/* -*- 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/. */

#ifndef nsTreeSelection_h__

#define nsTreeSelection_h__

#include "nsITreeSelection.h"

#include "nsITimer.h"

#include "nsCycleCollectionParticipant.h"

#include "mozilla/Attributes.h"

class nsITreeBoxObject;

class nsTreeColumn;

struct nsTreeRange;

class nsTreeSelection final : public nsINativeTreeSelection

{

public:

  explicit nsTreeSelection(nsITreeBoxObject* aTree);

  NS_DECL_CYCLE_COLLECTING_ISUPPORTS

  NS_DECL_CYCLE_COLLECTION_CLASS(nsTreeSelection)

  NS_DECL_NSITREESELECTION

  // nsINativeTreeSelection: Untrusted code can use us

  NS_IMETHOD EnsureNative() override { return NS_OK; }

  friend struct nsTreeRange;

protected:

  ~nsTreeSelection();

  nsresult FireOnSelectHandler();

  static void SelectCallback(nsITimer *aTimer, void *aClosure);

protected:

  // Helper function to get the content node associated with mTree.

  already_AddRefed<nsIContent> GetContent();

  // Members

  nsCOMPtr<nsITreeBoxObject> mTree; // The tree will hold on to us through the view and let go when it dies.

  bool mSuppressed; // Whether or not we should be firing onselect events.

  int32_t mCurrentIndex; // The item to draw the rect around. The last one clicked, etc.

  RefPtr<nsTreeColumn> mCurrentColumn;

  int32_t mShiftSelectPivot; // Used when multiple SHIFT+selects are performed to pivot on.

  nsTreeRange* mFirstRange; // Our list of ranges.

  nsCOMPtr<nsITimer> mSelectTimer;

};

nsresult

NS_NewTreeSelection(nsITreeBoxObject* aTree, nsITreeSelection** aResult);

#endif