Merge "Test coordinates of ACTION_OUTSIDE events"

#include <sys/epoll.h>

#include <cinttypes>

#include <compare>

#include <thread>

#include <unordered_set>

#include <vector>

static constexpr int32_t DISPLAY_ID = ADISPLAY_ID_DEFAULT;

static constexpr int32_t SECOND_DISPLAY_ID = 1;

static constexpr int32_t ACTION_OUTSIDE = AMOTION_EVENT_ACTION_OUTSIDE;

static constexpr int32_t POINTER_1_DOWN =

        AMOTION_EVENT_ACTION_POINTER_DOWN | (1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT);

static constexpr int32_t POINTER_2_DOWN =

struct PointF {

    float x;

    float y;

    auto operator<=>(const PointF&) const = default;

};

/**

    return arg.getSource() == source;

}

MATCHER_P2(WithCoords, x, y, "MotionEvent with specified coordinates") {

    if (arg.getPointerCount() != 1) {

        *result_listener << "Expected 1 pointer, got " << arg.getPointerCount();

        return false;

    }

    return arg.getX(0 /*pointerIndex*/) == x && arg.getY(0 /*pointerIndex*/) == y;

}

MATCHER_P(WithPointers, pointers, "MotionEvent with specified pointers") {

    // Build a map for the received pointers, by pointer id

    std::map<int32_t /*pointerId*/, PointF> actualPointers;

    for (size_t pointerIndex = 0; pointerIndex < arg.getPointerCount(); pointerIndex++) {

        const int32_t pointerId = arg.getPointerId(pointerIndex);

        actualPointers[pointerId] = {arg.getX(pointerIndex), arg.getY(pointerIndex)};

    }

    return pointers == actualPointers;

}

// --- FakeInputDispatcherPolicy ---

class FakeInputDispatcherPolicy : public InputDispatcherPolicyInterface {

    window->consumeKeyUp(ADISPLAY_ID_DEFAULT);

}

/**

 * Two windows. First is a regular window. Second does not overlap with the first, and has

 * WATCH_OUTSIDE_TOUCH.

 * Both windows are owned by the same UID.

 * Tap first window. Make sure that the second window receives ACTION_OUTSIDE with correct, non-zero

 * coordinates. The coordinates are not zeroed out because both windows are owned by the same UID.

 */

TEST_F(InputDispatcherTest, ActionOutsideForOwnedWindowHasValidCoordinates) {

    std::shared_ptr<FakeApplicationHandle> application = std::make_shared<FakeApplicationHandle>();

    sp<FakeWindowHandle> window = sp<FakeWindowHandle>::make(application, mDispatcher,

                                                             "First Window", ADISPLAY_ID_DEFAULT);

    window->setFrame(Rect{0, 0, 100, 100});

    sp<FakeWindowHandle> outsideWindow =

            sp<FakeWindowHandle>::make(application, mDispatcher, "Second Window",

                                       ADISPLAY_ID_DEFAULT);

    outsideWindow->setFrame(Rect{100, 100, 200, 200});

    outsideWindow->setWatchOutsideTouch(true);

    // outsideWindow must be above 'window' to receive ACTION_OUTSIDE events when 'window' is tapped

    mDispatcher->setInputWindows({{ADISPLAY_ID_DEFAULT, {outsideWindow, window}}});

    // Tap on first window.

    NotifyMotionArgs motionArgs =

            generateMotionArgs(AMOTION_EVENT_ACTION_DOWN, AINPUT_SOURCE_TOUCHSCREEN,

                               ADISPLAY_ID_DEFAULT, {PointF{50, 50}});

    mDispatcher->notifyMotion(&motionArgs);

    window->consumeMotionDown();

    // The coordinates of the tap in 'outsideWindow' are relative to its top left corner.

    // Therefore, we should offset them by (100, 100) relative to the screen's top left corner.

    outsideWindow->consumeMotionEvent(

            AllOf(WithMotionAction(ACTION_OUTSIDE), WithCoords(-50, -50)));

}

/**

 * This test documents the behavior of WATCH_OUTSIDE_TOUCH. The window will get ACTION_OUTSIDE when

 * a another pointer causes ACTION_DOWN to be sent to another window for the first time. Only one

    motionArgs = generateMotionArgs(POINTER_1_DOWN, AINPUT_SOURCE_TOUCHSCREEN, ADISPLAY_ID_DEFAULT,

                                    {PointF{-10, -10}, PointF{105, 105}});

    mDispatcher->notifyMotion(&motionArgs);

    window->consumeMotionOutside();

    const std::map<int32_t, PointF> expectedPointers{{0, PointF{-10, -10}}, {1, PointF{105, 105}}};

    window->consumeMotionEvent(

            AllOf(WithMotionAction(ACTION_OUTSIDE), WithPointers(expectedPointers)));

    secondWindow->consumeMotionDown();

    thirdWindow->assertNoEvents();