Function keyup

Picviewer CE+/dist.user.js:27440–27457

(event)

        }

        function keyup(event) {
            keypressing = false;
            let isFuncKey = !event.isTrusted || event.key == 'Alt' || event.key == 'Control' || event.key == 'Meta';
            if(isFuncKey && (prefs.floatBar.globalkeys.type == "hold" || !checkPreview(event)) && (uniqueImgWin && !uniqueImgWin.removed)){
                clearTimeout(checkFloatBarTimer);
                if(prefs.floatBar.globalkeys.closeAfterPreview){
                    if (uniqueImgWin) {
                        uniqueImgWin.remove();
                    }
                }else{
                    uniqueImgWin.focus();
                    uniqueImgWin.imgWindow.classList.remove("pv-pic-window-transition-all");
                    uniqueImgWin.imgWindow.classList.remove("preview");
                    uniqueImgWin.previewed=true;
                    uniqueImgWin = null;
                }
            }
        }

        function createEleFromJson(json) {
            let collection = document.createDocumentFragment();