1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/events/EventTarget.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,97 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef mozilla_dom_EventTarget_h_
1.10 +#define mozilla_dom_EventTarget_h_
1.11 +
1.12 +#include "nsIDOMEventTarget.h"
1.13 +#include "nsWrapperCache.h"
1.14 +#include "nsIAtom.h"
1.15 +
1.16 +class nsIDOMWindow;
1.17 +class nsIDOMEventListener;
1.18 +
1.19 +namespace mozilla {
1.20 +
1.21 +class ErrorResult;
1.22 +class EventListenerManager;
1.23 +
1.24 +namespace dom {
1.25 +
1.26 +class Event;
1.27 +class EventListener;
1.28 +class EventHandlerNonNull;
1.29 +template <class T> struct Nullable;
1.30 +
1.31 +// IID for the dom::EventTarget interface
1.32 +#define NS_EVENTTARGET_IID \
1.33 +{ 0xce3817d0, 0x177b, 0x402f, \
1.34 + { 0xae, 0x75, 0xf8, 0x4e, 0xbe, 0x5a, 0x07, 0xc3 } }
1.35 +
1.36 +class EventTarget : public nsIDOMEventTarget,
1.37 + public nsWrapperCache
1.38 +{
1.39 +public:
1.40 + NS_DECLARE_STATIC_IID_ACCESSOR(NS_EVENTTARGET_IID)
1.41 +
1.42 + // WebIDL API
1.43 + using nsIDOMEventTarget::AddEventListener;
1.44 + using nsIDOMEventTarget::RemoveEventListener;
1.45 + using nsIDOMEventTarget::DispatchEvent;
1.46 + virtual void AddEventListener(const nsAString& aType,
1.47 + EventListener* aCallback,
1.48 + bool aCapture,
1.49 + const Nullable<bool>& aWantsUntrusted,
1.50 + ErrorResult& aRv) = 0;
1.51 + virtual void RemoveEventListener(const nsAString& aType,
1.52 + EventListener* aCallback,
1.53 + bool aCapture,
1.54 + ErrorResult& aRv);
1.55 + bool DispatchEvent(Event& aEvent, ErrorResult& aRv);
1.56 +
1.57 + // Note, this takes the type in onfoo form!
1.58 + EventHandlerNonNull* GetEventHandler(const nsAString& aType)
1.59 + {
1.60 + nsCOMPtr<nsIAtom> type = do_GetAtom(aType);
1.61 + return GetEventHandler(type, EmptyString());
1.62 + }
1.63 +
1.64 + // Note, this takes the type in onfoo form!
1.65 + void SetEventHandler(const nsAString& aType, EventHandlerNonNull* aHandler,
1.66 + ErrorResult& rv);
1.67 +
1.68 + // Note, for an event 'foo' aType will be 'onfoo'.
1.69 + virtual void EventListenerAdded(nsIAtom* aType) {}
1.70 + virtual void EventListenerRemoved(nsIAtom* aType) {}
1.71 +
1.72 + // Returns an outer window that corresponds to the inner window this event
1.73 + // target is associated with. Will return null if the inner window is not the
1.74 + // current inner or if there is no window around at all.
1.75 + virtual nsIDOMWindow* GetOwnerGlobal() = 0;
1.76 +
1.77 + /**
1.78 + * Get the event listener manager, creating it if it does not already exist.
1.79 + */
1.80 + virtual EventListenerManager* GetOrCreateListenerManager() = 0;
1.81 +
1.82 + /**
1.83 + * Get the event listener manager, returning null if it does not already
1.84 + * exist.
1.85 + */
1.86 + virtual EventListenerManager* GetExistingListenerManager() const = 0;
1.87 +
1.88 +protected:
1.89 + EventHandlerNonNull* GetEventHandler(nsIAtom* aType,
1.90 + const nsAString& aTypeString);
1.91 + void SetEventHandler(nsIAtom* aType, const nsAString& aTypeString,
1.92 + EventHandlerNonNull* aHandler);
1.93 +};
1.94 +
1.95 +NS_DEFINE_STATIC_IID_ACCESSOR(EventTarget, NS_EVENTTARGET_IID)
1.96 +
1.97 +} // namespace dom
1.98 +} // namespace mozilla
1.99 +
1.100 +#endif // mozilla_dom_EventTarget_h_
