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/*
* Copyright (C) 2020 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_POINTER_CONTROLLER_CONTEXT_H
#define _UI_POINTER_CONTROLLER_CONTEXT_H
#include <PointerControllerInterface.h>
#include <gui/DisplayEventReceiver.h>
#include <input/DisplayViewport.h>
#include <input/Input.h>
#include <utils/BitSet.h>
#include <utils/Looper.h>
#include <utils/RefBase.h>
#include <functional>
#include <map>
#include <memory>
#include <vector>
#include "SpriteController.h"
namespace android {
class PointerController;
class MouseCursorController;
class TouchSpotController;
/*
* Pointer resources.
*/
struct PointerResources {
SpriteIcon spotHover;
SpriteIcon spotTouch;
SpriteIcon spotAnchor;
};
struct PointerAnimation {
std::vector<SpriteIcon> animationFrames;
nsecs_t durationPerFrame;
};
enum class InactivityTimeout {
NORMAL = 0,
SHORT = 1,
};
/*
* Pointer controller policy interface.
*
* The pointer controller policy is used by the pointer controller to interact with
* the Window Manager and other system components.
*
* The actual implementation is partially supported by callbacks into the DVM
* via JNI. This interface is also mocked in the unit tests.
*/
class PointerControllerPolicyInterface : public virtual RefBase {
protected:
PointerControllerPolicyInterface() {}
virtual ~PointerControllerPolicyInterface() {}
public:
virtual void loadPointerIcon(SpriteIcon* icon, int32_t displayId) = 0;
virtual void loadPointerResources(PointerResources* outResources, int32_t displayId) = 0;
virtual void loadAdditionalMouseResources(
std::map<int32_t, SpriteIcon>* outResources,
std::map<int32_t, PointerAnimation>* outAnimationResources, int32_t displayId) = 0;
virtual int32_t getDefaultPointerIconId() = 0;
virtual int32_t getCustomPointerIconId() = 0;
virtual void onPointerDisplayIdChanged(int32_t displayId, float xPos, float yPos) = 0;
};
/*
* Contains logic and resources shared among PointerController,
* MouseCursorController, and TouchSpotController.
*/
class PointerControllerContext {
public:
PointerControllerContext(const sp<PointerControllerPolicyInterface>& policy,
const sp<Looper>& looper, const sp<SpriteController>& spriteController,
PointerController& controller);
~PointerControllerContext();
void removeInactivityTimeout();
void resetInactivityTimeout();
void startAnimation();
void setInactivityTimeout(InactivityTimeout inactivityTimeout);
nsecs_t getAnimationTime();
void clearSpotsByDisplay(int32_t displayId);
void setHandlerController(std::shared_ptr<PointerController> controller);
void setCallbackController(std::shared_ptr<PointerController> controller);
sp<PointerControllerPolicyInterface> getPolicy();
sp<SpriteController> getSpriteController();
void handleDisplayEvents();
void addAnimationCallback(int32_t displayId, std::function<bool(nsecs_t)> callback);
void removeAnimationCallback(int32_t displayId);
class MessageHandler : public virtual android::MessageHandler {
public:
enum {
MSG_INACTIVITY_TIMEOUT,
};
void handleMessage(const Message& message) override;
std::weak_ptr<PointerController> pointerController;
};
class LooperCallback : public virtual android::LooperCallback {
public:
int handleEvent(int fd, int events, void* data) override;
std::weak_ptr<PointerController> pointerController;
};
private:
class PointerAnimator {
public:
PointerAnimator(PointerControllerContext& context);
void addCallback(int32_t displayId, std::function<bool(nsecs_t)> callback);
void removeCallback(int32_t displayId);
void handleVsyncEvents();
nsecs_t getAnimationTimeLocked();
mutable std::mutex mLock;
private:
struct Locked {
bool animationPending{false};
nsecs_t animationTime{systemTime(SYSTEM_TIME_MONOTONIC)};
std::unordered_map<int32_t, std::function<bool(nsecs_t)>> callbacks;
} mLocked GUARDED_BY(mLock);
DisplayEventReceiver mDisplayEventReceiver;
PointerControllerContext& mContext;
void initializeDisplayEventReceiver();
void startAnimationLocked();
void handleCallbacksLocked(nsecs_t timestamp);
};
sp<PointerControllerPolicyInterface> mPolicy;
sp<Looper> mLooper;
sp<SpriteController> mSpriteController;
sp<MessageHandler> mHandler;
sp<LooperCallback> mCallback;
PointerController& mController;
PointerAnimator mAnimator;
mutable std::mutex mLock;
struct Locked {
InactivityTimeout inactivityTimeout;
} mLocked GUARDED_BY(mLock);
void resetInactivityTimeoutLocked();
};
} // namespace android
#endif // _UI_POINTER_CONTROLLER_CONTEXT_H
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