[evolution] EWebView: Disable WebKit plugins during instance initialization.

[Matthew Barnes <mbarnes src gnome org>]

commit eb6ecc6fb5d1b6859fab949ba20865d2ca784306
Author: Matthew Barnes <mbarnes redhat com>
Date:   Mon Apr 8 21:49:33 2013 -0400

    EWebView: Disable WebKit plugins during instance initialization.
    
    Calling webkit_get_web_plugin_database() somehow ends up calling
    g_bus_get_sync(), which in turn makes gtkdoc-scangobj hang forever.
    
    Call it instead as a GOnce callback during instance initialization,
    which avoids the hang since gtkdoc-scangobj only peeks at classes.

 e-util/e-web-view.c |   17 +++++++++++------
 1 files changed, 11 insertions(+), 6 deletions(-)
---
diff --git a/e-util/e-web-view.c b/e-util/e-web-view.c
index 32c37e0..4f52b95 100644
--- a/e-util/e-web-view.c
+++ b/e-util/e-web-view.c
@@ -101,6 +101,7 @@ enum {
 };
 
 static guint signals[LAST_SIGNAL];
+static GOnce disable_webkit_3rd_party_plugins_once = G_ONCE_INIT;
 
 static const gchar *ui =
 "<ui>"
@@ -1451,8 +1452,8 @@ web_view_drag_motion (GtkWidget *widget,
        return FALSE;
 }
 
-static void
-web_view_disable_webkit_3rd_party_plugins (void)
+static gpointer
+web_view_disable_webkit_3rd_party_plugins (gpointer unused)
 {
        WebKitWebPluginDatabase *database;
        GSList *installed_plugins, *iterator;
@@ -1460,17 +1461,19 @@ web_view_disable_webkit_3rd_party_plugins (void)
        database = webkit_get_web_plugin_database ();
 
        if (!database)
-               return;
+               return NULL;
 
        installed_plugins = webkit_web_plugin_database_get_plugins (database);
 
        if (!installed_plugins)
-               return;
+               return NULL;
 
        for (iterator = installed_plugins; iterator; iterator = iterator->next)
                webkit_web_plugin_set_enabled (iterator->data, FALSE);
 
        webkit_web_plugin_database_plugins_list_free (installed_plugins);
+
+       return NULL;
 }
 
 static void
@@ -1678,8 +1681,6 @@ e_web_view_class_init (EWebViewClass *class)
                e_marshal_BOOLEAN__STRING,
                G_TYPE_BOOLEAN, 1, G_TYPE_STRING);
 
-       web_view_disable_webkit_3rd_party_plugins ();
-
        webkit_set_cache_model (WEBKIT_CACHE_MODEL_DOCUMENT_VIEWER);
        webkit_set_default_web_database_quota (0);
        webkit_application_cache_set_maximum_size (0);
@@ -1714,6 +1715,10 @@ e_web_view_init (EWebView *web_view)
        const gchar *id;
        GError *error = NULL;
 
+       g_once (
+               &disable_webkit_3rd_party_plugins_once,
+               web_view_disable_webkit_3rd_party_plugins, NULL);
+
        web_view->priv = E_WEB_VIEW_GET_PRIVATE (web_view);
 
        g_signal_connect (