michael@0: /*
michael@0:  * Copyright (C) 2010 The Android Open Source Project
michael@0:  *
michael@0:  * Licensed under the Apache License, Version 2.0 (the "License");
michael@0:  * you may not use this file except in compliance with the License.
michael@0:  * You may obtain a copy of the License at
michael@0:  *
michael@0:  *      http://www.apache.org/licenses/LICENSE-2.0
michael@0:  *
michael@0:  * Unless required by applicable law or agreed to in writing, software
michael@0:  * distributed under the License is distributed on an "AS IS" BASIS,
michael@0:  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
michael@0:  * See the License for the specific language governing permissions and
michael@0:  * limitations under the License.
michael@0:  */
michael@0: 
michael@0: #ifndef _ANDROIDFW_INPUT_H
michael@0: #define _ANDROIDFW_INPUT_H
michael@0: 
michael@0: /**
michael@0:  * Native input event structures.
michael@0:  */
michael@0: 
michael@0: #include "android_input.h"
michael@0: #include <utils/Vector.h>
michael@0: #include <utils/KeyedVector.h>
michael@0: #include <utils/Timers.h>
michael@0: #include <utils/RefBase.h>
michael@0: #include <utils/String8.h>
michael@0: 
michael@0: #ifdef HAVE_ANDROID_OS
michael@0: class SkMatrix;
michael@0: #endif
michael@0: 
michael@0: /*
michael@0:  * Additional private constants not defined in ndk/ui/input.h.
michael@0:  */
michael@0: enum {
michael@0:     /* Signifies that the key is being predispatched */
michael@0:     AKEY_EVENT_FLAG_PREDISPATCH = 0x20000000,
michael@0: 
michael@0:     /* Private control to determine when an app is tracking a key sequence. */
michael@0:     AKEY_EVENT_FLAG_START_TRACKING = 0x40000000,
michael@0: 
michael@0:     /* Key event is inconsistent with previously sent key events. */
michael@0:     AKEY_EVENT_FLAG_TAINTED = 0x80000000,
michael@0: };
michael@0: 
michael@0: enum {
michael@0:     /* Motion event is inconsistent with previously sent motion events. */
michael@0:     AMOTION_EVENT_FLAG_TAINTED = 0x80000000,
michael@0: };
michael@0: 
michael@0: enum {
michael@0:     /* Used when a motion event is not associated with any display.
michael@0:      * Typically used for non-pointer events. */
michael@0:     ADISPLAY_ID_NONE = -1,
michael@0: 
michael@0:     /* The default display id. */
michael@0:     ADISPLAY_ID_DEFAULT = 0,
michael@0: };
michael@0: 
michael@0: enum {
michael@0:     /*
michael@0:      * Indicates that an input device has switches.
michael@0:      * This input source flag is hidden from the API because switches are only used by the system
michael@0:      * and applications have no way to interact with them.
michael@0:      */
michael@0:     AINPUT_SOURCE_SWITCH = 0x80000000,
michael@0: };
michael@0: 
michael@0: /*
michael@0:  * SystemUiVisibility constants from View.
michael@0:  */
michael@0: enum {
michael@0:     ASYSTEM_UI_VISIBILITY_STATUS_BAR_VISIBLE = 0,
michael@0:     ASYSTEM_UI_VISIBILITY_STATUS_BAR_HIDDEN = 0x00000001,
michael@0: };
michael@0: 
michael@0: /*
michael@0:  * Maximum number of pointers supported per motion event.
michael@0:  * Smallest number of pointers is 1.
michael@0:  * (We want at least 10 but some touch controllers obstensibly configured for 10 pointers
michael@0:  * will occasionally emit 11.  There is not much harm making this constant bigger.)
michael@0:  */
michael@0: #define MAX_POINTERS 16
michael@0: 
michael@0: /*
michael@0:  * Maximum pointer id value supported in a motion event.
michael@0:  * Smallest pointer id is 0.
michael@0:  * (This is limited by our use of BitSet32 to track pointer assignments.)
michael@0:  */
michael@0: #define MAX_POINTER_ID 31
michael@0: 
michael@0: /*
michael@0:  * Declare a concrete type for the NDK's input event forward declaration.
michael@0:  */
michael@0: struct AInputEvent {
michael@0:     virtual ~AInputEvent() { }
michael@0: };
michael@0: 
michael@0: /*
michael@0:  * Declare a concrete type for the NDK's input device forward declaration.
michael@0:  */
michael@0: struct AInputDevice {
michael@0:     virtual ~AInputDevice() { }
michael@0: };
michael@0: 
michael@0: 
michael@0: namespace android {
michael@0: 
michael@0: #ifdef HAVE_ANDROID_OS
michael@0: class Parcel;
michael@0: #endif
michael@0: 
michael@0: /*
michael@0:  * Flags that flow alongside events in the input dispatch system to help with certain
michael@0:  * policy decisions such as waking from device sleep.
michael@0:  *
michael@0:  * These flags are also defined in frameworks/base/core/java/android/view/WindowManagerPolicy.java.
michael@0:  */
michael@0: enum {
michael@0:     /* These flags originate in RawEvents and are generally set in the key map.
michael@0:      * NOTE: If you edit these flags, also edit labels in KeycodeLabels.h. */
michael@0: 
michael@0:     POLICY_FLAG_WAKE = 0x00000001,
michael@0:     POLICY_FLAG_WAKE_DROPPED = 0x00000002,
michael@0:     POLICY_FLAG_SHIFT = 0x00000004,
michael@0:     POLICY_FLAG_CAPS_LOCK = 0x00000008,
michael@0:     POLICY_FLAG_ALT = 0x00000010,
michael@0:     POLICY_FLAG_ALT_GR = 0x00000020,
michael@0:     POLICY_FLAG_MENU = 0x00000040,
michael@0:     POLICY_FLAG_LAUNCHER = 0x00000080,
michael@0:     POLICY_FLAG_VIRTUAL = 0x00000100,
michael@0:     POLICY_FLAG_FUNCTION = 0x00000200,
michael@0: 
michael@0:     POLICY_FLAG_RAW_MASK = 0x0000ffff,
michael@0: 
michael@0:     /* These flags are set by the input dispatcher. */
michael@0: 
michael@0:     // Indicates that the input event was injected.
michael@0:     POLICY_FLAG_INJECTED = 0x01000000,
michael@0: 
michael@0:     // Indicates that the input event is from a trusted source such as a directly attached
michael@0:     // input device or an application with system-wide event injection permission.
michael@0:     POLICY_FLAG_TRUSTED = 0x02000000,
michael@0: 
michael@0:     // Indicates that the input event has passed through an input filter.
michael@0:     POLICY_FLAG_FILTERED = 0x04000000,
michael@0: 
michael@0:     // Disables automatic key repeating behavior.
michael@0:     POLICY_FLAG_DISABLE_KEY_REPEAT = 0x08000000,
michael@0: 
michael@0:     /* These flags are set by the input reader policy as it intercepts each event. */
michael@0: 
michael@0:     // Indicates that the screen was off when the event was received and the event
michael@0:     // should wake the device.
michael@0:     POLICY_FLAG_WOKE_HERE = 0x10000000,
michael@0: 
michael@0:     // Indicates that the screen was dim when the event was received and the event
michael@0:     // should brighten the device.
michael@0:     POLICY_FLAG_BRIGHT_HERE = 0x20000000,
michael@0: 
michael@0:     // Indicates that the event should be dispatched to applications.
michael@0:     // The input event should still be sent to the InputDispatcher so that it can see all
michael@0:     // input events received include those that it will not deliver.
michael@0:     POLICY_FLAG_PASS_TO_USER = 0x40000000,
michael@0: };
michael@0: 
michael@0: /*
michael@0:  * Pointer coordinate data.
michael@0:  */
michael@0: struct PointerCoords {
michael@0:     enum { MAX_AXES = 14 }; // 14 so that sizeof(PointerCoords) == 64
michael@0: 
michael@0:     // Bitfield of axes that are present in this structure.
michael@0:     uint64_t bits;
michael@0: 
michael@0:     // Values of axes that are stored in this structure packed in order by axis id
michael@0:     // for each axis that is present in the structure according to 'bits'.
michael@0:     float values[MAX_AXES];
michael@0: 
michael@0:     inline void clear() {
michael@0:         bits = 0;
michael@0:     }
michael@0: 
michael@0:     float getAxisValue(int32_t axis) const;
michael@0:     status_t setAxisValue(int32_t axis, float value);
michael@0: 
michael@0:     void scale(float scale);
michael@0: 
michael@0:     inline float getX() const {
michael@0:         return getAxisValue(AMOTION_EVENT_AXIS_X);
michael@0:     }
michael@0: 
michael@0:     inline float getY() const {
michael@0:         return getAxisValue(AMOTION_EVENT_AXIS_Y);
michael@0:     }
michael@0: 
michael@0: #ifdef HAVE_ANDROID_OS
michael@0:     status_t readFromParcel(Parcel* parcel);
michael@0:     status_t writeToParcel(Parcel* parcel) const;
michael@0: #endif
michael@0: 
michael@0:     bool operator==(const PointerCoords& other) const;
michael@0:     inline bool operator!=(const PointerCoords& other) const {
michael@0:         return !(*this == other);
michael@0:     }
michael@0: 
michael@0:     void copyFrom(const PointerCoords& other);
michael@0: 
michael@0: private:
michael@0:     void tooManyAxes(int axis);
michael@0: };
michael@0: 
michael@0: /*
michael@0:  * Pointer property data.
michael@0:  */
michael@0: struct PointerProperties {
michael@0:     // The id of the pointer.
michael@0:     int32_t id;
michael@0: 
michael@0:     // The pointer tool type.
michael@0:     int32_t toolType;
michael@0: 
michael@0:     inline void clear() {
michael@0:         id = -1;
michael@0:         toolType = 0;
michael@0:     }
michael@0: 
michael@0:     bool operator==(const PointerProperties& other) const;
michael@0:     inline bool operator!=(const PointerProperties& other) const {
michael@0:         return !(*this == other);
michael@0:     }
michael@0: 
michael@0:     void copyFrom(const PointerProperties& other);
michael@0: };
michael@0: 
michael@0: /*
michael@0:  * Input events.
michael@0:  */
michael@0: class InputEvent : public AInputEvent {
michael@0: public:
michael@0:     virtual ~InputEvent() { }
michael@0: 
michael@0:     virtual int32_t getType() const = 0;
michael@0: 
michael@0:     inline int32_t getDeviceId() const { return mDeviceId; }
michael@0: 
michael@0:     inline int32_t getSource() const { return mSource; }
michael@0: 
michael@0:     inline void setSource(int32_t source) { mSource = source; }
michael@0: 
michael@0: protected:
michael@0:     void initialize(int32_t deviceId, int32_t source);
michael@0:     void initialize(const InputEvent& from);
michael@0: 
michael@0:     int32_t mDeviceId;
michael@0:     int32_t mSource;
michael@0: };
michael@0: 
michael@0: /*
michael@0:  * Key events.
michael@0:  */
michael@0: class KeyEvent : public InputEvent {
michael@0: public:
michael@0:     virtual ~KeyEvent() { }
michael@0: 
michael@0:     virtual int32_t getType() const { return AINPUT_EVENT_TYPE_KEY; }
michael@0: 
michael@0:     inline int32_t getAction() const { return mAction; }
michael@0: 
michael@0:     inline int32_t getFlags() const { return mFlags; }
michael@0: 
michael@0:     inline void setFlags(int32_t flags) { mFlags = flags; }
michael@0: 
michael@0:     inline int32_t getKeyCode() const { return mKeyCode; }
michael@0: 
michael@0:     inline int32_t getScanCode() const { return mScanCode; }
michael@0: 
michael@0:     inline int32_t getMetaState() const { return mMetaState; }
michael@0: 
michael@0:     inline int32_t getRepeatCount() const { return mRepeatCount; }
michael@0: 
michael@0:     inline nsecs_t getDownTime() const { return mDownTime; }
michael@0: 
michael@0:     inline nsecs_t getEventTime() const { return mEventTime; }
michael@0: 
michael@0:     // Return true if this event may have a default action implementation.
michael@0:     static bool hasDefaultAction(int32_t keyCode);
michael@0:     bool hasDefaultAction() const;
michael@0: 
michael@0:     // Return true if this event represents a system key.
michael@0:     static bool isSystemKey(int32_t keyCode);
michael@0:     bool isSystemKey() const;
michael@0:     
michael@0:     void initialize(
michael@0:             int32_t deviceId,
michael@0:             int32_t source,
michael@0:             int32_t action,
michael@0:             int32_t flags,
michael@0:             int32_t keyCode,
michael@0:             int32_t scanCode,
michael@0:             int32_t metaState,
michael@0:             int32_t repeatCount,
michael@0:             nsecs_t downTime,
michael@0:             nsecs_t eventTime);
michael@0:     void initialize(const KeyEvent& from);
michael@0: 
michael@0: protected:
michael@0:     int32_t mAction;
michael@0:     int32_t mFlags;
michael@0:     int32_t mKeyCode;
michael@0:     int32_t mScanCode;
michael@0:     int32_t mMetaState;
michael@0:     int32_t mRepeatCount;
michael@0:     nsecs_t mDownTime;
michael@0:     nsecs_t mEventTime;
michael@0: };
michael@0: 
michael@0: /*
michael@0:  * Motion events.
michael@0:  */
michael@0: class MotionEvent : public InputEvent {
michael@0: public:
michael@0:     virtual ~MotionEvent() { }
michael@0: 
michael@0:     virtual int32_t getType() const { return AINPUT_EVENT_TYPE_MOTION; }
michael@0: 
michael@0:     inline int32_t getAction() const { return mAction; }
michael@0: 
michael@0:     inline int32_t getActionMasked() const { return mAction & AMOTION_EVENT_ACTION_MASK; }
michael@0: 
michael@0:     inline int32_t getActionIndex() const {
michael@0:         return (mAction & AMOTION_EVENT_ACTION_POINTER_INDEX_MASK)
michael@0:                 >> AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT;
michael@0:     }
michael@0: 
michael@0:     inline void setAction(int32_t action) { mAction = action; }
michael@0: 
michael@0:     inline int32_t getFlags() const { return mFlags; }
michael@0: 
michael@0:     inline void setFlags(int32_t flags) { mFlags = flags; }
michael@0: 
michael@0:     inline int32_t getEdgeFlags() const { return mEdgeFlags; }
michael@0: 
michael@0:     inline void setEdgeFlags(int32_t edgeFlags) { mEdgeFlags = edgeFlags; }
michael@0: 
michael@0:     inline int32_t getMetaState() const { return mMetaState; }
michael@0: 
michael@0:     inline void setMetaState(int32_t metaState) { mMetaState = metaState; }
michael@0: 
michael@0:     inline int32_t getButtonState() const { return mButtonState; }
michael@0: 
michael@0:     inline float getXOffset() const { return mXOffset; }
michael@0: 
michael@0:     inline float getYOffset() const { return mYOffset; }
michael@0: 
michael@0:     inline float getXPrecision() const { return mXPrecision; }
michael@0: 
michael@0:     inline float getYPrecision() const { return mYPrecision; }
michael@0: 
michael@0:     inline nsecs_t getDownTime() const { return mDownTime; }
michael@0: 
michael@0:     inline void setDownTime(nsecs_t downTime) { mDownTime = downTime; }
michael@0: 
michael@0:     inline size_t getPointerCount() const { return mPointerProperties.size(); }
michael@0: 
michael@0:     inline const PointerProperties* getPointerProperties(size_t pointerIndex) const {
michael@0:         return &mPointerProperties[pointerIndex];
michael@0:     }
michael@0: 
michael@0:     inline int32_t getPointerId(size_t pointerIndex) const {
michael@0:         return mPointerProperties[pointerIndex].id;
michael@0:     }
michael@0: 
michael@0:     inline int32_t getToolType(size_t pointerIndex) const {
michael@0:         return mPointerProperties[pointerIndex].toolType;
michael@0:     }
michael@0: 
michael@0:     inline nsecs_t getEventTime() const { return mSampleEventTimes[getHistorySize()]; }
michael@0: 
michael@0:     const PointerCoords* getRawPointerCoords(size_t pointerIndex) const;
michael@0: 
michael@0:     float getRawAxisValue(int32_t axis, size_t pointerIndex) const;
michael@0: 
michael@0:     inline float getRawX(size_t pointerIndex) const {
michael@0:         return getRawAxisValue(AMOTION_EVENT_AXIS_X, pointerIndex);
michael@0:     }
michael@0: 
michael@0:     inline float getRawY(size_t pointerIndex) const {
michael@0:         return getRawAxisValue(AMOTION_EVENT_AXIS_Y, pointerIndex);
michael@0:     }
michael@0: 
michael@0:     float getAxisValue(int32_t axis, size_t pointerIndex) const;
michael@0: 
michael@0:     inline float getX(size_t pointerIndex) const {
michael@0:         return getAxisValue(AMOTION_EVENT_AXIS_X, pointerIndex);
michael@0:     }
michael@0: 
michael@0:     inline float getY(size_t pointerIndex) const {
michael@0:         return getAxisValue(AMOTION_EVENT_AXIS_Y, pointerIndex);
michael@0:     }
michael@0: 
michael@0:     inline float getPressure(size_t pointerIndex) const {
michael@0:         return getAxisValue(AMOTION_EVENT_AXIS_PRESSURE, pointerIndex);
michael@0:     }
michael@0: 
michael@0:     inline float getSize(size_t pointerIndex) const {
michael@0:         return getAxisValue(AMOTION_EVENT_AXIS_SIZE, pointerIndex);
michael@0:     }
michael@0: 
michael@0:     inline float getTouchMajor(size_t pointerIndex) const {
michael@0:         return getAxisValue(AMOTION_EVENT_AXIS_TOUCH_MAJOR, pointerIndex);
michael@0:     }
michael@0: 
michael@0:     inline float getTouchMinor(size_t pointerIndex) const {
michael@0:         return getAxisValue(AMOTION_EVENT_AXIS_TOUCH_MINOR, pointerIndex);
michael@0:     }
michael@0: 
michael@0:     inline float getToolMajor(size_t pointerIndex) const {
michael@0:         return getAxisValue(AMOTION_EVENT_AXIS_TOOL_MAJOR, pointerIndex);
michael@0:     }
michael@0: 
michael@0:     inline float getToolMinor(size_t pointerIndex) const {
michael@0:         return getAxisValue(AMOTION_EVENT_AXIS_TOOL_MINOR, pointerIndex);
michael@0:     }
michael@0: 
michael@0:     inline float getOrientation(size_t pointerIndex) const {
michael@0:         return getAxisValue(AMOTION_EVENT_AXIS_ORIENTATION, pointerIndex);
michael@0:     }
michael@0: 
michael@0:     inline size_t getHistorySize() const { return mSampleEventTimes.size() - 1; }
michael@0: 
michael@0:     inline nsecs_t getHistoricalEventTime(size_t historicalIndex) const {
michael@0:         return mSampleEventTimes[historicalIndex];
michael@0:     }
michael@0: 
michael@0:     const PointerCoords* getHistoricalRawPointerCoords(
michael@0:             size_t pointerIndex, size_t historicalIndex) const;
michael@0: 
michael@0:     float getHistoricalRawAxisValue(int32_t axis, size_t pointerIndex,
michael@0:             size_t historicalIndex) const;
michael@0: 
michael@0:     inline float getHistoricalRawX(size_t pointerIndex, size_t historicalIndex) const {
michael@0:         return getHistoricalRawAxisValue(
michael@0:                 AMOTION_EVENT_AXIS_X, pointerIndex, historicalIndex);
michael@0:     }
michael@0: 
michael@0:     inline float getHistoricalRawY(size_t pointerIndex, size_t historicalIndex) const {
michael@0:         return getHistoricalRawAxisValue(
michael@0:                 AMOTION_EVENT_AXIS_Y, pointerIndex, historicalIndex);
michael@0:     }
michael@0: 
michael@0:     float getHistoricalAxisValue(int32_t axis, size_t pointerIndex, size_t historicalIndex) const;
michael@0: 
michael@0:     inline float getHistoricalX(size_t pointerIndex, size_t historicalIndex) const {
michael@0:         return getHistoricalAxisValue(
michael@0:                 AMOTION_EVENT_AXIS_X, pointerIndex, historicalIndex);
michael@0:     }
michael@0: 
michael@0:     inline float getHistoricalY(size_t pointerIndex, size_t historicalIndex) const {
michael@0:         return getHistoricalAxisValue(
michael@0:                 AMOTION_EVENT_AXIS_Y, pointerIndex, historicalIndex);
michael@0:     }
michael@0: 
michael@0:     inline float getHistoricalPressure(size_t pointerIndex, size_t historicalIndex) const {
michael@0:         return getHistoricalAxisValue(
michael@0:                 AMOTION_EVENT_AXIS_PRESSURE, pointerIndex, historicalIndex);
michael@0:     }
michael@0: 
michael@0:     inline float getHistoricalSize(size_t pointerIndex, size_t historicalIndex) const {
michael@0:         return getHistoricalAxisValue(
michael@0:                 AMOTION_EVENT_AXIS_SIZE, pointerIndex, historicalIndex);
michael@0:     }
michael@0: 
michael@0:     inline float getHistoricalTouchMajor(size_t pointerIndex, size_t historicalIndex) const {
michael@0:         return getHistoricalAxisValue(
michael@0:                 AMOTION_EVENT_AXIS_TOUCH_MAJOR, pointerIndex, historicalIndex);
michael@0:     }
michael@0: 
michael@0:     inline float getHistoricalTouchMinor(size_t pointerIndex, size_t historicalIndex) const {
michael@0:         return getHistoricalAxisValue(
michael@0:                 AMOTION_EVENT_AXIS_TOUCH_MINOR, pointerIndex, historicalIndex);
michael@0:     }
michael@0: 
michael@0:     inline float getHistoricalToolMajor(size_t pointerIndex, size_t historicalIndex) const {
michael@0:         return getHistoricalAxisValue(
michael@0:                 AMOTION_EVENT_AXIS_TOOL_MAJOR, pointerIndex, historicalIndex);
michael@0:     }
michael@0: 
michael@0:     inline float getHistoricalToolMinor(size_t pointerIndex, size_t historicalIndex) const {
michael@0:         return getHistoricalAxisValue(
michael@0:                 AMOTION_EVENT_AXIS_TOOL_MINOR, pointerIndex, historicalIndex);
michael@0:     }
michael@0: 
michael@0:     inline float getHistoricalOrientation(size_t pointerIndex, size_t historicalIndex) const {
michael@0:         return getHistoricalAxisValue(
michael@0:                 AMOTION_EVENT_AXIS_ORIENTATION, pointerIndex, historicalIndex);
michael@0:     }
michael@0: 
michael@0:     ssize_t findPointerIndex(int32_t pointerId) const;
michael@0: 
michael@0:     void initialize(
michael@0:             int32_t deviceId,
michael@0:             int32_t source,
michael@0:             int32_t action,
michael@0:             int32_t flags,
michael@0:             int32_t edgeFlags,
michael@0:             int32_t metaState,
michael@0:             int32_t buttonState,
michael@0:             float xOffset,
michael@0:             float yOffset,
michael@0:             float xPrecision,
michael@0:             float yPrecision,
michael@0:             nsecs_t downTime,
michael@0:             nsecs_t eventTime,
michael@0:             size_t pointerCount,
michael@0:             const PointerProperties* pointerProperties,
michael@0:             const PointerCoords* pointerCoords);
michael@0: 
michael@0:     void copyFrom(const MotionEvent* other, bool keepHistory);
michael@0: 
michael@0:     void addSample(
michael@0:             nsecs_t eventTime,
michael@0:             const PointerCoords* pointerCoords);
michael@0: 
michael@0:     void offsetLocation(float xOffset, float yOffset);
michael@0: 
michael@0:     void scale(float scaleFactor);
michael@0: 
michael@0: #ifdef HAVE_ANDROID_OS
michael@0:     void transform(const SkMatrix* matrix);
michael@0: 
michael@0:     status_t readFromParcel(Parcel* parcel);
michael@0:     status_t writeToParcel(Parcel* parcel) const;
michael@0: #endif
michael@0: 
michael@0:     static bool isTouchEvent(int32_t source, int32_t action);
michael@0:     inline bool isTouchEvent() const {
michael@0:         return isTouchEvent(mSource, mAction);
michael@0:     }
michael@0: 
michael@0:     // Low-level accessors.
michael@0:     inline const PointerProperties* getPointerProperties() const {
michael@0:         return mPointerProperties.array();
michael@0:     }
michael@0:     inline const nsecs_t* getSampleEventTimes() const { return mSampleEventTimes.array(); }
michael@0:     inline const PointerCoords* getSamplePointerCoords() const {
michael@0:             return mSamplePointerCoords.array();
michael@0:     }
michael@0: 
michael@0: protected:
michael@0:     int32_t mAction;
michael@0:     int32_t mFlags;
michael@0:     int32_t mEdgeFlags;
michael@0:     int32_t mMetaState;
michael@0:     int32_t mButtonState;
michael@0:     float mXOffset;
michael@0:     float mYOffset;
michael@0:     float mXPrecision;
michael@0:     float mYPrecision;
michael@0:     nsecs_t mDownTime;
michael@0:     Vector<PointerProperties> mPointerProperties;
michael@0:     Vector<nsecs_t> mSampleEventTimes;
michael@0:     Vector<PointerCoords> mSamplePointerCoords;
michael@0: };
michael@0: 
michael@0: /*
michael@0:  * Input event factory.
michael@0:  */
michael@0: class InputEventFactoryInterface {
michael@0: protected:
michael@0:     virtual ~InputEventFactoryInterface() { }
michael@0: 
michael@0: public:
michael@0:     InputEventFactoryInterface() { }
michael@0: 
michael@0:     virtual KeyEvent* createKeyEvent() = 0;
michael@0:     virtual MotionEvent* createMotionEvent() = 0;
michael@0: };
michael@0: 
michael@0: /*
michael@0:  * A simple input event factory implementation that uses a single preallocated instance
michael@0:  * of each type of input event that are reused for each request.
michael@0:  */
michael@0: class PreallocatedInputEventFactory : public InputEventFactoryInterface {
michael@0: public:
michael@0:     PreallocatedInputEventFactory() { }
michael@0:     virtual ~PreallocatedInputEventFactory() { }
michael@0: 
michael@0:     virtual KeyEvent* createKeyEvent() { return & mKeyEvent; }
michael@0:     virtual MotionEvent* createMotionEvent() { return & mMotionEvent; }
michael@0: 
michael@0: private:
michael@0:     KeyEvent mKeyEvent;
michael@0:     MotionEvent mMotionEvent;
michael@0: };
michael@0: 
michael@0: /*
michael@0:  * An input event factory implementation that maintains a pool of input events.
michael@0:  */
michael@0: class PooledInputEventFactory : public InputEventFactoryInterface {
michael@0: public:
michael@0:     PooledInputEventFactory(size_t maxPoolSize = 20);
michael@0:     virtual ~PooledInputEventFactory();
michael@0: 
michael@0:     virtual KeyEvent* createKeyEvent();
michael@0:     virtual MotionEvent* createMotionEvent();
michael@0: 
michael@0:     void recycle(InputEvent* event);
michael@0: 
michael@0: private:
michael@0:     const size_t mMaxPoolSize;
michael@0: 
michael@0:     Vector<KeyEvent*> mKeyEventPool;
michael@0:     Vector<MotionEvent*> mMotionEventPool;
michael@0: };
michael@0: 
michael@0: } // namespace android
michael@0: 
michael@0: #endif // _ANDROIDFW_INPUT_H