mirror of
https://github.com/classilla/tenfourfox.git
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172 lines
4.9 KiB
C++
172 lines
4.9 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/PresentationRequestBinding.h"
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#include "mozilla/dom/PresentationConnectionAvailableEvent.h"
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#include "mozilla/dom/Promise.h"
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#include "mozIThirdPartyUtil.h"
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#include "nsCycleCollectionParticipant.h"
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#include "nsIPresentationService.h"
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#include "nsIUUIDGenerator.h"
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#include "nsServiceManagerUtils.h"
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#include "PresentationAvailability.h"
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#include "PresentationCallbacks.h"
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#include "PresentationRequest.h"
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using namespace mozilla;
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using namespace mozilla::dom;
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NS_IMPL_CYCLE_COLLECTION_INHERITED(PresentationRequest, DOMEventTargetHelper,
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mAvailability)
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NS_IMPL_ADDREF_INHERITED(PresentationRequest, DOMEventTargetHelper)
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NS_IMPL_RELEASE_INHERITED(PresentationRequest, DOMEventTargetHelper)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(PresentationRequest)
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NS_INTERFACE_MAP_END_INHERITING(DOMEventTargetHelper)
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/* static */ already_AddRefed<PresentationRequest>
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PresentationRequest::Constructor(const GlobalObject& aGlobal,
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const nsAString& aUrl,
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ErrorResult& aRv)
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{
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nsCOMPtr<nsPIDOMWindow> window = do_QueryInterface(aGlobal.GetAsSupports());
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if (!window) {
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aRv.Throw(NS_ERROR_UNEXPECTED);
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return nullptr;
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}
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// Ensure the URL is not empty.
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if (NS_WARN_IF(aUrl.IsEmpty())) {
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aRv.Throw(NS_ERROR_DOM_SYNTAX_ERR);
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return nullptr;
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}
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RefPtr<PresentationRequest> request = new PresentationRequest(window, aUrl);
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return NS_WARN_IF(!request->Init()) ? nullptr : request.forget();
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}
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PresentationRequest::PresentationRequest(nsPIDOMWindow* aWindow,
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const nsAString& aUrl)
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: DOMEventTargetHelper(aWindow)
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, mUrl(aUrl)
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{
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}
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PresentationRequest::~PresentationRequest()
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{
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}
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bool
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PresentationRequest::Init()
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{
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mAvailability = PresentationAvailability::Create(GetOwner());
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if (NS_WARN_IF(!mAvailability)) {
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return false;
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}
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return true;
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}
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/* virtual */ JSObject*
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PresentationRequest::WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto)
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{
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return PresentationRequestBinding::Wrap(aCx, this, aGivenProto);
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}
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already_AddRefed<Promise>
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PresentationRequest::Start(ErrorResult& aRv)
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{
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nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(GetOwner());
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if (NS_WARN_IF(!global)) {
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aRv.Throw(NS_ERROR_UNEXPECTED);
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return nullptr;
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}
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// Get the origin.
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nsAutoString origin;
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nsresult rv = nsContentUtils::GetUTFOrigin(global->PrincipalOrNull(), origin);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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aRv.Throw(rv);
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return nullptr;
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}
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RefPtr<Promise> promise = Promise::Create(global, aRv);
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if (NS_WARN_IF(aRv.Failed())) {
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return nullptr;
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}
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// Generate a session ID.
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nsCOMPtr<nsIUUIDGenerator> uuidgen =
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do_GetService("@mozilla.org/uuid-generator;1");
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if(NS_WARN_IF(!uuidgen)) {
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promise->MaybeReject(NS_ERROR_DOM_OPERATION_ERR);
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return promise.forget();
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}
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nsID uuid;
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uuidgen->GenerateUUIDInPlace(&uuid);
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char buffer[NSID_LENGTH];
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uuid.ToProvidedString(buffer);
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nsAutoString id;
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CopyASCIItoUTF16(buffer, id);
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nsCOMPtr<nsIPresentationService> service =
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do_GetService(PRESENTATION_SERVICE_CONTRACTID);
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if(NS_WARN_IF(!service)) {
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promise->MaybeReject(NS_ERROR_DOM_OPERATION_ERR);
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return promise.forget();
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}
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nsCOMPtr<nsIPresentationServiceCallback> callback =
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new PresentationRequesterCallback(this, mUrl, id, promise);
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rv = service->StartSession(mUrl, id, origin, callback);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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promise->MaybeReject(NS_ERROR_DOM_OPERATION_ERR);
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}
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return promise.forget();
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}
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already_AddRefed<Promise>
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PresentationRequest::GetAvailability(ErrorResult& aRv)
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{
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nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(GetOwner());
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if (NS_WARN_IF(!global)) {
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aRv.Throw(NS_ERROR_UNEXPECTED);
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return nullptr;
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}
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RefPtr<Promise> promise = Promise::Create(global, aRv);
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if (NS_WARN_IF(aRv.Failed())) {
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return nullptr;
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}
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promise->MaybeResolve(mAvailability);
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return promise.forget();
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}
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nsresult
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PresentationRequest::DispatchConnectionAvailableEvent(PresentationConnection* aConnection)
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{
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PresentationConnectionAvailableEventInit init;
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init.mConnection = aConnection;
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RefPtr<PresentationConnectionAvailableEvent> event =
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PresentationConnectionAvailableEvent::Constructor(this,
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NS_LITERAL_STRING("connectionavailable"),
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init);
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if (NS_WARN_IF(!event)) {
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return NS_ERROR_FAILURE;
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}
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event->SetTrusted(true);
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RefPtr<AsyncEventDispatcher> asyncDispatcher =
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new AsyncEventDispatcher(this, event);
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return asyncDispatcher->PostDOMEvent();
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}
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