1d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright/* 2d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * Copyright (C) 2010 The Android Open Source Project 3d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * 4d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * Licensed under the Apache License, Version 2.0 (the "License"); 5d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * you may not use this file except in compliance with the License. 6d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * You may obtain a copy of the License at 7d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * 8d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * http://www.apache.org/licenses/LICENSE-2.0 9d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * 10d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * Unless required by applicable law or agreed to in writing, software 11d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * distributed under the License is distributed on an "AS IS" BASIS, 12d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * See the License for the specific language governing permissions and 14d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * limitations under the License. 15d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright */ 16d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 17d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright#ifndef _UI_INPUT_MANAGER_H 18d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright#define _UI_INPUT_MANAGER_H 19d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 20d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright/** 21d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * Native input manager. 22d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright */ 23d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 24d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright#include "EventHub.h" 25d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright#include "InputReader.h" 26d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright#include "InputDispatcher.h" 27d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 28d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright#include <input/Input.h> 29d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright#include <input/InputTransport.h> 30d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright#include <utils/Errors.h> 31d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright#include <utils/Vector.h> 32d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright#include <utils/Timers.h> 33d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright#include <utils/RefBase.h> 34d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright#include <utils/String8.h> 35d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 36d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightnamespace android { 37d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 38d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright/* 39d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * The input manager is the core of the system event processing. 40d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * 41d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * The input manager uses two threads. 42d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * 43d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * 1. The InputReaderThread (called "InputReader") reads and preprocesses raw input events, 44d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * applies policy, and posts messages to a queue managed by the DispatcherThread. 45d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * 2. The InputDispatcherThread (called "InputDispatcher") thread waits for new events on the 46d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * queue and asynchronously dispatches them to applications. 47d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * 48d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * By design, the InputReaderThread class and InputDispatcherThread class do not share any 49d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * internal state. Moreover, all communication is done one way from the InputReaderThread 50d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * into the InputDispatcherThread and never the reverse. Both classes may interact with the 51d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * InputDispatchPolicy, however. 52d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * 53d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * The InputManager class never makes any calls into Java itself. Instead, the 54d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * InputDispatchPolicy is responsible for performing all external interactions with the 55d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * system, including calling DVM services. 56d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright */ 57d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightclass InputManagerInterface : public virtual RefBase { 58d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightprotected: 59d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright InputManagerInterface() { } 60d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright virtual ~InputManagerInterface() { } 61d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 62d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightpublic: 63d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright /* Starts the input manager threads. */ 64d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright virtual status_t start() = 0; 65d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 66d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright /* Stops the input manager threads and waits for them to exit. */ 67d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright virtual status_t stop() = 0; 68d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 69d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright /* Gets the input reader. */ 70d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright virtual sp<InputReaderInterface> getReader() = 0; 71d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 72d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright /* Gets the input dispatcher. */ 73d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright virtual sp<InputDispatcherInterface> getDispatcher() = 0; 74d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright}; 75d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 76d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightclass InputManager : public InputManagerInterface { 77d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightprotected: 78d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright virtual ~InputManager(); 79d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 80d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightpublic: 81d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright InputManager( 82d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright const sp<EventHubInterface>& eventHub, 83d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright const sp<InputReaderPolicyInterface>& readerPolicy, 84d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright const sp<InputDispatcherPolicyInterface>& dispatcherPolicy); 85d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 86d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // (used for testing purposes) 87d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright InputManager( 88d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright const sp<InputReaderInterface>& reader, 89d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright const sp<InputDispatcherInterface>& dispatcher); 90d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 91d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright virtual status_t start(); 92d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright virtual status_t stop(); 93d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 94d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright virtual sp<InputReaderInterface> getReader(); 95d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright virtual sp<InputDispatcherInterface> getDispatcher(); 96d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 97d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightprivate: 98d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright sp<InputReaderInterface> mReader; 99d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright sp<InputReaderThread> mReaderThread; 100d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 101d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright sp<InputDispatcherInterface> mDispatcher; 102d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright sp<InputDispatcherThread> mDispatcherThread; 103d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 104d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright void initialize(); 105d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright}; 106d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 107d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} // namespace android 108d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 109d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright#endif // _UI_INPUT_MANAGER_H 110