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/*
* 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
* 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
#if ENABLE(LAYOUT_FORMATTING_CONTEXT)
#include "FormattingContext.h"
#include "FormattingState.h"
#include "InlineFormattingGeometry.h"
#include "InlineFormattingQuirks.h"
#include "InlineLineBuilder.h"
#include <wtf/IsoMalloc.h>
namespace WebCore {
namespace Layout {
class InlineDamage;
class InlineFormattingState;
class LineBox;
// This class implements the layout logic for inline formatting contexts.
// https://www.w3.org/TR/CSS22/visuren.html#inline-formatting
class InlineFormattingContext final : public FormattingContext {
WTF_MAKE_ISO_ALLOCATED(InlineFormattingContext);
public:
InlineFormattingContext(const ContainerBox& formattingContextRoot, InlineFormattingState&, const InlineDamage* = nullptr);
void layoutInFlowContent(const ConstraintsForInFlowContent&) override;
IntrinsicWidthConstraints computedIntrinsicWidthConstraints() override;
LayoutUnit usedContentHeight() const override;
const InlineFormattingState& formattingState() const { return downcast<InlineFormattingState>(FormattingContext::formattingState()); }
InlineFormattingState& formattingState() { return downcast<InlineFormattingState>(FormattingContext::formattingState()); }
const InlineFormattingGeometry& formattingGeometry() const final { return m_inlineFormattingGeometry; }
const InlineFormattingQuirks& formattingQuirks() const final { return m_inlineFormattingQuirks; }
void layoutInFlowContentForIntegration(const ConstraintsForInFlowContent&);
IntrinsicWidthConstraints computedIntrinsicWidthConstraintsForIntegration();
private:
void lineLayout(InlineItems&, LineBuilder::InlineItemRange, const ConstraintsForInFlowContent&);
void computeStaticPositionForOutOfFlowContent(const FormattingState::OutOfFlowBoxList&);
void computeIntrinsicWidthForFormattingRoot(const Box&);
InlineLayoutUnit computedIntrinsicWidthForConstraint(IntrinsicWidthMode) const;
void computeHorizontalMargin(const Box&, const HorizontalConstraints&);
void computeHeightAndMargin(const Box&, const HorizontalConstraints&);
void computeWidthAndMargin(const Box&, const HorizontalConstraints&);
void collectContentIfNeeded();
InlineRect computeGeometryForLineContent(const LineBuilder::LineContent&);
void invalidateFormattingState();
const InlineDamage* m_lineDamage { nullptr };
const InlineFormattingGeometry m_inlineFormattingGeometry;
const InlineFormattingQuirks m_inlineFormattingQuirks;
};
}
}
SPECIALIZE_TYPE_TRAITS_LAYOUT_FORMATTING_CONTEXT(InlineFormattingContext, isInlineFormattingContext())
#endif
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