Add InputDispatcherInterface::transferTouch api
The new api will allow the transfer of touch from the current
window (wherever that may be) to the specified window.
Bug: 177997773
Test: atest inputflinger_tests
Change-Id: I6acd17cfb6de0fa8466c73e99e27c0b283864eae
diff --git a/services/inputflinger/tests/InputDispatcher_test.cpp b/services/inputflinger/tests/InputDispatcher_test.cpp
index 9687c83..1da125a 100644
--- a/services/inputflinger/tests/InputDispatcher_test.cpp
+++ b/services/inputflinger/tests/InputDispatcher_test.cpp
@@ -1708,7 +1708,13 @@
0 /*expectedFlags*/);
}
-TEST_F(InputDispatcherTest, TransferTouchFocus_OnePointer) {
+using TransferFunction =
+ std::function<bool(sp<InputDispatcher> dispatcher, sp<IBinder>, sp<IBinder>)>;
+
+class TransferTouchFixture : public InputDispatcherTest,
+ public ::testing::WithParamInterface<TransferFunction> {};
+
+TEST_P(TransferTouchFixture, TransferTouch_OnePointer) {
std::shared_ptr<FakeApplicationHandle> application = std::make_shared<FakeApplicationHandle>();
// Create a couple of windows
@@ -1729,8 +1735,10 @@
firstWindow->consumeMotionDown();
secondWindow->assertNoEvents();
- // Transfer touch focus to the second window
- mDispatcher->transferTouchFocus(firstWindow->getToken(), secondWindow->getToken());
+ // Transfer touch to the second window
+ TransferFunction f = GetParam();
+ const bool success = f(mDispatcher, firstWindow->getToken(), secondWindow->getToken());
+ ASSERT_TRUE(success);
// The first window gets cancel and the second gets down
firstWindow->consumeMotionCancel();
secondWindow->consumeMotionDown();
@@ -1745,7 +1753,7 @@
secondWindow->consumeMotionUp();
}
-TEST_F(InputDispatcherTest, TransferTouchFocus_TwoPointerNoSplitTouch) {
+TEST_P(TransferTouchFixture, TransferTouch_TwoPointersNonSplitTouch) {
std::shared_ptr<FakeApplicationHandle> application = std::make_shared<FakeApplicationHandle>();
PointF touchPoint = {10, 10};
@@ -1780,7 +1788,9 @@
secondWindow->assertNoEvents();
// Transfer touch focus to the second window
- mDispatcher->transferTouchFocus(firstWindow->getToken(), secondWindow->getToken());
+ TransferFunction f = GetParam();
+ bool success = f(mDispatcher, firstWindow->getToken(), secondWindow->getToken());
+ ASSERT_TRUE(success);
// The first window gets cancel and the second gets down and pointer down
firstWindow->consumeMotionCancel();
secondWindow->consumeMotionDown();
@@ -1807,6 +1817,21 @@
secondWindow->consumeMotionUp();
}
+// For the cases of single pointer touch and two pointers non-split touch, the api's
+// 'transferTouch' and 'transferTouchFocus' are equivalent in behaviour. They only differ
+// for the case where there are multiple pointers split across several windows.
+INSTANTIATE_TEST_SUITE_P(TransferFunctionTests, TransferTouchFixture,
+ ::testing::Values(
+ [&](sp<InputDispatcher> dispatcher, sp<IBinder> /*ignored*/,
+ sp<IBinder> destChannelToken) {
+ return dispatcher->transferTouch(destChannelToken);
+ },
+ [&](sp<InputDispatcher> dispatcher, sp<IBinder> from,
+ sp<IBinder> to) {
+ return dispatcher->transferTouchFocus(from, to,
+ false /*isDragAndDrop*/);
+ }));
+
TEST_F(InputDispatcherTest, TransferTouchFocus_TwoPointersSplitTouch) {
std::shared_ptr<FakeApplicationHandle> application = std::make_shared<FakeApplicationHandle>();
@@ -1877,6 +1902,82 @@
secondWindow->consumeMotionUp();
}
+// Same as TransferTouchFocus_TwoPointersSplitTouch, but using 'transferTouch' api.
+// Unlike 'transferTouchFocus', calling 'transferTouch' when there are two windows receiving
+// touch is not supported, so the touch should continue on those windows and the transferred-to
+// window should get nothing.
+TEST_F(InputDispatcherTest, TransferTouch_TwoPointersSplitTouch) {
+ std::shared_ptr<FakeApplicationHandle> application = std::make_shared<FakeApplicationHandle>();
+
+ // Create a non touch modal window that supports split touch
+ sp<FakeWindowHandle> firstWindow =
+ new FakeWindowHandle(application, mDispatcher, "First Window", ADISPLAY_ID_DEFAULT);
+ firstWindow->setFrame(Rect(0, 0, 600, 400));
+ firstWindow->setFlags(InputWindowInfo::Flag::NOT_TOUCH_MODAL |
+ InputWindowInfo::Flag::SPLIT_TOUCH);
+
+ // Create a non touch modal window that supports split touch
+ sp<FakeWindowHandle> secondWindow =
+ new FakeWindowHandle(application, mDispatcher, "Second Window", ADISPLAY_ID_DEFAULT);
+ secondWindow->setFrame(Rect(0, 400, 600, 800));
+ secondWindow->setFlags(InputWindowInfo::Flag::NOT_TOUCH_MODAL |
+ InputWindowInfo::Flag::SPLIT_TOUCH);
+
+ // Add the windows to the dispatcher
+ mDispatcher->setInputWindows({{ADISPLAY_ID_DEFAULT, {firstWindow, secondWindow}}});
+
+ PointF pointInFirst = {300, 200};
+ PointF pointInSecond = {300, 600};
+
+ // Send down to the first window
+ NotifyMotionArgs firstDownMotionArgs =
+ generateMotionArgs(AMOTION_EVENT_ACTION_DOWN, AINPUT_SOURCE_TOUCHSCREEN,
+ ADISPLAY_ID_DEFAULT, {pointInFirst});
+ mDispatcher->notifyMotion(&firstDownMotionArgs);
+ // Only the first window should get the down event
+ firstWindow->consumeMotionDown();
+ secondWindow->assertNoEvents();
+
+ // Send down to the second window
+ NotifyMotionArgs secondDownMotionArgs =
+ generateMotionArgs(AMOTION_EVENT_ACTION_POINTER_DOWN |
+ (1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+ AINPUT_SOURCE_TOUCHSCREEN, ADISPLAY_ID_DEFAULT,
+ {pointInFirst, pointInSecond});
+ mDispatcher->notifyMotion(&secondDownMotionArgs);
+ // The first window gets a move and the second a down
+ firstWindow->consumeMotionMove();
+ secondWindow->consumeMotionDown();
+
+ // Transfer touch focus to the second window
+ const bool transferred = mDispatcher->transferTouch(secondWindow->getToken());
+ // The 'transferTouch' call should not succeed, because there are 2 touched windows
+ ASSERT_FALSE(transferred);
+ firstWindow->assertNoEvents();
+ secondWindow->assertNoEvents();
+
+ // The rest of the dispatch should proceed as normal
+ // Send pointer up to the second window
+ NotifyMotionArgs pointerUpMotionArgs =
+ generateMotionArgs(AMOTION_EVENT_ACTION_POINTER_UP |
+ (1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
+ AINPUT_SOURCE_TOUCHSCREEN, ADISPLAY_ID_DEFAULT,
+ {pointInFirst, pointInSecond});
+ mDispatcher->notifyMotion(&pointerUpMotionArgs);
+ // The first window gets MOVE and the second gets pointer up
+ firstWindow->consumeMotionMove();
+ secondWindow->consumeMotionUp();
+
+ // Send up event to the first window
+ NotifyMotionArgs upMotionArgs =
+ generateMotionArgs(AMOTION_EVENT_ACTION_UP, AINPUT_SOURCE_TOUCHSCREEN,
+ ADISPLAY_ID_DEFAULT);
+ mDispatcher->notifyMotion(&upMotionArgs);
+ // The first window gets nothing and the second gets up
+ firstWindow->consumeMotionUp();
+ secondWindow->assertNoEvents();
+}
+
TEST_F(InputDispatcherTest, FocusedWindow_ReceivesFocusEventAndKeyEvent) {
std::shared_ptr<FakeApplicationHandle> application = std::make_shared<FakeApplicationHandle>();
sp<FakeWindowHandle> window =