| /* |
| * 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. |
| */ |
| |
| #include "config.h" |
| #include "InlineIteratorInlineBox.h" |
| |
| #include "LayoutIntegrationLineLayout.h" |
| #include "RenderInline.h" |
| |
| namespace WebCore { |
| namespace InlineIterator { |
| |
| InlineBox::InlineBox(PathVariant&& path) |
| : Box(WTFMove(path)) |
| { |
| } |
| |
| std::pair<bool, bool> InlineBox::hasClosedLeftAndRightEdge() const |
| { |
| // FIXME: Layout knows the answer to this question so we should consult it. |
| #if ENABLE(CSS_BOX_DECORATION_BREAK) |
| if (style().boxDecorationBreak() == BoxDecorationBreak::Clone) |
| return { true, true }; |
| #endif |
| bool isLTR = style().isLeftToRightDirection(); |
| bool isFirst = !previousInlineBox() && !renderer().isContinuation(); |
| bool isLast = !nextInlineBox() && !renderer().continuation(); |
| return { isLTR ? isFirst : isLast, isLTR ? isLast : isFirst }; |
| }; |
| |
| InlineBoxIterator InlineBox::nextInlineBox() const |
| { |
| return InlineBoxIterator(*this).traverseNextInlineBox(); |
| } |
| |
| InlineBoxIterator InlineBox::previousInlineBox() const |
| { |
| return InlineBoxIterator(*this).traversePreviousInlineBox(); |
| } |
| |
| LeafBoxIterator InlineBox::firstLeafBox() const |
| { |
| return WTF::switchOn(m_pathVariant, [](auto& path) -> LeafBoxIterator { |
| return { path.firstLeafBoxForInlineBox() }; |
| }); |
| } |
| |
| LeafBoxIterator InlineBox::lastLeafBox() const |
| { |
| return WTF::switchOn(m_pathVariant, [](auto& path) -> LeafBoxIterator { |
| return { path.lastLeafBoxForInlineBox() }; |
| }); |
| } |
| |
| LeafBoxIterator InlineBox::endLeafBox() const |
| { |
| if (auto last = lastLeafBox()) |
| return last->nextOnLine(); |
| return { }; |
| } |
| |
| InlineBoxIterator::InlineBoxIterator(Box::PathVariant&& pathVariant) |
| : BoxIterator(WTFMove(pathVariant)) |
| { |
| } |
| |
| InlineBoxIterator::InlineBoxIterator(const Box& box) |
| : BoxIterator(box) |
| { |
| } |
| |
| InlineBoxIterator& InlineBoxIterator::traverseNextInlineBox() |
| { |
| WTF::switchOn(m_box.m_pathVariant, [](auto& path) { |
| path.traverseNextInlineBox(); |
| }); |
| return *this; |
| } |
| |
| InlineBoxIterator& InlineBoxIterator::traversePreviousInlineBox() |
| { |
| WTF::switchOn(m_box.m_pathVariant, [](auto& path) { |
| path.traversePreviousInlineBox(); |
| }); |
| return *this; |
| } |
| |
| InlineBoxIterator firstInlineBoxFor(const RenderInline& renderInline) |
| { |
| #if ENABLE(LAYOUT_FORMATTING_CONTEXT) |
| if (auto* lineLayout = LayoutIntegration::LineLayout::containing(renderInline)) |
| return lineLayout->firstInlineBoxFor(renderInline); |
| #endif |
| return { BoxLegacyPath { renderInline.firstLineBox() } }; |
| } |
| |
| InlineBoxIterator firstRootInlineBoxFor(const RenderBlockFlow& block) |
| { |
| #if ENABLE(LAYOUT_FORMATTING_CONTEXT) |
| if (auto* lineLayout = block.modernLineLayout()) |
| return lineLayout->firstRootInlineBox(); |
| #endif |
| return { BoxLegacyPath { block.firstRootBox() } }; |
| } |
| |
| InlineBoxIterator inlineBoxFor(const LegacyInlineFlowBox& legacyInlineFlowBox) |
| { |
| return { BoxLegacyPath { &legacyInlineFlowBox } }; |
| } |
| |
| #if ENABLE(LAYOUT_FORMATTING_CONTEXT) |
| InlineBoxIterator inlineBoxFor(const LayoutIntegration::InlineContent& content, const InlineDisplay::Box& box) |
| { |
| return inlineBoxFor(content, content.indexForBox(box)); |
| } |
| |
| InlineBoxIterator inlineBoxFor(const LayoutIntegration::InlineContent& content, size_t boxIndex) |
| { |
| ASSERT(content.boxes[boxIndex].isInlineBox()); |
| return { BoxModernPath { content, boxIndex } }; |
| } |
| #endif |
| |
| } |
| } |