sky/engine/core/frame/SettingsDelegate.h

/*
 * Copyright (C) 2013 Google Inc. All rights reserved.
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 * modification, are permitted provided that the following conditions are
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 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
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 * this software without specific prior written permission.
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#ifndef SKY_ENGINE_CORE_FRAME_SETTINGSDELEGATE_H_
#define SKY_ENGINE_CORE_FRAME_SETTINGSDELEGATE_H_

#include "sky/engine/wtf/OwnPtr.h"
#include "sky/engine/wtf/PassOwnPtr.h"

namespace blink {

class Page;
class Settings;

class SettingsDelegate {
public:
    explicit SettingsDelegate(PassOwnPtr<Settings>);
    virtual ~SettingsDelegate();

    Settings* settings() const { return m_settings.get(); }

    // We currently use an enum instead of individual invalidation
    // functions to make generating Settings.in slightly easier.
    enum ChangeType {
        StyleChange,
        MediaTypeChange,
        MultisamplingChange,
        ImageLoadingChange,
        FontFamilyChange,
        MediaQueryChange,
    };

    virtual void settingsChanged(ChangeType) = 0;

protected:
    OwnPtr<Settings> const m_settings;
};

} // namespace blink

#endif  // SKY_ENGINE_CORE_FRAME_SETTINGSDELEGATE_H_