110 lines
3.3 KiB
C
110 lines
3.3 KiB
C
|
/*
|
||
|
|
* Copyright (C) 2010 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 _UI_INPUT_MANAGER_H
|
||
|
|
#define _UI_INPUT_MANAGER_H
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Native input manager.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "EventHub.h"
|
||
|
|
#include "InputReader.h"
|
||
|
|
#include "InputDispatcher.h"
|
||
|
|
|
||
|
|
#include <input/Input.h>
|
||
|
|
#include <input/InputTransport.h>
|
||
|
|
#include <utils/Errors.h>
|
||
|
|
#include <utils/Vector.h>
|
||
|
|
#include <utils/Timers.h>
|
||
|
|
#include <utils/RefBase.h>
|
||
|
|
#include <utils/String8.h>
|
||
|
|
|
||
|
|
namespace android {
|
||
|
|
|
||
|
|
/*
|
||
|
|
* The input manager is the core of the system event processing.
|
||
|
|
*
|
||
|
|
* The input manager uses two threads.
|
||
|
|
*
|
||
|
|
* 1. The InputReaderThread (called "InputReader") reads and preprocesses raw input events,
|
||
|
|
* applies policy, and posts messages to a queue managed by the DispatcherThread.
|
||
|
|
* 2. The InputDispatcherThread (called "InputDispatcher") thread waits for new events on the
|
||
|
|
* queue and asynchronously dispatches them to applications.
|
||
|
|
*
|
||
|
|
* By design, the InputReaderThread class and InputDispatcherThread class do not share any
|
||
|
|
* internal state. Moreover, all communication is done one way from the InputReaderThread
|
||
|
|
* into the InputDispatcherThread and never the reverse. Both classes may interact with the
|
||
|
|
* InputDispatchPolicy, however.
|
||
|
|
*
|
||
|
|
* The InputManager class never makes any calls into Java itself. Instead, the
|
||
|
|
* InputDispatchPolicy is responsible for performing all external interactions with the
|
||
|
|
* system, including calling DVM services.
|
||
|
|
*/
|
||
|
|
class InputManagerInterface : public virtual RefBase {
|
||
|
|
protected:
|
||
|
|
InputManagerInterface() { }
|
||
|
|
virtual ~InputManagerInterface() { }
|
||
|
|
|
||
|
|
public:
|
||
|
|
/* Starts the input manager threads. */
|
||
|
|
virtual status_t start() = 0;
|
||
|
|
|
||
|
|
/* Stops the input manager threads and waits for them to exit. */
|
||
|
|
virtual status_t stop() = 0;
|
||
|
|
|
||
|
|
/* Gets the input reader. */
|
||
|
|
virtual sp<InputReaderInterface> getReader() = 0;
|
||
|
|
|
||
|
|
/* Gets the input dispatcher. */
|
||
|
|
virtual sp<InputDispatcherInterface> getDispatcher() = 0;
|
||
|
|
};
|
||
|
|
|
||
|
|
class InputManager : public InputManagerInterface {
|
||
|
|
protected:
|
||
|
|
virtual ~InputManager();
|
||
|
|
|
||
|
|
public:
|
||
|
|
InputManager(
|
||
|
|
const sp<EventHubInterface>& eventHub,
|
||
|
|
const sp<InputReaderPolicyInterface>& readerPolicy,
|
||
|
|
const sp<InputDispatcherPolicyInterface>& dispatcherPolicy);
|
||
|
|
|
||
|
|
// (used for testing purposes)
|
||
|
|
InputManager(
|
||
|
|
const sp<InputReaderInterface>& reader,
|
||
|
|
const sp<InputDispatcherInterface>& dispatcher);
|
||
|
|
|
||
|
|
virtual status_t start();
|
||
|
|
virtual status_t stop();
|
||
|
|
|
||
|
|
virtual sp<InputReaderInterface> getReader();
|
||
|
|
virtual sp<InputDispatcherInterface> getDispatcher();
|
||
|
|
|
||
|
|
private:
|
||
|
|
sp<InputReaderInterface> mReader;
|
||
|
|
sp<InputReaderThread> mReaderThread;
|
||
|
|
|
||
|
|
sp<InputDispatcherInterface> mDispatcher;
|
||
|
|
sp<InputDispatcherThread> mDispatcherThread;
|
||
|
|
|
||
|
|
void initialize();
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace android
|
||
|
|
|
||
|
|
#endif // _UI_INPUT_MANAGER_H
|