blob: 074049f3e8c48f9d45fdb4c830c28065312a1a69 [file] [log] [blame]
/*
* Copyright (C) 2013 Google Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "third_party/blink/renderer/core/html/parser/html_resource_preloader.h"
#include <memory>
#include "third_party/blink/renderer/core/dom/document.h"
#include "third_party/blink/renderer/core/frame/deprecation.h"
#include "third_party/blink/renderer/core/frame/settings.h"
#include "third_party/blink/renderer/core/loader/document_loader.h"
#include "third_party/blink/renderer/platform/loader/fetch/resource.h"
#include "third_party/blink/renderer/platform/loader/fetch/resource_fetcher.h"
namespace blink {
HTMLResourcePreloader::HTMLResourcePreloader(Document& document)
: document_(document) {}
HTMLResourcePreloader* HTMLResourcePreloader::Create(Document& document) {
return MakeGarbageCollected<HTMLResourcePreloader>(document);
}
void HTMLResourcePreloader::Trace(Visitor* visitor) {
visitor->Trace(document_);
}
static void PreconnectHost(
PreloadRequest* request,
const NetworkHintsInterface& network_hints_interface) {
DCHECK(request);
DCHECK(request->IsPreconnect());
KURL host(request->BaseURL(), request->ResourceURL());
if (!host.IsValid() || !host.ProtocolIsInHTTPFamily())
return;
network_hints_interface.PreconnectHost(host, request->CrossOrigin());
}
void HTMLResourcePreloader::Preload(
std::unique_ptr<PreloadRequest> preload,
const NetworkHintsInterface& network_hints_interface) {
if (preload->IsPreconnect()) {
PreconnectHost(preload.get(), network_hints_interface);
return;
}
// TODO(yoichio): Should preload if document is imported.
if (!document_->Loader())
return;
preload->Start(document_);
}
} // namespace blink