third_party/WebKit/Source/core/html/shadow/MeterShadowElement.h

/*
 * Copyright (C) 2011 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:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * 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.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "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 THE COPYRIGHT
 * OWNER 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
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 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef MeterShadowElement_h
#define MeterShadowElement_h

#include "core/html/HTMLDivElement.h"
#include "wtf/Forward.h"

namespace blink {

class HTMLMeterElement;

class MeterShadowElement : public HTMLDivElement {
protected:
    explicit MeterShadowElement(Document&);
    HTMLMeterElement* meterElement() const;

private:
    bool layoutObjectIsNeeded(const ComputedStyle&) override;
};

class MeterInnerElement final : public MeterShadowElement {
public:
    static PassRefPtrWillBeRawPtr<MeterInnerElement> create(Document&);

private:
    explicit MeterInnerElement(Document&);
    bool layoutObjectIsNeeded(const ComputedStyle&) override;
    LayoutObject* createLayoutObject(const ComputedStyle&) override;
};

class MeterBarElement final : public MeterShadowElement {
private:
    explicit MeterBarElement(Document&);

public:
    static PassRefPtrWillBeRawPtr<MeterBarElement> create(Document&);
};

class MeterValueElement final : public MeterShadowElement {
public:
    static PassRefPtrWillBeRawPtr<MeterValueElement> create(Document&);
    void setWidthPercentage(double);
    void updatePseudo() { setShadowPseudoId(valuePseudoId()); }

private:
    explicit MeterValueElement(Document&);
    const AtomicString& valuePseudoId() const;
};

} // namespace blink

#endif // MeterShadowElement_h