| // Copyright 2016 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #import "Downloader.h" |
| |
| #include <assert.h> |
| |
| @implementation Downloader |
| |
| @synthesize delegate = delegate_; |
| |
| // Downloads contents of chromeURL to downloads folders and delegates the work |
| // to the DownloadDelegate class. |
| - (void)downloadChromeImageFrom:(NSURL*)chromeImageURL { |
| NSURLSession* session = |
| [NSURLSession sessionWithConfiguration:[NSURLSessionConfiguration |
| defaultSessionConfiguration] |
| delegate:self |
| delegateQueue:nil]; |
| [[session downloadTaskWithURL:chromeImageURL] resume]; |
| [session finishTasksAndInvalidate]; |
| } |
| |
| // Provides updates to download progress. |
| - (void)URLSession:(NSURLSession*)session |
| downloadTask:(NSURLSessionDownloadTask*)downloadTask |
| didWriteData:(int64_t)bytesWritten |
| totalBytesWritten:(int64_t)totalBytesWritten |
| totalBytesExpectedToWrite:(int64_t)totalBytesExpectedToWrite { |
| double downloadProgressPercentage = |
| (double)totalBytesWritten / totalBytesExpectedToWrite * 100.0; |
| [delegate_ downloader:self percentProgress:downloadProgressPercentage]; |
| } |
| |
| - (void)URLSession:(NSURLSession*)session |
| downloadTask:(NSURLSessionDownloadTask*)downloadTask |
| didFinishDownloadingToURL:(NSURL*)location { |
| assert([location isFileURL]); |
| [delegate_ downloader:self onSuccess:location]; |
| } |
| |
| - (void)URLSession:(NSURLSession*)session |
| task:(NSURLSessionTask*)task |
| didCompleteWithError:(NSError*)error { |
| if (error) { |
| [delegate_ downloader:self onFailure:error]; |
| } |
| } |
| |
| @end |
