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/*
* 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.settings.applications;
import android.Manifest;
import android.app.AppOpsManager;
import android.content.Context;
import com.android.settingslib.applications.ApplicationsState;
import com.android.settingslib.applications.ApplicationsState.AppEntry;
import com.android.settingslib.applications.ApplicationsState.AppFilter;
/*
* Connects info of apps that draw overlay to the ApplicationsState. Wraps around the generic
* AppStateAppOpsBridge class to tailor to the semantics of SYSTEM_ALERT_WINDOW. Also provides app
* filters that can use the info.
*/
public class AppStateOverlayBridge extends AppStateAppOpsBridge {
private static final String TAG = "AppStateOverlayBridge";
private static final int APP_OPS_OP_CODE = AppOpsManager.OP_SYSTEM_ALERT_WINDOW;
private static final String PM_SYSTEM_ALERT_WINDOW = Manifest.permission.SYSTEM_ALERT_WINDOW;
private static final String[] PM_PERMISSION = {
PM_SYSTEM_ALERT_WINDOW
};
public AppStateOverlayBridge(Context context, ApplicationsState appState, Callback callback) {
super(context, appState, callback, APP_OPS_OP_CODE, PM_PERMISSION);
}
@Override
protected void updateExtraInfo(AppEntry app, String pkg, int uid) {
app.extraInfo = getOverlayInfo(pkg, uid);
}
public OverlayState getOverlayInfo(String pkg, int uid) {
PermissionState permissionState = super.getPermissionInfo(pkg, uid);
return new OverlayState(permissionState);
}
// TODO: figure out how to filter out system apps for this method
public int getNumberOfPackagesWithPermission() {
return super.getNumPackagesDeclaredPermission();
}
// TODO: figure out how to filter out system apps for this method
public int getNumberOfPackagesCanDrawOverlay() {
return super.getNumPackagesAllowedByAppOps();
}
public static class OverlayState extends AppStateAppOpsBridge.PermissionState {
public OverlayState(PermissionState permissionState) {
super(permissionState.packageName, permissionState.userHandle);
this.packageInfo = permissionState.packageInfo;
this.appOpMode = permissionState.appOpMode;
this.permissionDeclared = permissionState.permissionDeclared;
this.staticPermissionGranted = permissionState.staticPermissionGranted;
}
}
public static final AppFilter FILTER_SYSTEM_ALERT_WINDOW = new AppFilter() {
@Override
public void init() {
}
@Override
public boolean filterApp(AppEntry info) {
return info.extraInfo != null;
}
};
}