| /* |
| * 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.settings.homepage.contextualcards; |
| |
| import static com.android.settings.intelligence.ContextualCardProto.ContextualCard.Category.STICKY_VALUE; |
| import static com.android.settings.slices.CustomSliceRegistry.BLUETOOTH_DEVICES_SLICE_URI; |
| import static com.android.settings.slices.CustomSliceRegistry.CONTEXTUAL_WIFI_SLICE_URI; |
| |
| import android.app.settings.SettingsEnums; |
| import android.content.Context; |
| import android.database.ContentObserver; |
| import android.database.Cursor; |
| import android.net.Uri; |
| import android.os.Handler; |
| import android.os.Looper; |
| import android.provider.Settings; |
| import android.util.Log; |
| |
| import androidx.annotation.NonNull; |
| import androidx.annotation.VisibleForTesting; |
| |
| import com.android.settings.R; |
| import com.android.settings.homepage.contextualcards.logging.ContextualCardLogUtils; |
| import com.android.settings.overlay.FeatureFactory; |
| import com.android.settingslib.core.instrumentation.MetricsFeatureProvider; |
| import com.android.settingslib.utils.AsyncLoaderCompat; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.Executors; |
| import java.util.concurrent.Future; |
| import java.util.concurrent.TimeUnit; |
| import java.util.stream.Collectors; |
| |
| public class ContextualCardLoader extends AsyncLoaderCompat<List<ContextualCard>> { |
| |
| @VisibleForTesting |
| static final int DEFAULT_CARD_COUNT = 1; |
| @VisibleForTesting |
| static final String CONTEXTUAL_CARD_COUNT = "contextual_card_count"; |
| static final int CARD_CONTENT_LOADER_ID = 1; |
| |
| private static final String TAG = "ContextualCardLoader"; |
| private static final long ELIGIBILITY_CHECKER_TIMEOUT_MS = 400; |
| |
| private final ContentObserver mObserver = new ContentObserver( |
| new Handler(Looper.getMainLooper())) { |
| @Override |
| public void onChange(boolean selfChange, Uri uri) { |
| if (isStarted()) { |
| mNotifyUri = uri; |
| forceLoad(); |
| } |
| } |
| }; |
| |
| @VisibleForTesting |
| Uri mNotifyUri; |
| |
| private final Context mContext; |
| |
| ContextualCardLoader(Context context) { |
| super(context); |
| mContext = context.getApplicationContext(); |
| } |
| |
| @Override |
| protected void onStartLoading() { |
| super.onStartLoading(); |
| mNotifyUri = null; |
| mContext.getContentResolver().registerContentObserver(CardContentProvider.REFRESH_CARD_URI, |
| false /*notifyForDescendants*/, mObserver); |
| mContext.getContentResolver().registerContentObserver(CardContentProvider.DELETE_CARD_URI, |
| false /*notifyForDescendants*/, mObserver); |
| } |
| |
| @Override |
| protected void onStopLoading() { |
| super.onStopLoading(); |
| mContext.getContentResolver().unregisterContentObserver(mObserver); |
| } |
| |
| @Override |
| protected void onDiscardResult(List<ContextualCard> result) { |
| |
| } |
| |
| @NonNull |
| @Override |
| public List<ContextualCard> loadInBackground() { |
| final List<ContextualCard> result = new ArrayList<>(); |
| if (mContext.getResources().getBoolean(R.bool.config_use_legacy_suggestion)) { |
| Log.d(TAG, "Skipping - in legacy suggestion mode"); |
| return result; |
| } |
| try (Cursor cursor = getContextualCardsFromProvider()) { |
| if (cursor.getCount() > 0) { |
| for (cursor.moveToFirst(); !cursor.isAfterLast(); cursor.moveToNext()) { |
| final ContextualCard card = new ContextualCard(cursor); |
| if (isLargeCard(card)) { |
| result.add(card.mutate().setIsLargeCard(true).build()); |
| } else { |
| result.add(card); |
| } |
| } |
| } |
| } |
| return getDisplayableCards(result); |
| } |
| |
| // Get final displayed cards and log what cards will be displayed/hidden |
| @VisibleForTesting |
| List<ContextualCard> getDisplayableCards(List<ContextualCard> candidates) { |
| final List<ContextualCard> eligibleCards = filterEligibleCards(candidates); |
| final List<ContextualCard> stickyCards = new ArrayList<>(); |
| final List<ContextualCard> visibleCards = new ArrayList<>(); |
| final List<ContextualCard> hiddenCards = new ArrayList<>(); |
| |
| final int maxCardCount = getCardCount(mContext); |
| eligibleCards.forEach(card -> { |
| if (card.getCategory() != STICKY_VALUE) { |
| return; |
| } |
| if (stickyCards.size() < maxCardCount) { |
| stickyCards.add(card); |
| } else { |
| hiddenCards.add(card); |
| } |
| }); |
| |
| final int nonStickyCardCount = maxCardCount - stickyCards.size(); |
| eligibleCards.forEach(card -> { |
| if (card.getCategory() == STICKY_VALUE) { |
| return; |
| } |
| if (visibleCards.size() < nonStickyCardCount) { |
| visibleCards.add(card); |
| } else { |
| hiddenCards.add(card); |
| } |
| }); |
| visibleCards.addAll(stickyCards); |
| |
| if (!CardContentProvider.DELETE_CARD_URI.equals(mNotifyUri)) { |
| final MetricsFeatureProvider metricsFeatureProvider = |
| FeatureFactory.getFactory(mContext).getMetricsFeatureProvider(); |
| |
| metricsFeatureProvider.action(mContext, |
| SettingsEnums.ACTION_CONTEXTUAL_CARD_NOT_SHOW, |
| ContextualCardLogUtils.buildCardListLog(hiddenCards)); |
| } |
| |
| // Add a default card if no other visible cards |
| if (visibleCards.isEmpty() && maxCardCount == 1) { |
| final ContextualCard defaultCard = FeatureFactory.getFactory(mContext) |
| .getContextualCardFeatureProvider(mContext).getDefaultContextualCard(); |
| if (defaultCard != null) { |
| Log.i(TAG, "Default card: " + defaultCard.getSliceUri()); |
| visibleCards.add(defaultCard); |
| } |
| } |
| return visibleCards; |
| } |
| |
| static int getCardCount(Context context) { |
| // Return the card count if Settings.Global has KEY_CONTEXTUAL_CARD_COUNT key, |
| // otherwise return the default one. |
| return Settings.Global.getInt(context.getContentResolver(), |
| CONTEXTUAL_CARD_COUNT, DEFAULT_CARD_COUNT); |
| } |
| |
| @VisibleForTesting |
| Cursor getContextualCardsFromProvider() { |
| final ContextualCardFeatureProvider cardFeatureProvider = |
| FeatureFactory.getFactory(mContext).getContextualCardFeatureProvider(mContext); |
| return cardFeatureProvider.getContextualCards(); |
| } |
| |
| @VisibleForTesting |
| List<ContextualCard> filterEligibleCards(List<ContextualCard> candidates) { |
| if (candidates.isEmpty()) { |
| return candidates; |
| } |
| |
| final ExecutorService executor = Executors.newFixedThreadPool(candidates.size()); |
| final List<ContextualCard> cards = new ArrayList<>(); |
| List<Future<ContextualCard>> eligibleCards = new ArrayList<>(); |
| |
| final List<EligibleCardChecker> checkers = candidates.stream() |
| .map(card -> new EligibleCardChecker(mContext, card)) |
| .collect(Collectors.toList()); |
| try { |
| eligibleCards = executor.invokeAll(checkers, ELIGIBILITY_CHECKER_TIMEOUT_MS, |
| TimeUnit.MILLISECONDS); |
| } catch (InterruptedException e) { |
| Log.w(TAG, "Failed to get eligible states for all cards", e); |
| } |
| executor.shutdown(); |
| |
| // Collect future and eligible cards |
| for (int i = 0; i < eligibleCards.size(); i++) { |
| final Future<ContextualCard> cardFuture = eligibleCards.get(i); |
| if (cardFuture.isCancelled()) { |
| Log.w(TAG, "Timeout getting eligible state for card: " |
| + candidates.get(i).getSliceUri()); |
| continue; |
| } |
| |
| try { |
| final ContextualCard card = cardFuture.get(); |
| if (card != null) { |
| cards.add(card); |
| } |
| } catch (Exception e) { |
| Log.w(TAG, "Failed to get eligible state for card", e); |
| } |
| } |
| return cards; |
| } |
| |
| private boolean isLargeCard(ContextualCard card) { |
| return card.getSliceUri().equals(CONTEXTUAL_WIFI_SLICE_URI) |
| || card.getSliceUri().equals(BLUETOOTH_DEVICES_SLICE_URI); |
| } |
| |
| public interface CardContentLoaderListener { |
| void onFinishCardLoading(List<ContextualCard> contextualCards); |
| } |
| } |