Srujan Gaddam
63a57a76ce
This reverts commit f8ff12008e.
This CL is a revert of the initial revert and should be landed once
Flutter changes have been merged to handle the changes here.
Change-Id: I300a5efd776bf2a596743971f4e15ad62da77f5a
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/153368
Commit-Queue: Srujan Gaddam <srujzs@google.com>
Reviewed-by: Sigmund Cherem <sigmund@google.com>
136 lines
3.6 KiB
Plaintext
136 lines
3.6 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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part of $LIBRARYNAME;
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$(ANNOTATIONS)$(NATIVESPEC)$(CLASS_MODIFIERS)class $CLASSNAME$EXTENDS$IMPLEMENTS {
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factory WheelEvent(String type,
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{Window$NULLABLE view, num deltaX: 0, num deltaY: 0, num deltaZ: 0,
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int deltaMode: 0,
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int detail: 0, int screenX: 0, int screenY: 0, int clientX: 0,
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int clientY: 0, int button: 0, bool canBubble: true,
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bool cancelable: true, bool ctrlKey: false, bool altKey: false,
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bool shiftKey: false, bool metaKey: false,
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EventTarget$NULLABLE relatedTarget}) {
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var options = {
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'view': view,
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'deltaMode': deltaMode,
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'deltaX': deltaX,
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'deltaY': deltaY,
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'deltaZ': deltaZ,
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'detail': detail,
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'screenX': screenX,
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'screenY': screenY,
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'clientX': clientX,
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'clientY': clientY,
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'button': button,
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'bubbles': canBubble,
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'cancelable': cancelable,
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'ctrlKey': ctrlKey,
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'altKey': altKey,
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'shiftKey': shiftKey,
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'metaKey': metaKey,
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'relatedTarget': relatedTarget,
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};
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if (view == null) {
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view = window;
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}
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return JS('WheelEvent', 'new WheelEvent(#, #)',
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type, convertDartToNative_Dictionary(options));
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}
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$!MEMBERS
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/**
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* The amount that is expected to scroll vertically, in units determined by
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* [deltaMode].
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*
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* See also:
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*
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* * [WheelEvent.deltaY](http://dev.w3.org/2006/webapi/DOM-Level-3-Events/html/DOM3-Events.html#events-WheelEvent-deltaY) from the W3C.
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*/
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num get deltaY {
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// deltaY may be missing or undefined.
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num? value = JS('', '#.deltaY', this);
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if (value != null) return value;
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throw new UnsupportedError('deltaY is not supported');
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}
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/**
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* The amount that is expected to scroll horizontally, in units determined by
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* [deltaMode].
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*
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* See also:
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*
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* * [WheelEvent.deltaX](http://dev.w3.org/2006/webapi/DOM-Level-3-Events/html/DOM3-Events.html#events-WheelEvent-deltaX) from the W3C.
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*/
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num get deltaX {
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// deltaX may be missing or undefined.
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num? value = JS('', '#.deltaX', this);
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if (value != null) return value;
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throw new UnsupportedError('deltaX is not supported');
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}
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int get deltaMode {
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if (JS('bool', '!!(#.deltaMode)', this)) {
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return JS('int', '#.deltaMode', this);
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}
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// If not available then we're poly-filling and doing pixel scroll.
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return 0;
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}
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num get _wheelDelta => JS('num', '#.wheelDelta', this);
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num get _wheelDeltaX => JS('num', '#.wheelDeltaX', this);
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num get _detail => JS('num', '#.detail', this);
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bool get _hasInitMouseScrollEvent =>
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JS('bool', '!!(#.initMouseScrollEvent)', this);
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@JSName('initMouseScrollEvent')
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void _initMouseScrollEvent(
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String type,
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bool canBubble,
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bool cancelable,
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Window view,
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int detail,
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int screenX,
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int screenY,
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int clientX,
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int clientY,
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bool ctrlKey,
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bool altKey,
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bool shiftKey,
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bool metaKey,
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int button,
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EventTarget relatedTarget,
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int axis) native;
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bool get _hasInitWheelEvent =>
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JS('bool', '!!(#.initWheelEvent)', this);
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@JSName('initWheelEvent')
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void _initWheelEvent(
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String eventType,
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bool canBubble,
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bool cancelable,
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Window view,
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int detail,
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int screenX,
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int screenY,
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int clientX,
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int clientY,
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int button,
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EventTarget relatedTarget,
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String modifiersList,
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int deltaX,
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int deltaY,
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int deltaZ,
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int deltaMode) native;
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}
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