LinkLoader.h   [plain text]

/*
 * Copyright (C) 2011 Google Inc. All rights reserved.
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#pragma once

#include "CachedResource.h"
#include "CachedResourceClient.h"
#include "CachedResourceHandle.h"
#include "LinkLoaderClient.h"

#include <wtf/WeakPtr.h>

namespace WebCore {

class Document;
class URL;
class LinkPreloadResourceClient;

struct LinkRelAttribute;

class LinkLoader : private CachedResourceClient {
public:
    explicit LinkLoader(LinkLoaderClient&);
    virtual ~LinkLoader();

    bool loadLink(const LinkRelAttribute&, const URL&, const String& as, const String& crossOrigin, Document&);
    static std::optional<CachedResource::Type> resourceTypeFromAsAttribute(const String& as);

    WeakPtr<LinkLoader> createWeakPtr() { return m_weakPtrFactory.createWeakPtr(); }
    void triggerEvents(const CachedResource&);

private:
    void notifyFinished(CachedResource&) override;
    void preloadIfNeeded(const LinkRelAttribute&, const URL& href, Document&, const String& as, const String& crossOriginMode);

    LinkLoaderClient& m_client;
    CachedResourceHandle<CachedResource> m_cachedLinkResource;
    std::unique_ptr<LinkPreloadResourceClient> m_preloadResourceClient;
    WeakPtrFactory<LinkLoader> m_weakPtrFactory;
};

}