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lines changed Original file line number Diff line number Diff line change @@ -71,16 +71,13 @@ export function hasModifierKey(event: ReactDOMResponderEvent): boolean {
7171 ) ;
7272}
7373
74- // Keyboards, Assitive Technologies, and element.click() all produce "virtual"
75- // clicks that do not include coordinates and "detail" is always 0 (where
76- // pointer clicks are > 0).
74+ // Keyboards, Assitive Technologies, and element.click() all produce a "virtual"
75+ // click event. This is a method of inferring such clicks. Every browser except
76+ // IE 11 only sets a zero value of "detail" for click events that are "virtual".
77+ // However, IE 11 uses a zero value for all click events. For IE 11 we rely on
78+ // the quirk that it produces click events that are of type PointerEvent, and
79+ // where only the "virtual" click lacks a pointerType field.
7780export function isVirtualClick ( event : ReactDOMResponderEvent ) : boolean {
7881 const nativeEvent : any = event . nativeEvent ;
79- return (
80- nativeEvent . detail === 0 &&
81- nativeEvent . screenX === 0 &&
82- nativeEvent . screenY === 0 &&
83- nativeEvent . clientX === 0 &&
84- nativeEvent . clientY === 0
85- ) ;
82+ return nativeEvent . detail === 0 && ! nativeEvent . pointerType ;
8683}
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