[easytag/wip/application-window: 21/98] Launch default audio player for directory

[David King <davidk src gnome org>]

commit 71865be60a9f3c3fed389b1f1930860dd8c131e5
Author: David King <amigadave amigadave com>
Date:   Sat Jul 5 22:29:04 2014 +0100

    Launch default audio player for directory
    
    Use GAppInfo to discover the default player for the content type of the
    first file in the list, and play the files in the directory using that
    player.

 src/misc.c |   55 +++++++++++++++++++++++++++++++++++++++++++++++++------
 1 files changed, 49 insertions(+), 6 deletions(-)
---
diff --git a/src/misc.c b/src/misc.c
index 041eb76..1d03e38 100644
--- a/src/misc.c
+++ b/src/misc.c
@@ -737,22 +737,65 @@ static void Open_File_Selection_Window (GtkWidget *entry, gchar *title, GtkFileC
 
 
 
-void Run_Audio_Player_Using_Directory (void)
+static void
+et_run_audio_player (GList *files)
+{
+    GFileInfo *info;
+    GError *error = NULL;
+    const gchar *content_type;
+    GAppInfo *app_info;
+    GdkAppLaunchContext *context;
+
+    g_return_if_fail (files != NULL);
+
+    info = g_file_query_info (files->data,
+                              G_FILE_ATTRIBUTE_STANDARD_CONTENT_TYPE,
+                              G_FILE_QUERY_INFO_NONE, NULL, &error);
+
+    if (error)
+    {
+        g_warning ("Unable to get content type for file: %s",
+                   error->message);
+        g_error_free (error);
+        return;
+    }
+
+    content_type = g_file_info_get_content_type (info);
+    app_info = g_app_info_get_default_for_type (content_type, FALSE);
+    g_object_unref (info);
+
+    context = gdk_display_get_app_launch_context (gdk_display_get_default ());
+
+    if (!g_app_info_launch (app_info, files, G_APP_LAUNCH_CONTEXT (context),
+                            &error))
+    {
+        Log_Print (LOG_ERROR, _("Failed to launch program: %s"),
+                   error->message);
+        g_error_free (error);
+    }
+
+    g_object_unref (context);
+    g_object_unref (app_info);
+}
+
+void
+Run_Audio_Player_Using_Directory (void)
 {
     GList *l;
-    GList *path_list = NULL;
+    GList *file_list = NULL;
 
     for (l = g_list_first (ETCore->ETFileList); l != NULL; l = g_list_next (l))
     {
         ET_File *etfile = (ET_File *)l->data;
         gchar *path = ((File_Name *)etfile->FileNameCur->data)->value;
-        path_list = g_list_prepend (path_list, path);
+        file_list = g_list_prepend (file_list, g_file_new_for_path (path));
     }
 
-    path_list = g_list_reverse (path_list);
+    file_list = g_list_reverse (file_list);
+
+    et_run_audio_player (file_list);
 
-    et_run_program (AUDIO_FILE_PLAYER, path_list);
-    g_list_free (path_list);
+    g_list_free_full (file_list, g_object_unref);
 }
 
 /*