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pitiviformatter: Implement can_load_uri vmethod

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This commit is contained in:
Thibault Saunier 2012-09-23 02:07:04 +02:00
parent f0e9691c96
commit fbefd6dae3
1 changed files with 28 additions and 0 deletions
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28
ges/ges-pitivi-formatter.c
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@ -52,6 +52,7 @@ static gboolean load_pitivi_file_from_uri (GESFormatter * self,
static void ges_pitivi_formatter_finalize (GObject * object);
static gboolean pitivi_formatter_update_source_uri (GESFormatter * formatter,
GESTimelineFileSource * tfs, gchar * new_uri);
static gboolean pitivi_can_load_uri (const gchar * uri, GError ** error);
typedef struct SrcMapping
{
@ -116,6 +117,32 @@ list_table_destroyer (gpointer key, gpointer value, void *unused)
g_list_free (value);
}
static gboolean
pitivi_can_load_uri (const gchar * uri, GError ** error)
{
xmlDocPtr doc;
gboolean ret = TRUE;
xmlXPathObjectPtr xpathObj;
xmlXPathContextPtr xpathCtx;
if (!(doc = xmlParseFile (uri))) {
GST_ERROR ("The xptv file for uri %s was badly formed or did not exist",
uri);
return FALSE;
}
xpathCtx = xmlXPathNewContext (doc);
xpathObj = xmlXPathEvalExpression ((const xmlChar *) "/pitivi", xpathCtx);
if (!xpathObj || !xpathObj->nodesetval || xpathObj->nodesetval->nodeNr == 0)
ret = FALSE;
xmlFreeDoc (doc);
xmlXPathFreeObject (xpathObj);
xmlXPathFreeContext (xpathCtx);
return ret;
}
/* Object functions */
static void
ges_pitivi_formatter_class_init (GESPitiviFormatterClass * klass)
@ -130,6 +157,7 @@ ges_pitivi_formatter_class_init (GESPitiviFormatterClass * klass)
formatter_klass = GES_FORMATTER_CLASS (klass);
g_type_class_add_private (klass, sizeof (GESPitiviFormatterPrivate));
formatter_klass->can_load_uri = pitivi_can_load_uri;
formatter_klass->save_to_uri = save_pitivi_timeline_to_uri;
formatter_klass->load_from_uri = load_pitivi_file_from_uri;
formatter_klass->update_source_uri = pitivi_formatter_update_source_uri;