Function modality

codebase/sources/dhtmlxscheduler.es.js:8677–8685

(mode)

    scheduler2.event(document, "keydown", modal_key, true);
  }
  function modality(mode) {
    if (!modality.cover) {
      modality.cover = document.createElement("div");
      scheduler2.event(modality.cover, "keydown", modal_key);
      modality.cover.className = "dhx_modal_cover";
      document.body.appendChild(modality.cover);
    }
    modality.cover.style.display = mode ? "inline-block" : "none";
  }
  function button(text, classValue, result) {
    var buttonAriaAttrs = scheduler2._waiAria.messageButtonAttrString(text);
    var name = (classValue || "").toLowerCase().replace(/ /g, "_");