Implemented Dark Mode on Autofill UI.

Test: manual verification using modified sample app
Test: atest CtsAutoFillServiceTestCases # to make sure it didn't break anything

Bug: 116457731
Fixes: 116180485

Change-Id: I0b7d5415e6b5b8874e27289bee4c8218d63dba13
diff --git a/services/autofill/java/com/android/server/autofill/ui/AutoFillUI.java b/services/autofill/java/com/android/server/autofill/ui/AutoFillUI.java
index 5962406..fe86ab3 100644
--- a/services/autofill/java/com/android/server/autofill/ui/AutoFillUI.java
+++ b/services/autofill/java/com/android/server/autofill/ui/AutoFillUI.java
@@ -43,6 +43,8 @@
 
 import com.android.internal.logging.MetricsLogger;
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
+import com.android.server.LocalServices;
+import com.android.server.UiModeManagerInternal;
 import com.android.server.UiThread;
 import com.android.server.autofill.Helper;
 
@@ -69,6 +71,7 @@
     private final MetricsLogger mMetricsLogger = new MetricsLogger();
 
     private final @NonNull OverlayControl mOverlayControl;
+    private final @NonNull UiModeManagerInternal mUiModeMgr;
 
     public interface AutoFillUiCallback {
         void authenticate(int requestId, int datasetIndex, @NonNull IntentSender intent,
@@ -86,6 +89,7 @@
     public AutoFillUI(@NonNull Context context) {
         mContext = context;
         mOverlayControl = new OverlayControl(context);
+        mUiModeMgr = LocalServices.getService(UiModeManagerInternal.class);
     }
 
     public void setCallback(@NonNull AutoFillUiCallback callback) {
@@ -193,7 +197,9 @@
             }
             hideAllUiThread(callback);
             mFillUi = new FillUi(mContext, response, focusedId,
-                    filterText, mOverlayControl, serviceLabel, serviceIcon, new FillUi.Callback() {
+                    filterText, mOverlayControl, serviceLabel, serviceIcon,
+                    mUiModeMgr.isNightMode(),
+                    new FillUi.Callback() {
                 @Override
                 public void onResponsePicked(FillResponse response) {
                     log.setType(MetricsEvent.TYPE_DETAIL);
@@ -332,7 +338,7 @@
                     }
                     mMetricsLogger.write(log);
                 }
-            }, isUpdate, compatMode);
+            }, mUiModeMgr.isNightMode(), isUpdate, compatMode);
         });
     }
 
@@ -368,6 +374,7 @@
         pw.println("Autofill UI");
         final String prefix = "  ";
         final String prefix2 = "    ";
+        pw.print(prefix); pw.print("Night mode: "); pw.println(mUiModeMgr.isNightMode());
         if (mFillUi != null) {
             pw.print(prefix); pw.println("showsFillUi: true");
             mFillUi.dump(pw, prefix2);
diff --git a/services/autofill/java/com/android/server/autofill/ui/FillUi.java b/services/autofill/java/com/android/server/autofill/ui/FillUi.java
index 68a495f..742d494 100644
--- a/services/autofill/java/com/android/server/autofill/ui/FillUi.java
+++ b/services/autofill/java/com/android/server/autofill/ui/FillUi.java
@@ -73,7 +73,10 @@
 final class FillUi {
     private static final String TAG = "FillUi";
 
-    private static final int THEME_ID = com.android.internal.R.style.Theme_DeviceDefault_Autofill;
+    private static final int THEME_ID_LIGHT =
+            com.android.internal.R.style.Theme_DeviceDefault_Light_Autofill;
+    private static final int THEME_ID_DARK =
+            com.android.internal.R.style.Theme_DeviceDefault_Autofill;
 
     private static final TypedValue sTempTypedValue = new TypedValue();
 
@@ -117,6 +120,8 @@
 
     private boolean mDestroyed;
 
+    private final int mThemeId;
+
     public static boolean isFullScreen(Context context) {
         if (sFullScreenMode != null) {
             if (sVerbose) Slog.v(TAG, "forcing full-screen mode to " + sFullScreenMode);
@@ -128,10 +133,13 @@
     FillUi(@NonNull Context context, @NonNull FillResponse response,
            @NonNull AutofillId focusedViewId, @NonNull @Nullable String filterText,
            @NonNull OverlayControl overlayControl, @NonNull CharSequence serviceLabel,
-           @NonNull Drawable serviceIcon, @NonNull Callback callback) {
+           @NonNull Drawable serviceIcon, boolean nightMode, @NonNull Callback callback) {
+        if (sVerbose) Slog.v(TAG, "nightMode: " + nightMode);
+        mThemeId = nightMode ? THEME_ID_DARK : THEME_ID_LIGHT;
         mCallback = callback;
         mFullScreen = isFullScreen(context);
-        mContext = new ContextThemeWrapper(context, THEME_ID);
+        mContext = new ContextThemeWrapper(context, mThemeId);
+
         final LayoutInflater inflater = LayoutInflater.from(mContext);
 
         final RemoteViews headerPresentation = response.getHeader();
@@ -216,7 +224,7 @@
             ViewGroup container = decor.findViewById(R.id.autofill_dataset_picker);
             final View content;
             try {
-                response.getPresentation().setApplyTheme(THEME_ID);
+                response.getPresentation().setApplyTheme(mThemeId);
                 content = response.getPresentation().apply(mContext, decor, interceptionHandler);
                 container.addView(content);
             } catch (RuntimeException e) {
@@ -257,7 +265,7 @@
             RemoteViews.OnClickHandler clickBlocker = null;
             if (headerPresentation != null) {
                 clickBlocker = newClickBlocker();
-                headerPresentation.setApplyTheme(THEME_ID);
+                headerPresentation.setApplyTheme(mThemeId);
                 mHeader = headerPresentation.apply(mContext, null, clickBlocker);
                 final LinearLayout headerContainer =
                         decor.findViewById(R.id.autofill_dataset_header);
@@ -275,7 +283,7 @@
                     if (clickBlocker == null) { // already set for header
                         clickBlocker = newClickBlocker();
                     }
-                    footerPresentation.setApplyTheme(THEME_ID);
+                    footerPresentation.setApplyTheme(mThemeId);
                     mFooter = footerPresentation.apply(mContext, null, clickBlocker);
                     // Footer not supported on some platform e.g. TV
                     if (sVerbose) Slog.v(TAG, "adding footer");
@@ -302,7 +310,7 @@
                     final View view;
                     try {
                         if (sVerbose) Slog.v(TAG, "setting remote view for " + focusedViewId);
-                        presentation.setApplyTheme(THEME_ID);
+                        presentation.setApplyTheme(mThemeId);
                         view = presentation.apply(mContext, null, interceptionHandler);
                     } catch (RuntimeException e) {
                         Slog.e(TAG, "Error inflating remote views", e);
@@ -732,6 +740,18 @@
         pw.print(prefix); pw.print("mContentWidth: "); pw.println(mContentWidth);
         pw.print(prefix); pw.print("mContentHeight: "); pw.println(mContentHeight);
         pw.print(prefix); pw.print("mDestroyed: "); pw.println(mDestroyed);
+        pw.print(prefix); pw.print("theme id: "); pw.print(mThemeId);
+        switch (mThemeId) {
+            case THEME_ID_DARK:
+                pw.println(" (dark)");
+                break;
+            case THEME_ID_LIGHT:
+                pw.println(" (light)");
+                break;
+            default:
+                pw.println("(UNKNOWN_MODE)");
+                break;
+        }
         if (mWindow != null) {
             pw.print(prefix); pw.print("mWindow: ");
             final String prefix2 = prefix + "  ";
diff --git a/services/autofill/java/com/android/server/autofill/ui/SaveUi.java b/services/autofill/java/com/android/server/autofill/ui/SaveUi.java
index 9d3d3cb..89b442e 100644
--- a/services/autofill/java/com/android/server/autofill/ui/SaveUi.java
+++ b/services/autofill/java/com/android/server/autofill/ui/SaveUi.java
@@ -72,9 +72,11 @@
  */
 final class SaveUi {
 
-    private static final String TAG = "AutofillSaveUi";
+    private static final String TAG = "SaveUi";
 
-    private static final int THEME_ID =
+    private static final int THEME_ID_LIGHT =
+            com.android.internal.R.style.Theme_DeviceDefault_Light_Autofill_Save;
+    private static final int THEME_ID_DARK =
             com.android.internal.R.style.Theme_DeviceDefault_Autofill_Save;
 
     public interface OnSaveListener {
@@ -144,6 +146,7 @@
     private final String mServicePackageName;
     private final ComponentName mComponentName;
     private final boolean mCompatMode;
+    private final int mThemeId;
 
     private boolean mDestroyed;
 
@@ -152,7 +155,9 @@
            @Nullable String servicePackageName, @NonNull ComponentName componentName,
            @NonNull SaveInfo info, @NonNull ValueFinder valueFinder,
            @NonNull OverlayControl overlayControl, @NonNull OnSaveListener listener,
-           boolean isUpdate, boolean compatMode) {
+           boolean nightMode, boolean isUpdate, boolean compatMode) {
+        if (sVerbose) Slog.v(TAG, "nightMode: " + nightMode);
+        mThemeId = nightMode ? THEME_ID_DARK : THEME_ID_LIGHT;
         mPendingUi= pendingUi;
         mListener = new OneActionThenDestroyListener(listener);
         mOverlayControl = overlayControl;
@@ -160,7 +165,7 @@
         mComponentName = componentName;
         mCompatMode = compatMode;
 
-        context = new ContextThemeWrapper(context, THEME_ID);
+        context = new ContextThemeWrapper(context, mThemeId);
         final LayoutInflater inflater = LayoutInflater.from(context);
         final View view = inflater.inflate(R.layout.autofill_save, null);
 
@@ -250,7 +255,7 @@
         }
         yesButton.setOnClickListener((v) -> mListener.onSave());
 
-        mDialog = new Dialog(context, THEME_ID);
+        mDialog = new Dialog(context, mThemeId);
         mDialog.setContentView(view);
 
         // Dialog can be dismissed when touched outside, but the negative listener should not be
@@ -337,7 +342,7 @@
 
         try {
             // Create the remote view peer.
-            template.setApplyTheme(THEME_ID);
+            template.setApplyTheme(mThemeId);
             final View customSubtitleView = template.apply(context, null, handler);
 
             // Apply batch updates (if any).
@@ -556,7 +561,18 @@
         pw.print(prefix); pw.print("service: "); pw.println(mServicePackageName);
         pw.print(prefix); pw.print("app: "); pw.println(mComponentName.toShortString());
         pw.print(prefix); pw.print("compat mode: "); pw.println(mCompatMode);
-
+        pw.print(prefix); pw.print("theme id: "); pw.print(mThemeId);
+        switch (mThemeId) {
+            case THEME_ID_DARK:
+                pw.println(" (dark)");
+                break;
+            case THEME_ID_LIGHT:
+                pw.println(" (light)");
+                break;
+            default:
+                pw.println("(UNKNOWN_MODE)");
+                break;
+        }
         final View view = mDialog.getWindow().getDecorView();
         final int[] loc = view.getLocationOnScreen();
         pw.print(prefix); pw.print("coordinates: ");
diff --git a/services/core/java/com/android/server/UiModeManagerInternal.java b/services/core/java/com/android/server/UiModeManagerInternal.java
new file mode 100644
index 0000000..ef29069
--- /dev/null
+++ b/services/core/java/com/android/server/UiModeManagerInternal.java
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2018 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.server;
+
+/**
+ * UiModeManager local system service interface.
+ *
+ * @hide Only for use within the system server.
+ */
+public abstract class UiModeManagerInternal {
+
+    public abstract boolean isNightMode();
+}
diff --git a/services/core/java/com/android/server/UiModeManagerService.java b/services/core/java/com/android/server/UiModeManagerService.java
index f436286..5538e72 100644
--- a/services/core/java/com/android/server/UiModeManagerService.java
+++ b/services/core/java/com/android/server/UiModeManagerService.java
@@ -108,6 +108,8 @@
 
     private PowerManager.WakeLock mWakeLock;
 
+    private final LocalService mLocalService = new LocalService();
+
     public UiModeManagerService(Context context) {
         super(context);
     }
@@ -242,6 +244,7 @@
 
         }, TAG + ".onStart");
         publishBinderService(Context.UI_MODE_SERVICE, mService);
+        publishLocalService(UiModeManagerInternal.class, mLocalService);
     }
 
     private final IUiModeManager.Stub mService = new IUiModeManager.Stub() {
@@ -367,7 +370,8 @@
             pw.println("Current UI Mode Service state:");
             pw.print("  mDockState="); pw.print(mDockState);
                     pw.print(" mLastBroadcastState="); pw.println(mLastBroadcastState);
-            pw.print("  mNightMode="); pw.print(mNightMode);
+            pw.print("  mNightMode="); pw.print(mNightMode); pw.print(" (");
+                    pw.print(Shell.nightModeToStr(mNightMode)); pw.print(") ");
                     pw.print(" mNightModeLocked="); pw.print(mNightModeLocked);
                     pw.print(" mCarModeEnabled="); pw.print(mCarModeEnabled);
                     pw.print(" mComputedNightMode="); pw.print(mComputedNightMode);
@@ -839,4 +843,22 @@
             }
         }
     }
+
+    public final class LocalService extends UiModeManagerInternal {
+
+        @Override
+        public boolean isNightMode() {
+            synchronized (mLock) {
+                final boolean isIt = (mConfiguration.uiMode & Configuration.UI_MODE_NIGHT_YES) != 0;
+                if (LOG) {
+                    Slog.d(TAG,
+                        "LocalService.isNightMode(): mNightMode=" + mNightMode
+                        + "; mComputedNightMode=" + mComputedNightMode
+                        + "; uiMode=" + mConfiguration.uiMode
+                        + "; isIt=" + isIt);
+                }
+                return isIt;
+            }
+        }
+    }
 }