{"version":3,"file":"index.mjs","sources":["../../../src/moj/common/index.mjs"],"sourcesContent":["/**\n * GOV.UK Frontend helpers\n *\n * @todo Import from GOV.UK Frontend\n */\n\n/**\n * Move focus to element\n *\n * Sets tabindex to -1 to make the element programmatically focusable,\n * but removes it on blur as the element doesn't need to be focused again.\n *\n * @template {HTMLElement} FocusElement\n * @param {FocusElement} $element - HTML element\n * @param {object} [options] - Handler options\n * @param {function(this: FocusElement): void} [options.onBeforeFocus] - Callback before focus\n * @param {function(this: FocusElement): void} [options.onBlur] - Callback on blur\n */\nexport function setFocus($element, options = {}) {\n  const isFocusable = $element.getAttribute('tabindex')\n\n  if (!isFocusable) {\n    $element.setAttribute('tabindex', '-1')\n  }\n\n  /**\n   * Handle element focus\n   */\n  function onFocus() {\n    $element.addEventListener('blur', onBlur, { once: true })\n  }\n\n  /**\n   * Handle element blur\n   */\n  function onBlur() {\n    options.onBlur?.call($element)\n\n    if (!isFocusable) {\n      $element.removeAttribute('tabindex')\n    }\n  }\n\n  // Add listener to reset element on blur, after focus\n  $element.addEventListener('focus', onFocus, { once: true })\n\n  // Focus element\n  options.onBeforeFocus?.call($element)\n  $element.focus()\n}\n"],"names":["setFocus","$element","options","_options$onBeforeFocu","isFocusable","getAttribute","setAttribute","onFocus","addEventListener","onBlur","once","_options$onBlur","call","removeAttribute","onBeforeFocus","focus"],"mappings":"AAAA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACO,SAASA,QAAQA,CAACC,QAAQ,EAAEC,OAAO,GAAG,EAAE,EAAE;AAAA,EAAA,IAAAC,qBAAA;AAC/C,EAAA,MAAMC,WAAW,GAAGH,QAAQ,CAACI,YAAY,CAAC,UAAU,CAAC;EAErD,IAAI,CAACD,WAAW,EAAE;AAChBH,IAAAA,QAAQ,CAACK,YAAY,CAAC,UAAU,EAAE,IAAI,CAAC;AACzC,EAAA;;AAEA;AACF;AACA;EACE,SAASC,OAAOA,GAAG;AACjBN,IAAAA,QAAQ,CAACO,gBAAgB,CAAC,MAAM,EAAEC,MAAM,EAAE;AAAEC,MAAAA,IAAI,EAAE;AAAK,KAAC,CAAC;AAC3D,EAAA;;AAEA;AACF;AACA;EACE,SAASD,MAAMA,GAAG;AAAA,IAAA,IAAAE,eAAA;IAChB,CAAAA,eAAA,GAAAT,OAAO,CAACO,MAAM,KAAA,IAAA,IAAdE,eAAA,CAAgBC,IAAI,CAACX,QAAQ,CAAC;IAE9B,IAAI,CAACG,WAAW,EAAE;AAChBH,MAAAA,QAAQ,CAACY,eAAe,CAAC,UAAU,CAAC;AACtC,IAAA;AACF,EAAA;;AAEA;AACAZ,EAAAA,QAAQ,CAACO,gBAAgB,CAAC,OAAO,EAAED,OAAO,EAAE;AAAEG,IAAAA,IAAI,EAAE;AAAK,GAAC,CAAC;;AAE3D;EACA,CAAAP,qBAAA,GAAAD,OAAO,CAACY,aAAa,KAAA,IAAA,IAArBX,qBAAA,CAAuBS,IAAI,CAACX,QAAQ,CAAC;EACrCA,QAAQ,CAACc,KAAK,EAAE;AAClB;;;;"}