/* * Copyright (C) 2013 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #ifndef ANDROID_HWUI_TASK_PROCESSOR_H #define ANDROID_HWUI_TASK_PROCESSOR_H #include <utils/RefBase.h> #include "Task.h" #include "TaskManager.h" namespace android { namespace uirenderer { class TaskProcessorBase: public RefBase { public: TaskProcessorBase() { } virtual ~TaskProcessorBase() { }; private: friend class TaskManager; virtual void process(const sp<TaskBase>& task) = 0; }; template<typename T> class TaskProcessor: public TaskProcessorBase { public: TaskProcessor(TaskManager* manager): mManager(manager) { } virtual ~TaskProcessor() { } bool add(const sp<Task<T> >& task); virtual void onProcess(const sp<Task<T> >& task) = 0; private: virtual void process(const sp<TaskBase>& task) { sp<Task<T> > realTask = static_cast<Task<T>* >(task.get()); // This is the right way to do it but sp<> doesn't play nice // sp<Task<T> > realTask = static_cast<sp<Task<T> > >(task); onProcess(realTask); } TaskManager* mManager; }; template<typename T> bool TaskProcessor<T>::add(const sp<Task<T> >& task) { if (mManager) { sp<TaskProcessor<T> > self(this); return mManager->addTask(task, self); } return false; } }; // namespace uirenderer }; // namespace android #endif // ANDROID_HWUI_TASK_PROCESSOR_H