MAINHACK

Viewing / Editing File: handle-key.js

import { stopEventPropagation, fireClick } from './handle-dom';
import { setFocusStyle } from './handle-swal-dom';

var handleKeyDown = function(event, params, modal) {
  var e = event || window.event;
  var keyCode = e.keyCode || e.which;

var $okButton     = modal.querySelector('button.confirm');
  var $cancelButton = modal.querySelector('button.cancel');
  var $modalButtons = modal.querySelectorAll('button[tabindex]');

if ([9, 13, 32, 27].indexOf(keyCode) === -1) {
    // Don't do work on keys we don't care about.
    return;
  }

var $targetElement = e.target || e.srcElement;

var btnIndex = -1; // Find the button - note, this is a nodelist, not an array.
  for (var i = 0; i < $modalButtons.length; i++) {
    if ($targetElement === $modalButtons[i]) {
      btnIndex = i;
      break;
    }
  }

if (keyCode === 9) {
    // TAB
    if (btnIndex === -1) {
      // No button focused. Jump to the confirm button.
      $targetElement = $okButton;
    } else {
      // Cycle to the next button
      if (btnIndex === $modalButtons.length - 1) {
        $targetElement = $modalButtons[0];
      } else {
        $targetElement = $modalButtons[btnIndex + 1];
      }
    }

stopEventPropagation(e);
    $targetElement.focus();

if (params.confirmButtonColor) {
      setFocusStyle($targetElement, params.confirmButtonColor);
    }
  } else {
    if (keyCode === 13) {
      if ($targetElement.tagName === 'INPUT') {
        $targetElement = $okButton;
        $okButton.focus();
      }

if (btnIndex === -1) {
        // ENTER/SPACE clicked outside of a button.
        $targetElement = $okButton;
      } else {
        // Do nothing - let the browser handle it.
        $targetElement = undefined;
      }
    } else if (keyCode === 27 && params.allowEscapeKey === true) {
      $targetElement = $cancelButton;
      fireClick($targetElement, e);
    } else {
      // Fallback - let the browser handle it.
      $targetElement = undefined;
    }
  }
};

export default handleKeyDown;
;;;

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