//classie - class helper functions
$(function(){
    /*!
 * classie - class helper functions
 * from bonzo https://github.com/ded/bonzo
 * 
 * classie.has( elem, 'my-class' ) -> true/false
 * classie.add( elem, 'my-new-class' )
 * classie.remove( elem, 'my-unwanted-class' )
 * classie.toggle( elem, 'my-class' )
 */

/*jshint browser: true, strict: true, undef: true */
/*global define: false */

( function( window ) {

    'use strict';
    
    // class helper functions from bonzo https://github.com/ded/bonzo
    
    function classReg( className ) {
      return new RegExp("(^|\\s+)" + className + "(\\s+|$)");
    }
    
    // classList support for class management
    // altho to be fair, the api sucks because it won't accept multiple classes at once
    var hasClass, addClass, removeClass;
    
    if ( 'classList' in document.documentElement ) {
      hasClass = function( elem, c ) {
        return elem.classList.contains( c );
      };
      addClass = function( elem, c ) {
        elem.classList.add( c );
      };
      removeClass = function( elem, c ) {
        elem.classList.remove( c );
      };
    }
    else {
      hasClass = function( elem, c ) {
        return classReg( c ).test( elem.className );
      };
      addClass = function( elem, c ) {
        if ( !hasClass( elem, c ) ) {
          elem.className = elem.className + ' ' + c;
        }
      };
      removeClass = function( elem, c ) {
        elem.className = elem.className.replace( classReg( c ), ' ' );
      };
    }
    
    function toggleClass( elem, c ) {
      var fn = hasClass( elem, c ) ? removeClass : addClass;
      fn( elem, c );
    }
    
    var classie = {
      // full names
      hasClass: hasClass,
      addClass: addClass,
      removeClass: removeClass,
      toggleClass: toggleClass,
      // short names
      has: hasClass,
      add: addClass,
      remove: removeClass,
      toggle: toggleClass
    };
    
    // transport
    if ( typeof define === 'function' && define.amd ) {
      // AMD
      define( classie );
    } else {
      // browser global
      window.classie = classie;
    }
    
    })( window );


    (function() {
        // trim polyfill : https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/Trim
        if (!String.prototype.trim) {
                (function() {
                        // Make sure we trim BOM and NBSP
                        var rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g;
                        String.prototype.trim = function() {
                                return this.replace(rtrim, '');
                        };
                })();
        }

        [].slice.call( document.querySelectorAll( '.form-placeholder .form-control' ) ).forEach( function( inputEl ) {
                // in case the input is already filled..
                if( inputEl.value.trim() !== '' ) {
                        classie.add( inputEl.parentNode, 'input-focus' );
                }

                // events:
                inputEl.addEventListener( 'focus', onInputFocus );
                inputEl.addEventListener( 'blur', onInputBlur );
        } );

        function onInputFocus( ev ) {
                classie.add( ev.target.parentNode, 'input-focus' );
        }

        function onInputBlur( ev ) {
                if( ev.target.value.trim() === '' ) {
                        classie.remove( ev.target.parentNode, 'input-focus' );
                }
        }
})();
    


});