efortuna@google.com
502c7c29c8
BUG= R=blois@google.com Review URL: https://codereview.chromium.org//52443007 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@29609 260f80e4-7a28-3924-810f-c04153c831b5
61 lines
2.2 KiB
Plaintext
61 lines
2.2 KiB
Plaintext
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// WARNING: Do not edit - generated code.
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part of $LIBRARYNAME;
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$(ANNOTATIONS)$(CLASS_MODIFIERS)class $CLASSNAME$EXTENDS$IMPLEMENTS$NATIVESPEC {
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// In JS, canBubble and cancelable are technically required parameters to
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// init*Event. In practice, though, if they aren't provided they simply
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// default to false (since that's Boolean(undefined)).
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//
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// Contrary to JS, we default canBubble and cancelable to true, since that's
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// what people want most of the time anyway.
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factory $CLASSNAME(String type,
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{bool canBubble: true, bool cancelable: true}) {
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return new Event.eventType('Event', type, canBubble: canBubble,
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cancelable: cancelable);
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}
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/**
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* Creates a new Event object of the specified type.
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*
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* This is analogous to document.createEvent.
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* Normally events should be created via their constructors, if available.
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*
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* var e = new Event.type('MouseEvent', 'mousedown', true, true);
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*/
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factory Event.eventType(String type, String name, {bool canBubble: true,
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bool cancelable: true}) {
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final Event e = document._createEvent(type);
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e._initEvent(name, canBubble, cancelable);
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return e;
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}
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/** The CSS selector involved with event delegation. */
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String _selector;
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/**
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* A pointer to the element whose CSS selector matched within which an event
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* was fired. If this Event was not associated with any Event delegation,
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* accessing this value will throw an [UnsupportedError].
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*/
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Element get matchingTarget {
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if (_selector == null) {
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throw new UnsupportedError('Cannot call matchingTarget if this Event did'
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' not arise as a result of event delegation.');
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}
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var currentTarget = this.currentTarget;
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var target = this.target;
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var matchedTarget;
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do {
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if (target.matches(_selector)) return target;
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target = target.parent;
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} while (target != null && target != currentTarget.parent);
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throw new StateError('No selector matched for populating matchedTarget.');
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}
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$!MEMBERS
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}
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