nsDOMPopupBlockedEvent.cpp

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
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 * The contents of this file are subject to the Mozilla Public License Version
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 * the License. You may obtain a copy of the License at
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 *
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 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is mozilla.org code.
 *
 * The Initial Developer of the Original Code is
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 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
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 * Contributor(s):
 *   Steve Clark (buster@netscape.com)
 *   Ilya Konstantinov (mozilla-code@future.shiny.co.il)
 *
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 * 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"),
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#include "nsDOMPopupBlockedEvent.h"
#include "nsIURI.h"
#include "nsContentUtils.h"
#include "nsIWebNavigation.h"
#include "nsIInterfaceRequestorUtils.h"

nsDOMPopupBlockedEvent::nsDOMPopupBlockedEvent(nsPresContext* aPresContext,
                                               nsPopupBlockedEvent* aEvent)
  : nsDOMEvent(aPresContext, aEvent ? aEvent :
               new nsPopupBlockedEvent(PR_FALSE, 0))
{
  NS_ASSERTION(mEvent->eventStructType == NS_POPUPBLOCKED_EVENT, "event type mismatch");

  if (aEvent) {
    mEventIsInternal = PR_FALSE;
  }
  else {
    mEventIsInternal = PR_TRUE;
    mEvent->time = PR_Now();
  }
}

nsDOMPopupBlockedEvent::~nsDOMPopupBlockedEvent() 
{
  if (mEventIsInternal) {
    if (mEvent->eventStructType == NS_POPUPBLOCKED_EVENT) {
      nsPopupBlockedEvent* event = NS_STATIC_CAST(nsPopupBlockedEvent*, mEvent);
      NS_IF_RELEASE(event->mRequestingWindowURI);
      NS_IF_RELEASE(event->mPopupWindowURI);
    }
  }
}

NS_IMPL_ADDREF_INHERITED(nsDOMPopupBlockedEvent, nsDOMEvent)
NS_IMPL_RELEASE_INHERITED(nsDOMPopupBlockedEvent, nsDOMEvent)

NS_INTERFACE_MAP_BEGIN(nsDOMPopupBlockedEvent)
  NS_INTERFACE_MAP_ENTRY(nsIDOMPopupBlockedEvent)
  NS_INTERFACE_MAP_ENTRY(nsIDOMPopupBlockedEvent_MOZILLA_1_8_BRANCH)
  NS_INTERFACE_MAP_ENTRY_CONTENT_CLASSINFO(PopupBlockedEvent)
NS_INTERFACE_MAP_END_INHERITING(nsDOMEvent)

NS_IMETHODIMP
nsDOMPopupBlockedEvent::InitPopupBlockedEvent(const nsAString & aTypeArg,
                            PRBool aCanBubbleArg, PRBool aCancelableArg,
                            nsIURI *aRequestingWindowURI,
                            nsIURI *aPopupWindowURI,
                            const nsAString & aPopupWindowFeatures)
{
  nsresult rv = nsDOMEvent::InitEvent(aTypeArg, aCanBubbleArg, aCancelableArg);
  NS_ENSURE_SUCCESS(rv, rv);

  switch (mEvent->eventStructType)
  {
    case NS_POPUPBLOCKED_EVENT:
    {
       nsPopupBlockedEvent* event = NS_STATIC_CAST(nsPopupBlockedEvent*, mEvent);
       event->mRequestingWindowURI = aRequestingWindowURI;
       event->mPopupWindowURI = aPopupWindowURI;
       NS_IF_ADDREF(event->mRequestingWindowURI);
       NS_IF_ADDREF(event->mPopupWindowURI);
       event->mPopupWindowFeatures = aPopupWindowFeatures;
       break;
    }
    default:
       break;
  }

  return NS_OK;
}

NS_IMETHODIMP
nsDOMPopupBlockedEvent::InitPopupBlockedEvent(const nsAString & aTypeArg,
                            PRBool aCanBubbleArg, PRBool aCancelableArg,
                            nsIDOMWindow *aRequestingWindow,
                            nsIURI *aPopupWindowURI,
                            const nsAString & aPopupWindowFeatures)
{
  nsresult rv = nsDOMEvent::InitEvent(aTypeArg, aCanBubbleArg, aCancelableArg);
  NS_ENSURE_SUCCESS(rv, rv);

  switch (mEvent->eventStructType)
  {
    case NS_POPUPBLOCKED_EVENT:
    {
       nsPopupBlockedEvent* event = NS_STATIC_CAST(nsPopupBlockedEvent*, mEvent);
       event->mRequestingWindow = do_GetWeakReference(aRequestingWindow);
       event->mPopupWindowURI = aPopupWindowURI;
       NS_IF_ADDREF(event->mPopupWindowURI);

       /*
        * If this method was callable from script, this could be a
        * security exploit right here, but since it's not, we're ok.
        */
       event->mRequestingWindowURI = nsnull;
       if (aRequestingWindow) {
         nsCOMPtr<nsIWebNavigation> webNav =
           do_GetInterface(aRequestingWindow);
         if (webNav)
           webNav->GetCurrentURI(&event->mRequestingWindowURI);
       }

       event->mPopupWindowFeatures = aPopupWindowFeatures;
       break;
    }
    default:
       break;
  }

  return NS_OK;
}

NS_IMETHODIMP
nsDOMPopupBlockedEvent::GetRequestingWindowURI(nsIURI **aRequestingWindowURI)
{
  NS_ENSURE_ARG_POINTER(aRequestingWindowURI);
  if (mEvent->eventStructType == NS_POPUPBLOCKED_EVENT) {
    nsPopupBlockedEvent* event = NS_STATIC_CAST(nsPopupBlockedEvent*, mEvent);
    *aRequestingWindowURI = event->mRequestingWindowURI;
    NS_IF_ADDREF(*aRequestingWindowURI);
    return NS_OK;
  }
  *aRequestingWindowURI = 0;
  return NS_OK;  // Don't throw an exception
}

NS_IMETHODIMP
nsDOMPopupBlockedEvent::GetRequestingWindow(nsIDOMWindow **aRequestingWindow)
{
  if (mEvent->eventStructType == NS_POPUPBLOCKED_EVENT) {
    nsPopupBlockedEvent* event = NS_STATIC_CAST(nsPopupBlockedEvent*, mEvent);
    CallQueryReferent(event->mRequestingWindow.get(), aRequestingWindow);
  } else {
    *aRequestingWindow = 0;
  }

  return NS_OK;
}

NS_IMETHODIMP
nsDOMPopupBlockedEvent::GetPopupWindowURI(nsIURI **aPopupWindowURI)
{
  NS_ENSURE_ARG_POINTER(aPopupWindowURI);
  if (mEvent->eventStructType == NS_POPUPBLOCKED_EVENT) {
    nsPopupBlockedEvent* event = NS_STATIC_CAST(nsPopupBlockedEvent*, mEvent);
    *aPopupWindowURI = event->mPopupWindowURI;
    NS_IF_ADDREF(*aPopupWindowURI);
    return NS_OK;
  }
  *aPopupWindowURI = 0;
  return NS_OK;  // Don't throw an exception
}

NS_IMETHODIMP
nsDOMPopupBlockedEvent::GetPopupWindowFeatures(nsAString &aPopupWindowFeatures)
{
  if (mEvent->eventStructType == NS_POPUPBLOCKED_EVENT) {
    nsPopupBlockedEvent* event = NS_STATIC_CAST(nsPopupBlockedEvent*, mEvent);
    aPopupWindowFeatures = event->mPopupWindowFeatures;
    return NS_OK;
  }
  aPopupWindowFeatures.Truncate();
  return NS_OK;  // Don't throw an exception
}

nsresult NS_NewDOMPopupBlockedEvent(nsIDOMEvent** aInstancePtrResult,
                                    nsPresContext* aPresContext,
                                    nsPopupBlockedEvent *aEvent) 
{
  nsDOMPopupBlockedEvent* it = new nsDOMPopupBlockedEvent(aPresContext, aEvent);
  if (nsnull == it) {
    return NS_ERROR_OUT_OF_MEMORY;
  }

  return CallQueryInterface(it, aInstancePtrResult);
}