| /* |
| * 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 |
| * 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" |
| |
| namespace WebCore { |
| namespace Layout { |
| |
| class ReplacedBox; |
| struct ComputedHorizontalMargin; |
| struct ComputedVerticalMargin; |
| class ContainerBox; |
| struct ContentHeightAndMargin; |
| struct ContentWidthAndMargin; |
| struct Edges; |
| struct HorizontalGeometry; |
| class LayoutState; |
| struct OverriddenHorizontalValues; |
| struct OverriddenVerticalValues; |
| struct VerticalGeometry; |
| |
| // This class implements generic positioning and sizing. |
| class FormattingGeometry { |
| public: |
| FormattingGeometry(const FormattingContext&); |
| |
| VerticalGeometry outOfFlowVerticalGeometry(const Box&, const HorizontalConstraints&, const VerticalConstraints&, const OverriddenVerticalValues&) const; |
| HorizontalGeometry outOfFlowHorizontalGeometry(const Box&, const HorizontalConstraints&, const VerticalConstraints&, const OverriddenHorizontalValues&) const; |
| |
| ContentHeightAndMargin floatingContentHeightAndMargin(const Box&, const HorizontalConstraints&, const OverriddenVerticalValues&) const; |
| ContentWidthAndMargin floatingContentWidthAndMargin(const Box&, const HorizontalConstraints&, const OverriddenHorizontalValues&) const; |
| |
| ContentHeightAndMargin inlineReplacedContentHeightAndMargin(const ReplacedBox&, const HorizontalConstraints&, std::optional<VerticalConstraints>, const OverriddenVerticalValues&) const; |
| ContentWidthAndMargin inlineReplacedContentWidthAndMargin(const ReplacedBox&, const HorizontalConstraints&, std::optional<VerticalConstraints>, const OverriddenHorizontalValues&) const; |
| |
| LayoutSize inFlowPositionedPositionOffset(const Box&, const HorizontalConstraints&) const; |
| |
| ContentHeightAndMargin complicatedCases(const Box&, const HorizontalConstraints&, const OverriddenVerticalValues&) const; |
| LayoutUnit shrinkToFitWidth(const Box&, LayoutUnit availableWidth) const; |
| |
| Edges computedBorder(const Box&) const; |
| std::optional<Edges> computedPadding(const Box&, LayoutUnit containingBlockWidth) const; |
| |
| ComputedHorizontalMargin computedHorizontalMargin(const Box&, const HorizontalConstraints&) const; |
| ComputedVerticalMargin computedVerticalMargin(const Box&, const HorizontalConstraints&) const; |
| |
| std::optional<LayoutUnit> computedValue(const Length& geometryProperty, LayoutUnit containingBlockWidth) const; |
| std::optional<LayoutUnit> fixedValue(const Length& geometryProperty) const; |
| |
| std::optional<LayoutUnit> computedMinHeight(const Box&, std::optional<LayoutUnit> containingBlockHeight = std::nullopt) const; |
| std::optional<LayoutUnit> computedMaxHeight(const Box&, std::optional<LayoutUnit> containingBlockHeight = std::nullopt) const; |
| |
| std::optional<LayoutUnit> computedMinWidth(const Box&, LayoutUnit containingBlockWidth) const; |
| std::optional<LayoutUnit> computedMaxWidth(const Box&, LayoutUnit containingBlockWidth) const; |
| |
| IntrinsicWidthConstraints constrainByMinMaxWidth(const Box&, IntrinsicWidthConstraints) const; |
| |
| LayoutUnit contentHeightForFormattingContextRoot(const ContainerBox&) const; |
| |
| ConstraintsForOutOfFlowContent constraintsForOutOfFlowContent(const ContainerBox&) const; |
| ConstraintsForInFlowContent constraintsForInFlowContent(const ContainerBox&, std::optional<FormattingContext::EscapeReason> = std::nullopt) const; |
| |
| std::optional<LayoutUnit> computedHeight(const Box&, std::optional<LayoutUnit> containingBlockHeight = std::nullopt) const; |
| std::optional<LayoutUnit> computedWidth(const Box&, LayoutUnit containingBlockWidth) const; |
| |
| bool isBlockFormattingGeometry() const { return formattingContext().isBlockFormattingContext(); } |
| bool isInlineFormattingGeometry() const { return formattingContext().isInlineFormattingContext(); } |
| bool isFlexFormattingGeometry() const { return formattingContext().isFlexFormattingContext(); } |
| bool isTableFormattingGeometry() const { return formattingContext().isTableFormattingContext(); } |
| |
| protected: |
| const LayoutState& layoutState() const { return m_formattingContext.layoutState(); } |
| const FormattingContext& formattingContext() const { return m_formattingContext; } |
| |
| private: |
| VerticalGeometry outOfFlowReplacedVerticalGeometry(const ReplacedBox&, const HorizontalConstraints&, const VerticalConstraints&, const OverriddenVerticalValues&) const; |
| HorizontalGeometry outOfFlowReplacedHorizontalGeometry(const ReplacedBox&, const HorizontalConstraints&, const VerticalConstraints&, const OverriddenHorizontalValues&) const; |
| |
| VerticalGeometry outOfFlowNonReplacedVerticalGeometry(const ContainerBox&, const HorizontalConstraints&, const VerticalConstraints&, const OverriddenVerticalValues&) const; |
| HorizontalGeometry outOfFlowNonReplacedHorizontalGeometry(const ContainerBox&, const HorizontalConstraints&, const OverriddenHorizontalValues&) const; |
| |
| ContentHeightAndMargin floatingReplacedContentHeightAndMargin(const ReplacedBox&, const HorizontalConstraints&, const OverriddenVerticalValues&) const; |
| ContentWidthAndMargin floatingReplacedContentWidthAndMargin(const ReplacedBox&, const HorizontalConstraints&, const OverriddenHorizontalValues&) const; |
| |
| ContentWidthAndMargin floatingNonReplacedContentWidthAndMargin(const Box&, const HorizontalConstraints&, const OverriddenHorizontalValues&) const; |
| |
| LayoutUnit staticVerticalPositionForOutOfFlowPositioned(const Box&, const VerticalConstraints&) const; |
| LayoutUnit staticHorizontalPositionForOutOfFlowPositioned(const Box&, const HorizontalConstraints&) const; |
| |
| enum class HeightType { Min, Max, Normal }; |
| std::optional<LayoutUnit> computedHeightValue(const Box&, HeightType, std::optional<LayoutUnit> containingBlockHeight) const; |
| |
| enum class WidthType { Min, Max, Normal }; |
| std::optional<LayoutUnit> computedWidthValue(const Box&, WidthType, LayoutUnit containingBlockWidth) const; |
| |
| const FormattingContext& m_formattingContext; |
| }; |
| |
| } |
| } |
| |
| #define SPECIALIZE_TYPE_TRAITS_LAYOUT_FORMATTING_GEOMETRY(ToValueTypeName, predicate) \ |
| SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::Layout::ToValueTypeName) \ |
| static bool isType(const WebCore::Layout::FormattingGeometry& formattingGeometry) { return formattingGeometry.predicate; } \ |
| SPECIALIZE_TYPE_TRAITS_END() |
| |
| #endif |