embedding/components/windowwatcher/src/nsAutoWindowStateHelper.cpp
author Ehsan Akhgari <ehsan@mozilla.com>
Mon, 17 Oct 2011 10:59:28 -0400
changeset 80187 ec7577dec4fceef0ac2717416d9c48289402d935
parent 79146 e7854b4d29ba905ae3994f821b160c989bac4260
permissions -rw-r--r--
Bug 690892 - Replace PR_TRUE/PR_FALSE with true/false on mozilla-central; rs=dbaron Landing on a CLOSED TREE

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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#include "nsAutoWindowStateHelper.h"

#include "nsIDOMWindow.h"
#include "nsPIDOMWindow.h"
#include "nsIDOMEventTarget.h"
#include "nsIDOMEvent.h"
#include "nsIPrivateDOMEvent.h"
#include "nsString.h"

/****************************************************************
 ****************** nsAutoWindowStateHelper *********************
 ****************************************************************/

nsAutoWindowStateHelper::nsAutoWindowStateHelper(nsIDOMWindow *aWindow)
  : mWindow(aWindow),
    mDefaultEnabled(DispatchCustomEvent("DOMWillOpenModalDialog"))
{
  nsCOMPtr<nsPIDOMWindow> window(do_QueryInterface(aWindow));

  if (window) {
    mCallerWindow = window->EnterModalState();
  }
}

nsAutoWindowStateHelper::~nsAutoWindowStateHelper()
{
  nsCOMPtr<nsPIDOMWindow> window(do_QueryInterface(mWindow));

  if (window) {
    window->LeaveModalState(mCallerWindow);
  }

  if (mDefaultEnabled) {
    DispatchCustomEvent("DOMModalDialogClosed");
  }
}

bool
nsAutoWindowStateHelper::DispatchCustomEvent(const char *aEventName)
{
  nsCOMPtr<nsPIDOMWindow> window = do_QueryInterface(mWindow);
  if (!window) {
    return true;
  }

  return window->DispatchCustomEvent(aEventName);
}