ratchet/lib/js/modals.js

/* ----------------------------------
 * MODAL v1.0.0
 * Licensed under The MIT License
 * http://opensource.org/licenses/MIT
 * ---------------------------------- */

!function () {
  findModals = function ( target ) {
    var i, 
        modals = document.querySelectorAll( 'a' );

    for ( ; target && target !== document; target = target.parentNode ) {
      for ( i = modals.length; i--; ) { if ( modals[i] === target ) return target; }
    }
  };

  getModal = function ( event ) {
    var modal,
        modalToggle = findModals( event.target );

    if ( !modalToggle || !modalToggle.hash ) return;

    modal = document.querySelector( modalToggle.hash )
    
    if ( !modal ) return;
    return modal;
  };

  window.addEventListener( 'touchend', function ( event ) {
    var modal = getModal( event );

    if ( !modal ) return; 
    modal.offsetHeight;
    modal.classList.toggle( 'active' );
  } );

  window.addEventListener( 'click', function ( event ) { 
    if ( getModal( event ) ) event.preventDefault();
  } );
}();