| /* |
| * Copyright (C) 2004, 2005, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org> |
| * Copyright (C) 2004, 2005, 2006, 2007 Rob Buis <buis@kde.org> |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| #include "core/svg/SVGStopElement.h" |
| |
| #include "core/layout/svg/LayoutSVGGradientStop.h" |
| |
| namespace blink { |
| |
| inline SVGStopElement::SVGStopElement(Document& document) |
| : SVGElement(SVGNames::stopTag, document), |
| m_offset(SVGAnimatedNumber::create(this, |
| SVGNames::offsetAttr, |
| SVGNumberAcceptPercentage::create())) { |
| addToPropertyMap(m_offset); |
| } |
| |
| DEFINE_TRACE(SVGStopElement) { |
| visitor->trace(m_offset); |
| SVGElement::trace(visitor); |
| } |
| |
| DEFINE_NODE_FACTORY(SVGStopElement) |
| |
| void SVGStopElement::svgAttributeChanged(const QualifiedName& attrName) { |
| if (attrName == SVGNames::offsetAttr) { |
| SVGElement::InvalidationGuard invalidationGuard(this); |
| |
| if (layoutObject()) |
| markForLayoutAndParentResourceInvalidation(layoutObject()); |
| return; |
| } |
| |
| SVGElement::svgAttributeChanged(attrName); |
| } |
| |
| LayoutObject* SVGStopElement::createLayoutObject(const ComputedStyle&) { |
| return new LayoutSVGGradientStop(this); |
| } |
| |
| bool SVGStopElement::layoutObjectIsNeeded(const ComputedStyle&) { |
| return true; |
| } |
| |
| Color SVGStopElement::stopColorIncludingOpacity() const { |
| const ComputedStyle* style = |
| layoutObject() ? layoutObject()->style() : nullptr; |
| // FIXME: This check for null style exists to address Bug WK 90814, a rare |
| // crash condition in which the layoutObject or style is null. This entire |
| // class is scheduled for removal (Bug WK 86941) and we will tolerate this |
| // null check until then. |
| if (!style) |
| return Color(Color::transparent); // Transparent black. |
| |
| const SVGComputedStyle& svgStyle = style->svgStyle(); |
| return svgStyle.stopColor().combineWithAlpha(svgStyle.stopOpacity()); |
| } |
| |
| } // namespace blink |