1 #ifndef __DALI_INTERNAL_OBJECT_REGISTRY_H__
2 #define __DALI_INTERNAL_OBJECT_REGISTRY_H__
5 * Copyright (c) 2014 Samsung Electronics Co., Ltd.
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
23 #include <dali/public-api/common/set-wrapper.h>
25 #include <dali/public-api/object/ref-object.h>
26 #include <dali/public-api/object/object-registry.h>
27 #include <dali/public-api/object/base-object.h>
44 typedef IntrusivePtr<ObjectRegistry> ObjectRegistryPtr;
47 * The ObjectRegistry notifies it's observers when an object is created.
48 * There is a single instance of Object registry for each Dali-core instance.
49 * All Dali Objects need to register with ObjectRegistry to be observed by
50 * feedback plugin's and other observers.
52 class ObjectRegistry : public BaseObject
57 * Create the objectRegistry
59 static ObjectRegistryPtr New();
62 * Registers the Object into the Object Registry, which notifies
63 * about this object creation to its observers using signals. As
64 * the signals use a BaseHandle, the object must already have a
65 * ref-count > 0, otherwise it will get deleted on signal completion.
66 * @pre The object is not already registered.
67 * @pre the object is ref counted (held in an intrusive pointer)
68 * @param[in] object Pointer to the object.
70 void RegisterObject( Dali::BaseObject* object );
73 * Unregisters the Object from the Object Registry, Which notifies
74 * about this object destruction to its observers.
75 * @pre The object is already registered.
76 * @param[in] object Pointer to the object.
78 void UnregisterObject( Dali::BaseObject* object );
81 * @copydoc Dali::ObjectRegistry::ObjectCreatedSignal()
83 Dali::ObjectRegistry::ObjectCreatedSignalV2& ObjectCreatedSignal()
85 return mObjectCreatedSignalV2;
89 * @copydoc Dali::ObjectRegistry::ObjectDestroyedSignal()
91 Dali::ObjectRegistry::ObjectDestroyedSignalV2& ObjectDestroyedSignal()
93 return mObjectDestroyedSignalV2;
97 * Connects a callback function with the object registry signals.
98 * @param[in] object The object providing the signal.
99 * @param[in] tracker Used to disconnect the signal.
100 * @param[in] signalName The signal to connect to.
101 * @param[in] functor A newly allocated FunctorDelegate.
102 * @return True if the signal was connected.
103 * @post If a signal was connected, ownership of functor was passed to CallbackBase. Otherwise the caller is responsible for deleting the unused functor.
105 static bool DoConnectSignal( BaseObject* object, ConnectionTrackerInterface* tracker, const std::string& signalName, FunctorDelegate* functor );
110 * Protected constructor; see also ObjectRegistry::New()
115 * A reference counted object may only be deleted by calling Unreference()
121 Dali::ObjectRegistry::ObjectCreatedSignalV2 mObjectCreatedSignalV2;
122 Dali::ObjectRegistry::ObjectDestroyedSignalV2 mObjectDestroyedSignalV2;
125 std::set< Dali::BaseObject* > mDebugRegistry; ///< This allows us to assert that an object is only registered once (debug builds only)
130 } // namespace Internal
132 // Helpers for public-api forwarding methods
134 inline Internal::ObjectRegistry& GetImplementation(Dali::ObjectRegistry& objectRegistry)
136 DALI_ASSERT_ALWAYS( objectRegistry && "ObjectRegistry handle is empty" );
138 BaseObject& handle = objectRegistry.GetBaseObject();
140 return static_cast<Internal::ObjectRegistry&>(handle);
143 inline const Internal::ObjectRegistry& GetImplementation(const Dali::ObjectRegistry& objectRegistry)
145 DALI_ASSERT_ALWAYS( objectRegistry && "ObjectRegistry handle is empty" );
147 const BaseObject& handle = objectRegistry.GetBaseObject();
149 return static_cast<const Internal::ObjectRegistry&>(handle);
154 #endif // __DALI_INTERNAL_OBJECT_REGISTRY_H__