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// Copyright 2014 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.
#include "chrome/browser/bitmap_fetcher.h"
#include "chrome/browser/profiles/profile.h"
#include "content/public/browser/browser_thread.h"
#include "net/url_request/url_fetcher.h"
#include "net/url_request/url_request_status.h"
namespace chrome {
BitmapFetcher::BitmapFetcher(const GURL& url,
BitmapFetcherDelegate* delegate)
: url_(url),
delegate_(delegate) {
}
BitmapFetcher::~BitmapFetcher() {}
void BitmapFetcher::Start(Profile* profile) {
if (url_fetcher_ != NULL)
return;
url_fetcher_.reset(net::URLFetcher::Create(url_, net::URLFetcher::GET, this));
url_fetcher_->SetRequestContext(profile->GetRequestContext());
url_fetcher_->Start();
}
// Methods inherited from URLFetcherDelegate.
void BitmapFetcher::OnURLFetchComplete(const net::URLFetcher* source) {
DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
if (source->GetStatus().status() != net::URLRequestStatus::SUCCESS) {
ReportFailure();
return;
}
std::string image_data;
source->GetResponseAsString(&image_data);
image_decoder_ =
new ImageDecoder(this, image_data, ImageDecoder::DEFAULT_CODEC);
// Call start to begin decoding. The ImageDecoder will call OnImageDecoded
// with the data when it is done.
scoped_refptr<base::MessageLoopProxy> task_runner =
content::BrowserThread::GetMessageLoopProxyForThread(
content::BrowserThread::UI);
image_decoder_->Start(task_runner);
}
void BitmapFetcher::OnURLFetchDownloadProgress(const net::URLFetcher* source,
int64 current,
int64 total) {
// Do nothing here.
}
// Methods inherited from ImageDecoder::Delegate.
void BitmapFetcher::OnImageDecoded(const ImageDecoder* decoder,
const SkBitmap& decoded_image) {
// Make a copy of the bitmap which we pass back to the UI thread.
scoped_ptr<SkBitmap> bitmap(new SkBitmap());
decoded_image.deepCopyTo(bitmap.get());
// Report success.
delegate_->OnFetchComplete(url_, bitmap.get());
}
void BitmapFetcher::OnDecodeImageFailed(const ImageDecoder* decoder) {
ReportFailure();
}
void BitmapFetcher::ReportFailure() {
delegate_->OnFetchComplete(url_, NULL);
}
} // namespace chrome
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