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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
/**
* Bug 1448747 - Neutralize FastClick
*
* The patch is applied on sites using FastClick library
* to make sure `FastClick.notNeeded` returns `true`.
* This allows to disable FastClick and fix various breakage caused
* by the library (mainly non-functioning drop-down lists).
*/
if (!window.__firefoxWebCompatFixFastclick) {
Object.defineProperty(window, "__firefoxWebCompatFixFastclick", {
configurable: false,
value: true,
});
console.info(
"FastClick is being disabled for compatibility reasons. See https://bugzilla.mozilla.org/show_bug.cgi?id=1448747 for details."
);
const proto = (window.CSSStyleProperties ?? window.CSS2Properties).prototype;
const descriptor = Object.getOwnPropertyDescriptor(proto, "touchAction");
const { get } = descriptor;
descriptor.get = function () {
if (new Error().stack?.includes("notNeeded")) {
return "none";
}
return get.call(this);
};
Object.defineProperty(proto, "touchAction", descriptor);
}