/*
 * Copyright (C) 2021 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
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 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */

#pragma once

#include "InlineLineBuilder.h"

namespace WebCore {
namespace Layout {

class FloatingContext;
class InlineFormattingContext;
class InlineLevelBox;

class InlineFormattingUtils {
public:
    InlineFormattingUtils(const InlineFormattingContext&);

    InlineLayoutUnit logicalTopForNextLine(const LineLayoutResult&, const InlineRect& lineLogicalRect, const FloatingContext&) const;

    ContentHeightAndMargin inlineBlockContentHeightAndMargin(const Box&, const HorizontalConstraints&, const OverriddenVerticalValues&) const;
    ContentWidthAndMargin inlineBlockContentWidthAndMargin(const Box&, const HorizontalConstraints&, const OverriddenHorizontalValues&) const;

    enum class IsIntrinsicWidthMode : bool { No, Yes };
    InlineLayoutUnit computedTextIndent(IsIntrinsicWidthMode, std::optional<bool> previousLineEndsWithLineBreak, InlineLayoutUnit availableWidth) const;

    bool inlineLevelBoxAffectsLineBox(const InlineLevelBox&) const;

    InlineLayoutUnit initialLineHeight(bool isFirstLine) const;

    FloatingContext::Constraints floatConstraintsForLine(InlineLayoutUnit lineLogicalTop, InlineLayoutUnit contentLogicalHeight, const FloatingContext&) const;

    static InlineRect flipVisualRectToLogicalForWritingMode(const InlineRect& visualRect, WritingMode);

    void adjustMarginStartForListMarker(const ElementBox&, LayoutUnit nestedListMarkerMarginStart, InlineLayoutUnit rootInlineBoxOffset) const;

    static InlineLayoutUnit horizontalAlignmentOffset(const RenderStyle& rootStyle, InlineLayoutUnit contentLogicalRight, InlineLayoutUnit lineLogicalRight, InlineLayoutUnit hangingTrailingWidth, const Line::RunList& runs, bool isLastLine, std::optional<TextDirection> inlineBaseDirectionOverride = std::nullopt);

    static InlineItemPosition leadingInlineItemPositionForNextLine(InlineItemPosition lineContentEnd, std::optional<InlineItemPosition> previousLineContentEnd, bool lineHasIntrusiveOrNewlyPlacedFloat, InlineItemPosition layoutRangeEnd);

    InlineLayoutUnit inlineItemWidth(const InlineItem&, InlineLayoutUnit contentLogicalLeft, bool useFirstLineStyle) const;

    size_t nextWrapOpportunity(size_t startIndex, const InlineItemRange& layoutRange, std::span<const InlineItem>) const;

    static std::pair<InlineLayoutUnit, InlineLayoutUnit> textEmphasisForInlineBox(const Box&, const ElementBox& rootBox);

    static LineEndingTruncationPolicy lineEndingTruncationPolicy(const RenderStyle& rootStyle, size_t numberOfLinesWithInlineContent, std::optional<size_t> numberOfVisibleLinesAllowed, bool currentLineHasInlineContent);

    bool shouldDiscardRemainingContentInBlockDirection(size_t numberOfLinesWithInlineContent) const;

private:
    InlineLayoutUnit contentLeftAfterLastLine(const ConstraintsForInFlowContent&, std::optional<InlineLayoutUnit> lastLineLogicalBottom, const FloatingContext&) const;
    bool isAtSoftWrapOpportunity(const InlineItem& previous, const InlineItem& next) const;

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

private:
    const InlineFormattingContext& m_inlineFormattingContext;
};

}
}

