92 lines
3.0 KiB
Java
92 lines
3.0 KiB
Java
/*
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* Copyright (C) 2015 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.inputmethod.latin.permissions;
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import android.app.Activity;
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import android.content.Context;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import javax.annotation.Nonnull;
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import javax.annotation.Nullable;
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/**
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* Manager to perform permission related tasks. Always call on the UI thread.
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*/
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public class PermissionsManager {
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public interface PermissionsResultCallback {
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void onRequestPermissionsResult(boolean allGranted);
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}
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private int mRequestCodeId;
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private final Context mContext;
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private final Map<Integer, PermissionsResultCallback> mRequestIdToCallback = new HashMap<>();
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private static PermissionsManager sInstance;
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public PermissionsManager(Context context) {
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mContext = context;
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}
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@Nonnull
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public static synchronized PermissionsManager get(@Nonnull Context context) {
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if (sInstance == null) {
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sInstance = new PermissionsManager(context);
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}
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return sInstance;
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}
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private synchronized int getNextRequestId() {
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return ++mRequestCodeId;
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}
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public synchronized void requestPermissions(@Nonnull PermissionsResultCallback callback,
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@Nullable Activity activity,
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String... permissionsToRequest) {
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List<String> deniedPermissions = PermissionsUtil.getDeniedPermissions(
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mContext, permissionsToRequest);
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if (deniedPermissions.isEmpty()) {
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return;
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}
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// otherwise request the permissions.
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int requestId = getNextRequestId();
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String[] permissionsArray = deniedPermissions.toArray(
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new String[deniedPermissions.size()]);
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mRequestIdToCallback.put(requestId, callback);
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if (activity != null) {
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PermissionsUtil.requestPermissions(activity, requestId, permissionsArray);
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} else {
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PermissionsActivity.run(mContext, requestId, permissionsArray);
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}
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}
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public synchronized void onRequestPermissionsResult(
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int requestCode, String[] permissions, int[] grantResults) {
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PermissionsResultCallback permissionsResultCallback = mRequestIdToCallback.get(requestCode);
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mRequestIdToCallback.remove(requestCode);
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boolean allGranted = PermissionsUtil.allGranted(grantResults);
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permissionsResultCallback.onRequestPermissionsResult(allGranted);
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}
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}
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