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-rw-r--r--services/inputflinger/dispatcher/InputDispatcher.cpp33
-rw-r--r--services/inputflinger/dispatcher/InputDispatcher.h1
-rw-r--r--services/inputflinger/tests/InputDispatcher_test.cpp86
3 files changed, 109 insertions, 11 deletions
diff --git a/services/inputflinger/dispatcher/InputDispatcher.cpp b/services/inputflinger/dispatcher/InputDispatcher.cpp
index ac736665bf..b9cb4ad8a9 100644
--- a/services/inputflinger/dispatcher/InputDispatcher.cpp
+++ b/services/inputflinger/dispatcher/InputDispatcher.cpp
@@ -107,6 +107,8 @@ constexpr int LOGTAG_INPUT_INTERACTION = 62000;
constexpr int LOGTAG_INPUT_FOCUS = 62001;
constexpr int LOGTAG_INPUT_CANCEL = 62003;
+const ui::Transform kIdentityTransform;
+
inline nsecs_t now() {
return systemTime(SYSTEM_TIME_MONOTONIC);
}
@@ -460,7 +462,7 @@ bool isUserActivityEvent(const EventEntry& eventEntry) {
// Returns true if the given window can accept pointer events at the given display location.
bool windowAcceptsTouchAt(const WindowInfo& windowInfo, int32_t displayId, float x, float y,
- bool isStylus) {
+ bool isStylus, const ui::Transform& displayTransform) {
const auto inputConfig = windowInfo.inputConfig;
if (windowInfo.displayId != displayId ||
inputConfig.test(WindowInfo::InputConfig::NOT_VISIBLE)) {
@@ -470,7 +472,17 @@ bool windowAcceptsTouchAt(const WindowInfo& windowInfo, int32_t displayId, float
if (inputConfig.test(WindowInfo::InputConfig::NOT_TOUCHABLE) && !windowCanInterceptTouch) {
return false;
}
- if (!windowInfo.touchableRegionContainsPoint(x, y)) {
+
+ // Window Manager works in the logical display coordinate space. When it specifies bounds for a
+ // window as (l, t, r, b), the range of x in [l, r) and y in [t, b) are considered to be inside
+ // the window. Points on the right and bottom edges should not be inside the window, so we need
+ // to be careful about performing a hit test when the display is rotated, since the "right" and
+ // "bottom" of the window will be different in the display (un-rotated) space compared to in the
+ // logical display in which WM determined the bounds. Perform the hit test in the logical
+ // display space to ensure these edges are considered correctly in all orientations.
+ const auto touchableRegion = displayTransform.transform(windowInfo.touchableRegion);
+ const auto p = displayTransform.transform(x, y);
+ if (!touchableRegion.contains(std::floor(p.x), std::floor(p.y))) {
return false;
}
return true;
@@ -1072,7 +1084,8 @@ sp<WindowInfoHandle> InputDispatcher::findTouchedWindowAtLocked(int32_t displayI
}
const WindowInfo& info = *windowHandle->getInfo();
- if (!info.isSpy() && windowAcceptsTouchAt(info, displayId, x, y, isStylus)) {
+ if (!info.isSpy() &&
+ windowAcceptsTouchAt(info, displayId, x, y, isStylus, getTransformLocked(displayId))) {
return windowHandle;
}
@@ -1093,7 +1106,7 @@ std::vector<sp<WindowInfoHandle>> InputDispatcher::findTouchedSpyWindowsAtLocked
for (const sp<WindowInfoHandle>& windowHandle : windowHandles) {
const WindowInfo& info = *windowHandle->getInfo();
- if (!windowAcceptsTouchAt(info, displayId, x, y, isStylus)) {
+ if (!windowAcceptsTouchAt(info, displayId, x, y, isStylus, getTransformLocked(displayId))) {
continue;
}
if (!info.isSpy()) {
@@ -2120,7 +2133,8 @@ InputEventInjectionResult InputDispatcher::findTouchedWindowTargetsLocked(
}
if (newTouchedWindows.empty()) {
- ALOGI("Dropping event because there is no touchable window at (%d, %d) on display %d.",
+ ALOGI("Dropping event because there is no touchable window at (%.1f, %.1f) on display "
+ "%d.",
x, y, displayId);
injectionResult = InputEventInjectionResult::FAILED;
goto Failed;
@@ -2154,7 +2168,8 @@ InputEventInjectionResult InputDispatcher::findTouchedWindowTargetsLocked(
computeTouchOcclusionInfoLocked(windowHandle, x, y);
if (!isTouchTrustedLocked(occlusionInfo)) {
if (DEBUG_TOUCH_OCCLUSION) {
- ALOGD("Stack of obscuring windows during untrusted touch (%d, %d):", x, y);
+ ALOGD("Stack of obscuring windows during untrusted touch (%.1f, %.1f):", x,
+ y);
for (const auto& log : occlusionInfo.debugInfo) {
ALOGD("%s", log.c_str());
}
@@ -4583,6 +4598,12 @@ sp<WindowInfoHandle> InputDispatcher::getFocusedWindowHandleLocked(int displayId
return getWindowHandleLocked(focusedToken, displayId);
}
+ui::Transform InputDispatcher::getTransformLocked(int32_t displayId) const {
+ auto displayInfoIt = mDisplayInfos.find(displayId);
+ return displayInfoIt != mDisplayInfos.end() ? displayInfoIt->second.transform
+ : kIdentityTransform;
+}
+
bool InputDispatcher::hasResponsiveConnectionLocked(WindowInfoHandle& windowHandle) const {
sp<Connection> connection = getConnectionLocked(windowHandle.getToken());
const bool noInputChannel =
diff --git a/services/inputflinger/dispatcher/InputDispatcher.h b/services/inputflinger/dispatcher/InputDispatcher.h
index c2277a8753..7769b9eabf 100644
--- a/services/inputflinger/dispatcher/InputDispatcher.h
+++ b/services/inputflinger/dispatcher/InputDispatcher.h
@@ -370,6 +370,7 @@ private:
int32_t displayId) const REQUIRES(mLock);
sp<android::gui::WindowInfoHandle> getWindowHandleLocked(
const sp<IBinder>& windowHandleToken) const REQUIRES(mLock);
+ ui::Transform getTransformLocked(int32_t displayId) const REQUIRES(mLock);
// Same function as above, but faster. Since displayId is provided, this avoids the need
// to loop through all displays.
diff --git a/services/inputflinger/tests/InputDispatcher_test.cpp b/services/inputflinger/tests/InputDispatcher_test.cpp
index b2575fe025..6280cf7cb6 100644
--- a/services/inputflinger/tests/InputDispatcher_test.cpp
+++ b/services/inputflinger/tests/InputDispatcher_test.cpp
@@ -2493,8 +2493,7 @@ class InputDispatcherDisplayProjectionTest : public InputDispatcherTest {
public:
void SetUp() override {
InputDispatcherTest::SetUp();
- mDisplayInfos.clear();
- mWindowInfos.clear();
+ removeAllWindowsAndDisplays();
}
void addDisplayInfo(int displayId, const ui::Transform& transform) {
@@ -2510,6 +2509,11 @@ public:
mDispatcher->onWindowInfosChanged(mWindowInfos, mDisplayInfos);
}
+ void removeAllWindowsAndDisplays() {
+ mDisplayInfos.clear();
+ mWindowInfos.clear();
+ }
+
// Set up a test scenario where the display has a scaled projection and there are two windows
// on the display.
std::pair<sp<FakeWindowHandle>, sp<FakeWindowHandle>> setupScaledDisplayScenario() {
@@ -2541,11 +2545,11 @@ private:
std::vector<gui::WindowInfo> mWindowInfos;
};
-TEST_F(InputDispatcherDisplayProjectionTest, HitTestsInDisplaySpace) {
+TEST_F(InputDispatcherDisplayProjectionTest, HitTestCoordinateSpaceConsistency) {
auto [firstWindow, secondWindow] = setupScaledDisplayScenario();
// Send down to the first window. The point is represented in the display space. The point is
- // selected so that if the hit test was done with the transform applied to it, then it would
- // end up in the incorrect window.
+ // selected so that if the hit test was performed with the point and the bounds being in
+ // different coordinate spaces, the event would end up in the incorrect window.
NotifyMotionArgs downMotionArgs =
generateMotionArgs(AMOTION_EVENT_ACTION_DOWN, AINPUT_SOURCE_TOUCHSCREEN,
ADISPLAY_ID_DEFAULT, {PointF{75, 55}});
@@ -2620,6 +2624,78 @@ TEST_F(InputDispatcherDisplayProjectionTest, WindowGetsEventsInCorrectCoordinate
EXPECT_EQ(80, event->getY(0));
}
+/** Ensure consistent behavior of InputDispatcher in all orientations. */
+class InputDispatcherDisplayOrientationFixture
+ : public InputDispatcherDisplayProjectionTest,
+ public ::testing::WithParamInterface<ui::Rotation> {};
+
+// This test verifies the touchable region of a window for all rotations of the display by tapping
+// in different locations on the display, specifically points close to the four corners of a
+// window.
+TEST_P(InputDispatcherDisplayOrientationFixture, HitTestInDifferentOrientations) {
+ constexpr static int32_t displayWidth = 400;
+ constexpr static int32_t displayHeight = 800;
+
+ std::shared_ptr<FakeApplicationHandle> application = std::make_shared<FakeApplicationHandle>();
+
+ const auto rotation = GetParam();
+
+ // Set up the display with the specified rotation.
+ const bool isRotated = rotation == ui::ROTATION_90 || rotation == ui::ROTATION_270;
+ const int32_t logicalDisplayWidth = isRotated ? displayHeight : displayWidth;
+ const int32_t logicalDisplayHeight = isRotated ? displayWidth : displayHeight;
+ const ui::Transform displayTransform(ui::Transform::toRotationFlags(rotation),
+ logicalDisplayWidth, logicalDisplayHeight);
+ addDisplayInfo(ADISPLAY_ID_DEFAULT, displayTransform);
+
+ // Create a window with its bounds determined in the logical display.
+ const Rect frameInLogicalDisplay(100, 100, 200, 300);
+ const Rect frameInDisplay = displayTransform.inverse().transform(frameInLogicalDisplay);
+ sp<FakeWindowHandle> window =
+ sp<FakeWindowHandle>::make(application, mDispatcher, "Window", ADISPLAY_ID_DEFAULT);
+ window->setFrame(frameInDisplay, displayTransform);
+ addWindow(window);
+
+ // The following points in logical display space should be inside the window.
+ static const std::array<vec2, 4> insidePoints{
+ {{100, 100}, {199.99, 100}, {100, 299.99}, {199.99, 299.99}}};
+ for (const auto pointInsideWindow : insidePoints) {
+ const vec2 p = displayTransform.inverse().transform(pointInsideWindow);
+ const PointF pointInDisplaySpace{p.x, p.y};
+ const auto down = generateMotionArgs(AMOTION_EVENT_ACTION_DOWN, AINPUT_SOURCE_TOUCHSCREEN,
+ ADISPLAY_ID_DEFAULT, {pointInDisplaySpace});
+ mDispatcher->notifyMotion(&down);
+ window->consumeMotionDown();
+
+ const auto up = generateMotionArgs(AMOTION_EVENT_ACTION_UP, AINPUT_SOURCE_TOUCHSCREEN,
+ ADISPLAY_ID_DEFAULT, {pointInDisplaySpace});
+ mDispatcher->notifyMotion(&up);
+ window->consumeMotionUp();
+ }
+
+ // The following points in logical display space should be outside the window.
+ static const std::array<vec2, 5> outsidePoints{
+ {{200, 100}, {100, 300}, {200, 300}, {100, 99.99}, {99.99, 100}}};
+ for (const auto pointOutsideWindow : outsidePoints) {
+ const vec2 p = displayTransform.inverse().transform(pointOutsideWindow);
+ const PointF pointInDisplaySpace{p.x, p.y};
+ const auto down = generateMotionArgs(AMOTION_EVENT_ACTION_DOWN, AINPUT_SOURCE_TOUCHSCREEN,
+ ADISPLAY_ID_DEFAULT, {pointInDisplaySpace});
+ mDispatcher->notifyMotion(&down);
+
+ const auto up = generateMotionArgs(AMOTION_EVENT_ACTION_UP, AINPUT_SOURCE_TOUCHSCREEN,
+ ADISPLAY_ID_DEFAULT, {pointInDisplaySpace});
+ mDispatcher->notifyMotion(&up);
+ }
+ window->assertNoEvents();
+}
+
+// Run the precision tests for all rotations.
+INSTANTIATE_TEST_SUITE_P(InputDispatcherDisplayOrientationTests,
+ InputDispatcherDisplayOrientationFixture,
+ ::testing::Values(ui::ROTATION_0, ui::ROTATION_90, ui::ROTATION_180,
+ ui::ROTATION_270));
+
using TransferFunction = std::function<bool(const std::unique_ptr<InputDispatcher>& dispatcher,
sp<IBinder>, sp<IBinder>)>;
generated by cgit v1.2.3-59-g8ed1b (git 2.39.0) at 2025-11-01 07:29:53 +0000