dom/worklet/WorkletGlobalScope.h

   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_WorkletGlobalScope_h
   8 #define mozilla_dom_WorkletGlobalScope_h
   9
  10 #include "mozilla/Attributes.h"
  11 #include "mozilla/Maybe.h"
  12 #include "mozilla/TimeStamp.h"
  13 #include "mozilla/dom/BindingDeclarations.h"
  14 #include "nsDOMNavigationTiming.h"
  15 #include "nsIGlobalObject.h"
  16 #include "nsWrapperCache.h"
  17
  18 #define WORKLET_IID                                  \
  19   {                                                  \
  20     0x1b3f62e7, 0xe357, 0x44be, {                    \
  21       0xbf, 0xe0, 0xdf, 0x85, 0xe6, 0x56, 0x85, 0xac \
  22     }                                                \
  23   }
  24
  25 namespace JS::loader {
  26 class ModuleLoaderBase;
  27 }
  28
  29 namespace mozilla {
  30
  31 class ErrorResult;
  32 class WorkletImpl;
  33
  34 namespace dom {
  35
  36 namespace loader {
  37 class WorkletModuleLoader;
  38 }
  39
  40 class Console;
  41
  42 class WorkletGlobalScope : public nsIGlobalObject, public nsWrapperCache {
  43  public:
  44   NS_DECLARE_STATIC_IID_ACCESSOR(WORKLET_IID)
  45
  46   NS_DECL_CYCLE_COLLECTING_ISUPPORTS
  47   NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(WorkletGlobalScope)
  48
  49   WorkletGlobalScope(WorkletImpl*);
  50
  51   nsIGlobalObject* GetParentObject() const { return nullptr; }
  52
  53   virtual JSObject* WrapObject(JSContext* aCx,
  54                                JS::Handle<JSObject*> aGivenProto) override;
  55
  56   virtual bool WrapGlobalObject(JSContext* aCx,
  57                                 JS::MutableHandle<JSObject*> aReflector) = 0;
  58
  59   JSObject* GetGlobalJSObject() override { return GetWrapper(); }
  60   JSObject* GetGlobalJSObjectPreserveColor() const override {
  61     return GetWrapperPreserveColor();
  62   }
  63
  64   already_AddRefed<Console> GetConsole(JSContext* aCx, ErrorResult& aRv);
  65
  66   WorkletImpl* Impl() const { return mImpl.get(); }
  67
  68   void Dump(const Optional<nsAString>& aString) const;
  69
  70   DOMHighResTimeStamp TimeStampToDOMHighRes(const TimeStamp& aTimeStamp) const {
  71     MOZ_ASSERT(!aTimeStamp.IsNull());
  72     TimeDuration duration = aTimeStamp - mCreationTimeStamp;
  73     return duration.ToMilliseconds();
  74   }
  75
  76   void InitModuleLoader(loader::WorkletModuleLoader* aModuleLoader);
  77
  78   JS::loader::ModuleLoaderBase* GetModuleLoader(
  79       JSContext* aCx = nullptr) override;
  80
  81   OriginTrials Trials() const override;
  82   Maybe<nsID> GetAgentClusterId() const override;
  83   bool IsSharedMemoryAllowed() const override;
  84   bool ShouldResistFingerprinting(RFPTarget aTarget) const override;
  85
  86  protected:
  87   ~WorkletGlobalScope();
  88
  89   const RefPtr<WorkletImpl> mImpl;
  90
  91  private:
  92   TimeStamp mCreationTimeStamp;
  93   RefPtr<Console> mConsole;
  94   RefPtr<loader::WorkletModuleLoader> mModuleLoader;
  95 };
  96
  97 NS_DEFINE_STATIC_IID_ACCESSOR(WorkletGlobalScope, WORKLET_IID)
  98
  99 }  // namespace dom
 100 }  // namespace mozilla
 101
 102 #endif  // mozilla_dom_WorkletGlobalScope_h