Initial implementation of auto-start function on Linux.

CMakeLists.txt

@@ -47,12 +47,6 @@ endif(EXISTS "${PROJECT_SOURCE_DIR}/.git")
 
 message(STATUS "[${APP_LOW_NAME}] Revision number obtained: " ${APP_REVISION} ".")
 
-# Configure internal C++ defines.
-configure_file (
-  ${PROJECT_SOURCE_DIR}/src/core/defs.h.in
-  ${CMAKE_CURRENT_BINARY_DIR}/src/core/defs.h
-)
-
 # Configure executable "properties" for Windows.
 if(WIN32)
   message(STATUS "[${APP_LOW_NAME}] Generating executable file properties.")
@@ -69,8 +63,15 @@ if(UNIX)
     ${PROJECT_SOURCE_DIR}/resources/desktop/rssguard.desktop.in
     ${CMAKE_CURRENT_BINARY_DIR}/resources/desktop/rssguard.desktop
   )
+  set(DESKTOP_ENTRY ${CMAKE_INSTALL_PREFIX}/share/applications)
 endif(UNIX)
 
+# Configure internal C++ defines.
+configure_file (
+  ${PROJECT_SOURCE_DIR}/src/core/defs.h.in
+  ${CMAKE_CURRENT_BINARY_DIR}/src/core/defs.h
+)
+
 # Define some useful DEBUG for, ehrm, debug build.
 if(CMAKE_BUILD_TYPE STREQUAL "release" OR CMAKE_BUILD_TYPE STREQUAL "Release" OR CMAKE_BUILD_TYPE STREQUAL "RELEASE")
   message(STATUS "[${APP_LOW_NAME}] A release build (non-debug) is chosen. Debugging outputs are silently ignored.")

src/core/defs.h.in

@@ -25,6 +25,8 @@
 #define APP_IS_RUNNING      "app_is_running"
 
 #if defined(Q_OS_LINUX)
+#define APP_DESKTOP_ENTRY_PATH "@DESKTOP_ENTRY@"
+#define APP_DESKTOP_ENTRY_FILE "@APP_LOW_NAME@.desktop"
 #define APP_LANG_PATH APP_PREFIX + QString("/share/rssguard/l10n")
 #define APP_SKIN_PATH APP_PREFIX + QString("/share/rssguard/skins")
 #define APP_INFO_PATH APP_PREFIX + QString("/share/rssguard/information")

src/core/systemfactory.cpp

@@ -33,26 +33,12 @@ SystemFactory::AutoStartStatus SystemFactory::getAutoStartStatus() {
   // Use proper freedesktop.org way to auto-start the application on Linux.
   // INFO: http://standards.freedesktop.org/autostart-spec/latest/
 #elif defined(Q_OS_LINUX)
-  QString xdg_config_path(qgetenv("XDG_CONFIG_HOME"));
-  QString desktop_file_location;
+  QString desktop_file_location = SystemFactory::getAutostartDesktopFileLocation();
 
-  if (!xdg_config_path.isEmpty()) {
-    // XDG_CONFIG_HOME variable is specified. Look for .desktop file
-    // in 'autostart' subdirectory.
-    desktop_file_location = xdg_config_path + "/autostart/rssguard.desktop";
-  }
-  else {
-    // Desired variable is not set, look for the default 'autostart' subdirectory.
-    QString home_directory(qgetenv("HOME"));
-    if (!home_directory.isEmpty()) {
-      // Home directory exists. Check if target .desktop file exists and
-      // return according status.
-      desktop_file_location = home_directory + "/.config/autostart/rssguard.desktop";
-    }
-    else {
-      qDebug("Searching for auto-start function status failed. HOME variable not found.");
-      return SystemFactory::Unavailable;
-    }
+  // No correct path was found.
+  if (desktop_file_location.isEmpty()) {
+    qDebug("Searching for auto-start function status failed. HOME variable not found.");
+    return SystemFactory::Unavailable;
   }
 
   // We found correct path, now check if file exists and return correct status.
@@ -69,6 +55,29 @@ SystemFactory::AutoStartStatus SystemFactory::getAutoStartStatus() {
 #endif
 }
 
+QString SystemFactory::getAutostartDesktopFileLocation() {
+  QString xdg_config_path(qgetenv("XDG_CONFIG_HOME"));
+  QString desktop_file_location;
+
+  if (!xdg_config_path.isEmpty()) {
+    // XDG_CONFIG_HOME variable is specified. Look for .desktop file
+    // in 'autostart' subdirectory.
+    desktop_file_location = xdg_config_path + "/autostart/" + APP_DESKTOP_ENTRY_FILE;
+  }
+  else {
+    // Desired variable is not set, look for the default 'autostart' subdirectory.
+    QString home_directory(qgetenv("HOME"));
+    if (!home_directory.isEmpty()) {
+      // Home directory exists. Check if target .desktop file exists and
+      // return according status.
+      desktop_file_location = home_directory + "/.config/autostart/" + APP_DESKTOP_ENTRY_FILE;
+    }
+  }
+
+  // No location found, return empty string.
+  return desktop_file_location;
+}
+
 // TODO: Finish implementation of SystemFactory auto-start methods.
 bool SystemFactory::setAutoStartStatus(const AutoStartStatus &new_status) {
   SystemFactory::AutoStartStatus current_status = SystemFactory::getAutoStartStatus();
@@ -93,12 +102,16 @@ bool SystemFactory::setAutoStartStatus(const AutoStartStatus &new_status) {
       return false;
   }
 #elif defined(Q_OS_LINUX)
+  // Note that we expect here that no other program uses
+  // "rssguard.desktop" desktop file.
   switch (new_status) {
     case SystemFactory::Enabled:
-
-      break;
+      QFile::link(QString(APP_DESKTOP_ENTRY_PATH) + "/" + APP_DESKTOP_ENTRY_FILE,
+                  getAutostartDesktopFileLocation());
+      return true;
     case SystemFactory::Disabled:
-      break;
+      QFile::remove(getAutostartDesktopFileLocation());
+      return true;
     default:
       return false;
   }

src/core/systemfactory.h

@@ -20,6 +20,10 @@ class SystemFactory {
     // Function returns false if setting of
     // new status failed.
     static bool setAutoStartStatus(const SystemFactory::AutoStartStatus &new_status);
+
+    // Returns standard location where auto-start .desktop files
+    // should be placed.
+    static QString getAutostartDesktopFileLocation();
 };
 
 #endif // SYSTEMFACTORY_H