PageSerializer.h   [plain text]

/*
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#ifndef PageSerializer_h
#define PageSerializer_h

#include "KURL.h"
#include "KURLHash.h"
#include "SharedBuffer.h"
#include <wtf/HashMap.h>
#include <wtf/ListHashSet.h>
#include <wtf/Vector.h>

namespace WebCore {

class CachedImage;
class CSSStyleDeclaration;
class CSSStyleRule;
class CSSStyleSheet;
class Frame;
class Page;

// This class is used to serialize a page contents back to text (typically HTML).
// It serializes all the page frames and retrieves resources such as images and CSS stylesheets.
class PageSerializer {
public:
    struct Resource {
        KURL url;
        String mimeType;
        RefPtr<SharedBuffer> data;
        Resource();
        Resource(const KURL&, const String& mimeType, PassRefPtr<SharedBuffer> data);
    };

    explicit PageSerializer(Vector<Resource>*);

    // Initiates the serialization of the frame's page. All serialized content and retrieved
    // resources are added to the Vector passed to the constructor. The first resource in that
    // vector is the top frame serialized content.
    void serialize(Page*);

    KURL urlForBlankFrame(Frame*);

private:
    void serializeFrame(Frame*);

    // Serializes the stylesheet back to text and adds it to the resources if URL is not-empty.
    // It also adds any resources included in that stylesheet (including any imported stylesheets and their own resources).
    void serializeCSSStyleSheet(CSSStyleSheet*, const KURL&);

    void addImageToResources(CachedImage*, const KURL&);
    void retrieveResourcesForCSSDeclaration(CSSStyleDeclaration*);
    void retrieveResourcesForCSSRule(CSSStyleRule*);

    Vector<Resource>* m_resources;
    ListHashSet<KURL> m_resourceURLs;
    HashMap<Frame*, KURL> m_blankFrameURLs;
    unsigned m_blankFrameCounter;
};

}

#endif