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// Copyright (c) 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/renderer/prefetch_helper.h"
#include "chrome/common/prefetch_messages.h"
#include "content/public/renderer/render_frame.h"
#include "third_party/WebKit/public/web/WebLocalFrame.h"
#include "third_party/WebKit/public/web/WebURLLoaderOptions.h"
namespace prefetch {
PrefetchHelper::PrefetchHelper(content::RenderFrame* render_frame)
: content::RenderFrameObserver(render_frame) {
}
PrefetchHelper::~PrefetchHelper() {
STLDeleteElements(&loader_set_);
}
bool PrefetchHelper::OnMessageReceived(
const IPC::Message& message) {
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(PrefetchHelper, message)
IPC_MESSAGE_HANDLER(PrefetchMsg_Prefetch, OnPrefetch)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
void PrefetchHelper::OnPrefetch(const GURL& url) {
blink::WebFrame* frame = render_frame()->GetWebFrame();
blink::WebURLRequest request(url);
request.setRequestContext(blink::WebURLRequest::RequestContextPrefetch);
request.setPriority(blink::WebURLRequest::PriorityVeryLow);
blink::WebURLLoaderOptions options;
options.allowCredentials = true;
options.crossOriginRequestPolicy =
blink::WebURLLoaderOptions::CrossOriginRequestPolicyAllow;
blink::WebURLLoader* loader = frame->createAssociatedURLLoader(options);
loader->loadAsynchronously(request, this);
loader_set_.insert(loader);
}
void PrefetchHelper::didFinishLoading(blink::WebURLLoader* loader,
double finishTime,
int64_t totalEncodedDataLength) {
loader_set_.erase(loader);
}
void PrefetchHelper::didFail(blink::WebURLLoader* loader,
const blink::WebURLError& error) {
loader_set_.erase(loader);
}
} // namespace prefetch
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