[tracker] Use minimal in Nemo for QGuiApplication for in case the compositor isn't running yet. Use QGuiApplic

[Philip Van Hoof <pvanhoof src gnome org>]

commit 934eb10ffaddaaf127a09abd76da694305fbec31
Author: Philip Van Hoof <philip codeminded be>
Date:   Mon Dec 23 19:16:41 2013 +0100

    Use minimal in Nemo for QGuiApplication for in case the compositor isn't running yet. Use QGuiApplication 
instead of QCoreApplication

 configure.ac                                 |   17 +++++++++++++++++
 src/tracker-extract/tracker-media-art-qt.cpp |   19 ++++++++++++++-----
 2 files changed, 31 insertions(+), 5 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 2e4c1dc..d733ae1 100644
--- a/configure.ac
+++ b/configure.ac
@@ -624,6 +624,22 @@ if test "x$enable_maemo" = "xyes" ; then
 fi
 
 ####################################################################
+# Check if we should install nemo specific features
+####################################################################
+
+AC_ARG_ENABLE(nemo,
+              AS_HELP_STRING([--enable-nemo],
+                             [enable nemo specific [[default=no]]]),
+             [enable_nemo="$enableval"],
+             [enable_nemo=no])
+
+AM_CONDITIONAL(HAVE_NEMO, test "x$enable_nemo" = "xyes")
+
+if test "x$enable_nemo" = "xyes" ; then
+   AC_DEFINE(HAVE_NEMO, 1, [Define if we enable Nemo specific features])
+fi
+
+####################################################################
 # Check if we should disable the journal
 ####################################################################
 
@@ -2674,6 +2690,7 @@ Writeback:
 Frameworks / Options:
 
        Support Maemo                           $enable_maemo
+       Support Nemo                            $enable_nemo
        Support libmeegotouch                   $have_meegotouch
        Support Guaranteed Metadata             $enable_guarantee_metadata (e.g. guess nie:title from files)
 
diff --git a/src/tracker-extract/tracker-media-art-qt.cpp b/src/tracker-extract/tracker-media-art-qt.cpp
index 9b110c0..ab220c4 100644
--- a/src/tracker-extract/tracker-media-art-qt.cpp
+++ b/src/tracker-extract/tracker-media-art-qt.cpp
@@ -29,7 +29,7 @@
 #include <QImageReader>
 #include <QImageWriter>
 #ifdef HAVE_QT5
-#include <QCoreApplication>
+#include <QGuiApplication>
 #else
 #include <QApplication>
 #endif
@@ -38,12 +38,16 @@
 
 #include <glib.h>
 
+#ifdef HAVE_NEMO
+#include <stdlib.h>
+#endif
+
 #include "tracker-media-art-generic.h"
 
 G_BEGIN_DECLS
 
 #ifdef HAVE_QT5
-static QCoreApplication *app = NULL;
+static QGuiApplication *app = NULL;
 #else
 static QApplication *app = NULL
 #endif
@@ -51,11 +55,16 @@ static QApplication *app = NULL
 void
 tracker_media_art_plugin_init (void)
 {
-       int argc = 0;
-       char *argv[2] = { NULL, NULL };
+       int argc = 1;
+       char *argv[2] = { (char*) "tracker-extract", NULL };
 
 #ifdef HAVE_QT5
-       app = new QCoreApplication (argc, argv);
+
+#ifdef HAVE_NEMO
+       setenv("QT_QPA_PLATFORM", "minimal", 1);
+#endif
+
+       app = new QGuiApplication (argc, argv);
 #else
        app = new QApplication (argc, argv, QApplication::Tty);
 #endif