| /* |
| * Copyright (C) 2009 Alex Milowski (alex@milowski.com). 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 THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT |
| * OWNER OR 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" |
| |
| #if ENABLE(MATHML) |
| |
| #include "RenderMathMLUnderOver.h" |
| |
| #include "MathMLNames.h" |
| |
| namespace WebCore { |
| |
| using namespace MathMLNames; |
| |
| RenderMathMLUnderOver::RenderMathMLUnderOver(Element& element, PassRef<RenderStyle> style) |
| : RenderMathMLBlock(element, std::move(style)) |
| { |
| // Determine what kind of under/over expression we have by element name |
| if (element.hasLocalName(MathMLNames::munderTag)) |
| m_kind = Under; |
| else if (element.hasLocalName(MathMLNames::moverTag)) |
| m_kind = Over; |
| else { |
| ASSERT(element.hasLocalName(MathMLNames::munderoverTag)); |
| m_kind = UnderOver; |
| } |
| } |
| |
| RenderMathMLOperator* RenderMathMLUnderOver::unembellishedOperator() |
| { |
| RenderObject* base = firstChild(); |
| if (!base || !base->isRenderMathMLBlock()) |
| return 0; |
| return toRenderMathMLBlock(base)->unembellishedOperator(); |
| } |
| |
| int RenderMathMLUnderOver::firstLineBaseline() const |
| { |
| RenderBox* base = firstChildBox(); |
| if (!base) |
| return -1; |
| LayoutUnit baseline = base->firstLineBaseline(); |
| if (baseline != -1) |
| baseline += base->logicalTop(); |
| return baseline; |
| } |
| |
| } |
| |
| #endif // ENABLE(MATHML) |