tor-browser

The Tor Browser
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Worklet.h (2376B)

      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
      5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      6 
      7 #ifndef mozilla_dom_Worklet_h
      8 #define mozilla_dom_Worklet_h
      9 
     10 #include "nsCOMPtr.h"
     11 #include "nsRefPtrHashtable.h"
     12 #include "nsWrapperCache.h"
     13 
     14 class nsPIDOMWindowInner;
     15 
     16 namespace mozilla {
     17 
     18 class ErrorResult;
     19 class WorkletImpl;
     20 
     21 namespace dom {
     22 
     23 class Promise;
     24 class WorkletFetchHandler;
     25 class WorkletScriptHandler;
     26 struct WorkletOptions;
     27 enum class CallerType : uint32_t;
     28 
     29 class Worklet : public nsISupports, public nsWrapperCache {
     30 public:
     31  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
     32  NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(Worklet)
     33 
     34  // |aOwnedObject| may be provided by the WorkletImpl as a parent thread
     35  // object to keep alive and traverse for CC as long as the Worklet has
     36  // references remaining.
     37  Worklet(nsPIDOMWindowInner* aWindow, RefPtr<WorkletImpl> aImpl,
     38          nsISupports* aOwnedObject = nullptr);
     39 
     40  nsPIDOMWindowInner* GetParentObject() const { return mWindow; }
     41 
     42  virtual JSObject* WrapObject(JSContext* aCx,
     43                               JS::Handle<JSObject*> aGivenProto) override;
     44 
     45  already_AddRefed<Promise> AddModule(JSContext* aCx,
     46                                      const nsAString& aModuleURL,
     47                                      const WorkletOptions& aOptions,
     48                                      CallerType aCallerType, ErrorResult& aRv);
     49 
     50  WorkletImpl* Impl() const { return mImpl; }
     51 
     52  const nsTArray<nsString>& GetLocalizedStrings() const {
     53    return mLocalizedStrings;
     54  }
     55 
     56 protected:
     57  virtual ~Worklet();
     58 
     59 private:
     60  WorkletFetchHandler* GetImportFetchHandler(const nsACString& aURI);
     61 
     62  void AddImportFetchHandler(const nsACString& aURI,
     63                             WorkletFetchHandler* aHandler);
     64 
     65  nsCOMPtr<nsPIDOMWindowInner> mWindow;
     66  nsCOMPtr<nsISupports> mOwnedObject;
     67 
     68  nsRefPtrHashtable<nsCStringHashKey, WorkletFetchHandler> mImportHandlers;
     69 
     70  const RefPtr<WorkletImpl> mImpl;
     71 
     72  nsTArray<nsString> mLocalizedStrings;
     73 
     74  friend class WorkletFetchHandler;
     75  friend class WorkletScriptHandler;
     76 };
     77 
     78 }  // namespace dom
     79 }  // namespace mozilla
     80 
     81 #endif  // mozilla_dom_Worklet_h