| /* |
| * Copyright (C) 2018 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.server.accessibility.gestures; |
| |
| import static com.android.server.accessibility.gestures.TouchState.STATE_CLEAR; |
| import static com.android.server.accessibility.gestures.TouchState.STATE_DELEGATING; |
| import static com.android.server.accessibility.gestures.TouchState.STATE_DRAGGING; |
| import static com.android.server.accessibility.gestures.TouchState.STATE_TOUCH_EXPLORING; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.mockito.Mockito.mock; |
| |
| import android.content.Context; |
| import android.graphics.PointF; |
| import android.os.SystemClock; |
| import android.testing.DexmakerShareClassLoaderRule; |
| import android.view.InputDevice; |
| import android.view.MotionEvent; |
| |
| import androidx.test.InstrumentationRegistry; |
| import androidx.test.runner.AndroidJUnit4; |
| |
| import com.android.server.accessibility.AccessibilityManagerService; |
| import com.android.server.accessibility.EventStreamTransformation; |
| |
| import org.junit.Before; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.mockito.ArgumentCaptor; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| @RunWith(AndroidJUnit4.class) |
| public class TouchExplorerTest { |
| |
| private static final int FLAG_1FINGER = 0x8000; |
| private static final int FLAG_2FINGERS = 0x0100; |
| private static final int FLAG_3FINGERS = 0x0200; |
| private static final int FLAG_MOVING = 0x00010000; |
| private static final int FLAG_MOVING_DIFF_DIRECTION = 0x00020000; |
| |
| private static final int STATE_TOUCH_EXPLORING_1FINGER = STATE_TOUCH_EXPLORING | FLAG_1FINGER; |
| private static final int STATE_TOUCH_EXPLORING_2FINGER = STATE_TOUCH_EXPLORING | FLAG_2FINGERS; |
| private static final int STATE_TOUCH_EXPLORING_3FINGER = STATE_TOUCH_EXPLORING | FLAG_3FINGERS; |
| private static final int STATE_MOVING_2FINGERS = STATE_TOUCH_EXPLORING_2FINGER | FLAG_MOVING; |
| private static final int STATE_MOVING_3FINGERS = STATE_TOUCH_EXPLORING_3FINGER | FLAG_MOVING; |
| private static final int STATE_DRAGGING_2FINGERS = STATE_DRAGGING | FLAG_2FINGERS; |
| private static final int STATE_PINCH_2FINGERS = |
| STATE_TOUCH_EXPLORING_2FINGER | FLAG_MOVING_DIFF_DIRECTION; |
| private static final float DEFAULT_X = 301f; |
| private static final float DEFAULT_Y = 299f; |
| |
| private EventStreamTransformation mCaptor; |
| private MotionEvent mLastEvent; |
| private TouchExplorer mTouchExplorer; |
| private long mLastDownTime = Integer.MIN_VALUE; |
| |
| // mock package-private AccessibilityGestureDetector class |
| @Rule |
| public final DexmakerShareClassLoaderRule mDexmakerShareClassLoaderRule = |
| new DexmakerShareClassLoaderRule(); |
| |
| /** |
| * {@link TouchExplorer#sendDownForAllNotInjectedPointers} injecting events with the same object |
| * is resulting {@link ArgumentCaptor} to capture events with last state. Before implementation |
| * change, this helper class will save copies to verify the result. |
| */ |
| private class EventCaptor implements EventStreamTransformation { |
| List<MotionEvent> mEvents = new ArrayList<>(); |
| |
| @Override |
| public void onMotionEvent(MotionEvent event, MotionEvent rawEvent, int policyFlags) { |
| mEvents.add(0, event.copy()); |
| } |
| |
| @Override |
| public void setNext(EventStreamTransformation next) { |
| } |
| |
| @Override |
| public EventStreamTransformation getNext() { |
| return null; |
| } |
| } |
| |
| @Before |
| public void setUp() { |
| Context context = InstrumentationRegistry.getContext(); |
| AccessibilityManagerService ams = new AccessibilityManagerService(context); |
| AccessibilityGestureDetector detector = mock(AccessibilityGestureDetector.class); |
| mCaptor = new EventCaptor(); |
| mTouchExplorer = new TouchExplorer(context, ams, detector); |
| mTouchExplorer.setNext(mCaptor); |
| } |
| |
| @Test |
| public void testTwoFingersMove_shouldDelegatingAndInjectActionDownPointerDown() { |
| goFromStateClearTo(STATE_MOVING_2FINGERS); |
| |
| assertState(STATE_DELEGATING); |
| assertCapturedEvents( |
| MotionEvent.ACTION_DOWN, |
| MotionEvent.ACTION_POINTER_DOWN); |
| assertCapturedEventsNoHistory(); |
| } |
| |
| @Test |
| public void testTwoFingersDrag_shouldDraggingAndActionDown() { |
| goFromStateClearTo(STATE_DRAGGING_2FINGERS); |
| |
| assertState(STATE_DRAGGING); |
| assertCapturedEvents(MotionEvent.ACTION_DOWN); |
| assertCapturedEventsNoHistory(); |
| } |
| |
| @Test |
| public void testTwoFingersNotDrag_shouldDelegatingAndActionUpDownPointerDown() { |
| // only from dragging state, and withMoveHistory no dragging |
| goFromStateClearTo(STATE_PINCH_2FINGERS); |
| |
| assertState(STATE_DELEGATING); |
| assertCapturedEvents( |
| /* goto dragging state */ MotionEvent.ACTION_DOWN, |
| /* leave dragging state */ MotionEvent.ACTION_UP, |
| MotionEvent.ACTION_DOWN, |
| MotionEvent.ACTION_POINTER_DOWN); |
| assertCapturedEventsNoHistory(); |
| } |
| |
| @Test |
| public void testThreeFingersMove_shouldDelegatingAnd3ActionPointerDown() { |
| goFromStateClearTo(STATE_MOVING_3FINGERS); |
| |
| assertState(STATE_DELEGATING); |
| assertCapturedEvents( |
| MotionEvent.ACTION_DOWN, |
| MotionEvent.ACTION_POINTER_DOWN, |
| MotionEvent.ACTION_POINTER_DOWN); |
| assertCapturedEventsNoHistory(); |
| } |
| |
| private static MotionEvent fromTouchscreen(MotionEvent ev) { |
| ev.setSource(InputDevice.SOURCE_TOUCHSCREEN); |
| return ev; |
| } |
| |
| private static PointF p(int x, int y) { |
| return new PointF(x, y); |
| } |
| |
| private void goFromStateClearTo(int state) { |
| try { |
| switch (state) { |
| case STATE_CLEAR: { |
| mTouchExplorer.onDestroy(); |
| } |
| break; |
| case STATE_TOUCH_EXPLORING_1FINGER: { |
| send(downEvent()); |
| } |
| break; |
| case STATE_TOUCH_EXPLORING_2FINGER: { |
| goFromStateClearTo(STATE_TOUCH_EXPLORING_1FINGER); |
| send(pointerDownEvent()); |
| } |
| break; |
| case STATE_TOUCH_EXPLORING_3FINGER: { |
| goFromStateClearTo(STATE_TOUCH_EXPLORING_2FINGER); |
| send(thirdPointerDownEvent()); |
| } |
| break; |
| case STATE_MOVING_2FINGERS: { |
| goFromStateClearTo(STATE_TOUCH_EXPLORING_2FINGER); |
| moveEachPointers(mLastEvent, p(10, 0), p(5, 10)); |
| send(mLastEvent); |
| } |
| break; |
| case STATE_DRAGGING_2FINGERS: { |
| goFromStateClearTo(STATE_TOUCH_EXPLORING_2FINGER); |
| moveEachPointers(mLastEvent, p(10, 0), p(10, 0)); |
| send(mLastEvent); |
| } |
| break; |
| case STATE_PINCH_2FINGERS: { |
| goFromStateClearTo(STATE_DRAGGING_2FINGERS); |
| moveEachPointers(mLastEvent, p(10, 0), p(-10, 1)); |
| send(mLastEvent); |
| } |
| break; |
| case STATE_MOVING_3FINGERS: { |
| goFromStateClearTo(STATE_TOUCH_EXPLORING_3FINGER); |
| moveEachPointers(mLastEvent, p(1, 0), p(1, 0), p(1, 0)); |
| send(mLastEvent); |
| } |
| break; |
| default: |
| throw new IllegalArgumentException("Illegal state: " + state); |
| } |
| } catch (Throwable t) { |
| throw new RuntimeException("Failed to go to state " |
| + TouchState.getStateSymbolicName(state), t); |
| } |
| } |
| |
| private void send(MotionEvent event) { |
| final MotionEvent sendEvent = fromTouchscreen(event); |
| mLastEvent = sendEvent; |
| try { |
| mTouchExplorer.onMotionEvent(sendEvent, sendEvent, /* policyFlags */ 0); |
| } catch (Throwable t) { |
| throw new RuntimeException("Exception while handling " + sendEvent, t); |
| } |
| } |
| |
| private void assertState(int expect) { |
| assertEquals( |
| TouchState.getStateSymbolicName(expect), |
| TouchState.getStateSymbolicName(mTouchExplorer.getState().getState())); |
| } |
| |
| private void assertCapturedEvents(int... actionsInOrder) { |
| final int eventCount = actionsInOrder.length; |
| assertEquals(eventCount, getCapturedEvents().size()); |
| for (int i = 0; i < eventCount; i++) { |
| assertEquals(actionsInOrder[eventCount - i - 1], getCapturedEvent(i).getActionMasked()); |
| } |
| } |
| |
| private void assertCapturedEventsNoHistory() { |
| for (MotionEvent e : getCapturedEvents()) { |
| assertEquals(0, e.getHistorySize()); |
| } |
| } |
| |
| private MotionEvent getCapturedEvent(int index) { |
| return getCapturedEvents().get(index); |
| } |
| |
| private List<MotionEvent> getCapturedEvents() { |
| return ((EventCaptor) mCaptor).mEvents; |
| } |
| |
| private MotionEvent downEvent() { |
| mLastDownTime = SystemClock.uptimeMillis(); |
| return fromTouchscreen( |
| MotionEvent.obtain(mLastDownTime, mLastDownTime, MotionEvent.ACTION_DOWN, DEFAULT_X, |
| DEFAULT_Y, 0)); |
| } |
| |
| private MotionEvent pointerDownEvent() { |
| final int secondPointerId = 0x0100; |
| final int action = MotionEvent.ACTION_POINTER_DOWN | secondPointerId; |
| final float[] x = new float[]{DEFAULT_X, DEFAULT_X + 29}; |
| final float[] y = new float[]{DEFAULT_Y, DEFAULT_Y + 28}; |
| return manyPointerEvent(action, x, y); |
| } |
| |
| private MotionEvent thirdPointerDownEvent() { |
| final int thirdPointerId = 0x0200; |
| final int action = MotionEvent.ACTION_POINTER_DOWN | thirdPointerId; |
| final float[] x = new float[]{DEFAULT_X, DEFAULT_X + 29, DEFAULT_X + 59}; |
| final float[] y = new float[]{DEFAULT_Y, DEFAULT_Y + 28, DEFAULT_Y + 58}; |
| return manyPointerEvent(action, x, y); |
| } |
| |
| private void moveEachPointers(MotionEvent event, PointF... points) { |
| final float[] x = new float[points.length]; |
| final float[] y = new float[points.length]; |
| for (int i = 0; i < points.length; i++) { |
| x[i] = event.getX(i) + points[i].x; |
| y[i] = event.getY(i) + points[i].y; |
| } |
| MotionEvent newEvent = manyPointerEvent(MotionEvent.ACTION_MOVE, x, y); |
| event.setAction(MotionEvent.ACTION_MOVE); |
| // add history count |
| event.addBatch(newEvent); |
| } |
| |
| private MotionEvent manyPointerEvent(int action, float[] x, float[] y) { |
| return manyPointerEvent(action, x, y, mLastDownTime); |
| } |
| |
| private MotionEvent manyPointerEvent(int action, float[] x, float[] y, long downTime) { |
| final int len = x.length; |
| |
| final MotionEvent.PointerProperties[] pp = new MotionEvent.PointerProperties[len]; |
| for (int i = 0; i < len; i++) { |
| MotionEvent.PointerProperties pointerProperty = new MotionEvent.PointerProperties(); |
| pointerProperty.id = i; |
| pointerProperty.toolType = MotionEvent.TOOL_TYPE_FINGER; |
| pp[i] = pointerProperty; |
| } |
| |
| final MotionEvent.PointerCoords[] pc = new MotionEvent.PointerCoords[len]; |
| for (int i = 0; i < len; i++) { |
| MotionEvent.PointerCoords pointerCoord = new MotionEvent.PointerCoords(); |
| pointerCoord.x = x[i]; |
| pointerCoord.y = y[i]; |
| pc[i] = pointerCoord; |
| } |
| |
| return MotionEvent.obtain( |
| /* downTime */ SystemClock.uptimeMillis(), |
| /* eventTime */ downTime, |
| /* action */ action, |
| /* pointerCount */ pc.length, |
| /* pointerProperties */ pp, |
| /* pointerCoords */ pc, |
| /* metaState */ 0, |
| /* buttonState */ 0, |
| /* xPrecision */ 1.0f, |
| /* yPrecision */ 1.0f, |
| /* deviceId */ 0, |
| /* edgeFlags */ 0, |
| /* source */ InputDevice.SOURCE_TOUCHSCREEN, |
| /* flags */ 0); |
| } |
| } |