tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
Log | Files | Refs | README | LICENSE

PerformanceObserver.h (2547B)

      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 #ifndef mozilla_dom_PerformanceObserver_h__
      8 #define mozilla_dom_PerformanceObserver_h__
      9 
     10 #include "mozilla/RefPtr.h"
     11 #include "mozilla/dom/PerformanceObserverBinding.h"
     12 #include "nsCOMPtr.h"
     13 #include "nsISupports.h"
     14 #include "nsString.h"
     15 #include "nsTArray.h"
     16 #include "nsWrapperCache.h"
     17 
     18 class nsPIDOMWindowInner;
     19 
     20 namespace mozilla {
     21 
     22 class ErrorResult;
     23 
     24 namespace dom {
     25 
     26 class GlobalObject;
     27 class Performance;
     28 class PerformanceEntry;
     29 class PerformanceObserverCallback;
     30 class WorkerPrivate;
     31 
     32 class PerformanceObserver final : public nsISupports, public nsWrapperCache {
     33 public:
     34  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
     35  NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(PerformanceObserver)
     36 
     37  static already_AddRefed<PerformanceObserver> Constructor(
     38      const GlobalObject& aGlobal, PerformanceObserverCallback& aCb,
     39      ErrorResult& aRv);
     40 
     41  PerformanceObserver(nsPIDOMWindowInner* aOwner,
     42                      PerformanceObserverCallback& aCb);
     43 
     44  PerformanceObserver(WorkerPrivate* aWorkerPrivate,
     45                      PerformanceObserverCallback& aCb);
     46 
     47  virtual JSObject* WrapObject(JSContext* aCx,
     48                               JS::Handle<JSObject*> aGivenProto) override;
     49 
     50  nsISupports* GetParentObject() const { return mOwner; }
     51 
     52  void Observe(const PerformanceObserverInit& aOptions, ErrorResult& aRv);
     53  static void GetSupportedEntryTypes(const GlobalObject& aGlobal,
     54                                     JS::MutableHandle<JSObject*> aObject);
     55 
     56  void Disconnect();
     57 
     58  void TakeRecords(nsTArray<RefPtr<PerformanceEntry>>& aRetval);
     59 
     60  MOZ_CAN_RUN_SCRIPT void Notify();
     61  void QueueEntry(PerformanceEntry* aEntry);
     62 
     63  bool ObservesTypeOfEntry(PerformanceEntry* aEntry);
     64 
     65 private:
     66  ~PerformanceObserver();
     67 
     68  nsCOMPtr<nsIGlobalObject> mOwner;
     69  RefPtr<PerformanceObserverCallback> mCallback;
     70  RefPtr<Performance> mPerformance;
     71  nsTArray<nsString> mEntryTypes;
     72  nsTArray<PerformanceObserverInit> mOptions;
     73  enum {
     74    ObserverTypeUndefined,
     75    ObserverTypeSingle,
     76    ObserverTypeMultiple,
     77  } mObserverType;
     78  /*
     79   * This is also known as registered, in the spec.
     80   */
     81  bool mConnected;
     82  nsTArray<RefPtr<PerformanceEntry>> mQueuedEntries;
     83 };
     84 
     85 }  // namespace dom
     86 }  // namespace mozilla
     87 
     88 #endif