/*
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* Copyright (C) 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.systemui.theme;
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import android.app.ActivityManager;
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import android.content.BroadcastReceiver;
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import android.content.Context;
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import android.content.Intent;
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import android.content.IntentFilter;
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import android.content.om.OverlayManager;
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import android.content.pm.UserInfo;
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import android.database.ContentObserver;
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import android.net.Uri;
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import android.os.AsyncTask;
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import android.os.Handler;
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import android.os.UserHandle;
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import android.os.UserManager;
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import android.provider.Settings;
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import android.text.TextUtils;
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import android.util.ArrayMap;
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import android.util.Log;
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import com.android.systemui.Dependency;
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import com.android.systemui.R;
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import com.android.systemui.SystemUI;
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import com.google.android.collect.Sets;
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import org.json.JSONException;
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import org.json.JSONObject;
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import java.util.Map;
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import java.util.Set;
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/**
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* Controls the application of theme overlays across the system for all users.
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* This service is responsible for:
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* - Observing changes to Settings.Secure.THEME_CUSTOMIZATION_OVERLAY_PACKAGES and applying the
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* corresponding overlays across the system
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* - Observing user switches, applying the overlays for the current user to user 0 (for systemui)
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* - Observing work profile changes and applying overlays from the primary user to their
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* associated work profiles
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*/
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public class ThemeOverlayController extends SystemUI {
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private static final String TAG = "ThemeOverlayController";
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private static final boolean DEBUG = false;
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private ThemeOverlayManager mThemeManager;
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private UserManager mUserManager;
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@Override
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public void start() {
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if (DEBUG) Log.d(TAG, "Start");
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mUserManager = mContext.getSystemService(UserManager.class);
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mThemeManager = new ThemeOverlayManager(
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mContext.getSystemService(OverlayManager.class),
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AsyncTask.THREAD_POOL_EXECUTOR,
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mContext.getString(R.string.launcher_overlayable_package),
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mContext.getString(R.string.themepicker_overlayable_package));
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final Handler bgHandler = Dependency.get(Dependency.BG_HANDLER);
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final IntentFilter filter = new IntentFilter();
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filter.addAction(Intent.ACTION_USER_SWITCHED);
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filter.addAction(Intent.ACTION_MANAGED_PROFILE_ADDED);
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mContext.registerReceiverAsUser(new BroadcastReceiver() {
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@Override
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public void onReceive(Context context, Intent intent) {
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if (DEBUG) Log.d(TAG, "Updating overlays for user switch / profile added.");
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updateThemeOverlays();
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}
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}, UserHandle.ALL, filter, null, bgHandler);
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mContext.getContentResolver().registerContentObserver(
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Settings.Secure.getUriFor(Settings.Secure.THEME_CUSTOMIZATION_OVERLAY_PACKAGES),
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false,
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new ContentObserver(bgHandler) {
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@Override
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public void onChange(boolean selfChange, Uri uri, int userId) {
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if (DEBUG) Log.d(TAG, "Overlay changed for user: " + userId);
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if (ActivityManager.getCurrentUser() == userId) {
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updateThemeOverlays();
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}
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}
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},
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UserHandle.USER_ALL);
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updateThemeOverlays();
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}
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private void updateThemeOverlays() {
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final int currentUser = ActivityManager.getCurrentUser();
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final String overlayPackageJson = Settings.Secure.getStringForUser(
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mContext.getContentResolver(), Settings.Secure.THEME_CUSTOMIZATION_OVERLAY_PACKAGES,
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currentUser);
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if (DEBUG) Log.d(TAG, "updateThemeOverlays: " + overlayPackageJson);
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final Map<String, String> categoryToPackage = new ArrayMap<>();
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if (!TextUtils.isEmpty(overlayPackageJson)) {
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try {
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JSONObject object = new JSONObject(overlayPackageJson);
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for (String category : ThemeOverlayManager.THEME_CATEGORIES) {
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if (object.has(category)) {
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categoryToPackage.put(category, object.getString(category));
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}
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}
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} catch (JSONException e) {
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Log.i(TAG, "Failed to parse THEME_CUSTOMIZATION_OVERLAY_PACKAGES.", e);
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}
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}
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Set<UserHandle> userHandles = Sets.newHashSet(UserHandle.of(currentUser));
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for (UserInfo userInfo : mUserManager.getEnabledProfiles(currentUser)) {
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if (userInfo.isManagedProfile()) {
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userHandles.add(userInfo.getUserHandle());
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}
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}
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mThemeManager.applyCurrentUserOverlays(categoryToPackage, userHandles);
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}
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}
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