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/*
* Copyright (C) 2024 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.
*/
#include "config.h"
#include "LayoutIntegrationUtils.h"
#include "LayoutBox.h"
#include "LayoutIntegrationFormattingContextLayout.h"
#include "LayoutState.h"
#include "RenderObject.h"
namespace WebCore {
namespace Layout {
IntegrationUtils::IntegrationUtils(const LayoutState& globalLayoutState)
: m_globalLayoutState(globalLayoutState)
{
}
void IntegrationUtils::layoutWithFormattingContextForBox(const ElementBox& box, std::optional<LayoutUnit> widthConstraint, std::optional<LayoutUnit> heightConstraint) const
{
m_globalLayoutState->layoutWithFormattingContextForBox(box, widthConstraint, heightConstraint);
}
LayoutUnit IntegrationUtils::maxContentWidth(const ElementBox& box) const
{
ASSERT(box.isFlexItem());
return m_globalLayoutState->logicalWidthWithFormattingContextForBox(box, LayoutIntegration::LogicalWidthType::MaxContent);
}
LayoutUnit IntegrationUtils::minContentWidth(const ElementBox& box) const
{
ASSERT(box.isFlexItem());
return m_globalLayoutState->logicalWidthWithFormattingContextForBox(box, LayoutIntegration::LogicalWidthType::MinContent);
}
LayoutUnit IntegrationUtils::minContentHeight(const ElementBox& box) const
{
ASSERT(box.isFlexItem());
return m_globalLayoutState->logicalHeightWithFormattingContextForBox(box, LayoutIntegration::LogicalHeightType::MinContent);
}
LayoutUnit IntegrationUtils::preferredMinWidth(const ElementBox& box) const
{
ASSERT(box.isGridItem());
return m_globalLayoutState->logicalWidthWithFormattingContextForBox(box, LayoutIntegration::LogicalWidthType::PreferredMinimum);
}
LayoutUnit IntegrationUtils::preferredMaxWidth(const ElementBox& box) const
{
ASSERT(box.isGridItem());
return m_globalLayoutState->logicalWidthWithFormattingContextForBox(box, LayoutIntegration::LogicalWidthType::PreferredMaximum);
}
void IntegrationUtils::layoutWithFormattingContextForBlockInInline(const ElementBox& block, LayoutPoint blockLineLogicalTopLeft, const InlineLayoutState& inlineLayoutState) const
{
ASSERT(block.isBlockLevelBox());
m_globalLayoutState->layoutWithFormattingContextForBlockInInline(block, blockLineLogicalTopLeft, inlineLayoutState);
}
Layout::BlockLayoutState::MarginState IntegrationUtils::toMarginState(const RenderBlockFlow::MarginInfo& marginInfo, LayoutUnit contentOffsetAfterSelfCollapsingBlock)
{
return { marginInfo.canCollapseWithChildren(), marginInfo.canCollapseMarginBeforeWithChildren(), marginInfo.canCollapseMarginAfterWithChildren(), marginInfo.quirkContainer(), marginInfo.atBeforeSideOfBlock(), marginInfo.atAfterSideOfBlock(), marginInfo.hasMarginBeforeQuirk(), marginInfo.hasMarginAfterQuirk(), marginInfo.determinedMarginBeforeQuirk(), marginInfo.positiveMargin(), marginInfo.negativeMargin(), contentOffsetAfterSelfCollapsingBlock };
}
RenderBlockFlow::MarginInfo IntegrationUtils::toMarginInfo(const Layout::BlockLayoutState::MarginState& marginState)
{
return { marginState.canCollapseWithChildren, marginState.canCollapseMarginBeforeWithChildren, marginState.canCollapseMarginAfterWithChildren, marginState.quirkContainer, marginState.atBeforeSideOfBlock, marginState.atAfterSideOfBlock, marginState.hasMarginBeforeQuirk, marginState.hasMarginAfterQuirk, marginState.determinedMarginBeforeQuirk, marginState.positiveMargin, marginState.negativeMargin };
}
std::pair<LayoutRect, LayoutRect> IntegrationUtils::toMarginAndBorderBoxVisualRect(const BoxGeometry& logicalGeometry, const LayoutSize& containerSize, WritingMode writingMode)
{
// In certain writing modes, IFC gets the border box position wrong;
// but the margin box is correct, so use it to derive the border box.
auto marginBoxLogicalRect = BoxGeometry::marginBoxRect(logicalGeometry);
auto containerLogicalWidth = writingMode.isHorizontal() ? containerSize.width() : containerSize.height();
auto marginBoxLogicalX = writingMode.isInlineFlipped() ? containerLogicalWidth - marginBoxLogicalRect.right() : marginBoxLogicalRect.left();
auto marginBoxVisualRect = writingMode.isHorizontal()
? LayoutRect { marginBoxLogicalX, marginBoxLogicalRect.top(), marginBoxLogicalRect.width(), marginBoxLogicalRect.height() }
: LayoutRect { marginBoxLogicalRect.top(), marginBoxLogicalX, marginBoxLogicalRect.height(), marginBoxLogicalRect.width() };
auto marginLeft = LayoutUnit { };
auto marginTop = LayoutUnit { };
auto marginWidth = LayoutUnit { };
auto marginHeight = LayoutUnit { };
if (writingMode.isHorizontal()) {
marginLeft = writingMode.isInlineLeftToRight() ? logicalGeometry.marginStart() : logicalGeometry.marginEnd();
marginTop = writingMode.isBlockTopToBottom() ? logicalGeometry.marginBefore() : logicalGeometry.marginAfter();
marginWidth = logicalGeometry.marginStart() + logicalGeometry.marginEnd();
marginHeight = logicalGeometry.marginBefore() + logicalGeometry.marginAfter();
} else {
// Invert verticalLogicalMargin() and convert to unflipped coords.
marginLeft = writingMode.isLineInverted() ? logicalGeometry.marginAfter() : logicalGeometry.marginBefore();
marginTop = writingMode.isInlineTopToBottom() ? logicalGeometry.marginStart() : logicalGeometry.marginEnd();
marginWidth = logicalGeometry.marginBefore() + logicalGeometry.marginAfter();
marginHeight = logicalGeometry.marginStart() + logicalGeometry.marginEnd();
}
auto borderBoxVisualRect = marginBoxVisualRect;
borderBoxVisualRect.expand(-marginWidth, -marginHeight);
borderBoxVisualRect.move(marginLeft, marginTop);
return { marginBoxVisualRect, borderBoxVisualRect };
}
}
}
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