mozilla
/
gecko-dev
зеркало из https://github.com/mozilla/gecko-dev.git
1
0
Форкнуть 0
Код Задачи Пакеты Проекты Релизы Вики Активность
gecko-dev/dom/base/nsInProcessTabChildGlobal.cpp

351 строка
11 KiB
C++
Исходник Ответственный История

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsInProcessTabChildGlobal.h"
#include "nsContentUtils.h"
#include "nsIScriptSecurityManager.h"
#include "nsIInterfaceRequestorUtils.h"
#include "nsIComponentManager.h"
#include "nsIServiceManager.h"
#include "nsComponentManagerUtils.h"
#include "nsScriptLoader.h"
#include "nsFrameLoader.h"
#include "xpcpublic.h"
#include "nsIMozBrowserFrame.h"
#include "nsDOMClassInfoID.h"
#include "mozilla/EventDispatcher.h"
#include "mozilla/dom/SameProcessMessageQueue.h"
using namespace mozilla;
using namespace mozilla::dom;
using namespace mozilla::dom::ipc;
bool
nsInProcessTabChildGlobal::DoSendBlockingMessage(JSContext* aCx,
const nsAString& aMessage,
StructuredCloneData& aData,
JS::Handle<JSObject *> aCpows,
nsIPrincipal* aPrincipal,
nsTArray<StructuredCloneData>* aRetVal,
bool aIsSync)
{
SameProcessMessageQueue* queue = SameProcessMessageQueue::Get();
queue->Flush();
if (mChromeMessageManager) {
SameProcessCpowHolder cpows(js::GetRuntime(aCx), aCpows);
RefPtr<nsFrameMessageManager> mm = mChromeMessageManager;
nsCOMPtr<nsIFrameLoader> fl = GetFrameLoader();
mm->ReceiveMessage(mOwner, fl, aMessage, true, &aData, &cpows, aPrincipal,
aRetVal);
}
return true;
}
class nsAsyncMessageToParent : public nsSameProcessAsyncMessageBase,
public SameProcessMessageQueue::Runnable
{
public:
nsAsyncMessageToParent(JSContext* aCx, JS::Handle<JSObject*> aCpows, nsInProcessTabChildGlobal* aTabChild)
: nsSameProcessAsyncMessageBase(aCx, aCpows)
, mTabChild(aTabChild)
{ }
virtual nsresult HandleMessage() override
{
nsCOMPtr<nsIFrameLoader> fl = mTabChild->GetFrameLoader();
ReceiveMessage(mTabChild->mOwner, fl, mTabChild->mChromeMessageManager);
return NS_OK;
}
RefPtr<nsInProcessTabChildGlobal> mTabChild;
};
nsresult
nsInProcessTabChildGlobal::DoSendAsyncMessage(JSContext* aCx,
const nsAString& aMessage,
StructuredCloneData& aData,
JS::Handle<JSObject *> aCpows,
nsIPrincipal* aPrincipal)
{
SameProcessMessageQueue* queue = SameProcessMessageQueue::Get();
RefPtr<nsAsyncMessageToParent> ev =
new nsAsyncMessageToParent(aCx, aCpows, this);
nsresult rv = ev->Init(aCx, aMessage, aData, aPrincipal);
if (NS_FAILED(rv)) {
return rv;
}
queue->Push(ev);
return NS_OK;
}
nsInProcessTabChildGlobal::nsInProcessTabChildGlobal(nsIDocShell* aShell,
nsIContent* aOwner,
nsFrameMessageManager* aChrome)
: mDocShell(aShell), mInitialized(false), mLoadingScript(false),
mPreventEventsEscaping(false),
mOwner(aOwner), mChromeMessageManager(aChrome)
{
SetIsNotDOMBinding();
mozilla::HoldJSObjects(this);
// If owner corresponds to an <iframe mozbrowser> or <iframe mozapp>, we'll
// have to tweak our PreHandleEvent implementation.
nsCOMPtr<nsIMozBrowserFrame> browserFrame = do_QueryInterface(mOwner);
if (browserFrame) {
mIsBrowserOrAppFrame = browserFrame->GetReallyIsBrowserOrApp();
}
else {
mIsBrowserOrAppFrame = false;
}
}
nsInProcessTabChildGlobal::~nsInProcessTabChildGlobal()
{
mAnonymousGlobalScopes.Clear();
mozilla::DropJSObjects(this);
}
// This method isn't automatically forwarded safely because it's notxpcom, so
// the IDL binding doesn't know what value to return.
NS_IMETHODIMP_(bool)
nsInProcessTabChildGlobal::MarkForCC()
{
MarkScopesForCC();
return mMessageManager ? mMessageManager->MarkForCC() : false;
}
nsresult
nsInProcessTabChildGlobal::Init()
{
#ifdef DEBUG
nsresult rv =
#endif
InitTabChildGlobal();
NS_WARN_IF_FALSE(NS_SUCCEEDED(rv),
"Couldn't initialize nsInProcessTabChildGlobal");
mMessageManager = new nsFrameMessageManager(this,
nullptr,
dom::ipc::MM_CHILD);
return NS_OK;
}
NS_IMPL_CYCLE_COLLECTION_CLASS(nsInProcessTabChildGlobal)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(nsInProcessTabChildGlobal,
DOMEventTargetHelper)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mMessageManager)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mGlobal)
tmp->TraverseHostObjectURIs(cb);
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(nsInProcessTabChildGlobal,
DOMEventTargetHelper)
tmp->nsMessageManagerScriptExecutor::Trace(aCallbacks, aClosure);
NS_IMPL_CYCLE_COLLECTION_TRACE_END
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(nsInProcessTabChildGlobal,
DOMEventTargetHelper)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mMessageManager)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mGlobal)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mAnonymousGlobalScopes)
tmp->UnlinkHostObjectURIs();
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(nsInProcessTabChildGlobal)
NS_INTERFACE_MAP_ENTRY(nsIMessageListenerManager)
NS_INTERFACE_MAP_ENTRY(nsIMessageSender)
NS_INTERFACE_MAP_ENTRY(nsISyncMessageSender)
NS_INTERFACE_MAP_ENTRY(nsIContentFrameMessageManager)
NS_INTERFACE_MAP_ENTRY(nsIInProcessContentFrameMessageManager)
NS_INTERFACE_MAP_ENTRY(nsIScriptObjectPrincipal)
NS_INTERFACE_MAP_ENTRY(nsIGlobalObject)
NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(ContentFrameMessageManager)
NS_INTERFACE_MAP_END_INHERITING(DOMEventTargetHelper)
NS_IMPL_ADDREF_INHERITED(nsInProcessTabChildGlobal, DOMEventTargetHelper)
NS_IMPL_RELEASE_INHERITED(nsInProcessTabChildGlobal, DOMEventTargetHelper)
void
nsInProcessTabChildGlobal::CacheFrameLoader(nsIFrameLoader* aFrameLoader)
{
mFrameLoader = aFrameLoader;
}
NS_IMETHODIMP
nsInProcessTabChildGlobal::GetContent(mozIDOMWindowProxy** aContent)
{
*aContent = nullptr;
if (!mDocShell) {
return NS_OK;
}
nsCOMPtr<nsPIDOMWindowOuter> window = mDocShell->GetWindow();
window.forget(aContent);
return NS_OK;
}
NS_IMETHODIMP
nsInProcessTabChildGlobal::GetDocShell(nsIDocShell** aDocShell)
{
NS_IF_ADDREF(*aDocShell = mDocShell);
return NS_OK;
}
void
nsInProcessTabChildGlobal::FireUnloadEvent()
{
// We're called from nsDocument::MaybeInitializeFinalizeFrameLoaders, so it
// should be safe to run script.
MOZ_ASSERT(nsContentUtils::IsSafeToRunScript());
// Don't let the unload event propagate to chrome event handlers.
mPreventEventsEscaping = true;
DOMEventTargetHelper::DispatchTrustedEvent(NS_LITERAL_STRING("unload"));
// Allow events fired during docshell destruction (pagehide, unload) to
// propagate to the <browser> element since chrome code depends on this.
mPreventEventsEscaping = false;
}
void
nsInProcessTabChildGlobal::DisconnectEventListeners()
{
if (mDocShell) {
if (nsCOMPtr<nsPIDOMWindowOuter> win = mDocShell->GetWindow()) {
MOZ_ASSERT(win->IsOuterWindow());
win->SetChromeEventHandler(win->GetChromeEventHandler());
}
}
if (mListenerManager) {
mListenerManager->Disconnect();
}
mDocShell = nullptr;
}
void
nsInProcessTabChildGlobal::Disconnect()
{
mChromeMessageManager = nullptr;
mOwner = nullptr;
if (mMessageManager) {
static_cast<nsFrameMessageManager*>(mMessageManager.get())->Disconnect();
mMessageManager = nullptr;
}
}
NS_IMETHODIMP_(nsIContent *)
nsInProcessTabChildGlobal::GetOwnerContent()
{
return mOwner;
}
nsresult
nsInProcessTabChildGlobal::PreHandleEvent(EventChainPreVisitor& aVisitor)
{
aVisitor.mForceContentDispatch = true;
aVisitor.mCanHandle = true;
#ifdef DEBUG
if (mOwner) {
nsCOMPtr<nsIFrameLoaderOwner> owner = do_QueryInterface(mOwner);
RefPtr<nsFrameLoader> fl = owner->GetFrameLoader();
if (fl) {
NS_ASSERTION(this == fl->GetTabChildGlobalAsEventTarget(),
"Wrong event target!");
NS_ASSERTION(fl->mMessageManager == mChromeMessageManager,
"Wrong message manager!");
}
}
#endif
if (mPreventEventsEscaping) {
aVisitor.mParentTarget = nullptr;
return NS_OK;
}
if (mIsBrowserOrAppFrame &&
(!mOwner || !nsContentUtils::IsInChromeDocshell(mOwner->OwnerDoc()))) {
if (mOwner) {
if (nsPIDOMWindowInner* innerWindow = mOwner->OwnerDoc()->GetInnerWindow()) {
aVisitor.mParentTarget = innerWindow->GetParentTarget();
}
}
} else {
aVisitor.mParentTarget = mOwner;
}
return NS_OK;
}
nsresult
nsInProcessTabChildGlobal::InitTabChildGlobal()
{
// If you change this, please change GetCompartmentName() in XPCJSRuntime.cpp
// accordingly.
nsAutoCString id;
id.AssignLiteral("inProcessTabChildGlobal");
nsIURI* uri = mOwner->OwnerDoc()->GetDocumentURI();
if (uri) {
nsAutoCString u;
uri->GetSpec(u);
id.AppendLiteral("?ownedBy=");
id.Append(u);
}
nsISupports* scopeSupports = NS_ISUPPORTS_CAST(EventTarget*, this);
NS_ENSURE_STATE(InitChildGlobalInternal(scopeSupports, id));
return NS_OK;
}
class nsAsyncScriptLoad : public Runnable
{
public:
nsAsyncScriptLoad(nsInProcessTabChildGlobal* aTabChild, const nsAString& aURL,
bool aRunInGlobalScope)
: mTabChild(aTabChild), mURL(aURL), mRunInGlobalScope(aRunInGlobalScope) {}
NS_IMETHOD Run()
{
mTabChild->LoadFrameScript(mURL, mRunInGlobalScope);
return NS_OK;
}
RefPtr<nsInProcessTabChildGlobal> mTabChild;
nsString mURL;
bool mRunInGlobalScope;
};
void
nsInProcessTabChildGlobal::LoadFrameScript(const nsAString& aURL, bool aRunInGlobalScope)
{
if (!nsContentUtils::IsSafeToRunScript()) {
nsContentUtils::AddScriptRunner(new nsAsyncScriptLoad(this, aURL, aRunInGlobalScope));
return;
}
if (!mInitialized) {
mInitialized = true;
Init();
}
bool tmp = mLoadingScript;
mLoadingScript = true;
LoadScriptInternal(aURL, aRunInGlobalScope);
mLoadingScript = tmp;
}
already_AddRefed<nsIFrameLoader>
nsInProcessTabChildGlobal::GetFrameLoader()
{
nsCOMPtr<nsIFrameLoaderOwner> owner = do_QueryInterface(mOwner);
nsCOMPtr<nsIFrameLoader> fl = owner ? owner->GetFrameLoader() : nullptr;
if (!fl) {
fl = mFrameLoader;
}
return fl.forget();
}
Ссылка в новой задаче Показать git blame Копировать постоянную ссылку