/* -*- 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/. */

/*

 * a piece of state that is stored in session history when the document

 * is not

 */

#ifndef nsPresState_h_

#define nsPresState_h_

#include "nsPoint.h"

#include "gfxPoint.h"

#include "nsAutoPtr.h"

class nsPresState {

 public:

  nsPresState()

      : mContentData(nullptr),

        mScrollState(0, 0),

        mAllowScrollOriginDowngrade(true),

        mResolution(1.0),

        mScaleToResolution(false),

        mDisabledSet(false),

        mDisabled(false),

        mDroppedDown(false) {}

  void SetScrollState(const nsPoint& aState) { mScrollState = aState; }

  nsPoint GetScrollPosition() const { return mScrollState; }

  void SetAllowScrollOriginDowngrade(bool aAllowScrollOriginDowngrade) {

    mAllowScrollOriginDowngrade = aAllowScrollOriginDowngrade;

  }

  bool GetAllowScrollOriginDowngrade() { return mAllowScrollOriginDowngrade; }

  void SetResolution(float aSize) { mResolution = aSize; }

  float GetResolution() const { return mResolution; }

  void SetScaleToResolution(bool aScaleToResolution) {

    mScaleToResolution = aScaleToResolution;

  }

  bool GetScaleToResolution() const { return mScaleToResolution; }

  void ClearNonScrollState() {

    mContentData = nullptr;

    mDisabledSet = false;

  }

  bool GetDisabled() const { return mDisabled; }

  void SetDisabled(bool aDisabled) {

    mDisabled = aDisabled;

    mDisabledSet = true;

  }

  bool IsDisabledSet() const { return mDisabledSet; }

  nsISupports* GetStateProperty() const { return mContentData; }

  void SetStateProperty(nsISupports* aProperty) { mContentData = aProperty; }

  void SetDroppedDown(bool aDroppedDown) { mDroppedDown = aDroppedDown; }

  bool GetDroppedDown() const { return mDroppedDown; }

  // MEMBER VARIABLES

 protected:

  nsCOMPtr<nsISupports> mContentData;

  nsPoint mScrollState;

  bool mAllowScrollOriginDowngrade;

  float mResolution;

  bool mScaleToResolution;

  bool mDisabledSet;

  bool mDisabled;

  bool mDroppedDown;

};

#endif /* nsPresState_h_ */