Add separate about command for about

WE2-713

Signed-off-by: Raul Metsma <[email protected]>

install/web-eid.desktop

@@ -1,7 +1,7 @@
 [Desktop Entry]
 Type=Application
 
-Exec=web-eid %F
+Exec=web-eid --about
 Icon=web-eid
 
 Name=Web eID

src/controller/application.cpp

@@ -118,6 +118,8 @@ CommandWithArgumentsPtr Application::parseArgs()
     QCommandLineOption parentWindow(QStringLiteral("parent-window"),
                                     QStringLiteral("Parent window handle (unused)"),
                                     QStringLiteral("parent-window"));
+    QCommandLineOption aboutArgument(QStringLiteral("about"),
+                                     QStringLiteral("Show Web-eID about Window"));
     QCommandLineParser parser;
     parser.setApplicationDescription(QStringLiteral(
         "Application that communicates with the Web eID browser extension via standard input and "
@@ -128,6 +130,7 @@ CommandWithArgumentsPtr Application::parseArgs()
     parser.addOptions({{{"c", "command-line-mode"},
                         "Command-line mode, read commands from command line arguments instead of "
                         "standard input."},
+                       aboutArgument,
                        parentWindow});
 
     static const auto COMMANDS = "'" + CMDLINE_GET_SIGNING_CERTIFICATE + "', '"
@@ -161,9 +164,14 @@ CommandWithArgumentsPtr Application::parseArgs()
         // https://bugs.chromium.org/p/chromium/issues/detail?id=354597#c2
         qDebug() << "Parent window handle is unused" << parser.value(parentWindow);
     }
+    if (parser.isSet(aboutArgument)) {
+        return std::make_unique<CommandWithArguments>(CommandType::ABOUT, QVariantMap());
+    }
+#ifndef Q_OS_LINUX
     if (arguments().size() == 1) {
         return std::make_unique<CommandWithArguments>(CommandType::ABOUT, QVariantMap());
     }
+#endif
     return nullptr;
 }