зеркало из https://github.com/mozilla/gecko-dev.git
101 строка
3.7 KiB
Plaintext
101 строка
3.7 KiB
Plaintext
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsISupports.idl"
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interface nsIDOMEventListener;
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interface nsIDOMEventTarget;
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/**
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* An instance of this interface describes how an event listener
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* was added to an event target.
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*/
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[scriptable, uuid(11ba5fd7-8db2-4b1a-9f67-342cfa11afad)]
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interface nsIEventListenerInfo : nsISupports
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{
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/**
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* The type of the event for which the listener was added.
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* Null if the listener is for all the events.
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*/
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readonly attribute AString type;
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readonly attribute boolean capturing;
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readonly attribute boolean allowsUntrusted;
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readonly attribute boolean inSystemEventGroup;
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/**
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* The underlying JS object of the event listener, if this listener
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* has one. Null otherwise.
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*/
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[implicit_jscontext]
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readonly attribute jsval listenerObject;
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/**
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* Tries to serialize event listener to a string.
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* Returns null if serialization isn't possible
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* (for example with C++ listeners).
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*/
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AString toSource();
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};
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[scriptable, uuid(f6964bfb-dabe-4cab-9733-be0ee2bf8171)]
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interface nsIEventListenerService : nsISupports
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{
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/**
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* Returns an array of nsIEventListenerInfo objects.
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* If aEventTarget doesn't have any listeners, this returns null.
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*/
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void getListenerInfoFor(in nsIDOMEventTarget aEventTarget,
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[optional] out unsigned long aCount,
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[retval, array, size_is(aCount)] out
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nsIEventListenerInfo aOutArray);
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/**
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* Returns an array of event targets.
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* aEventTarget will be at index 0.
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* The objects are the ones that would be used as DOMEvent.currentTarget while
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* dispatching an event to aEventTarget
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* @note Some events, especially 'load', may actually have a shorter
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* event target chain than what this methods returns.
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*/
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void getEventTargetChainFor(in nsIDOMEventTarget aEventTarget,
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[optional] out unsigned long aCount,
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[retval, array, size_is(aCount)] out
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nsIDOMEventTarget aOutArray);
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/**
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* Returns true if a event target has any listener for the given type.
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*/
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boolean hasListenersFor(in nsIDOMEventTarget aEventTarget,
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in DOMString aType);
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/**
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* Add a system-group eventlistener to a event target.
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*/
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void addSystemEventListener(in nsIDOMEventTarget target,
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in DOMString type,
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in nsIDOMEventListener listener,
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in boolean useCapture);
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/**
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* Remove a system-group eventlistener from a event target.
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*/
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void removeSystemEventListener(in nsIDOMEventTarget target,
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in DOMString type,
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in nsIDOMEventListener listener,
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in boolean useCapture);
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void addListenerForAllEvents(in nsIDOMEventTarget target,
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in nsIDOMEventListener listener,
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[optional] in boolean aUseCapture,
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[optional] in boolean aWantsUntrusted,
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[optional] in boolean aSystemEventGroup);
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void removeListenerForAllEvents(in nsIDOMEventTarget target,
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in nsIDOMEventListener listener,
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[optional] in boolean aUseCapture,
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[optional] in boolean aSystemEventGroup);
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};
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