third_party/WebKit/Source/core/html/HTMLKeygenElement.cpp

/*
 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
 *           (C) 1999 Antti Koivisto (koivisto@kde.org)
 *           (C) 2001 Dirk Mueller (mueller@kde.org)
 * Copyright (C) 2004, 2005, 2006, 2010 Apple Inc. All rights reserved.
 *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
 *
 * 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.
 *
 */

#include "core/html/HTMLKeygenElement.h"

#include "bindings/core/v8/ExceptionStatePlaceholder.h"
#include "core/HTMLNames.h"
#include "core/dom/Document.h"
#include "core/dom/Text.h"
#include "core/dom/shadow/ShadowRoot.h"
#include "core/frame/Deprecation.h"
#include "core/html/FormData.h"
#include "core/html/HTMLOptionElement.h"
#include "core/html/HTMLSelectElement.h"
#include "core/layout/LayoutBlockFlow.h"
#include "core/loader/FrameLoaderClient.h"
#include "platform/text/PlatformLocale.h"
#include "public/platform/Platform.h"
#include "public/platform/WebLocalizedString.h"
#include "wtf/StdLibExtras.h"

using namespace blink;

namespace blink {

using namespace HTMLNames;

HTMLKeygenElement::HTMLKeygenElement(Document& document, HTMLFormElement* form)
    : HTMLFormControlElementWithState(keygenTag, document, form) {
  Deprecation::countDeprecation(document, UseCounter::HTMLKeygenElement);
  if (document.frame())
    document.frame()->loader().client()->didUseKeygen();
}

HTMLKeygenElement* HTMLKeygenElement::create(Document& document,
                                             HTMLFormElement* form) {
  HTMLKeygenElement* keygen = new HTMLKeygenElement(document, form);
  keygen->ensureUserAgentShadowRoot();
  return keygen;
}

LayoutObject* HTMLKeygenElement::createLayoutObject(
    const ComputedStyle& style) {
  // TODO(mstensho): While it's harmful and meaningless to allow most display
  // types on replaced content (e.g. table, table-row or flex), it would be
  // useful to honor at least some of them. Table-cell (and maybe table-caption
  // too), for instance. See crbug.com/335040
  return new LayoutBlockFlow(this);
}

void HTMLKeygenElement::didAddUserAgentShadowRoot(ShadowRoot& root) {
  DEFINE_STATIC_LOCAL(AtomicString, keygenSelectPseudoId,
                      ("-webkit-keygen-select"));

  Vector<String> keys;
  keys.reserveCapacity(2);
  keys.append(
      locale().queryString(WebLocalizedString::KeygenMenuHighGradeKeySize));
  keys.append(
      locale().queryString(WebLocalizedString::KeygenMenuMediumGradeKeySize));

  // Create a select element with one option element for each key size.
  HTMLSelectElement* select = HTMLSelectElement::create(document());
  select->setShadowPseudoId(keygenSelectPseudoId);
  for (const String& key : keys) {
    HTMLOptionElement* option = HTMLOptionElement::create(document());
    option->appendChild(Text::create(document(), key));
    select->appendChild(option);
  }

  root.appendChild(select);
}

void HTMLKeygenElement::parseAttribute(const QualifiedName& name,
                                       const AtomicString& oldValue,
                                       const AtomicString& value) {
  // Reflect disabled attribute on the shadow select element
  if (name == disabledAttr)
    shadowSelect()->setAttribute(name, value);

  HTMLFormControlElement::parseAttribute(name, oldValue, value);
}

void HTMLKeygenElement::appendToFormData(FormData& formData) {
  // Only RSA is supported at this time.
  const AtomicString& keyType = fastGetAttribute(keytypeAttr);
  if (!keyType.isNull() && !equalIgnoringCase(keyType, "rsa"))
    return;
  SecurityOrigin* topOrigin =
      document().frame()->tree().top()->securityContext()->getSecurityOrigin();
  String value = Platform::current()->signedPublicKeyAndChallengeString(
      shadowSelect()->selectedIndex(), fastGetAttribute(challengeAttr),
      document().baseURL(), KURL(KURL(), topOrigin->toString()));
  if (!value.isNull())
    formData.append(name(), value);
}

const AtomicString& HTMLKeygenElement::formControlType() const {
  DEFINE_STATIC_LOCAL(const AtomicString, keygen, ("keygen"));
  return keygen;
}

void HTMLKeygenElement::resetImpl() {
  shadowSelect()->reset();
}

HTMLSelectElement* HTMLKeygenElement::shadowSelect() const {
  ShadowRoot* root = userAgentShadowRoot();
  return root ? toHTMLSelectElement(root->firstChild()) : 0;
}

bool HTMLKeygenElement::isInteractiveContent() const {
  return true;
}

bool HTMLKeygenElement::supportsAutofocus() const {
  return true;
}

}  // namespace blink