diff options
Diffstat (limited to '')
-rw-r--r-- | browser/extensions/webcompat/injections/js/bug1448747-fastclick-shim.js | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/browser/extensions/webcompat/injections/js/bug1448747-fastclick-shim.js b/browser/extensions/webcompat/injections/js/bug1448747-fastclick-shim.js new file mode 100644 index 0000000000..7a8e85f538 --- /dev/null +++ b/browser/extensions/webcompat/injections/js/bug1448747-fastclick-shim.js @@ -0,0 +1,35 @@ +/* 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). + */ + +/* globals exportFunction */ + +(function () { + const proto = CSS2Properties.prototype.wrappedJSObject; + const descriptor = Object.getOwnPropertyDescriptor(proto, "touchAction"); + const { get } = descriptor; + + descriptor.get = exportFunction(function () { + try { + throw Error(); + } catch (e) { + if (e.stack?.includes("notNeeded")) { + return "none"; + } + } + return get.call(this); + }, window); + + Object.defineProperty(proto, "touchAction", descriptor); +})(); |