| 1 | // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | package org.chromium.content.browser; |
| 6 | |
| 7 | import org.chromium.base.CalledByNative; |
| 8 | import org.chromium.base.JNINamespace; |
| 9 | |
| 10 | import android.content.Context; |
| 11 | |
| 12 | /** |
| 13 | * Java counterpart of android DownloadController. |
| 14 | * |
| 15 | * Its a singleton class instantiated by the C++ DownloadController. |
| 16 | */ |
| 17 | @JNINamespace("content") |
| 18 | public class DownloadController { |
| 19 | private static final String LOGTAG = "DownloadController"; |
| 20 | private static DownloadController sInstance; |
| 21 | |
| 22 | /** |
| 23 | * Class for notifying the application that download has completed. |
| 24 | */ |
| 25 | public interface DownloadNotificationService { |
| 26 | /** |
| 27 | * Notify the host application that a download is finished. |
| 28 | * @param context Application context. |
| 29 | * @param url The full url to the content that was downloaded. |
| 30 | * @param mimetype The mimetype of downloaded file. |
| 31 | * @param path Path of the downloaded file. |
| 32 | * @param description Description of the downloaded file. |
| 33 | * @param contentLength The file size of the downloaded file (in bytes). |
| 34 | * @param successful Whether the download succeeded. |
| 35 | */ |
| 36 | void onDownloadCompleted(Context context, String url, String mimetype, String path, |
| 37 | String description, long contentLength, boolean successful); |
| 38 | } |
| 39 | |
| 40 | private static DownloadNotificationService sDownloadNotificationService; |
| 41 | |
| 42 | @CalledByNative |
| 43 | public static DownloadController getInstance() { |
| 44 | if (sInstance == null) { |
| 45 | sInstance = new DownloadController(); |
| 46 | } |
| 47 | return sInstance; |
| 48 | } |
| 49 | |
| 50 | private DownloadController() { |
| 51 | nativeInit(); |
| 52 | } |
| 53 | |
| 54 | private static ContentViewDownloadDelegate downloadDelegateFromView(ContentViewCore view) { |
| 55 | return view.getDownloadDelegate(); |
| 56 | } |
| 57 | |
| 58 | public static void setDownloadNotificationService(DownloadNotificationService service) { |
| 59 | sDownloadNotificationService = service; |
| 60 | } |
| 61 | |
| 62 | /** |
| 63 | * Notifies the download delegate of a new GET download and passes all the information |
| 64 | * needed to download the file. |
| 65 | * |
| 66 | * The download delegate is expected to handle the download. |
| 67 | */ |
| 68 | @CalledByNative |
| 69 | public void newHttpGetDownload(ContentViewCore view, String url, |
| 70 | String userAgent, String contentDisposition, String mimetype, |
| 71 | String cookie, String referer, long contentLength) { |
| 72 | ContentViewDownloadDelegate downloadDelagate = downloadDelegateFromView(view); |
| 73 | |
| 74 | if (downloadDelagate != null) { |
| 75 | downloadDelagate.requestHttpGetDownload(url, userAgent, contentDisposition, |
| 76 | mimetype, cookie, referer, contentLength); |
| 77 | } |
| 78 | } |
| 79 | |
| 80 | /** |
| 81 | * Notifies the download delegate that a new download has started. This can |
| 82 | * be either a POST download or a GET download with authentication. |
| 83 | * @param view ContentViewCore associated with the download item. |
| 84 | * @param filename File name of the downloaded file. |
| 85 | * @param mimeType Mime of the downloaded item. |
| 86 | */ |
| 87 | @CalledByNative |
| 88 | public void onDownloadStarted(ContentViewCore view, String filename, String mimeType) { |
| 89 | ContentViewDownloadDelegate downloadDelagate = downloadDelegateFromView(view); |
| 90 | |
| 91 | if (downloadDelagate != null) { |
| 92 | downloadDelagate.onDownloadStarted(filename, mimeType); |
| 93 | } |
| 94 | } |
| 95 | |
| 96 | /** |
| 97 | * Notifies the download delegate that a download completed and passes along info about the |
| 98 | * download. This can be either a POST download or a GET download with authentication. |
| 99 | */ |
| 100 | @CalledByNative |
| 101 | public void onDownloadCompleted(Context context, String url, String mimetype, |
| 102 | String filename, String path, long contentLength, boolean successful) { |
| 103 | if (sDownloadNotificationService != null) { |
| 104 | sDownloadNotificationService.onDownloadCompleted(context, url, mimetype, path, |
| 105 | filename, contentLength, successful); |
| 106 | } |
| 107 | } |
| 108 | |
| 109 | /** |
| 110 | * Notifies the download delegate that a dangerous download started. |
| 111 | */ |
| 112 | @CalledByNative |
| 113 | public void onDangerousDownload(ContentViewCore view, String filename, |
| 114 | int downloadId) { |
| 115 | ContentViewDownloadDelegate downloadDelagate = downloadDelegateFromView(view); |
| 116 | if (downloadDelagate != null) { |
| 117 | downloadDelagate.onDangerousDownload(filename, downloadId); |
| 118 | } |
| 119 | } |
| 120 | |
| 121 | // native methods |
| 122 | private native void nativeInit(); |
| 123 | } |