From 4a97b31f42c638e6f31e0674b48d5787c568374a Mon Sep 17 00:00:00 2001
From: Candice <chihtinglo@google.com>
Date: Tue, 18 Feb 2025 07:33:05 +0000
Subject: [PATCH] Update the dark theme and EDT description

Bug: 315012822
Test: Manually. See screenshot in the bug
Test: atest DarkModeTopIntroPreferenceControllerTest
Flag: android.view.accessibility.force_invert_color
Change-Id: I94ba1af4e49c461978fc6b31e82e44c88ba19109
---
 res/values/strings.xml                        |  3 +-
 res/xml/dark_mode_settings.xml                |  4 +-
 .../DarkModeTopIntroPreferenceController.java | 59 +++++++++++++
 ...kModeTopIntroPreferenceControllerTest.java | 86 +++++++++++++++++++
 4 files changed, 149 insertions(+), 3 deletions(-)
 create mode 100644 src/com/android/settings/display/darkmode/DarkModeTopIntroPreferenceController.java
 create mode 100644 tests/robotests/src/com/android/settings/display/darkmode/DarkModeTopIntroPreferenceControllerTest.java

diff --git a/res/values/strings.xml b/res/values/strings.xml
index 9ded9ad354b..fbc766c2f34 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -3164,6 +3164,7 @@
     <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>
+    <string name="dark_ui_text_force_invert">Use a dark background to make your screen more comfortable to view and reduce battery usage on some screens. Your theme will change if you have a schedule, when the 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] -->
@@ -5562,7 +5563,7 @@
     <!-- Title for the accessibility preference for forcing all apps to use dark theme. [CHAR LIMIT=35] -->
     <string name="accessibility_force_invert_title">Make more apps dark</string>
     <!-- Summary for the accessibility preference for forcing all apps to use dark theme. [CHAR LIMIT=100] -->
-    <string name="accessibility_force_invert_summary">Automatically convert light theme apps to dark theme</string>
+    <string name="accessibility_force_invert_summary">Expands dark theme to more apps. May not work with all apps.</string>
     <!-- Title for the accessibility preference for disabling animations. [CHAR LIMIT=35] -->
     <string name="accessibility_disable_animations">Remove animations</string>
     <!-- Summary for the accessibility preference for disabling animations. [CHAR LIMIT=60] -->
diff --git a/res/xml/dark_mode_settings.xml b/res/xml/dark_mode_settings.xml
index 44bd807b660..f886daf2e5b 100644
--- a/res/xml/dark_mode_settings.xml
+++ b/res/xml/dark_mode_settings.xml
@@ -22,8 +22,8 @@
 
     <com.android.settingslib.widget.TopIntroPreference
         android:key="dark_ui_top_intro"
-        android:title="@string/dark_ui_text"
-        settings:searchable="false"/>
+        settings:searchable="false"
+        settings:controller="com.android.settings.display.darkmode.DarkModeTopIntroPreferenceController"/>
 
     <com.android.settingslib.widget.MainSwitchPreference
         android:key="dark_ui_activated"
diff --git a/src/com/android/settings/display/darkmode/DarkModeTopIntroPreferenceController.java b/src/com/android/settings/display/darkmode/DarkModeTopIntroPreferenceController.java
new file mode 100644
index 00000000000..3688a05c6b8
--- /dev/null
+++ b/src/com/android/settings/display/darkmode/DarkModeTopIntroPreferenceController.java
@@ -0,0 +1,59 @@
+/*
+ * Copyright 2025 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 android.content.Context;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.preference.PreferenceScreen;
+
+import com.android.settings.R;
+import com.android.settings.core.BasePreferenceController;
+import com.android.settingslib.widget.TopIntroPreference;
+
+/**
+ * Controller of the top info preference in the Dark Mode settings page.
+ *
+ * This should be removed after the flag android.view.accessibility.force_invert_color is launched.
+ */
+public class DarkModeTopIntroPreferenceController extends BasePreferenceController {
+    @Nullable private TopIntroPreference mPreference;
+
+    public DarkModeTopIntroPreferenceController(
+            @NonNull Context context,
+            @NonNull String preferenceKey) {
+        super(context, preferenceKey);
+
+    }
+
+    @Override
+    public int getAvailabilityStatus() {
+        return AVAILABLE_UNSEARCHABLE;
+    }
+
+    @Override
+    public void displayPreference(@NonNull PreferenceScreen screen) {
+        super.displayPreference(screen);
+        mPreference = screen.findPreference(getPreferenceKey());
+        if (android.view.accessibility.Flags.forceInvertColor()) {
+            mPreference.setTitle(R.string.dark_ui_text_force_invert);
+        } else {
+            mPreference.setTitle(R.string.dark_ui_text);
+        }
+    }
+}
diff --git a/tests/robotests/src/com/android/settings/display/darkmode/DarkModeTopIntroPreferenceControllerTest.java b/tests/robotests/src/com/android/settings/display/darkmode/DarkModeTopIntroPreferenceControllerTest.java
new file mode 100644
index 00000000000..f5f25d89f82
--- /dev/null
+++ b/tests/robotests/src/com/android/settings/display/darkmode/DarkModeTopIntroPreferenceControllerTest.java
@@ -0,0 +1,86 @@
+/*
+ * Copyright 2025 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 org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+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.view.accessibility.Flags;
+
+import androidx.preference.PreferenceScreen;
+import androidx.test.core.app.ApplicationProvider;
+
+import com.android.settings.R;
+import com.android.settingslib.widget.TopIntroPreference;
+
+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.mockito.junit.MockitoJUnit;
+import org.mockito.junit.MockitoRule;
+import org.robolectric.RobolectricTestRunner;
+
+/**
+ * Tests for {@link DarkModeTopIntroPreferenceController}.
+ */
+@RunWith(RobolectricTestRunner.class)
+public class DarkModeTopIntroPreferenceControllerTest {
+    @Rule
+    public final MockitoRule mocks = MockitoJUnit.rule();
+    @Rule
+    public final SetFlagsRule mSetFlagsRule = new SetFlagsRule();
+
+    private static final String PREFERENCE_KEY = "preference_key";
+
+    @Mock
+    private PreferenceScreen mScreen;
+    @Mock
+    private TopIntroPreference mPreference;
+    private DarkModeTopIntroPreferenceController mController;
+    private final Context mContext = ApplicationProvider.getApplicationContext();
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        mController = new DarkModeTopIntroPreferenceController(mContext, PREFERENCE_KEY);
+        when(mScreen.findPreference(PREFERENCE_KEY)).thenReturn(mPreference);
+    }
+
+    @Test
+    @EnableFlags(Flags.FLAG_FORCE_INVERT_COLOR)
+    public void enableForceInvert_newPreferenceTitle() {
+        mController.displayPreference(mScreen);
+
+        verify(mPreference).setTitle(eq(R.string.dark_ui_text_force_invert));
+    }
+
+    @Test
+    @DisableFlags(Flags.FLAG_FORCE_INVERT_COLOR)
+    public void disableForceInvert_originalPreferenceTitle() {
+        mController.displayPreference(mScreen);
+
+        verify(mPreference).setTitle(eq(R.string.dark_ui_text));
+    }
+}