Update "Dark Theme" Settings screen to account for Modes that can toggle it

Bedtime is no longer a special case.

Fixes: 361592187
Test: atest com.android.settings.display.darkmode
Flag: android.app.modes_ui
Change-Id: Iddc5d8142d6bc0bb1f5c4ead876ee201c8818b12

res/values/strings.xml

@@ -2929,6 +2929,8 @@
     <string name="dark_ui_summary_off_auto_mode_custom">Will turn on automatically at <xliff:g name="time" example="6 AM">%1$s</xliff:g></string>
     <!-- Display settings screen, summary of Dark UI when off and will turn on automatically at bedtime. [CHAR LIMIT=NONE] -->
     <string name="dark_ui_summary_off_auto_mode_custom_bedtime">Will turn on automatically at bedtime</string>
+    <!-- Display settings screen, summary of Dark UI when off and controlled by Modes. [CHAR LIMIT=NONE] -->
+    <string name="dark_ui_summary_off_auto_mode_modes">Will turn on when <xliff:g name="modeName" example="Bedtime">%1$s</xliff:g> starts</string>
     <!-- Display settings screen, summary of Dark UI when on and will *never* turn off automatically. [CHAR LIMIT=NONE] -->
     <string name="dark_ui_summary_on_auto_mode_never">Will never turn off automatically</string>
     <!-- Display settings screen, summary of Dark UI when on and will turn off automatically at sunrise. [CHAR LIMIT=NONE] -->
@@ -2937,12 +2939,26 @@
     <string name="dark_ui_summary_on_auto_mode_custom">Will turn off automatically at <xliff:g name="time" example="10 PM">%1$s</xliff:g></string>
     <!-- Display settings screen, summary of Dark UI when on and will turn off automatically after bedtime. [CHAR LIMIT=NONE] -->
     <string name="dark_ui_summary_on_auto_mode_custom_bedtime">Will turn off automatically after bedtime</string>
+    <!-- Display settings screen, summary of Dark UI when on and controlled by Modes. [CHAR LIMIT=NONE] -->
+    <string name="dark_ui_summary_on_auto_mode_modes">Will turn off when <xliff:g name="modeName" example="Bedtime">%1$s</xliff:g> ends</string>
     <!-- Dark theme screen, description of Dark theme feature. [CHAR LIMIT=NONE] -->
     <string name="dark_ui_text">Dark theme uses a black background to help keep battery alive longer on some screens. Dark theme schedules wait to turn on until your screen is off.</string>
     <!-- Dark UI screen footer summary text shown when the when Dark theme turns on/off automatically according to a user bedtime schedule. [CHAR LIMIT=NONE] -->
     <string name="dark_ui_bedtime_footer_summary">Dark theme is currently following your Bedtime mode schedule</string>
     <!-- Dark UI screen footer action text shown when the when Dark theme turns on/off automatically according to a user bedtime schedule. [CHAR LIMIT=NONE] -->
     <string name="dark_ui_bedtime_footer_action">Bedtime mode settings</string>
+    <!-- Dark UI screen footer summary text shown to indicate Modes may turn on/off Dark theme automatically according to their triggers. [CHAR LIMIT=NONE] -->
+    <string name="dark_ui_modes_footer_summary">
+        {count, plural, offset:2
+            =0    {Modes can also activate dark theme}
+            =1    {{mode_1} also activates dark theme}
+            =2    {{mode_1} and {mode_2} also activate dark theme}
+            =3    {{mode_1}, {mode_2}, and {mode_3} also activate dark theme}
+            other {{mode_1}, {mode_2}, and # more also activate dark theme}
+        }
+    </string>
+    <!-- Dark UI screen footer action text linking to Modes settings. [CHAR LIMIT=NONE] -->
+    <string name="dark_ui_modes_footer_action">Modes settings</string>
     <!-- Even Dimmer setting title. Allows device to reduce brightness even further than standard range. [CHAR LIMIT=NONE] -->
     <string name="even_dimmer_display_title">Even dimmer</string>
     <!-- Even Dimmer setting summary. [CHAR LIMIT=NONE] -->

res/xml/dark_mode_settings.xml

@@ -60,6 +60,6 @@
         android:title="@string/dark_ui_bedtime_footer_summary"
         android:selectable="false"
         settings:searchable="false"
-        settings:controller="com.android.settings.display.darkmode.DarkModeCustomBedtimePreferenceController" />
+        settings:controller="com.android.settings.display.darkmode.DarkModeCustomModesPreferenceController" />
 
 </PreferenceScreen>

src/com/android/settings/display/darkmode/AutoDarkTheme.java

@@ -0,0 +1,105 @@
+/*
+ * Copyright (C) 2024 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.display.darkmode;
+
+import static android.app.UiModeManager.MODE_ATTENTION_THEME_OVERLAY_NIGHT;
+import static android.app.UiModeManager.MODE_NIGHT_AUTO;
+import static android.app.UiModeManager.MODE_NIGHT_CUSTOM_TYPE_BEDTIME;
+import static android.app.UiModeManager.MODE_NIGHT_CUSTOM_TYPE_SCHEDULE;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
+import android.app.Flags;
+import android.app.UiModeManager;
+import android.content.Context;
+
+import com.android.settings.R;
+import com.android.settingslib.notification.modes.ZenMode;
+import com.android.settingslib.notification.modes.ZenModesBackend;
+
+import java.time.LocalTime;
+import java.util.List;
+
+class AutoDarkTheme {
+
+    static String getStatus(Context context, boolean active) {
+        UiModeManager uiModeManager = checkNotNull(context.getSystemService(UiModeManager.class));
+        final int mode = uiModeManager.getNightMode();
+
+        if (mode == MODE_NIGHT_AUTO) {
+            return context.getString(active
+                    ? R.string.dark_ui_summary_on_auto_mode_auto
+                    : R.string.dark_ui_summary_off_auto_mode_auto);
+        }
+
+        if (Flags.modesUi()) {
+            if (active && uiModeManager.getAttentionModeThemeOverlay()
+                    == MODE_ATTENTION_THEME_OVERLAY_NIGHT) {
+                List<String> modes = getActiveModesThatChangeDarkTheme(context);
+                if (!modes.isEmpty()) {
+                    return context.getString(R.string.dark_ui_summary_on_auto_mode_modes,
+                            modes.get(0));
+                }
+            } else if (!active) {
+                List<String> modes = getModesThatChangeDarkTheme(context);
+                if (!modes.isEmpty()) {
+                    return context.getString(R.string.dark_ui_summary_off_auto_mode_modes,
+                            modes.get(0));
+                }
+            }
+        }
+
+        if (mode == UiModeManager.MODE_NIGHT_CUSTOM) {
+            int modeCustomType = uiModeManager.getNightModeCustomType();
+            if (!Flags.modesUi() && modeCustomType == MODE_NIGHT_CUSTOM_TYPE_BEDTIME) {
+                return context.getString(active
+                        ? R.string.dark_ui_summary_on_auto_mode_custom_bedtime
+                        : R.string.dark_ui_summary_off_auto_mode_custom_bedtime);
+            }
+            if (modeCustomType == MODE_NIGHT_CUSTOM_TYPE_SCHEDULE) {
+                final LocalTime time = active
+                        ? uiModeManager.getCustomNightModeEnd()
+                        : uiModeManager.getCustomNightModeStart();
+                final String timeStr = new TimeFormatter(context).of(time);
+                return context.getString(active
+                        ? R.string.dark_ui_summary_on_auto_mode_custom
+                        : R.string.dark_ui_summary_off_auto_mode_custom, timeStr);
+            }
+        }
+
+        return context.getString(active
+                ? R.string.dark_ui_summary_on_auto_mode_never
+                : R.string.dark_ui_summary_off_auto_mode_never);
+    }
+
+    static List<String> getModesThatChangeDarkTheme(Context context) {
+        return ZenModesBackend.getInstance(context)
+                .getModes().stream()
+                .filter(m -> m.getDeviceEffects().shouldUseNightMode())
+                .map(ZenMode::getName)
+                .toList();
+    }
+
+    static List<String> getActiveModesThatChangeDarkTheme(Context context) {
+        return ZenModesBackend.getInstance(context)
+                .getModes().stream()
+                .filter(ZenMode::isActive)
+                .filter(m -> m.getDeviceEffects().shouldUseNightMode())
+                .map(ZenMode::getName)
+                .toList();
+    }
+}

src/com/android/settings/display/darkmode/DarkModeActivationPreferenceController.java

@@ -24,14 +24,11 @@ import android.widget.CompoundButton.OnCheckedChangeListener;
 import androidx.preference.Preference;
 import androidx.preference.PreferenceScreen;
 
-import com.android.settings.R;
 import com.android.settings.core.BasePreferenceController;
 import com.android.settings.overlay.FeatureFactory;
 import com.android.settingslib.core.instrumentation.MetricsFeatureProvider;
 import com.android.settingslib.widget.MainSwitchPreference;
 
-import java.time.LocalTime;
-
 /**
  * Controller for activate/deactivate night mode button
  */
@@ -40,22 +37,14 @@ public class DarkModeActivationPreferenceController extends BasePreferenceContro
 
     private final UiModeManager mUiModeManager;
     private final MetricsFeatureProvider mMetricsFeatureProvider;
-    private TimeFormatter mFormat;
     private MainSwitchPreference mPreference;
 
     public DarkModeActivationPreferenceController(Context context, String preferenceKey) {
         super(context, preferenceKey);
         mUiModeManager = context.getSystemService(UiModeManager.class);
-        mFormat = new TimeFormatter(context);
         mMetricsFeatureProvider = FeatureFactory.getFeatureFactory().getMetricsFeatureProvider();
     }
 
-    public DarkModeActivationPreferenceController(Context context, String preferenceKey,
-            TimeFormatter f) {
-        this(context, preferenceKey);
-        mFormat = f;
-    }
-
     @Override
     public final void updateState(Preference preference) {
         final boolean active = (mContext.getResources().getConfiguration().uiMode
@@ -67,32 +56,7 @@ public class DarkModeActivationPreferenceController extends BasePreferenceContro
     public CharSequence getSummary() {
         final boolean isActivated = (mContext.getResources().getConfiguration().uiMode
                 & Configuration.UI_MODE_NIGHT_YES) != 0;
-        final int mode = mUiModeManager.getNightMode();
+        return AutoDarkTheme.getStatus(mContext, isActivated);
-        if (mode == UiModeManager.MODE_NIGHT_AUTO) {
-            return mContext.getString(isActivated
-                    ? R.string.dark_ui_summary_on_auto_mode_auto
-                    : R.string.dark_ui_summary_off_auto_mode_auto);
-        } else if (mode == UiModeManager.MODE_NIGHT_CUSTOM) {
-            if (mUiModeManager.getNightModeCustomType()
-                    == UiModeManager.MODE_NIGHT_CUSTOM_TYPE_BEDTIME) {
-                return mContext.getString(isActivated
-                        ? R.string.dark_ui_summary_on_auto_mode_custom_bedtime
-                        : R.string.dark_ui_summary_off_auto_mode_custom_bedtime);
-            }
-
-            final LocalTime time = isActivated
-                    ? mUiModeManager.getCustomNightModeEnd()
-                    : mUiModeManager.getCustomNightModeStart();
-            final String timeStr = mFormat.of(time);
-
-            return mContext.getString(isActivated
-                    ? R.string.dark_ui_summary_on_auto_mode_custom
-                    : R.string.dark_ui_summary_off_auto_mode_custom, timeStr);
-        } else {
-            return mContext.getString(isActivated
-                    ? R.string.dark_ui_summary_on_auto_mode_never
-                    : R.string.dark_ui_summary_off_auto_mode_never);
-        }
     }
 
     @Override

src/com/android/settings/display/darkmode/DarkModeCustomBedtimePreferenceController.java

@@ -1,74 +0,0 @@
-/*
- * 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.display.darkmode;
-
-import static android.app.UiModeManager.MODE_NIGHT_CUSTOM_TYPE_BEDTIME;
-
-import android.app.UiModeManager;
-import android.content.Context;
-import android.content.Intent;
-
-import androidx.preference.Preference;
-import androidx.preference.PreferenceScreen;
-
-import com.android.settings.R;
-import com.android.settings.core.BasePreferenceController;
-import com.android.settingslib.widget.FooterPreference;
-
-/** Controller for the night mode bedtime custom mode footer. */
-public class DarkModeCustomBedtimePreferenceController extends BasePreferenceController {
-    private final UiModeManager mUiModeManager;
-    private FooterPreference mFooterPreference;
-    private BedtimeSettings mBedtimeSettings;
-
-    public DarkModeCustomBedtimePreferenceController(Context context, String key) {
-        super(context, key);
-        mUiModeManager = context.getSystemService(UiModeManager.class);
-        mBedtimeSettings = new BedtimeSettings(context);
-    }
-
-    @Override
-    public int getAvailabilityStatus() {
-        return mBedtimeSettings.getBedtimeSettingsIntent() == null
-                ? UNSUPPORTED_ON_DEVICE
-                : AVAILABLE_UNSEARCHABLE;
-    }
-
-    @Override
-    public void displayPreference(PreferenceScreen screen) {
-        super.displayPreference(screen);
-        mFooterPreference = screen.findPreference(getPreferenceKey());
-        mFooterPreference.setLearnMoreAction(
-                v -> {
-                    Intent bedtimeSettingsIntent = mBedtimeSettings.getBedtimeSettingsIntent();
-                    if (bedtimeSettingsIntent != null) {
-                        v.getContext().startActivity(bedtimeSettingsIntent);
-                    }
-                });
-        mFooterPreference.setLearnMoreText(
-                mContext.getString(R.string.dark_ui_bedtime_footer_action));
-    }
-
-    @Override
-    public void updateState(Preference preference) {
-        if (mUiModeManager.getNightModeCustomType() != MODE_NIGHT_CUSTOM_TYPE_BEDTIME) {
-            preference.setVisible(false);
-            return;
-        }
-        preference.setVisible(true);
-    }
-}

src/com/android/settings/display/darkmode/DarkModeCustomModesPreferenceController.java

@@ -0,0 +1,112 @@
+/*
+ * 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.display.darkmode;
+
+import static android.app.UiModeManager.MODE_NIGHT_CUSTOM_TYPE_BEDTIME;
+import static android.app.settings.SettingsEnums.DARK_UI_SETTINGS;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
+import android.app.Flags;
+import android.app.UiModeManager;
+import android.content.Context;
+import android.content.Intent;
+import android.icu.text.MessageFormat;
+
+import androidx.annotation.NonNull;
+import androidx.preference.Preference;
+import androidx.preference.PreferenceScreen;
+
+import com.android.settings.R;
+import com.android.settings.core.BasePreferenceController;
+import com.android.settings.core.SubSettingLauncher;
+import com.android.settings.notification.modes.ZenModesListFragment;
+import com.android.settingslib.widget.FooterPreference;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Locale;
+import java.util.Map;
+
+/** Controller for the dark theme Modes / Bedtime custom footer. */
+public class DarkModeCustomModesPreferenceController extends BasePreferenceController {
+    private final UiModeManager mUiModeManager;
+    private final BedtimeSettings mBedtimeSettings;
+
+    public DarkModeCustomModesPreferenceController(@NonNull Context context, @NonNull String key) {
+        super(context, key);
+        mUiModeManager = context.getSystemService(UiModeManager.class);
+        mBedtimeSettings = new BedtimeSettings(context);
+    }
+
+    @Override
+    public int getAvailabilityStatus() {
+        return (Flags.modesUi() || mBedtimeSettings.getBedtimeSettingsIntent() != null)
+                ? AVAILABLE_UNSEARCHABLE
+                : UNSUPPORTED_ON_DEVICE;
+    }
+
+    @Override
+    public void displayPreference(@NonNull PreferenceScreen screen) {
+        super.displayPreference(screen);
+        FooterPreference footerPreference = checkNotNull(screen.findPreference(getPreferenceKey()));
+        if (Flags.modesUi()) {
+            List<String> modesUsingDarkTheme = AutoDarkTheme.getModesThatChangeDarkTheme(
+                    screen.getContext());
+
+            MessageFormat titleFormat = new MessageFormat(
+                    mContext.getString(R.string.dark_ui_modes_footer_summary),
+                    Locale.getDefault());
+            Map<String, Object> args = new HashMap<>();
+            args.put("count", modesUsingDarkTheme.size());
+            for (int i = 0; i < modesUsingDarkTheme.size() && i < 3; i++) {
+                args.put("mode_" + (i + 1), modesUsingDarkTheme.get(i));
+            }
+            footerPreference.setTitle(titleFormat.format(args));
+
+            footerPreference.setLearnMoreAction(
+                    v -> new SubSettingLauncher(v.getContext())
+                            .setDestination(ZenModesListFragment.class.getName())
+                            .setSourceMetricsCategory(DARK_UI_SETTINGS)
+                            .launch());
+            footerPreference.setLearnMoreText(
+                    mContext.getString(R.string.dark_ui_modes_footer_action));
+        } else {
+            footerPreference.setTitle(R.string.dark_ui_bedtime_footer_summary);
+            footerPreference.setLearnMoreAction(
+                    v -> {
+                        Intent bedtimeSettingsIntent = mBedtimeSettings.getBedtimeSettingsIntent();
+                        if (bedtimeSettingsIntent != null) {
+                            v.getContext().startActivity(bedtimeSettingsIntent);
+                        }
+                    });
+            footerPreference.setLearnMoreText(
+                    mContext.getString(R.string.dark_ui_bedtime_footer_action));
+        }
+    }
+
+    @Override
+    public void updateState(@NonNull Preference preference) {
+        if (!Flags.modesUi()) {
+            if (mUiModeManager.getNightModeCustomType() != MODE_NIGHT_CUSTOM_TYPE_BEDTIME) {
+                preference.setVisible(false);
+                return;
+            }
+            preference.setVisible(true);
+        }
+    }
+}

src/com/android/settings/display/darkmode/DarkModePreference.java

@@ -23,8 +23,6 @@ import android.util.AttributeSet;
 import com.android.settings.R;
 import com.android.settingslib.PrimarySwitchPreference;
 
-import java.time.LocalTime;
-
 /**
  * component for the display settings dark ui summary
  */
@@ -71,36 +69,8 @@ public class DarkModePreference extends PrimarySwitchPreference {
                     ? R.string.dark_ui_mode_disabled_summary_dark_theme_on
                     : R.string.dark_ui_mode_disabled_summary_dark_theme_off;
             setSummary(getContext().getString(stringId));
-            return;
-        }
-        final int mode = mUiModeManager.getNightMode();
-        String summary;
-
-        if (mode == UiModeManager.MODE_NIGHT_AUTO) {
-            summary = getContext().getString(active
-                    ? R.string.dark_ui_summary_on_auto_mode_auto
-                    : R.string.dark_ui_summary_off_auto_mode_auto);
-        } else if (mode == UiModeManager.MODE_NIGHT_CUSTOM) {
-            if (mUiModeManager.getNightModeCustomType()
-                    == UiModeManager.MODE_NIGHT_CUSTOM_TYPE_BEDTIME) {
-                summary = getContext().getString(active
-                        ? R.string.dark_ui_summary_on_auto_mode_custom_bedtime
-                        : R.string.dark_ui_summary_off_auto_mode_custom_bedtime);
         } else {
-                final LocalTime time = active
+            setSummary(AutoDarkTheme.getStatus(getContext(), active));
-                        ? mUiModeManager.getCustomNightModeEnd()
-                        : mUiModeManager.getCustomNightModeStart();
-                final String timeStr = mFormat.of(time);
-                summary = getContext().getString(active
-                        ? R.string.dark_ui_summary_on_auto_mode_custom
-                        : R.string.dark_ui_summary_off_auto_mode_custom, timeStr);
         }
-        } else {
-            summary = getContext().getString(active
-                    ? R.string.dark_ui_summary_on_auto_mode_never
-                    : R.string.dark_ui_summary_off_auto_mode_never);
-        }
-
-        setSummary(summary);
     }
 }

tests/robotests/src/com/android/settings/display/darkmode/AutoDarkThemeTest.java

@@ -0,0 +1,207 @@
+/*
+ * Copyright (C) 2024 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.display.darkmode;
+
+import static android.app.UiModeManager.MODE_ATTENTION_THEME_OVERLAY_NIGHT;
+import static android.app.UiModeManager.MODE_NIGHT_AUTO;
+import static android.app.UiModeManager.MODE_NIGHT_CUSTOM;
+import static android.app.UiModeManager.MODE_NIGHT_CUSTOM_TYPE_BEDTIME;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Mockito.when;
+
+import android.app.Flags;
+import android.app.UiModeManager;
+import android.content.Context;
+import android.platform.test.annotations.DisableFlags;
+import android.platform.test.annotations.EnableFlags;
+import android.platform.test.flag.junit.SetFlagsRule;
+import android.service.notification.ZenDeviceEffects;
+
+import androidx.test.core.app.ApplicationProvider;
+
+import com.android.settingslib.notification.modes.TestModeBuilder;
+import com.android.settingslib.notification.modes.ZenMode;
+import com.android.settingslib.notification.modes.ZenModesBackend;
+
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.shadows.ShadowApplication;
+
+import java.time.LocalTime;
+import java.util.List;
+
+@RunWith(RobolectricTestRunner.class)
+public class AutoDarkThemeTest {
+    @Rule public final SetFlagsRule mSetFlagsRule = new SetFlagsRule();
+
+    private static final ZenDeviceEffects DEVICE_EFFECTS_WITH_DARK_THEME =
+            new ZenDeviceEffects.Builder().setShouldUseNightMode(true).build();
+
+    private static final ZenMode MODE_WITH_DARK_THEME = new TestModeBuilder()
+            .setName("Sechseläuten")
+            .setDeviceEffects(DEVICE_EFFECTS_WITH_DARK_THEME)
+            .build();
+
+    private Context mContext;
+    @Mock private UiModeManager mUiModeManager;
+    @Mock private ZenModesBackend mZenModesBackend;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        mContext = ApplicationProvider.getApplicationContext();
+
+        ShadowApplication shadowApp = ShadowApplication.getInstance();
+        shadowApp.setSystemService(Context.UI_MODE_SERVICE, mUiModeManager);
+
+        ZenModesBackend.setInstance(mZenModesBackend);
+        when(mZenModesBackend.getModes()).thenReturn(List.of());
+    }
+
+    @Test
+    public void getStatus_inactiveButAuto() {
+        when(mUiModeManager.getNightMode()).thenReturn(MODE_NIGHT_AUTO);
+        assertThat(getStatus(false)).isEqualTo("Will turn on automatically at sunset");
+    }
+
+    @Test
+    public void getStatus_activeDueToAuto() {
+        when(mUiModeManager.getNightMode()).thenReturn(MODE_NIGHT_AUTO);
+        assertThat(getStatus(true)).isEqualTo("Will turn off automatically at sunrise");
+    }
+
+    @Test
+    @EnableFlags(Flags.FLAG_MODES_UI)
+    public void getStatus_inactiveButUsedInModes() {
+        when(mUiModeManager.getNightMode()).thenReturn(MODE_NIGHT_CUSTOM);
+        when(mZenModesBackend.getModes()).thenReturn(List.of(MODE_WITH_DARK_THEME));
+
+        assertThat(getStatus(false)).isEqualTo("Will turn on when Sechseläuten starts");
+    }
+
+    @Test
+    @EnableFlags(Flags.FLAG_MODES_UI)
+    public void getStatus_activeDueToModes() {
+        when(mUiModeManager.getNightMode()).thenReturn(MODE_NIGHT_CUSTOM);
+        when(mUiModeManager.getAttentionModeThemeOverlay()).thenReturn(
+                MODE_ATTENTION_THEME_OVERLAY_NIGHT);
+        when(mZenModesBackend.getModes()).thenReturn(
+                List.of(new TestModeBuilder(MODE_WITH_DARK_THEME).setActive(true).build()));
+
+        assertThat(getStatus(true)).isEqualTo("Will turn off when Sechseläuten ends");
+    }
+
+    @Test
+    @DisableFlags(Flags.FLAG_MODES_UI)
+    public void getStatus_inactiveButUsingBedtime() {
+        when(mUiModeManager.getNightMode()).thenReturn(MODE_NIGHT_CUSTOM);
+        when(mUiModeManager.getNightModeCustomType()).thenReturn(MODE_NIGHT_CUSTOM_TYPE_BEDTIME);
+
+        assertThat(getStatus(false)).isEqualTo("Will turn on automatically at bedtime");
+    }
+
+    @Test
+    @DisableFlags(Flags.FLAG_MODES_UI)
+    public void getStatus_activeDueToBedtime() {
+        when(mUiModeManager.getNightMode()).thenReturn(MODE_NIGHT_CUSTOM);
+        when(mUiModeManager.getNightModeCustomType()).thenReturn(MODE_NIGHT_CUSTOM_TYPE_BEDTIME);
+
+        assertThat(getStatus(true)).isEqualTo("Will turn off automatically after bedtime");
+    }
+
+    @Test
+    public void getStatus_inactiveButHasSchedule() {
+        when(mUiModeManager.getNightMode()).thenReturn(MODE_NIGHT_CUSTOM);
+        when(mUiModeManager.getCustomNightModeStart()).thenReturn(LocalTime.of(22, 0, 0, 0));
+        when(mUiModeManager.getCustomNightModeEnd()).thenReturn(LocalTime.of(8, 0, 0, 0));
+
+        assertThat(getStatus(false)).isEqualTo("Will turn on automatically at 10:00 PM");
+    }
+
+    @Test
+    public void getStatus_activeDueToSchedule() {
+        when(mUiModeManager.getNightMode()).thenReturn(MODE_NIGHT_CUSTOM);
+        when(mUiModeManager.getCustomNightModeStart()).thenReturn(LocalTime.of(22, 0, 0, 0));
+        when(mUiModeManager.getCustomNightModeEnd()).thenReturn(LocalTime.of(8, 0, 0, 0));
+
+        assertThat(getStatus(true)).isEqualTo("Will turn off automatically at 8:00 AM");
+    }
+
+    private String getStatus(boolean active) {
+        return AutoDarkTheme.getStatus(mContext, active);
+    }
+
+    @Test
+    @EnableFlags(Flags.FLAG_MODES_UI)
+    public void getModesThatChangeDarkTheme_returnsModeNames() {
+        ZenMode modeThatChanges1 = new TestModeBuilder()
+                .setName("Inactive")
+                .setDeviceEffects(DEVICE_EFFECTS_WITH_DARK_THEME)
+                .setActive(false)
+                .build();
+        ZenMode modeThatDoesNotChange = new TestModeBuilder()
+                .setName("Unrelated")
+                .build();
+        ZenMode modeThatChanges2 = new TestModeBuilder()
+                .setName("Active")
+                .setDeviceEffects(DEVICE_EFFECTS_WITH_DARK_THEME)
+                .setActive(true)
+                .build();
+        when(mZenModesBackend.getModes()).thenReturn(
+                List.of(modeThatChanges1, modeThatDoesNotChange, modeThatChanges2));
+
+        assertThat(AutoDarkTheme.getModesThatChangeDarkTheme(mContext))
+                .containsExactly("Inactive", "Active")
+                .inOrder();
+    }
+
+    @Test
+    @EnableFlags(Flags.FLAG_MODES_UI)
+    public void getActiveModesThatChangeDarkTheme_returnsModeNames() {
+        ZenMode inactiveModeThatUsesDarkTheme = new TestModeBuilder()
+                .setName("Inactive")
+                .setDeviceEffects(DEVICE_EFFECTS_WITH_DARK_THEME)
+                .setActive(false)
+                .build();
+        ZenMode otherInactiveMode = new TestModeBuilder()
+                .setName("Unrelated, inactive")
+                .setActive(false)
+                .build();
+        ZenMode otherActiveMode = new TestModeBuilder()
+                .setName("Unrelated, active")
+                .setActive(true)
+                .build();
+        ZenMode activeModeThatUsesDarkTheme = new TestModeBuilder()
+                .setName("Active")
+                .setDeviceEffects(DEVICE_EFFECTS_WITH_DARK_THEME)
+                .setActive(true)
+                .build();
+        when(mZenModesBackend.getModes()).thenReturn(
+                List.of(inactiveModeThatUsesDarkTheme, otherInactiveMode, otherActiveMode,
+                        activeModeThatUsesDarkTheme));
+
+        assertThat(AutoDarkTheme.getActiveModesThatChangeDarkTheme(mContext))
+                .containsExactly("Active");
+    }
+}

tests/robotests/src/com/android/settings/display/darkmode/DarkModeActivationPreferenceControllerTest.java

@@ -22,23 +22,29 @@ import static com.google.common.truth.Truth.assertThat;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.ArgumentMatchers.anyBoolean;
 import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.spy;
 import static org.mockito.Mockito.when;
 
+import android.app.Flags;
 import android.app.UiModeManager;
 import android.content.Context;
 import android.content.res.Configuration;
 import android.content.res.Resources;
 import android.os.PowerManager;
+import android.platform.test.annotations.DisableFlags;
+import android.platform.test.flag.junit.SetFlagsRule;
 
 import androidx.preference.PreferenceScreen;
 
 import com.android.settings.R;
 import com.android.settings.testutils.FakeFeatureFactory;
+import com.android.settingslib.notification.modes.ZenModesBackend;
 import com.android.settingslib.widget.MainSwitchPreference;
 
 import org.junit.Before;
+import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.mockito.Mock;
@@ -47,6 +53,8 @@ import org.robolectric.RobolectricTestRunner;
 import org.robolectric.RuntimeEnvironment;
 import org.robolectric.annotation.Config;
 
+import java.time.LocalTime;
+import java.util.List;
 import java.util.Locale;
 
 @RunWith(RobolectricTestRunner.class)
@@ -57,6 +65,9 @@ public class DarkModeActivationPreferenceControllerTest {
     private DarkModeActivationPreferenceController mController;
     private String mPreferenceKey = "key";
 
+    @Rule
+    public final SetFlagsRule mSetFlagsRule = new SetFlagsRule();
+
     private MainSwitchPreference mPreference;
     @Mock
     private PreferenceScreen mScreen;
@@ -67,7 +78,7 @@ public class DarkModeActivationPreferenceControllerTest {
     @Mock
     private PowerManager mPM;
     @Mock
-    private TimeFormatter mFormat;
+    private ZenModesBackend mZenModesBackend;
 
     private Context mContext;
     private Configuration mConfigNightYes = new Configuration();
@@ -87,7 +98,6 @@ public class DarkModeActivationPreferenceControllerTest {
         when(mContext.getSystemService(PowerManager.class)).thenReturn(mPM);
         when(mScreen.findPreference(anyString())).thenReturn(mPreference);
         when(mService.setNightModeActivated(anyBoolean())).thenReturn(true);
-        when(mFormat.of(any())).thenReturn("10:00 AM");
         when(mContext.getString(
                 R.string.dark_ui_activation_off_auto)).thenReturn("off_auto");
         when(mContext.getString(
@@ -104,20 +114,23 @@ public class DarkModeActivationPreferenceControllerTest {
                 R.string.dark_ui_summary_off_auto_mode_never)).thenReturn("summary_off_manual");
         when(mContext.getString(
                 R.string.dark_ui_summary_on_auto_mode_never)).thenReturn("summary_on_manual");
-        when(mContext.getString(R.string.dark_ui_summary_on_auto_mode_custom, "10:00 AM"))
+        when(mContext.getString(eq(R.string.dark_ui_summary_on_auto_mode_custom), any()))
                 .thenReturn("summary_on_custom");
-        when(mContext.getString(R.string.dark_ui_summary_off_auto_mode_custom, "10:00 AM"))
+        when(mContext.getString(eq(R.string.dark_ui_summary_off_auto_mode_custom), any()))
                 .thenReturn("summary_off_custom");
         when(mContext.getString(R.string.dark_ui_summary_on_auto_mode_custom_bedtime))
                 .thenReturn("summary_on_custom_bedtime");
         when(mContext.getString(R.string.dark_ui_summary_off_auto_mode_custom_bedtime))
                 .thenReturn("summary_off_custom_bedtime");
-        mController = new DarkModeActivationPreferenceController(mContext, mPreferenceKey, mFormat);
+        mController = new DarkModeActivationPreferenceController(mContext, mPreferenceKey);
         mController.displayPreference(mScreen);
         mConfigNightNo.uiMode = Configuration.UI_MODE_NIGHT_NO;
         mConfigNightYes.uiMode = Configuration.UI_MODE_NIGHT_YES;
         mConfigNightNo.locale = mLocal;
         mConfigNightYes.locale = mLocal;
+
+        ZenModesBackend.setInstance(mZenModesBackend);
+        when(mZenModesBackend.getModes()).thenReturn(List.of());
     }
 
     @Test
@@ -145,6 +158,8 @@ public class DarkModeActivationPreferenceControllerTest {
     @Test
     public void nightMode_toggleButton_onCustom() {
         when(mService.getNightMode()).thenReturn(UiModeManager.MODE_NIGHT_CUSTOM);
+        when(mService.getCustomNightModeStart()).thenReturn(LocalTime.of(10, 0, 0, 0));
+        when(mService.getCustomNightModeEnd()).thenReturn(LocalTime.of(12, 0, 0, 0));
         when(mRes.getConfiguration()).thenReturn(mConfigNightYes);
 
         mController.updateState(mPreference);
@@ -156,6 +171,8 @@ public class DarkModeActivationPreferenceControllerTest {
     @Test
     public void nightMode_toggleButton_offCustom() {
         when(mService.getNightMode()).thenReturn(UiModeManager.MODE_NIGHT_CUSTOM);
+        when(mService.getCustomNightModeStart()).thenReturn(LocalTime.of(10, 0, 0, 0));
+        when(mService.getCustomNightModeEnd()).thenReturn(LocalTime.of(12, 0, 0, 0));
         when(mRes.getConfiguration()).thenReturn(mConfigNightNo);
 
         mController.updateState(mPreference);
@@ -165,6 +182,7 @@ public class DarkModeActivationPreferenceControllerTest {
     }
 
     @Test
+    @DisableFlags(Flags.FLAG_MODES_UI)
     public void nightMode_toggleButton_onCustomBedtime() {
         when(mService.getNightMode()).thenReturn(UiModeManager.MODE_NIGHT_CUSTOM);
         when(mService.getNightModeCustomType())
@@ -178,6 +196,7 @@ public class DarkModeActivationPreferenceControllerTest {
     }
 
     @Test
+    @DisableFlags(Flags.FLAG_MODES_UI)
     public void nightMode_toggleButton_offCustomBedtime() {
         when(mService.getNightMode()).thenReturn(UiModeManager.MODE_NIGHT_CUSTOM);
         when(mService.getNightModeCustomType())

tests/robotests/src/com/android/settings/display/darkmode/DarkModeCustomModesPreferenceControllerTest.java

@@ -27,42 +27,62 @@ import static com.android.settings.core.BasePreferenceController.UNSUPPORTED_ON_
 
 import static com.google.common.truth.Truth.assertThat;
 
+import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.ArgumentMatchers.anyString;
 import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.spy;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
+import android.app.Flags;
 import android.app.UiModeManager;
 import android.content.Context;
 import android.content.res.Resources;
+import android.platform.test.annotations.DisableFlags;
+import android.platform.test.annotations.EnableFlags;
+import android.platform.test.flag.junit.SetFlagsRule;
+import android.service.notification.ZenDeviceEffects;
 
 import androidx.preference.PreferenceScreen;
 import androidx.test.core.app.ApplicationProvider;
 
 import com.android.settings.testutils.BedtimeSettingsUtils;
 import com.android.settings.testutils.FakeFeatureFactory;
+import com.android.settingslib.notification.modes.TestModeBuilder;
+import com.android.settingslib.notification.modes.ZenMode;
+import com.android.settingslib.notification.modes.ZenModesBackend;
 import com.android.settingslib.widget.FooterPreference;
 
 import org.junit.Before;
+import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
 import org.robolectric.RobolectricTestRunner;
 
+import java.util.List;
+
 @RunWith(RobolectricTestRunner.class)
-public class DarkModeCustomBedtimePreferenceControllerTest {
+public class DarkModeCustomModesPreferenceControllerTest {
+
+    private static final ZenMode MODE_WITH_DARK_THEME = new TestModeBuilder()
+            .setDeviceEffects(new ZenDeviceEffects.Builder().setShouldUseNightMode(true).build())
+            .build();
+
+    @Rule
+    public final SetFlagsRule mSetFlagsRule = new SetFlagsRule();
+
     @Mock
     private UiModeManager mService;
     @Mock
     private PreferenceScreen mScreen;
     @Mock
-    private Resources mResources;
-    @Mock
     private FooterPreference mFooterPreference;
+    @Mock
+    private ZenModesBackend mZenModesBackend;
 
-    private DarkModeCustomBedtimePreferenceController mController;
+    private DarkModeCustomModesPreferenceController mController;
     private Context mContext;
     private BedtimeSettingsUtils mBedtimeSettingsUtils;
 
@@ -75,17 +95,78 @@ public class DarkModeCustomBedtimePreferenceControllerTest {
         mBedtimeSettingsUtils = new BedtimeSettingsUtils(mContext);
 
         when(mContext.getSystemService(UiModeManager.class)).thenReturn(mService);
-
+        Resources res = spy(mContext.getResources());
-        when(mContext.getResources()).thenReturn(mResources);
+        when(res.getString(com.android.internal.R.string.config_systemWellbeing))
-        when(mResources.getString(com.android.internal.R.string.config_systemWellbeing))
                 .thenReturn("wellbeing");
+        when(mContext.getResources()).thenReturn(res);
 
         when(mScreen.findPreference(anyString())).thenReturn(mFooterPreference);
 
-        mController = new DarkModeCustomBedtimePreferenceController(mContext, "key");
+        mController = new DarkModeCustomModesPreferenceController(mContext, "key");
+
+        ZenModesBackend.setInstance(mZenModesBackend);
+        when(mZenModesBackend.getModes()).thenReturn(List.of());
     }
 
     @Test
+    @EnableFlags(Flags.FLAG_MODES_UI)
+    public void displayPreference_withOneModeTogglingDarkTheme() {
+        when(mZenModesBackend.getModes()).thenReturn(List.of(
+                new TestModeBuilder(MODE_WITH_DARK_THEME).setName("A").build()));
+
+        mController.displayPreference(mScreen);
+
+        verify(mFooterPreference).setTitle("A also activates dark theme");
+        verify(mFooterPreference).setLearnMoreAction(any());
+        verify(mFooterPreference).setLearnMoreText("Modes settings");
+    }
+
+    @Test
+    @EnableFlags(Flags.FLAG_MODES_UI)
+    public void displayPreference_withTwoModesTogglingDarkTheme() {
+        when(mZenModesBackend.getModes()).thenReturn(List.of(
+                new TestModeBuilder(MODE_WITH_DARK_THEME).setName("A").build(),
+                new TestModeBuilder(MODE_WITH_DARK_THEME).setName("B").build()));
+
+        mController.displayPreference(mScreen);
+
+        verify(mFooterPreference).setTitle("A and B also activate dark theme");
+        verify(mFooterPreference).setLearnMoreAction(any());
+        verify(mFooterPreference).setLearnMoreText("Modes settings");
+    }
+
+    @Test
+    @EnableFlags(Flags.FLAG_MODES_UI)
+    public void displayPreference_withManyModesTogglingDarkTheme() {
+        when(mZenModesBackend.getModes()).thenReturn(List.of(
+                new TestModeBuilder(MODE_WITH_DARK_THEME).setName("A").build(),
+                new TestModeBuilder(MODE_WITH_DARK_THEME).setName("B").build(),
+                new TestModeBuilder(MODE_WITH_DARK_THEME).setName("C").build(),
+                new TestModeBuilder(MODE_WITH_DARK_THEME).setName("D").build(),
+                new TestModeBuilder(MODE_WITH_DARK_THEME).setName("E").build()
+        ));
+
+        mController.displayPreference(mScreen);
+
+        verify(mFooterPreference).setTitle("A, B, and 3 more also activate dark theme");
+        verify(mFooterPreference).setLearnMoreAction(any());
+        verify(mFooterPreference).setLearnMoreText("Modes settings");
+    }
+
+    @Test
+    @EnableFlags(Flags.FLAG_MODES_UI)
+    public void displayPreference_withZeroModesTogglingDarkTheme() {
+        when(mZenModesBackend.getModes()).thenReturn(List.of());
+
+        mController.displayPreference(mScreen);
+
+        verify(mFooterPreference).setTitle("Modes can also activate dark theme");
+        verify(mFooterPreference).setLearnMoreAction(any());
+        verify(mFooterPreference).setLearnMoreText("Modes settings");
+    }
+
+    @Test
+    @DisableFlags(Flags.FLAG_MODES_UI)
     public void getAvailabilityStatus_bedtimeSettingsExist_shouldBeAvailableUnsearchable() {
         mBedtimeSettingsUtils.installBedtimeSettings("wellbeing" /* wellbeingPackage */,
                 true /* enabled */);
@@ -95,6 +176,7 @@ public class DarkModeCustomBedtimePreferenceControllerTest {
     }
 
     @Test
+    @DisableFlags(Flags.FLAG_MODES_UI)
     public void getAvailabilityStatus_bedtimeSettingsDisabled_shouldBeUnsupportedOnDevice() {
         mBedtimeSettingsUtils.installBedtimeSettings("wellbeing" /* wellbeingPackage */,
                 false /* enabled */);
@@ -104,6 +186,7 @@ public class DarkModeCustomBedtimePreferenceControllerTest {
     }
 
     @Test
+    @DisableFlags(Flags.FLAG_MODES_UI)
     public void nightModeCustomModeBedtime_bedtimeSettingsExist_shouldShowFooterPreference() {
         mBedtimeSettingsUtils.installBedtimeSettings("wellbeing" /* wellbeingPackage */,
                 true /* enabled */);
@@ -116,6 +199,7 @@ public class DarkModeCustomBedtimePreferenceControllerTest {
     }
 
     @Test
+    @DisableFlags(Flags.FLAG_MODES_UI)
     public void nightModeCustomModeSchedule_bedtimeSettingsExist_shouldHideFooterPreference() {
         mBedtimeSettingsUtils.installBedtimeSettings("wellbeing" /* wellbeingPackage */,
                 true /* enabled */);
@@ -127,6 +211,7 @@ public class DarkModeCustomBedtimePreferenceControllerTest {
     }
 
     @Test
+    @DisableFlags(Flags.FLAG_MODES_UI)
     public void nightModeNo_bedtimeSettingsExist_shouldHideFooterPreference() {
         mBedtimeSettingsUtils.installBedtimeSettings("wellbeing" /* wellbeingPackage */,
                 true /* enabled */);
@@ -138,6 +223,7 @@ public class DarkModeCustomBedtimePreferenceControllerTest {
     }
 
     @Test
+    @DisableFlags(Flags.FLAG_MODES_UI)
     public void nightModeYes_bedtimeSettingsExist_shouldHideFooterPreference() {
         mBedtimeSettingsUtils.installBedtimeSettings("wellbeing" /* wellbeingPackage */,
                 true /* enabled */);
@@ -149,6 +235,7 @@ public class DarkModeCustomBedtimePreferenceControllerTest {
     }
 
     @Test
+    @DisableFlags(Flags.FLAG_MODES_UI)
     public void nightModeAuto_bedtimeSettingsExist_shouldHideFooterPreference() {
         mBedtimeSettingsUtils.installBedtimeSettings("wellbeing" /* wellbeingPackage */,
                 true /* enabled */);