ContentParent* CanonicalBrowsingContext::GetContentParent() const {
if (mProcessId == 0) {
return nullptr;
}
ContentProcessManager* cpm = ContentProcessManager::GetSingleton();
return cpm->GetContentProcessById(ContentParentId(mProcessId));
}
bool
ScreenManagerParent::RecvScreenForBrowser(const TabId& aTabId,
ScreenDetails* aRetVal,
bool* aSuccess)
{
*aSuccess = false;
#ifdef MOZ_VALGRIND
// Zero this so that Valgrind doesn't complain when we send it to another
// process.
memset(aRetVal, 0, sizeof(ScreenDetails));
#endif
// Find the mWidget associated with the tabparent, and then return
// the nsIScreen it's on.
ContentParent* cp = static_cast<ContentParent*>(this->Manager());
ContentProcessManager* cpm = ContentProcessManager::GetSingleton();
nsRefPtr<TabParent> tabParent =
cpm->GetTopLevelTabParentByProcessAndTabId(cp->ChildID(), aTabId);
if(!tabParent){
return false;
}
nsCOMPtr<nsIWidget> widget = tabParent->GetWidget();
nsCOMPtr<nsIScreen> screen;
if (widget) {
if (widget->GetNativeData(NS_NATIVE_WINDOW)) {
mScreenMgr->ScreenForNativeWidget(widget->GetNativeData(NS_NATIVE_WINDOW),
getter_AddRefs(screen));
}
} else {
nsresult rv = mScreenMgr->GetPrimaryScreen(getter_AddRefs(screen));
if (NS_WARN_IF(NS_FAILED(rv))) {
return true;
}
}
NS_ENSURE_TRUE(screen, true);
ScreenDetails details;
if (!ExtractScreenDetails(screen, details)) {
return true;
}
*aRetVal = details;
*aSuccess = true;
return true;
}
nsresult
PresentationRequestParent::DoRequest(const StartSessionRequest& aRequest)
{
MOZ_ASSERT(mService);
mNeedRegisterBuilder = true;
mSessionId = aRequest.sessionId();
nsCOMPtr<nsIDOMEventTarget> eventTarget;
ContentProcessManager* cpm = ContentProcessManager::GetSingleton();
RefPtr<TabParent> tp =
cpm->GetTopLevelTabParentByProcessAndTabId(mChildId, aRequest.tabId());
if (tp) {
eventTarget = do_QueryInterface(tp->GetOwnerElement());
}
return mService->StartSession(aRequest.urls(), aRequest.sessionId(),
aRequest.origin(), aRequest.deviceId(),
aRequest.windowId(), eventTarget, this);
}
nsresult
PresentationRequestParent::DoRequest(const StartSessionRequest& aRequest)
{
MOZ_ASSERT(mService);
mSessionId = aRequest.sessionId();
nsCOMPtr<nsIDOMEventTarget> eventTarget;
ContentProcessManager* cpm = ContentProcessManager::GetSingleton();
RefPtr<TabParent> tp =
cpm->GetTopLevelTabParentByProcessAndTabId(mChildId, aRequest.tabId());
if (tp) {
eventTarget = do_QueryInterface(tp->GetOwnerElement());
}
RefPtr<PresentationParent> parent = static_cast<PresentationParent*>(Manager());
nsCOMPtr<nsIPresentationTransportBuilderConstructor> constructor =
new PresentationTransportBuilderConstructorIPC(parent);
return mService->StartSession(aRequest.urls(), aRequest.sessionId(),
aRequest.origin(), aRequest.deviceId(),
aRequest.windowId(), eventTarget,
aRequest.principal(), this, constructor);
}
PBrowserParent*
nsIContentParent::AllocPBrowserParent(const TabId& aTabId,
const TabId& aSameTabGroupAs,
const IPCTabContext& aContext,
const uint32_t& aChromeFlags,
const ContentParentId& aCpId,
const bool& aIsForBrowser)
{
MOZ_ASSERT(!aSameTabGroupAs);
Unused << aCpId;
Unused << aIsForBrowser;
if (!CanOpenBrowser(aContext)) {
return nullptr;
}
uint32_t chromeFlags = aChromeFlags;
TabId openerTabId(0);
ContentParentId openerCpId(0);
if (aContext.type() == IPCTabContext::TPopupIPCTabContext) {
// CanOpenBrowser has ensured that the IPCTabContext is of
// type PopupIPCTabContext, and that the opener TabParent is
// reachable.
const PopupIPCTabContext& popupContext = aContext.get_PopupIPCTabContext();
auto opener = TabParent::GetFrom(popupContext.opener().get_PBrowserParent());
openerTabId = opener->GetTabId();
openerCpId = opener->Manager()->ChildID();
// We must ensure that the private browsing and remoteness flags
// match those of the opener.
nsCOMPtr<nsILoadContext> loadContext = opener->GetLoadContext();
if (!loadContext) {
return nullptr;
}
bool isPrivate;
loadContext->GetUsePrivateBrowsing(&isPrivate);
if (isPrivate) {
chromeFlags |= nsIWebBrowserChrome::CHROME_PRIVATE_WINDOW;
}
}
if (openerTabId > 0 ||
aContext.type() == IPCTabContext::TUnsafeIPCTabContext) {
// Creation of PBrowser triggered from grandchild process is currently
// broken and not supported (i.e. this code path doesn't work in
// ContentBridgeParent).
//
// If you're working on fixing the code path for ContentBridgeParent,
// remember to handle the remote frame registration below carefully as it
// has to be registered in parent process.
MOZ_ASSERT(XRE_IsParentProcess());
if (!XRE_IsParentProcess()) {
return nullptr;
}
// The creation of PBrowser was triggered from content process through
// either window.open() or service worker's openWindow().
// We need to register remote frame with the child generated tab id.
ContentProcessManager* cpm = ContentProcessManager::GetSingleton();
if (!cpm->RegisterRemoteFrame(aTabId, openerCpId, openerTabId, aContext, aCpId)) {
return nullptr;
}
}
// And because we're allocating a remote browser, of course the
// window is remote.
chromeFlags |= nsIWebBrowserChrome::CHROME_REMOTE_WINDOW;
MaybeInvalidTabContext tc(aContext);
MOZ_ASSERT(tc.IsValid());
TabParent* parent = new TabParent(this, aTabId, tc.GetTabContext(), chromeFlags);
// We release this ref in DeallocPBrowserParent()
NS_ADDREF(parent);
return parent;
}