| /* |
| * Copyright (C) 2017 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.wallpaper.module; |
| |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.pm.PackageManager; |
| import android.content.pm.ResolveInfo; |
| import android.net.Uri; |
| import android.os.AsyncTask; |
| |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| import androidx.annotation.Nullable; |
| |
| /** |
| * Checks whether an explore action can be taken for the given uri, i.e. whether any activity on |
| * the device is capable of handling it. |
| */ |
| public class DefaultExploreIntentChecker implements ExploreIntentChecker { |
| private Context mAppContext; |
| |
| private Map<Uri, Intent> mUriToActionViewIntentMap; |
| |
| public DefaultExploreIntentChecker(Context appContext) { |
| mAppContext = appContext; |
| mUriToActionViewIntentMap = new HashMap<>(); |
| } |
| |
| @Override |
| public void fetchValidActionViewIntent(Uri uri, IntentReceiver receiver) { |
| if (mUriToActionViewIntentMap.containsKey(uri)) { |
| receiver.onIntentReceived(mUriToActionViewIntentMap.get(uri)); |
| return; |
| } |
| |
| new FetchActionViewIntentTask(mAppContext, uri, receiver).execute(); |
| } |
| |
| private class FetchActionViewIntentTask extends AsyncTask<Void, Void, Intent> { |
| private Context mAppContext; |
| private Uri mUri; |
| private IntentReceiver mReceiver; |
| |
| public FetchActionViewIntentTask(Context appContext, Uri uri, IntentReceiver receiver) { |
| mAppContext = appContext; |
| mUri = uri; |
| mReceiver = receiver; |
| } |
| |
| @Nullable |
| @Override |
| protected Intent doInBackground(Void... params) { |
| Intent actionViewIntent = new Intent(Intent.ACTION_VIEW, mUri); |
| |
| PackageManager pm = mAppContext.getPackageManager(); |
| List<ResolveInfo> activities = pm.queryIntentActivities(actionViewIntent, /* flags */ 0); |
| |
| Intent result = activities.isEmpty() ? null : actionViewIntent; |
| mUriToActionViewIntentMap.put(mUri, result); |
| |
| return result; |
| } |
| |
| @Override |
| protected void onPostExecute(Intent intent) { |
| mReceiver.onIntentReceived(intent); |
| } |
| } |
| } |
| |