/* -*- 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_dom_EventTarget_h_ #define mozilla_dom_EventTarget_h_ #include "nsIDOMEventTarget.h" #include "nsWrapperCache.h" #include "nsIAtom.h" class nsPIDOMWindowOuter; class nsIGlobalObject; namespace mozilla { class AsyncEventDispatcher; class ErrorResult; class EventListenerManager; namespace dom { class AddEventListenerOptionsOrBoolean; class Event; class EventListener; class EventListenerOptionsOrBoolean; class EventHandlerNonNull; template <class T> struct Nullable; // IID for the dom::EventTarget interface #define NS_EVENTTARGET_IID \ { 0xde651c36, 0x0053, 0x4c67, \ { 0xb1, 0x3d, 0x67, 0xb9, 0x40, 0xfc, 0x82, 0xe4 } } class EventTarget : public nsIDOMEventTarget, public nsWrapperCache { public: NS_DECLARE_STATIC_IID_ACCESSOR(NS_EVENTTARGET_IID) // WebIDL API using nsIDOMEventTarget::AddEventListener; using nsIDOMEventTarget::RemoveEventListener; using nsIDOMEventTarget::DispatchEvent; virtual void AddEventListener(const nsAString& aType, EventListener* aCallback, const AddEventListenerOptionsOrBoolean& aOptions, const Nullable<bool>& aWantsUntrusted, ErrorResult& aRv) = 0; virtual void RemoveEventListener(const nsAString& aType, EventListener* aCallback, const EventListenerOptionsOrBoolean& aOptions, ErrorResult& aRv); bool DispatchEvent(JSContext* aCx, Event& aEvent, ErrorResult& aRv); // Note, this takes the type in onfoo form! EventHandlerNonNull* GetEventHandler(const nsAString& aType) { nsCOMPtr<nsIAtom> type = NS_Atomize(aType); return GetEventHandler(type, EmptyString()); } // Note, this takes the type in onfoo form! void SetEventHandler(const nsAString& aType, EventHandlerNonNull* aHandler, ErrorResult& rv); // Note, for an event 'foo' aType will be 'onfoo'. virtual void EventListenerAdded(nsIAtom* aType) {} virtual void EventListenerRemoved(nsIAtom* aType) {} // Returns an outer window that corresponds to the inner window this event // target is associated with. Will return null if the inner window is not the // current inner or if there is no window around at all. virtual nsPIDOMWindowOuter* GetOwnerGlobalForBindings() = 0; // The global object this event target is associated with, if any. // This may be an inner window or some other global object. This // will never be an outer window. virtual nsIGlobalObject* GetOwnerGlobal() const = 0; /** * Get the event listener manager, creating it if it does not already exist. */ virtual EventListenerManager* GetOrCreateListenerManager() = 0; /** * Get the event listener manager, returning null if it does not already * exist. */ virtual EventListenerManager* GetExistingListenerManager() const = 0; // Called from AsyncEventDispatcher to notify it is running. virtual void AsyncEventRunning(AsyncEventDispatcher* aEvent) {} virtual bool IsApzAware() const; protected: EventHandlerNonNull* GetEventHandler(nsIAtom* aType, const nsAString& aTypeString); void SetEventHandler(nsIAtom* aType, const nsAString& aTypeString, EventHandlerNonNull* aHandler); }; NS_DEFINE_STATIC_IID_ACCESSOR(EventTarget, NS_EVENTTARGET_IID) } // namespace dom } // namespace mozilla #endif // mozilla_dom_EventTarget_h_