Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2             : /* vim: set ts=8 sts=2 et sw=2 tw=80: */
       3             : /* This Source Code Form is subject to the terms of the Mozilla Public
       4             :  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
       5             :  * You can obtain one at http://mozilla.org/MPL/2.0/. */
       6             : 
       7             : #include "ServiceWorker.h"
       8             : 
       9             : #include "nsIDocument.h"
      10             : #include "nsPIDOMWindow.h"
      11             : #include "ServiceWorkerClient.h"
      12             : #include "ServiceWorkerManager.h"
      13             : #include "ServiceWorkerPrivate.h"
      14             : #include "WorkerPrivate.h"
      15             : 
      16             : #include "mozilla/Preferences.h"
      17             : #include "mozilla/dom/Promise.h"
      18             : #include "mozilla/dom/ServiceWorkerGlobalScopeBinding.h"
      19             : 
      20             : #ifdef XP_WIN
      21             : #undef PostMessage
      22             : #endif
      23             : 
      24             : using mozilla::ErrorResult;
      25             : using namespace mozilla::dom;
      26             : 
      27             : namespace mozilla {
      28             : namespace dom {
      29             : namespace workers {
      30             : 
      31             : bool
      32           1 : ServiceWorkerVisible(JSContext* aCx, JSObject* aObj)
      33             : {
      34           1 :   if (NS_IsMainThread()) {
      35           0 :     return Preferences::GetBool("dom.serviceWorkers.enabled", false);
      36             :   }
      37             : 
      38           1 :   return IS_INSTANCE_OF(ServiceWorkerGlobalScope, aObj);
      39             : }
      40             : 
      41           0 : ServiceWorker::ServiceWorker(nsPIDOMWindowInner* aWindow,
      42           0 :                              ServiceWorkerInfo* aInfo)
      43             :   : DOMEventTargetHelper(aWindow),
      44           0 :     mInfo(aInfo)
      45             : {
      46           0 :   AssertIsOnMainThread();
      47           0 :   MOZ_ASSERT(aInfo);
      48             : 
      49             :   // This will update our state too.
      50           0 :   mInfo->AppendWorker(this);
      51           0 : }
      52             : 
      53           0 : ServiceWorker::~ServiceWorker()
      54             : {
      55           0 :   AssertIsOnMainThread();
      56           0 :   mInfo->RemoveWorker(this);
      57           0 : }
      58             : 
      59           0 : NS_IMPL_ADDREF_INHERITED(ServiceWorker, DOMEventTargetHelper)
      60           0 : NS_IMPL_RELEASE_INHERITED(ServiceWorker, DOMEventTargetHelper)
      61             : 
      62           0 : NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(ServiceWorker)
      63           0 : NS_INTERFACE_MAP_END_INHERITING(DOMEventTargetHelper)
      64             : 
      65             : JSObject*
      66           0 : ServiceWorker::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
      67             : {
      68           0 :   AssertIsOnMainThread();
      69             : 
      70           0 :   return ServiceWorkerBinding::Wrap(aCx, this, aGivenProto);
      71             : }
      72             : 
      73             : void
      74           0 : ServiceWorker::GetScriptURL(nsString& aURL) const
      75             : {
      76           0 :   CopyUTF8toUTF16(mInfo->ScriptSpec(), aURL);
      77           0 : }
      78             : 
      79             : void
      80           0 : ServiceWorker::PostMessage(JSContext* aCx, JS::Handle<JS::Value> aMessage,
      81             :                            const Sequence<JSObject*>& aTransferable,
      82             :                            ErrorResult& aRv)
      83             : {
      84           0 :   if (State() == ServiceWorkerState::Redundant) {
      85           0 :     aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
      86           0 :     return;
      87             :   }
      88             : 
      89           0 :   nsCOMPtr<nsPIDOMWindowInner> window = do_QueryInterface(GetParentObject());
      90           0 :   if (!window || !window->GetExtantDoc()) {
      91           0 :     NS_WARNING("Trying to call post message from an invalid dom object.");
      92           0 :     aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
      93           0 :     return;
      94             :   }
      95             : 
      96           0 :   UniquePtr<ServiceWorkerClientInfo> clientInfo(new ServiceWorkerClientInfo(window->GetExtantDoc()));
      97           0 :   ServiceWorkerPrivate* workerPrivate = mInfo->WorkerPrivate();
      98           0 :   aRv = workerPrivate->SendMessageEvent(aCx, aMessage, aTransferable, Move(clientInfo));
      99             : }
     100             : 
     101             : } // namespace workers
     102             : } // namespace dom
     103             : } // namespace mozilla