#ifndef DALI_DEMO_INTERNAL_EXPANDING_BUTTONS_IMPL_H
#define DALI_DEMO_INTERNAL_EXPANDING_BUTTONS_IMPL_H

/*
 * Copyright (c) 2020 Samsung Electronics Co., Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <dali-toolkit/public-api/controls/control-impl.h>
#include <dali/public-api/object/weak-handle.h>
#include "expanding-buttons.h"

namespace Demo
{
namespace Internal // To use TypeRegistry, handle and body classes need the same name
{
class ExpandingButtons : public Dali::Toolkit::Internal::Control
{
public:
  /**
   * Instantiate a new ExpandingButtons object
   */
  static Demo::ExpandingButtons New();

  /**
   * Constructor
   */
  ExpandingButtons();

  /**
   * Destructor
   */
  ~ExpandingButtons();

public: // API
  void RegisterButton(Dali::Toolkit::Control& control);

  void Expand();

  void Collapse();

public: // Signals
  Demo::ExpandingButtons::ExpandingButtonsSignalType& CollapsingSignal();

private: // From Control
  /**
   * @copydoc Toolkit::Control::OnInitialize()
   */
  virtual void OnInitialize() override;

  /**
   * @copydoc Toolkit::Control::OnRelayout()
   */
  virtual void OnRelayout(const Dali::Vector2& targetSize, Dali::RelayoutContainer& container) override;

private:
  /**
   * Callback when expand or collapse animation ends.
   */
  void OnExpandAnimationFinished(Dali::Animation& animation);

  /**
   * Called when the main button clicked.
   */
  bool OnExpandButtonClicked(Dali::Toolkit::Button button);

private:
  //undefined
  ExpandingButtons(const ExpandingButtons&);
  ExpandingButtons& operator=(const ExpandingButtons&);

private:
  std::vector<Dali::WeakHandle<Dali::Toolkit::Control> > mExpandingControls;

  Dali::Animation mExpandCollapseAnimation;

  bool mStyleButtonsHidden;

  Dali::Size mButtonSize; // Size of the buttons, used in animation calculations.

  Dali::Toolkit::PushButton mExpandButton; // Main button that is clicked to expand/collapse.

  Demo::ExpandingButtons::ExpandingButtonsSignalType mCollapsedSignal;
};

} // namespace Internal

inline Internal::ExpandingButtons& GetImpl(Demo::ExpandingButtons& handle)
{
  DALI_ASSERT_ALWAYS(handle);
  Dali::RefObject& object = handle.GetImplementation();
  return static_cast<Internal::ExpandingButtons&>(object);
}

inline const Internal::ExpandingButtons& GetImpl(const Demo::ExpandingButtons& handle)
{
  DALI_ASSERT_ALWAYS(handle);
  const Dali::RefObject& object = handle.GetImplementation();
  return static_cast<const Internal::ExpandingButtons&>(object);
}

} // namespace Demo

#endif //  DALI_DEMO_INTERNAL_EXPANDING_BUTTONS_IMPL_H