1 /*
2  * Copyright (C) 2017 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License
15  */
16 
17 package android.server.wm;
18 
19 import static androidx.test.InstrumentationRegistry.getInstrumentation;
20 
21 import static org.hamcrest.Matchers.greaterThanOrEqualTo;
22 import static org.hamcrest.Matchers.lessThanOrEqualTo;
23 
24 import android.app.Activity;
25 import android.content.ComponentName;
26 import android.graphics.Point;
27 import android.graphics.Rect;
28 import android.view.Display;
29 import android.view.WindowManager;
30 
31 import androidx.test.rule.ActivityTestRule;
32 
33 import com.android.compatibility.common.util.PollingCheck;
34 
35 import org.hamcrest.Matcher;
36 import org.junit.Before;
37 
38 class AspectRatioTestsBase extends ActivityManagerTestBase {
39     // The delta allowed when comparing two floats for equality. We consider them equal if they are
40     // within two significant digits of each other.
41     private static final float FLOAT_EQUALITY_DELTA = .01f;
42 
43     interface AssertAspectRatioCallback {
assertAspectRatio(float actual, int displayId, Point activitySize, Point displaySize)44         void assertAspectRatio(float actual, int displayId, Point activitySize, Point displaySize);
45     }
46 
runAspectRatioTest(final ComponentName componentName, final AssertAspectRatioCallback callback)47     void runAspectRatioTest(final ComponentName componentName,
48             final AssertAspectRatioCallback callback) {
49         launchActivity(componentName);
50         mWmState.computeState();
51 
52         final int displayId = mWmState.getDisplayByActivity(componentName);
53         final WindowManagerState.Activity activity = mWmState.getActivity(componentName);
54         final WindowManagerState.DisplayContent display = mWmState.getDisplay(displayId);
55 
56         final Rect bounds = activity.getAppBounds();
57         final int shortSide = Math.min(bounds.width(), bounds.height());
58         final int longSide = Math.max(bounds.width(), bounds.height());
59         final float actualAspectRatio = (float) longSide / (float) shortSide;
60 
61         callback.assertAspectRatio(actualAspectRatio, display.mId,
62                 new Point(bounds.width(), bounds.height()),
63                 new Point(display.getAppRect().width(), display.getAppRect().height()));
64     }
65 
runAspectRatioTest(final ActivityTestRule activityRule, final AssertAspectRatioCallback callback)66     void runAspectRatioTest(final ActivityTestRule activityRule,
67             final AssertAspectRatioCallback callback) {
68         final Activity activity = launchActivity(activityRule);
69         PollingCheck.waitFor(activity::hasWindowFocus);
70         try {
71             final Point displaySize = new Point();
72             getDisplay(activity).getSize(displaySize);
73             callback.assertAspectRatio(getActivityAspectRatio(activity),
74                     getDisplay(activity).getDisplayId(),
75                     getActivitySize(activity),
76                     displaySize);
77         } finally {
78             finishActivity(activityRule);
79         }
80 
81         // TODO(b/35810513): All this rotation stuff doesn't really work yet. Need to make sure
82         // context is updated correctly here. Also, what does it mean to be holding a reference to
83         // this activity if changing the orientation will cause a relaunch?
84 //        activity.setRequestedOrientation(SCREEN_ORIENTATION_LANDSCAPE);
85 //        waitForIdle();
86 //        callback.assertAspectRatio(getAspectRatio(activity));
87 //
88 //        activity.setRequestedOrientation(SCREEN_ORIENTATION_PORTRAIT);
89 //        waitForIdle();
90 //        callback.assertAspectRatio(getAspectRatio(activity));
91     }
92 
93     @Before
wakeUpAndUnlock()94     public void wakeUpAndUnlock() {
95         UiDeviceUtils.pressWakeupButton();
96         UiDeviceUtils.pressUnlockButton();
97     }
98 
getDisplayAspectRatio(ComponentName componentName)99     float getDisplayAspectRatio(ComponentName componentName) {
100         final int displayId = mWmState.getDisplayByActivity(componentName);
101         final WindowManagerState.DisplayContent display = mWmState.getDisplay(displayId);
102 
103         final Rect appRect = display.getAppRect();
104         final int shortSide = Math.min(appRect.width(), appRect.height());
105         final int longSide = Math.max(appRect.width(), appRect.height());
106         return (float) longSide / (float) shortSide;
107     }
108 
getMinimalTaskSize(ComponentName componentName)109     int getMinimalTaskSize(ComponentName componentName) {
110         final int displayId = mWmState.getDisplayByActivity(componentName);
111         return mWmState.defaultMinimalTaskSize(displayId);
112     }
113 
getDefaultDisplayAspectRatio()114     static float getDefaultDisplayAspectRatio() {
115         return getAspectRatio(getInstrumentation().getContext().getSystemService(
116                 WindowManager.class).getDefaultDisplay());
117     }
118 
getActivityAspectRatio(Activity activity)119     private static float getActivityAspectRatio(Activity activity) {
120         return getAspectRatio(getDisplay(activity));
121     }
122 
getActivitySize(Activity activity)123     private static Point getActivitySize(Activity activity) {
124         final Point size = new Point();
125         getDisplay(activity).getSize(size);
126         return size;
127     }
128 
getDisplay(Activity activity)129     private static Display getDisplay(Activity activity) {
130         return activity.getWindow().peekDecorView().getDisplay();
131     }
132 
getAspectRatio(Display display)133     private static float getAspectRatio(Display display) {
134         final Point size = new Point();
135         display.getSize(size);
136         final float longSide = Math.max(size.x, size.y);
137         final float shortSide = Math.min(size.x, size.y);
138         return longSide / shortSide;
139     }
140 
launchActivity(final ActivityTestRule activityRule)141     protected Activity launchActivity(final ActivityTestRule activityRule) {
142         final Activity activity = activityRule.launchActivity(null);
143         waitForIdle();
144         return activity;
145     }
146 
finishActivity(ActivityTestRule activityRule)147     private void finishActivity(ActivityTestRule activityRule) {
148         final Activity activity = activityRule.getActivity();
149         if (activity != null) {
150             activity.finish();
151         }
152     }
153 
greaterThanOrEqualToInexact(float expected)154     static Matcher<Float> greaterThanOrEqualToInexact(float expected) {
155         return greaterThanOrEqualTo(expected - FLOAT_EQUALITY_DELTA);
156     }
157 
lessThanOrEqualToInexact(float expected)158     static Matcher<Float> lessThanOrEqualToInexact(float expected) {
159         return lessThanOrEqualTo(expected + FLOAT_EQUALITY_DELTA);
160     }
161 }
162