| /* |
| * Copyright (C) 2004, 2005, 2006, 2007, 2008 Nikolas Zimmermann |
| * <zimmermann@kde.org> |
| * Copyright (C) 2004, 2005, 2006, 2007 Rob Buis <buis@kde.org> |
| * Copyright (C) Research In Motion Limited 2009-2010. All rights reserved. |
| * |
| * 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 "third_party/blink/renderer/core/svg/svg_marker_element.h" |
| |
| #include "third_party/blink/renderer/core/layout/svg/layout_svg_resource_marker.h" |
| #include "third_party/blink/renderer/core/svg/svg_angle_tear_off.h" |
| #include "third_party/blink/renderer/core/svg/svg_enumeration_map.h" |
| #include "third_party/blink/renderer/core/svg_names.h" |
| #include "third_party/blink/renderer/platform/heap/heap.h" |
| |
| namespace blink { |
| |
| template <> |
| const SVGEnumerationMap& GetEnumerationMap<SVGMarkerUnitsType>() { |
| static const SVGEnumerationMap::Entry enum_items[] = { |
| {kSVGMarkerUnitsUserSpaceOnUse, "userSpaceOnUse"}, |
| {kSVGMarkerUnitsStrokeWidth, "strokeWidth"}, |
| }; |
| static const SVGEnumerationMap entries(enum_items); |
| return entries; |
| } |
| |
| SVGMarkerElement::SVGMarkerElement(Document& document) |
| : SVGElement(svg_names::kMarkerTag, document), |
| SVGFitToViewBox(this), |
| ref_x_(MakeGarbageCollected<SVGAnimatedLength>( |
| this, |
| svg_names::kRefXAttr, |
| SVGLengthMode::kWidth, |
| SVGLength::Initial::kUnitlessZero)), |
| ref_y_(MakeGarbageCollected<SVGAnimatedLength>( |
| this, |
| svg_names::kRefYAttr, |
| SVGLengthMode::kHeight, |
| SVGLength::Initial::kUnitlessZero)), |
| // Spec: If the markerWidth/markerHeight attribute is not specified, the |
| // effect is as if a value of "3" were specified. |
| marker_width_(MakeGarbageCollected<SVGAnimatedLength>( |
| this, |
| svg_names::kMarkerWidthAttr, |
| SVGLengthMode::kWidth, |
| SVGLength::Initial::kNumber3)), |
| marker_height_(MakeGarbageCollected<SVGAnimatedLength>( |
| this, |
| svg_names::kMarkerHeightAttr, |
| SVGLengthMode::kHeight, |
| SVGLength::Initial::kNumber3)), |
| orient_angle_(MakeGarbageCollected<SVGAnimatedAngle>(this)), |
| marker_units_( |
| MakeGarbageCollected<SVGAnimatedEnumeration<SVGMarkerUnitsType>>( |
| this, |
| svg_names::kMarkerUnitsAttr, |
| kSVGMarkerUnitsStrokeWidth)) { |
| AddToPropertyMap(ref_x_); |
| AddToPropertyMap(ref_y_); |
| AddToPropertyMap(marker_width_); |
| AddToPropertyMap(marker_height_); |
| AddToPropertyMap(orient_angle_); |
| AddToPropertyMap(marker_units_); |
| } |
| |
| void SVGMarkerElement::Trace(blink::Visitor* visitor) { |
| visitor->Trace(ref_x_); |
| visitor->Trace(ref_y_); |
| visitor->Trace(marker_width_); |
| visitor->Trace(marker_height_); |
| visitor->Trace(orient_angle_); |
| visitor->Trace(marker_units_); |
| SVGElement::Trace(visitor); |
| SVGFitToViewBox::Trace(visitor); |
| } |
| |
| DEFINE_NODE_FACTORY(SVGMarkerElement) |
| |
| AffineTransform SVGMarkerElement::ViewBoxToViewTransform( |
| float view_width, |
| float view_height) const { |
| return SVGFitToViewBox::ViewBoxToViewTransform( |
| viewBox()->CurrentValue()->Value(), preserveAspectRatio()->CurrentValue(), |
| view_width, view_height); |
| } |
| |
| void SVGMarkerElement::SvgAttributeChanged(const QualifiedName& attr_name) { |
| bool viewbox_attribute_changed = SVGFitToViewBox::IsKnownAttribute(attr_name); |
| bool length_attribute_changed = attr_name == svg_names::kRefXAttr || |
| attr_name == svg_names::kRefYAttr || |
| attr_name == svg_names::kMarkerWidthAttr || |
| attr_name == svg_names::kMarkerHeightAttr; |
| if (length_attribute_changed) |
| UpdateRelativeLengthsInformation(); |
| |
| if (viewbox_attribute_changed || length_attribute_changed || |
| attr_name == svg_names::kMarkerUnitsAttr || |
| attr_name == svg_names::kOrientAttr) { |
| SVGElement::InvalidationGuard invalidation_guard(this); |
| auto* resource_container = ToLayoutSVGResourceContainer(GetLayoutObject()); |
| if (resource_container) { |
| // The marker transform depends on both viewbox attributes, and the marker |
| // size attributes (width, height). |
| if (viewbox_attribute_changed || length_attribute_changed) |
| resource_container->SetNeedsTransformUpdate(); |
| resource_container->InvalidateCacheAndMarkForLayout(); |
| } |
| |
| return; |
| } |
| |
| SVGElement::SvgAttributeChanged(attr_name); |
| } |
| |
| void SVGMarkerElement::ChildrenChanged(const ChildrenChange& change) { |
| SVGElement::ChildrenChanged(change); |
| |
| if (change.by_parser) |
| return; |
| |
| if (LayoutObject* object = GetLayoutObject()) { |
| object->SetNeedsLayoutAndFullPaintInvalidation( |
| layout_invalidation_reason::kChildChanged); |
| } |
| } |
| |
| void SVGMarkerElement::setOrientToAuto() { |
| setAttribute(svg_names::kOrientAttr, "auto"); |
| } |
| |
| void SVGMarkerElement::setOrientToAngle(SVGAngleTearOff* angle) { |
| DCHECK(angle); |
| SVGAngle* target = angle->Target(); |
| setAttribute(svg_names::kOrientAttr, AtomicString(target->ValueAsString())); |
| } |
| |
| LayoutObject* SVGMarkerElement::CreateLayoutObject(const ComputedStyle&, |
| LegacyLayout) { |
| return new LayoutSVGResourceMarker(this); |
| } |
| |
| bool SVGMarkerElement::SelfHasRelativeLengths() const { |
| return ref_x_->CurrentValue()->IsRelative() || |
| ref_y_->CurrentValue()->IsRelative() || |
| marker_width_->CurrentValue()->IsRelative() || |
| marker_height_->CurrentValue()->IsRelative(); |
| } |
| |
| bool SVGMarkerElement::LayoutObjectIsNeeded(const ComputedStyle&) const { |
| return IsValid() && HasSVGParent(); |
| } |
| |
| } // namespace blink |