for merge

flutter/lib/pages/chat_page.dart

@@ -0,0 +1,81 @@
+import 'package:dash_chat/dash_chat.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_hbb/common.dart';
+import 'package:flutter_hbb/models/chat_model.dart';
+import 'package:provider/provider.dart';
+import '../models/model.dart';
+import 'home_page.dart';
+
+ChatPage chatPage = ChatPage();
+
+class ChatPage extends StatelessWidget implements PageShape {
+  @override
+  final title = translate("Chat");
+
+  @override
+  final icon = Icon(Icons.chat);
+
+  @override
+  final appBarActions = [
+    PopupMenuButton<int>(
+        icon: Icon(Icons.group),
+        itemBuilder: (context) {
+          final chatModel = FFI.chatModel;
+          final serverModel = FFI.serverModel;
+          return chatModel.messages.entries.map((entry) {
+            final id = entry.key;
+            final user = serverModel.clients[id]?.chatUser ?? chatModel.me;
+            return PopupMenuItem<int>(
+              child: Text("${user.name}   ${user.uid}"),
+              value: id,
+            );
+          }).toList();
+        },
+        onSelected: (id) {
+          FFI.chatModel.changeCurrentID(id);
+        })
+  ];
+
+  @override
+  Widget build(BuildContext context) {
+    return ChangeNotifierProvider.value(
+        value: FFI.chatModel,
+        child: Container(
+            color: MyTheme.grayBg,
+            child: Consumer<ChatModel>(builder: (context, chatModel, child) {
+              final currentUser = chatModel.currentUser;
+              return Stack(
+                children: [
+                  DashChat(
+                    inputContainerStyle: BoxDecoration(color: Colors.white70),
+                    sendOnEnter: false,
+                    // if true,reload keyboard everytime,need fix
+                    onSend: (chatMsg) {
+                      chatModel.send(chatMsg);
+                    },
+                    user: chatModel.me,
+                    messages: chatModel.messages[chatModel.currentID] ?? [],
+                    // default scrollToBottom has bug https://github.com/fayeed/dash_chat/issues/53
+                    scrollToBottom: false,
+                    scrollController: chatModel.scroller,
+                  ),
+                  chatModel.currentID == ChatModel.clientModeID
+                      ? SizedBox.shrink()
+                      : Padding(
+                          padding: EdgeInsets.all(12),
+                          child: Row(
+                            children: [
+                              Icon(Icons.account_circle,
+                                  color: MyTheme.accent80),
+                              SizedBox(width: 5),
+                              Text(
+                                "${currentUser.name ?? ""}   ${currentUser.uid ?? ""}",
+                                style: TextStyle(color: MyTheme.accent50),
+                              ),
+                            ],
+                          )),
+                ],
+              );
+            })));
+  }
+}