Set down time when event slips into Wallpaper
When touch slips into a window that also has a wallpaper, the wallpaper
should receive a slippery enter event, as well. We should also ensure
that the downTime is correctly set at this time. Otherwise, we will
encounter issues later, when trying to split motion events.
This can be reproduced by slipping touch from the navigationbar into
launcher and then pressing the navigation bar with other finger.
Bug: 354059964
Test: manually
1. Press navigationbar and move to launcher and hold.
2. Inject motionevent by "adb shell input swipe 500 1500 500 1000"
3. Press navigationbar by other finger.
Test: TEST=inputflinger_tests; m $TEST && $ANDROID_HOST_OUT/nativetest64/$TEST/$TEST --gtest_filter="*WallpaperWindowWhenSlipperyAndMultiWindowMultiTouch"
Flag: EXEMPT bugfix
Change-Id: Ib201e859492509a6cd9e7f73065813ef15611ad9
diff --git a/services/inputflinger/dispatcher/InputDispatcher.cpp b/services/inputflinger/dispatcher/InputDispatcher.cpp
index af4a04d..d36a24a 100644
--- a/services/inputflinger/dispatcher/InputDispatcher.cpp
+++ b/services/inputflinger/dispatcher/InputDispatcher.cpp
@@ -2683,7 +2683,7 @@
// Check if the wallpaper window should deliver the corresponding event.
slipWallpaperTouch(targetFlags, oldTouchedWindowHandle, newTouchedWindowHandle,
- tempTouchState, entry.deviceId, pointer, targets);
+ tempTouchState, entry, targets);
tempTouchState.removeTouchingPointerFromWindow(entry.deviceId, pointer.id,
oldTouchedWindowHandle);
}
@@ -7096,9 +7096,11 @@
void InputDispatcher::slipWallpaperTouch(ftl::Flags<InputTarget::Flags> targetFlags,
const sp<WindowInfoHandle>& oldWindowHandle,
const sp<WindowInfoHandle>& newWindowHandle,
- TouchState& state, DeviceId deviceId,
- const PointerProperties& pointerProperties,
+ TouchState& state, const MotionEntry& entry,
std::vector<InputTarget>& targets) const {
+ LOG_IF(FATAL, entry.getPointerCount() != 1) << "Entry not eligible for slip: " << entry;
+ const DeviceId deviceId = entry.deviceId;
+ const PointerProperties& pointerProperties = entry.pointerProperties[0];
std::vector<PointerProperties> pointers{pointerProperties};
const bool oldHasWallpaper = oldWindowHandle->getInfo()->inputConfig.test(
gui::WindowInfo::InputConfig::DUPLICATE_TOUCH_TO_WALLPAPER);
@@ -7125,7 +7127,7 @@
state.addOrUpdateWindow(newWallpaper, InputTarget::DispatchMode::SLIPPERY_ENTER,
InputTarget::Flags::WINDOW_IS_OBSCURED |
InputTarget::Flags::WINDOW_IS_PARTIALLY_OBSCURED,
- deviceId, pointers);
+ deviceId, pointers, entry.eventTime);
}
}
diff --git a/services/inputflinger/dispatcher/InputDispatcher.h b/services/inputflinger/dispatcher/InputDispatcher.h
index 698bdba..87dfd1d 100644
--- a/services/inputflinger/dispatcher/InputDispatcher.h
+++ b/services/inputflinger/dispatcher/InputDispatcher.h
@@ -709,11 +709,23 @@
sp<InputReporterInterface> mReporter;
+ /**
+ * Slip the wallpaper touch if necessary.
+ *
+ * @param targetFlags the target flags
+ * @param oldWindowHandle the old window that the touch slipped out of
+ * @param newWindowHandle the new window that the touch is slipping into
+ * @param state the current touch state. This will be updated if necessary to reflect the new
+ * windows that are receiving touch.
+ * @param deviceId the device id of the current motion being processed
+ * @param pointerProperties the pointer properties of the current motion being processed
+ * @param targets the current targets to add the walpaper ones to
+ * @param eventTime the new downTime for the wallpaper target
+ */
void slipWallpaperTouch(ftl::Flags<InputTarget::Flags> targetFlags,
const sp<android::gui::WindowInfoHandle>& oldWindowHandle,
const sp<android::gui::WindowInfoHandle>& newWindowHandle,
- TouchState& state, DeviceId deviceId,
- const PointerProperties& pointerProperties,
+ TouchState& state, const MotionEntry& entry,
std::vector<InputTarget>& targets) const REQUIRES(mLock);
void transferWallpaperTouch(ftl::Flags<InputTarget::Flags> oldTargetFlags,
ftl::Flags<InputTarget::Flags> newTargetFlags,
diff --git a/services/inputflinger/dispatcher/TouchState.h b/services/inputflinger/dispatcher/TouchState.h
index 9d4bb3d..5a70dd5 100644
--- a/services/inputflinger/dispatcher/TouchState.h
+++ b/services/inputflinger/dispatcher/TouchState.h
@@ -47,7 +47,7 @@
const sp<android::gui::WindowInfoHandle>& windowHandle,
InputTarget::DispatchMode dispatchMode, ftl::Flags<InputTarget::Flags> targetFlags,
DeviceId deviceId, const std::vector<PointerProperties>& touchingPointers,
- std::optional<nsecs_t> firstDownTimeInTarget = std::nullopt);
+ std::optional<nsecs_t> firstDownTimeInTarget);
void addHoveringPointerToWindow(const sp<android::gui::WindowInfoHandle>& windowHandle,
DeviceId deviceId, const PointerProperties& pointer);
void removeHoveringPointer(DeviceId deviceId, int32_t pointerId);
diff --git a/services/inputflinger/tests/InputDispatcher_test.cpp b/services/inputflinger/tests/InputDispatcher_test.cpp
index e505850..a573b9e 100644
--- a/services/inputflinger/tests/InputDispatcher_test.cpp
+++ b/services/inputflinger/tests/InputDispatcher_test.cpp
@@ -5663,6 +5663,147 @@
}
/**
+ * Three windows:
+ * 1) A window on the left, with flag dup_to_wallpaper
+ * 2) A window on the right, with flag slippery
+ * 3) A wallpaper window under the left window
+ * When touch slips from right window to left, the wallpaper should receive a similar slippery
+ * enter event. Later on, when another device becomes active, the wallpaper should receive
+ * consistent streams from the new device, and also from the old device.
+ * This test attempts to reproduce a crash in the dispatcher where the wallpaper target's downTime
+ * was not getting set during slippery entrance.
+ */
+TEST_F(InputDispatcherTest, WallpaperWindowWhenSlipperyAndMultiWindowMultiTouch) {
+ std::shared_ptr<FakeApplicationHandle> application1 = std::make_shared<FakeApplicationHandle>();
+ std::shared_ptr<FakeApplicationHandle> application2 = std::make_shared<FakeApplicationHandle>();
+ std::shared_ptr<FakeApplicationHandle> application3 = std::make_shared<FakeApplicationHandle>();
+ sp<FakeWindowHandle> wallpaper =
+ sp<FakeWindowHandle>::make(application1, mDispatcher, "wallpaper",
+ ui::LogicalDisplayId::DEFAULT);
+ wallpaper->setIsWallpaper(true);
+ wallpaper->setPreventSplitting(true);
+ wallpaper->setTouchable(false);
+
+ sp<FakeWindowHandle> leftWindow = sp<FakeWindowHandle>::make(application2, mDispatcher, "Left",
+ ui::LogicalDisplayId::DEFAULT);
+ leftWindow->setTouchableRegion(Region{{0, 0, 100, 100}});
+ leftWindow->setDupTouchToWallpaper(true);
+
+ sp<FakeWindowHandle> rightWindow =
+ sp<FakeWindowHandle>::make(application3, mDispatcher, "Right",
+ ui::LogicalDisplayId::DEFAULT);
+ rightWindow->setTouchableRegion(Region{{100, 0, 200, 100}});
+ rightWindow->setSlippery(true);
+ rightWindow->setWatchOutsideTouch(true);
+ rightWindow->setTrustedOverlay(true);
+
+ mDispatcher->onWindowInfosChanged(
+ {{*rightWindow->getInfo(), *leftWindow->getInfo(), *wallpaper->getInfo()}, {}, 0, 0});
+
+ const DeviceId deviceA = 3;
+ const DeviceId deviceB = 9;
+
+ // First finger from device A into right window
+ NotifyMotionArgs deviceADownArgs =
+ MotionArgsBuilder(ACTION_DOWN, AINPUT_SOURCE_TOUCHSCREEN)
+ .pointer(PointerBuilder(0, ToolType::FINGER).x(150).y(50))
+ .deviceId(deviceA)
+ .build();
+
+ mDispatcher->notifyMotion(deviceADownArgs);
+ rightWindow->consumeMotionEvent(WithMotionAction(ACTION_DOWN));
+
+ // Move the finger of device A from right window into left window. It should slip.
+ mDispatcher->notifyMotion(MotionArgsBuilder(ACTION_MOVE, AINPUT_SOURCE_TOUCHSCREEN)
+ .pointer(PointerBuilder(0, ToolType::FINGER).x(80).y(50))
+ .deviceId(deviceA)
+ .downTime(deviceADownArgs.downTime)
+ .build());
+
+ leftWindow->consumeMotionEvent(WithMotionAction(ACTION_DOWN));
+ rightWindow->consumeMotionEvent(WithMotionAction(ACTION_CANCEL));
+ wallpaper->consumeMotionEvent(WithMotionAction(ACTION_DOWN));
+
+ // Finger from device B down into left window
+ NotifyMotionArgs deviceBDownArgs =
+ MotionArgsBuilder(ACTION_DOWN, AINPUT_SOURCE_TOUCHSCREEN)
+ .pointer(PointerBuilder(0, ToolType::FINGER).x(40).y(40))
+ .deviceId(deviceB)
+ .build();
+ mDispatcher->notifyMotion(deviceBDownArgs);
+ leftWindow->consumeMotionEvent(AllOf(WithDeviceId(deviceB), WithMotionAction(ACTION_DOWN)));
+ wallpaper->consumeMotionEvent(AllOf(WithDeviceId(deviceB), WithMotionAction(ACTION_DOWN)));
+
+ rightWindow->consumeMotionEvent(AllOf(WithDeviceId(deviceB), WithMotionAction(ACTION_OUTSIDE)));
+
+ // Move finger from device B, still keeping it in the left window
+ mDispatcher->notifyMotion(MotionArgsBuilder(ACTION_MOVE, AINPUT_SOURCE_TOUCHSCREEN)
+ .pointer(PointerBuilder(0, ToolType::FINGER).x(40).y(50))
+ .deviceId(deviceB)
+ .downTime(deviceBDownArgs.downTime)
+ .build());
+ leftWindow->consumeMotionEvent(AllOf(WithDeviceId(deviceB), WithMotionAction(ACTION_MOVE)));
+ wallpaper->consumeMotionEvent(AllOf(WithDeviceId(deviceB), WithMotionAction(ACTION_MOVE)));
+
+ // Lift the finger from device B
+ mDispatcher->notifyMotion(MotionArgsBuilder(ACTION_UP, AINPUT_SOURCE_TOUCHSCREEN)
+ .pointer(PointerBuilder(0, ToolType::FINGER).x(40).y(50))
+ .deviceId(deviceB)
+ .downTime(deviceBDownArgs.downTime)
+ .build());
+ leftWindow->consumeMotionEvent(AllOf(WithDeviceId(deviceB), WithMotionAction(ACTION_UP)));
+ wallpaper->consumeMotionEvent(AllOf(WithDeviceId(deviceB), WithMotionAction(ACTION_UP)));
+
+ // Move the finger of device A, keeping it in the left window
+ mDispatcher->notifyMotion(MotionArgsBuilder(ACTION_MOVE, AINPUT_SOURCE_TOUCHSCREEN)
+ .pointer(PointerBuilder(0, ToolType::FINGER).x(70).y(50))
+ .deviceId(deviceA)
+ .downTime(deviceADownArgs.downTime)
+ .build());
+
+ leftWindow->consumeMotionEvent(AllOf(WithDeviceId(deviceA), WithMotionAction(ACTION_MOVE)));
+ wallpaper->consumeMotionEvent(AllOf(WithDeviceId(deviceA), WithMotionAction(ACTION_MOVE)));
+
+ // Second finger down from device A, into the right window. It should be split into:
+ // MOVE for the left window (due to existing implementation) + a DOWN into the right window
+ // Wallpaper will not receive this new pointer, and it will only get the MOVE event.
+ mDispatcher->notifyMotion(MotionArgsBuilder(POINTER_1_DOWN, AINPUT_SOURCE_TOUCHSCREEN)
+ .pointer(PointerBuilder(0, ToolType::FINGER).x(70).y(50))
+ .pointer(PointerBuilder(1, ToolType::FINGER).x(140).y(50))
+ .deviceId(deviceA)
+ .downTime(deviceADownArgs.downTime)
+ .build());
+ auto firstFingerMoveFromDeviceA = AllOf(WithDeviceId(deviceA), WithMotionAction(ACTION_MOVE),
+ WithPointerCount(1), WithPointerId(0, 0));
+ leftWindow->consumeMotionEvent(firstFingerMoveFromDeviceA);
+ wallpaper->consumeMotionEvent(firstFingerMoveFromDeviceA);
+ rightWindow->consumeMotionEvent(
+ AllOf(WithDeviceId(deviceA), WithMotionAction(ACTION_DOWN), WithPointerId(0, 1)));
+
+ // Lift up the second finger.
+ mDispatcher->notifyMotion(MotionArgsBuilder(POINTER_1_UP, AINPUT_SOURCE_TOUCHSCREEN)
+ .pointer(PointerBuilder(0, ToolType::FINGER).x(70).y(50))
+ .pointer(PointerBuilder(1, ToolType::FINGER).x(140).y(50))
+ .deviceId(deviceA)
+ .downTime(deviceADownArgs.downTime)
+ .build());
+
+ rightWindow->consumeMotionEvent(AllOf(WithDeviceId(deviceA), WithMotionAction(ACTION_UP)));
+ leftWindow->consumeMotionEvent(firstFingerMoveFromDeviceA);
+ wallpaper->consumeMotionEvent(firstFingerMoveFromDeviceA);
+
+ mDispatcher->notifyMotion(MotionArgsBuilder(ACTION_UP, AINPUT_SOURCE_TOUCHSCREEN)
+ .pointer(PointerBuilder(0, ToolType::FINGER).x(70).y(50))
+ .deviceId(deviceA)
+ .downTime(deviceADownArgs.downTime)
+ .build());
+
+ leftWindow->consumeMotionEvent(AllOf(WithDeviceId(deviceA), WithMotionAction(ACTION_UP)));
+ wallpaper->consumeMotionEvent(AllOf(WithDeviceId(deviceA), WithMotionAction(ACTION_UP)));
+ rightWindow->assertNoEvents();
+}
+
+/**
* Two windows: left and right. The left window has PREVENT_SPLITTING input config. Device A sends a
* down event to the right window. Device B sends a down event to the left window, and then a
* POINTER_DOWN event to the right window. However, since the left window prevents splitting, the