1 #ifndef DALI_INTERNAL_PROPERTY_NOTIFIER_H
2 #define DALI_INTERNAL_PROPERTY_NOTIFIER_H
5 * Copyright (c) 2019 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.
22 #include <dali/internal/common/message.h>
33 class PropertyNotification;
35 } //namespace SceneGraph
38 * Interface used by the update-thread to trigger property changed notification signals.
40 class PropertyNotifier
47 virtual ~PropertyNotifier() = default;
50 * Provide notification signals for a changed property.
51 * This method should be called in the event-thread; the update-thread must use PropertyChangedMessage.
52 * @param[in] propertyNotification A pointer to the SceneGraph::PropertyNotification that has been mnodified.
53 * @param[in] validity Passes in whether the notification was triggered by a true or false condition result
55 virtual void NotifyProperty( SceneGraph::PropertyNotification* propertyNotification, bool validity ) = 0;
59 * Notification message for when a property has been modified
60 * @param[in] notifier This will provide the notification signal.
62 inline MessageBase* PropertyChangedMessage( PropertyNotifier& notifier, SceneGraph::PropertyNotification* propertyNotification, bool validity )
64 return new MessageValue2< PropertyNotifier, SceneGraph::PropertyNotification*, bool >( ¬ifier,
65 &PropertyNotifier::NotifyProperty,
66 propertyNotification, validity);
69 } // namespace Internal
73 #endif // DALI_INTERNAL_PROPERTY_NOTIFIER_H