QuickConnect: init

This adds a page in the settings page that allows the user to enter a
quick connect code to allow another device to log in.

core/include/JellyfinQt/apiclient.h

@@ -209,6 +209,14 @@ signals:
 
     void supportedCommandsChanged();
     void onlineChanged();
+    /**
+     * @brief Emitted after submitQuickConnectCode succeeded
+     */
+    void quickConnectAccepted();
+    /**
+     * @brief Emitted after submitQuickConnectCode failed
+     */
+    void quickConnectRejected();
 
     /**
      * @brief onUserDataChanged Emitted when the user data of an item is changed on the server.
@@ -233,6 +241,7 @@ public slots:
      */
     void setupConnection();
     void authenticate(QString username, QString password, bool storeCredentials = false);
+    void submitQuickConnectCode(const QString &code);
 
     /**
      * @brief Logs the user out and clears the session.

core/include/JellyfinQt/support/loader.h

@@ -256,6 +256,27 @@ public:
     }
 };
 
+// Specialisation for endpoints that return "true" or "false" as response.
+template<typename P>
+class HttpLoaderBase<bool, P> : public Loader<bool, P> {
+public:
+    explicit HttpLoaderBase(Jellyfin::ApiClient *apiClient)
+        : Loader<bool, P> (apiClient) {}
+
+    typename Loader<bool, P>::ResultType parseResponse(int statusCode, QByteArray response) {
+        QString text = QString::fromUtf8(response);
+
+        if (text == QStringLiteral("true")) {
+            return true;
+        } else if (text == QStringLiteral("false")) {
+            return false;
+        } else {
+            this->stopWithError(QStringLiteral("Could not parse boolean response: %1").arg(text));
+            return std::nullopt;
+        }
+    }
+};
+
 
 /**
  * Implementation of Loader that loads Items over HTTP