ladybird/Userland/Libraries/LibWeb/CSS/CSSStyleDeclaration.h

/*
 * Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
 * 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 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 HOLDER 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.
 */

#pragma once

#include <AK/String.h>
#include <AK/Vector.h>
#include <LibWeb/Bindings/Wrappable.h>
#include <LibWeb/CSS/StyleValue.h>

namespace Web::CSS {

struct StyleProperty {
    CSS::PropertyID property_id;
    NonnullRefPtr<StyleValue> value;
    bool important { false };
};

class CSSStyleDeclaration
    : public RefCounted<CSSStyleDeclaration>
    , public Bindings::Wrappable {
public:
    using WrapperType = Bindings::CSSStyleDeclarationWrapper;

    static NonnullRefPtr<CSSStyleDeclaration> create(Vector<StyleProperty>&& properties)
    {
        return adopt(*new CSSStyleDeclaration(move(properties)));
    }

    virtual ~CSSStyleDeclaration();

    const Vector<StyleProperty>& properties() const { return m_properties; }

    size_t length() const { return m_properties.size(); }
    String item(size_t index) const;

protected:
    explicit CSSStyleDeclaration(Vector<StyleProperty>&&);

private:
    friend class Bindings::CSSStyleDeclarationWrapper;

    Vector<StyleProperty> m_properties;
};

class ElementInlineCSSStyleDeclaration final : public CSSStyleDeclaration {
public:
    static NonnullRefPtr<ElementInlineCSSStyleDeclaration> create(DOM::Element& element) { return adopt(*new ElementInlineCSSStyleDeclaration(element)); }
    virtual ~ElementInlineCSSStyleDeclaration() override;

    DOM::Element* element() { return m_element.ptr(); }
    const DOM::Element* element() const { return m_element.ptr(); }

private:
    explicit ElementInlineCSSStyleDeclaration(DOM::Element&);

    WeakPtr<DOM::Element> m_element;
};

}

namespace Web::Bindings {

CSSStyleDeclarationWrapper* wrap(JS::GlobalObject&, CSS::CSSStyleDeclaration&);

}