Implement Tooltips widget for QS panel

- Show the illustration and QS tile label text
- Dynamic update popup window width by content
- Support the auto close timer API

Bug: 210353709
Test: make RunSettingsRoboTests ROBOTEST_FILTER=AccessibilityQuickSettingsTooltipWindowTest
Change-Id: I8e0d3ff4ef6a48a54ef1e80724002d2cd28d7ac3

tests/robotests/src/com/android/settings/accessibility/AccessibilityQuickSettingsTooltipWindowTest.java

@@ -0,0 +1,113 @@
+/*
+ * Copyright (C) 2022 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.settings.accessibility;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Mockito.verify;
+
+import android.content.Context;
+import android.view.View;
+import android.widget.PopupWindow;
+
+import androidx.test.core.app.ApplicationProvider;
+
+import com.android.settings.R;
+
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.junit.MockitoJUnit;
+import org.mockito.junit.MockitoRule;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.RuntimeEnvironment;
+import org.robolectric.shadow.api.Shadow;
+import org.robolectric.shadows.ShadowApplication;
+import org.robolectric.shadows.ShadowLooper;
+
+/** Tests for {@link AccessibilityQuickSettingsTooltipWindow}. */
+@RunWith(RobolectricTestRunner.class)
+public class AccessibilityQuickSettingsTooltipWindowTest {
+
+    @Rule
+    public final MockitoRule mMockitoRule = MockitoJUnit.rule();
+
+    @Mock
+    private PopupWindow.OnDismissListener mMockOnDismissListener;
+
+    private static final String TEST_PACKAGE_NAME = "com.test.package";
+    private final Context mContext = ApplicationProvider.getApplicationContext();
+    private AccessibilityQuickSettingsTooltipWindow mToolTipView;
+    private View mView;
+
+    @Before
+    public void setUp() {
+        mToolTipView = new AccessibilityQuickSettingsTooltipWindow(mContext);
+        mView = new View(RuntimeEnvironment.application);
+    }
+
+    @Test
+    public void initToolTipView_atMostAvailableTextWidth() {
+        final String quickSettingsTooltipsContent = mContext.getString(
+                R.string.accessibility_service_quick_settings_tooltips_content, TEST_PACKAGE_NAME);
+        mToolTipView.setup(quickSettingsTooltipsContent);
+
+        final int getMaxWidth = mToolTipView.getAvailableWindowWidth();
+        assertThat(mToolTipView.getWidth()).isAtMost(getMaxWidth);
+    }
+
+    @Test
+    public void showToolTipView_success() {
+        mToolTipView.setup(TEST_PACKAGE_NAME);
+        assertThat(getLatestPopupWindow()).isNull();
+
+        mToolTipView.showAtTopCenter(mView);
+
+        assertThat(getLatestPopupWindow()).isSameInstanceAs(mToolTipView);
+    }
+
+    @Test
+    public void dismiss_toolTipViewShown_shouldInvokeCallbackAndNotShowing() {
+        mToolTipView.setup(TEST_PACKAGE_NAME);
+        mToolTipView.setOnDismissListener(mMockOnDismissListener);
+        mToolTipView.showAtTopCenter(mView);
+
+        mToolTipView.dismiss();
+
+        verify(mMockOnDismissListener).onDismiss();
+        assertThat(getLatestPopupWindow().isShowing()).isFalse();
+    }
+
+    @Test
+    public void waitAutoCloseDelayTime_toolTipViewShown_shouldInvokeCallbackAndNotShowing() {
+        mToolTipView.setup(TEST_PACKAGE_NAME, /* closeDelayTimeMillis= */ 1);
+        mToolTipView.setOnDismissListener(mMockOnDismissListener);
+        mToolTipView.showAtTopCenter(mView);
+
+        ShadowLooper.runUiThreadTasksIncludingDelayedTasks();
+
+        verify(mMockOnDismissListener).onDismiss();
+        assertThat(getLatestPopupWindow().isShowing()).isFalse();
+    }
+
+    private static PopupWindow getLatestPopupWindow() {
+        final ShadowApplication shadowApplication = Shadow.extract(RuntimeEnvironment.application);
+        return shadowApplication.getLatestPopupWindow();
+    }
+}