9158825f9c
Refactored the directory structure so that services can be optionally excluded. This is step 1. Will be followed by another change that makes it possible to remove services from the build. Change-Id: Ideacedfd34b5e213217ad3ff4ebb21c4a8e73f85
110 lines
3.3 KiB
C++
110 lines
3.3 KiB
C++
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef _UI_INPUT_MANAGER_H
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#define _UI_INPUT_MANAGER_H
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/**
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* Native input manager.
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*/
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#include "EventHub.h"
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#include "InputReader.h"
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#include "InputDispatcher.h"
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#include <input/Input.h>
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#include <input/InputTransport.h>
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#include <utils/Errors.h>
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#include <utils/Vector.h>
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#include <utils/Timers.h>
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#include <utils/RefBase.h>
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#include <utils/String8.h>
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namespace android {
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/*
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* The input manager is the core of the system event processing.
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*
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* The input manager uses two threads.
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*
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* 1. The InputReaderThread (called "InputReader") reads and preprocesses raw input events,
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* applies policy, and posts messages to a queue managed by the DispatcherThread.
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* 2. The InputDispatcherThread (called "InputDispatcher") thread waits for new events on the
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* queue and asynchronously dispatches them to applications.
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*
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* By design, the InputReaderThread class and InputDispatcherThread class do not share any
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* internal state. Moreover, all communication is done one way from the InputReaderThread
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* into the InputDispatcherThread and never the reverse. Both classes may interact with the
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* InputDispatchPolicy, however.
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*
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* The InputManager class never makes any calls into Java itself. Instead, the
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* InputDispatchPolicy is responsible for performing all external interactions with the
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* system, including calling DVM services.
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*/
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class InputManagerInterface : public virtual RefBase {
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protected:
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InputManagerInterface() { }
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virtual ~InputManagerInterface() { }
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public:
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/* Starts the input manager threads. */
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virtual status_t start() = 0;
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/* Stops the input manager threads and waits for them to exit. */
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virtual status_t stop() = 0;
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/* Gets the input reader. */
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virtual sp<InputReaderInterface> getReader() = 0;
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/* Gets the input dispatcher. */
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virtual sp<InputDispatcherInterface> getDispatcher() = 0;
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};
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class InputManager : public InputManagerInterface {
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protected:
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virtual ~InputManager();
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public:
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InputManager(
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const sp<EventHubInterface>& eventHub,
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const sp<InputReaderPolicyInterface>& readerPolicy,
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const sp<InputDispatcherPolicyInterface>& dispatcherPolicy);
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// (used for testing purposes)
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InputManager(
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const sp<InputReaderInterface>& reader,
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const sp<InputDispatcherInterface>& dispatcher);
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virtual status_t start();
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virtual status_t stop();
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virtual sp<InputReaderInterface> getReader();
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virtual sp<InputDispatcherInterface> getDispatcher();
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private:
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sp<InputReaderInterface> mReader;
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sp<InputReaderThread> mReaderThread;
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sp<InputDispatcherInterface> mDispatcher;
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sp<InputDispatcherThread> mDispatcherThread;
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void initialize();
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};
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} // namespace android
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#endif // _UI_INPUT_MANAGER_H
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