129 lines
4.4 KiB
C++
129 lines
4.4 KiB
C++
/*
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* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
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* (C) 1999 Antti Koivisto (koivisto@kde.org)
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* (C) 2000 Dirk Mueller (mueller@kde.org)
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* Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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*/
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#pragma once
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#include "FormNamedItem.h"
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#include "Node.h"
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#include <wtf/WeakPtr.h>
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#include <wtf/text/WTFString.h>
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namespace WebCore {
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class ContainerNode;
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class DOMFormData;
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class Document;
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class FormAttributeTargetObserver;
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class HTMLElement;
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class HTMLFormElement;
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class ValidityState;
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class FormAssociatedElement : public FormNamedItem {
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WTF_MAKE_NONCOPYABLE(FormAssociatedElement);
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WTF_MAKE_FAST_ALLOCATED;
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public:
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virtual ~FormAssociatedElement();
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void ref() { refFormAssociatedElement(); }
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void deref() { derefFormAssociatedElement(); }
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static HTMLFormElement* findAssociatedForm(const HTMLElement*, HTMLFormElement*);
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WEBCORE_EXPORT HTMLFormElement* form() const;
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ValidityState* validity();
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virtual bool isFormControlElement() const = 0;
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virtual bool isFormControlElementWithState() const;
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virtual bool isEnumeratable() const = 0;
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// Returns the 'name' attribute value. If this element has no name
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// attribute, it returns an empty string instead of null string.
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// Note that the 'name' IDL attribute doesn't use this function.
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virtual const AtomString& name() const;
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// Override in derived classes to get the encoded name=value pair for submitting.
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// Return true for a successful control (see HTML4-17.13.2).
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virtual bool appendFormData(DOMFormData&, bool) { return false; }
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void formWillBeDestroyed();
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void resetFormOwner();
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void formOwnerRemovedFromTree(const Node&);
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// ValidityState attribute implementations
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bool badInput() const { return hasBadInput(); }
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bool customError() const;
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// Implementations of patternMismatch, rangeOverflow, rangerUnderflow, stepMismatch, tooShort, tooLong and valueMissing must call willValidate.
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virtual bool hasBadInput() const;
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virtual bool patternMismatch() const;
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virtual bool rangeOverflow() const;
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virtual bool rangeUnderflow() const;
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virtual bool stepMismatch() const;
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virtual bool tooShort() const;
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virtual bool tooLong() const;
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virtual bool typeMismatch() const;
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virtual bool valueMissing() const;
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virtual String validationMessage() const;
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virtual bool isValid() const;
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virtual void setCustomValidity(const String&);
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void formAttributeTargetChanged();
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protected:
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FormAssociatedElement(HTMLFormElement*);
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void insertedIntoAncestor(Node::InsertionType, ContainerNode&);
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void removedFromAncestor(Node::RemovalType, ContainerNode&);
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void didMoveToNewDocument(Document& oldDocument);
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void clearForm() { setForm(nullptr); }
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void setForm(HTMLFormElement*);
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void formAttributeChanged();
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// If you add an override of willChangeForm() or didChangeForm() to a class
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// derived from this one, you will need to add a call to setForm(0) to the
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// destructor of that class.
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virtual void willChangeForm();
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virtual void didChangeForm();
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String customValidationMessage() const;
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private:
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// "willValidate" means "is a candidate for constraint validation".
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virtual bool willValidate() const = 0;
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virtual void refFormAssociatedElement() = 0;
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virtual void derefFormAssociatedElement() = 0;
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void resetFormAttributeTargetObserver();
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bool isFormAssociatedElement() const final { return true; }
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std::unique_ptr<FormAttributeTargetObserver> m_formAttributeTargetObserver;
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WeakPtr<HTMLFormElement> m_form;
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WeakPtr<HTMLFormElement> m_formSetByParser;
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String m_customValidationMessage;
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};
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} // namespace
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