toolkit/components/extensions/DocumentObserver.h

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2; -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #ifndef mozilla_extensions_DocumentObserver_h
   7 #define mozilla_extensions_DocumentObserver_h
   8
   9 #include "mozilla/dom/BindingDeclarations.h"
  10 #include "mozilla/dom/MozDocumentObserverBinding.h"
  11
  12 #include "mozilla/extensions/WebExtensionContentScript.h"
  13
  14 class nsILoadInfo;
  15 class nsPIDOMWindowOuter;
  16
  17 namespace mozilla {
  18 namespace extensions {
  19
  20 class DocumentObserver final : public nsISupports, public nsWrapperCache {
  21   NS_DECL_CYCLE_COLLECTING_ISUPPORTS
  22   NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(DocumentObserver)
  23
  24   static already_AddRefed<DocumentObserver> Constructor(
  25       dom::GlobalObject& aGlobal, dom::MozDocumentCallback& aCallbacks);
  26
  27   void Observe(const dom::Sequence<OwningNonNull<MozDocumentMatcher>>& matchers,
  28                ErrorResult& aRv);
  29
  30   void Disconnect();
  31
  32   const nsTArray<RefPtr<MozDocumentMatcher>>& Matchers() const {
  33     return mMatchers;
  34   }
  35
  36   void NotifyMatch(MozDocumentMatcher& aMatcher, nsPIDOMWindowOuter* aWindow);
  37   void NotifyMatch(MozDocumentMatcher& aMatcher, nsILoadInfo* aLoadInfo);
  38
  39   nsISupports* GetParentObject() const { return mParent; }
  40   JSObject* WrapObject(JSContext* aCx,
  41                        JS::Handle<JSObject*> aGivenProto) override;
  42
  43  protected:
  44   virtual ~DocumentObserver() = default;
  45
  46  private:
  47   explicit DocumentObserver(nsISupports* aParent,
  48                             dom::MozDocumentCallback& aCallbacks)
  49       : mParent(aParent), mCallbacks(&aCallbacks) {}
  50
  51   nsCOMPtr<nsISupports> mParent;
  52   RefPtr<dom::MozDocumentCallback> mCallbacks;
  53   nsTArray<RefPtr<MozDocumentMatcher>> mMatchers;
  54 };
  55
  56 }  // namespace extensions
  57 }  // namespace mozilla
  58
  59 #endif  // mozilla_extensions_DocumentObserver_h