зеркало из https://github.com/mozilla/gecko-dev.git
126 строки
4.0 KiB
C++
126 строки
4.0 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/dom/JSWindowActorBinding.h"
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#include "mozilla/dom/JSWindowActorParent.h"
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#include "mozilla/dom/BrowserParent.h"
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#include "mozilla/dom/ContentParent.h"
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#include "mozilla/dom/WindowGlobalChild.h"
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#include "mozilla/dom/WindowGlobalParent.h"
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#include "mozilla/dom/MessageManagerBinding.h"
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namespace mozilla::dom {
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JSWindowActorParent::~JSWindowActorParent() { MOZ_ASSERT(!mManager); }
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JSObject* JSWindowActorParent::WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) {
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return JSWindowActorParent_Binding::Wrap(aCx, this, aGivenProto);
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}
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WindowGlobalParent* JSWindowActorParent::GetManager() const { return mManager; }
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WindowContext* JSWindowActorParent::GetWindowContext() const {
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return mManager;
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}
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void JSWindowActorParent::Init(const nsACString& aName,
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WindowGlobalParent* aManager) {
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MOZ_ASSERT(!mManager, "Cannot Init() a JSWindowActorParent twice!");
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SetName(aName);
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mManager = aManager;
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InvokeCallback(CallbackFunction::ActorCreated);
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}
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void JSWindowActorParent::SendRawMessage(
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const JSActorMessageMeta& aMeta, Maybe<ipc::StructuredCloneData>&& aData,
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Maybe<ipc::StructuredCloneData>&& aStack, ErrorResult& aRv) {
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if (NS_WARN_IF(!CanSend() || !mManager || !mManager->CanSend())) {
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aRv.ThrowInvalidStateError("JSWindowActorParent cannot send at the moment");
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return;
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}
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if (mManager->IsInProcess()) {
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SendRawMessageInProcess(
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aMeta, std::move(aData), std::move(aStack),
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[manager{mManager}]() { return manager->GetChildActor(); });
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return;
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}
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size_t length = 0;
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if (aData) {
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length += aData->DataLength();
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}
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if (aStack) {
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length += aStack->DataLength();
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}
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if (NS_WARN_IF(!AllowMessage(aMeta, length))) {
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aRv.ThrowDataCloneError(
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nsPrintfCString("JSWindowActorParent serialization error: data too "
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"large, in actor '%s'",
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PromiseFlatCString(aMeta.actorName()).get()));
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return;
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}
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// Cross-process case - send data over WindowGlobalParent to other side.
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RefPtr<BrowserParent> browserParent = mManager->GetBrowserParent();
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ContentParent* cp = browserParent->Manager();
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Maybe<ClonedMessageData> msgData;
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if (aData) {
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msgData.emplace();
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if (NS_WARN_IF(!aData->BuildClonedMessageDataForParent(cp, *msgData))) {
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aRv.ThrowDataCloneError(
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nsPrintfCString("JSWindowActorParent serialization error: cannot "
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"clone, in actor '%s'",
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PromiseFlatCString(aMeta.actorName()).get()));
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return;
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}
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}
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Maybe<ClonedMessageData> stackData;
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if (aStack) {
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stackData.emplace();
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if (!aStack->BuildClonedMessageDataForParent(cp, *stackData)) {
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stackData.reset();
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}
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}
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if (NS_WARN_IF(!mManager->SendRawMessage(aMeta, msgData, stackData))) {
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aRv.ThrowOperationError(
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nsPrintfCString("JSWindowActorParent send error in actor '%s'",
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PromiseFlatCString(aMeta.actorName()).get()));
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return;
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}
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}
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CanonicalBrowsingContext* JSWindowActorParent::GetBrowsingContext(
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ErrorResult& aRv) {
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if (!mManager) {
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aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
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return nullptr;
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}
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return mManager->BrowsingContext();
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}
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void JSWindowActorParent::ClearManager() { mManager = nullptr; }
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NS_IMPL_CYCLE_COLLECTION_INHERITED(JSWindowActorParent, JSActor, mManager)
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NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(JSWindowActorParent, JSActor)
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NS_IMPL_CYCLE_COLLECTION_TRACE_END
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(JSWindowActorParent)
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NS_INTERFACE_MAP_END_INHERITING(JSActor)
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NS_IMPL_ADDREF_INHERITED(JSWindowActorParent, JSActor)
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NS_IMPL_RELEASE_INHERITED(JSWindowActorParent, JSActor)
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} // namespace mozilla::dom
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