/*

 * 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, 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 HTMLTextAreaElement_h

#define HTMLTextAreaElement_h

#include "HTMLFormControlElement.h"

namespace WebCore {

class BeforeTextInsertedEvent;

class VisibleSelection;

class HTMLTextAreaElement : public HTMLTextFormControlElement {

public:

    static PassRefPtr<HTMLTextAreaElement> create(const QualifiedName&, Document*, HTMLFormElement*);

    int cols() const { return m_cols; }

    int rows() const { return m_rows; }

    bool shouldWrapText() const { return m_wrap != NoWrap; }

    String value() const;

    void setValue(const String&);

    String defaultValue() const;

    void setDefaultValue(const String&);

    int textLength() const { return value().length(); }

    int maxLength() const;

    void setMaxLength(int, ExceptionCode&);

    virtual bool tooLong() const;

    void rendererWillBeDestroyed();

    void setCols(int);

    void setRows(int);

    void cacheSelection(int s, int e) { m_cachedSelectionStart = s; m_cachedSelectionEnd = e; };

private:

    HTMLTextAreaElement(const QualifiedName&, Document*, HTMLFormElement*);

    enum WrapMethod { NoWrap, SoftWrap, HardWrap };

    void handleBeforeTextInsertedEvent(BeforeTextInsertedEvent*) const;

    static String sanitizeUserInputValue(const String&, unsigned maxLength);

    void updateValue() const;

    void setNonDirtyValue(const String&);

    virtual bool supportsPlaceholder() const { return true; }

    virtual bool isEmptyValue() const { return value().isEmpty(); }

    virtual int cachedSelectionStart() const { return m_cachedSelectionStart; }

    virtual int cachedSelectionEnd() const { return m_cachedSelectionEnd; }

    virtual bool isOptionalFormControl() const { return !isRequiredFormControl(); }

    virtual bool isRequiredFormControl() const { return required(); }

    virtual void defaultEventHandler(Event*);

    virtual bool checkDTD(const Node* newChild) { return newChild->isTextNode(); }

    virtual bool isEnumeratable() const { return true; }

    virtual const AtomicString& formControlType() const;

    virtual bool saveFormControlState(String& value) const;

    virtual void restoreFormControlState(const String&);

    virtual bool isTextFormControl() const { return true; }

    virtual bool valueMissing() const { return isRequiredFormControl() && !disabled() && !readOnly() && value().isEmpty(); }

    virtual void childrenChanged(bool changedByParser = false, Node* beforeChange = 0, Node* afterChange = 0, int childCountDelta = 0);

    virtual void parseMappedAttribute(Attribute*);

    virtual RenderObject* createRenderer(RenderArena*, RenderStyle*);

    virtual bool appendFormData(FormDataList&, bool);

    virtual void reset();

    virtual bool isMouseFocusable() const;

    virtual bool isKeyboardFocusable(KeyboardEvent*) const;

    virtual void updateFocusAppearance(bool restorePreviousSelection);

    virtual void accessKeyAction(bool sendToAnyElement);

    virtual bool shouldUseInputMethod() const;

    int m_rows;

    int m_cols;

    WrapMethod m_wrap;

    mutable String m_value;

    int m_cachedSelectionStart;

    int m_cachedSelectionEnd;

    mutable bool m_isDirty;

};

} //namespace

#endif