Resolves #525 Support Lovelace dashboards

lib/home_assistant.class.dart

@@ -2,6 +2,8 @@ part of 'main.dart';
 
 class HomeAssistant {
 
+  static const DEFAULT_DASHBOARD = 'lovelace';
+
   static final HomeAssistant _instance = HomeAssistant._internal();
 
   factory HomeAssistant() {
@@ -12,6 +14,7 @@ class HomeAssistant {
   HomeAssistantUI ui;
   Map _instanceConfig = {};
   String _userName;
+  String _lovelaceDashbordUrl;
   HSVColor savedColor;
   int savedPlayerPosition;
   String sendToPlayerId;
@@ -25,6 +28,8 @@ class HomeAssistant {
   var _rawUserInfo;
   var _rawPanels;
 
+  set lovelaceDashboardUrl(String val) => _lovelaceDashbordUrl = val;
+
   List<Panel> panels = [];
 
   Duration fetchTimeout = Duration(seconds: 30);
@@ -182,7 +187,12 @@ class HomeAssistant {
       return Future.value();
     } else {
       Completer completer = Completer();
-      ConnectionManager().sendSocketMessage(type: "lovelace/config").then((data) {
+      ConnectionManager().sendSocketMessage(
+        type: 'lovelace/config',
+        additionalData: {
+            'url_path': _lovelaceDashbordUrl == HomeAssistant.DEFAULT_DASHBOARD ? null : _lovelaceDashbordUrl
+          }
+      ).then((data) {
         _rawLovelaceData = data;
         completer.complete();
       }).catchError((e) {
@@ -228,7 +238,6 @@ class HomeAssistant {
   }
 
   Future _getPanels(SharedPreferences sharedPrefs) async {
-    panels.clear();
     if (sharedPrefs != null) {
       try {
         var data = json.decode(sharedPrefs.getString('cached_panels'));
@@ -245,18 +254,35 @@ class HomeAssistant {
 
   void _parsePanels(data) {
     _rawPanels = data;
+    panels.clear();
+    List<Panel> dashboards = [];
     data.forEach((k,v) {
         String title = v['title'] == null ? "${k[0].toUpperCase()}${k.substring(1)}" : "${v['title'][0].toUpperCase()}${v['title'].substring(1)}";
-        panels.add(Panel(
+        if (v['component_name'] != null && v['component_name'] == 'lovelace') {
+          dashboards.add(
+            Panel(
               id: k,
-            type: v["component_name"],
+              componentName: v["component_name"],
+              title: title,
+              urlPath: v["url_path"],
+              config: v["config"],
+              icon: v["icon"] ?? 'mdi:view-dashboard'
+            )  
+          );
+        } else {
+          panels.add(
+            Panel(
+              id: k,
+              componentName: v["component_name"],
               title: title,
               urlPath: v["url_path"],
               config: v["config"],
               icon: v["icon"]
             )
           );
+        }
     });
+    panels.insertAll(0, dashboards);
   }
 
   Future getCameraStream(String entityId) {

lib/pages/main/main.page.dart

@@ -90,13 +90,16 @@ class _MainPageState extends State<MainPage> with WidgetsBindingObserver, Ticker
     );
   }
 
-  void _fullLoad() async {
+  void _fullLoad() {
     _showInfoBottomBar(progress: true,);
     _subscribe().then((_) {
       ConnectionManager().init(loadSettings: true, forceReconnect: true).then((__){
-        _fetchData(true);
+        SharedPreferences.getInstance().then((prefs) {
+          HomeAssistant().lovelaceDashboardUrl = prefs.getString('lovelace_dashboard_url') ?? HomeAssistant.DEFAULT_DASHBOARD;
+          _fetchData(useCache: true);
           LocationManager();
           StartupUserMessagesManager().checkMessagesToShow();
+        });
       }, onError: (e) {
         _setErrorState(e);
       });
@@ -107,13 +110,13 @@ class _MainPageState extends State<MainPage> with WidgetsBindingObserver, Ticker
     _hideBottomBar();
     _showInfoBottomBar(progress: true,);
     ConnectionManager().init(loadSettings: false, forceReconnect: false).then((_){
-      _fetchData(false);
+      _fetchData(useCache: false);
     }, onError: (e) {
       _setErrorState(e);
     });
   }
 
-  _fetchData(bool useCache) async {
+  _fetchData({useCache: false}) async {
     if (useCache) {
       HomeAssistant().fetchDataFromCache().then((_) {
         setState((){});  
@@ -758,7 +761,9 @@ class _MainPageState extends State<MainPage> with WidgetsBindingObserver, Ticker
                           context: context,
                           items: serviceMenuItems
                       ).then((String val) {
+                        HomeAssistant().lovelaceDashboardUrl = HomeAssistant.DEFAULT_DASHBOARD;
                         if (val == "reload") {
+                          
                           _quickLoad();
                         } else if (val == "logout") {
                           HomeAssistant().logout().then((_) {

lib/panels/panel_class.dart

@@ -11,7 +11,7 @@ class Panel {
   };
 
   final String id;
-  final String type;
+  final String componentName;
   final String title;
   final String urlPath;
   final Map config;
@@ -19,34 +19,58 @@ class Panel {
   bool isHidden = true;
   bool isWebView = false;
 
-  Panel({this.id, this.type, this.title, this.urlPath, this.icon, this.config}) {
+  Panel({this.id, this.componentName, this.title, this.urlPath, this.icon, this.config}) {
     if (icon == null || !icon.startsWith("mdi:")) {
-      icon = Panel.iconsByComponent[type];
+      icon = Panel.iconsByComponent[componentName];
     }
-    isHidden = (type == 'lovelace' || type == 'kiosk' || type == 'states' || type == 'profile' || type == 'developer-tools');
+    isHidden = (componentName == 'kiosk' || componentName == 'states' || componentName == 'profile' || componentName == 'developer-tools');
-    isWebView = (type != 'config');
+    isWebView = (componentName != 'config' && componentName != 'lovelace');
   }
 
   void handleOpen(BuildContext context) {
-    if (type == "config") {
+    if (componentName == "config") {
       Navigator.of(context).push(
           MaterialPageRoute(
             builder: (context) => PanelPage(title: "$title", panel: this),
           )
       );
+    } else if (componentName == 'lovelace') {
+      HomeAssistant().lovelaceDashboardUrl = this.urlPath;
+      SharedPreferences.getInstance().then((prefs) {
+        prefs.setString('lovelace_dashboard_url', this.urlPath);
+        eventBus.fire(ReloadUIEvent());
+      });
     } else {
       Launcher.launchAuthenticatedWebView(context: context, url: "${ConnectionManager().httpWebHost}/$urlPath", title: "${this.title}");
     }
   }
 
+  Widget getMenuItemWidget(BuildContext context) {
+    return ListTile(
+        leading: Icon(MaterialDesignIcons.getIconDataFromIconName(this.icon)),
+        title: Row(
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: <Widget>[
+            Text("${this.title}"),
+            Container(width: 4.0,),
+            isWebView ? Text("webview", style: TextStyle(fontSize: 8.0, color: Colors.black45),) : Container(width: 1.0,)
+          ],
+        ),
+        onTap: () {
+          Navigator.of(context).pop();
+          this.handleOpen(context);
+        }
+    );
+  }
+
   Widget getWidget() {
-    switch (type) {
+    switch (componentName) {
       case "config": {
         return ConfigPanelWidget();
       }
 
       default: {
-        return Text("Unsupported panel component: $type");
+        return Text("Unsupported panel component: $componentName");
       }
     }
   }