/*
 * 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:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * 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.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef WebFormControlElement_h
#define WebFormControlElement_h

#include "../platform/WebString.h"
#include "WebElement.h"
#include "WebFormElement.h"

#if BLINK_IMPLEMENTATION
namespace WebCore { class HTMLFormControlElement; }
#endif

namespace blink {

// Provides readonly access to some properties of a DOM form control element node.
class WebFormControlElement : public WebElement {
public:
    WebFormControlElement() : WebElement() { }
    WebFormControlElement(const WebFormControlElement& e) : WebElement(e) { }

    WebFormControlElement& operator=(const WebFormControlElement& e)
    {
        WebElement::assign(e);
        return *this;
    }
    void assign(const WebFormControlElement& e) { WebElement::assign(e); }

    BLINK_EXPORT bool isEnabled() const;
    BLINK_EXPORT bool isReadOnly() const;
    BLINK_EXPORT WebString formControlName() const;
    BLINK_EXPORT WebString formControlType() const;

    // FIXME: remove this method when no longer used.
    BLINK_EXPORT void dispatchFormControlChangeEvent();

    BLINK_EXPORT bool isAutofilled() const;
    BLINK_EXPORT void setAutofilled(bool);

    // Returns true if autocomplete attribute of the element is not set as "off".
    BLINK_EXPORT bool autoComplete() const;

    // Sets value for input element, textarea element and select element. For select
    // element it finds the option with value matches the given parameter and make the
    // option as the current selection.
    BLINK_EXPORT void setValue(const WebString&, bool sendEvents = false);
    // Returns value of element. For select element, it returns the value of
    // the selected option if present. If no selected option, an empty string
    // is returned. If element doesn't fall into input element, textarea element
    // and select element categories, a null string is returned.
    BLINK_EXPORT WebString value() const;
    // Sets suggested value for element. For select element it finds the option
    // with value matches the given parameter and make the option as the suggested
    // selection. The goal of introducing suggested value is to not leak any information
    // to JavaScript.
    BLINK_EXPORT void setSuggestedValue(const WebString&);
    // Returns suggested value of element. If element doesn't fall into input element,
    // textarea element and select element categories, a null string is returned.
    BLINK_EXPORT WebString suggestedValue() const;

    // Returns the non-sanitized, exact value inside the text input field
    // or insisde the textarea. If neither input element nor textarea element,
    // a null string is returned.
    BLINK_EXPORT WebString editingValue() const;

    // Sets character selection range.
    BLINK_EXPORT void setSelectionRange(int start, int end);
    // Returned value represents a cursor/caret position at the current
    // selection's start for text input field or textarea. If neither input
    // element nor textarea element, 0 is returned.
    BLINK_EXPORT int selectionStart() const;
    // Returned value represents a cursor/caret position at the current
    // selection's end for text input field or textarea. If neither input
    // element nor textarea element, 0 is returned.
    BLINK_EXPORT int selectionEnd() const;

    // Returns direction of text of element.
    BLINK_EXPORT WebString directionForFormData() const;

    // Returns the name that should be used for the specified |element| when
    // storing autofill data.  This is either the field name or its id, an empty
    // string if it has no name and no id.
    BLINK_EXPORT WebString nameForAutofill() const;

    BLINK_EXPORT WebFormElement form() const;

#if BLINK_IMPLEMENTATION
    WebFormControlElement(const WTF::PassRefPtr<WebCore::HTMLFormControlElement>&);
    WebFormControlElement& operator=(const WTF::PassRefPtr<WebCore::HTMLFormControlElement>&);
    operator WTF::PassRefPtr<WebCore::HTMLFormControlElement>() const;
#endif
};

} // namespace blink

#endif