added PageSettingsAbout, PageSettingsApplication, PageSettingsBackup, PageSettingsConnection, PageSettingsDns

- added SettingsController

client/utilities.cpp

@@ -1,5 +1,6 @@
 #include <QCoreApplication>
 #include <QDebug>
+#include <QDesktopServices>
 #include <QDir>
 #include <QHostAddress>
 #include <QHostInfo>
@@ -7,6 +8,7 @@
 #include <QRandomGenerator>
 #include <QRegularExpression>
 #include <QStandardPaths>
+#include <QUrl>
 
 #include "defines.h"
 #include "utilities.h"
@@ -247,6 +249,58 @@ QString Utils::certUtilPath()
 #endif
 }
 
+void Utils::saveFile(const QString &fileExtension,
+                     const QString &caption,
+                     const QString &fileName,
+                     const QString &data)
+{
+    QString docDir = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);
+    QUrl fileUrl = QFileDialog::getSaveFileUrl(nullptr,
+                                               caption,
+                                               QUrl::fromLocalFile(docDir + "/" + fileName),
+                                               "*" + fileExtension);
+    if (fileUrl.isEmpty())
+        return;
+    if (!fileUrl.toString().endsWith(fileExtension)) {
+        fileUrl = QUrl(fileUrl.toString() + fileExtension);
+    }
+    if (fileUrl.isEmpty())
+        return;
+
+    QFile save(fileUrl.toLocalFile());
+
+    //todo check if save successful
+    save.open(QIODevice::WriteOnly);
+    save.write(data.toUtf8());
+    save.close();
+
+    QFileInfo fi(fileUrl.toLocalFile());
+    QDesktopServices::openUrl(fi.absoluteDir().absolutePath());
+}
+
+QString Utils::getFileName(QWidget *parent,
+                           const QString &caption,
+                           const QString &dir,
+                           const QString &filter,
+                           QString *selectedFilter,
+                           QFileDialog::Options options)
+{
+    QString fileName
+        = QFileDialog::getOpenFileName(parent, caption, dir, filter, selectedFilter, options);
+
+#ifdef Q_OS_ANDROID
+    // patch for files containing spaces etc
+    const QString sep{"raw%3A%2F"};
+    if (fileName.startsWith("content://") && fileName.contains(sep)) {
+        QString contentUrl = fileName.split(sep).at(0);
+        QString rawUrl = fileName.split(sep).at(1);
+        rawUrl.replace(" ", "%20");
+        fileName = contentUrl + sep + rawUrl;
+    }
+#endif
+    return fileName;
+}
+
 #ifdef Q_OS_WIN
 // Inspired from http://stackoverflow.com/a/15281070/1529139
 // and http://stackoverflow.com/q/40059902/1529139