1 #ifndef DALI_INTERNAL_PROPERTY_NOTIFIER_H
2 #define DALI_INTERNAL_PROPERTY_NOTIFIER_H
5 * Copyright (c) 2023 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>
23 #include <dali/internal/event/common/notifier-interface.h> ///< for NotifierInterface::NotifyId
31 class PropertyNotification;
33 } //namespace SceneGraph
36 * Interface used by the update-thread to trigger property changed notification signals.
38 class PropertyNotifier
44 virtual ~PropertyNotifier() = default;
47 * Provide notification signals for a changed property.
48 * This method should be called in the event-thread; the update-thread must use PropertyChangedMessage.
49 * @param[in] notifyId A notifyId to the SceneGraph::PropertyNotification that has been mnodified.
50 * @param[in] validity Passes in whether the notification was triggered by a true or false condition result
52 virtual void NotifyProperty(NotifierInterface::NotifyId notifyId, bool validity) = 0;
56 * Notification message for when a property has been modified
57 * @param[in] notifier This will provide the notification signal.
59 inline MessageBase* PropertyChangedMessage(PropertyNotifier& notifier, NotifierInterface::NotifyId notifyId, bool validity)
61 return new MessageValue2<PropertyNotifier, NotifierInterface::NotifyId, bool>(¬ifier,
62 &PropertyNotifier::NotifyProperty,
67 } // namespace Internal
71 #endif // DALI_INTERNAL_PROPERTY_NOTIFIER_H