Don't show Active Sessions button when not authenticated

Also, expose authorizationState as TDLibWrapper property.

qml/pages/AboutPage.qml

@@ -18,6 +18,7 @@
 */
 import QtQuick 2.6
 import Sailfish.Silica 1.0
+import WerkWolf.Fernschreiber 1.0
 import "../components"
 import "../js/twemoji.js" as Emoji
 
@@ -25,8 +26,7 @@ Page {
     id: aboutPage
     allowedOrientations: Orientation.All
 
-    property bool isLoggedIn : false
+    readonly property var userInformation : tdLibWrapper.userInformation
-    property var userInformation : tdLibWrapper.getUserInformation();
 
     SilicaFlickable {
         id: aboutContainer
@@ -158,7 +158,7 @@ Page {
 
             Loader {
                 id: userInformationLoader
-                active: isLoggedIn
+                active: tdLibWrapper.authorizationState === TelegramAPI.AuthorizationReady
                 width: parent.width
                 sourceComponent: Component {
                     Column {
@@ -227,9 +227,6 @@ Page {
                                 }
                             }
                         }
-                    }
-                }
-            }
 
                         Button {
                             id: activeSessionsButton
@@ -241,6 +238,9 @@ Page {
                                 pageStack.push(Qt.resolvedUrl("ActiveSessionsPage.qml"));
                             }
                         }
+                    }
+                }
+            }
 
             Button {
                 text: qsTr("Terms of Service")

qml/pages/CoverPage.qml

@@ -28,7 +28,7 @@ CoverBackground {
 
     property int unreadMessages: 0
     property int unreadChats: 0
-    property bool authenticated: false
+    readonly property bool authenticated: tdLibWrapper.authorizationState === TelegramAPI.AuthorizationReady
     property int connectionState: TelegramAPI.WaitingForNetwork
 
     function setUnreadInfoText() {
@@ -56,7 +56,6 @@ CoverBackground {
     }
 
     Component.onCompleted: {
-        coverPage.authenticated = (tdLibWrapper.getAuthorizationState() === TelegramAPI.AuthorizationReady);
         coverPage.connectionState = tdLibWrapper.getConnectionState();
         coverPage.unreadMessages = tdLibWrapper.getUnreadMessageInformation().unread_count || 0;
         coverPage.unreadChats = tdLibWrapper.getUnreadChatInformation().unread_count || 0;
@@ -74,7 +73,6 @@ CoverBackground {
             setUnreadInfoText();
         }
         onAuthorizationStateChanged: {
-            coverPage.authenticated = (authorizationState === TelegramAPI.AuthorizationReady);
             setUnreadInfoText();
         }
         onConnectionStateChanged: {

qml/pages/InitializationPage.qml

@@ -26,15 +26,13 @@ Page {
     backNavigation: false
 
     property bool loading: true
-    property int authorizationState: TelegramAPI.Closed
     property var authorizationStateData: null
 
     Component.onCompleted: {
-        initializationPage.authorizationState = tdLibWrapper.getAuthorizationState();
         initializationPage.authorizationStateData = tdLibWrapper.getAuthorizationStateData();
         initializationPage.loading = false;
 
-        switch (authorizationState) {
+        switch (tdLibWrapper.authorizationState) {
         case TelegramAPI.WaitCode:
             initializationPage.loading = false;
             welcomeColumn.visible = false;
@@ -66,7 +64,7 @@ Page {
     Connections {
         target: tdLibWrapper
         onAuthorizationStateChanged: {
-            switch (authorizationState) {
+            switch (tdLibWrapper.authorizationState) {
             case TelegramAPI.WaitCode:
                 initializationPage.loading = false;
                 enterPinColumn.visible = true;

qml/pages/OverviewPage.qml

@@ -32,7 +32,6 @@ Page {
     property bool initializationCompleted: false;
     property bool loading: true;
     property bool logoutLoading: false;
-    property int authorizationState: TelegramAPI.Closed
     property int connectionState: TelegramAPI.WaitingForNetwork
     property int ownUserId;
     property bool chatListCreated: false;
@@ -146,14 +145,13 @@ Page {
     }
 
     function initializePage() {
-        overviewPage.authorizationState = tdLibWrapper.getAuthorizationState();
         overviewPage.handleAuthorizationState(true);
         overviewPage.connectionState = tdLibWrapper.getConnectionState();
         overviewPage.setPageStatus();
     }
 
     function handleAuthorizationState(isOnInitialization) {
-        switch (overviewPage.authorizationState) {
+        switch (tdLibWrapper.authorizationState) {
         case TelegramAPI.WaitPhoneNumber:
         case TelegramAPI.WaitCode:
         case TelegramAPI.WaitPassword:
@@ -204,8 +202,7 @@ Page {
     Connections {
         target: tdLibWrapper
         onAuthorizationStateChanged: {
-            overviewPage.authorizationState = authorizationState;
+            handleAuthorizationState(false);
-            handleAuthorizationState();
         }
         onConnectionStateChanged: {
             overviewPage.connectionState = connectionState;
@@ -278,7 +275,7 @@ Page {
             }
             MenuItem {
                 text: qsTr("About Fernschreiber")
-                onClicked: pageStack.push(Qt.resolvedUrl("../pages/AboutPage.qml"), {isLoggedIn : (overviewPage.authorizationState == TelegramAPI.AuthorizationReady)})
+                onClicked: pageStack.push(Qt.resolvedUrl("../pages/AboutPage.qml"))
             }
             MenuItem {
                 text: qsTr("Settings")

src/tdlibwrapper.h

@@ -31,6 +31,9 @@
 class TDLibWrapper : public QObject
 {
     Q_OBJECT
+    Q_PROPERTY(AuthorizationState authorizationState READ getAuthorizationState NOTIFY authorizationStateChanged)
+    Q_PROPERTY(QVariantMap userInformation READ getUserInformation NOTIFY ownUserUpdated)
+
 public:
     explicit TDLibWrapper(AppSettings *appSettings, MceInterface *mceInterface, QObject *parent = nullptr);
     ~TDLibWrapper();