175 lines
7.0 KiB
Plaintext
175 lines
7.0 KiB
Plaintext
/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 2000
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Tom Pixley <joki@netscape.com> (original author)
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* Johnny Stenback <jst@netscape.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "domstubs.idl"
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interface nsIDOMEventTarget;
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/**
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* The nsIDOMEvent interface is the primary datatype for all events in
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* the Document Object Model.
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*
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* For more information on this interface please see
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* http://www.w3.org/TR/DOM-Level-2-Events/
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*
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* @status FROZEN
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*/
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[scriptable, uuid(a66b7b80-ff46-bd97-0080-5f8ae38add32)]
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interface nsIDOMEvent : nsISupports
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{
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// PhaseType
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/**
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* The current event phase is the capturing phase.
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*/
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const unsigned short CAPTURING_PHASE = 1;
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/**
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* The event is currently being evaluated at the target EventTarget.
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*/
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const unsigned short AT_TARGET = 2;
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/**
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* The current event phase is the bubbling phase.
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*/
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const unsigned short BUBBLING_PHASE = 3;
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/**
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* The name of the event (case-insensitive). The name must be an XML
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* name.
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*/
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readonly attribute DOMString type;
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/**
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* Used to indicate the EventTarget to which the event was originally
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* dispatched.
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*/
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readonly attribute nsIDOMEventTarget target;
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/**
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* Used to indicate the EventTarget whose EventListeners are currently
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* being processed. This is particularly useful during capturing and
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* bubbling.
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*/
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readonly attribute nsIDOMEventTarget currentTarget;
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/**
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* Used to indicate which phase of event flow is currently being
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* evaluated.
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*/
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readonly attribute unsigned short eventPhase;
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/**
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* Used to indicate whether or not an event is a bubbling event. If the
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* event can bubble the value is true, else the value is false.
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*/
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readonly attribute boolean bubbles;
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/**
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* Used to indicate whether or not an event can have its default action
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* prevented. If the default action can be prevented the value is true,
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* else the value is false.
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*/
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readonly attribute boolean cancelable;
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/**
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* Used to specify the time (in milliseconds relative to the epoch) at
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* which the event was created. Due to the fact that some systems may
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* not provide this information the value of timeStamp may be not
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* available for all events. When not available, a value of 0 will be
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* returned. Examples of epoch time are the time of the system start or
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* 0:0:0 UTC 1st January 1970.
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*/
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readonly attribute DOMTimeStamp timeStamp;
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/**
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* The stopPropagation method is used prevent further propagation of an
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* event during event flow. If this method is called by any
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* EventListener the event will cease propagating through the tree. The
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* event will complete dispatch to all listeners on the current
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* EventTarget before event flow stops. This method may be used during
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* any stage of event flow.
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*/
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void stopPropagation();
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/**
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* If an event is cancelable, the preventDefault method is used to
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* signify that the event is to be canceled, meaning any default action
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* normally taken by the implementation as a result of the event will
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* not occur. If, during any stage of event flow, the preventDefault
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* method is called the event is canceled. Any default action associated
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* with the event will not occur. Calling this method for a
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* non-cancelable event has no effect. Once preventDefault has been
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* called it will remain in effect throughout the remainder of the
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* event's propagation. This method may be used during any stage of
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* event flow.
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*/
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void preventDefault();
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/**
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* The initEvent method is used to initialize the value of an Event
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* created through the DocumentEvent interface. This method may only be
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* called before the Event has been dispatched via the dispatchEvent
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* method, though it may be called multiple times during that phase if
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* necessary. If called multiple times the final invocation takes
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* precedence. If called from a subclass of Event interface only the
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* values specified in the initEvent method are modified, all other
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* attributes are left unchanged.
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*
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* @param eventTypeArg Specifies the event type. This type may be
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* any event type currently defined in this
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* specification or a new event type.. The string
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* must be an XML name.
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* Any new event type must not begin with any
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* upper, lower, or mixed case version of the
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* string "DOM". This prefix is reserved for
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* future DOM event sets. It is also strongly
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* recommended that third parties adding their
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* own events use their own prefix to avoid
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* confusion and lessen the probability of
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* conflicts with other new events.
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* @param canBubbleArg Specifies whether or not the event can bubble.
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* @param cancelableArg Specifies whether or not the event's default
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* action can be prevented.
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*/
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void initEvent(in DOMString eventTypeArg,
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in boolean canBubbleArg,
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in boolean cancelableArg);
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};
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