/**
 * AngularUI - The companion suite for AngularJS
 * @version v0.3.2 - 2012-12-04
 * @link http://angular-ui.github.com
 * @license MIT License, http://www.opensource.org/licenses/MIT
 */

// READ: http://docs-next.angularjs.org/guide/ie
// element tags are statically defined in order to accommodate lazy-loading whereby directives are also unknown

// The ieshiv takes care of our ui.directives and AngularJS's ng-view, ng-include, ng-pluralize, ng-switch.
// However, IF you have custom directives that can be used as html tags (yours or someone else's) then
// add list of directives into <code>window.myCustomTags</code>

// <!--[if lte IE 8]>
//    <script>
//    window.myCustomTags = [ 'yourCustomDirective', 'somebodyElsesDirective' ]; // optional
//    </script>
//    <script src="build/angular-ui-ieshiv.js"></script>
// <![endif]-->

(function (exports) {

  var debug = window.ieShivDebug || false,
      tags = [ "ngInclude", "ngPluralize", "ngView", "ngSwitch", "uiCurrency", "uiCodemirror", "uiDate", "uiEvent",
                "uiKeypress", "uiKeyup", "uiKeydown", "uiMask", "uiMapInfoWindow", "uiMapMarker", "uiMapPolyline",
                "uiMapPolygon", "uiMapRectangle", "uiMapCircle", "uiMapGroundOverlay", "uiModal", "uiReset",
                "uiScrollfix", "uiSelect2", "uiShow", "uiHide", "uiToggle", "uiSortable", "uiTinymce"
                ];

  window.myCustomTags =  window.myCustomTags || []; // externally defined by developer using angular-ui directives
  tags.push.apply(tags, window.myCustomTags);

  var getIE = function () {
    // Returns the version of Internet Explorer or a -1
    // (indicating the use of another browser).
    var rv = -1; // Return value assumes failure.
    if (navigator.appName == 'Microsoft Internet Explorer') {
      var ua = navigator.userAgent;
      var re = new RegExp("MSIE ([0-9]{1,}[\\.0-9]{0,})");
      if (re.exec(ua) !== null) {
        rv = parseFloat(RegExp.$1);
      }
    }
    return rv;
  };

  var toCustomElements = function (str, delim) {
    var result = [];
    var dashed = str.replace(/([A-Z])/g, function ($1) {
      return " " + $1.toLowerCase();
    });
    var tokens = dashed.split(' ');
    var ns = tokens[0];
    var dirname = tokens.slice(1).join('-');

    // this is finite list and it seemed senseless to create a custom method
    result.push(ns + ":" + dirname);
    result.push(ns + "-" + dirname);
    result.push("x-" + ns + "-" + dirname);
    result.push("data-" + ns + "-" + dirname);
    return result;
  };

  var shiv = function () {
    for (var i = 0, tlen = tags.length; i < tlen; i++) {
      var customElements = toCustomElements(tags[i], ':');
      for (var j = 0, clen = customElements.length; j < clen; j++) {
        var customElement = customElements[j];
        document.createElement(customElement);
      }
    }
  };

  var ieVersion = getIE();

  if ((ieVersion > -1 && ieVersion < 9) || debug) {
    shiv();
  }

})(window);