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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_extensions_ExtensionEventManager_h
#define mozilla_extensions_ExtensionEventManager_h
#include "js/GCHashTable.h" // for JS::GCHashMap
#include "js/TypeDecls.h" // for JS::Handle, JSContext, JSObject, ...
#include "mozilla/Attributes.h"
#include "mozilla/dom/BindingDeclarations.h"
#include "mozilla/ErrorResult.h"
#include "nsCycleCollectionParticipant.h"
#include "nsCOMPtr.h"
#include "nsISupports.h"
#include "nsPointerHashKeys.h"
#include "nsRefPtrHashtable.h"
#include "nsWrapperCache.h"
#include "ExtensionAPIBase.h"
class nsIGlobalObject;
namespace mozilla {
namespace dom {
class Function;
} // namespace dom
namespace extensions {
class ExtensionBrowser;
class ExtensionEventListener;
class ExtensionEventManager final : public nsISupports,
public nsWrapperCache,
public ExtensionAPIBase {
public:
ExtensionEventManager(nsIGlobalObject* aGlobal,
ExtensionBrowser* aExtensionBrowser,
const nsAString& aNamespace,
const nsAString& aEventName,
const nsAString& aObjectType = VoidString(),
const nsAString& aObjectId = VoidString());
// nsWrapperCache interface methods
JSObject* WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
nsIGlobalObject* GetParentObject() const;
bool HasListener(dom::Function& aCallback, ErrorResult& aRv) const;
bool HasListeners(ErrorResult& aRv) const;
void AddListener(JSContext* aCx, dom::Function& aCallback,
const dom::Optional<JS::Handle<JSObject*>>& aOptions,
ErrorResult& aRv);
void RemoveListener(dom::Function& aCallback, ErrorResult& aRv);
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(ExtensionEventManager)
protected:
// ExtensionAPIBase methods
nsIGlobalObject* GetGlobalObject() const override { return mGlobal; }
ExtensionBrowser* GetExtensionBrowser() const override {
return mExtensionBrowser;
}
nsString GetAPINamespace() const override { return mAPINamespace; }
nsString GetAPIObjectType() const override { return mAPIObjectType; }
nsString GetAPIObjectId() const override { return mAPIObjectId; }
private:
using ListenerWrappersMap =
JS::GCHashMap<JS::Heap<JSObject*>, RefPtr<ExtensionEventListener>,
js::StableCellHasher<JS::Heap<JSObject*>>,
js::SystemAllocPolicy>;
~ExtensionEventManager();
void ReleaseListeners();
nsCOMPtr<nsIGlobalObject> mGlobal;
RefPtr<ExtensionBrowser> mExtensionBrowser;
nsString mAPINamespace;
nsString mEventName;
nsString mAPIObjectType;
nsString mAPIObjectId;
ListenerWrappersMap mListeners;
};
} // namespace extensions
} // namespace mozilla
#endif // mozilla_extensions_ExtensionEventManager_h
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