зеркало из https://github.com/mozilla/gecko-dev.git
104 строки
2.9 KiB
C++
104 строки
2.9 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_EventListenerService_h_
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#define mozilla_EventListenerService_h_
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#include "jsapi.h"
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#include "mozilla/Attributes.h"
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#include "nsAutoPtr.h"
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#include "nsCycleCollectionParticipant.h"
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#include "nsIDOMEventListener.h"
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#include "nsIEventListenerService.h"
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#include "nsString.h"
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#include "nsTObserverArray.h"
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#include "nsDataHashtable.h"
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#include "nsGkAtoms.h"
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class nsIMutableArray;
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namespace mozilla {
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namespace dom {
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class EventTarget;
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} // namespace dom
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template<typename T>
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class Maybe;
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class EventListenerChange final : public nsIEventListenerChange
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{
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public:
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explicit EventListenerChange(dom::EventTarget* aTarget);
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void AddChangedListenerName(nsAtom* aEventName);
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NS_DECL_ISUPPORTS
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NS_DECL_NSIEVENTLISTENERCHANGE
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protected:
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virtual ~EventListenerChange();
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nsCOMPtr<dom::EventTarget> mTarget;
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nsTArray<RefPtr<nsAtom>> mChangedListenerNames;
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};
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class EventListenerInfo final : public nsIEventListenerInfo
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{
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public:
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EventListenerInfo(const nsAString& aType,
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JS::Handle<JSObject*> aScriptedListener,
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bool aCapturing,
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bool aAllowsUntrusted,
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bool aInSystemEventGroup);
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NS_DECL_CYCLE_COLLECTING_ISUPPORTS
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NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(EventListenerInfo)
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NS_DECL_NSIEVENTLISTENERINFO
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protected:
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virtual ~EventListenerInfo();
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bool GetJSVal(JSContext* aCx,
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Maybe<JSAutoRealm>& aAr,
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JS::MutableHandle<JS::Value> aJSVal);
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nsString mType;
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JS::Heap<JSObject*> mScriptedListener; // May be null.
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bool mCapturing;
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bool mAllowsUntrusted;
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bool mInSystemEventGroup;
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};
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class EventListenerService final : public nsIEventListenerService
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{
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~EventListenerService();
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public:
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EventListenerService();
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NS_DECL_ISUPPORTS
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NS_DECL_NSIEVENTLISTENERSERVICE
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static void NotifyAboutMainThreadListenerChange(dom::EventTarget* aTarget,
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nsAtom* aName)
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{
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if (sInstance) {
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sInstance->NotifyAboutMainThreadListenerChangeInternal(aTarget, aName);
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}
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}
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void NotifyPendingChanges();
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private:
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void NotifyAboutMainThreadListenerChangeInternal(dom::EventTarget* aTarget,
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nsAtom* aName);
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nsTObserverArray<nsCOMPtr<nsIListenerChangeListener>> mChangeListeners;
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nsCOMPtr<nsIMutableArray> mPendingListenerChanges;
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nsDataHashtable<nsISupportsHashKey, RefPtr<EventListenerChange>> mPendingListenerChangesSet;
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static EventListenerService* sInstance;
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};
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} // namespace mozilla
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#endif // mozilla_EventListenerService_h_
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