Start to build Forez main route

lib/forez/main_forez_dev.dart

@@ -34,7 +34,7 @@ void main() {
     appName: "#Forez",
     appQuickDescription: tr("Events organisation in Forez plain"),
     toursEntriesBuilder: buildTour,
-    mainRouteBuilder: (c) => ForezRoute(),
+    mainRouteBuilder: (c, k) => ForezRoute(key: k),
   ));
 
   HttpOverrides.global = new MyHttpOverride();

lib/forez/ui/routes/forez_route.dart

@@ -2,6 +2,10 @@ import 'package:comunic/models/conversation.dart';
 import 'package:comunic/ui/dialogs/alert_dialog.dart';
 import 'package:comunic/ui/routes/main_route/main_route.dart';
 import 'package:comunic/ui/routes/main_route/page_info.dart';
+import 'package:comunic/ui/screens/conversations_list_screen.dart';
+import 'package:comunic/ui/widgets/safe_state.dart';
+import 'package:comunic/ui/widgets/status_widget.dart';
+import 'package:comunic/ui/widgets/tab_transition_widget.dart';
 import 'package:comunic/utils/intl_utils.dart';
 import 'package:flutter/material.dart';
 
@@ -24,9 +28,8 @@ class _MainRouteState extends MainController {
 
   @override
   Widget build(BuildContext context) {
-    return Container(
+    return StatusWidget(
-      color: Colors.blueAccent,
+      child: (c) => SafeArea(
-      child: SafeArea(
         // Avoid OS areas
         child: WillPopScope(
           onWillPop: willPop,
@@ -52,14 +55,112 @@ class _MainRouteState extends MainController {
   }
 }
 
+enum _PopupMenuItems { ACTION_SETTINGS, ACTION_SIGN_OUT }
+
 class ForezRouteBody extends StatefulWidget {
   @override
   _ForezRouteBodyState createState() => _ForezRouteBodyState();
 }
 
-class _ForezRouteBodyState extends State<ForezRouteBody> {
+class _ForezRouteBodyState extends SafeState<ForezRouteBody> {
+  @override
+  void initState() {
+    super.initState();
+  }
+
   @override
   Widget build(BuildContext context) {
-    return Text("yolo");
+    return DefaultTabController(
+      length: _tabs.length,
+      child: Scaffold(
+        appBar: AppBar(
+          title: Text("#Forez"),
+          actions: <Widget>[_buildPopupMenuButton()],
+          bottom: TabBar(tabs: _tabs),
+        ),
+        body: TabBarView(children: _tabsPages),
+      ),
+    );
   }
+
+  Widget _buildPopupMenuButton() => PopupMenuButton<_PopupMenuItems>(
+        itemBuilder: (c) => [
+          PopupMenuItem(
+            child: Text(tr("Settings")),
+            value: _PopupMenuItems.ACTION_SETTINGS,
+          ),
+          PopupMenuItem(
+            child: Text(tr("Sign out")),
+            value: _PopupMenuItems.ACTION_SIGN_OUT,
+          ),
+        ],
+        onSelected: _onMenuSelection,
+      );
+
+  void _onMenuSelection(_PopupMenuItems value) {
+    switch (value) {
+      case _PopupMenuItems.ACTION_SETTINGS:
+        MainController.of(context).openSettings();
+        break;
+      case _PopupMenuItems.ACTION_SIGN_OUT:
+        // TODO : handle logout
+        break;
+    }
+  }
+
+  final _list = <_Tab>[
+    // Presence tab
+    _Tab(
+      icon: Icons.calendar_today,
+      title: tr("Presence"),
+      widget: Text("Presence"),
+    ),
+
+    // Conversations tab
+    _Tab(
+      icon: Icons.question_answer,
+      title: tr("Conversations"),
+      widget: ConversationsListScreen(),
+      isUnread: (c) => StatusWidgetState.of(c).unreadConversations > 0,
+    ),
+
+    // Directory tab
+    _Tab(
+      icon: Icons.import_contacts,
+      title: tr("Directory"),
+      widget: Text("Directory"),
+    ),
+  ];
+
+  List<Tab> get _tabs => _list
+      .map((e) => Tab(
+          icon: Stack(
+            children: <Widget>[
+              Icon(e.icon),
+              e.isUnread?.call(context) ?? false
+                  ? Container(color: Colors.red, width: 10, height: 10)
+                  : Container(width: 0)
+            ],
+          ),
+          text: e.title))
+      .toList();
+
+  List<Widget> get _tabsPages =>
+      _list.map((e) => TabTransitionWidget(e.widget)).toList();
+}
+
+class _Tab {
+  final IconData icon;
+  final String title;
+  final Widget widget;
+  final bool Function(BuildContext) isUnread;
+
+  const _Tab({
+    @required this.icon,
+    @required this.title,
+    @required this.widget,
+    this.isUnread,
+  })  : assert(icon != null),
+        assert(title != null),
+        assert(widget != null);
 }

lib/models/config.dart

@@ -28,7 +28,7 @@ class Config {
   final TourEntriesBuilder toursEntriesBuilder;
 
   // Custom main application route
-  final Widget Function(BuildContext) mainRouteBuilder;
+  final Widget Function(BuildContext, GlobalKey) mainRouteBuilder;
 
   const Config({
     @required this.apiServerName,

lib/ui/widgets/init_widget.dart

@@ -108,7 +108,7 @@ class _InitializeWidgetState extends SafeState<InitializeWidget> {
     if (_error || !WebSocketHelper.isConnected()) return _buildNonReadyWidget();
 
     if (config().mainRouteBuilder != null)
-      return config().mainRouteBuilder(context);
+      return config().mainRouteBuilder(context, mainControllerKey);
 
     return isTablet(context)
         ? TabletRoute(key: mainControllerKey)

lib/ui/widgets/status_widget.dart

@@ -0,0 +1,62 @@
+import 'package:comunic/helpers/events_helper.dart';
+import 'package:comunic/helpers/notifications_helper.dart';
+import 'package:comunic/ui/widgets/safe_state.dart';
+import 'package:comunic/utils/log_utils.dart';
+import 'package:flutter/material.dart';
+
+/// Status widget
+///
+/// Store for its children information about the number of unread conversations
+/// & the number of unread conversations
+///
+/// @author Pierre Hubert
+
+class StatusWidget extends StatefulWidget {
+  final Widget Function(BuildContext) child;
+
+  const StatusWidget({
+    Key key,
+    @required this.child,
+  })  : assert(child != null),
+        super(key: key);
+
+  @override
+  StatusWidgetState createState() => StatusWidgetState();
+}
+
+class StatusWidgetState extends SafeState<StatusWidget> {
+  int unreadNotifications = 0;
+  int unreadConversations = 0;
+
+  Future<void> init() async {
+    try {
+      final res = await NotificationsHelper().countUnread();
+      unreadNotifications = res.notifications;
+      unreadConversations = res.conversations;
+
+      setState(() {});
+    } catch (e, s) {
+      logError(e, s);
+      print("Failed to initialize StatusWidget!");
+    }
+  }
+
+  @override
+  void initState() {
+    init();
+    super.initState();
+
+    listenChangeState<NewNumberNotifsEvent>(
+        (e) => unreadNotifications = e.newNum);
+
+    listenChangeState<NewNumberUnreadConversations>(
+        (e) => unreadConversations = e.newNum);
+  }
+
+  /// Find an ancestor of this object
+  static StatusWidgetState of(BuildContext c) =>
+      c.findAncestorStateOfType<StatusWidgetState>();
+
+  @override
+  Widget build(BuildContext context) => widget.child(context);
+}

lib/ui/widgets/tab_transition_widget.dart

@@ -0,0 +1,32 @@
+import 'package:flutter/material.dart';
+
+class TabTransitionWidget extends StatefulWidget {
+  final Widget child;
+
+  const TabTransitionWidget(this.child, {Key key})
+      : assert(child != null),
+        super(key: key);
+
+  @override
+  _TabTransitionWidgetState createState() => _TabTransitionWidgetState();
+}
+
+class _TabTransitionWidgetState extends State<TabTransitionWidget> {
+  var _show = false;
+
+  @override
+  void initState() {
+    super.initState();
+    Future.delayed(Duration(microseconds: 10)).then((value) {
+      if (mounted) setState(() => _show = true);
+    });
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    if (!_show)
+      return Center(child: CircularProgressIndicator());
+    else
+      return widget.child;
+  }
+}