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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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_
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