зеркало из https://github.com/mozilla/gecko-dev.git
150 строки
4.4 KiB
C++
150 строки
4.4 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/dom/WebAuthnManagerBase.h"
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#include "mozilla/dom/WebAuthnTransactionChild.h"
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#include "mozilla/dom/Event.h"
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#include "nsGlobalWindowInner.h"
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#include "nsPIWindowRoot.h"
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namespace mozilla {
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namespace dom {
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NS_NAMED_LITERAL_STRING(kDeactivateEvent, "deactivate");
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NS_NAMED_LITERAL_STRING(kVisibilityChange, "visibilitychange");
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WebAuthnManagerBase::WebAuthnManagerBase(nsPIDOMWindowInner* aParent)
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: mParent(aParent) {
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MOZ_ASSERT(NS_IsMainThread());
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MOZ_ASSERT(aParent);
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}
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WebAuthnManagerBase::~WebAuthnManagerBase() { MOZ_ASSERT(NS_IsMainThread()); }
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(WebAuthnManagerBase)
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NS_INTERFACE_MAP_ENTRY(nsISupports)
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NS_INTERFACE_MAP_ENTRY(nsIDOMEventListener)
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NS_INTERFACE_MAP_END
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NS_IMPL_CYCLE_COLLECTION(WebAuthnManagerBase, mParent)
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NS_IMPL_CYCLE_COLLECTING_ADDREF(WebAuthnManagerBase)
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NS_IMPL_CYCLE_COLLECTING_RELEASE(WebAuthnManagerBase)
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/***********************************************************************
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* IPC Protocol Implementation
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**********************************************************************/
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bool WebAuthnManagerBase::MaybeCreateBackgroundActor() {
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MOZ_ASSERT(NS_IsMainThread());
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if (mChild) {
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return true;
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}
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PBackgroundChild* actorChild = BackgroundChild::GetOrCreateForCurrentThread();
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if (NS_WARN_IF(!actorChild)) {
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return false;
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}
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RefPtr<WebAuthnTransactionChild> mgr(new WebAuthnTransactionChild(this));
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PWebAuthnTransactionChild* constructedMgr =
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actorChild->SendPWebAuthnTransactionConstructor(mgr);
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if (NS_WARN_IF(!constructedMgr)) {
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return false;
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}
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MOZ_ASSERT(constructedMgr == mgr);
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mChild = std::move(mgr);
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return true;
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}
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void WebAuthnManagerBase::ActorDestroyed() {
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MOZ_ASSERT(NS_IsMainThread());
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mChild = nullptr;
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}
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/***********************************************************************
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* Event Handling
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**********************************************************************/
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void WebAuthnManagerBase::ListenForVisibilityEvents() {
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MOZ_ASSERT(NS_IsMainThread());
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nsCOMPtr<nsPIDOMWindowOuter> outer = mParent->GetOuterWindow();
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if (NS_WARN_IF(!outer)) {
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return;
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}
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nsCOMPtr<EventTarget> windowRoot = outer->GetTopWindowRoot();
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if (NS_WARN_IF(!windowRoot)) {
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return;
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}
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nsresult rv = windowRoot->AddEventListener(kDeactivateEvent, this,
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/* use capture */ true,
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/* wants untrusted */ false);
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Unused << NS_WARN_IF(NS_FAILED(rv));
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rv = windowRoot->AddEventListener(kVisibilityChange, this,
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/* use capture */ true,
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/* wants untrusted */ false);
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Unused << NS_WARN_IF(NS_FAILED(rv));
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}
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void WebAuthnManagerBase::StopListeningForVisibilityEvents() {
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MOZ_ASSERT(NS_IsMainThread());
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nsCOMPtr<nsPIDOMWindowOuter> outer = mParent->GetOuterWindow();
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if (NS_WARN_IF(!outer)) {
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return;
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}
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nsCOMPtr<EventTarget> windowRoot = outer->GetTopWindowRoot();
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if (NS_WARN_IF(!windowRoot)) {
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return;
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}
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windowRoot->RemoveEventListener(kDeactivateEvent, this,
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/* use capture */ true);
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windowRoot->RemoveEventListener(kVisibilityChange, this,
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/* use capture */ true);
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}
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NS_IMETHODIMP
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WebAuthnManagerBase::HandleEvent(Event* aEvent) {
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MOZ_ASSERT(NS_IsMainThread());
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MOZ_ASSERT(aEvent);
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nsAutoString type;
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aEvent->GetType(type);
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if (!type.Equals(kDeactivateEvent) && !type.Equals(kVisibilityChange)) {
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return NS_ERROR_FAILURE;
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}
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// The "deactivate" event on the root window has no
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// "current inner window" and thus GetTarget() is always null.
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if (type.Equals(kVisibilityChange)) {
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nsCOMPtr<Document> doc = do_QueryInterface(aEvent->GetTarget());
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if (NS_WARN_IF(!doc) || !doc->Hidden()) {
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return NS_OK;
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}
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nsGlobalWindowInner* win = nsGlobalWindowInner::Cast(doc->GetInnerWindow());
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if (NS_WARN_IF(!win) || !win->IsTopInnerWindow()) {
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return NS_OK;
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}
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}
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HandleVisibilityChange();
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return NS_OK;
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}
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} // namespace dom
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} // namespace mozilla
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