Add freedesktop.org mimeinfo for OpenMW save game files

This allows us to launch OpenMW when the user opens a save game file through the file manager.

CMakeLists.txt

@@ -386,6 +386,8 @@ configure_file(${OpenMW_SOURCE_DIR}/files/opencs/defaultfilters
 if (NOT WIN32 AND NOT APPLE)
     configure_file(${OpenMW_SOURCE_DIR}/files/openmw.desktop
         "${OpenMW_BINARY_DIR}/openmw.desktop")
+    configure_file(${OpenMW_SOURCE_DIR}/files/openmw-mimeinfo.xml
+        "${OpenMW_BINARY_DIR}/openmw-mimeinfo.xml")
     configure_file(${OpenMW_SOURCE_DIR}/files/opencs.desktop
         "${OpenMW_BINARY_DIR}/opencs.desktop")
 endif()
@@ -451,6 +453,7 @@ IF(NOT WIN32 AND NOT APPLE)
 
     # Install icon and desktop file
     INSTALL(FILES "${OpenMW_BINARY_DIR}/openmw.desktop" DESTINATION "${DATAROOTDIR}/applications" PERMISSIONS OWNER_READ OWNER_WRITE GROUP_READ WORLD_READ COMPONENT "openmw")
+    INSTALL(FILES "${OpenMW_BINARY_DIR}/openmw-mimeinfo.xml" DESTINATION "${DATAROOTDIR}/mime/packages" PERMISSIONS OWNER_READ OWNER_WRITE GROUP_READ WORLD_READ COMPONENT "openmw")
     INSTALL(FILES "${OpenMW_SOURCE_DIR}/files/launcher/images/openmw.png" DESTINATION "${ICONDIR}" PERMISSIONS OWNER_READ OWNER_WRITE GROUP_READ WORLD_READ COMPONENT "openmw")
     IF(BUILD_OPENCS)
         INSTALL(FILES "${OpenMW_BINARY_DIR}/opencs.desktop" DESTINATION "${DATAROOTDIR}/applications" PERMISSIONS OWNER_READ OWNER_WRITE GROUP_READ WORLD_READ COMPONENT "opencs")

files/openmw-mimeinfo.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0"?>
+<mime-info xmlns='http://www.freedesktop.org/standards/shared-mime-info'>
+
+  <mime-type type="application/x-openmw-savegame">
+    <icon name="openmw" />
+    <generic-icon name="applications-games"/>
+    <comment>OpenMW Savegame</comment>
+    <glob weight="60" pattern="*.omwsave"/>
+  </mime-type>
+
+</mime-info>

files/openmw.desktop

@@ -8,3 +8,16 @@ TryExec=omwlauncher
 Exec=omwlauncher
 Icon=openmw
 Categories=Game;RolePlaying;
+
+[Desktop Entry]
+Type=Application
+Name=OpenMW
+GenericName=Role Playing Game
+Comment=An engine replacement for The Elder Scrolls III: Morrowind
+Keywords=Morrowind;Reimplementation Mods;esm;bsa;
+Exec=openmw --load-savegame=%f
+Icon=openmw
+Categories=Game;RolePlaying;
+Terminal=false
+NoDisplay=true
+MimeType=application/x-openmw-savegame;