/*
 * 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,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "public/web/WebFormControlElement.h"

#include "core/dom/NodeComputedStyle.h"
#include "core/events/Event.h"
#include "core/html/HTMLFormControlElement.h"
#include "core/html/HTMLFormElement.h"
#include "core/html/HTMLInputElement.h"
#include "core/html/HTMLSelectElement.h"
#include "core/html/HTMLTextAreaElement.h"

#include "wtf/PassRefPtr.h"

namespace blink {

bool WebFormControlElement::isEnabled() const {
  return !constUnwrap<HTMLFormControlElement>()->isDisabledFormControl();
}

bool WebFormControlElement::isReadOnly() const {
  return constUnwrap<HTMLFormControlElement>()->isReadOnly();
}

WebString WebFormControlElement::formControlName() const {
  return constUnwrap<HTMLFormControlElement>()->name();
}

WebString WebFormControlElement::formControlType() const {
  return constUnwrap<HTMLFormControlElement>()->type();
}

bool WebFormControlElement::isAutofilled() const {
  return constUnwrap<HTMLFormControlElement>()->isAutofilled();
}

void WebFormControlElement::setAutofilled(bool autofilled) {
  unwrap<HTMLFormControlElement>()->setAutofilled(autofilled);
}

WebString WebFormControlElement::nameForAutofill() const {
  return constUnwrap<HTMLFormControlElement>()->nameForAutofill();
}

bool WebFormControlElement::autoComplete() const {
  if (isHTMLInputElement(*m_private))
    return constUnwrap<HTMLInputElement>()->shouldAutocomplete();
  if (isHTMLTextAreaElement(*m_private))
    return constUnwrap<HTMLTextAreaElement>()->shouldAutocomplete();
  if (isHTMLSelectElement(*m_private))
    return constUnwrap<HTMLSelectElement>()->shouldAutocomplete();
  return false;
}

void WebFormControlElement::setValue(const WebString& value, bool sendEvents) {
  if (isHTMLInputElement(*m_private))
    unwrap<HTMLInputElement>()->setValue(
        value, sendEvents ? DispatchInputAndChangeEvent : DispatchNoEvent);
  else if (isHTMLTextAreaElement(*m_private))
    unwrap<HTMLTextAreaElement>()->setValue(
        value, sendEvents ? DispatchInputAndChangeEvent : DispatchNoEvent);
  else if (isHTMLSelectElement(*m_private))
    unwrap<HTMLSelectElement>()->setValue(value, sendEvents);
}

void WebFormControlElement::setAutofillValue(const WebString& value) {
  // The input and change events will be sent in setValue.
  if (isHTMLInputElement(*m_private) || isHTMLTextAreaElement(*m_private)) {
    if (!focused())
      unwrap<Element>()->dispatchFocusEvent(nullptr, WebFocusTypeForward,
                                            nullptr);
    unwrap<Element>()->dispatchScopedEvent(
        Event::createBubble(EventTypeNames::keydown));
    unwrap<TextControlElement>()->setValue(value, DispatchInputAndChangeEvent);
    unwrap<Element>()->dispatchScopedEvent(
        Event::createBubble(EventTypeNames::keyup));
    if (!focused())
      unwrap<Element>()->dispatchBlurEvent(nullptr, WebFocusTypeForward,
                                           nullptr);
  } else if (isHTMLSelectElement(*m_private)) {
    if (!focused())
      unwrap<Element>()->dispatchFocusEvent(nullptr, WebFocusTypeForward,
                                            nullptr);
    unwrap<HTMLSelectElement>()->setValue(value, true);
    if (!focused())
      unwrap<Element>()->dispatchBlurEvent(nullptr, WebFocusTypeForward,
                                           nullptr);
  }
}

WebString WebFormControlElement::value() const {
  if (isHTMLInputElement(*m_private))
    return constUnwrap<HTMLInputElement>()->value();
  if (isHTMLTextAreaElement(*m_private))
    return constUnwrap<HTMLTextAreaElement>()->value();
  if (isHTMLSelectElement(*m_private))
    return constUnwrap<HTMLSelectElement>()->value();
  return WebString();
}

void WebFormControlElement::setSuggestedValue(const WebString& value) {
  if (isHTMLInputElement(*m_private))
    unwrap<HTMLInputElement>()->setSuggestedValue(value);
  else if (isHTMLTextAreaElement(*m_private))
    unwrap<HTMLTextAreaElement>()->setSuggestedValue(value);
  else if (isHTMLSelectElement(*m_private))
    unwrap<HTMLSelectElement>()->setSuggestedValue(value);
}

WebString WebFormControlElement::suggestedValue() const {
  if (isHTMLInputElement(*m_private))
    return constUnwrap<HTMLInputElement>()->suggestedValue();
  if (isHTMLTextAreaElement(*m_private))
    return constUnwrap<HTMLTextAreaElement>()->suggestedValue();
  if (isHTMLSelectElement(*m_private))
    return constUnwrap<HTMLSelectElement>()->suggestedValue();
  return WebString();
}

WebString WebFormControlElement::editingValue() const {
  if (isHTMLInputElement(*m_private))
    return constUnwrap<HTMLInputElement>()->innerEditorValue();
  if (isHTMLTextAreaElement(*m_private))
    return constUnwrap<HTMLTextAreaElement>()->innerEditorValue();
  return WebString();
}

void WebFormControlElement::setSelectionRange(int start, int end) {
  if (isHTMLInputElement(*m_private))
    unwrap<HTMLInputElement>()->setSelectionRange(start, end);
  else if (isHTMLTextAreaElement(*m_private))
    unwrap<HTMLTextAreaElement>()->setSelectionRange(start, end);
}

int WebFormControlElement::selectionStart() const {
  if (isHTMLInputElement(*m_private))
    return constUnwrap<HTMLInputElement>()->selectionStart();
  if (isHTMLTextAreaElement(*m_private))
    return constUnwrap<HTMLTextAreaElement>()->selectionStart();
  return 0;
}

int WebFormControlElement::selectionEnd() const {
  if (isHTMLInputElement(*m_private))
    return constUnwrap<HTMLInputElement>()->selectionEnd();
  if (isHTMLTextAreaElement(*m_private))
    return constUnwrap<HTMLTextAreaElement>()->selectionEnd();
  return 0;
}

WebString WebFormControlElement::alignmentForFormData() const {
  if (const ComputedStyle* style =
          constUnwrap<HTMLFormControlElement>()->computedStyle()) {
    if (style->textAlign() == ETextAlign::kRight)
      return WebString::fromUTF8("right");
    if (style->textAlign() == ETextAlign::kLeft)
      return WebString::fromUTF8("left");
  }
  return WebString();
}

WebString WebFormControlElement::directionForFormData() const {
  if (const ComputedStyle* style =
          constUnwrap<HTMLFormControlElement>()->computedStyle()) {
    return style->isLeftToRightDirection() ? WebString::fromUTF8("ltr")
                                           : WebString::fromUTF8("rtl");
  }
  return WebString::fromUTF8("ltr");
}

WebFormElement WebFormControlElement::form() const {
  return WebFormElement(constUnwrap<HTMLFormControlElement>()->form());
}

WebFormControlElement::WebFormControlElement(HTMLFormControlElement* elem)
    : WebElement(elem) {}

DEFINE_WEB_NODE_TYPE_CASTS(WebFormControlElement,
                           isElementNode() &&
                               constUnwrap<Element>()->isFormControlElement());

WebFormControlElement& WebFormControlElement::operator=(
    HTMLFormControlElement* elem) {
  m_private = elem;
  return *this;
}

WebFormControlElement::operator HTMLFormControlElement*() const {
  return toHTMLFormControlElement(m_private.get());
}

}  // namespace blink