Files
wireplumber/lib/wp/object.h

142 lines
3.7 KiB
C

/* WirePlumber
*
* Copyright © 2020 Collabora Ltd.
* @author George Kiagiadakis <george.kiagiadakis@collabora.com>
*
* SPDX-License-Identifier: MIT
*/
/*!
* @file object.h
*/
#ifndef __WIREPLUMBER_OBJECT_H__
#define __WIREPLUMBER_OBJECT_H__
#include "core.h"
#include "transition.h"
G_BEGIN_DECLS
/*!
* @memberof WpObject
*
* @section object_features_section WpObjectFeatures
*
* @brief Flags that specify functionality that is available on this class.
*
* Use wp_object_activate() to enable more features,
* wp_object_get_supported_features() to see which features are supported and
* wp_object_get_active_features() to find out which features are already
* enabled. Features can also be deactivated later using wp_object_deactivate().
*
* Actual feature flags are to be specified by subclasses and their interfaces.
* %WP_OBJECT_FEATURES_ALL is a special value that can be used to activate
* all the supported features in any given object.
*/
typedef guint WpObjectFeatures;
/*!
* @memberof WpObject
*
* @brief Special value that can be used to activate
* all the supported features in any given object.
*/
static const WpObjectFeatures WP_OBJECT_FEATURES_ALL = 0xffffffff;
/*!
* @memberof WpFeatureActivationTransition
*
* @brief The [WpFeatureActivationTransition](@ref feature_activation_transition_section)
* <a href="https://developer.gnome.org/gobject/stable/gobject-Type-Information.html#GType">
* GType</a>
*
* @code
* #define WP_TYPE_FEATURE_ACTIVATION_TRANSITION (wp_feature_activation_transition_get_type ())
* @endcode
*
*/
#define WP_TYPE_FEATURE_ACTIVATION_TRANSITION \
(wp_feature_activation_transition_get_type ())
WP_API
G_DECLARE_FINAL_TYPE (WpFeatureActivationTransition,
wp_feature_activation_transition,
WP, FEATURE_ACTIVATION_TRANSITION, WpTransition)
WP_API
WpObjectFeatures wp_feature_activation_transition_get_requested_features (
WpFeatureActivationTransition * self);
/*!
* @memberof WpObject
*
* @brief The [WpObject](@ref object_section)
* <a href="https://developer.gnome.org/gobject/stable/gobject-Type-Information.html#GType">
* GType</a>
*
* @code
* #define WP_TYPE_OBJECT (wp_object_get_type ())
* @endcode
*
*/
#define WP_TYPE_OBJECT (wp_object_get_type ())
WP_API
G_DECLARE_DERIVABLE_TYPE (WpObject, wp_object, WP, OBJECT, GObject)
/*!
* @memberof WpObject
*
* @brief
* @em parent_class
*/
struct _WpObjectClass
{
GObjectClass parent_class;
WpObjectFeatures (*get_supported_features) (WpObject * self);
guint (*activate_get_next_step) (WpObject * self,
WpFeatureActivationTransition * transition, guint step,
WpObjectFeatures missing);
void (*activate_execute_step) (WpObject * self,
WpFeatureActivationTransition * transition, guint step,
WpObjectFeatures missing);
void (*deactivate) (WpObject * self, WpObjectFeatures features);
};
WP_API
WpCore * wp_object_get_core (WpObject * self);
WP_API
WpObjectFeatures wp_object_get_active_features (WpObject * self);
WP_API
WpObjectFeatures wp_object_get_supported_features (WpObject * self);
WP_API
void wp_object_activate (WpObject * self,
WpObjectFeatures features, GCancellable * cancellable,
GAsyncReadyCallback callback, gpointer user_data);
WP_API
void wp_object_activate_closure (WpObject * self,
WpObjectFeatures features, GCancellable * cancellable, GClosure *closure);
WP_API
gboolean wp_object_activate_finish (WpObject * self, GAsyncResult * res,
GError ** error);
WP_API
void wp_object_deactivate (WpObject * self, WpObjectFeatures features);
/* for subclasses only */
WP_API
void wp_object_update_features (WpObject * self, WpObjectFeatures activated,
WpObjectFeatures deactivated);
G_END_DECLS
#endif