1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/events/AsyncEventDispatcher.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,96 @@
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 "mozilla/AsyncEventDispatcher.h"
1.10 +#include "mozilla/BasicEvents.h"
1.11 +#include "mozilla/EventDispatcher.h"
1.12 +#include "mozilla/dom/Event.h" // for nsIDOMEvent::InternalDOMEvent()
1.13 +#include "mozilla/dom/EventTarget.h"
1.14 +#include "nsContentUtils.h"
1.15 +#include "nsIDOMEvent.h"
1.16 +
1.17 +namespace mozilla {
1.18 +
1.19 +using namespace dom;
1.20 +
1.21 +/******************************************************************************
1.22 + * mozilla::AsyncEventDispatcher
1.23 + ******************************************************************************/
1.24 +
1.25 +AsyncEventDispatcher::AsyncEventDispatcher(nsINode* aEventNode,
1.26 + WidgetEvent& aEvent)
1.27 + : mEventNode(aEventNode)
1.28 + , mDispatchChromeOnly(false)
1.29 +{
1.30 + MOZ_ASSERT(mEventNode);
1.31 + EventDispatcher::CreateEvent(aEventNode, nullptr, &aEvent, EmptyString(),
1.32 + getter_AddRefs(mEvent));
1.33 + NS_ASSERTION(mEvent, "Should never fail to create an event");
1.34 + mEvent->DuplicatePrivateData();
1.35 + mEvent->SetTrusted(aEvent.mFlags.mIsTrusted);
1.36 +}
1.37 +
1.38 +NS_IMETHODIMP
1.39 +AsyncEventDispatcher::Run()
1.40 +{
1.41 + if (mEvent) {
1.42 + if (mDispatchChromeOnly) {
1.43 + MOZ_ASSERT(mEvent->InternalDOMEvent()->IsTrusted());
1.44 +
1.45 + nsCOMPtr<nsIDocument> ownerDoc = mEventNode->OwnerDoc();
1.46 + nsPIDOMWindow* window = ownerDoc->GetWindow();
1.47 + if (!window) {
1.48 + return NS_ERROR_INVALID_ARG;
1.49 + }
1.50 +
1.51 + nsCOMPtr<EventTarget> target = window->GetParentTarget();
1.52 + if (!target) {
1.53 + return NS_ERROR_INVALID_ARG;
1.54 + }
1.55 + EventDispatcher::DispatchDOMEvent(target, nullptr, mEvent,
1.56 + nullptr, nullptr);
1.57 + } else {
1.58 + nsCOMPtr<EventTarget> target = mEventNode.get();
1.59 + bool defaultActionEnabled; // This is not used because the caller is async
1.60 + target->DispatchEvent(mEvent, &defaultActionEnabled);
1.61 + }
1.62 + } else {
1.63 + nsIDocument* doc = mEventNode->OwnerDoc();
1.64 + if (mDispatchChromeOnly) {
1.65 + nsContentUtils::DispatchChromeEvent(doc, mEventNode, mEventType,
1.66 + mBubbles, false);
1.67 + } else {
1.68 + nsContentUtils::DispatchTrustedEvent(doc, mEventNode, mEventType,
1.69 + mBubbles, false);
1.70 + }
1.71 + }
1.72 +
1.73 + return NS_OK;
1.74 +}
1.75 +
1.76 +nsresult
1.77 +AsyncEventDispatcher::PostDOMEvent()
1.78 +{
1.79 + return NS_DispatchToCurrentThread(this);
1.80 +}
1.81 +
1.82 +void
1.83 +AsyncEventDispatcher::RunDOMEventWhenSafe()
1.84 +{
1.85 + nsContentUtils::AddScriptRunner(this);
1.86 +}
1.87 +
1.88 +/******************************************************************************
1.89 + * mozilla::LoadBlockingAsyncEventDispatcher
1.90 + ******************************************************************************/
1.91 +
1.92 +LoadBlockingAsyncEventDispatcher::~LoadBlockingAsyncEventDispatcher()
1.93 +{
1.94 + if (mBlockedDoc) {
1.95 + mBlockedDoc->UnblockOnload(true);
1.96 + }
1.97 +}
1.98 +
1.99 +} // namespace mozilla
