+    } else {
+      final chatUser = FFI.serverModel.clients[id]?.chatUser;
+      if (chatUser == null) {
+        return debugPrint(
+            "Failed to changeCurrentID,remote user doesn't exist");
+      }
+      _messages[id] = [];
+      _currentID = id;
+    }
+  }
+
+  receive(int id, String text) {
+    if (text.isEmpty) return;
+    // first message show overlay icon
+    if (chatIconOverlayEntry == null) {
+      showChatIconOverlay();
+    }
+    late final chatUser;
+    if (id == clientModeID) {
+      chatUser = ChatUser(
+        name: FFI.ffiModel.pi.username,
+        uid: FFI.getId(),
+      );
+    } else {
+      chatUser = FFI.serverModel.clients[id]?.chatUser;
+    }
+    if (chatUser == null) {
+      return debugPrint("Failed to receive msg,user doesn't exist");
+    }
+    if (!_messages.containsKey(id)) {
+      _messages[id] = [];
+    }
+    _messages[id]!.add(ChatMessage(text: text, user: chatUser));
+    _currentID = id;
+    notifyListeners();
+    scrollToBottom();
+  }
+
+  scrollToBottom() {
+    Future.delayed(Duration(milliseconds: 500), () {
+      _scroller.animateTo(_scroller.position.maxScrollExtent,
+          duration: Duration(milliseconds: 200),
+          curve: Curves.fastLinearToSlowEaseIn);
+    });
+  }
+
+  send(ChatMessage message) {
+    if (message.text != null && message.text!.isNotEmpty) {
+      _messages[_currentID]?.add(message);
+      if (_currentID == clientModeID) {
+        FFI.setByName("chat_client_mode", message.text!);
+      } else {
+        final msg = Map()
+          ..["id"] = _currentID
+          ..["text"] = message.text!;
+        FFI.setByName("chat_server_mode", jsonEncode(msg));
+      }
+    }
+    notifyListeners();
+    scrollToBottom();
+  }
+
+  close() {
+    hideChatIconOverlay();
+    hideChatWindowOverlay();
+    notifyListeners();
+  }
+}