| /* |
| * 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; |
| LayoutUnit usedContentHeight() const override; |
| |
| const InlineFormattingState& formattingState() const { return downcast<InlineFormattingState>(FormattingContext::formattingState()); } |
| InlineFormattingState& formattingState() { return downcast<InlineFormattingState>(FormattingContext::formattingState()); } |
| |
| void lineLayoutForIntergration(const ConstraintsForInFlowContent&); |
| IntrinsicWidthConstraints computedIntrinsicWidthConstraintsForIntegration(); |
| |
| const InlineFormattingGeometry& formattingGeometry() const final { return m_inlineFormattingGeometry; } |
| const InlineFormattingQuirks& formattingQuirks() const final { return m_inlineFormattingQuirks; } |
| |
| IntrinsicWidthConstraints computedIntrinsicWidthConstraints() override; |
| |
| 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 |