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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";
function isLeftClick(event, allowKeyModifiers) {
return event.button === 0 && (allowKeyModifiers || noKeyModifiers(event));
}
function noKeyModifiers(event) {
return !event.ctrlKey && !event.shiftKey && !event.altKey && !event.metaKey;
}
function cancelEvent(event) {
event.stopPropagation();
event.preventDefault();
}
// Exports from this module
exports.isLeftClick = isLeftClick;
exports.cancelEvent = cancelEvent;
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