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controller: factor out duplicated code and add a description for it.

Browse source 
Also fix typo in the tests while reviewing them.
This commit is contained in:
Stefan Kost 2009-04-14 22:07:38 +03:00
parent 5ca6853eb1
commit dd3c9ab6b6
2 changed files with 56 additions and 60 deletions
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112
libs/gst/controller/gstcontroller.c
View file

@ -201,6 +201,58 @@ gst_controller_find_controlled_property (GstController * self,
return NULL;
}
/*
* gst_controller_add_property:
* @self: the controller object or %NULL if none yet exists
* @object: object to bind the property
* @name: name of projecty in @object
* @ref_existing: pointer to flag that tracks if we need to ref an existng
* controller still
*
* Creates a new #GstControlledProperty if there is none for property @name yet.
* In case this is the first controlled propery, it creates the controller as
* well.
*
* Returns: a newly created controller object or reffed existing one with the
* given property bound.
*/
static GstController *
gst_controller_add_property (GstController * self, GObject * object,
gchar * name, gboolean * ref_existing)
{
/* test if this property isn't yet controlled */
if (!self || !gst_controller_find_controlled_property (self, name)) {
GstControlledProperty *prop;
/* create GstControlledProperty and add to self->propeties List */
if ((prop = gst_controlled_property_new (object, name))) {
/* if we don't have a controller object yet, now is the time to create one */
if (!self) {
self = g_object_new (GST_TYPE_CONTROLLER, NULL);
self->object = g_object_ref (object);
/* store the controller */
g_object_set_qdata (object, priv_gst_controller_key, self);
*ref_existing = FALSE;
} else {
/* only want one single _ref(), even for multiple properties */
if (*ref_existing) {
g_object_ref (self);
*ref_existing = FALSE;
GST_INFO ("returning existing controller");
}
}
self->properties = g_list_prepend (self->properties, prop);
}
} else {
GST_WARNING ("trying to control property again");
if (*ref_existing) {
g_object_ref (self);
*ref_existing = FALSE;
}
}
return self;
}
/* methods */
/**
@ -216,7 +268,6 @@ GstController *
gst_controller_new_valist (GObject * object, va_list var_args)
{
GstController *self;
GstControlledProperty *prop;
gboolean ref_existing = TRUE;
gchar *name;
@ -227,34 +278,7 @@ gst_controller_new_valist (GObject * object, va_list var_args)
self = g_object_get_qdata (object, priv_gst_controller_key);
/* create GstControlledProperty for each property */
while ((name = va_arg (var_args, gchar *))) {
/* test if this property isn't yet controlled */
if (!self || !gst_controller_find_controlled_property (self, name)) {
/* create GstControlledProperty and add to self->propeties List */
if ((prop = gst_controlled_property_new (object, name))) {
/* if we don't have a controller object yet, now is the time to create one */
if (!self) {
self = g_object_new (GST_TYPE_CONTROLLER, NULL);
self->object = g_object_ref (object);
/* store the controller */
g_object_set_qdata (object, priv_gst_controller_key, self);
ref_existing = FALSE;
} else {
/* only want one single _ref(), even for multiple properties */
if (ref_existing) {
g_object_ref (self);
ref_existing = FALSE;
GST_INFO ("returning existing controller");
}
}
self->properties = g_list_prepend (self->properties, prop);
}
} else {
GST_WARNING ("trying to control property again");
if (ref_existing) {
g_object_ref (self);
ref_existing = FALSE;
}
}
self = gst_controller_add_property (self, object, name, &ref_existing);
}
va_end (var_args);
@ -276,7 +300,6 @@ GstController *
gst_controller_new_list (GObject * object, GList * list)
{
GstController *self;
GstControlledProperty *prop;
gboolean ref_existing = TRUE;
gchar *name;
GList *node;
@ -289,34 +312,7 @@ gst_controller_new_list (GObject * object, GList * list)
/* create GstControlledProperty for each property */
for (node = list; node; node = g_list_next (node)) {
name = (gchar *) node->data;
/* test if this property isn't yet controlled */
if (!self || !gst_controller_find_controlled_property (self, name)) {
/* create GstControlledProperty and add to self->propeties List */
if ((prop = gst_controlled_property_new (object, name))) {
/* if we don't have a controller object yet, now is the time to create one */
if (!self) {
self = g_object_new (GST_TYPE_CONTROLLER, NULL);
self->object = g_object_ref (object);
/* store the controller */
g_object_set_qdata (object, priv_gst_controller_key, self);
ref_existing = FALSE;
} else {
/* only want one single _ref(), even for multiple properties */
if (ref_existing) {
g_object_ref (self);
ref_existing = FALSE;
GST_INFO ("returning existing controller");
}
}
self->properties = g_list_prepend (self->properties, prop);
}
} else {
GST_WARNING ("trying to control property again");
if (ref_existing) {
g_object_ref (self);
ref_existing = FALSE;
}
}
self = gst_controller_add_property (self, object, name, &ref_existing);
}
if (self)

4
tests/check/libs/controller.c
View file

@ -319,7 +319,7 @@ GST_START_TEST (controller_new_fail4)
GST_END_TEST;
/* tests for static params */
/* tests for construct-only params */
GST_START_TEST (controller_new_fail5)
{
GstController *ctrl;
@ -456,7 +456,7 @@ GST_START_TEST (controller_param_twice)
res = gst_controller_remove_properties (ctrl, "ulong", NULL);
fail_unless (res, NULL);
/* removing it agian should not work */
/* removing it again should not work */
res = gst_controller_remove_properties (ctrl, "ulong", NULL);
fail_unless (!res, NULL);