Revert "Add theme mode design let user can choose theme self"

The CL was intended only for P as a temporary solution.
This reverts commit f0800fa3bd6d5279df3a183cc35ca5489112d73e.

Test: switch wallpapers, observe theme
Bug: 110758454
Change-Id: If10e4d87b6ddac10063b2671abd99e0baccdf92e

3 files changed, 1 insertions, 177 deletions

diff --git a/core/java/android/provider/Settings.java b/core/java/android/provider/Settings.java
index 12f4ca856d61..f6b60065c59f 100644
--- a/core/java/android/provider/Settings.java
+++ b/core/java/android/provider/Settings.java
@@ -7126,35 +7126,6 @@ public final class Settings {
         public static final String UI_NIGHT_MODE = "ui_night_mode";
 
         /**
-         * The current device UI theme mode effect SystemUI and Launcher.<br/>
-         * <b>Values:</b><br/>
-         * 0 - The mode that theme will controlled by wallpaper color.<br/>
-         * 1 - The mode that will always light theme.<br/>
-         * 2 - The mode that will always dark theme.<br/>
-         *
-         * @hide
-         */
-        public static final String THEME_MODE = "theme_mode";
-
-        /**
-         * THEME_MODE value for wallpaper mode.
-         * @hide
-         */
-        public static final int THEME_MODE_WALLPAPER = 0;
-
-        /**
-         * THEME_MODE value for light theme mode.
-         * @hide
-         */
-        public static final int THEME_MODE_LIGHT = 1;
-
-        /**
-         * THEME_MODE value for dark theme mode.
-         * @hide
-         */
-        public static final int THEME_MODE_DARK = 2;
-
-        /**
          * Whether screensavers are enabled.
          * @hide
          */
diff --git a/core/tests/coretests/src/android/provider/SettingsBackupTest.java b/core/tests/coretests/src/android/provider/SettingsBackupTest.java
index 98e35895cd62..3b19c6a699ae 100644
--- a/core/tests/coretests/src/android/provider/SettingsBackupTest.java
+++ b/core/tests/coretests/src/android/provider/SettingsBackupTest.java
@@ -605,7 +605,6 @@ public class SettingsBackupTest {
                  Settings.Secure.SLEEP_TIMEOUT,
                  Settings.Secure.SMS_DEFAULT_APPLICATION,
                  Settings.Secure.SPELL_CHECKER_ENABLED,  // Intentionally removed in Q
-                 Settings.Secure.THEME_MODE,
                  Settings.Secure.TRUST_AGENTS_INITIALIZED,
                  Settings.Secure.TV_INPUT_CUSTOM_LABELS,
                  Settings.Secure.TV_INPUT_HIDDEN_INPUTS,
diff --git a/services/core/java/com/android/server/wallpaper/WallpaperManagerService.java b/services/core/java/com/android/server/wallpaper/WallpaperManagerService.java
index 547ab0ed443d..9d68c63cc38c 100644
--- a/services/core/java/com/android/server/wallpaper/WallpaperManagerService.java
+++ b/services/core/java/com/android/server/wallpaper/WallpaperManagerService.java
@@ -51,7 +51,6 @@ import android.content.pm.ResolveInfo;
 import android.content.pm.ServiceInfo;
 import android.content.pm.UserInfo;
 import android.content.res.Resources;
-import android.database.ContentObserver;
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
 import android.graphics.BitmapRegionDecoder;
@@ -76,7 +75,6 @@ import android.os.ServiceManager;
 import android.os.SystemClock;
 import android.os.UserHandle;
 import android.os.UserManager;
-import android.provider.Settings;
 import android.service.wallpaper.IWallpaperConnection;
 import android.service.wallpaper.IWallpaperEngine;
 import android.service.wallpaper.IWallpaperService;
@@ -338,102 +336,6 @@ public class WallpaperManagerService extends IWallpaperManager.Stub
         }
     }
 
-    /**
-     * Observes changes of theme settings. It will check whether to call
-     * notifyWallpaperColorsChanged by the current theme and updated theme.
-     * The light theme and dark theme are controlled by the hint values in Wallpaper colors,
-     * threrfore, if light theme mode is chosen, HINT_SUPPORTS_DARK_THEME in hint will be
-     * removed and then notify listeners.
-     */
-    private class ThemeSettingsObserver extends ContentObserver {
-
-        public ThemeSettingsObserver(Handler handler) {
-            super(handler);
-        }
-
-        public void startObserving(Context context) {
-            context.getContentResolver().registerContentObserver(
-                    Settings.Secure.getUriFor(Settings.Secure.THEME_MODE),
-                    false,
-                    this);
-        }
-
-        public void stopObserving(Context context) {
-            context.getContentResolver().unregisterContentObserver(this);
-        }
-
-        @Override
-        public void onChange(boolean selfChange) {
-            onThemeSettingsChanged();
-        }
-    }
-
-    /**
-     * Check whether to call notifyWallpaperColorsChanged. Assumed that the theme mode
-     * was wallpaper theme mode and dark wallpaper was set, therefoe, the theme was dark.
-     * Then theme mode changing to dark theme mode, however, theme should not update since
-     * theme was dark already.
-     */
-    private boolean needUpdateLocked(WallpaperColors colors, int themeMode) {
-        if (colors == null) {
-            return false;
-        }
-
-        if (themeMode == mThemeMode) {
-            return false;
-        }
-
-        boolean result = true;
-        boolean supportDarkTheme =
-                (colors.getColorHints() & WallpaperColors.HINT_SUPPORTS_DARK_THEME) != 0;
-        switch (themeMode) {
-            case Settings.Secure.THEME_MODE_WALLPAPER:
-                if (mThemeMode == Settings.Secure.THEME_MODE_LIGHT) {
-                    result = supportDarkTheme;
-                } else {
-                    result = !supportDarkTheme;
-                }
-                break;
-            case Settings.Secure.THEME_MODE_LIGHT:
-                if (mThemeMode == Settings.Secure.THEME_MODE_WALLPAPER) {
-                    result = supportDarkTheme;
-                }
-                break;
-            case Settings.Secure.THEME_MODE_DARK:
-                if (mThemeMode == Settings.Secure.THEME_MODE_WALLPAPER) {
-                    result = !supportDarkTheme;
-                }
-                break;
-            default:
-                Slog.w(TAG, "unkonwn theme mode " + themeMode);
-                return false;
-        }
-        mThemeMode = themeMode;
-        return result;
-    }
-
-    void onThemeSettingsChanged() {
-        WallpaperData wallpaper;
-        synchronized (mLock) {
-            wallpaper = mWallpaperMap.get(mCurrentUserId);
-            int updatedThemeMode = Settings.Secure.getInt(
-                    mContext.getContentResolver(), Settings.Secure.THEME_MODE,
-                    Settings.Secure.THEME_MODE_WALLPAPER);
-
-            if (DEBUG) {
-                Slog.v(TAG, "onThemeSettingsChanged, mode = " + updatedThemeMode);
-            }
-
-            if (!needUpdateLocked(wallpaper.primaryColors, updatedThemeMode)) {
-                return;
-            }
-        }
-
-        if (wallpaper != null) {
-            notifyWallpaperColorsChanged(wallpaper, FLAG_SYSTEM);
-        }
-    }
-
     void notifyLockWallpaperChanged() {
         final IWallpaperManagerCallback cb = mKeyguardListener;
         if (cb != null) {
@@ -511,7 +413,6 @@ public class WallpaperManagerService extends IWallpaperManager.Stub
                 }
                 userAllColorListeners.finishBroadcast();
             }
-            wallpaperColors = getThemeColorsLocked(wallpaperColors);
         }
 
         final int count = colorListeners.size();
@@ -580,40 +481,6 @@ public class WallpaperManagerService extends IWallpaperManager.Stub
     }
 
     /**
-     * We can easily change theme by modified colors hint. This function will check
-     * current theme mode and return the WallpaperColors fit current theme mode.
-     * If color need modified, it will return a copied WallpaperColors which
-     * its ColorsHint is modified to fit current theme mode.
-     *
-     * @param colors a wallpaper primary colors representation
-     */
-    private WallpaperColors getThemeColorsLocked(WallpaperColors colors) {
-        if (colors == null) {
-            Slog.w(TAG, "Cannot get theme colors because WallpaperColors is null.");
-            return null;
-        }
-
-        int colorHints = colors.getColorHints();
-        boolean supportDarkTheme = (colorHints & WallpaperColors.HINT_SUPPORTS_DARK_THEME) != 0;
-        if (mThemeMode == Settings.Secure.THEME_MODE_WALLPAPER ||
-                (mThemeMode == Settings.Secure.THEME_MODE_LIGHT && !supportDarkTheme) ||
-                (mThemeMode == Settings.Secure.THEME_MODE_DARK && supportDarkTheme)) {
-            return colors;
-        }
-
-        WallpaperColors themeColors = new WallpaperColors(colors.getPrimaryColor(),
-                colors.getSecondaryColor(), colors.getTertiaryColor());
-
-        if (mThemeMode == Settings.Secure.THEME_MODE_LIGHT) {
-            colorHints &= ~WallpaperColors.HINT_SUPPORTS_DARK_THEME;
-        } else if (mThemeMode == Settings.Secure.THEME_MODE_DARK) {
-            colorHints |= WallpaperColors.HINT_SUPPORTS_DARK_THEME;
-        }
-        themeColors.setColorHints(colorHints);
-        return themeColors;
-    }
-
-    /**
      * Once a new wallpaper has been written via setWallpaper(...), it needs to be cropped
      * for display.
      */
@@ -809,7 +676,6 @@ public class WallpaperManagerService extends IWallpaperManager.Stub
     final SparseArray<Boolean> mUserRestorecon = new SparseArray<Boolean>();
     int mCurrentUserId = UserHandle.USER_NULL;
     boolean mInAmbientMode;
-    int mThemeMode;
 
     static class WallpaperData {
 
@@ -868,7 +734,6 @@ public class WallpaperManagerService extends IWallpaperManager.Stub
         long lastDiedTime;
         boolean wallpaperUpdating;
         WallpaperObserver wallpaperObserver;
-        ThemeSettingsObserver themeSettingsObserver;
 
         /**
          * List of callbacks registered they should each be notified when the wallpaper is changed.
@@ -1414,10 +1279,6 @@ public class WallpaperManagerService extends IWallpaperManager.Stub
                 wallpaper.wallpaperObserver.stopWatching();
                 wallpaper.wallpaperObserver = null;
             }
-            if (wallpaper.themeSettingsObserver != null) {
-                wallpaper.themeSettingsObserver.stopObserving(mContext);
-                wallpaper.themeSettingsObserver = null;
-            }
         }
     }
 
@@ -1501,13 +1362,6 @@ public class WallpaperManagerService extends IWallpaperManager.Stub
                 systemWallpaper.wallpaperObserver = new WallpaperObserver(systemWallpaper);
                 systemWallpaper.wallpaperObserver.startWatching();
             }
-            if (systemWallpaper.themeSettingsObserver == null) {
-                systemWallpaper.themeSettingsObserver = new ThemeSettingsObserver(null);
-                systemWallpaper.themeSettingsObserver.startObserving(mContext);
-            }
-            mThemeMode = Settings.Secure.getInt(
-                    mContext.getContentResolver(), Settings.Secure.THEME_MODE,
-                    Settings.Secure.THEME_MODE_WALLPAPER);
             switchWallpaper(systemWallpaper, reply);
         }
 
@@ -1981,7 +1835,7 @@ public class WallpaperManagerService extends IWallpaperManager.Stub
         }
 
         synchronized (mLock) {
-            return getThemeColorsLocked(wallpaperData.primaryColors);
+            return wallpaperData.primaryColors;
         }
     }