31 lines
1.1 KiB
JavaScript
31 lines
1.1 KiB
JavaScript
|
/*TRANSPILED*/goog.loadModule(function(exports) {'use strict';/*
|
||
|
|
|
||
|
|
Copyright The Closure Library Authors.
|
||
|
|
SPDX-License-Identifier: Apache-2.0
|
||
|
|
*/
|
||
|
|
'use strict';
|
||
|
|
goog.module("goog.events.BrowserFeature");
|
||
|
|
goog.module.declareLegacyNamespace();
|
||
|
|
const purify = fn => {
|
||
|
|
return {valueOf:fn}.valueOf();
|
||
|
|
};
|
||
|
|
exports = {TOUCH_ENABLED:"ontouchstart" in goog.global || !!(goog.global["document"] && document.documentElement && "ontouchstart" in document.documentElement) || !!(goog.global["navigator"] && (goog.global["navigator"]["maxTouchPoints"] || goog.global["navigator"]["msMaxTouchPoints"])), POINTER_EVENTS:"PointerEvent" in goog.global, MSPOINTER_EVENTS:false, PASSIVE_EVENTS:purify(function() {
|
||
|
|
if (!goog.global.addEventListener || !Object.defineProperty) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
var passive = false;
|
||
|
|
var options = Object.defineProperty({}, "passive", {get:function() {
|
||
|
|
passive = true;
|
||
|
|
}});
|
||
|
|
try {
|
||
|
|
goog.global.addEventListener("test", () => {
|
||
|
|
}, options);
|
||
|
|
goog.global.removeEventListener("test", () => {
|
||
|
|
}, options);
|
||
|
|
} catch (e) {
|
||
|
|
}
|
||
|
|
return passive;
|
||
|
|
})};
|
||
|
|
|
||
|
|
;return exports;});
|