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diff --git a/libs/input/PointerControllerContext.h b/libs/input/PointerControllerContext.h
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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 <ui/DisplayInfo.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;
+};
+
+/*
+ * 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