DisplayContentTests.java revision f4ebe2e2ccfcbce9de7ad0c3b5399971201f66fd 
1/*
2 * Copyright (C) 2016 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
17package com.android.server.wm;
18
19import org.junit.Before;
20import org.junit.Test;
21import org.junit.runner.RunWith;
22
23import android.content.Context;
24import android.content.res.Configuration;
25import android.os.IBinder;
26import android.platform.test.annotations.Presubmit;
27import android.support.test.InstrumentationRegistry;
28import android.support.test.filters.SmallTest;
29import android.support.test.runner.AndroidJUnit4;
30import android.view.Display;
31import android.view.IWindow;
32import android.view.WindowManager;
33
34import java.util.ArrayList;
35
36import static android.app.ActivityManager.StackId.FIRST_DYNAMIC_STACK_ID;
37import static android.app.AppOpsManager.OP_NONE;
38import static android.content.res.Configuration.EMPTY;
39import static android.view.WindowManager.LayoutParams.FIRST_APPLICATION_WINDOW;
40import static android.view.WindowManager.LayoutParams.LAST_APPLICATION_WINDOW;
41import static android.view.WindowManager.LayoutParams.TYPE_APPLICATION_ATTACHED_DIALOG;
42import static android.view.WindowManager.LayoutParams.TYPE_APPLICATION_MEDIA;
43import static android.view.WindowManager.LayoutParams.TYPE_BASE_APPLICATION;
44import static android.view.WindowManager.LayoutParams.TYPE_INPUT_METHOD;
45import static android.view.WindowManager.LayoutParams.TYPE_INPUT_METHOD_DIALOG;
46import static android.view.WindowManager.LayoutParams.TYPE_NAVIGATION_BAR;
47import static android.view.WindowManager.LayoutParams.TYPE_STATUS_BAR;
48import static android.view.WindowManager.LayoutParams.TYPE_WALLPAPER;
49import static org.junit.Assert.assertEquals;
50import static org.mockito.Mockito.mock;
51
52/**
53 * Tests for the {@link DisplayContent} class.
54 *
55 * Build/Install/Run:
56 *  bit FrameworksServicesTests:com.android.server.wm.DisplayContentTests
57 */
58@SmallTest
59@Presubmit
60@RunWith(AndroidJUnit4.class)
61public class DisplayContentTests {
62
63    private static WindowManagerService sWm = null;
64    private final IWindow mIWindow = new TestIWindow();
65    private final Session mMockSession = mock(Session.class);
66    private Display mDisplay;
67    private int mNextStackId = FIRST_DYNAMIC_STACK_ID;
68    private int mNextTaskId = 0;
69
70    @Before
71    public void setUp() throws Exception {
72        final Context context = InstrumentationRegistry.getTargetContext();
73        sWm = TestWindowManagerPolicy.getWindowManagerService(context);
74        mDisplay = context.getDisplay();
75    }
76
77    @Test
78    public void testForAllWindows() throws Exception {
79        final DisplayContent dc = new DisplayContent(mDisplay, sWm, null, null);
80        final WindowState wallpaperWindow = createWindow(null, TYPE_WALLPAPER, dc, "wallpaper");
81        final WindowState imeWindow = createWindow(null, TYPE_INPUT_METHOD, dc, "ime");
82        final WindowState imeDialogWindow = createWindow(null, TYPE_INPUT_METHOD_DIALOG, dc,
83                "ime dialog");
84        final WindowState statusBarWindow = createWindow(null, TYPE_STATUS_BAR, dc, "status bar");
85        final WindowState navBarWindow = createWindow(null, TYPE_NAVIGATION_BAR,
86                statusBarWindow.mToken, "nav bar");
87        final WindowState appWindow = createWindow(null, TYPE_BASE_APPLICATION, dc, "app");
88        final WindowState negChildAppWindow = createWindow(appWindow, TYPE_APPLICATION_MEDIA,
89                appWindow.mToken, "negative app child");
90        final WindowState posChildAppWindow = createWindow(appWindow,
91                TYPE_APPLICATION_ATTACHED_DIALOG, appWindow.mToken, "positive app child");
92        final WindowState exitingAppWindow = createWindow(null, TYPE_BASE_APPLICATION, dc,
93                "exiting app");
94        final AppWindowToken exitingAppToken = exitingAppWindow.mAppToken;
95        exitingAppToken.mIsExiting = true;
96        exitingAppToken.mTask.mStack.mExitingAppTokens.add(exitingAppToken);
97
98        final ArrayList<WindowState> windows = new ArrayList();
99
100        // Test forward traversal.
101        dc.forAllWindows(w -> {windows.add(w);}, false /* traverseTopToBottom */);
102
103        assertEquals(wallpaperWindow, windows.get(0));
104        assertEquals(exitingAppWindow, windows.get(1));
105        assertEquals(negChildAppWindow, windows.get(2));
106        assertEquals(appWindow, windows.get(3));
107        assertEquals(posChildAppWindow, windows.get(4));
108        assertEquals(statusBarWindow, windows.get(5));
109        assertEquals(navBarWindow, windows.get(6));
110        assertEquals(imeWindow, windows.get(7));
111        assertEquals(imeDialogWindow, windows.get(8));
112
113        // Test backward traversal.
114        windows.clear();
115        dc.forAllWindows(w -> {windows.add(w);}, true /* traverseTopToBottom */);
116
117        assertEquals(wallpaperWindow, windows.get(8));
118        assertEquals(exitingAppWindow, windows.get(7));
119        assertEquals(negChildAppWindow, windows.get(6));
120        assertEquals(appWindow, windows.get(5));
121        assertEquals(posChildAppWindow, windows.get(4));
122        assertEquals(statusBarWindow, windows.get(3));
123        assertEquals(navBarWindow, windows.get(2));
124        assertEquals(imeWindow, windows.get(1));
125        assertEquals(imeDialogWindow, windows.get(0));
126    }
127
128    private WindowToken createWindowToken(DisplayContent dc, int type) {
129        if (type < FIRST_APPLICATION_WINDOW || type > LAST_APPLICATION_WINDOW) {
130            return new WindowToken(sWm, mock(IBinder.class), type, false, dc);
131        }
132
133        final int stackId = mNextStackId++;
134        dc.addStackToDisplay(stackId, true);
135        final TaskStack stack = sWm.mStackIdToStack.get(stackId);
136        final Task task = new Task(mNextTaskId++, stack, 0, sWm, null, EMPTY, false);
137        stack.addTask(task, true);
138        final AppWindowToken token = new AppWindowToken(sWm, null, false, dc);
139        task.addAppToken(0, token, 0, false);
140        return token;
141    }
142
143    private WindowState createWindow(WindowState parent, int type, DisplayContent dc, String name) {
144        final WindowToken token = createWindowToken(dc, type);
145        return createWindow(parent, type, token, name);
146    }
147
148    private WindowState createWindow(WindowState parent, int type, WindowToken token, String name) {
149        final WindowManager.LayoutParams attrs = new WindowManager.LayoutParams(type);
150        attrs.setTitle(name);
151
152        final WindowState w = new WindowState(sWm, mMockSession, mIWindow, token, parent, OP_NONE,
153                0, attrs, 0, 0);
154        // TODO: Probably better to make this call in the WindowState ctor to avoid errors with
155        // adding it to the token...
156        token.addWindow(w);
157        return w;
158    }
159}
160