| /* |
| * 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.providers.downloads; |
| |
| import static com.android.providers.downloads.Constants.TAG; |
| |
| import android.content.ActivityNotFoundException; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.pm.PackageInstaller; |
| import android.net.Uri; |
| import android.util.Log; |
| |
| import java.io.File; |
| |
| /** |
| * Contains helper methods to convert between raw document ids and their file-system file paths. |
| */ |
| public class RawDocumentsHelper { |
| /** The default prefix to raw file documentIds */ |
| public static final String RAW_PREFIX = "raw:"; |
| |
| public static boolean isRawDocId(String docId) { |
| return docId != null && docId.startsWith(RAW_PREFIX); |
| } |
| |
| public static String getDocIdForFile(File file) { |
| return RAW_PREFIX + file.getAbsolutePath(); |
| } |
| |
| public static String getAbsoluteFilePath(String rawDocumentId) { |
| return rawDocumentId.substring(RAW_PREFIX.length()); |
| } |
| |
| /** |
| * Build and start an {@link Intent} to view the download with given raw documentId. |
| */ |
| public static boolean startViewIntent(Context context, Uri documentUri) { |
| final Intent intent = new Intent(Intent.ACTION_VIEW); |
| intent.setData(documentUri); |
| intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION |
| | Intent.FLAG_GRANT_WRITE_URI_PERMISSION); |
| intent.putExtra(Intent.EXTRA_ORIGINATING_UID, PackageInstaller.SessionParams.UID_UNKNOWN); |
| |
| try { |
| context.startActivity(intent); |
| return true; |
| } catch (ActivityNotFoundException e) { |
| Log.w(TAG, "Failed to start " + intent + ": " + e); |
| return false; |
| } |
| } |
| |
| } |