/*
 * Copyright (C) 2023 Apple 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:
 * 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 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
 * 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 "AbstractLineBuilder.h"
#include "FormattingConstraints.h"
#include "InlineLine.h"
#include "InlineLineBuilder.h"
#include "InlineLineTypes.h"

namespace WebCore {
namespace Layout {

class InlineContentBreaker;
struct CandidateTextContent;
struct TextOnlyLineBreakResult;

class TextOnlySimpleLineBuilder : public AbstractLineBuilder {
public:
    TextOnlySimpleLineBuilder(const InlineFormattingContext&, HorizontalConstraints rootHorizontalConstraints, const InlineItems&);
    LineLayoutResult layoutInlineContent(const LineInput&, const std::optional<PreviousLine>&) final;

    static bool isEligibleForSimplifiedTextOnlyInlineLayout(const ElementBox& root, const InlineFormattingState&, const FloatingState* = nullptr);

private:
    InlineItemPosition placeInlineTextContent(const InlineItemRange&);
    InlineItemPosition placeNonWrappingInlineTextContent(const InlineItemRange&);
    TextOnlyLineBreakResult handleOverflowingTextContent(const InlineContentBreaker::ContinuousContent&, const InlineItemRange&);
    TextOnlyLineBreakResult commitCandidateContent(const CandidateTextContent&, const InlineItemRange&);
    void initialize(const InlineItemRange&, const InlineRect& initialLogicalRect, const std::optional<PreviousLine>&);
    void handleLineEnding(InlineItemPosition, size_t layoutRangeEndIndex);
    size_t revertToTrailingItem(const InlineItemRange&, const InlineTextItem&);
    size_t revertToLastNonOverflowingItem(const InlineItemRange&);
    InlineLayoutUnit availableWidth() const;
    bool isWrappingAllowed() const { return m_isWrappingAllowed; }

    bool isFirstFormattedLine() const { return !m_previousLine.has_value(); }

    const InlineFormattingContext& formattingContext() const { return m_inlineFormattingContext; }
    const ElementBox& root() const;

private:
    std::optional<PreviousLine> m_previousLine { };
    std::optional<IntrinsicWidthMode> m_intrinsicWidthMode;
    const InlineFormattingContext& m_inlineFormattingContext;
    std::optional<HorizontalConstraints> m_rootHorizontalConstraints;

    Line m_line;
    InlineContentBreaker m_inlineContentBreaker;
    InlineRect m_lineLogicalRect;
    const InlineItems& m_inlineItems;
    Vector<const InlineTextItem*> m_wrapOpportunityList;
    bool m_isWrappingAllowed { false };
    InlineLayoutUnit m_trimmedTrailingWhitespaceWidth { 0.f };

    std::optional<InlineTextItem> m_partialLeadingTextItem;
};

}
}
