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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/bind.h"
#include "base/location.h"
#include "base/logging.h"
#include "base/metrics/histogram_macros.h"
#include "base/single_thread_task_runner.h"
#include "content/child/image_decoder.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/WebKit/public/platform/WebURLRequest.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 ImageLoadCompletedCallback& callback,
const scoped_refptr<base::SingleThreadTaskRunner>& worker_task_runner,
const scoped_refptr<base::SingleThreadTaskRunner>& main_task_runner)
: callback_(callback),
worker_task_runner_(worker_task_runner),
main_task_runner_(main_task_runner),
completed_(false) {}
NotificationImageLoader::~NotificationImageLoader() {
DCHECK(main_task_runner_->BelongsToCurrentThread());
}
void NotificationImageLoader::StartOnMainThread(const GURL& image_url) {
DCHECK(main_task_runner_->BelongsToCurrentThread());
DCHECK(!url_loader_);
start_time_ = base::TimeTicks::Now();
WebURL image_web_url(image_url);
WebURLRequest request(image_web_url);
request.setRequestContext(WebURLRequest::RequestContextImage);
url_loader_.reset(blink::Platform::current()->createURLLoader());
url_loader_->loadAsynchronously(request, this);
}
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_);
UMA_HISTOGRAM_LONG_TIMES("Notifications.Icon.LoadFinishTime",
base::TimeTicks::Now() - start_time_);
RunCallbackOnWorkerThread();
}
void NotificationImageLoader::didFail(WebURLLoader* loader,
const WebURLError& error) {
if (completed_)
return;
UMA_HISTOGRAM_LONG_TIMES("Notifications.Icon.LoadFailTime",
base::TimeTicks::Now() - start_time_);
RunCallbackOnWorkerThread();
}
void NotificationImageLoader::RunCallbackOnWorkerThread() {
url_loader_.reset();
completed_ = true;
SkBitmap icon = GetDecodedImage();
if (worker_task_runner_->BelongsToCurrentThread()) {
callback_.Run(icon);
} else {
worker_task_runner_->PostTask(FROM_HERE, base::Bind(callback_, icon));
}
}
SkBitmap NotificationImageLoader::GetDecodedImage() const {
DCHECK(completed_);
UMA_HISTOGRAM_CUSTOM_COUNTS("Notifications.Icon.FileSize", buffer_.size(), 1,
10000000 /* ~10mb */, 50);
if (buffer_.empty())
return SkBitmap();
ImageDecoder decoder;
return decoder.Decode(&buffer_[0], buffer_.size());
}
void NotificationImageLoader::DeleteOnCorrectThread() const {
if (!main_task_runner_->BelongsToCurrentThread()) {
main_task_runner_->DeleteSoon(FROM_HERE, this);
return;
}
delete this;
}
} // namespace content
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