/* -*- Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 8; -*- */
/* vim: set sw=4 ts=8 et tw=80 : */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (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.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Mozilla Content App.
 *
 * The Initial Developer of the Original Code is
 *   The Mozilla Foundation.
 * Portions created by the Initial Developer are Copyright (C) 2010
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#ifndef nsInProcessTabChildGlobal_h
#define nsInProcessTabChildGlobal_h

#include "nsCOMPtr.h"
#include "nsFrameMessageManager.h"
#include "nsIScriptContext.h"
#include "nsDOMEventTargetHelper.h"
#include "nsIScriptObjectPrincipal.h"
#include "nsIScriptContext.h"
#include "nsIClassInfo.h"
#include "jsapi.h"
#include "nsIDocShell.h"
#include "nsIDOMElement.h"
#include "nsCOMArray.h"
#include "nsThreadUtils.h"

class nsInProcessTabChildGlobal : public nsDOMEventTargetHelper,
                                  public nsFrameScriptExecutor,
                                  public nsIInProcessContentFrameMessageManager,
                                  public nsIScriptObjectPrincipal,
                                  public nsIScriptContextPrincipal
{
public:
  nsInProcessTabChildGlobal(nsIDocShell* aShell, nsIContent* aOwner,
                            nsFrameMessageManager* aChrome);
  virtual ~nsInProcessTabChildGlobal();
  NS_DECL_ISUPPORTS_INHERITED
  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(nsInProcessTabChildGlobal,
                                           nsDOMEventTargetHelper)
  NS_FORWARD_SAFE_NSIFRAMEMESSAGEMANAGER(mMessageManager)
  NS_IMETHOD SendSyncMessage()
  {
    return mMessageManager ? mMessageManager->SendSyncMessage()
                           : NS_ERROR_NULL_POINTER;
  }
  NS_IMETHOD GetContent(nsIDOMWindow** aContent);
  NS_IMETHOD GetDocShell(nsIDocShell** aDocShell);
  NS_IMETHOD Dump(const nsAString& aStr)
  {
    return mMessageManager ? mMessageManager->Dump(aStr) : NS_OK;
  }
  NS_IMETHOD PrivateNoteIntentionalCrash();
  NS_DECL_NSIINPROCESSCONTENTFRAMEMESSAGEMANAGER

  virtual nsresult PreHandleEvent(nsEventChainPreVisitor& aVisitor);
  NS_IMETHOD AddEventListener(const nsAString& aType,
                              nsIDOMEventListener* aListener,
                              PRBool aUseCapture)
  {
    // By default add listeners only for trusted events!
    return nsDOMEventTargetHelper::AddEventListener(aType, aListener,
                                                    aUseCapture, PR_FALSE, 1);
  }
  NS_IMETHOD AddEventListener(const nsAString& aType,
                              nsIDOMEventListener* aListener,
                              PRBool aUseCapture, PRBool aWantsUntrusted,
                              PRUint8 optional_argc)
  {
    return nsDOMEventTargetHelper::AddEventListener(aType, aListener,
                                                    aUseCapture,
                                                    aWantsUntrusted,
                                                    optional_argc);
  }

  virtual nsIScriptObjectPrincipal* GetObjectPrincipal() { return this; }
  virtual JSContext* GetJSContextForEventHandlers() { return mCx; }
  virtual nsIPrincipal* GetPrincipal() { return mPrincipal; }
  void LoadFrameScript(const nsAString& aURL);
  void Disconnect();
  void SendMessageToParent(const nsString& aMessage, PRBool aSync,
                           const nsString& aJSON,
                           nsTArray<nsString>* aJSONRetVal);
  nsFrameMessageManager* GetInnerManager()
  {
    return static_cast<nsFrameMessageManager*>(mMessageManager.get());
  }

  void SetOwner(nsIContent* aOwner) { mOwner = aOwner; }
  nsFrameMessageManager* GetChromeMessageManager()
  {
    return mChromeMessageManager;
  }
  void SetChromeMessageManager(nsFrameMessageManager* aParent)
  {
    mChromeMessageManager = aParent;
  }

  void DelayedDisconnect();
protected:
  nsresult Init();
  nsresult InitTabChildGlobal();
  nsCOMPtr<nsIContentFrameMessageManager> mMessageManager;
  nsCOMPtr<nsIDocShell> mDocShell;
  PRPackedBool mInitialized;
  PRPackedBool mLoadingScript;
  PRPackedBool mDelayedDisconnect;
public:
  nsIContent* mOwner;
  nsFrameMessageManager* mChromeMessageManager;
  nsTArray<nsCOMPtr<nsIRunnable> > mASyncMessages;
};

#endif
