static void
mex_grilo_program_set_metadata (MexContent *content,
MexContentMetadata key,
const gchar *value)
{
MexContentIface *iface, *parent_iface;
iface = MEX_CONTENT_GET_IFACE (content);
parent_iface = g_type_interface_peek_parent (iface);
parent_iface->set_metadata (content, key, value);
}
/**
* mex_content_get_property_name:
* @key: The key ID
*
* Retrieves the property name for @key.
*
* It's possible to return %NULL when the #MexContent does not want to
* associate a GObject property with a #MexContentMetadata key. This means,
* for instance that it will disable the #GBindings that are setup
* automatically by wigets like #MexContentBox or #MexContentButton.
*
* The default implementation returns %NULL for any @key value given.
*
* Return value: The property name or %NULL.
*/
const char *
mex_content_get_property_name (MexContent *content,
MexContentMetadata key)
{
MexContentIface *iface;
g_return_val_if_fail (MEX_IS_CONTENT (content), NULL);
iface = MEX_CONTENT_GET_IFACE (content);
if (iface->get_property_name)
return iface->get_property_name (content, key);
return NULL;
}
/**
* mex_content_get_metadata_fallback:
* @content: a #MexContent
* @key: a #MexContentMetadata
*
* Retrieves a string for @key for this content.
*
* Return value: The string corresponding to the @key. Because this string
* may be dynamically created it should be freed with g_free when no longer
* needed.
*
* Since: 0.2
*/
gchar *
mex_content_get_metadata_fallback (MexContent *content,
MexContentMetadata key)
{
MexContentIface *iface;
g_return_val_if_fail (MEX_IS_CONTENT (content), NULL);
iface = MEX_CONTENT_GET_IFACE (content);
if (G_LIKELY (iface->get_metadata_fallback))
return iface->get_metadata_fallback (content, key);
return NULL;
}
/**
* mex_content_save_metadata:
* @content: a #MexContent
*
* Save all metadata into underlaying backend.
*
* Since: 0.2
*/
void
mex_content_save_metadata (MexContent *content)
{
MexContentIface *iface;
g_return_if_fail (MEX_IS_CONTENT (content));
iface = MEX_CONTENT_GET_IFACE (content);
if (iface->save_metadata) {
iface->save_metadata (content);
return;
}
g_warning ("MexContent of type '%s' does not implement save_metadata()",
g_type_name (G_OBJECT_TYPE (content)));
}
/**
* mex_content_get_metadata:
* @content: a #MexContent
* @key: a #MexContentMetadata
*
* Retrieves a string for @key for this content.
*
* Return value: The string corresponding to the @key
*
* Since: 0.2
*/
const gchar *
mex_content_get_metadata (MexContent *content,
MexContentMetadata key)
{
MexContentIface *iface;
g_return_val_if_fail (MEX_IS_CONTENT (content), NULL);
iface = MEX_CONTENT_GET_IFACE (content);
if (G_LIKELY (iface->get_metadata))
return iface->get_metadata (content, key);
g_warning ("MexContent of type '%s' does not implement get_metadata()",
g_type_name (G_OBJECT_TYPE (content)));
return NULL;
}
/**
* mex_content_set_metadata:
* @content: a #MexContent
* @key: a #MexContentMetadata
* @value: a string corresponding to the new value of @key
*
* Sets a string for @key for this content.
*
* Since: 0.2
*/
void
mex_content_set_metadata (MexContent *content,
MexContentMetadata key,
const gchar *value)
{
MexContentIface *iface;
g_return_if_fail (MEX_IS_CONTENT (content));
iface = MEX_CONTENT_GET_IFACE (content);
if (G_LIKELY (iface->set_metadata)) {
iface->set_metadata (content, key, value);
return;
}
g_warning ("MexContent of type '%s' does not implement set_metadata()",
g_type_name (G_OBJECT_TYPE (content)));
}
void
mex_content_foreach_metadata (MexContent *content,
MexContentMetadataCb callback,
gpointer data)
{
MexContentIface *iface;
g_return_if_fail (MEX_IS_CONTENT (content));
g_return_if_fail (callback != NULL);
iface = MEX_CONTENT_GET_IFACE (content);
if (iface->foreach_metadata) {
iface->foreach_metadata (content, callback, data);
return;
}
g_warning ("MexContent of type '%s' does not implement foreach_metadata()",
g_type_name (G_OBJECT_TYPE (content)));
}
