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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 | 296x 296x 296x 296x 296x | /** * Input/Textarea Autofocus Directive for Vue */ export default { /** * Set focus when element is rendered, but * is not visible, using IntersectionObserver * * @param {Element} el Target element */ inserted(el) { Eif ('IntersectionObserver' in window) { // Element visibility is dynamic, so we attach observer el.visibilityObserver = new IntersectionObserver((entries) => { entries.forEach((entry) => { // Combining `intersectionRatio > 0` and // element's `offsetParent` presence will // deteremine if element is truely visible if (entry.intersectionRatio > 0 && entry.target.offsetParent) { entry.target.focus(); } }); }); // Bind the observer. el.visibilityObserver.observe(el, { root: document.documentElement }); } }, /** * Detach observer on unbind hook. * * @param {Element} el Target element */ unbind(el) { Eif (el.visibilityObserver) { el.visibilityObserver.disconnect(); } }, }; |