| /* |
| * Copyright (C) 2015 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.systemui.statusbar; |
| |
| import com.android.internal.util.Preconditions; |
| import com.android.systemui.statusbar.phone.StatusBarWindowManager; |
| import com.android.systemui.statusbar.policy.HeadsUpManager; |
| import com.android.systemui.statusbar.policy.RemoteInputView; |
| |
| import android.util.ArraySet; |
| |
| import java.lang.ref.WeakReference; |
| import java.util.ArrayList; |
| |
| /** |
| * Keeps track of the currently active {@link RemoteInputView}s. |
| */ |
| public class RemoteInputController { |
| |
| private final ArrayList<WeakReference<NotificationData.Entry>> mOpen = new ArrayList<>(); |
| private final ArraySet<String> mSpinning = new ArraySet<>(); |
| private final ArrayList<Callback> mCallbacks = new ArrayList<>(3); |
| private final HeadsUpManager mHeadsUpManager; |
| |
| public RemoteInputController(StatusBarWindowManager sbwm, HeadsUpManager headsUpManager) { |
| addCallback(sbwm); |
| mHeadsUpManager = headsUpManager; |
| } |
| |
| public void addRemoteInput(NotificationData.Entry entry) { |
| Preconditions.checkNotNull(entry); |
| |
| boolean found = pruneWeakThenRemoveAndContains( |
| entry /* contains */, null /* remove */); |
| if (!found) { |
| mOpen.add(new WeakReference<>(entry)); |
| } |
| |
| apply(entry); |
| } |
| |
| public void removeRemoteInput(NotificationData.Entry entry) { |
| Preconditions.checkNotNull(entry); |
| |
| pruneWeakThenRemoveAndContains(null /* contains */, entry /* remove */); |
| |
| apply(entry); |
| } |
| |
| public void addSpinning(String key) { |
| mSpinning.add(key); |
| } |
| |
| public void removeSpinning(String key) { |
| mSpinning.remove(key); |
| } |
| |
| public boolean isSpinning(String key) { |
| return mSpinning.contains(key); |
| } |
| |
| private void apply(NotificationData.Entry entry) { |
| mHeadsUpManager.setRemoteInputActive(entry, isRemoteInputActive(entry)); |
| boolean remoteInputActive = isRemoteInputActive(); |
| int N = mCallbacks.size(); |
| for (int i = 0; i < N; i++) { |
| mCallbacks.get(i).onRemoteInputActive(remoteInputActive); |
| } |
| } |
| |
| /** |
| * @return true if {@param entry} has an active RemoteInput |
| */ |
| public boolean isRemoteInputActive(NotificationData.Entry entry) { |
| return pruneWeakThenRemoveAndContains(entry /* contains */, null /* remove */); |
| } |
| |
| /** |
| * @return true if any entry has an active RemoteInput |
| */ |
| public boolean isRemoteInputActive() { |
| pruneWeakThenRemoveAndContains(null /* contains */, null /* remove */); |
| return !mOpen.isEmpty(); |
| } |
| |
| /** |
| * Prunes dangling weak references, removes entries referring to {@param remove} and returns |
| * whether {@param contains} is part of the array in a single loop. |
| * @param remove if non-null, removes this entry from the active remote inputs |
| * @return true if {@param contains} is in the set of active remote inputs |
| */ |
| private boolean pruneWeakThenRemoveAndContains( |
| NotificationData.Entry contains, NotificationData.Entry remove) { |
| boolean found = false; |
| for (int i = mOpen.size() - 1; i >= 0; i--) { |
| NotificationData.Entry item = mOpen.get(i).get(); |
| if (item == null || item == remove) { |
| mOpen.remove(i); |
| } else if (item == contains) { |
| found = true; |
| } |
| } |
| return found; |
| } |
| |
| |
| public void addCallback(Callback callback) { |
| Preconditions.checkNotNull(callback); |
| mCallbacks.add(callback); |
| } |
| |
| public void remoteInputSent(NotificationData.Entry entry) { |
| int N = mCallbacks.size(); |
| for (int i = 0; i < N; i++) { |
| mCallbacks.get(i).onRemoteInputSent(entry); |
| } |
| } |
| |
| public void closeRemoteInputs() { |
| if (mOpen.size() == 0) { |
| return; |
| } |
| |
| // Make a copy because closing the remote inputs will modify mOpen. |
| ArrayList<NotificationData.Entry> list = new ArrayList<>(mOpen.size()); |
| for (int i = mOpen.size() - 1; i >= 0; i--) { |
| NotificationData.Entry item = mOpen.get(i).get(); |
| if (item != null && item.row != null) { |
| list.add(item); |
| } |
| } |
| |
| for (int i = list.size() - 1; i >= 0; i--) { |
| NotificationData.Entry item = list.get(i); |
| if (item.row != null) { |
| item.row.closeRemoteInput(); |
| } |
| } |
| } |
| |
| public interface Callback { |
| default void onRemoteInputActive(boolean active) {} |
| |
| default void onRemoteInputSent(NotificationData.Entry entry) {} |
| } |
| } |