// 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 (window, document) {
  "use strict";

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

    // If a token is just a single name (i.e. no namespace) then we juse define the elements the name given
    if (tokens.length === 1) {
      var name = tokens[0];

      result.push(name);
      result.push("x-" + name);
      result.push("data-" + name);
    } else {
      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;
  };

  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);
    }
  }

})(window, document);
