if (['TEXTAREA', 'INPUT'].includes(document.activeElement.nodeName)) {
// it is in textarea, input
}
else if (document.activeElement.isContentEditable) {
// it is in contentEditable element
}
else {
// not above
}
window.getSelection()
const sel = window.getSelection();
const text = sel.toString();
if (!text.trim()) {
// there is no selection
// or selection is white-space
// or selection is in textarea, input
}
else if (document.activeElement.isContentEditable) {
// it is in contentEditable element
}
else {
// not above
}
