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/*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* (C) 1999 Antti Koivisto (koivisto@kde.org)
* (C) 2000 Dirk Mueller (mueller@kde.org)
* Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. 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.
*
*/
#ifndef HTMLFormControlElement_h
#define HTMLFormControlElement_h
#include "core/html/FormAssociatedElement.h"
#include "core/html/LabelableElement.h"
namespace blink {
class FormDataList;
class HTMLFormElement;
class ValidationMessageClient;
enum CheckValidityEventBehavior { CheckValidityDispatchNoEvent, CheckValidityDispatchInvalidEvent };
enum ValidityRecalcReason { ElementAddition, ElementRemoval, ElementModification };
// HTMLFormControlElement is the default implementation of FormAssociatedElement,
// and form-associated element implementations should use HTMLFormControlElement
// unless there is a special reason.
class HTMLFormControlElement : public LabelableElement, public FormAssociatedElement {
WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(HTMLFormControlElement);
public:
virtual ~HTMLFormControlElement();
virtual void trace(Visitor*) override;
String formEnctype() const;
void setFormEnctype(const AtomicString&);
String formMethod() const;
void setFormMethod(const AtomicString&);
bool formNoValidate() const;
void ancestorDisabledStateWasChanged();
void reset();
bool wasChangedSinceLastFormControlChangeEvent() const { return m_wasChangedSinceLastFormControlChangeEvent; }
void setChangedSinceLastFormControlChangeEvent(bool);
virtual void dispatchFormControlChangeEvent();
void dispatchChangeEvent();
void dispatchFormControlInputEvent();
virtual HTMLFormElement* formOwner() const override final;
virtual bool isDisabledFormControl() const override;
virtual bool isEnumeratable() const override { return false; }
bool isRequired() const;
const AtomicString& type() const { return formControlType(); }
virtual const AtomicString& formControlType() const = 0;
virtual bool canTriggerImplicitSubmission() const { return false; }
// Override in derived classes to get the encoded name=value pair for submitting.
// Return true for a successful control (see HTML4-17.13.2).
virtual bool appendFormData(FormDataList&, bool) override { return false; }
virtual String resultForDialogSubmit();
virtual bool canBeSuccessfulSubmitButton() const { return false; }
bool isSuccessfulSubmitButton() const;
virtual bool isActivatedSubmit() const { return false; }
virtual void setActivatedSubmit(bool) { }
virtual bool willValidate() const override;
void updateVisibleValidationMessage();
void hideVisibleValidationMessage();
bool checkValidity(WillBeHeapVector<RefPtrWillBeMember<HTMLFormControlElement>>* unhandledInvalidControls = 0, CheckValidityEventBehavior = CheckValidityDispatchInvalidEvent);
bool reportValidity();
// This must be called only after the caller check the element is focusable.
void showValidationMessage();
// This must be called when a validation constraint or control value is changed.
void setNeedsValidityCheck();
virtual void setCustomValidity(const String&) override final;
void findCustomValidationMessageTextDirection(const String& message, TextDirection &messageDir, String& subMessage, TextDirection& subMessageDir);
bool isReadOnly() const { return m_isReadOnly; }
bool isDisabledOrReadOnly() const { return isDisabledFormControl() || m_isReadOnly; }
bool isAutofocusable() const;
bool isAutofilled() const { return m_isAutofilled; }
void setAutofilled(bool = true);
static HTMLFormControlElement* enclosingFormControlElement(Node*);
String nameForAutofill() const;
virtual void setFocus(bool flag) override;
#if !ENABLE(OILPAN)
using Node::ref;
using Node::deref;
#endif
protected:
HTMLFormControlElement(const QualifiedName& tagName, Document&, HTMLFormElement*);
virtual void parseAttribute(const QualifiedName&, const AtomicString&) override;
virtual void requiredAttributeChanged();
virtual void disabledAttributeChanged();
virtual void attach(const AttachContext& = AttachContext()) override;
virtual InsertionNotificationRequest insertedInto(ContainerNode*) override;
virtual void removedFrom(ContainerNode*) override;
virtual void willChangeForm() override;
virtual void didChangeForm() override;
virtual void didMoveToNewDocument(Document& oldDocument) override;
virtual bool supportsFocus() const override;
virtual bool isKeyboardFocusable() const override;
virtual bool shouldShowFocusRingOnMouseFocus() const;
virtual bool shouldHaveFocusAppearance() const override final;
virtual void dispatchBlurEvent(Element* newFocusedElement) override;
virtual void dispatchFocusEvent(Element* oldFocusedElement, FocusType) override;
virtual void willCallDefaultEventHandler(const Event&) override final;
virtual void didRecalcStyle(StyleRecalcChange) override final;
// This must be called any time the result of willValidate() has changed.
void setNeedsWillValidateCheck();
virtual bool recalcWillValidate() const;
virtual void resetImpl() { }
virtual bool supportsAutofocus() const;
private:
#if !ENABLE(OILPAN)
virtual void refFormAssociatedElement() override final { ref(); }
virtual void derefFormAssociatedElement() override final { deref(); }
#endif
virtual bool isFormControlElement() const override final { return true; }
virtual bool alwaysCreateUserAgentShadowRoot() const override { return true; }
virtual short tabIndex() const override final;
virtual bool isDefaultButtonForForm() const override final;
virtual bool isValidElement() override;
virtual bool matchesValidityPseudoClasses() const override;
void updateAncestorDisabledState() const;
bool isValidationMessageVisible() const;
ValidationMessageClient* validationMessageClient() const;
// Requests validity recalc for the form owner, if one exists.
// In case of removal, isValid specifies element validity upon removal.
// In case of addition and modification, it specifies new validity.
void formOwnerSetNeedsValidityCheck(ValidityRecalcReason, bool isValid);
// Requests validity recalc for all ancestor fieldsets, if exist.
void fieldSetAncestorsSetNeedsValidityCheck(Node*);
bool m_disabled : 1;
bool m_isAutofilled : 1;
bool m_isReadOnly : 1;
bool m_isRequired : 1;
bool m_hasValidationMessage : 1;
enum AncestorDisabledState { AncestorDisabledStateUnknown, AncestorDisabledStateEnabled, AncestorDisabledStateDisabled };
mutable AncestorDisabledState m_ancestorDisabledState;
enum DataListAncestorState { Unknown, InsideDataList, NotInsideDataList };
mutable enum DataListAncestorState m_dataListAncestorState;
// The initial value of m_willValidate depends on the derived class. We can't
// initialize it with a virtual function in the constructor. m_willValidate
// is not deterministic as long as m_willValidateInitialized is false.
mutable bool m_willValidateInitialized: 1;
mutable bool m_willValidate : 1;
// Cache of valid().
// But "candidate for constraint validation" doesn't affect m_isValid.
bool m_isValid : 1;
bool m_wasChangedSinceLastFormControlChangeEvent : 1;
bool m_wasFocusedByMouse : 1;
};
inline bool isHTMLFormControlElement(const Element& element)
{
return element.isFormControlElement();
}
DEFINE_HTMLELEMENT_TYPE_CASTS_WITH_FUNCTION(HTMLFormControlElement);
DEFINE_TYPE_CASTS(HTMLFormControlElement, FormAssociatedElement, control, control->isFormControlElement(), control.isFormControlElement());
} // namespace
#endif
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