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/*
* Copyright (C) 2010 Google 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.
*/
#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_DOM_DOM_TOKEN_LIST_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_DOM_DOM_TOKEN_LIST_H_
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/dom/qualified_name.h"
#include "third_party/blink/renderer/core/dom/space_split_string.h"
#include "third_party/blink/renderer/platform/bindings/script_wrappable.h"
#include "third_party/blink/renderer/platform/heap/handle.h"
#include "third_party/blink/renderer/platform/wtf/text/atomic_string.h"
#include "third_party/blink/renderer/platform/wtf/vector.h"
namespace blink {
class Element;
class ExceptionState;
class CORE_EXPORT DOMTokenList : public ScriptWrappable {
DEFINE_WRAPPERTYPEINFO();
public:
DOMTokenList(Element& element, const QualifiedName& attr)
: element_(element), attribute_name_(attr) {}
DOMTokenList(const DOMTokenList&) = delete;
DOMTokenList& operator=(const DOMTokenList&) = delete;
~DOMTokenList() override = default;
void Trace(Visitor*) const override;
unsigned length() const { return token_set_.size(); }
const AtomicString item(unsigned index) const;
bool contains(const AtomicString&) const;
void add(const Vector<String>&, ExceptionState&);
void remove(const Vector<String>&, ExceptionState&);
bool toggle(const AtomicString&, ExceptionState&);
bool toggle(const AtomicString&, bool force, ExceptionState&);
bool replace(const AtomicString& token,
const AtomicString& new_token,
ExceptionState&);
bool supports(const AtomicString&, ExceptionState&);
virtual AtomicString value() const;
virtual void setValue(const AtomicString&);
AtomicString toString() const { return value(); }
// This function should be called when the associated attribute value was
// updated.
void DidUpdateAttributeValue(const AtomicString& old_value,
const AtomicString& new_value);
const SpaceSplitString& TokenSet() const { return token_set_; }
// Add() and Remove() have DCHECK for syntax of the specified token.
void Add(const AtomicString&);
void Remove(const AtomicString&);
protected:
Element& GetElement() const { return *element_; }
virtual bool ValidateTokenValue(const AtomicString&, ExceptionState&) const;
private:
void AddTokens(const Vector<String>&);
void RemoveTokens(const Vector<String>&);
void UpdateWithTokenSet(const SpaceSplitString&);
SpaceSplitString token_set_;
const Member<Element> element_;
// Normal DOMTokenList instances is associated to an attribute name.
// So |attribute_name_| is typically an html_names::kFooAttr.
// CustomStateTokenList is associated to no attribute name.
// |attribute_name_| is |g_null_name| in that case.
const QualifiedName attribute_name_;
bool is_in_update_step_ = false;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_DOM_DOM_TOKEN_LIST_H_
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