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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 "content/child/notifications/notification_image_loader.h"
#include "base/logging.h"
#include "content/child/child_thread.h"
#include "content/child/image_decoder.h"
#include "content/child/worker_task_runner.h"
#include "third_party/WebKit/public/platform/Platform.h"
#include "third_party/WebKit/public/platform/WebURL.h"
#include "third_party/WebKit/public/platform/WebURLLoader.h"
#include "third_party/skia/include/core/SkBitmap.h"
using blink::WebURL;
using blink::WebURLError;
using blink::WebURLLoader;
using blink::WebURLRequest;
namespace content {
NotificationImageLoader::NotificationImageLoader(
const NotificationImageLoadedCallback& callback)
: callback_(callback),
completed_(false) {}
NotificationImageLoader::~NotificationImageLoader() {}
void NotificationImageLoader::StartOnMainThread(const WebURL& image_url,
int worker_thread_id) {
DCHECK(ChildThread::current());
DCHECK(!url_loader_);
worker_thread_id_ = worker_thread_id;
WebURLRequest request(image_url);
request.setRequestContext(WebURLRequest::RequestContextImage);
url_loader_.reset(blink::Platform::current()->createURLLoader());
url_loader_->loadAsynchronously(request, this);
}
SkBitmap NotificationImageLoader::GetDecodedImage() const {
if (buffer_.empty())
return SkBitmap();
ImageDecoder decoder;
return decoder.Decode(&buffer_[0], buffer_.size());
}
void NotificationImageLoader::didReceiveData(
WebURLLoader* loader,
const char* data,
int data_length,
int encoded_data_length) {
DCHECK(!completed_);
DCHECK_GT(data_length, 0);
buffer_.insert(buffer_.end(), data, data + data_length);
}
void NotificationImageLoader::didFinishLoading(
WebURLLoader* loader,
double finish_time,
int64_t total_encoded_data_length) {
DCHECK(!completed_);
RunCallbackOnWorkerThread();
}
void NotificationImageLoader::didFail(WebURLLoader* loader,
const WebURLError& error) {
if (completed_)
return;
RunCallbackOnWorkerThread();
}
void NotificationImageLoader::RunCallbackOnWorkerThread() {
scoped_refptr<NotificationImageLoader> loader = make_scoped_refptr(this);
if (!worker_thread_id_) {
callback_.Run(loader);
return;
}
WorkerTaskRunner::Instance()->PostTask(
worker_thread_id_,
base::Bind(callback_, loader));
}
} // namespace content
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