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/*
* Copyright (C) 2019 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
#include "InlineDisplayContent.h"
#include <wtf/HashMap.h>
#include <wtf/IteratorRange.h>
#include <wtf/Vector.h>
#include <wtf/WeakPtr.h>
namespace WebCore {
class RenderBlockFlow;
class RenderObject;
namespace Layout {
class Box;
}
namespace InlineDisplay {
struct Box;
class Line;
}
namespace LayoutIntegration {
class LineLayout;
struct InlineContent : public CanMakeWeakPtr<InlineContent> {
WTF_MAKE_STRUCT_FAST_ALLOCATED;
InlineContent(const LineLayout&);
~InlineContent();
InlineDisplay::Content& displayContent() { return m_displayContent; }
const InlineDisplay::Content& displayContent() const { return m_displayContent; }
float clearGapBeforeFirstLine { 0 };
float clearGapAfterLastLine { 0 };
float firstLinePaginationOffset { 0 };
bool isPaginated { false };
bool hasMultilinePaintOverlap { false };
bool hasContent() const;
bool hasVisualOverflow() const { return m_hasVisualOverflow; }
void setHasVisualOverflow() { m_hasVisualOverflow = true; }
const InlineDisplay::Line& lineForBox(const InlineDisplay::Box& box) const { return displayContent().lines[box.lineIndex()]; }
IteratorRange<const InlineDisplay::Box*> boxesForRect(const LayoutRect&) const;
void shrinkToFit();
const LineLayout& lineLayout() const { return *m_lineLayout; }
const RenderObject& rendererForLayoutBox(const Layout::Box&) const;
const RenderBlockFlow& formattingContextRoot() const;
size_t indexForBox(const InlineDisplay::Box&) const;
const InlineDisplay::Box* firstBoxForLayoutBox(const Layout::Box&) const;
template<typename Function> void traverseNonRootInlineBoxes(const Layout::Box&, Function&&);
std::optional<size_t> firstBoxIndexForLayoutBox(const Layout::Box&) const;
const Vector<size_t>& nonRootInlineBoxIndexesForLayoutBox(const Layout::Box&) const;
void releaseCaches();
private:
CheckedPtr<const LineLayout> m_lineLayout;
InlineDisplay::Content m_displayContent;
using FirstBoxIndexCache = HashMap<CheckedRef<const Layout::Box>, size_t>;
mutable std::unique_ptr<FirstBoxIndexCache> m_firstBoxIndexCache;
using InlineBoxIndexCache = HashMap<CheckedRef<const Layout::Box>, Vector<size_t>>;
mutable std::unique_ptr<InlineBoxIndexCache> m_inlineBoxIndexCache;
bool m_hasVisualOverflow { false };
};
template<typename Function> void InlineContent::traverseNonRootInlineBoxes(const Layout::Box& layoutBox, Function&& function)
{
for (auto index : nonRootInlineBoxIndexesForLayoutBox(layoutBox))
function(displayContent().boxes[index]);
}
}
}
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