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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* 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 "Presentation.h"
#include <ctype.h>
#include "mozilla/dom/PresentationBinding.h"
#include "mozilla/dom/Promise.h"
#include "nsContentUtils.h"
#include "nsCycleCollectionParticipant.h"
#include "nsIDocShell.h"
#include "nsIPresentationService.h"
#include "nsIScriptSecurityManager.h"
#include "nsJSUtils.h"
#include "nsNetUtil.h"
#include "nsPIDOMWindow.h"
#include "nsSandboxFlags.h"
#include "nsServiceManagerUtils.h"
#include "PresentationReceiver.h"
namespace mozilla {
namespace dom {
NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(Presentation,
mWindow,
mDefaultRequest, mReceiver)
NS_IMPL_CYCLE_COLLECTING_ADDREF(Presentation)
NS_IMPL_CYCLE_COLLECTING_RELEASE(Presentation)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(Presentation)
NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_END
/* static */ already_AddRefed<Presentation>
Presentation::Create(nsPIDOMWindowInner* aWindow)
{
RefPtr<Presentation> presentation = new Presentation(aWindow);
return presentation.forget();
}
Presentation::Presentation(nsPIDOMWindowInner* aWindow)
: mWindow(aWindow)
{
}
Presentation::~Presentation()
{
}
/* virtual */ JSObject*
Presentation::WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto)
{
return PresentationBinding::Wrap(aCx, this, aGivenProto);
}
void
Presentation::SetDefaultRequest(PresentationRequest* aRequest)
{
nsCOMPtr<nsIDocument> doc = mWindow ? mWindow->GetExtantDoc() : nullptr;
if (NS_WARN_IF(!doc)) {
return;
}
if (doc->GetSandboxFlags() & SANDBOXED_PRESENTATION) {
return;
}
mDefaultRequest = aRequest;
}
already_AddRefed<PresentationRequest>
Presentation::GetDefaultRequest() const
{
RefPtr<PresentationRequest> request = mDefaultRequest;
return request.forget();
}
already_AddRefed<PresentationReceiver>
Presentation::GetReceiver()
{
// return the same receiver if already created
if (mReceiver) {
RefPtr<PresentationReceiver> receiver = mReceiver;
return receiver.forget();
}
if (!HasReceiverSupport() || !IsInPresentedContent()) {
return nullptr;
}
mReceiver = PresentationReceiver::Create(mWindow);
if (NS_WARN_IF(!mReceiver)) {
MOZ_ASSERT(mReceiver);
return nullptr;
}
RefPtr<PresentationReceiver> receiver = mReceiver;
return receiver.forget();
}
void
Presentation::SetStartSessionUnsettled(bool aIsUnsettled)
{
mStartSessionUnsettled = aIsUnsettled;
}
bool
Presentation::IsStartSessionUnsettled() const
{
return mStartSessionUnsettled;
}
bool
Presentation::HasReceiverSupport() const
{
if (!mWindow) {
return false;
}
// Grant access to browser receiving pages and their same-origin iframes. (App
// pages should be controlled by "presentation" permission in app manifests.)
nsCOMPtr<nsIDocShell> docShell = mWindow->GetDocShell();
if (!docShell) {
return false;
}
if (!Preferences::GetBool("dom.presentation.testing.simulate-receiver") &&
!docShell->GetIsInMozBrowserOrApp() &&
!docShell->GetIsTopLevelContentDocShell()) {
return false;
}
nsAutoString presentationURL;
nsContentUtils::GetPresentationURL(docShell, presentationURL);
if (presentationURL.IsEmpty()) {
return false;
}
nsCOMPtr<nsIScriptSecurityManager> securityManager =
nsContentUtils::GetSecurityManager();
if (!securityManager) {
return false;
}
nsCOMPtr<nsIURI> presentationURI;
nsresult rv = NS_NewURI(getter_AddRefs(presentationURI), presentationURL);
if (NS_FAILED(rv)) {
return false;
}
nsCOMPtr<nsIURI> docURI = mWindow->GetDocumentURI();
return NS_SUCCEEDED(securityManager->CheckSameOriginURI(presentationURI,
docURI,
false));
}
bool
Presentation::IsInPresentedContent() const
{
if (!mWindow) {
return false;
}
nsCOMPtr<nsIDocShell> docShell = mWindow->GetDocShell();
MOZ_ASSERT(docShell);
nsAutoString presentationURL;
nsContentUtils::GetPresentationURL(docShell, presentationURL);
return !presentationURL.IsEmpty();
}
} // namespace dom
} // namespace mozilla
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