1 #ifndef __DALI_INTERNAL_CALLBACK_MANAGER_H__
2 #define __DALI_INTERNAL_CALLBACK_MANAGER_H__
5 * Copyright (c) 2018 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/public-api/signals/callback.h>
25 #include <dali/public-api/dali-adaptor-common.h>
37 * Abstract interface to install call backs in to an applications main loop.
45 * Create a new call back interface
47 static CallbackManager* New();
52 virtual ~CallbackManager() {}
55 * @brief Adds a @p callback to be run on idle.
56 * @note Must be called from the main thread only.
58 * @param[in] callback custom callback function.
60 * @return true on success
62 virtual bool AddIdleCallback( CallbackBase* callback ) = 0;
65 * @brief Removes a previously added @p callback.
66 * @note Must be called from main thread only.
68 * Does nothing if the @p callback doesn't exist.
70 * @param[in] callback The callback to be removed.
72 virtual void RemoveIdleCallback( CallbackBase* callback ) = 0;
75 * Starts the callback manager.
77 virtual void Start() = 0;
80 * Stop the callback manager and can remove all pending callbacks synchronously.
81 * This call will synchronise with the main loop and not return
82 * until all call backs have been deleted.
84 virtual void Stop() = 0;
95 // Undefined copy constructor.
96 CallbackManager( const CallbackManager& );
98 // Undefined assignment operator.
99 CallbackManager& operator=( const CallbackManager& );
103 } // namespace Adaptor
105 } // namespace Internal
109 #endif // __DALI_INTERNAL_CALLBACK_MANAGER_H__