| // Copyright 2016 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef THIRD_PARTY_BLINK_RENDERER_CORE_SVG_SVG_ANIMATED_HREF_H_ |
| #define THIRD_PARTY_BLINK_RENDERER_CORE_SVG_SVG_ANIMATED_HREF_H_ |
| |
| #include "third_party/blink/renderer/core/svg/svg_animated_string.h" |
| |
| namespace blink { |
| |
| // This is an "access wrapper" for the 'href' attribute. The object |
| // itself holds the value for 'href' in the null/default NS and wraps |
| // one for 'href' in the XLink NS. Both objects are added to an |
| // SVGElement's property map and hence any updates/synchronization/etc |
| // via the "attribute DOM" (setAttribute and friends) will operate on |
| // the independent objects, while users of an 'href' value will be |
| // using this interface (which essentially just selects either itself |
| // or the wrapped object and forwards the operation to it.) |
| class SVGAnimatedHref final : public SVGAnimatedString { |
| public: |
| static SVGAnimatedHref* Create(SVGElement* context_element); |
| |
| explicit SVGAnimatedHref(SVGElement* context_element); |
| |
| SVGString* CurrentValue(); |
| const SVGString* CurrentValue() const; |
| |
| String baseVal() override; |
| void setBaseVal(const String&, ExceptionState&) override; |
| String animVal() override; |
| |
| bool IsSpecified() const { |
| return SVGAnimatedString::IsSpecified() || xlink_href_->IsSpecified(); |
| } |
| |
| static bool IsKnownAttribute(const QualifiedName&); |
| void AddToPropertyMap(SVGElement*); |
| |
| void Trace(blink::Visitor*) override; |
| |
| private: |
| SVGAnimatedString* BackingString(); |
| const SVGAnimatedString* BackingString() const; |
| bool UseXLink() const; |
| |
| Member<SVGAnimatedString> xlink_href_; |
| }; |
| |
| } // namespace blink |
| |
| #endif // THIRD_PARTY_BLINK_RENDERER_CORE_SVG_SVG_ANIMATED_HREF_H_ |