Dispatch mouse events to window under the cursor.

This CL adds cursor positions to NotifyMotionArgs, MotionEntry,
InputMessage motion body and MotionEvent.

Bug: 134788085
Test: The window under the cursor always responds to the gesture.
Test: atest inputflinger_tests
Test: atest libinput_tests
Change-Id: I8ea460ed8738ffc3a5e997215685889cc1e1f2fe
diff --git a/libs/input/tests/InputEvent_test.cpp b/libs/input/tests/InputEvent_test.cpp
index 2b75c82..ec34f3e 100644
--- a/libs/input/tests/InputEvent_test.cpp
+++ b/libs/input/tests/InputEvent_test.cpp
@@ -255,11 +255,11 @@
     pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_TOOL_MINOR, 27);
     pointerCoords[1].setAxisValue(AMOTION_EVENT_AXIS_ORIENTATION, 28);
     event->initialize(2, AINPUT_SOURCE_TOUCHSCREEN, DISPLAY_ID, AMOTION_EVENT_ACTION_MOVE, 0,
-            AMOTION_EVENT_FLAG_WINDOW_IS_OBSCURED,
-            AMOTION_EVENT_EDGE_FLAG_TOP, AMETA_ALT_ON, AMOTION_EVENT_BUTTON_PRIMARY,
-            MotionClassification::NONE, X_OFFSET, Y_OFFSET, 2.0f, 2.1f,
-            ARBITRARY_DOWN_TIME, ARBITRARY_EVENT_TIME,
-            2, pointerProperties, pointerCoords);
+                      AMOTION_EVENT_FLAG_WINDOW_IS_OBSCURED, AMOTION_EVENT_EDGE_FLAG_TOP,
+                      AMETA_ALT_ON, AMOTION_EVENT_BUTTON_PRIMARY, MotionClassification::NONE,
+                      X_OFFSET, Y_OFFSET, 2.0f, 2.1f, AMOTION_EVENT_INVALID_CURSOR_POSITION,
+                      AMOTION_EVENT_INVALID_CURSOR_POSITION, ARBITRARY_DOWN_TIME,
+                      ARBITRARY_EVENT_TIME, 2, pointerProperties, pointerCoords);
 
     pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_X, 110);
     pointerCoords[0].setAxisValue(AMOTION_EVENT_AXIS_Y, 111);
@@ -571,10 +571,11 @@
     }
     MotionEvent event;
     event.initialize(0 /*deviceId*/, AINPUT_SOURCE_UNKNOWN, DISPLAY_ID, AMOTION_EVENT_ACTION_MOVE,
-            0 /*actionButton*/, 0 /*flags*/, AMOTION_EVENT_EDGE_FLAG_NONE,
-            AMETA_NONE, 0 /*buttonState*/, MotionClassification::NONE,
-            0 /*xOffset*/, 0 /*yOffset*/, 0 /*xPrecision*/, 0 /*yPrecision*/,
-            0 /*downTime*/, 0 /*eventTime*/, pointerCount, pointerProperties, pointerCoords);
+                     0 /*actionButton*/, 0 /*flags*/, AMOTION_EVENT_EDGE_FLAG_NONE, AMETA_NONE,
+                     0 /*buttonState*/, MotionClassification::NONE, 0 /*xOffset*/, 0 /*yOffset*/,
+                     0 /*xPrecision*/, 0 /*yPrecision*/, 3 + RADIUS /*xCursorPosition*/,
+                     2 /*yCursorPosition*/, 0 /*downTime*/, 0 /*eventTime*/, pointerCount,
+                     pointerProperties, pointerCoords);
     float originalRawX = 0 + 3;
     float originalRawY = -RADIUS + 2;
 
@@ -602,6 +603,10 @@
         ASSERT_NEAR(tanf(angle), tanf(event.getOrientation(i)), 0.1);
     }
 
+    // Check cursor positions.
+    ASSERT_NEAR(sinf(PI_180 * (90 + ROTATION)) * RADIUS, event.getXCursorPosition(), 0.001);
+    ASSERT_NEAR(-cosf(PI_180 * (90 + ROTATION)) * RADIUS, event.getYCursorPosition(), 0.001);
+
     // Applying the transformation should preserve the raw X and Y of the first point.
     ASSERT_NEAR(originalRawX, event.getRawX(0), 0.001);
     ASSERT_NEAR(originalRawY, event.getRawY(0), 0.001);
@@ -626,11 +631,34 @@
 
     for (MotionClassification classification : classifications) {
         event.initialize(0 /*deviceId*/, AINPUT_SOURCE_TOUCHSCREEN, DISPLAY_ID,
-                AMOTION_EVENT_ACTION_DOWN, 0, 0, AMOTION_EVENT_EDGE_FLAG_NONE, AMETA_NONE, 0,
-                classification, 0, 0, 0, 0, 0 /*downTime*/, 0 /*eventTime*/,
-                pointerCount, pointerProperties, pointerCoords);
+                         AMOTION_EVENT_ACTION_DOWN, 0, 0, AMOTION_EVENT_EDGE_FLAG_NONE, AMETA_NONE,
+                         0, classification, 0, 0, 0, 0, AMOTION_EVENT_INVALID_CURSOR_POSITION,
+                         AMOTION_EVENT_INVALID_CURSOR_POSITION, 0 /*downTime*/, 0 /*eventTime*/,
+                         pointerCount, pointerProperties, pointerCoords);
         ASSERT_EQ(classification, event.getClassification());
     }
 }
 
+TEST_F(MotionEventTest, Initialize_SetsCursorPosition) {
+    MotionEvent event;
+    constexpr size_t pointerCount = 1;
+    PointerProperties pointerProperties[pointerCount];
+    PointerCoords pointerCoords[pointerCount];
+    for (size_t i = 0; i < pointerCount; i++) {
+        pointerProperties[i].clear();
+        pointerProperties[i].id = i;
+        pointerCoords[i].clear();
+    }
+
+    event.initialize(0 /*deviceId*/, AINPUT_SOURCE_MOUSE, DISPLAY_ID, AMOTION_EVENT_ACTION_DOWN, 0,
+                     0, AMOTION_EVENT_EDGE_FLAG_NONE, AMETA_NONE, 0, MotionClassification::NONE, 0,
+                     0, 0, 0, 280 /*xCursorPosition*/, 540 /*yCursorPosition*/, 0 /*downTime*/,
+                     0 /*eventTime*/, pointerCount, pointerProperties, pointerCoords);
+    event.offsetLocation(20, 60);
+    ASSERT_EQ(280, event.getRawXCursorPosition());
+    ASSERT_EQ(540, event.getRawYCursorPosition());
+    ASSERT_EQ(300, event.getXCursorPosition());
+    ASSERT_EQ(600, event.getYCursorPosition());
+}
+
 } // namespace android
diff --git a/libs/input/tests/InputPublisherAndConsumer_test.cpp b/libs/input/tests/InputPublisherAndConsumer_test.cpp
index f2cd1be..a362f32 100644
--- a/libs/input/tests/InputPublisherAndConsumer_test.cpp
+++ b/libs/input/tests/InputPublisherAndConsumer_test.cpp
@@ -146,6 +146,8 @@
     constexpr float yOffset = -20;
     constexpr float xPrecision = 0.25;
     constexpr float yPrecision = 0.5;
+    constexpr float xCursorPosition = 1.3;
+    constexpr float yCursorPosition = 50.6;
     constexpr nsecs_t downTime = 3;
     constexpr size_t pointerCount = 3;
     constexpr nsecs_t eventTime = 4;
@@ -168,10 +170,12 @@
         pointerCoords[i].setAxisValue(AMOTION_EVENT_AXIS_ORIENTATION, 3.5 * i);
     }
 
-    status = mPublisher->publishMotionEvent(seq, deviceId, source, displayId, action, actionButton,
-            flags, edgeFlags, metaState, buttonState, classification,
-            xOffset, yOffset, xPrecision, yPrecision, downTime, eventTime, pointerCount,
-            pointerProperties, pointerCoords);
+    status =
+            mPublisher->publishMotionEvent(seq, deviceId, source, displayId, action, actionButton,
+                                           flags, edgeFlags, metaState, buttonState, classification,
+                                           xOffset, yOffset, xPrecision, yPrecision,
+                                           xCursorPosition, yCursorPosition, downTime, eventTime,
+                                           pointerCount, pointerProperties, pointerCoords);
     ASSERT_EQ(OK, status)
             << "publisher publishMotionEvent should return OK";
 
@@ -199,6 +203,10 @@
     EXPECT_EQ(classification, motionEvent->getClassification());
     EXPECT_EQ(xPrecision, motionEvent->getXPrecision());
     EXPECT_EQ(yPrecision, motionEvent->getYPrecision());
+    EXPECT_EQ(xCursorPosition, motionEvent->getRawXCursorPosition());
+    EXPECT_EQ(yCursorPosition, motionEvent->getRawYCursorPosition());
+    EXPECT_EQ(xCursorPosition + xOffset, motionEvent->getXCursorPosition());
+    EXPECT_EQ(yCursorPosition + yOffset, motionEvent->getYCursorPosition());
     EXPECT_EQ(downTime, motionEvent->getDownTime());
     EXPECT_EQ(eventTime, motionEvent->getEventTime());
     EXPECT_EQ(pointerCount, motionEvent->getPointerCount());
@@ -266,9 +274,11 @@
         pointerCoords[i].clear();
     }
 
-    status = mPublisher->publishMotionEvent(0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-            MotionClassification::NONE, 0, 0, 0, 0, 0, 0,
-            pointerCount, pointerProperties, pointerCoords);
+    status =
+            mPublisher->publishMotionEvent(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, MotionClassification::NONE,
+                                           0, 0, 0, 0, AMOTION_EVENT_INVALID_CURSOR_POSITION,
+                                           AMOTION_EVENT_INVALID_CURSOR_POSITION, 0, 0,
+                                           pointerCount, pointerProperties, pointerCoords);
     ASSERT_EQ(BAD_VALUE, status)
             << "publisher publishMotionEvent should return BAD_VALUE";
 }
@@ -279,9 +289,11 @@
     PointerProperties pointerProperties[pointerCount];
     PointerCoords pointerCoords[pointerCount];
 
-    status = mPublisher->publishMotionEvent(1, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-            MotionClassification::NONE, 0, 0, 0, 0, 0, 0,
-            pointerCount, pointerProperties, pointerCoords);
+    status =
+            mPublisher->publishMotionEvent(1, 0, 0, 0, 0, 0, 0, 0, 0, 0, MotionClassification::NONE,
+                                           0, 0, 0, 0, AMOTION_EVENT_INVALID_CURSOR_POSITION,
+                                           AMOTION_EVENT_INVALID_CURSOR_POSITION, 0, 0,
+                                           pointerCount, pointerProperties, pointerCoords);
     ASSERT_EQ(BAD_VALUE, status)
             << "publisher publishMotionEvent should return BAD_VALUE";
 }
@@ -297,9 +309,11 @@
         pointerCoords[i].clear();
     }
 
-    status = mPublisher->publishMotionEvent(1, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-            MotionClassification::NONE, 0, 0, 0, 0, 0, 0,
-            pointerCount, pointerProperties, pointerCoords);
+    status =
+            mPublisher->publishMotionEvent(1, 0, 0, 0, 0, 0, 0, 0, 0, 0, MotionClassification::NONE,
+                                           0, 0, 0, 0, AMOTION_EVENT_INVALID_CURSOR_POSITION,
+                                           AMOTION_EVENT_INVALID_CURSOR_POSITION, 0, 0,
+                                           pointerCount, pointerProperties, pointerCoords);
     ASSERT_EQ(BAD_VALUE, status)
             << "publisher publishMotionEvent should return BAD_VALUE";
 }
diff --git a/libs/input/tests/StructLayout_test.cpp b/libs/input/tests/StructLayout_test.cpp
index 62023fb..8d8cf06 100644
--- a/libs/input/tests/StructLayout_test.cpp
+++ b/libs/input/tests/StructLayout_test.cpp
@@ -64,8 +64,10 @@
   CHECK_OFFSET(InputMessage::Body::Motion, yOffset, 68);
   CHECK_OFFSET(InputMessage::Body::Motion, xPrecision, 72);
   CHECK_OFFSET(InputMessage::Body::Motion, yPrecision, 76);
-  CHECK_OFFSET(InputMessage::Body::Motion, pointerCount, 80);
-  CHECK_OFFSET(InputMessage::Body::Motion, pointers, 88);
+  CHECK_OFFSET(InputMessage::Body::Motion, xCursorPosition, 80);
+  CHECK_OFFSET(InputMessage::Body::Motion, yCursorPosition, 84);
+  CHECK_OFFSET(InputMessage::Body::Motion, pointerCount, 88);
+  CHECK_OFFSET(InputMessage::Body::Motion, pointers, 96);
 
   CHECK_OFFSET(InputMessage::Body::Finished, seq, 0);
   CHECK_OFFSET(InputMessage::Body::Finished, handled, 4);
diff --git a/libs/input/tests/VelocityTracker_test.cpp b/libs/input/tests/VelocityTracker_test.cpp
index 368446f..968e2fa 100644
--- a/libs/input/tests/VelocityTracker_test.cpp
+++ b/libs/input/tests/VelocityTracker_test.cpp
@@ -176,12 +176,13 @@
         EXPECT_EQ(pointerIndex, pointerCount);
 
         MotionEvent event;
-        event.initialize(0 /*deviceId*/, AINPUT_SOURCE_TOUCHSCREEN, DISPLAY_ID,
-                action, 0 /*actionButton*/, 0 /*flags*/,
-                AMOTION_EVENT_EDGE_FLAG_NONE, AMETA_NONE, 0 /*buttonState*/,
-                MotionClassification::NONE,
-                0 /*xOffset*/, 0 /*yOffset*/, 0 /*xPrecision*/, 0 /*yPrecision*/,
-                0 /*downTime*/, entry.eventTime.count(), pointerCount, properties, coords);
+        event.initialize(0 /*deviceId*/, AINPUT_SOURCE_TOUCHSCREEN, DISPLAY_ID, action,
+                         0 /*actionButton*/, 0 /*flags*/, AMOTION_EVENT_EDGE_FLAG_NONE, AMETA_NONE,
+                         0 /*buttonState*/, MotionClassification::NONE, 0 /*xOffset*/,
+                         0 /*yOffset*/, 0 /*xPrecision*/, 0 /*yPrecision*/,
+                         AMOTION_EVENT_INVALID_CURSOR_POSITION,
+                         AMOTION_EVENT_INVALID_CURSOR_POSITION, 0 /*downTime*/,
+                         entry.eventTime.count(), pointerCount, properties, coords);
 
         events.emplace_back(event);
     }