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Commit b9113f64 authored by TreeHugger Robot's avatar TreeHugger Robot Committed by Automerger Merge Worker
Browse files

Merge "Validate indices when requesting PointerCoords" into tm-dev am: 9bc73302 

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/18607499



Change-Id: I12f0041582f1e0285f0cd9f592599a9b2ec8b94d
Signed-off-by: default avatarAutomerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
parents 32c86866 9bc73302

include/input/Input.h

+2 −0
Original line number Diff line number Diff line
@@ -837,6 +837,8 @@ protected: 
    std::vector<PointerCoords> mSamplePointerCoords;

};



std::ostream& operator<<(std::ostream& out, const MotionEvent& event);



/*

 * Focus events.

 */

libs/input/Input.cpp

+69 −2
Original line number Diff line number Diff line
@@ -22,7 +22,9 @@ 
#include <inttypes.h>

#include <string.h>



#include <android-base/logging.h>

#include <android-base/stringprintf.h>

#include <cutils/compiler.h>

#include <gui/constants.h>

#include <input/DisplayViewport.h>

#include <input/Input.h>
@@ -542,7 +544,14 @@ void MotionEvent::setCursorPosition(float x, float y) { 
}



const PointerCoords* MotionEvent::getRawPointerCoords(size_t pointerIndex) const {

    return &mSamplePointerCoords[getHistorySize() * getPointerCount() + pointerIndex];

    if (CC_UNLIKELY(pointerIndex < 0 || pointerIndex >= getPointerCount())) {

        LOG(FATAL) << __func__ << ": Invalid pointer index " << pointerIndex << " for " << *this;

    }

    const size_t position = getHistorySize() * getPointerCount() + pointerIndex;

    if (CC_UNLIKELY(position < 0 || position >= mSamplePointerCoords.size())) {

        LOG(FATAL) << __func__ << ": Invalid array index " << position << " for " << *this;

    }

    return &mSamplePointerCoords[position];

}



float MotionEvent::getRawAxisValue(int32_t axis, size_t pointerIndex) const {
@@ -555,7 +564,18 @@ float MotionEvent::getAxisValue(int32_t axis, size_t pointerIndex) const { 


const PointerCoords* MotionEvent::getHistoricalRawPointerCoords(

        size_t pointerIndex, size_t historicalIndex) const {

    return &mSamplePointerCoords[historicalIndex * getPointerCount() + pointerIndex];

    if (CC_UNLIKELY(pointerIndex < 0 || pointerIndex >= getPointerCount())) {

        LOG(FATAL) << __func__ << ": Invalid pointer index " << pointerIndex << " for " << *this;

    }

    if (CC_UNLIKELY(historicalIndex < 0 || historicalIndex > getHistorySize())) {

        LOG(FATAL) << __func__ << ": Invalid historical index " << historicalIndex << " for "

                   << *this;

    }

    const size_t position = historicalIndex * getPointerCount() + pointerIndex;

    if (CC_UNLIKELY(position < 0 || position >= mSamplePointerCoords.size())) {

        LOG(FATAL) << __func__ << ": Invalid array index " << position << " for " << *this;

    }

    return &mSamplePointerCoords[position];

}



float MotionEvent::getHistoricalRawAxisValue(int32_t axis, size_t pointerIndex,
@@ -903,6 +923,53 @@ PointerCoords MotionEvent::calculateTransformedCoords(uint32_t source, 
    return out;

}



std::ostream& operator<<(std::ostream& out, const MotionEvent& event) {

    out << "MotionEvent { action=" << MotionEvent::actionToString(event.getAction());

    if (event.getActionButton() != 0) {

        out << ", actionButton=" << std::to_string(event.getActionButton());

    }

    const size_t pointerCount = event.getPointerCount();

    for (size_t i = 0; i < pointerCount; i++) {

        out << ", id[" << i << "]=" << event.getPointerId(i);

        float x = event.getX(i);

        float y = event.getY(i);

        if (x != 0 || y != 0) {

            out << ", x[" << i << "]=" << x;

            out << ", y[" << i << "]=" << y;

        }

        int toolType = event.getToolType(i);

        if (toolType != AMOTION_EVENT_TOOL_TYPE_FINGER) {

            out << ", toolType[" << i << "]=" << toolType;

        }

    }

    if (event.getButtonState() != 0) {

        out << ", buttonState=" << event.getButtonState();

    }

    if (event.getClassification() != MotionClassification::NONE) {

        out << ", classification=" << motionClassificationToString(event.getClassification());

    }

    if (event.getMetaState() != 0) {

        out << ", metaState=" << event.getMetaState();

    }

    if (event.getEdgeFlags() != 0) {

        out << ", edgeFlags=" << event.getEdgeFlags();

    }

    if (pointerCount != 1) {

        out << ", pointerCount=" << pointerCount;

    }

    if (event.getHistorySize() != 0) {

        out << ", historySize=" << event.getHistorySize();

    }

    out << ", eventTime=" << event.getEventTime();

    out << ", downTime=" << event.getDownTime();

    out << ", deviceId=" << event.getDeviceId();

    out << ", source=" << inputEventSourceToString(event.getSource());

    out << ", displayId=" << event.getDisplayId();

    out << ", eventId=" << event.getId();

    out << "}";

    return out;

}



// --- FocusEvent ---



void FocusEvent::initialize(int32_t id, bool hasFocus) {