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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 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 "HTMLElement.h"
namespace WebCore {
class FormDataList;
class HTMLFormElement;
class RenderTextControl;
class ValidityState;
class VisibleSelection;
class HTMLFormControlElement : public HTMLElement {
public:
HTMLFormControlElement(const QualifiedName& tagName, Document*, HTMLFormElement*);
virtual ~HTMLFormControlElement();
virtual HTMLTagStatus endTagRequirement() const { return TagStatusRequired; }
virtual int tagPriority() const { return 1; }
HTMLFormElement* form() const { return m_form; }
ValidityState* validity();
bool formNoValidate() const;
void setFormNoValidate(bool);
virtual bool isTextFormControl() const { return false; }
virtual bool isEnabledFormControl() const { return !disabled(); }
virtual void parseMappedAttribute(MappedAttribute*);
virtual void attach();
virtual void insertedIntoTree(bool deep);
virtual void removedFromTree(bool deep);
virtual void reset() {}
virtual bool formControlValueMatchesRenderer() const { return m_valueMatchesRenderer; }
virtual void setFormControlValueMatchesRenderer(bool b) { m_valueMatchesRenderer = b; }
virtual void dispatchFormControlChangeEvent();
bool disabled() const;
void setDisabled(bool);
virtual bool supportsFocus() const;
virtual bool isFocusable() const;
virtual bool isKeyboardFocusable(KeyboardEvent*) const;
virtual bool isMouseFocusable() const;
virtual bool isEnumeratable() const { return false; }
virtual bool isReadOnlyFormControl() const { return m_readOnly; }
void setReadOnly(bool);
// Determines whether or not a control will be automatically focused
virtual bool autofocus() const;
void setAutofocus(bool);
bool required() const;
void setRequired(bool);
virtual void recalcStyle(StyleChange);
virtual const AtomicString& formControlName() const;
virtual const AtomicString& formControlType() const = 0;
const AtomicString& type() const { return formControlType(); }
const AtomicString& name() const { return formControlName(); }
void setName(const AtomicString& name);
virtual bool isFormControlElement() const { return true; }
virtual bool isRadioButton() 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) { return false; }
virtual bool isSuccessfulSubmitButton() const { return false; }
virtual bool isActivatedSubmit() const { return false; }
virtual void setActivatedSubmit(bool) { }
virtual short tabIndex() const;
virtual bool willValidate() const;
String validationMessage();
bool checkValidity();
void updateValidity();
void setCustomValidity(const String&);
virtual bool valueMissing() const { return false; }
virtual bool patternMismatch() const { return false; }
virtual bool tooLong() const { return false; }
void formDestroyed() { m_form = 0; }
virtual void dispatchFocusEvent();
virtual void dispatchBlurEvent();
protected:
void removeFromForm();
private:
virtual HTMLFormElement* virtualForm() const;
virtual bool isDefaultButtonForForm() const;
virtual bool isValidFormControlElement();
HTMLFormElement* m_form;
OwnPtr<ValidityState> m_validityState;
bool m_disabled : 1;
bool m_readOnly : 1;
bool m_required : 1;
bool m_valueMatchesRenderer : 1;
};
class HTMLFormControlElementWithState : public HTMLFormControlElement {
public:
HTMLFormControlElementWithState(const QualifiedName& tagName, Document*, HTMLFormElement*);
virtual ~HTMLFormControlElementWithState();
virtual void finishParsingChildren();
protected:
virtual void willMoveToNewOwnerDocument();
virtual void didMoveToNewOwnerDocument();
};
class HTMLTextFormControlElement : public HTMLFormControlElementWithState {
public:
HTMLTextFormControlElement(const QualifiedName&, Document*, HTMLFormElement*);
virtual ~HTMLTextFormControlElement();
virtual void dispatchFocusEvent();
virtual void dispatchBlurEvent();
int selectionStart();
int selectionEnd();
void setSelectionStart(int);
void setSelectionEnd(int);
void select();
void setSelectionRange(int start, int end);
VisibleSelection selection() const;
protected:
bool placeholderShouldBeVisible() const;
void updatePlaceholderVisibility(bool);
virtual int cachedSelectionStart() const = 0;
virtual int cachedSelectionEnd() const = 0;
virtual void parseMappedAttribute(MappedAttribute*);
private:
// A subclass should return true if placeholder processing is needed.
virtual bool supportsPlaceholder() const = 0;
// Returns true if user-editable value is empty. This is used to check placeholder visibility.
virtual bool isEmptyValue() const = 0;
// Called in dispatchFocusEvent(), after placeholder process, before calling parent's dispatchFocusEvent().
virtual void handleFocusEvent() { }
// Called in dispatchBlurEvent(), after placeholder process, before calling parent's dispatchBlurEvent().
virtual void handleBlurEvent() { }
RenderTextControl* textRendererAfterUpdateLayout();
};
} //namespace
#endif
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