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/*
* Copyright (C) 2020 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 "RenderStyleConstants.h"
#include <wtf/Forward.h>
namespace WebCore {
class RenderBlockFlow;
class RenderFlexibleBox;
class RenderInline;
namespace LayoutIntegration {
enum class AvoidanceReason : uint64_t {
FlowIsInsideANonMultiColumnThread = 1LLU << 0,
// Unused = 1LLU << 1,
// Unused = 1LLU << 2,
ContentIsRuby = 1LLU << 3,
FlowIsPaginated = 1LLU << 4,
FlowHasTextOverflow = 1LLU << 5,
FlowHasLineClamp = 1LLU << 6,
// Unused = 1LLU << 7,
// Unused = 1LLU << 8,
FlowHasNonSupportedChild = 1LLU << 9,
FlowHasUnsupportedFloat = 1LLU << 10,
// Unused = 1LLU << 11,
// Unused = 1LLU << 12,
// Unused = 1LLU << 13,
// Unused = 1LLU << 14,
// Unused = 1LLU << 15,
FlowHasLineBoxContainProperty = 1LLU << 16,
FlowHasUnsupportedWritingMode = 1LLU << 17,
// Unused = 1LLU << 18,
// Unused = 1LLU << 19,
FlowHasLineAlignEdges = 1LLU << 20,
FlowHasLineSnap = 1LLU << 21,
// Unused = 1LLU << 22,
// Unused = 1LLU << 23,
// Unused = 1LLU << 24,
FlowHasPseudoFirstLetter = 1LLU << 25,
FlowHasTextCombine = 1LLU << 26,
// Unused = 1LLU << 27,
// Unused = 1LLU << 28,
FlowHasAfterWhiteSpaceLineBreak = 1LLU << 29,
// Unused = 1LLU << 30,
// Unused = 1LLU << 31,
// Unused = 1LLU << 32,
// Unused = 1LLU << 33,
// Unused = 1LLU << 34,
FlowTextIsCombineText = 1LLU << 35,
// Unused = 1LLU << 36,
// Unused = 1LLU << 37,
// Unused = 1LLU << 38,
FlowTextIsSVGInlineText = 1LLU << 39,
// Unused = 1LLU << 40,
FeatureIsDisabled = 1LLU << 41,
FlowDoesNotEstablishInlineFormattingContext = 1LLU << 42,
// Unused = 1LLU << 43,
FlowHasHangingPunctuation = 1LLU << 44,
// Unused = 1LLU << 45,
// Unused = 1LLU << 46,
MultiColumnFlowIsNotTopLevel = 1LLU << 47,
MultiColumnFlowHasColumnSpanner = 1LLU << 48,
MultiColumnFlowVerticalAlign = 1LLU << 49,
MultiColumnFlowIsFloating = 1LLU << 50,
// Unused = 1LLU << 51,
// Unused = 1LLU << 52,
// Unused = 1LLU << 53,
// Unused = 1LLU << 54,
ChildBoxIsFloatingOrPositioned = 1LLU << 55,
ContentIsSVG = 1LLU << 56,
// Unused = 1LLU << 57,
// Unused = 1LLU << 58,
InlineBoxNeedsLayer = 1LLU << 59,
BoxDecorationBreakClone = 1LLU << 60,
FlowIsUnsupportedListItem = 1LLU << 61,
EndOfReasons = 1LLU << 62
};
bool canUseForLineLayout(const RenderBlockFlow&);
bool canUseForLineLayoutAfterStyleChange(const RenderBlockFlow&, StyleDifference);
bool canUseForLineLayoutAfterInlineBoxStyleChange(const RenderInline&, StyleDifference);
bool canUseForFlexLayout(const RenderFlexibleBox&);
enum class IncludeReasons { First , All };
OptionSet<AvoidanceReason> canUseForLineLayoutWithReason(const RenderBlockFlow&, IncludeReasons);
}
}
#endif
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