The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/embedding/components/windowwatcher/src/nsAutoWindowStateHelper.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,71 @@
     1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
     1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.8 +
     1.9 +#include "nsAutoWindowStateHelper.h"
    1.10 +
    1.11 +#include "mozilla/dom/Event.h"
    1.12 +#include "nsIDocument.h"
    1.13 +#include "nsIDOMEvent.h"
    1.14 +#include "nsIDOMWindow.h"
    1.15 +#include "nsPIDOMWindow.h"
    1.16 +#include "nsString.h"
    1.17 +
    1.18 +using namespace mozilla;
    1.19 +using namespace mozilla::dom;
    1.20 +
    1.21 +/****************************************************************
    1.22 + ****************** nsAutoWindowStateHelper *********************
    1.23 + ****************************************************************/
    1.24 +
    1.25 +nsAutoWindowStateHelper::nsAutoWindowStateHelper(nsPIDOMWindow *aWindow)
    1.26 +  : mWindow(aWindow),
    1.27 +    mDefaultEnabled(DispatchEventToChrome("DOMWillOpenModalDialog"))
    1.28 +{
    1.29 +  if (mWindow) {
    1.30 +    mWindow->EnterModalState();
    1.31 +  }
    1.32 +}
    1.33 +
    1.34 +nsAutoWindowStateHelper::~nsAutoWindowStateHelper()
    1.35 +{
    1.36 +  if (mWindow) {
    1.37 +    mWindow->LeaveModalState();
    1.38 +  }
    1.39 +
    1.40 +  if (mDefaultEnabled) {
    1.41 +    DispatchEventToChrome("DOMModalDialogClosed");
    1.42 +  }
    1.43 +}
    1.44 +
    1.45 +bool
    1.46 +nsAutoWindowStateHelper::DispatchEventToChrome(const char *aEventName)
    1.47 +{
    1.48 +  // XXXbz should we skip dispatching the event if the inner changed?
    1.49 +  // That is, should we store both the inner and the outer?
    1.50 +  if (!mWindow) {
    1.51 +    return true;
    1.52 +  }
    1.53 +
    1.54 +  // The functions of nsContentUtils do not provide the required behavior,
    1.55 +  // so the following is inlined.
    1.56 +  nsIDocument* doc = mWindow->GetExtantDoc();
    1.57 +  if (!doc) {
    1.58 +    return true;
    1.59 +  }
    1.60 +
    1.61 +  ErrorResult rv;
    1.62 +  nsRefPtr<Event> event = doc->CreateEvent(NS_LITERAL_STRING("Events"), rv);
    1.63 +  if (rv.Failed()) {
    1.64 +    return false;
    1.65 +  }
    1.66 +  NS_ENSURE_TRUE(NS_SUCCEEDED(event->InitEvent(NS_ConvertASCIItoUTF16(aEventName), true, true)), false);
    1.67 +  event->SetTrusted(true);
    1.68 +  event->GetInternalNSEvent()->mFlags.mOnlyChromeDispatch = true;
    1.69 +
    1.70 +  nsCOMPtr<EventTarget> target = do_QueryInterface(mWindow);
    1.71 +  bool defaultActionEnabled;
    1.72 +  target->DispatchEvent(event, &defaultActionEnabled);
    1.73 +  return defaultActionEnabled;
    1.74 +}