InlineFormattingContext.h   [plain text]

/*
 * Copyright (C) 2018 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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 */

#pragma once

#if ENABLE(LAYOUT_FORMATTING_CONTEXT)

#include "FormattingContext.h"
#include <wtf/IsoMalloc.h>

namespace WebCore {

namespace Layout {

class InlineFormattingState;

// This class implements the layout logic for inline formatting contexts.
// https://www.w3.org/TR/CSS22/visuren.html#inline-formatting
class InlineFormattingContext : public FormattingContext {
    WTF_MAKE_ISO_ALLOCATED(InlineFormattingContext);
public:
    InlineFormattingContext(const Box& formattingContextRoot);

    void layout(LayoutContext&, FormattingState&) const override;
    std::unique_ptr<FormattingState> createFormattingState(Ref<FloatingState>&&, const LayoutContext&) const override;
    Ref<FloatingState> createOrFindFloatingState(LayoutContext&) const override;

private:
    void computeStaticPosition(LayoutContext&, const Box&, Display::Box&) const override;
    void computeInFlowPositionedPosition(LayoutContext&, const Box&, Display::Box&) const override;

    InstrinsicWidthConstraints instrinsicWidthConstraints(LayoutContext&, const Box&) const override;
};

}
}
#endif