text: // -------------------------------------------------
  // BlinKit - BlinKit Library
  // -------------------------------------------------
  //   File Name: HTMLFormControlElementWithState.cpp
  // Description: HTMLFormControlElementWithState Class
  //      Author: Ziming Li
  //     Created: 2021-07-30
  // -------------------------------------------------
  // Copyright (C) 2021 MingYang Software Technology.
  // -------------------------------------------------
  
  /*
   * 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, 2007 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/HTMLFormControlElementWithState.h"
  
  #include "core/frame/FrameHost.h"
  #include "core/frame/LocalFrame.h"
  #include "core/html/HTMLFormElement.h"
  #include "core/html/forms/FormController.h"
  #include "core/loader/FrameLoaderClient.h"
  #include "core/page/ChromeClient.h"
  
  namespace blink {
  
  HTMLFormControlElementWithState::HTMLFormControlElementWithState(const QualifiedName& tagName, Document& doc, HTMLFormElement* f)
      : HTMLFormControlElement(tagName, doc, f)
  {
  }
  
  HTMLFormControlElementWithState::~HTMLFormControlElementWithState()
  {
  }
  
  Node::InsertionNotificationRequest HTMLFormControlElementWithState::insertedInto(ContainerNode* insertionPoint)
  {
      if (insertionPoint->inDocument() && !containingShadowRoot())
          document().formController().registerStatefulFormControl(*this);
      return HTMLFormControlElement::insertedInto(insertionPoint);
  }
  
  void HTMLFormControlElementWithState::removedFrom(ContainerNode* insertionPoint)
  {
      if (insertionPoint->inDocument() && !containingShadowRoot() && !insertionPoint->containingShadowRoot())
          document().formController().unregisterStatefulFormControl(*this);
      HTMLFormControlElement::removedFrom(insertionPoint);
  }
  
  bool HTMLFormControlElementWithState::shouldAutocomplete() const
  {
      if (!form())
          return true;
      return form()->shouldAutocomplete();
  }
  
  void HTMLFormControlElementWithState::notifyFormStateChanged()
  {
  #if 0 // BKTODO:
      // This can be called during fragment parsing as a result of option
      // selection before the document is active (or even in a frame).
      if (!document().isActive())
          return;
      document().frame()->loader().client()->didUpdateCurrentHistoryItem();
  #endif
  }
  
  bool HTMLFormControlElementWithState::shouldSaveAndRestoreFormControlState() const
  {
      // We don't save/restore control state in a form with autocomplete=off.
      return inDocument() && shouldAutocomplete();
  }
  
  FormControlState HTMLFormControlElementWithState::saveFormControlState() const
  {
      return FormControlState();
  }
  
  void HTMLFormControlElementWithState::finishParsingChildren()
  {
      HTMLFormControlElement::finishParsingChildren();
      document().formController().restoreControlStateFor(*this);
  }
  
  bool HTMLFormControlElementWithState::isFormControlElementWithState() const
  {
      return true;
  }
  
  } // namespace blink
  