New feature “Text and reading options” for SetupWizard, Wallpaper, and Settings (13/n).

- Add the ResetPreference for controlling all preferences state in the text and reading options page.
1) Create a new interface ResetStateListener for the other preferences.

- Link-up between the reset, font size, and display size preferences.

Bug: 211503117
Test: make RunSettingsRoboTests ROBOTEST_FILTER=PreviewSizeSeekBarControllerTest
Test: make RunSettingsRoboTests ROBOTEST_FILTER=TextReadingResetControllerTest
Change-Id: Ida773967834e32737b1daac885a2dd71189d32c8

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

@@ -0,0 +1,119 @@
+/*
+ * 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.android.settings.accessibility.TextReadingResetController.ResetStateListener;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Mockito.when;
+
+import android.content.Context;
+import android.view.View;
+
+import androidx.preference.PreferenceScreen;
+import androidx.test.core.app.ApplicationProvider;
+
+import com.android.settings.R;
+import com.android.settings.core.BasePreferenceController;
+import com.android.settingslib.widget.LayoutPreference;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.RobolectricTestRunner;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Tests for {@link TextReadingResetController}.
+ */
+@RunWith(RobolectricTestRunner.class)
+public class TextReadingResetControllerTest {
+    private static final String TEST_KEY = "test";
+    private static final String RESET_KEY = "reset";
+    private final Context mContext = ApplicationProvider.getApplicationContext();
+    private final View mResetView = new View(mContext);
+    private final List<ResetStateListener> mListeners = new ArrayList<>();
+    private TextReadingResetController mResetController;
+    private TestPreferenceController mPreferenceController;
+
+    @Mock
+    private PreferenceScreen mPreferenceScreen;
+
+    @Mock
+    private LayoutPreference mLayoutPreference;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+
+        mPreferenceController = new TestPreferenceController(mContext, TEST_KEY);
+        mListeners.add(mPreferenceController);
+        mResetController = new TextReadingResetController(mContext, RESET_KEY, mListeners);
+    }
+
+    @Test
+    public void setClickListener_success() {
+        setupResetButton();
+
+        mResetController.displayPreference(mPreferenceScreen);
+
+        assertThat(mResetView.hasOnClickListeners()).isTrue();
+    }
+
+    @Test
+    public void triggerResetState_success() {
+        setupResetButton();
+
+        mResetController.displayPreference(mPreferenceScreen);
+        mResetView.callOnClick();
+
+        assertThat(mPreferenceController.isReset()).isTrue();
+    }
+
+    private void setupResetButton() {
+        when(mPreferenceScreen.findPreference(RESET_KEY)).thenReturn(mLayoutPreference);
+        when(mLayoutPreference.findViewById(R.id.reset_button)).thenReturn(mResetView);
+    }
+
+    private static class TestPreferenceController extends BasePreferenceController implements
+            ResetStateListener {
+        private boolean mIsReset = false;
+
+        TestPreferenceController(Context context, String preferenceKey) {
+            super(context, preferenceKey);
+        }
+
+        @Override
+        public void resetState() {
+            mIsReset = true;
+        }
+
+        @Override
+        public int getAvailabilityStatus() {
+            return AVAILABLE;
+        }
+
+        boolean isReset() {
+            return mIsReset;
+        }
+    }
+}