/* -*- 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 nsPIWindowRoot_h__
#define nsPIWindowRoot_h__

#include "nsISupports.h"
#include "mozilla/dom/EventTarget.h"
#include "nsWeakReference.h"

class nsPIDOMWindow;
class nsIControllers;
class nsIController;

namespace mozilla {
namespace dom {
class TabParent;
} // namespace dom
} // namespace mozilla

#define NS_IWINDOWROOT_IID \
{ 0xb8724c49, 0xc398, 0x4f9b, \
  { 0x82, 0x59, 0x87, 0x27, 0xa6, 0x47, 0xdd, 0x0f } }

class nsPIWindowRoot : public mozilla::dom::EventTarget
{
public:
  NS_DECLARE_STATIC_IID_ACCESSOR(NS_IWINDOWROOT_IID)

  virtual nsPIDOMWindow* GetWindow()=0;

  // get and set the node that is the context of a popup menu
  virtual nsIDOMNode* GetPopupNode() = 0;
  virtual void SetPopupNode(nsIDOMNode* aNode) = 0;

  virtual nsresult GetControllerForCommand(const char *aCommand,
                                           nsIController** aResult) = 0;
  virtual nsresult GetControllers(nsIControllers** aResult) = 0;

  virtual void GetEnabledDisabledCommands(nsTArray<nsCString>& aEnabledCommands,
                                          nsTArray<nsCString>& aDisabledCommands) = 0;

  virtual void SetParentTarget(mozilla::dom::EventTarget* aTarget) = 0;
  virtual mozilla::dom::EventTarget* GetParentTarget() = 0;

  // Stores a weak reference to the browser.
  virtual void AddBrowser(mozilla::dom::TabParent* aBrowser) = 0;
  virtual void RemoveBrowser(mozilla::dom::TabParent* aBrowser) = 0;

  typedef void (*BrowserEnumerator)(mozilla::dom::TabParent* aTab, void* aArg);

  // Enumerate all stored browsers that for which the weak reference is valid.
  virtual void EnumerateBrowsers(BrowserEnumerator aEnumFunc, void* aArg) = 0;
};

NS_DEFINE_STATIC_IID_ACCESSOR(nsPIWindowRoot, NS_IWINDOWROOT_IID)

#endif // nsPIWindowRoot_h__