Divide InputDispatcher into several files.

This CL does:
1) Isolate implementation details of InputDispatcher from outside and
only expose necessary header files;
2) Move implementation details into android::inputdispatcher namespace;
3) Make input dispatcher a static library for inputflinger to link
against;
4) Add InputDispatcherFactory.{h,cpp} to isolate implementation details
in InputDispatcher.h from InputManager.

Bug: 140139676
Test: Touches on touchscreen can be dispatched to right windows.
Change-Id: Ib61c16fd41f3f76f538a3de9b54f31ac304e03a5

1 files changed, 23 insertions, 781 deletions

diff --git a/services/inputflinger/dispatcher/InputDispatcher.h b/services/inputflinger/dispatcher/InputDispatcher.h
index a90f958e79..f2c04028e4 100644
--- a/services/inputflinger/dispatcher/InputDispatcher.h
+++ b/services/inputflinger/dispatcher/InputDispatcher.h
@@ -17,371 +17,42 @@
 #ifndef _UI_INPUT_DISPATCHER_H
 #define _UI_INPUT_DISPATCHER_H
 
-#include <cutils/atomic.h>
-#include <input/ISetInputWindowsListener.h>
+#include "CancelationOptions.h"
+#include "Entry.h"
+#include "InjectionState.h"
+#include "InputDispatcherConfiguration.h"
+#include "InputDispatcherInterface.h"
+#include "InputDispatcherPolicyInterface.h"
+#include "InputState.h"
+#include "InputTarget.h"
+#include "Monitor.h"
+#include "TouchState.h"
+#include "TouchedWindow.h"
+
 #include <input/Input.h>
 #include <input/InputApplication.h>
 #include <input/InputTransport.h>
 #include <input/InputWindow.h>
+#include <limits.h>
+#include <stddef.h>
 #include <ui/Region.h>
+#include <unistd.h>
 #include <utils/BitSet.h>
 #include <utils/Looper.h>
 #include <utils/RefBase.h>
 #include <utils/Timers.h>
 #include <utils/threads.h>
 #include <condition_variable>
-#include <optional>
-#include <unordered_map>
-
-#include <limits.h>
-#include <stddef.h>
-#include <unistd.h>
 #include <deque>
+#include <optional>
 #include <unordered_map>
 
-#include "InputListener.h"
-#include "InputReporterInterface.h"
-
-namespace android {
+#include <InputListener.h>
+#include <InputReporterInterface.h>
 
-/*
- * Constants used to report the outcome of input event injection.
- */
-enum {
-    /* (INTERNAL USE ONLY) Specifies that injection is pending and its outcome is unknown. */
-    INPUT_EVENT_INJECTION_PENDING = -1,
-
-    /* Injection succeeded. */
-    INPUT_EVENT_INJECTION_SUCCEEDED = 0,
-
-    /* Injection failed because the injector did not have permission to inject
-     * into the application with input focus. */
-    INPUT_EVENT_INJECTION_PERMISSION_DENIED = 1,
-
-    /* Injection failed because there were no available input targets. */
-    INPUT_EVENT_INJECTION_FAILED = 2,
-
-    /* Injection failed due to a timeout. */
-    INPUT_EVENT_INJECTION_TIMED_OUT = 3
-};
-
-/*
- * Constants used to determine the input event injection synchronization mode.
- */
-enum {
-    /* Injection is asynchronous and is assumed always to be successful. */
-    INPUT_EVENT_INJECTION_SYNC_NONE = 0,
-
-    /* Waits for previous events to be dispatched so that the input dispatcher can determine
-     * whether input event injection willbe permitted based on the current input focus.
-     * Does not wait for the input event to finish processing. */
-    INPUT_EVENT_INJECTION_SYNC_WAIT_FOR_RESULT = 1,
+namespace android::inputdispatcher {
 
-    /* Waits for the input event to be completely processed. */
-    INPUT_EVENT_INJECTION_SYNC_WAIT_FOR_FINISHED = 2,
-};
-
-/*
- * An input target specifies how an input event is to be dispatched to a particular window
- * including the window's input channel, control flags, a timeout, and an X / Y offset to
- * be added to input event coordinates to compensate for the absolute position of the
- * window area.
- */
-struct InputTarget {
-    enum {
-        /* This flag indicates that the event is being delivered to a foreground application. */
-        FLAG_FOREGROUND = 1 << 0,
-
-        /* This flag indicates that the MotionEvent falls within the area of the target
-         * obscured by another visible window above it.  The motion event should be
-         * delivered with flag AMOTION_EVENT_FLAG_WINDOW_IS_OBSCURED. */
-        FLAG_WINDOW_IS_OBSCURED = 1 << 1,
-
-        /* This flag indicates that a motion event is being split across multiple windows. */
-        FLAG_SPLIT = 1 << 2,
-
-        /* This flag indicates that the pointer coordinates dispatched to the application
-         * will be zeroed out to avoid revealing information to an application. This is
-         * used in conjunction with FLAG_DISPATCH_AS_OUTSIDE to prevent apps not sharing
-         * the same UID from watching all touches. */
-        FLAG_ZERO_COORDS = 1 << 3,
-
-        /* This flag indicates that the event should be sent as is.
-         * Should always be set unless the event is to be transmuted. */
-        FLAG_DISPATCH_AS_IS = 1 << 8,
-
-        /* This flag indicates that a MotionEvent with AMOTION_EVENT_ACTION_DOWN falls outside
-         * of the area of this target and so should instead be delivered as an
-         * AMOTION_EVENT_ACTION_OUTSIDE to this target. */
-        FLAG_DISPATCH_AS_OUTSIDE = 1 << 9,
-
-        /* This flag indicates that a hover sequence is starting in the given window.
-         * The event is transmuted into ACTION_HOVER_ENTER. */
-        FLAG_DISPATCH_AS_HOVER_ENTER = 1 << 10,
-
-        /* This flag indicates that a hover event happened outside of a window which handled
-         * previous hover events, signifying the end of the current hover sequence for that
-         * window.
-         * The event is transmuted into ACTION_HOVER_ENTER. */
-        FLAG_DISPATCH_AS_HOVER_EXIT = 1 << 11,
-
-        /* This flag indicates that the event should be canceled.
-         * It is used to transmute ACTION_MOVE into ACTION_CANCEL when a touch slips
-         * outside of a window. */
-        FLAG_DISPATCH_AS_SLIPPERY_EXIT = 1 << 12,
-
-        /* This flag indicates that the event should be dispatched as an initial down.
-         * It is used to transmute ACTION_MOVE into ACTION_DOWN when a touch slips
-         * into a new window. */
-        FLAG_DISPATCH_AS_SLIPPERY_ENTER = 1 << 13,
-
-        /* Mask for all dispatch modes. */
-        FLAG_DISPATCH_MASK = FLAG_DISPATCH_AS_IS | FLAG_DISPATCH_AS_OUTSIDE |
-                FLAG_DISPATCH_AS_HOVER_ENTER | FLAG_DISPATCH_AS_HOVER_EXIT |
-                FLAG_DISPATCH_AS_SLIPPERY_EXIT | FLAG_DISPATCH_AS_SLIPPERY_ENTER,
-
-        /* This flag indicates that the target of a MotionEvent is partly or wholly
-         * obscured by another visible window above it.  The motion event should be
-         * delivered with flag AMOTION_EVENT_FLAG_WINDOW_IS_PARTIALLY_OBSCURED. */
-        FLAG_WINDOW_IS_PARTIALLY_OBSCURED = 1 << 14,
-
-    };
-
-    // The input channel to be targeted.
-    sp<InputChannel> inputChannel;
-
-    // Flags for the input target.
-    int32_t flags;
-
-    // The x and y offset to add to a MotionEvent as it is delivered.
-    // (ignored for KeyEvents)
-    float xOffset, yOffset;
-
-    // Scaling factor to apply to MotionEvent as it is delivered.
-    // (ignored for KeyEvents)
-    float globalScaleFactor;
-    float windowXScale = 1.0f;
-    float windowYScale = 1.0f;
-
-    // The subset of pointer ids to include in motion events dispatched to this input target
-    // if FLAG_SPLIT is set.
-    BitSet32 pointerIds;
-};
-
-/*
- * Input dispatcher configuration.
- *
- * Specifies various options that modify the behavior of the input dispatcher.
- * The values provided here are merely defaults. The actual values will come from ViewConfiguration
- * and are passed into the dispatcher during initialization.
- */
-struct InputDispatcherConfiguration {
-    // The key repeat initial timeout.
-    nsecs_t keyRepeatTimeout;
-
-    // The key repeat inter-key delay.
-    nsecs_t keyRepeatDelay;
-
-    InputDispatcherConfiguration()
-          : keyRepeatTimeout(500 * 1000000LL), keyRepeatDelay(50 * 1000000LL) {}
-};
-
-/*
- * Input dispatcher policy interface.
- *
- * The input reader policy is used by the input reader 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 InputDispatcherPolicyInterface : public virtual RefBase {
-protected:
-    InputDispatcherPolicyInterface() {}
-    virtual ~InputDispatcherPolicyInterface() {}
-
-public:
-    /* Notifies the system that a configuration change has occurred. */
-    virtual void notifyConfigurationChanged(nsecs_t when) = 0;
-
-    /* Notifies the system that an application is not responding.
-     * Returns a new timeout to continue waiting, or 0 to abort dispatch. */
-    virtual nsecs_t notifyANR(const sp<InputApplicationHandle>& inputApplicationHandle,
-                              const sp<IBinder>& token, const std::string& reason) = 0;
-
-    /* Notifies the system that an input channel is unrecoverably broken. */
-    virtual void notifyInputChannelBroken(const sp<IBinder>& token) = 0;
-    virtual void notifyFocusChanged(const sp<IBinder>& oldToken, const sp<IBinder>& newToken) = 0;
-
-    /* Gets the input dispatcher configuration. */
-    virtual void getDispatcherConfiguration(InputDispatcherConfiguration* outConfig) = 0;
-
-    /* Filters an input event.
-     * Return true to dispatch the event unmodified, false to consume the event.
-     * A filter can also transform and inject events later by passing POLICY_FLAG_FILTERED
-     * to injectInputEvent.
-     */
-    virtual bool filterInputEvent(const InputEvent* inputEvent, uint32_t policyFlags) = 0;
-
-    /* Intercepts a key event immediately before queueing it.
-     * The policy can use this method as an opportunity to perform power management functions
-     * and early event preprocessing such as updating policy flags.
-     *
-     * This method is expected to set the POLICY_FLAG_PASS_TO_USER policy flag if the event
-     * should be dispatched to applications.
-     */
-    virtual void interceptKeyBeforeQueueing(const KeyEvent* keyEvent, uint32_t& policyFlags) = 0;
-
-    /* Intercepts a touch, trackball or other motion event before queueing it.
-     * The policy can use this method as an opportunity to perform power management functions
-     * and early event preprocessing such as updating policy flags.
-     *
-     * This method is expected to set the POLICY_FLAG_PASS_TO_USER policy flag if the event
-     * should be dispatched to applications.
-     */
-    virtual void interceptMotionBeforeQueueing(const int32_t displayId, nsecs_t when,
-                                               uint32_t& policyFlags) = 0;
-
-    /* Allows the policy a chance to intercept a key before dispatching. */
-    virtual nsecs_t interceptKeyBeforeDispatching(const sp<IBinder>& token,
-                                                  const KeyEvent* keyEvent,
-                                                  uint32_t policyFlags) = 0;
-
-    /* Allows the policy a chance to perform default processing for an unhandled key.
-     * Returns an alternate keycode to redispatch as a fallback, or 0 to give up. */
-    virtual bool dispatchUnhandledKey(const sp<IBinder>& token, const KeyEvent* keyEvent,
-                                      uint32_t policyFlags, KeyEvent* outFallbackKeyEvent) = 0;
-
-    /* Notifies the policy about switch events.
-     */
-    virtual void notifySwitch(nsecs_t when, uint32_t switchValues, uint32_t switchMask,
-                              uint32_t policyFlags) = 0;
-
-    /* Poke user activity for an event dispatched to a window. */
-    virtual void pokeUserActivity(nsecs_t eventTime, int32_t eventType) = 0;
-
-    /* Checks whether a given application pid/uid has permission to inject input events
-     * into other applications.
-     *
-     * This method is special in that its implementation promises to be non-reentrant and
-     * is safe to call while holding other locks.  (Most other methods make no such guarantees!)
-     */
-    virtual bool checkInjectEventsPermissionNonReentrant(int32_t injectorPid,
-                                                         int32_t injectorUid) = 0;
-
-    /* Notifies the policy that a pointer down event has occurred outside the current focused
-     * window.
-     *
-     * The touchedToken passed as an argument is the window that received the input event.
-     */
-    virtual void onPointerDownOutsideFocus(const sp<IBinder>& touchedToken) = 0;
-};
-
-/* Notifies the system about input events generated by the input reader.
- * The dispatcher is expected to be mostly asynchronous. */
-class InputDispatcherInterface : public virtual RefBase, public InputListenerInterface {
-protected:
-    InputDispatcherInterface() {}
-    virtual ~InputDispatcherInterface() {}
-
-public:
-    /* Dumps the state of the input dispatcher.
-     *
-     * This method may be called on any thread (usually by the input manager). */
-    virtual void dump(std::string& dump) = 0;
-
-    /* Called by the heatbeat to ensures that the dispatcher has not deadlocked. */
-    virtual void monitor() = 0;
-
-    /* Runs a single iteration of the dispatch loop.
-     * Nominally processes one queued event, a timeout, or a response from an input consumer.
-     *
-     * This method should only be called on the input dispatcher thread.
-     */
-    virtual void dispatchOnce() = 0;
-
-    /* Injects an input event and optionally waits for sync.
-     * The synchronization mode determines whether the method blocks while waiting for
-     * input injection to proceed.
-     * Returns one of the INPUT_EVENT_INJECTION_XXX constants.
-     *
-     * This method may be called on any thread (usually by the input manager).
-     */
-    virtual int32_t injectInputEvent(const InputEvent* event, int32_t injectorPid,
-                                     int32_t injectorUid, int32_t syncMode, int32_t timeoutMillis,
-                                     uint32_t policyFlags) = 0;
-
-    /* Sets the list of input windows.
-     *
-     * This method may be called on any thread (usually by the input manager).
-     */
-    virtual void setInputWindows(
-            const std::vector<sp<InputWindowHandle>>& inputWindowHandles, int32_t displayId,
-            const sp<ISetInputWindowsListener>& setInputWindowsListener = nullptr) = 0;
-
-    /* Sets the focused application on the given display.
-     *
-     * This method may be called on any thread (usually by the input manager).
-     */
-    virtual void setFocusedApplication(
-            int32_t displayId, const sp<InputApplicationHandle>& inputApplicationHandle) = 0;
-
-    /* Sets the focused display.
-     *
-     * This method may be called on any thread (usually by the input manager).
-     */
-    virtual void setFocusedDisplay(int32_t displayId) = 0;
-
-    /* Sets the input dispatching mode.
-     *
-     * This method may be called on any thread (usually by the input manager).
-     */
-    virtual void setInputDispatchMode(bool enabled, bool frozen) = 0;
-
-    /* Sets whether input event filtering is enabled.
-     * When enabled, incoming input events are sent to the policy's filterInputEvent
-     * method instead of being dispatched.  The filter is expected to use
-     * injectInputEvent to inject the events it would like to have dispatched.
-     * It should include POLICY_FLAG_FILTERED in the policy flags during injection.
-     */
-    virtual void setInputFilterEnabled(bool enabled) = 0;
-
-    /* Transfers touch focus from one window to another window.
-     *
-     * Returns true on success.  False if the window did not actually have touch focus.
-     */
-    virtual bool transferTouchFocus(const sp<IBinder>& fromToken, const sp<IBinder>& toToken) = 0;
-
-    /* Registers input channels that may be used as targets for input events.
-     *
-     * This method may be called on any thread (usually by the input manager).
-     */
-    virtual status_t registerInputChannel(const sp<InputChannel>& inputChannel,
-                                          int32_t displayId) = 0;
-
-    /* Registers input channels to be used to monitor input events.
-     *
-     * Each monitor must target a specific display and will only receive input events sent to that
-     * display. If the monitor is a gesture monitor, it will only receive pointer events on the
-     * targeted display.
-     *
-     * This method may be called on any thread (usually by the input manager).
-     */
-    virtual status_t registerInputMonitor(const sp<InputChannel>& inputChannel, int32_t displayId,
-                                          bool gestureMonitor) = 0;
-
-    /* Unregister input channels that will no longer receive input events.
-     *
-     * This method may be called on any thread (usually by the input manager).
-     */
-    virtual status_t unregisterInputChannel(const sp<InputChannel>& inputChannel) = 0;
-
-    /* Allows an input monitor steal the current pointer stream away from normal input windows.
-     *
-     * This method may be called on any thread (usually by the input manager).
-     */
-    virtual status_t pilferPointers(const sp<IBinder>& token) = 0;
-};
+class Connection;
 
 /* Dispatches events to input targets.  Some functions of the input dispatcher, such as
  * identifying input targets, are controlled by a separate policy object.
@@ -400,7 +71,7 @@ public:
  *
  *     A 'LockedInterruptible' method may called a 'Locked' method, but NOT vice-versa.
  */
-class InputDispatcher : public InputDispatcherInterface {
+class InputDispatcher : public android::InputDispatcherInterface {
 protected:
     virtual ~InputDispatcher();
 
@@ -442,376 +113,6 @@ public:
     virtual status_t pilferPointers(const sp<IBinder>& token) override;
 
 private:
-    struct InjectionState {
-        mutable int32_t refCount;
-
-        int32_t injectorPid;
-        int32_t injectorUid;
-        int32_t injectionResult; // initially INPUT_EVENT_INJECTION_PENDING
-        bool injectionIsAsync;   // set to true if injection is not waiting for the result
-        int32_t pendingForegroundDispatches; // the number of foreground dispatches in progress
-
-        InjectionState(int32_t injectorPid, int32_t injectorUid);
-        void release();
-
-    private:
-        ~InjectionState();
-    };
-
-    struct EventEntry {
-        enum { TYPE_CONFIGURATION_CHANGED, TYPE_DEVICE_RESET, TYPE_KEY, TYPE_MOTION };
-
-        uint32_t sequenceNum;
-        mutable int32_t refCount;
-        int32_t type;
-        nsecs_t eventTime;
-        uint32_t policyFlags;
-        InjectionState* injectionState;
-
-        bool dispatchInProgress; // initially false, set to true while dispatching
-
-        inline bool isInjected() const { return injectionState != nullptr; }
-
-        void release();
-
-        virtual void appendDescription(std::string& msg) const = 0;
-
-    protected:
-        EventEntry(uint32_t sequenceNum, int32_t type, nsecs_t eventTime, uint32_t policyFlags);
-        virtual ~EventEntry();
-        void releaseInjectionState();
-    };
-
-    struct ConfigurationChangedEntry : EventEntry {
-        explicit ConfigurationChangedEntry(uint32_t sequenceNum, nsecs_t eventTime);
-        virtual void appendDescription(std::string& msg) const;
-
-    protected:
-        virtual ~ConfigurationChangedEntry();
-    };
-
-    struct DeviceResetEntry : EventEntry {
-        int32_t deviceId;
-
-        DeviceResetEntry(uint32_t sequenceNum, nsecs_t eventTime, int32_t deviceId);
-        virtual void appendDescription(std::string& msg) const;
-
-    protected:
-        virtual ~DeviceResetEntry();
-    };
-
-    struct KeyEntry : EventEntry {
-        int32_t deviceId;
-        uint32_t source;
-        int32_t displayId;
-        int32_t action;
-        int32_t flags;
-        int32_t keyCode;
-        int32_t scanCode;
-        int32_t metaState;
-        int32_t repeatCount;
-        nsecs_t downTime;
-
-        bool syntheticRepeat; // set to true for synthetic key repeats
-
-        enum InterceptKeyResult {
-            INTERCEPT_KEY_RESULT_UNKNOWN,
-            INTERCEPT_KEY_RESULT_SKIP,
-            INTERCEPT_KEY_RESULT_CONTINUE,
-            INTERCEPT_KEY_RESULT_TRY_AGAIN_LATER,
-        };
-        InterceptKeyResult interceptKeyResult; // set based on the interception result
-        nsecs_t interceptKeyWakeupTime;        // used with INTERCEPT_KEY_RESULT_TRY_AGAIN_LATER
-
-        KeyEntry(uint32_t sequenceNum, nsecs_t eventTime, int32_t deviceId, uint32_t source,
-                 int32_t displayId, uint32_t policyFlags, int32_t action, int32_t flags,
-                 int32_t keyCode, int32_t scanCode, int32_t metaState, int32_t repeatCount,
-                 nsecs_t downTime);
-        virtual void appendDescription(std::string& msg) const;
-        void recycle();
-
-    protected:
-        virtual ~KeyEntry();
-    };
-
-    struct MotionEntry : EventEntry {
-        nsecs_t eventTime;
-        int32_t deviceId;
-        uint32_t source;
-        int32_t displayId;
-        int32_t action;
-        int32_t actionButton;
-        int32_t flags;
-        int32_t metaState;
-        int32_t buttonState;
-        MotionClassification classification;
-        int32_t edgeFlags;
-        float xPrecision;
-        float yPrecision;
-        float xCursorPosition;
-        float yCursorPosition;
-        nsecs_t downTime;
-        uint32_t pointerCount;
-        PointerProperties pointerProperties[MAX_POINTERS];
-        PointerCoords pointerCoords[MAX_POINTERS];
-
-        MotionEntry(uint32_t sequenceNum, nsecs_t eventTime, int32_t deviceId, uint32_t source,
-                    int32_t displayId, uint32_t policyFlags, int32_t action, int32_t actionButton,
-                    int32_t flags, int32_t metaState, int32_t buttonState,
-                    MotionClassification classification, int32_t edgeFlags, float xPrecision,
-                    float yPrecision, float xCursorPosition, float yCursorPosition,
-                    nsecs_t downTime, uint32_t pointerCount,
-                    const PointerProperties* pointerProperties, const PointerCoords* pointerCoords,
-                    float xOffset, float yOffset);
-        virtual void appendDescription(std::string& msg) const;
-
-    protected:
-        virtual ~MotionEntry();
-    };
-
-    // Tracks the progress of dispatching a particular event to a particular connection.
-    struct DispatchEntry {
-        const uint32_t seq; // unique sequence number, never 0
-
-        EventEntry* eventEntry; // the event to dispatch
-        int32_t targetFlags;
-        float xOffset;
-        float yOffset;
-        float globalScaleFactor;
-        float windowXScale = 1.0f;
-        float windowYScale = 1.0f;
-        nsecs_t deliveryTime; // time when the event was actually delivered
-
-        // Set to the resolved action and flags when the event is enqueued.
-        int32_t resolvedAction;
-        int32_t resolvedFlags;
-
-        DispatchEntry(EventEntry* eventEntry, int32_t targetFlags, float xOffset, float yOffset,
-                      float globalScaleFactor, float windowXScale, float windowYScale);
-        ~DispatchEntry();
-
-        inline bool hasForegroundTarget() const {
-            return targetFlags & InputTarget::FLAG_FOREGROUND;
-        }
-
-        inline bool isSplit() const { return targetFlags & InputTarget::FLAG_SPLIT; }
-
-    private:
-        static volatile int32_t sNextSeqAtomic;
-
-        static uint32_t nextSeq();
-    };
-
-    // A command entry captures state and behavior for an action to be performed in the
-    // dispatch loop after the initial processing has taken place.  It is essentially
-    // a kind of continuation used to postpone sensitive policy interactions to a point
-    // in the dispatch loop where it is safe to release the lock (generally after finishing
-    // the critical parts of the dispatch cycle).
-    //
-    // The special thing about commands is that they can voluntarily release and reacquire
-    // the dispatcher lock at will.  Initially when the command starts running, the
-    // dispatcher lock is held.  However, if the command needs to call into the policy to
-    // do some work, it can release the lock, do the work, then reacquire the lock again
-    // before returning.
-    //
-    // This mechanism is a bit clunky but it helps to preserve the invariant that the dispatch
-    // never calls into the policy while holding its lock.
-    //
-    // Commands are implicitly 'LockedInterruptible'.
-    struct CommandEntry;
-    typedef std::function<void(InputDispatcher&, CommandEntry*)> Command;
-
-    class Connection;
-    struct CommandEntry {
-        explicit CommandEntry(Command command);
-        ~CommandEntry();
-
-        Command command;
-
-        // parameters for the command (usage varies by command)
-        sp<Connection> connection;
-        nsecs_t eventTime;
-        KeyEntry* keyEntry;
-        sp<InputApplicationHandle> inputApplicationHandle;
-        std::string reason;
-        int32_t userActivityEventType;
-        uint32_t seq;
-        bool handled;
-        sp<InputChannel> inputChannel;
-        sp<IBinder> oldToken;
-        sp<IBinder> newToken;
-    };
-
-    /* Specifies which events are to be canceled and why. */
-    struct CancelationOptions {
-        enum Mode {
-            CANCEL_ALL_EVENTS = 0,
-            CANCEL_POINTER_EVENTS = 1,
-            CANCEL_NON_POINTER_EVENTS = 2,
-            CANCEL_FALLBACK_EVENTS = 3,
-        };
-
-        // The criterion to use to determine which events should be canceled.
-        Mode mode;
-
-        // Descriptive reason for the cancelation.
-        const char* reason;
-
-        // The specific keycode of the key event to cancel, or nullopt to cancel any key event.
-        std::optional<int32_t> keyCode = std::nullopt;
-
-        // The specific device id of events to cancel, or nullopt to cancel events from any device.
-        std::optional<int32_t> deviceId = std::nullopt;
-
-        // The specific display id of events to cancel, or nullopt to cancel events on any display.
-        std::optional<int32_t> displayId = std::nullopt;
-
-        CancelationOptions(Mode mode, const char* reason) : mode(mode), reason(reason) {}
-    };
-
-    /* Tracks dispatched key and motion event state so that cancelation events can be
-     * synthesized when events are dropped. */
-    class InputState {
-    public:
-        InputState();
-        ~InputState();
-
-        // Returns true if there is no state to be canceled.
-        bool isNeutral() const;
-
-        // Returns true if the specified source is known to have received a hover enter
-        // motion event.
-        bool isHovering(int32_t deviceId, uint32_t source, int32_t displayId) const;
-
-        // Records tracking information for a key event that has just been published.
-        // Returns true if the event should be delivered, false if it is inconsistent
-        // and should be skipped.
-        bool trackKey(const KeyEntry* entry, int32_t action, int32_t flags);
-
-        // Records tracking information for a motion event that has just been published.
-        // Returns true if the event should be delivered, false if it is inconsistent
-        // and should be skipped.
-        bool trackMotion(const MotionEntry* entry, int32_t action, int32_t flags);
-
-        // Synthesizes cancelation events for the current state and resets the tracked state.
-        void synthesizeCancelationEvents(nsecs_t currentTime, std::vector<EventEntry*>& outEvents,
-                                         const CancelationOptions& options);
-
-        // Clears the current state.
-        void clear();
-
-        // Copies pointer-related parts of the input state to another instance.
-        void copyPointerStateTo(InputState& other) const;
-
-        // Gets the fallback key associated with a keycode.
-        // Returns -1 if none.
-        // Returns AKEYCODE_UNKNOWN if we are only dispatching the unhandled key to the policy.
-        int32_t getFallbackKey(int32_t originalKeyCode);
-
-        // Sets the fallback key for a particular keycode.
-        void setFallbackKey(int32_t originalKeyCode, int32_t fallbackKeyCode);
-
-        // Removes the fallback key for a particular keycode.
-        void removeFallbackKey(int32_t originalKeyCode);
-
-        inline const KeyedVector<int32_t, int32_t>& getFallbackKeys() const {
-            return mFallbackKeys;
-        }
-
-    private:
-        struct KeyMemento {
-            int32_t deviceId;
-            uint32_t source;
-            int32_t displayId;
-            int32_t keyCode;
-            int32_t scanCode;
-            int32_t metaState;
-            int32_t flags;
-            nsecs_t downTime;
-            uint32_t policyFlags;
-        };
-
-        struct MotionMemento {
-            int32_t deviceId;
-            uint32_t source;
-            int32_t displayId;
-            int32_t flags;
-            float xPrecision;
-            float yPrecision;
-            float xCursorPosition;
-            float yCursorPosition;
-            nsecs_t downTime;
-            uint32_t pointerCount;
-            PointerProperties pointerProperties[MAX_POINTERS];
-            PointerCoords pointerCoords[MAX_POINTERS];
-            bool hovering;
-            uint32_t policyFlags;
-
-            void setPointers(const MotionEntry* entry);
-        };
-
-        std::vector<KeyMemento> mKeyMementos;
-        std::vector<MotionMemento> mMotionMementos;
-        KeyedVector<int32_t, int32_t> mFallbackKeys;
-
-        ssize_t findKeyMemento(const KeyEntry* entry) const;
-        ssize_t findMotionMemento(const MotionEntry* entry, bool hovering) const;
-
-        void addKeyMemento(const KeyEntry* entry, int32_t flags);
-        void addMotionMemento(const MotionEntry* entry, int32_t flags, bool hovering);
-
-        static bool shouldCancelKey(const KeyMemento& memento, const CancelationOptions& options);
-        static bool shouldCancelMotion(const MotionMemento& memento,
-                                       const CancelationOptions& options);
-    };
-
-    /* Manages the dispatch state associated with a single input channel. */
-    class Connection : public RefBase {
-    protected:
-        virtual ~Connection();
-
-    public:
-        enum Status {
-            // Everything is peachy.
-            STATUS_NORMAL,
-            // An unrecoverable communication error has occurred.
-            STATUS_BROKEN,
-            // The input channel has been unregistered.
-            STATUS_ZOMBIE
-        };
-
-        Status status;
-        sp<InputChannel> inputChannel; // never null
-        bool monitor;
-        InputPublisher inputPublisher;
-        InputState inputState;
-
-        // True if the socket is full and no further events can be published until
-        // the application consumes some of the input.
-        bool inputPublisherBlocked;
-
-        // Queue of events that need to be published to the connection.
-        std::deque<DispatchEntry*> outboundQueue;
-
-        // Queue of events that have been published to the connection but that have not
-        // yet received a "finished" response from the application.
-        std::deque<DispatchEntry*> waitQueue;
-
-        explicit Connection(const sp<InputChannel>& inputChannel, bool monitor);
-
-        inline const std::string getInputChannelName() const { return inputChannel->getName(); }
-
-        const std::string getWindowName() const;
-        const char* getStatusLabel() const;
-
-        std::deque<DispatchEntry*>::iterator findWaitQueueEntry(uint32_t seq);
-    };
-
-    struct Monitor {
-        sp<InputChannel> inputChannel; // never null
-
-        explicit Monitor(const sp<InputChannel>& inputChannel);
-    };
 
     enum DropReason {
         DROP_REASON_NOT_DROPPED = 0,
@@ -823,7 +124,7 @@ private:
     };
 
     sp<InputDispatcherPolicyInterface> mPolicy;
-    InputDispatcherConfiguration mConfig;
+    android::InputDispatcherConfiguration mConfig;
 
     std::mutex mLock;
 
@@ -969,53 +270,6 @@ private:
     std::unordered_map<int32_t, sp<InputWindowHandle>> mFocusedWindowHandlesByDisplay
             GUARDED_BY(mLock);
 
-    // Focus tracking for touch.
-    struct TouchedWindow {
-        sp<InputWindowHandle> windowHandle;
-        int32_t targetFlags;
-        BitSet32 pointerIds; // zero unless target flag FLAG_SPLIT is set
-    };
-
-    // For tracking the offsets we need to apply when adding gesture monitor targets.
-    struct TouchedMonitor {
-        Monitor monitor;
-        float xOffset = 0.f;
-        float yOffset = 0.f;
-
-        explicit TouchedMonitor(const Monitor& monitor, float xOffset, float yOffset);
-    };
-
-    struct TouchState {
-        bool down;
-        bool split;
-        int32_t deviceId;  // id of the device that is currently down, others are rejected
-        uint32_t source;   // source of the device that is current down, others are rejected
-        int32_t displayId; // id to the display that currently has a touch, others are rejected
-        std::vector<TouchedWindow> windows;
-
-        // This collects the portal windows that the touch has gone through. Each portal window
-        // targets a display (embedded display for most cases). With this info, we can add the
-        // monitoring channels of the displays touched.
-        std::vector<sp<InputWindowHandle>> portalWindows;
-
-        std::vector<TouchedMonitor> gestureMonitors;
-
-        TouchState();
-        ~TouchState();
-        void reset();
-        void copyFrom(const TouchState& other);
-        void addOrUpdateWindow(const sp<InputWindowHandle>& windowHandle, int32_t targetFlags,
-                               BitSet32 pointerIds);
-        void addPortalWindow(const sp<InputWindowHandle>& windowHandle);
-        void addGestureMonitors(const std::vector<TouchedMonitor>& monitors);
-        void removeWindow(const sp<InputWindowHandle>& windowHandle);
-        void removeWindowByToken(const sp<IBinder>& token);
-        void filterNonAsIsTouchWindows();
-        void filterNonMonitors();
-        sp<InputWindowHandle> getFirstForegroundWindowHandle() const;
-        bool isSlippery() const;
-    };
-
     KeyedVector<int32_t, TouchState> mTouchStatesByDisplay GUARDED_BY(mLock);
     TouchState mTempTouchState GUARDED_BY(mLock);
 
@@ -1210,18 +464,6 @@ private:
     sp<InputReporterInterface> mReporter;
 };
 
-/* Enqueues and dispatches input events, endlessly. */
-class InputDispatcherThread : public Thread {
-public:
-    explicit InputDispatcherThread(const sp<InputDispatcherInterface>& dispatcher);
-    ~InputDispatcherThread();
-
-private:
-    virtual bool threadLoop();
-
-    sp<InputDispatcherInterface> mDispatcher;
-};
-
-} // namespace android
+} // namespace android::inputdispatcher
 
 #endif // _UI_INPUT_DISPATCHER_H