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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_EventListenerService_h_
#define mozilla_EventListenerService_h_
#include "jsapi.h"
#include "mozilla/Attributes.h"
#include "nsAutoPtr.h"
#include "nsCycleCollectionParticipant.h"
#include "nsIDOMEventListener.h"
#include "nsIEventListenerService.h"
#include "nsString.h"
#include "nsTObserverArray.h"
#include "nsDataHashtable.h"
#include "nsGkAtoms.h"
class nsIMutableArray;
namespace mozilla {
namespace dom {
class EventTarget;
} // namespace dom
template<typename T>
class Maybe;
class EventListenerChange final : public nsIEventListenerChange
{
public:
explicit EventListenerChange(dom::EventTarget* aTarget);
void AddChangedListenerName(nsIAtom* aEventName);
NS_DECL_ISUPPORTS
NS_DECL_NSIEVENTLISTENERCHANGE
protected:
virtual ~EventListenerChange();
nsCOMPtr<dom::EventTarget> mTarget;
nsCOMPtr<nsIMutableArray> mChangedListenerNames;
};
class EventListenerInfo final : public nsIEventListenerInfo
{
public:
EventListenerInfo(const nsAString& aType,
already_AddRefed<nsIDOMEventListener> aListener,
bool aCapturing,
bool aAllowsUntrusted,
bool aInSystemEventGroup)
: mType(aType)
, mListener(aListener)
, mCapturing(aCapturing)
, mAllowsUntrusted(aAllowsUntrusted)
, mInSystemEventGroup(aInSystemEventGroup)
{
}
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_CLASS(EventListenerInfo)
NS_DECL_NSIEVENTLISTENERINFO
protected:
virtual ~EventListenerInfo() {}
bool GetJSVal(JSContext* aCx,
Maybe<JSAutoCompartment>& aAc,
JS::MutableHandle<JS::Value> aJSVal);
nsString mType;
// nsReftPtr because that is what nsListenerStruct uses too.
RefPtr<nsIDOMEventListener> mListener;
bool mCapturing;
bool mAllowsUntrusted;
bool mInSystemEventGroup;
};
class EventListenerService final : public nsIEventListenerService
{
~EventListenerService();
public:
EventListenerService();
NS_DECL_ISUPPORTS
NS_DECL_NSIEVENTLISTENERSERVICE
static void NotifyAboutMainThreadListenerChange(dom::EventTarget* aTarget,
nsIAtom* aName)
{
if (sInstance) {
sInstance->NotifyAboutMainThreadListenerChangeInternal(aTarget, aName);
}
}
void NotifyPendingChanges();
private:
void NotifyAboutMainThreadListenerChangeInternal(dom::EventTarget* aTarget,
nsIAtom* aName);
nsTObserverArray<nsCOMPtr<nsIListenerChangeListener>> mChangeListeners;
nsCOMPtr<nsIMutableArray> mPendingListenerChanges;
nsDataHashtable<nsISupportsHashKey, RefPtr<EventListenerChange>> mPendingListenerChangesSet;
static EventListenerService* sInstance;
};
} // namespace mozilla
#endif // mozilla_EventListenerService_h_
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