codecombat/vendor/scripts/fancy_select.js

// Generated by CoffeeScript 1.4.0
(function() {
  var $;

  $ = window.jQuery || window.Zepto || window.$;

  $.fn.fancySelect = function(opts) {
    var isiOS, settings;
    if (opts == null) {
      opts = {};
    }
    settings = $.extend({
      forceiOS: false,
      includeBlank: false
    }, opts);
    isiOS = !!navigator.userAgent.match(/iP(hone|od|ad)/i);
    return this.each(function() {
      var copyOptionsToList, disabled, options, sel, trigger, updateTriggerText, wrapper;
      sel = $(this);
      if (sel.hasClass('fancified') || sel[0].tagName !== 'SELECT') {
        return;
      }
      sel.addClass('fancified');
      sel.css({
        width: 1,
        height: 1,
        display: 'block',
        position: 'absolute',
        top: 0,
        left: 0,
        opacity: 0
      });
      sel.wrap('<div class="fancy-select">');
      wrapper = sel.parent();
      if (sel.data('class')) {
        wrapper.addClass(sel.data('class'));
      }
      wrapper.append('<div class="trigger">');
      if (!(isiOS && !settings.forceiOS)) {
        wrapper.append('<ul class="options">');
      }
      trigger = wrapper.find('.trigger');
      options = wrapper.find('.options');
      disabled = sel.prop('disabled');
      if (disabled) {
        wrapper.addClass('disabled');
      }
      updateTriggerText = function() {
        return trigger.text(sel.find(':selected').text());
      };
      sel.on('blur', function() {
        if (trigger.hasClass('open')) {
          return setTimeout(function() {
            return trigger.trigger('close');
          }, 120);
        }
      });
      trigger.on('close', function() {
        trigger.removeClass('open');
        return options.removeClass('open');
      });
      trigger.on('click', function() {
        var offParent, parent;
        if (!disabled) {
          trigger.toggleClass('open');
          if (isiOS && !settings.forceiOS) {
            if (trigger.hasClass('open')) {
              return sel.focus();
            }
          } else {
            if (trigger.hasClass('open')) {
              parent = trigger.parent();
              offParent = parent.offsetParent();
              if ((parent.offset().top + parent.outerHeight() + options.outerHeight() + 20) > $(window).height() + $(window).scrollTop()) {
                options.addClass('overflowing');
              } else {
                options.removeClass('overflowing');
              }
            }
            options.toggleClass('open');
            if (!isiOS) {
              return sel.focus();
            }
          }
        }
      });
      sel.on('enable', function() {
        sel.prop('disabled', false);
        wrapper.removeClass('disabled');
        disabled = false;
        return copyOptionsToList();
      });
      sel.on('disable', function() {
        sel.prop('disabled', true);
        wrapper.addClass('disabled');
        return disabled = true;
      });
      sel.on('change', function(e) {
        if (e.originalEvent && e.originalEvent.isTrusted) {
          return e.stopPropagation();
        } else {
          return updateTriggerText();
        }
      });
      sel.on('keydown', function(e) {
        var hovered, newHovered, w;
        w = e.which;
        hovered = options.find('.hover');
        hovered.removeClass('hover');
        if (!options.hasClass('open')) {
          if (w === 13 || w === 32 || w === 38 || w === 40) {
            e.preventDefault();
            return trigger.trigger('click');
          }
        } else {
          if (w === 38) {
            e.preventDefault();
            if (hovered.length && hovered.index() > 0) {
              hovered.prev().addClass('hover');
            } else {
              options.find('li:last-child').addClass('hover');
            }
          } else if (w === 40) {
            e.preventDefault();
            if (hovered.length && hovered.index() < options.find('li').length - 1) {
              hovered.next().addClass('hover');
            } else {
              options.find('li:first-child').addClass('hover');
            }
          } else if (w === 27) {
            e.preventDefault();
            trigger.trigger('click');
          } else if (w === 13 || w === 32) {
            e.preventDefault();
            hovered.trigger('click');
          } else if (w === 9) {
            if (trigger.hasClass('open')) {
              trigger.trigger('close');
            }
          }
          newHovered = options.find('.hover');
          if (newHovered.length) {
            options.scrollTop(0);
            return options.scrollTop(newHovered.position().top - 12);
          }
        }
      });
      options.on('click', 'li', function(e) {
        sel.val($(this).data('value'));
        if (!isiOS) {
          sel.trigger('blur').trigger('focus');
        }
        options.find('.selected').removeClass('selected');
        $(e.currentTarget).addClass('selected');
        return sel.val($(this).data('value')).trigger('change').trigger('blur').trigger('focus');
      });
      options.on('mouseenter', 'li', function() {
        var hovered, nowHovered;
        nowHovered = $(this);
        hovered = options.find('.hover');
        hovered.removeClass('hover');
        return nowHovered.addClass('hover');
      });
      options.on('mouseleave', 'li', function() {
        return options.find('.hover').removeClass('hover');
      });
      copyOptionsToList = function() {
        var selOpts;
        updateTriggerText();
        if (isiOS && !settings.forceiOS) {
          return;
        }
        selOpts = sel.find('option');
        return sel.find('option').each(function(i, opt) {
          opt = $(opt);
          if (!opt.prop('disabled') && (opt.val() || settings.includeBlank)) {
            if (opt.prop('selected')) {
              return options.append("<li data-value=\"" + (opt.val()) + "\" class=\"selected\">" + (opt.text()) + "</li>");
            } else {
              return options.append("<li data-value=\"" + (opt.val()) + "\">" + (opt.text()) + "</li>");
            }
          }
        });
      };
      sel.on('update', function() {
        wrapper.find('.options').empty();
        return copyOptionsToList();
      });
      return copyOptionsToList();
    });
  };

}).call(this);