/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

/**

  Eric D Vaughan

  This class lays out its children either vertically or horizontally

**/

#ifndef nsScrollbarButtonFrame_h___

#define nsScrollbarButtonFrame_h___

#include "mozilla/Attributes.h"

#include "nsButtonBoxFrame.h"

#include "nsITimer.h"

#include "nsRepeatService.h"

class nsScrollbarButtonFrame final : public nsButtonBoxFrame

{

public:

  NS_DECL_FRAMEARENA_HELPERS(nsScrollbarButtonFrame)

  explicit nsScrollbarButtonFrame(ComputedStyle* aStyle):

    nsButtonBoxFrame(aStyle, kClassID), mCursorOnThis(false) {}

  // Overrides

  virtual void DestroyFrom(nsIFrame* aDestructRoot, PostDestroyData& aPostDestroyData) override;

  friend nsIFrame* NS_NewScrollbarButtonFrame(nsIPresShell* aPresShell, ComputedStyle* aStyle);

  virtual nsresult HandleEvent(nsPresContext* aPresContext,

                               mozilla::WidgetGUIEvent* aEvent,

                               nsEventStatus* aEventStatus) override;

  static nsresult GetChildWithTag(nsAtom* atom, nsIFrame* start, nsIFrame*& result);

  static nsresult GetParentWithTag(nsAtom* atom, nsIFrame* start, nsIFrame*& result);

  bool HandleButtonPress(nsPresContext* aPresContext,

                         mozilla::WidgetGUIEvent* aEvent,

                         nsEventStatus* aEventStatus);

  NS_IMETHOD HandleMultiplePress(nsPresContext* aPresContext,

                                 mozilla::WidgetGUIEvent* aEvent,

                                 nsEventStatus* aEventStatus,

                                 bool aControlHeld) override

 {

   return NS_OK;

 }

  NS_IMETHOD HandleDrag(nsPresContext* aPresContext,

                        mozilla::WidgetGUIEvent* aEvent,

                        nsEventStatus* aEventStatus) override

  {

    return NS_OK;

  }

  NS_IMETHOD HandleRelease(nsPresContext* aPresContext,

                           mozilla::WidgetGUIEvent* aEvent,

                           nsEventStatus* aEventStatus) override;

protected:

  void StartRepeat() {

    nsRepeatService::GetInstance()->Start(Notify, this,

                                          mContent->OwnerDoc(),

                                          NS_LITERAL_CSTRING("nsScrollbarButtonFrame"));

  }

  void StopRepeat() {

    nsRepeatService::GetInstance()->Stop(Notify, this);

  }

  void Notify();

  static void Notify(void* aData) {

    static_cast<nsScrollbarButtonFrame*>(aData)->Notify();

  }

  bool mCursorOnThis;

};

#endif