From 9b23c98f59a9a5f05d2733dc5ffc51bf95436ec5 Mon Sep 17 00:00:00 2001
From: janbar <jlbarriere68@gmail.com>
Date: Wed, 18 Oct 2023 01:06:57 +0200
Subject: [PATCH] try to fix issue #60

---
 CMakeLists.txt         | 14 ++++++++++--
 src/platformextras.cpp | 51 ++++++++++++++++++++++++++++++++++--------
 src/platformextras.h   |  4 ++++
 3 files changed, 58 insertions(+), 11 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index e9f36d16..c153b1b3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -7,7 +7,7 @@ option(INSTALL_TESTS "Install the tests on make install" OFF)
 option(BUILD_DEVICE_MOBILE "Enable behaviors for mobile devices" OFF)
 
 set(APP_VERSION       "1.10.4")
-set(APP_VERSION_CODE  59)
+set(APP_VERSION_CODE  60)
 set(APP_ID            "io.github.janbar.osmin")
 set(APP_NAME          "osmin")
 
@@ -110,7 +110,11 @@ find_package(Qt5QuickControls2 ${QT_MIN_VERSION} REQUIRED)
 
 if(ANDROID)
     find_package(Qt5AndroidExtras REQUIRED)
+elseif(UNIX AND NOT APPLE)
+    find_library(DBUS_LIBRARIES dbus-1 REQUIRED)
+    find_package(Qt5DBus REQUIRED)
 endif()
+
 find_package(Qt5Widgets REQUIRED)
 find_package(Qt5Xml REQUIRED)
 find_package(Qt5Svg REQUIRED)
@@ -199,12 +203,18 @@ if(ANDROID)
     add_definitions(-frtti) # dynamic_cast: https://github.com/android/ndk/issues/519
     target_link_libraries(osmin Qt5::QuickControls2 Qt5::AndroidExtras android log Qt5::RemoteObjects Qt5::Positioning
                           Qt5::Qml Qt5::Quick Qt5::Widgets Qt5::Gui Qt5::Xml Qt5::Svg Qt5::Network Qt5::Sensors Qt5::Multimedia Qt5::Core)
-else()
+elseif(APPLE)
     if(BUILD_DEVICE_MOBILE)
         add_definitions(-DDEVICE_MOBILE)
     endif()
     target_link_libraries(osmin Qt5::QuickControls2 Qt5::RemoteObjects Qt5::Positioning
                           Qt5::Qml Qt5::Quick Qt5::Widgets Qt5::Gui Qt5::Xml Qt5::Svg Qt5::Network Qt5::Sensors Qt5::Multimedia Qt5::Core)
+elseif(UNIX)
+  if(BUILD_DEVICE_MOBILE)
+      add_definitions(-DDEVICE_MOBILE)
+  endif()
+  target_link_libraries(osmin Qt5::QuickControls2 Qt5::DBus Qt5::RemoteObjects Qt5::Positioning
+                        Qt5::Qml Qt5::Quick Qt5::Widgets Qt5::Gui Qt5::Xml Qt5::Svg Qt5::Network Qt5::Sensors Qt5::Multimedia Qt5::Core)
 endif()
 
 if(ANDROID)
diff --git a/src/platformextras.cpp b/src/platformextras.cpp
index 98171361..b2acf6fa 100644
--- a/src/platformextras.cpp
+++ b/src/platformextras.cpp
@@ -20,24 +20,29 @@
 #include <QDir>
 #include <QStandardPaths>
 #include <QStorageInfo>
-#ifdef Q_OS_ANDROID
-#include <QtAndroid>
-#include <QAndroidJniEnvironment>
-#endif
 
-#ifdef SAILFISHOS
+#if defined(SAILFISHOS)
 #define AUTO_MOUNT        "/run/media/"
-#else
-#ifdef Q_OS_ANDROID
+
+#elif defined(Q_OS_ANDROID)
+#include <QtAndroid>
+#include <QAndroidJniEnvironment>
 #define AUTO_MOUNT        "/storage/"
+
+#elif defined(Q_OS_LINUX)
+#include <QtDBus>
+#define AUTO_MOUNT        "/media/"
+
 #else
 #define AUTO_MOUNT        "/media/"
 #endif
-#endif
 
 PlatformExtras::PlatformExtras(QObject* parent)
 : QObject(parent)
 , m_preventBlanking(false)
+#ifdef Q_OS_LINUX
+, m_cookie(0)
+#endif
 {
 }
 
@@ -96,9 +101,11 @@ QStringList PlatformExtras::getStorageDirs()
 
 void PlatformExtras::setPreventBlanking(bool on)
 {
+  if (m_preventBlanking == on)
+    return;
   m_preventBlanking = on;
 
-#ifdef Q_OS_ANDROID
+#if defined(Q_OS_ANDROID)
   {
     QtAndroid::runOnAndroidThread([on]
     {
@@ -110,5 +117,31 @@ void PlatformExtras::setPreventBlanking(bool on)
         window.callMethod<void>("clearFlags", "(I)V", FLAG_KEEP_SCREEN_ON);
     });
   }
+
+#elif defined(Q_OS_LINUX)
+  QDBusConnection bus = QDBusConnection::sessionBus();
+  if(bus.isConnected())
+  {
+    QDBusInterface interface("org.freedesktop.ScreenSaver", "/org/freedesktop/ScreenSaver",
+                             "org.freedesktop.ScreenSaver", bus);
+    if (interface.isValid())
+    {
+      if(on)
+      {
+        QDBusReply<uint> reply = interface.call("Inhibit", "osmin", "navigation enabled");
+        if (reply.isValid())
+          m_cookie = reply.value();
+        else
+        {
+          QDBusError error = reply.error();
+          qWarning("%s: %s", error.name().toUtf8().constData(), error.message().toUtf8().constData());
+        }
+      }
+      else
+      {
+        interface.call("UnInhibit", m_cookie);
+      }
+    }
+  }
 #endif
 }
diff --git a/src/platformextras.h b/src/platformextras.h
index a6bd16dc..22554fb8 100644
--- a/src/platformextras.h
+++ b/src/platformextras.h
@@ -52,6 +52,10 @@ class PlatformExtras : public QObject
   void setPreventBlanking(bool on);
 
   bool m_preventBlanking;
+
+#ifdef Q_OS_LINUX
+  uint m_cookie;
+#endif
 };
 
 #endif // PLATFORM_EXTRAS_H