bootstrap-vue/src/components/table/helpers/text-selection-active.js

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import { getSel, isElement } from '../../../utils/dom'

// Helper to determine if a there is an active text selection on the document page
// Used to filter out click events caused by the mouse up at end of selection
//
// Accepts an element as only argument to test to see if selection overlaps or is
// contained within the element
const textSelectionActive = (el = document) => {
  const sel = getSel()
  return sel && sel.toString().trim() !== '' && sel.containsNode && isElement(el)
    ? /* istanbul ignore next */ sel.containsNode(el, true)
    : false
}

export default textSelectionActive