134 lines
7.4 KiB
C++
134 lines
7.4 KiB
C++
/*
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* Copyright (C) 2021 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#if ENABLE(LAYOUT_FORMATTING_CONTEXT)
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#include "FormattingContext.h"
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namespace WebCore {
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namespace Layout {
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class ReplacedBox;
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struct ComputedHorizontalMargin;
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struct ComputedVerticalMargin;
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class ContainerBox;
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struct ContentHeightAndMargin;
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struct ContentWidthAndMargin;
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struct Edges;
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struct HorizontalGeometry;
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class LayoutState;
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struct OverriddenHorizontalValues;
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struct OverriddenVerticalValues;
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struct VerticalGeometry;
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// This class implements generic positioning and sizing.
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class FormattingGeometry {
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public:
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FormattingGeometry(const FormattingContext&);
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VerticalGeometry outOfFlowVerticalGeometry(const Box&, const HorizontalConstraints&, const VerticalConstraints&, const OverriddenVerticalValues&) const;
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HorizontalGeometry outOfFlowHorizontalGeometry(const Box&, const HorizontalConstraints&, const VerticalConstraints&, const OverriddenHorizontalValues&) const;
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ContentHeightAndMargin floatingContentHeightAndMargin(const Box&, const HorizontalConstraints&, const OverriddenVerticalValues&) const;
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ContentWidthAndMargin floatingContentWidthAndMargin(const Box&, const HorizontalConstraints&, const OverriddenHorizontalValues&) const;
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ContentHeightAndMargin inlineReplacedContentHeightAndMargin(const ReplacedBox&, const HorizontalConstraints&, std::optional<VerticalConstraints>, const OverriddenVerticalValues&) const;
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ContentWidthAndMargin inlineReplacedContentWidthAndMargin(const ReplacedBox&, const HorizontalConstraints&, std::optional<VerticalConstraints>, const OverriddenHorizontalValues&) const;
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LayoutSize inFlowPositionedPositionOffset(const Box&, const HorizontalConstraints&) const;
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ContentHeightAndMargin complicatedCases(const Box&, const HorizontalConstraints&, const OverriddenVerticalValues&) const;
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LayoutUnit shrinkToFitWidth(const Box&, LayoutUnit availableWidth) const;
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Edges computedBorder(const Box&) const;
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std::optional<Edges> computedPadding(const Box&, LayoutUnit containingBlockWidth) const;
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ComputedHorizontalMargin computedHorizontalMargin(const Box&, const HorizontalConstraints&) const;
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ComputedVerticalMargin computedVerticalMargin(const Box&, const HorizontalConstraints&) const;
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std::optional<LayoutUnit> computedValue(const Length& geometryProperty, LayoutUnit containingBlockWidth) const;
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std::optional<LayoutUnit> fixedValue(const Length& geometryProperty) const;
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std::optional<LayoutUnit> computedMinHeight(const Box&, std::optional<LayoutUnit> containingBlockHeight = std::nullopt) const;
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std::optional<LayoutUnit> computedMaxHeight(const Box&, std::optional<LayoutUnit> containingBlockHeight = std::nullopt) const;
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std::optional<LayoutUnit> computedMinWidth(const Box&, LayoutUnit containingBlockWidth) const;
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std::optional<LayoutUnit> computedMaxWidth(const Box&, LayoutUnit containingBlockWidth) const;
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IntrinsicWidthConstraints constrainByMinMaxWidth(const Box&, IntrinsicWidthConstraints) const;
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LayoutUnit contentHeightForFormattingContextRoot(const ContainerBox&) const;
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ConstraintsForOutOfFlowContent constraintsForOutOfFlowContent(const ContainerBox&) const;
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ConstraintsForInFlowContent constraintsForInFlowContent(const ContainerBox&, std::optional<FormattingContext::EscapeReason> = std::nullopt) const;
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std::optional<LayoutUnit> computedHeight(const Box&, std::optional<LayoutUnit> containingBlockHeight = std::nullopt) const;
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std::optional<LayoutUnit> computedWidth(const Box&, LayoutUnit containingBlockWidth) const;
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bool isBlockFormattingGeometry() const { return formattingContext().isBlockFormattingContext(); }
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bool isInlineFormattingGeometry() const { return formattingContext().isInlineFormattingContext(); }
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bool isFlexFormattingGeometry() const { return formattingContext().isFlexFormattingContext(); }
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bool isTableFormattingGeometry() const { return formattingContext().isTableFormattingContext(); }
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protected:
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const LayoutState& layoutState() const { return m_formattingContext.layoutState(); }
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const FormattingContext& formattingContext() const { return m_formattingContext; }
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private:
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VerticalGeometry outOfFlowReplacedVerticalGeometry(const ReplacedBox&, const HorizontalConstraints&, const VerticalConstraints&, const OverriddenVerticalValues&) const;
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HorizontalGeometry outOfFlowReplacedHorizontalGeometry(const ReplacedBox&, const HorizontalConstraints&, const VerticalConstraints&, const OverriddenHorizontalValues&) const;
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VerticalGeometry outOfFlowNonReplacedVerticalGeometry(const ContainerBox&, const HorizontalConstraints&, const VerticalConstraints&, const OverriddenVerticalValues&) const;
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HorizontalGeometry outOfFlowNonReplacedHorizontalGeometry(const ContainerBox&, const HorizontalConstraints&, const OverriddenHorizontalValues&) const;
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ContentHeightAndMargin floatingReplacedContentHeightAndMargin(const ReplacedBox&, const HorizontalConstraints&, const OverriddenVerticalValues&) const;
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ContentWidthAndMargin floatingReplacedContentWidthAndMargin(const ReplacedBox&, const HorizontalConstraints&, const OverriddenHorizontalValues&) const;
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ContentWidthAndMargin floatingNonReplacedContentWidthAndMargin(const Box&, const HorizontalConstraints&, const OverriddenHorizontalValues&) const;
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LayoutUnit staticVerticalPositionForOutOfFlowPositioned(const Box&, const VerticalConstraints&) const;
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LayoutUnit staticHorizontalPositionForOutOfFlowPositioned(const Box&, const HorizontalConstraints&) const;
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enum class HeightType { Min, Max, Normal };
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std::optional<LayoutUnit> computedHeightValue(const Box&, HeightType, std::optional<LayoutUnit> containingBlockHeight) const;
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enum class WidthType { Min, Max, Normal };
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std::optional<LayoutUnit> computedWidthValue(const Box&, WidthType, LayoutUnit containingBlockWidth) const;
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const FormattingContext& m_formattingContext;
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};
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}
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}
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#define SPECIALIZE_TYPE_TRAITS_LAYOUT_FORMATTING_GEOMETRY(ToValueTypeName, predicate) \
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SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::Layout::ToValueTypeName) \
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static bool isType(const WebCore::Layout::FormattingGeometry& formattingGeometry) { return formattingGeometry.predicate; } \
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SPECIALIZE_TYPE_TRAITS_END()
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#endif
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