mirror of
https://github.com/mozilla/gecko-dev.git
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129 lines
4.2 KiB
C++
129 lines
4.2 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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "ContentProcessMessageManager.h"
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#include "mozilla/dom/ContentChild.h"
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#include "mozilla/dom/MessageManagerBinding.h"
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#include "mozilla/dom/ParentProcessMessageManager.h"
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#include "mozilla/dom/ScriptSettings.h"
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#include "mozilla/dom/ipc/SharedMap.h"
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#include "mozilla/HoldDropJSObjects.h"
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using namespace mozilla;
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using namespace mozilla::dom;
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bool ContentProcessMessageManager::sWasCreated = false;
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ContentProcessMessageManager::ContentProcessMessageManager(
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nsFrameMessageManager* aMessageManager)
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: MessageManagerGlobal(aMessageManager), mInitialized(false) {
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mozilla::HoldJSObjects(this);
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}
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ContentProcessMessageManager::~ContentProcessMessageManager() {
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mozilla::DropJSObjects(this);
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}
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ContentProcessMessageManager* ContentProcessMessageManager::Get() {
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nsCOMPtr<nsIMessageSender> service =
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do_GetService("@mozilla.org/childprocessmessagemanager;1");
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if (!service) {
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return nullptr;
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}
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sWasCreated = true;
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return static_cast<ContentProcessMessageManager*>(service.get());
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}
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already_AddRefed<mozilla::dom::ipc::SharedMap>
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ContentProcessMessageManager::GetSharedData() {
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if (ContentChild* child = ContentChild::GetSingleton()) {
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return do_AddRef(child->SharedData());
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}
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auto* ppmm = nsFrameMessageManager::sParentProcessManager;
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return do_AddRef(ppmm->SharedData()->GetReadOnly());
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}
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bool ContentProcessMessageManager::WasCreated() { return sWasCreated; }
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void ContentProcessMessageManager::MarkForCC() {
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MarkScopesForCC();
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MessageManagerGlobal::MarkForCC();
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}
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NS_IMPL_CYCLE_COLLECTION_CLASS(ContentProcessMessageManager)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(ContentProcessMessageManager)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mMessageManager)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
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NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(ContentProcessMessageManager)
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NS_IMPL_CYCLE_COLLECTION_TRACE_PRESERVED_WRAPPER
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tmp->nsMessageManagerScriptExecutor::Trace(aCallbacks, aClosure);
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NS_IMPL_CYCLE_COLLECTION_TRACE_END
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NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(ContentProcessMessageManager)
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NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER
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NS_IMPL_CYCLE_COLLECTION_UNLINK(mMessageManager)
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tmp->nsMessageManagerScriptExecutor::Unlink();
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NS_IMPL_CYCLE_COLLECTION_UNLINK_WEAK_REFERENCE
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NS_IMPL_CYCLE_COLLECTION_UNLINK_END
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(ContentProcessMessageManager)
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NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
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NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIMessageSender)
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NS_INTERFACE_MAP_ENTRY(nsIMessageSender)
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NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
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NS_INTERFACE_MAP_END
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NS_IMPL_CYCLE_COLLECTING_ADDREF(ContentProcessMessageManager)
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NS_IMPL_CYCLE_COLLECTING_RELEASE(ContentProcessMessageManager)
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bool ContentProcessMessageManager::Init() {
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if (mInitialized) {
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return true;
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}
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mInitialized = true;
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return nsMessageManagerScriptExecutor::Init();
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}
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JSObject* ContentProcessMessageManager::WrapObject(
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JSContext* aCx, JS::Handle<JSObject*> aGivenProto) {
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return ContentProcessMessageManager_Binding::Wrap(aCx, this, aGivenProto);
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}
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JSObject* ContentProcessMessageManager::GetOrCreateWrapper() {
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JS::Rooted<JS::Value> val(RootingCx());
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{
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// Scope to run ~AutoJSAPI before working with a raw JSObject*.
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AutoJSAPI jsapi;
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jsapi.Init();
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if (!GetOrCreateDOMReflectorNoWrap(jsapi.cx(), this, &val)) {
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JS_ClearPendingException(jsapi.cx());
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return nullptr;
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}
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}
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MOZ_ASSERT(val.isObject());
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return &val.toObject();
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}
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bool ContentProcessMessageManager::LoadScript(const nsAString& aURL) {
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Init();
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JSObject* wrapper = GetOrCreateWrapper();
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if (wrapper) {
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JS::Rooted<JSObject*> messageManager(mozilla::dom::RootingCx(), wrapper);
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LoadScriptInternal(messageManager, aURL, true);
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return true;
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}
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return false;
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}
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void ContentProcessMessageManager::SetInitialProcessData(
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JS::Handle<JS::Value> aInitialData) {
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mMessageManager->SetInitialProcessData(aInitialData);
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}
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