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/*
* 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.systemui.appops;
import java.util.List;
/**
* Controller to keep track of applications that have requested access to given App Ops.
*
* It can be subscribed to with callbacks. Additionally, it passes on the information to
* NotificationPresenter to be displayed to the user.
*/
public interface AppOpsController {
/**
* Callback to notify when the state of active AppOps tracked by the controller has changed.
* AppOps that are noted will not be notified every time, just when the tracked state changes
* between currently in use and not.
*/
interface Callback {
void onActiveStateChanged(int code, int uid, String packageName, boolean active);
}
/**
* Adds a callback that will get notified when an AppOp of the type the controller tracks
* changes
*
* @param opsCodes App Ops the callback was interested in checking
* @param cb Callback to report changes
*
* @see #removeCallback(int[], Callback)
*/
void addCallback(int[] opsCodes, Callback cb);
/**
* Removes a callback from those notifified when an AppOp of the type the controller tracks
* changes
*
* @param opsCodes App Ops the callback is interested in checking
* @param cb Callback to stop reporting changes
*
* @see #addCallback(int[], Callback)
*/
void removeCallback(int[] opsCodes, Callback cb);
/**
* Returns a copy of the list containing all the active AppOps that the controller tracks.
*
* @return List of active AppOps information, without paused elements.
*/
List<AppOpItem> getActiveAppOps();
/**
* Returns a copy of the list containing all the active AppOps that the controller tracks.
*
* @param showPaused {@code true} to also obtain paused items. {@code false} otherwise.
* @return List of active AppOps information
*/
List<AppOpItem> getActiveAppOps(boolean showPaused);
/**
* Returns a copy of the list containing all the active AppOps that the controller tracks, for
* a given user id.
*
* @param userId User id to track
* @param showPaused {@code true} to also obtain paused items. {@code false} otherwise.
*
* @return List of active AppOps information for that user id
*/
List<AppOpItem> getActiveAppOpsForUser(int userId, boolean showPaused);
/**
* @return whether this controller is considering the microphone as muted.
*/
boolean isMicMuted();
}
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