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/*
* Copyright (C) 2016 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;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertThat;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.assertFalse;
import static org.mockito.Matchers.anyInt;
import static org.mockito.Matchers.anyObject;
import static org.mockito.Matchers.argThat;
import static org.mockito.Matchers.eq;
import static org.mockito.Mockito.doAnswer;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.verifyNoMoreInteractions;
import static org.mockito.Mockito.when;
import android.animation.ValueAnimator;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.IntentFilter;
import android.content.res.Resources;
import android.graphics.PointF;
import android.graphics.Rect;
import android.graphics.Region;
import android.os.Handler;
import android.os.Looper;
import android.os.Message;
import android.support.test.runner.AndroidJUnit4;
import android.view.MagnificationSpec;
import android.view.WindowManagerInternal;
import android.view.WindowManagerInternal.MagnificationCallbacks;
import com.android.internal.R;
import org.hamcrest.CoreMatchers;
import org.hamcrest.Description;
import org.hamcrest.TypeSafeMatcher;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.ArgumentCaptor;
import org.mockito.Mockito;
import org.mockito.invocation.InvocationOnMock;
import org.mockito.stubbing.Answer;
import java.util.Locale;
@RunWith(AndroidJUnit4.class)
public class MagnificationControllerTest {
static final Rect INITIAL_MAGNIFICATION_BOUNDS = new Rect(0, 0, 100, 200);
static final PointF INITIAL_MAGNIFICATION_BOUNDS_CENTER = new PointF(
INITIAL_MAGNIFICATION_BOUNDS.centerX(), INITIAL_MAGNIFICATION_BOUNDS.centerY());
static final PointF INITIAL_BOUNDS_UPPER_LEFT_2X_CENTER = new PointF(25, 50);
static final PointF INITIAL_BOUNDS_LOWER_RIGHT_2X_CENTER = new PointF(75, 150);
static final Rect OTHER_MAGNIFICATION_BOUNDS = new Rect(100, 200, 500, 600);
static final PointF OTHER_BOUNDS_LOWER_RIGHT_2X_CENTER = new PointF(400, 500);
static final Region INITIAL_MAGNIFICATION_REGION = new Region(INITIAL_MAGNIFICATION_BOUNDS);
static final Region OTHER_REGION = new Region(OTHER_MAGNIFICATION_BOUNDS);
static final int SERVICE_ID_1 = 1;
static final int SERVICE_ID_2 = 2;
final Context mMockContext = mock(Context.class);
final AccessibilityManagerService mMockAms = mock(AccessibilityManagerService.class);
final WindowManagerInternal mMockWindowManager = mock(WindowManagerInternal.class);
final MessageCapturingHandler mMessageCapturingHandler =
new MessageCapturingHandler(new Handler.Callback() {
@Override
public boolean handleMessage(Message msg) {
return mMagnificationController.handleMessage(msg);
}
});
final ArgumentCaptor<MagnificationSpec> mMagnificationSpecCaptor =
ArgumentCaptor.forClass(MagnificationSpec.class);
final ValueAnimator mMockValueAnimator = mock(ValueAnimator.class);
MagnificationController.SettingsBridge mMockSettingsBridge;
MagnificationController mMagnificationController;
ValueAnimator.AnimatorUpdateListener mTargetAnimationListener;
@BeforeClass
public static void oneTimeInitialization() {
if (Looper.myLooper() == null) {
Looper.prepare();
}
}
@Before
public void setUp() {
when(mMockContext.getMainLooper()).thenReturn(Looper.myLooper());
Resources mockResources = mock(Resources.class);
when(mMockContext.getResources()).thenReturn(mockResources);
when(mockResources.getInteger(R.integer.config_longAnimTime))
.thenReturn(1000);
mMockSettingsBridge = mock(MagnificationController.SettingsBridge.class);
mMagnificationController = new MagnificationController(mMockContext, mMockAms, new Object(),
mMessageCapturingHandler, mMockWindowManager, mMockValueAnimator,
mMockSettingsBridge);
doAnswer(new Answer<Void>() {
@Override
public Void answer(InvocationOnMock invocationOnMock) throws Throwable {
Object[] args = invocationOnMock.getArguments();
Region regionArg = (Region) args[0];
regionArg.set(INITIAL_MAGNIFICATION_REGION);
return null;
}
}).when(mMockWindowManager).getMagnificationRegion((Region) anyObject());
ArgumentCaptor<ValueAnimator.AnimatorUpdateListener> listenerArgumentCaptor =
ArgumentCaptor.forClass(ValueAnimator.AnimatorUpdateListener.class);
verify(mMockValueAnimator).addUpdateListener(listenerArgumentCaptor.capture());
mTargetAnimationListener = listenerArgumentCaptor.getValue();
Mockito.reset(mMockValueAnimator); // Ignore other initialization
}
@Test
public void testRegister_WindowManagerAndContextRegisterListeners() {
mMagnificationController.register();
verify(mMockContext).registerReceiver(
(BroadcastReceiver) anyObject(), (IntentFilter) anyObject());
verify(mMockWindowManager).setMagnificationCallbacks((MagnificationCallbacks) anyObject());
assertTrue(mMagnificationController.isRegisteredLocked());
}
@Test
public void testRegister_WindowManagerAndContextUnregisterListeners() {
mMagnificationController.register();
mMagnificationController.unregister();
verify(mMockContext).unregisterReceiver((BroadcastReceiver) anyObject());
verify(mMockWindowManager).setMagnificationCallbacks(null);
assertFalse(mMagnificationController.isRegisteredLocked());
}
@Test
public void testInitialState_noMagnificationAndMagnificationRegionReadFromWindowManager() {
mMagnificationController.register();
MagnificationSpec expectedInitialSpec = getMagnificationSpec(1.0f, 0.0f, 0.0f);
Region initialMagRegion = new Region();
Rect initialBounds = new Rect();
assertEquals(expectedInitialSpec, getCurrentMagnificationSpec());
mMagnificationController.getMagnificationRegion(initialMagRegion);
mMagnificationController.getMagnificationBounds(initialBounds);
assertEquals(INITIAL_MAGNIFICATION_REGION, initialMagRegion);
assertEquals(INITIAL_MAGNIFICATION_BOUNDS, initialBounds);
assertEquals(INITIAL_MAGNIFICATION_BOUNDS.centerX(),
mMagnificationController.getCenterX(), 0.0f);
assertEquals(INITIAL_MAGNIFICATION_BOUNDS.centerY(),
mMagnificationController.getCenterY(), 0.0f);
}
@Test
public void testNotRegistered_publicMethodsShouldBeBenign() {
assertFalse(mMagnificationController.isMagnifying());
assertFalse(mMagnificationController.magnificationRegionContains(100, 100));
assertFalse(mMagnificationController.reset(true));
assertFalse(mMagnificationController.setScale(2, 100, 100, true, 0));
assertFalse(mMagnificationController.setCenter(100, 100, false, 1));
assertFalse(mMagnificationController.setScaleAndCenter(1.5f, 100, 100, false, 2));
assertTrue(mMagnificationController.getIdOfLastServiceToMagnify() < 0);
mMagnificationController.getMagnificationRegion(new Region());
mMagnificationController.getMagnificationBounds(new Rect());
mMagnificationController.getScale();
mMagnificationController.getOffsetX();
mMagnificationController.getOffsetY();
mMagnificationController.getCenterX();
mMagnificationController.getCenterY();
mMagnificationController.offsetMagnifiedRegion(50, 50, 1);
mMagnificationController.unregister();
}
@Test
public void testSetScale_noAnimation_shouldGoStraightToWindowManagerAndUpdateState() {
mMagnificationController.register();
final float scale = 2.0f;
final PointF center = INITIAL_MAGNIFICATION_BOUNDS_CENTER;
final PointF offsets = computeOffsets(INITIAL_MAGNIFICATION_BOUNDS, center, scale);
assertTrue(mMagnificationController
.setScale(scale, center.x, center.y, false, SERVICE_ID_1));
final MagnificationSpec expectedSpec = getMagnificationSpec(scale, offsets);
verify(mMockWindowManager).setMagnificationSpec(argThat(closeTo(expectedSpec)));
assertThat(getCurrentMagnificationSpec(), closeTo(expectedSpec));
assertEquals(center.x, mMagnificationController.getCenterX(), 0.0);
assertEquals(center.y, mMagnificationController.getCenterY(), 0.0);
verify(mMockValueAnimator, times(0)).start();
}
@Test
public void testSetScale_withPivotAndAnimation_stateChangesAndAnimationHappens() {
mMagnificationController.register();
MagnificationSpec startSpec = getCurrentMagnificationSpec();
float scale = 2.0f;
PointF pivotPoint = INITIAL_BOUNDS_LOWER_RIGHT_2X_CENTER;
assertTrue(mMagnificationController
.setScale(scale, pivotPoint.x, pivotPoint.y, true, SERVICE_ID_1));
// New center should be halfway between original center and pivot
PointF newCenter = new PointF((pivotPoint.x + INITIAL_MAGNIFICATION_BOUNDS.centerX()) / 2,
(pivotPoint.y + INITIAL_MAGNIFICATION_BOUNDS.centerY()) / 2);
PointF offsets = computeOffsets(INITIAL_MAGNIFICATION_BOUNDS, newCenter, scale);
MagnificationSpec endSpec = getMagnificationSpec(scale, offsets);
assertEquals(newCenter.x, mMagnificationController.getCenterX(), 0.5);
assertEquals(newCenter.y, mMagnificationController.getCenterY(), 0.5);
assertThat(getCurrentMagnificationSpec(), closeTo(endSpec));
verify(mMockValueAnimator).start();
// Initial value
when(mMockValueAnimator.getAnimatedFraction()).thenReturn(0.0f);
mTargetAnimationListener.onAnimationUpdate(mMockValueAnimator);
verify(mMockWindowManager).setMagnificationSpec(startSpec);
// Intermediate point
Mockito.reset(mMockWindowManager);
float fraction = 0.5f;
when(mMockValueAnimator.getAnimatedFraction()).thenReturn(fraction);
mTargetAnimationListener.onAnimationUpdate(mMockValueAnimator);
verify(mMockWindowManager).setMagnificationSpec(
argThat(closeTo(getInterpolatedMagSpec(startSpec, endSpec, fraction))));
// Final value
Mockito.reset(mMockWindowManager);
when(mMockValueAnimator.getAnimatedFraction()).thenReturn(1.0f);
mTargetAnimationListener.onAnimationUpdate(mMockValueAnimator);
verify(mMockWindowManager).setMagnificationSpec(argThat(closeTo(endSpec)));
}
@Test
public void testSetCenter_whileMagnifying_noAnimation_centerMoves() {
mMagnificationController.register();
// First zoom in
float scale = 2.0f;
assertTrue(mMagnificationController.setScale(scale,
INITIAL_MAGNIFICATION_BOUNDS.centerX(), INITIAL_MAGNIFICATION_BOUNDS.centerY(),
false, SERVICE_ID_1));
Mockito.reset(mMockWindowManager);
PointF newCenter = INITIAL_BOUNDS_LOWER_RIGHT_2X_CENTER;
assertTrue(mMagnificationController
.setCenter(newCenter.x, newCenter.y, false, SERVICE_ID_1));
PointF expectedOffsets = computeOffsets(INITIAL_MAGNIFICATION_BOUNDS, newCenter, scale);
MagnificationSpec expectedSpec = getMagnificationSpec(scale, expectedOffsets);
verify(mMockWindowManager).setMagnificationSpec(argThat(closeTo(expectedSpec)));
assertEquals(newCenter.x, mMagnificationController.getCenterX(), 0.0);
assertEquals(newCenter.y, mMagnificationController.getCenterY(), 0.0);
verify(mMockValueAnimator, times(0)).start();
}
@Test
public void testSetScaleAndCenter_animated_stateChangesAndAnimationHappens() {
mMagnificationController.register();
MagnificationSpec startSpec = getCurrentMagnificationSpec();
float scale = 2.5f;
PointF newCenter = INITIAL_BOUNDS_LOWER_RIGHT_2X_CENTER;
PointF offsets = computeOffsets(INITIAL_MAGNIFICATION_BOUNDS, newCenter, scale);
MagnificationSpec endSpec = getMagnificationSpec(scale, offsets);
assertTrue(mMagnificationController.setScaleAndCenter(scale, newCenter.x, newCenter.y,
true, SERVICE_ID_1));
assertEquals(newCenter.x, mMagnificationController.getCenterX(), 0.5);
assertEquals(newCenter.y, mMagnificationController.getCenterY(), 0.5);
assertThat(getCurrentMagnificationSpec(), closeTo(endSpec));
verify(mMockAms).notifyMagnificationChanged(
INITIAL_MAGNIFICATION_REGION, scale, newCenter.x, newCenter.y);
verify(mMockValueAnimator).start();
// Initial value
when(mMockValueAnimator.getAnimatedFraction()).thenReturn(0.0f);
mTargetAnimationListener.onAnimationUpdate(mMockValueAnimator);
verify(mMockWindowManager).setMagnificationSpec(startSpec);
// Intermediate point
Mockito.reset(mMockWindowManager);
float fraction = 0.33f;
when(mMockValueAnimator.getAnimatedFraction()).thenReturn(fraction);
mTargetAnimationListener.onAnimationUpdate(mMockValueAnimator);
verify(mMockWindowManager).setMagnificationSpec(
argThat(closeTo(getInterpolatedMagSpec(startSpec, endSpec, fraction))));
// Final value
Mockito.reset(mMockWindowManager);
when(mMockValueAnimator.getAnimatedFraction()).thenReturn(1.0f);
mTargetAnimationListener.onAnimationUpdate(mMockValueAnimator);
verify(mMockWindowManager).setMagnificationSpec(argThat(closeTo(endSpec)));
}
@Test
public void testSetScaleAndCenter_scaleOutOfBounds_cappedAtLimits() {
mMagnificationController.register();
MagnificationSpec startSpec = getCurrentMagnificationSpec();
PointF newCenter = INITIAL_BOUNDS_LOWER_RIGHT_2X_CENTER;
PointF offsets = computeOffsets(INITIAL_MAGNIFICATION_BOUNDS, newCenter,
MagnificationController.MAX_SCALE);
MagnificationSpec endSpec = getMagnificationSpec(
MagnificationController.MAX_SCALE, offsets);
assertTrue(mMagnificationController.setScaleAndCenter(
MagnificationController.MAX_SCALE + 1.0f,
newCenter.x, newCenter.y, false, SERVICE_ID_1));
assertEquals(newCenter.x, mMagnificationController.getCenterX(), 0.5);
assertEquals(newCenter.y, mMagnificationController.getCenterY(), 0.5);
verify(mMockWindowManager).setMagnificationSpec(argThat(closeTo(endSpec)));
Mockito.reset(mMockWindowManager);
// Verify that we can't zoom below 1x
assertTrue(mMagnificationController.setScaleAndCenter(0.5f,
INITIAL_MAGNIFICATION_BOUNDS_CENTER.x, INITIAL_MAGNIFICATION_BOUNDS_CENTER.y,
false, SERVICE_ID_1));
assertEquals(INITIAL_MAGNIFICATION_BOUNDS_CENTER.x,
mMagnificationController.getCenterX(), 0.5);
assertEquals(INITIAL_MAGNIFICATION_BOUNDS_CENTER.y,
mMagnificationController.getCenterY(), 0.5);
verify(mMockWindowManager).setMagnificationSpec(argThat(closeTo(startSpec)));
}
@Test
public void testSetScaleAndCenter_centerOutOfBounds_cappedAtLimits() {
mMagnificationController.register();
float scale = 2.0f;
// Off the edge to the top and left
assertTrue(mMagnificationController.setScaleAndCenter(
scale, -100f, -200f, false, SERVICE_ID_1));
PointF newCenter = INITIAL_BOUNDS_UPPER_LEFT_2X_CENTER;
PointF newOffsets = computeOffsets(INITIAL_MAGNIFICATION_BOUNDS, newCenter, scale);
assertEquals(newCenter.x, mMagnificationController.getCenterX(), 0.5);
assertEquals(newCenter.y, mMagnificationController.getCenterY(), 0.5);
verify(mMockWindowManager).setMagnificationSpec(
argThat(closeTo(getMagnificationSpec(scale, newOffsets))));
Mockito.reset(mMockWindowManager);
// Off the edge to the bottom and right
assertTrue(mMagnificationController.setScaleAndCenter(scale,
INITIAL_MAGNIFICATION_BOUNDS.right + 1, INITIAL_MAGNIFICATION_BOUNDS.bottom + 1,
false, SERVICE_ID_1));
newCenter = INITIAL_BOUNDS_LOWER_RIGHT_2X_CENTER;
newOffsets = computeOffsets(INITIAL_MAGNIFICATION_BOUNDS, newCenter, scale);
assertEquals(newCenter.x, mMagnificationController.getCenterX(), 0.5);
assertEquals(newCenter.y, mMagnificationController.getCenterY(), 0.5);
verify(mMockWindowManager).setMagnificationSpec(
argThat(closeTo(getMagnificationSpec(scale, newOffsets))));
}
@Test
public void testMagnificationRegionChanged_serviceNotified() {
mMagnificationController.register();
MagnificationCallbacks callbacks = getMagnificationCallbacks();
callbacks.onMagnificationRegionChanged(OTHER_REGION);
mMessageCapturingHandler.sendAllMessages();
verify(mMockAms).notifyMagnificationChanged(OTHER_REGION, 1.0f,
OTHER_MAGNIFICATION_BOUNDS.centerX(), OTHER_MAGNIFICATION_BOUNDS.centerY());
}
@Test
public void testOffsetMagnifiedRegion_whileMagnifying_offsetsMove() {
mMagnificationController.register();
PointF startCenter = INITIAL_MAGNIFICATION_BOUNDS_CENTER;
float scale = 2.0f;
PointF startOffsets = computeOffsets(INITIAL_MAGNIFICATION_BOUNDS, startCenter, scale);
// First zoom in
assertTrue(mMagnificationController
.setScaleAndCenter(scale, startCenter.x, startCenter.y, false, SERVICE_ID_1));
Mockito.reset(mMockWindowManager);
PointF newCenter = INITIAL_BOUNDS_LOWER_RIGHT_2X_CENTER;
PointF newOffsets = computeOffsets(INITIAL_MAGNIFICATION_BOUNDS, newCenter, scale);
mMagnificationController.offsetMagnifiedRegion(
startOffsets.x - newOffsets.x, startOffsets.y - newOffsets.y, SERVICE_ID_1);
MagnificationSpec expectedSpec = getMagnificationSpec(scale, newOffsets);
verify(mMockWindowManager).setMagnificationSpec(argThat(closeTo(expectedSpec)));
assertEquals(newCenter.x, mMagnificationController.getCenterX(), 0.0);
assertEquals(newCenter.y, mMagnificationController.getCenterY(), 0.0);
verify(mMockValueAnimator, times(0)).start();
}
@Test
public void testOffsetMagnifiedRegion_whileNotMagnifying_hasNoEffect() {
mMagnificationController.register();
Mockito.reset(mMockWindowManager);
MagnificationSpec startSpec = getCurrentMagnificationSpec();
mMagnificationController.offsetMagnifiedRegion(10, 10, SERVICE_ID_1);
assertThat(getCurrentMagnificationSpec(), closeTo(startSpec));
mMagnificationController.offsetMagnifiedRegion(-10, -10, SERVICE_ID_1);
assertThat(getCurrentMagnificationSpec(), closeTo(startSpec));
verifyNoMoreInteractions(mMockWindowManager);
}
@Test
public void testOffsetMagnifiedRegion_whileMagnifyingButAtEdge_hasNoEffect() {
mMagnificationController.register();
float scale = 2.0f;
// Upper left edges
PointF ulCenter = INITIAL_BOUNDS_UPPER_LEFT_2X_CENTER;
assertTrue(mMagnificationController
.setScaleAndCenter(scale, ulCenter.x, ulCenter.y, false, SERVICE_ID_1));
Mockito.reset(mMockWindowManager);
MagnificationSpec ulSpec = getCurrentMagnificationSpec();
mMagnificationController.offsetMagnifiedRegion(-10, -10, SERVICE_ID_1);
assertThat(getCurrentMagnificationSpec(), closeTo(ulSpec));
verifyNoMoreInteractions(mMockWindowManager);
// Lower right edges
PointF lrCenter = INITIAL_BOUNDS_LOWER_RIGHT_2X_CENTER;
assertTrue(mMagnificationController
.setScaleAndCenter(scale, lrCenter.x, lrCenter.y, false, SERVICE_ID_1));
Mockito.reset(mMockWindowManager);
MagnificationSpec lrSpec = getCurrentMagnificationSpec();
mMagnificationController.offsetMagnifiedRegion(10, 10, SERVICE_ID_1);
assertThat(getCurrentMagnificationSpec(), closeTo(lrSpec));
verifyNoMoreInteractions(mMockWindowManager);
}
@Test
public void testGetIdOfLastServiceToChange_returnsCorrectValue() {
mMagnificationController.register();
PointF startCenter = INITIAL_MAGNIFICATION_BOUNDS_CENTER;
assertTrue(mMagnificationController
.setScale(2.0f, startCenter.x, startCenter.y, false, SERVICE_ID_1));
assertEquals(SERVICE_ID_1, mMagnificationController.getIdOfLastServiceToMagnify());
assertTrue(mMagnificationController
.setScale(1.5f, startCenter.x, startCenter.y, false, SERVICE_ID_2));
assertEquals(SERVICE_ID_2, mMagnificationController.getIdOfLastServiceToMagnify());
}
@Test
public void testSetUserId_resetsOnlyIfIdChanges() {
final int userId1 = 1;
final int userId2 = 2;
mMagnificationController.register();
mMagnificationController.setUserId(userId1);
PointF startCenter = INITIAL_MAGNIFICATION_BOUNDS_CENTER;
float scale = 2.0f;
mMagnificationController.setScale(scale, startCenter.x, startCenter.y, false, SERVICE_ID_1);
mMagnificationController.setUserId(userId1);
assertTrue(mMagnificationController.isMagnifying());
mMagnificationController.setUserId(userId2);
assertFalse(mMagnificationController.isMagnifying());
}
@Test
public void testResetIfNeeded_doesWhatItSays() {
mMagnificationController.register();
zoomIn2xToMiddle();
assertTrue(mMagnificationController.resetIfNeeded(false));
verify(mMockAms).notifyMagnificationChanged(
eq(INITIAL_MAGNIFICATION_REGION), eq(1.0f), anyInt(), anyInt());
assertFalse(mMagnificationController.isMagnifying());
assertFalse(mMagnificationController.resetIfNeeded(false));
}
@Test
public void testTurnScreenOff_resetsMagnification() {
mMagnificationController.register();
ArgumentCaptor<BroadcastReceiver> broadcastReceiverCaptor =
ArgumentCaptor.forClass(BroadcastReceiver.class);
verify(mMockContext).registerReceiver(
broadcastReceiverCaptor.capture(), (IntentFilter) anyObject());
BroadcastReceiver br = broadcastReceiverCaptor.getValue();
zoomIn2xToMiddle();
br.onReceive(mMockContext, null);
mMessageCapturingHandler.sendAllMessages();
assertFalse(mMagnificationController.isMagnifying());
}
@Test
public void testUserContextChange_resetsMagnification() {
mMagnificationController.register();
MagnificationCallbacks callbacks = getMagnificationCallbacks();
zoomIn2xToMiddle();
callbacks.onUserContextChanged();
mMessageCapturingHandler.sendAllMessages();
assertFalse(mMagnificationController.isMagnifying());
}
@Test
public void testRotation_resetsMagnification() {
mMagnificationController.register();
MagnificationCallbacks callbacks = getMagnificationCallbacks();
zoomIn2xToMiddle();
mMessageCapturingHandler.sendAllMessages();
assertTrue(mMagnificationController.isMagnifying());
callbacks.onRotationChanged(0);
mMessageCapturingHandler.sendAllMessages();
assertFalse(mMagnificationController.isMagnifying());
}
@Test
public void testBoundsChange_whileMagnifyingWithCompatibleSpec_noSpecChange() {
// Going from a small region to a large one leads to no issues
mMagnificationController.register();
zoomIn2xToMiddle();
MagnificationSpec startSpec = getCurrentMagnificationSpec();
MagnificationCallbacks callbacks = getMagnificationCallbacks();
Mockito.reset(mMockWindowManager);
callbacks.onMagnificationRegionChanged(OTHER_REGION);
mMessageCapturingHandler.sendAllMessages();
assertThat(getCurrentMagnificationSpec(), closeTo(startSpec));
verifyNoMoreInteractions(mMockWindowManager);
}
@Test
public void testBoundsChange_whileZoomingWithCompatibleSpec_noSpecChange() {
mMagnificationController.register();
PointF startCenter = INITIAL_MAGNIFICATION_BOUNDS_CENTER;
float scale = 2.0f;
mMagnificationController.setScale(scale, startCenter.x, startCenter.y, true, SERVICE_ID_1);
MagnificationSpec startSpec = getCurrentMagnificationSpec();
MagnificationCallbacks callbacks = getMagnificationCallbacks();
Mockito.reset(mMockWindowManager);
callbacks.onMagnificationRegionChanged(OTHER_REGION);
mMessageCapturingHandler.sendAllMessages();
assertThat(getCurrentMagnificationSpec(), closeTo(startSpec));
verifyNoMoreInteractions(mMockWindowManager);
}
@Test
public void testBoundsChange_whileMagnifyingWithIncompatibleSpec_offsetsConstrained() {
// In a large region, pan to the farthest point possible
mMagnificationController.register();
MagnificationCallbacks callbacks = getMagnificationCallbacks();
callbacks.onMagnificationRegionChanged(OTHER_REGION);
mMessageCapturingHandler.sendAllMessages();
PointF startCenter = OTHER_BOUNDS_LOWER_RIGHT_2X_CENTER;
float scale = 2.0f;
mMagnificationController.setScale(scale, startCenter.x, startCenter.y, false, SERVICE_ID_1);
MagnificationSpec startSpec = getCurrentMagnificationSpec();
verify(mMockWindowManager).setMagnificationSpec(argThat(closeTo(startSpec)));
Mockito.reset(mMockWindowManager);
callbacks.onMagnificationRegionChanged(INITIAL_MAGNIFICATION_REGION);
mMessageCapturingHandler.sendAllMessages();
MagnificationSpec endSpec = getCurrentMagnificationSpec();
assertThat(endSpec, CoreMatchers.not(closeTo(startSpec)));
PointF expectedOffsets = computeOffsets(INITIAL_MAGNIFICATION_BOUNDS,
INITIAL_BOUNDS_LOWER_RIGHT_2X_CENTER, scale);
assertThat(endSpec, closeTo(getMagnificationSpec(scale, expectedOffsets)));
verify(mMockWindowManager).setMagnificationSpec(argThat(closeTo(endSpec)));
}
@Test
public void testBoundsChange_whileZoomingWithIncompatibleSpec_jumpsToCompatibleSpec() {
mMagnificationController.register();
MagnificationCallbacks callbacks = getMagnificationCallbacks();
callbacks.onMagnificationRegionChanged(OTHER_REGION);
mMessageCapturingHandler.sendAllMessages();
PointF startCenter = OTHER_BOUNDS_LOWER_RIGHT_2X_CENTER;
float scale = 2.0f;
mMagnificationController.setScale(scale, startCenter.x, startCenter.y, true, SERVICE_ID_1);
MagnificationSpec startSpec = getCurrentMagnificationSpec();
when (mMockValueAnimator.isRunning()).thenReturn(true);
callbacks.onMagnificationRegionChanged(INITIAL_MAGNIFICATION_REGION);
mMessageCapturingHandler.sendAllMessages();
verify(mMockValueAnimator).cancel();
MagnificationSpec endSpec = getCurrentMagnificationSpec();
assertThat(endSpec, CoreMatchers.not(closeTo(startSpec)));
PointF expectedOffsets = computeOffsets(INITIAL_MAGNIFICATION_BOUNDS,
INITIAL_BOUNDS_LOWER_RIGHT_2X_CENTER, scale);
assertThat(endSpec, closeTo(getMagnificationSpec(scale, expectedOffsets)));
verify(mMockWindowManager).setMagnificationSpec(argThat(closeTo(endSpec)));
}
@Test
public void testRequestRectOnScreen_rectAlreadyOnScreen_doesNothing() {
mMagnificationController.register();
zoomIn2xToMiddle();
MagnificationSpec startSpec = getCurrentMagnificationSpec();
MagnificationCallbacks callbacks = getMagnificationCallbacks();
Mockito.reset(mMockWindowManager);
int centerX = (int) INITIAL_MAGNIFICATION_BOUNDS_CENTER.x;
int centerY = (int) INITIAL_MAGNIFICATION_BOUNDS_CENTER.y;
callbacks.onRectangleOnScreenRequested(centerX - 1, centerY - 1, centerX + 1, centerY - 1);
mMessageCapturingHandler.sendAllMessages();
assertThat(getCurrentMagnificationSpec(), closeTo(startSpec));
verifyNoMoreInteractions(mMockWindowManager);
}
@Test
public void testRequestRectOnScreen_rectCanFitOnScreen_pansToGetRectOnScreen() {
mMagnificationController.register();
zoomIn2xToMiddle();
MagnificationCallbacks callbacks = getMagnificationCallbacks();
Mockito.reset(mMockWindowManager);
callbacks.onRectangleOnScreenRequested(0, 0, 1, 1);
mMessageCapturingHandler.sendAllMessages();
MagnificationSpec expectedEndSpec = getMagnificationSpec(2.0f, 0, 0);
assertThat(getCurrentMagnificationSpec(), closeTo(expectedEndSpec));
verify(mMockWindowManager).setMagnificationSpec(argThat(closeTo(expectedEndSpec)));
}
@Test
public void testRequestRectOnScreen_garbageInput_doesNothing() {
mMagnificationController.register();
zoomIn2xToMiddle();
MagnificationSpec startSpec = getCurrentMagnificationSpec();
MagnificationCallbacks callbacks = getMagnificationCallbacks();
Mockito.reset(mMockWindowManager);
callbacks.onRectangleOnScreenRequested(0, 0, -50, -50);
mMessageCapturingHandler.sendAllMessages();
assertThat(getCurrentMagnificationSpec(), closeTo(startSpec));
verifyNoMoreInteractions(mMockWindowManager);
}
@Test
public void testRequestRectOnScreen_rectTooWide_pansToGetStartOnScreenBasedOnLocale() {
Locale.setDefault(new Locale("en", "us"));
mMagnificationController.register();
zoomIn2xToMiddle();
MagnificationCallbacks callbacks = getMagnificationCallbacks();
MagnificationSpec startSpec = getCurrentMagnificationSpec();
Mockito.reset(mMockWindowManager);
Rect wideRect = new Rect(0, 50, 100, 51);
callbacks.onRectangleOnScreenRequested(
wideRect.left, wideRect.top, wideRect.right, wideRect.bottom);
mMessageCapturingHandler.sendAllMessages();
MagnificationSpec expectedEndSpec = getMagnificationSpec(2.0f, 0, startSpec.offsetY);
assertThat(getCurrentMagnificationSpec(), closeTo(expectedEndSpec));
verify(mMockWindowManager).setMagnificationSpec(argThat(closeTo(expectedEndSpec)));
Mockito.reset(mMockWindowManager);
// Repeat with RTL
Locale.setDefault(new Locale("he", "il"));
callbacks.onRectangleOnScreenRequested(
wideRect.left, wideRect.top, wideRect.right, wideRect.bottom);
mMessageCapturingHandler.sendAllMessages();
expectedEndSpec = getMagnificationSpec(2.0f, -100, startSpec.offsetY);
assertThat(getCurrentMagnificationSpec(), closeTo(expectedEndSpec));
verify(mMockWindowManager).setMagnificationSpec(argThat(closeTo(expectedEndSpec)));
}
@Test
public void testRequestRectOnScreen_rectTooTall_pansMinimumToGetTopOnScreen() {
mMagnificationController.register();
zoomIn2xToMiddle();
MagnificationCallbacks callbacks = getMagnificationCallbacks();
MagnificationSpec startSpec = getCurrentMagnificationSpec();
Mockito.reset(mMockWindowManager);
Rect tallRect = new Rect(50, 0, 51, 100);
callbacks.onRectangleOnScreenRequested(
tallRect.left, tallRect.top, tallRect.right, tallRect.bottom);
mMessageCapturingHandler.sendAllMessages();
MagnificationSpec expectedEndSpec = getMagnificationSpec(2.0f, startSpec.offsetX, 0);
assertThat(getCurrentMagnificationSpec(), closeTo(expectedEndSpec));
verify(mMockWindowManager).setMagnificationSpec(argThat(closeTo(expectedEndSpec)));
}
@Test
public void testChangeMagnification_duringAnimation_animatesToNewValue() {
mMagnificationController.register();
MagnificationSpec startSpec = getCurrentMagnificationSpec();
float scale = 2.5f;
PointF firstCenter = INITIAL_BOUNDS_LOWER_RIGHT_2X_CENTER;
MagnificationSpec firstEndSpec = getMagnificationSpec(
scale, computeOffsets(INITIAL_MAGNIFICATION_BOUNDS, firstCenter, scale));
assertTrue(mMagnificationController.setScaleAndCenter(scale, firstCenter.x, firstCenter.y,
true, SERVICE_ID_1));
assertEquals(firstCenter.x, mMagnificationController.getCenterX(), 0.5);
assertEquals(firstCenter.y, mMagnificationController.getCenterY(), 0.5);
assertThat(getCurrentMagnificationSpec(), closeTo(firstEndSpec));
verify(mMockValueAnimator, times(1)).start();
// Initial value
when(mMockValueAnimator.getAnimatedFraction()).thenReturn(0.0f);
mTargetAnimationListener.onAnimationUpdate(mMockValueAnimator);
verify(mMockWindowManager).setMagnificationSpec(startSpec);
verify(mMockAms).notifyMagnificationChanged(
INITIAL_MAGNIFICATION_REGION, scale, firstCenter.x, firstCenter.y);
Mockito.reset(mMockWindowManager);
// Intermediate point
float fraction = 0.33f;
when(mMockValueAnimator.getAnimatedFraction()).thenReturn(fraction);
mTargetAnimationListener.onAnimationUpdate(mMockValueAnimator);
MagnificationSpec intermediateSpec1 =
getInterpolatedMagSpec(startSpec, firstEndSpec, fraction);
verify(mMockWindowManager).setMagnificationSpec(argThat(closeTo(intermediateSpec1)));
Mockito.reset(mMockWindowManager);
PointF newCenter = INITIAL_BOUNDS_UPPER_LEFT_2X_CENTER;
MagnificationSpec newEndSpec = getMagnificationSpec(
scale, computeOffsets(INITIAL_MAGNIFICATION_BOUNDS, newCenter, scale));
assertTrue(mMagnificationController.setCenter(
newCenter.x, newCenter.y, true, SERVICE_ID_1));
// Animation should have been restarted
verify(mMockValueAnimator, times(2)).start();
verify(mMockAms).notifyMagnificationChanged(
INITIAL_MAGNIFICATION_REGION, scale, newCenter.x, newCenter.y);
// New starting point should be where we left off
when(mMockValueAnimator.getAnimatedFraction()).thenReturn(0.0f);
mTargetAnimationListener.onAnimationUpdate(mMockValueAnimator);
verify(mMockWindowManager).setMagnificationSpec(argThat(closeTo(intermediateSpec1)));
Mockito.reset(mMockWindowManager);
// Second intermediate point
fraction = 0.5f;
when(mMockValueAnimator.getAnimatedFraction()).thenReturn(fraction);
mTargetAnimationListener.onAnimationUpdate(mMockValueAnimator);
verify(mMockWindowManager).setMagnificationSpec(
argThat(closeTo(getInterpolatedMagSpec(intermediateSpec1, newEndSpec, fraction))));
Mockito.reset(mMockWindowManager);
// Final value should be the new center
Mockito.reset(mMockWindowManager);
when(mMockValueAnimator.getAnimatedFraction()).thenReturn(1.0f);
mTargetAnimationListener.onAnimationUpdate(mMockValueAnimator);
verify(mMockWindowManager).setMagnificationSpec(argThat(closeTo(newEndSpec)));
}
private void zoomIn2xToMiddle() {
PointF startCenter = INITIAL_MAGNIFICATION_BOUNDS_CENTER;
float scale = 2.0f;
mMagnificationController.setScale(scale, startCenter.x, startCenter.y, false, SERVICE_ID_1);
assertTrue(mMagnificationController.isMagnifying());
}
private MagnificationCallbacks getMagnificationCallbacks() {
ArgumentCaptor<MagnificationCallbacks> magnificationCallbacksCaptor =
ArgumentCaptor.forClass(MagnificationCallbacks.class);
verify(mMockWindowManager)
.setMagnificationCallbacks(magnificationCallbacksCaptor.capture());
return magnificationCallbacksCaptor.getValue();
}
private PointF computeOffsets(Rect magnifiedBounds, PointF center, float scale) {
return new PointF(
magnifiedBounds.centerX() - scale * center.x,
magnifiedBounds.centerY() - scale * center.y);
}
private MagnificationSpec getInterpolatedMagSpec(MagnificationSpec start, MagnificationSpec end,
float fraction) {
MagnificationSpec interpolatedSpec = MagnificationSpec.obtain();
interpolatedSpec.scale = start.scale + fraction * (end.scale - start.scale);
interpolatedSpec.offsetX = start.offsetX + fraction * (end.offsetX - start.offsetX);
interpolatedSpec.offsetY = start.offsetY + fraction * (end.offsetY - start.offsetY);
return interpolatedSpec;
}
private MagnificationSpec getMagnificationSpec(float scale, PointF offsets) {
return getMagnificationSpec(scale, offsets.x, offsets.y);
}
private MagnificationSpec getMagnificationSpec(float scale, float offsetX, float offsetY) {
MagnificationSpec spec = MagnificationSpec.obtain();
spec.scale = scale;
spec.offsetX = offsetX;
spec.offsetY = offsetY;
return spec;
}
private MagnificationSpec getCurrentMagnificationSpec() {
return getMagnificationSpec(mMagnificationController.getScale(),
mMagnificationController.getOffsetX(), mMagnificationController.getOffsetY());
}
private MagSpecMatcher closeTo(MagnificationSpec spec) {
return new MagSpecMatcher(spec, 0.01f, 0.5f);
}
private class MagSpecMatcher extends TypeSafeMatcher<MagnificationSpec> {
final MagnificationSpec mMagSpec;
final float mScaleTolerance;
final float mOffsetTolerance;
MagSpecMatcher(MagnificationSpec spec, float scaleTolerance, float offsetTolerance) {
mMagSpec = spec;
mScaleTolerance = scaleTolerance;
mOffsetTolerance = offsetTolerance;
}
@Override
protected boolean matchesSafely(MagnificationSpec magnificationSpec) {
if (Math.abs(mMagSpec.scale - magnificationSpec.scale) > mScaleTolerance) {
return false;
}
if (Math.abs(mMagSpec.offsetX - magnificationSpec.offsetX) > mOffsetTolerance) {
return false;
}
if (Math.abs(mMagSpec.offsetY - magnificationSpec.offsetY) > mOffsetTolerance) {
return false;
}
return true;
}
@Override
public void describeTo(Description description) {
description.appendText("Match spec: " + mMagSpec);
}
}
}