x-tag-components.js

// DOMTokenList polyfill for IE9
(function () {

if (typeof window.Element === "undefined" || "classList" in document.documentElement) return;

var prototype = Array.prototype,
    indexOf = prototype.indexOf,
    slice = prototype.slice,
    push = prototype.push,
    splice = prototype.splice,
    join = prototype.join;

function DOMTokenList(el) {
  this._element = el;
  if (el.className != this._classCache) {
    this._classCache = el.className;

    if (!this._classCache) return;

      // The className needs to be trimmed and split on whitespace
      // to retrieve a list of classes.
      var classes = this._classCache.replace(/^\s+|\s+$/g,'').split(/\s+/),
        i;
    for (i = 0; i < classes.length; i++) {
      push.call(this, classes[i]);
    }
  }
};

function setToClassName(el, classes) {
  el.className = classes.join(' ');
}

DOMTokenList.prototype = {
  add: function(token) {
    if(this.contains(token)) return;
    push.call(this, token);
    setToClassName(this._element, slice.call(this, 0));
  },
  contains: function(token) {
    return indexOf.call(this, token) !== -1;
  },
  item: function(index) {
    return this[index] || null;
  },
  remove: function(token) {
    var i = indexOf.call(this, token);
     if (i === -1) {
       return;
     }
    splice.call(this, i, 1);
    setToClassName(this._element, slice.call(this, 0));
  },
  toString: function() {
    return join.call(this, ' ');
  },
  toggle: function(token) {
    if (indexOf.call(this, token) === -1) {
      this.add(token);
    } else {
      this.remove(token);
    }
  }
};

window.DOMTokenList = DOMTokenList;

function defineElementGetter (obj, prop, getter) {
  if (Object.defineProperty) {
    Object.defineProperty(obj, prop,{
      get : getter
    })
  } else {
    obj.__defineGetter__(prop, getter);
  }
}

defineElementGetter(Element.prototype, 'classList', function () {
  return new DOMTokenList(this);
});

})();


/**
 * @license
 * Copyright (c) 2014 The Polymer Project Authors. All rights reserved.
 * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
 * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
 * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
 * Code distributed by Google as part of the polymer project is also
 * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
 */
// @version 0.7.20
(function() {
  window.WebComponents = window.WebComponents || {
    flags: {}
  };
  var file = "webcomponents-lite.js";
  var script = document.querySelector('script[src*="' + file + '"]');
  var flags = {};
  if (!flags.noOpts) {
    location.search.slice(1).split("&").forEach(function(option) {
      var parts = option.split("=");
      var match;
      if (parts[0] && (match = parts[0].match(/wc-(.+)/))) {
        flags[match[1]] = parts[1] || true;
      }
    });
    if (script) {
      for (var i = 0, a; a = script.attributes[i]; i++) {
        if (a.name !== "src") {
          flags[a.name] = a.value || true;
        }
      }
    }
    if (flags.log && flags.log.split) {
      var parts = flags.log.split(",");
      flags.log = {};
      parts.forEach(function(f) {
        flags.log[f] = true;
      });
    } else {
      flags.log = {};
    }
  }
  if (flags.register) {
    window.CustomElements = window.CustomElements || {
      flags: {}
    };
    window.CustomElements.flags.register = flags.register;
  }
  WebComponents.flags = flags;
})();

(function(scope) {
  "use strict";
  var hasWorkingUrl = false;
  if (!scope.forceJURL) {
    try {
      var u = new URL("b", "http://a");
      u.pathname = "c%20d";
      hasWorkingUrl = u.href === "http://a/c%20d";
    } catch (e) {}
  }
  if (hasWorkingUrl) return;
  var relative = Object.create(null);
  relative["ftp"] = 21;
  relative["file"] = 0;
  relative["gopher"] = 70;
  relative["http"] = 80;
  relative["https"] = 443;
  relative["ws"] = 80;
  relative["wss"] = 443;
  var relativePathDotMapping = Object.create(null);
  relativePathDotMapping["%2e"] = ".";
  relativePathDotMapping[".%2e"] = "..";
  relativePathDotMapping["%2e."] = "..";
  relativePathDotMapping["%2e%2e"] = "..";
  function isRelativeScheme(scheme) {
    return relative[scheme] !== undefined;
  }
  function invalid() {
    clear.call(this);
    this._isInvalid = true;
  }
  function IDNAToASCII(h) {
    if ("" == h) {
      invalid.call(this);
    }
    return h.toLowerCase();
  }
  function percentEscape(c) {
    var unicode = c.charCodeAt(0);
    if (unicode > 32 && unicode < 127 && [ 34, 35, 60, 62, 63, 96 ].indexOf(unicode) == -1) {
      return c;
    }
    return encodeURIComponent(c);
  }
  function percentEscapeQuery(c) {
    var unicode = c.charCodeAt(0);
    if (unicode > 32 && unicode < 127 && [ 34, 35, 60, 62, 96 ].indexOf(unicode) == -1) {
      return c;
    }
    return encodeURIComponent(c);
  }
  var EOF = undefined, ALPHA = /[a-zA-Z]/, ALPHANUMERIC = /[a-zA-Z0-9\+\-\.]/;
  function parse(input, stateOverride, base) {
    function err(message) {
      errors.push(message);
    }
    var state = stateOverride || "scheme start", cursor = 0, buffer = "", seenAt = false, seenBracket = false, errors = [];
    loop: while ((input[cursor - 1] != EOF || cursor == 0) && !this._isInvalid) {
      var c = input[cursor];
      switch (state) {
       case "scheme start":
        if (c && ALPHA.test(c)) {
          buffer += c.toLowerCase();
          state = "scheme";
        } else if (!stateOverride) {
          buffer = "";
          state = "no scheme";
          continue;
        } else {
          err("Invalid scheme.");
          break loop;
        }
        break;

       case "scheme":
        if (c && ALPHANUMERIC.test(c)) {
          buffer += c.toLowerCase();
        } else if (":" == c) {
          this._scheme = buffer;
          buffer = "";
          if (stateOverride) {
            break loop;
          }
          if (isRelativeScheme(this._scheme)) {
            this._isRelative = true;
          }
          if ("file" == this._scheme) {
            state = "relative";
          } else if (this._isRelative && base && base._scheme == this._scheme) {
            state = "relative or authority";
          } else if (this._isRelative) {
            state = "authority first slash";
          } else {
            state = "scheme data";
          }
        } else if (!stateOverride) {
          buffer = "";
          cursor = 0;
          state = "no scheme";
          continue;
        } else if (EOF == c) {
          break loop;
        } else {
          err("Code point not allowed in scheme: " + c);
          break loop;
        }
        break;

       case "scheme data":
        if ("?" == c) {
          this._query = "?";
          state = "query";
        } else if ("#" == c) {
          this._fragment = "#";
          state = "fragment";
        } else {
          if (EOF != c && "	" != c && "\n" != c && "\r" != c) {
            this._schemeData += percentEscape(c);
          }
        }
        break;

       case "no scheme":
        if (!base || !isRelativeScheme(base._scheme)) {
          err("Missing scheme.");
          invalid.call(this);
        } else {
          state = "relative";
          continue;
        }
        break;

       case "relative or authority":
        if ("/" == c && "/" == input[cursor + 1]) {
          state = "authority ignore slashes";
        } else {
          err("Expected /, got: " + c);
          state = "relative";
          continue;
        }
        break;

       case "relative":
        this._isRelative = true;
        if ("file" != this._scheme) this._scheme = base._scheme;
        if (EOF == c) {
          this._host = base._host;
          this._port = base._port;
          this._path = base._path.slice();
          this._query = base._query;
          this._username = base._username;
          this._password = base._password;
          break loop;
        } else if ("/" == c || "\\" == c) {
          if ("\\" == c) err("\\ is an invalid code point.");
          state = "relative slash";
        } else if ("?" == c) {
          this._host = base._host;
          this._port = base._port;
          this._path = base._path.slice();
          this._query = "?";
          this._username = base._username;
          this._password = base._password;
          state = "query";
        } else if ("#" == c) {
          this._host = base._host;
          this._port = base._port;
          this._path = base._path.slice();
          this._query = base._query;
          this._fragment = "#";
          this._username = base._username;
          this._password = base._password;
          state = "fragment";
        } else {
          var nextC = input[cursor + 1];
          var nextNextC = input[cursor + 2];
          if ("file" != this._scheme || !ALPHA.test(c) || nextC != ":" && nextC != "|" || EOF != nextNextC && "/" != nextNextC && "\\" != nextNextC && "?" != nextNextC && "#" != nextNextC) {
            this._host = base._host;
            this._port = base._port;
            this._username = base._username;
            this._password = base._password;
            this._path = base._path.slice();
            this._path.pop();
          }
          state = "relative path";
          continue;
        }
        break;

       case "relative slash":
        if ("/" == c || "\\" == c) {
          if ("\\" == c) {
            err("\\ is an invalid code point.");
          }
          if ("file" == this._scheme) {
            state = "file host";
          } else {
            state = "authority ignore slashes";
          }
        } else {
          if ("file" != this._scheme) {
            this._host = base._host;
            this._port = base._port;
            this._username = base._username;
            this._password = base._password;
          }
          state = "relative path";
          continue;
        }
        break;

       case "authority first slash":
        if ("/" == c) {
          state = "authority second slash";
        } else {
          err("Expected '/', got: " + c);
          state = "authority ignore slashes";
          continue;
        }
        break;

       case "authority second slash":
        state = "authority ignore slashes";
        if ("/" != c) {
          err("Expected '/', got: " + c);
          continue;
        }
        break;

       case "authority ignore slashes":
        if ("/" != c && "\\" != c) {
          state = "authority";
          continue;
        } else {
          err("Expected authority, got: " + c);
        }
        break;

       case "authority":
        if ("@" == c) {
          if (seenAt) {
            err("@ already seen.");
            buffer += "%40";
          }
          seenAt = true;
          for (var i = 0; i < buffer.length; i++) {
            var cp = buffer[i];
            if ("	" == cp || "\n" == cp || "\r" == cp) {
              err("Invalid whitespace in authority.");
              continue;
            }
            if (":" == cp && null === this._password) {
              this._password = "";
              continue;
            }
            var tempC = percentEscape(cp);
            null !== this._password ? this._password += tempC : this._username += tempC;
          }
          buffer = "";
        } else if (EOF == c || "/" == c || "\\" == c || "?" == c || "#" == c) {
          cursor -= buffer.length;
          buffer = "";
          state = "host";
          continue;
        } else {
          buffer += c;
        }
        break;

       case "file host":
        if (EOF == c || "/" == c || "\\" == c || "?" == c || "#" == c) {
          if (buffer.length == 2 && ALPHA.test(buffer[0]) && (buffer[1] == ":" || buffer[1] == "|")) {
            state = "relative path";
          } else if (buffer.length == 0) {
            state = "relative path start";
          } else {
            this._host = IDNAToASCII.call(this, buffer);
            buffer = "";
            state = "relative path start";
          }
          continue;
        } else if ("	" == c || "\n" == c || "\r" == c) {
          err("Invalid whitespace in file host.");
        } else {
          buffer += c;
        }
        break;

       case "host":
       case "hostname":
        if (":" == c && !seenBracket) {
          this._host = IDNAToASCII.call(this, buffer);
          buffer = "";
          state = "port";
          if ("hostname" == stateOverride) {
            break loop;
          }
        } else if (EOF == c || "/" == c || "\\" == c || "?" == c || "#" == c) {
          this._host = IDNAToASCII.call(this, buffer);
          buffer = "";
          state = "relative path start";
          if (stateOverride) {
            break loop;
          }
          continue;
        } else if ("	" != c && "\n" != c && "\r" != c) {
          if ("[" == c) {
            seenBracket = true;
          } else if ("]" == c) {
            seenBracket = false;
          }
          buffer += c;
        } else {
          err("Invalid code point in host/hostname: " + c);
        }
        break;

       case "port":
        if (/[0-9]/.test(c)) {
          buffer += c;
        } else if (EOF == c || "/" == c || "\\" == c || "?" == c || "#" == c || stateOverride) {
          if ("" != buffer) {
            var temp = parseInt(buffer, 10);
            if (temp != relative[this._scheme]) {
              this._port = temp + "";
            }
            buffer = "";
          }
          if (stateOverride) {
            break loop;
          }
          state = "relative path start";
          continue;
        } else if ("	" == c || "\n" == c || "\r" == c) {
          err("Invalid code point in port: " + c);
        } else {
          invalid.call(this);
        }
        break;

       case "relative path start":
        if ("\\" == c) err("'\\' not allowed in path.");
        state = "relative path";
        if ("/" != c && "\\" != c) {
          continue;
        }
        break;

       case "relative path":
        if (EOF == c || "/" == c || "\\" == c || !stateOverride && ("?" == c || "#" == c)) {
          if ("\\" == c) {
            err("\\ not allowed in relative path.");
          }
          var tmp;
          if (tmp = relativePathDotMapping[buffer.toLowerCase()]) {
            buffer = tmp;
          }
          if (".." == buffer) {
            this._path.pop();
            if ("/" != c && "\\" != c) {
              this._path.push("");
            }
          } else if ("." == buffer && "/" != c && "\\" != c) {
            this._path.push("");
          } else if ("." != buffer) {
            if ("file" == this._scheme && this._path.length == 0 && buffer.length == 2 && ALPHA.test(buffer[0]) && buffer[1] == "|") {
              buffer = buffer[0] + ":";
            }
            this._path.push(buffer);
          }
          buffer = "";
          if ("?" == c) {
            this._query = "?";
            state = "query";
          } else if ("#" == c) {
            this._fragment = "#";
            state = "fragment";
          }
        } else if ("	" != c && "\n" != c && "\r" != c) {
          buffer += percentEscape(c);
        }
        break;

       case "query":
        if (!stateOverride && "#" == c) {
          this._fragment = "#";
          state = "fragment";
        } else if (EOF != c && "	" != c && "\n" != c && "\r" != c) {
          this._query += percentEscapeQuery(c);
        }
        break;

       case "fragment":
        if (EOF != c && "	" != c && "\n" != c && "\r" != c) {
          this._fragment += c;
        }
        break;
      }
      cursor++;
    }
  }
  function clear() {
    this._scheme = "";
    this._schemeData = "";
    this._username = "";
    this._password = null;
    this._host = "";
    this._port = "";
    this._path = [];
    this._query = "";
    this._fragment = "";
    this._isInvalid = false;
    this._isRelative = false;
  }
  function jURL(url, base) {
    if (base !== undefined && !(base instanceof jURL)) base = new jURL(String(base));
    this._url = url;
    clear.call(this);
    var input = url.replace(/^[ \t\r\n\f]+|[ \t\r\n\f]+$/g, "");
    parse.call(this, input, null, base);
  }
  jURL.prototype = {
    toString: function() {
      return this.href;
    },
    get href() {
      if (this._isInvalid) return this._url;
      var authority = "";
      if ("" != this._username || null != this._password) {
        authority = this._username + (null != this._password ? ":" + this._password : "") + "@";
      }
      return this.protocol + (this._isRelative ? "//" + authority + this.host : "") + this.pathname + this._query + this._fragment;
    },
    set href(href) {
      clear.call(this);
      parse.call(this, href);
    },
    get protocol() {
      return this._scheme + ":";
    },
    set protocol(protocol) {
      if (this._isInvalid) return;
      parse.call(this, protocol + ":", "scheme start");
    },
    get host() {
      return this._isInvalid ? "" : this._port ? this._host + ":" + this._port : this._host;
    },
    set host(host) {
      if (this._isInvalid || !this._isRelative) return;
      parse.call(this, host, "host");
    },
    get hostname() {
      return this._host;
    },
    set hostname(hostname) {
      if (this._isInvalid || !this._isRelative) return;
      parse.call(this, hostname, "hostname");
    },
    get port() {
      return this._port;
    },
    set port(port) {
      if (this._isInvalid || !this._isRelative) return;
      parse.call(this, port, "port");
    },
    get pathname() {
      return this._isInvalid ? "" : this._isRelative ? "/" + this._path.join("/") : this._schemeData;
    },
    set pathname(pathname) {
      if (this._isInvalid || !this._isRelative) return;
      this._path = [];
      parse.call(this, pathname, "relative path start");
    },
    get search() {
      return this._isInvalid || !this._query || "?" == this._query ? "" : this._query;
    },
    set search(search) {
      if (this._isInvalid || !this._isRelative) return;
      this._query = "?";
      if ("?" == search[0]) search = search.slice(1);
      parse.call(this, search, "query");
    },
    get hash() {
      return this._isInvalid || !this._fragment || "#" == this._fragment ? "" : this._fragment;
    },
    set hash(hash) {
      if (this._isInvalid) return;
      this._fragment = "#";
      if ("#" == hash[0]) hash = hash.slice(1);
      parse.call(this, hash, "fragment");
    },
    get origin() {
      var host;
      if (this._isInvalid || !this._scheme) {
        return "";
      }
      switch (this._scheme) {
       case "data":
       case "file":
       case "javascript":
       case "mailto":
        return "null";
      }
      host = this.host;
      if (!host) {
        return "";
      }
      return this._scheme + "://" + host;
    }
  };
  var OriginalURL = scope.URL;
  if (OriginalURL) {
    jURL.createObjectURL = function(blob) {
      return OriginalURL.createObjectURL.apply(OriginalURL, arguments);
    };
    jURL.revokeObjectURL = function(url) {
      OriginalURL.revokeObjectURL(url);
    };
  }
  scope.URL = jURL;
})(self);

if (typeof WeakMap === "undefined") {
  (function() {
    var defineProperty = Object.defineProperty;
    var counter = Date.now() % 1e9;
    var WeakMap = function() {
      this.name = "__st" + (Math.random() * 1e9 >>> 0) + (counter++ + "__");
    };
    WeakMap.prototype = {
      set: function(key, value) {
        var entry = key[this.name];
        if (entry && entry[0] === key) entry[1] = value; else defineProperty(key, this.name, {
          value: [ key, value ],
          writable: true
        });
        return this;
      },
      get: function(key) {
        var entry;
        return (entry = key[this.name]) && entry[0] === key ? entry[1] : undefined;
      },
      "delete": function(key) {
        var entry = key[this.name];
        if (!entry || entry[0] !== key) return false;
        entry[0] = entry[1] = undefined;
        return true;
      },
      has: function(key) {
        var entry = key[this.name];
        if (!entry) return false;
        return entry[0] === key;
      }
    };
    window.WeakMap = WeakMap;
  })();
}

(function(global) {
  if (global.JsMutationObserver) {
    return;
  }
  var registrationsTable = new WeakMap();
  var setImmediate;
  if (/Trident|Edge/.test(navigator.userAgent)) {
    setImmediate = setTimeout;
  } else if (window.setImmediate) {
    setImmediate = window.setImmediate;
  } else {
    var setImmediateQueue = [];
    var sentinel = String(Math.random());
    window.addEventListener("message", function(e) {
      if (e.data === sentinel) {
        var queue = setImmediateQueue;
        setImmediateQueue = [];
        queue.forEach(function(func) {
          func();
        });
      }
    });
    setImmediate = function(func) {
      setImmediateQueue.push(func);
      window.postMessage(sentinel, "*");
    };
  }
  var isScheduled = false;
  var scheduledObservers = [];
  function scheduleCallback(observer) {
    scheduledObservers.push(observer);
    if (!isScheduled) {
      isScheduled = true;
      setImmediate(dispatchCallbacks);
    }
  }
  function wrapIfNeeded(node) {
    return window.ShadowDOMPolyfill && window.ShadowDOMPolyfill.wrapIfNeeded(node) || node;
  }
  function dispatchCallbacks() {
    isScheduled = false;
    var observers = scheduledObservers;
    scheduledObservers = [];
    observers.sort(function(o1, o2) {
      return o1.uid_ - o2.uid_;
    });
    var anyNonEmpty = false;
    observers.forEach(function(observer) {
      var queue = observer.takeRecords();
      removeTransientObserversFor(observer);
      if (queue.length) {
        observer.callback_(queue, observer);
        anyNonEmpty = true;
      }
    });
    if (anyNonEmpty) dispatchCallbacks();
  }
  function removeTransientObserversFor(observer) {
    observer.nodes_.forEach(function(node) {
      var registrations = registrationsTable.get(node);
      if (!registrations) return;
      registrations.forEach(function(registration) {
        if (registration.observer === observer) registration.removeTransientObservers();
      });
    });
  }
  function forEachAncestorAndObserverEnqueueRecord(target, callback) {
    for (var node = target; node; node = node.parentNode) {
      var registrations = registrationsTable.get(node);
      if (registrations) {
        for (var j = 0; j < registrations.length; j++) {
          var registration = registrations[j];
          var options = registration.options;
          if (node !== target && !options.subtree) continue;
          var record = callback(options);
          if (record) registration.enqueue(record);
        }
      }
    }
  }
  var uidCounter = 0;
  function JsMutationObserver(callback) {
    this.callback_ = callback;
    this.nodes_ = [];
    this.records_ = [];
    this.uid_ = ++uidCounter;
  }
  JsMutationObserver.prototype = {
    observe: function(target, options) {
      target = wrapIfNeeded(target);
      if (!options.childList && !options.attributes && !options.characterData || options.attributeOldValue && !options.attributes || options.attributeFilter && options.attributeFilter.length && !options.attributes || options.characterDataOldValue && !options.characterData) {
        throw new SyntaxError();
      }
      var registrations = registrationsTable.get(target);
      if (!registrations) registrationsTable.set(target, registrations = []);
      var registration;
      for (var i = 0; i < registrations.length; i++) {
        if (registrations[i].observer === this) {
          registration = registrations[i];
          registration.removeListeners();
          registration.options = options;
          break;
        }
      }
      if (!registration) {
        registration = new Registration(this, target, options);
        registrations.push(registration);
        this.nodes_.push(target);
      }
      registration.addListeners();
    },
    disconnect: function() {
      this.nodes_.forEach(function(node) {
        var registrations = registrationsTable.get(node);
        for (var i = 0; i < registrations.length; i++) {
          var registration = registrations[i];
          if (registration.observer === this) {
            registration.removeListeners();
            registrations.splice(i, 1);
            break;
          }
        }
      }, this);
      this.records_ = [];
    },
    takeRecords: function() {
      var copyOfRecords = this.records_;
      this.records_ = [];
      return copyOfRecords;
    }
  };
  function MutationRecord(type, target) {
    this.type = type;
    this.target = target;
    this.addedNodes = [];
    this.removedNodes = [];
    this.previousSibling = null;
    this.nextSibling = null;
    this.attributeName = null;
    this.attributeNamespace = null;
    this.oldValue = null;
  }
  function copyMutationRecord(original) {
    var record = new MutationRecord(original.type, original.target);
    record.addedNodes = original.addedNodes.slice();
    record.removedNodes = original.removedNodes.slice();
    record.previousSibling = original.previousSibling;
    record.nextSibling = original.nextSibling;
    record.attributeName = original.attributeName;
    record.attributeNamespace = original.attributeNamespace;
    record.oldValue = original.oldValue;
    return record;
  }
  var currentRecord, recordWithOldValue;
  function getRecord(type, target) {
    return currentRecord = new MutationRecord(type, target);
  }
  function getRecordWithOldValue(oldValue) {
    if (recordWithOldValue) return recordWithOldValue;
    recordWithOldValue = copyMutationRecord(currentRecord);
    recordWithOldValue.oldValue = oldValue;
    return recordWithOldValue;
  }
  function clearRecords() {
    currentRecord = recordWithOldValue = undefined;
  }
  function recordRepresentsCurrentMutation(record) {
    return record === recordWithOldValue || record === currentRecord;
  }
  function selectRecord(lastRecord, newRecord) {
    if (lastRecord === newRecord) return lastRecord;
    if (recordWithOldValue && recordRepresentsCurrentMutation(lastRecord)) return recordWithOldValue;
    return null;
  }
  function Registration(observer, target, options) {
    this.observer = observer;
    this.target = target;
    this.options = options;
    this.transientObservedNodes = [];
  }
  Registration.prototype = {
    enqueue: function(record) {
      var records = this.observer.records_;
      var length = records.length;
      if (records.length > 0) {
        var lastRecord = records[length - 1];
        var recordToReplaceLast = selectRecord(lastRecord, record);
        if (recordToReplaceLast) {
          records[length - 1] = recordToReplaceLast;
          return;
        }
      } else {
        scheduleCallback(this.observer);
      }
      records[length] = record;
    },
    addListeners: function() {
      this.addListeners_(this.target);
    },
    addListeners_: function(node) {
      var options = this.options;
      if (options.attributes) node.addEventListener("DOMAttrModified", this, true);
      if (options.characterData) node.addEventListener("DOMCharacterDataModified", this, true);
      if (options.childList) node.addEventListener("DOMNodeInserted", this, true);
      if (options.childList || options.subtree) node.addEventListener("DOMNodeRemoved", this, true);
    },
    removeListeners: function() {
      this.removeListeners_(this.target);
    },
    removeListeners_: function(node) {
      var options = this.options;
      if (options.attributes) node.removeEventListener("DOMAttrModified", this, true);
      if (options.characterData) node.removeEventListener("DOMCharacterDataModified", this, true);
      if (options.childList) node.removeEventListener("DOMNodeInserted", this, true);
      if (options.childList || options.subtree) node.removeEventListener("DOMNodeRemoved", this, true);
    },
    addTransientObserver: function(node) {
      if (node === this.target) return;
      this.addListeners_(node);
      this.transientObservedNodes.push(node);
      var registrations = registrationsTable.get(node);
      if (!registrations) registrationsTable.set(node, registrations = []);
      registrations.push(this);
    },
    removeTransientObservers: function() {
      var transientObservedNodes = this.transientObservedNodes;
      this.transientObservedNodes = [];
      transientObservedNodes.forEach(function(node) {
        this.removeListeners_(node);
        var registrations = registrationsTable.get(node);
        for (var i = 0; i < registrations.length; i++) {
          if (registrations[i] === this) {
            registrations.splice(i, 1);
            break;
          }
        }
      }, this);
    },
    handleEvent: function(e) {
      e.stopImmediatePropagation();
      switch (e.type) {
       case "DOMAttrModified":
        var name = e.attrName;
        var namespace = e.relatedNode.namespaceURI;
        var target = e.target;
        var record = new getRecord("attributes", target);
        record.attributeName = name;
        record.attributeNamespace = namespace;
        var oldValue = e.attrChange === MutationEvent.ADDITION ? null : e.prevValue;
        forEachAncestorAndObserverEnqueueRecord(target, function(options) {
          if (!options.attributes) return;
          if (options.attributeFilter && options.attributeFilter.length && options.attributeFilter.indexOf(name) === -1 && options.attributeFilter.indexOf(namespace) === -1) {
            return;
          }
          if (options.attributeOldValue) return getRecordWithOldValue(oldValue);
          return record;
        });
        break;

       case "DOMCharacterDataModified":
        var target = e.target;
        var record = getRecord("characterData", target);
        var oldValue = e.prevValue;
        forEachAncestorAndObserverEnqueueRecord(target, function(options) {
          if (!options.characterData) return;
          if (options.characterDataOldValue) return getRecordWithOldValue(oldValue);
          return record;
        });
        break;

       case "DOMNodeRemoved":
        this.addTransientObserver(e.target);

       case "DOMNodeInserted":
        var changedNode = e.target;
        var addedNodes, removedNodes;
        if (e.type === "DOMNodeInserted") {
          addedNodes = [ changedNode ];
          removedNodes = [];
        } else {
          addedNodes = [];
          removedNodes = [ changedNode ];
        }
        var previousSibling = changedNode.previousSibling;
        var nextSibling = changedNode.nextSibling;
        var record = getRecord("childList", e.target.parentNode);
        record.addedNodes = addedNodes;
        record.removedNodes = removedNodes;
        record.previousSibling = previousSibling;
        record.nextSibling = nextSibling;
        forEachAncestorAndObserverEnqueueRecord(e.relatedNode, function(options) {
          if (!options.childList) return;
          return record;
        });
      }
      clearRecords();
    }
  };
  global.JsMutationObserver = JsMutationObserver;
  if (!global.MutationObserver) {
    global.MutationObserver = JsMutationObserver;
    JsMutationObserver._isPolyfilled = true;
  }
})(self);

if (typeof HTMLTemplateElement === "undefined") {
  (function() {
    var TEMPLATE_TAG = "template";
    var contentDoc = document.implementation.createHTMLDocument("template");
    var canDecorate = true;
    HTMLTemplateElement = function() {};
    HTMLTemplateElement.prototype = Object.create(HTMLElement.prototype);
    HTMLTemplateElement.decorate = function(template) {
      if (template.content) {
        return;
      }
      template.content = contentDoc.createDocumentFragment();
      var child;
      while (child = template.firstChild) {
        template.content.appendChild(child);
      }
      if (canDecorate) {
        try {
          Object.defineProperty(template, "innerHTML", {
            get: function() {
              var o = "";
              for (var e = this.content.firstChild; e; e = e.nextSibling) {
                o += e.outerHTML || escapeData(e.data);
              }
              return o;
            },
            set: function(text) {
              contentDoc.body.innerHTML = text;
              HTMLTemplateElement.bootstrap(contentDoc);
              while (this.content.firstChild) {
                this.content.removeChild(this.content.firstChild);
              }
              while (contentDoc.body.firstChild) {
                this.content.appendChild(contentDoc.body.firstChild);
              }
            },
            configurable: true
          });
        } catch (err) {
          canDecorate = false;
        }
      }
      HTMLTemplateElement.bootstrap(template.content);
    };
    HTMLTemplateElement.bootstrap = function(doc) {
      var templates = doc.querySelectorAll(TEMPLATE_TAG);
      for (var i = 0, l = templates.length, t; i < l && (t = templates[i]); i++) {
        HTMLTemplateElement.decorate(t);
      }
    };
    document.addEventListener("DOMContentLoaded", function() {
      HTMLTemplateElement.bootstrap(document);
    });
    var createElement = document.createElement;
    document.createElement = function() {
      "use strict";
      var el = createElement.apply(document, arguments);
      if (el.localName == "template") {
        HTMLTemplateElement.decorate(el);
      }
      return el;
    };
    var escapeDataRegExp = /[&\u00A0<>]/g;
    function escapeReplace(c) {
      switch (c) {
       case "&":
        return "&amp;";

       case "<":
        return "&lt;";

       case ">":
        return "&gt;";

       case " ":
        return "&nbsp;";
      }
    }
    function escapeData(s) {
      return s.replace(escapeDataRegExp, escapeReplace);
    }
  })();
}

(function(scope) {
  "use strict";
  if (!window.performance) {
    var start = Date.now();
    window.performance = {
      now: function() {
        return Date.now() - start;
      }
    };
  }
  if (!window.requestAnimationFrame) {
    window.requestAnimationFrame = function() {
      var nativeRaf = window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame;
      return nativeRaf ? function(callback) {
        return nativeRaf(function() {
          callback(performance.now());
        });
      } : function(callback) {
        return window.setTimeout(callback, 1e3 / 60);
      };
    }();
  }
  if (!window.cancelAnimationFrame) {
    window.cancelAnimationFrame = function() {
      return window.webkitCancelAnimationFrame || window.mozCancelAnimationFrame || function(id) {
        clearTimeout(id);
      };
    }();
  }
  var workingDefaultPrevented = function() {
    var e = document.createEvent("Event");
    e.initEvent("foo", true, true);
    e.preventDefault();
    return e.defaultPrevented;
  }();
  if (!workingDefaultPrevented) {
    var origPreventDefault = Event.prototype.preventDefault;
    Event.prototype.preventDefault = function() {
      if (!this.cancelable) {
        return;
      }
      origPreventDefault.call(this);
      Object.defineProperty(this, "defaultPrevented", {
        get: function() {
          return true;
        },
        configurable: true
      });
    };
  }
  var isIE = /Trident/.test(navigator.userAgent);
  if (!window.CustomEvent || isIE && typeof window.CustomEvent !== "function") {
    window.CustomEvent = function(inType, params) {
      params = params || {};
      var e = document.createEvent("CustomEvent");
      e.initCustomEvent(inType, Boolean(params.bubbles), Boolean(params.cancelable), params.detail);
      return e;
    };
    window.CustomEvent.prototype = window.Event.prototype;
  }
  if (!window.Event || isIE && typeof window.Event !== "function") {
    var origEvent = window.Event;
    window.Event = function(inType, params) {
      params = params || {};
      var e = document.createEvent("Event");
      e.initEvent(inType, Boolean(params.bubbles), Boolean(params.cancelable));
      return e;
    };
    window.Event.prototype = origEvent.prototype;
  }
})(window.WebComponents);

window.HTMLImports = window.HTMLImports || {
  flags: {}
};

(function(scope) {
  var IMPORT_LINK_TYPE = "import";
  var useNative = Boolean(IMPORT_LINK_TYPE in document.createElement("link"));
  var hasShadowDOMPolyfill = Boolean(window.ShadowDOMPolyfill);
  var wrap = function(node) {
    return hasShadowDOMPolyfill ? window.ShadowDOMPolyfill.wrapIfNeeded(node) : node;
  };
  var rootDocument = wrap(document);
  var currentScriptDescriptor = {
    get: function() {
      var script = window.HTMLImports.currentScript || document.currentScript || (document.readyState !== "complete" ? document.scripts[document.scripts.length - 1] : null);
      return wrap(script);
    },
    configurable: true
  };
  Object.defineProperty(document, "_currentScript", currentScriptDescriptor);
  Object.defineProperty(rootDocument, "_currentScript", currentScriptDescriptor);
  var isIE = /Trident/.test(navigator.userAgent);
  function whenReady(callback, doc) {
    doc = doc || rootDocument;
    whenDocumentReady(function() {
      watchImportsLoad(callback, doc);
    }, doc);
  }
  var requiredReadyState = isIE ? "complete" : "interactive";
  var READY_EVENT = "readystatechange";
  function isDocumentReady(doc) {
    return doc.readyState === "complete" || doc.readyState === requiredReadyState;
  }
  function whenDocumentReady(callback, doc) {
    if (!isDocumentReady(doc)) {
      var checkReady = function() {
        if (doc.readyState === "complete" || doc.readyState === requiredReadyState) {
          doc.removeEventListener(READY_EVENT, checkReady);
          whenDocumentReady(callback, doc);
        }
      };
      doc.addEventListener(READY_EVENT, checkReady);
    } else if (callback) {
      callback();
    }
  }
  function markTargetLoaded(event) {
    event.target.__loaded = true;
  }
  function watchImportsLoad(callback, doc) {
    var imports = doc.querySelectorAll("link[rel=import]");
    var parsedCount = 0, importCount = imports.length, newImports = [], errorImports = [];
    function checkDone() {
      if (parsedCount == importCount && callback) {
        callback({
          allImports: imports,
          loadedImports: newImports,
          errorImports: errorImports
        });
      }
    }
    function loadedImport(e) {
      markTargetLoaded(e);
      newImports.push(this);
      parsedCount++;
      checkDone();
    }
    function errorLoadingImport(e) {
      errorImports.push(this);
      parsedCount++;
      checkDone();
    }
    if (importCount) {
      for (var i = 0, imp; i < importCount && (imp = imports[i]); i++) {
        if (isImportLoaded(imp)) {
          newImports.push(this);
          parsedCount++;
          checkDone();
        } else {
          imp.addEventListener("load", loadedImport);
          imp.addEventListener("error", errorLoadingImport);
        }
      }
    } else {
      checkDone();
    }
  }
  function isImportLoaded(link) {
    return useNative ? link.__loaded || link.import && link.import.readyState !== "loading" : link.__importParsed;
  }
  if (useNative) {
    new MutationObserver(function(mxns) {
      for (var i = 0, l = mxns.length, m; i < l && (m = mxns[i]); i++) {
        if (m.addedNodes) {
          handleImports(m.addedNodes);
        }
      }
    }).observe(document.head, {
      childList: true
    });
    function handleImports(nodes) {
      for (var i = 0, l = nodes.length, n; i < l && (n = nodes[i]); i++) {
        if (isImport(n)) {
          handleImport(n);
        }
      }
    }
    function isImport(element) {
      return element.localName === "link" && element.rel === "import";
    }
    function handleImport(element) {
      var loaded = element.import;
      if (loaded) {
        markTargetLoaded({
          target: element
        });
      } else {
        element.addEventListener("load", markTargetLoaded);
        element.addEventListener("error", markTargetLoaded);
      }
    }
    (function() {
      if (document.readyState === "loading") {
        var imports = document.querySelectorAll("link[rel=import]");
        for (var i = 0, l = imports.length, imp; i < l && (imp = imports[i]); i++) {
          handleImport(imp);
        }
      }
    })();
  }
  whenReady(function(detail) {
    window.HTMLImports.ready = true;
    window.HTMLImports.readyTime = new Date().getTime();
    var evt = rootDocument.createEvent("CustomEvent");
    evt.initCustomEvent("HTMLImportsLoaded", true, true, detail);
    rootDocument.dispatchEvent(evt);
  });
  scope.IMPORT_LINK_TYPE = IMPORT_LINK_TYPE;
  scope.useNative = useNative;
  scope.rootDocument = rootDocument;
  scope.whenReady = whenReady;
  scope.isIE = isIE;
})(window.HTMLImports);

(function(scope) {
  var modules = [];
  var addModule = function(module) {
    modules.push(module);
  };
  var initializeModules = function() {
    modules.forEach(function(module) {
      module(scope);
    });
  };
  scope.addModule = addModule;
  scope.initializeModules = initializeModules;
})(window.HTMLImports);

window.HTMLImports.addModule(function(scope) {
  var CSS_URL_REGEXP = /(url\()([^)]*)(\))/g;
  var CSS_IMPORT_REGEXP = /(@import[\s]+(?!url\())([^;]*)(;)/g;
  var path = {
    resolveUrlsInStyle: function(style, linkUrl) {
      var doc = style.ownerDocument;
      var resolver = doc.createElement("a");
      style.textContent = this.resolveUrlsInCssText(style.textContent, linkUrl, resolver);
      return style;
    },
    resolveUrlsInCssText: function(cssText, linkUrl, urlObj) {
      var r = this.replaceUrls(cssText, urlObj, linkUrl, CSS_URL_REGEXP);
      r = this.replaceUrls(r, urlObj, linkUrl, CSS_IMPORT_REGEXP);
      return r;
    },
    replaceUrls: function(text, urlObj, linkUrl, regexp) {
      return text.replace(regexp, function(m, pre, url, post) {
        var urlPath = url.replace(/["']/g, "");
        if (linkUrl) {
          urlPath = new URL(urlPath, linkUrl).href;
        }
        urlObj.href = urlPath;
        urlPath = urlObj.href;
        return pre + "'" + urlPath + "'" + post;
      });
    }
  };
  scope.path = path;
});

window.HTMLImports.addModule(function(scope) {
  var xhr = {
    async: true,
    ok: function(request) {
      return request.status >= 200 && request.status < 300 || request.status === 304 || request.status === 0;
    },
    load: function(url, next, nextContext) {
      var request = new XMLHttpRequest();
      if (scope.flags.debug || scope.flags.bust) {
        url += "?" + Math.random();
      }
      request.open("GET", url, xhr.async);
      request.addEventListener("readystatechange", function(e) {
        if (request.readyState === 4) {
          var redirectedUrl = null;
          try {
            var locationHeader = request.getResponseHeader("Location");
            if (locationHeader) {
              redirectedUrl = locationHeader.substr(0, 1) === "/" ? location.origin + locationHeader : locationHeader;
            }
          } catch (e) {
            console.error(e.message);
          }
          next.call(nextContext, !xhr.ok(request) && request, request.response || request.responseText, redirectedUrl);
        }
      });
      request.send();
      return request;
    },
    loadDocument: function(url, next, nextContext) {
      this.load(url, next, nextContext).responseType = "document";
    }
  };
  scope.xhr = xhr;
});

window.HTMLImports.addModule(function(scope) {
  var xhr = scope.xhr;
  var flags = scope.flags;
  var Loader = function(onLoad, onComplete) {
    this.cache = {};
    this.onload = onLoad;
    this.oncomplete = onComplete;
    this.inflight = 0;
    this.pending = {};
  };
  Loader.prototype = {
    addNodes: function(nodes) {
      this.inflight += nodes.length;
      for (var i = 0, l = nodes.length, n; i < l && (n = nodes[i]); i++) {
        this.require(n);
      }
      this.checkDone();
    },
    addNode: function(node) {
      this.inflight++;
      this.require(node);
      this.checkDone();
    },
    require: function(elt) {
      var url = elt.src || elt.href;
      elt.__nodeUrl = url;
      if (!this.dedupe(url, elt)) {
        this.fetch(url, elt);
      }
    },
    dedupe: function(url, elt) {
      if (this.pending[url]) {
        this.pending[url].push(elt);
        return true;
      }
      var resource;
      if (this.cache[url]) {
        this.onload(url, elt, this.cache[url]);
        this.tail();
        return true;
      }
      this.pending[url] = [ elt ];
      return false;
    },
    fetch: function(url, elt) {
      flags.load && console.log("fetch", url, elt);
      if (!url) {
        setTimeout(function() {
          this.receive(url, elt, {
            error: "href must be specified"
          }, null);
        }.bind(this), 0);
      } else if (url.match(/^data:/)) {
        var pieces = url.split(",");
        var header = pieces[0];
        var body = pieces[1];
        if (header.indexOf(";base64") > -1) {
          body = atob(body);
        } else {
          body = decodeURIComponent(body);
        }
        setTimeout(function() {
          this.receive(url, elt, null, body);
        }.bind(this), 0);
      } else {
        var receiveXhr = function(err, resource, redirectedUrl) {
          this.receive(url, elt, err, resource, redirectedUrl);
        }.bind(this);
        xhr.load(url, receiveXhr);
      }
    },
    receive: function(url, elt, err, resource, redirectedUrl) {
      this.cache[url] = resource;
      var $p = this.pending[url];
      for (var i = 0, l = $p.length, p; i < l && (p = $p[i]); i++) {
        this.onload(url, p, resource, err, redirectedUrl);
        this.tail();
      }
      this.pending[url] = null;
    },
    tail: function() {
      --this.inflight;
      this.checkDone();
    },
    checkDone: function() {
      if (!this.inflight) {
        this.oncomplete();
      }
    }
  };
  scope.Loader = Loader;
});

window.HTMLImports.addModule(function(scope) {
  var Observer = function(addCallback) {
    this.addCallback = addCallback;
    this.mo = new MutationObserver(this.handler.bind(this));
  };
  Observer.prototype = {
    handler: function(mutations) {
      for (var i = 0, l = mutations.length, m; i < l && (m = mutations[i]); i++) {
        if (m.type === "childList" && m.addedNodes.length) {
          this.addedNodes(m.addedNodes);
        }
      }
    },
    addedNodes: function(nodes) {
      if (this.addCallback) {
        this.addCallback(nodes);
      }
      for (var i = 0, l = nodes.length, n, loading; i < l && (n = nodes[i]); i++) {
        if (n.children && n.children.length) {
          this.addedNodes(n.children);
        }
      }
    },
    observe: function(root) {
      this.mo.observe(root, {
        childList: true,
        subtree: true
      });
    }
  };
  scope.Observer = Observer;
});

window.HTMLImports.addModule(function(scope) {
  var path = scope.path;
  var rootDocument = scope.rootDocument;
  var flags = scope.flags;
  var isIE = scope.isIE;
  var IMPORT_LINK_TYPE = scope.IMPORT_LINK_TYPE;
  var IMPORT_SELECTOR = "link[rel=" + IMPORT_LINK_TYPE + "]";
  var importParser = {
    documentSelectors: IMPORT_SELECTOR,
    importsSelectors: [ IMPORT_SELECTOR, "link[rel=stylesheet]:not([type])", "style:not([type])", "script:not([type])", 'script[type="application/javascript"]', 'script[type="text/javascript"]' ].join(","),
    map: {
      link: "parseLink",
      script: "parseScript",
      style: "parseStyle"
    },
    dynamicElements: [],
    parseNext: function() {
      var next = this.nextToParse();
      if (next) {
        this.parse(next);
      }
    },
    parse: function(elt) {
      if (this.isParsed(elt)) {
        flags.parse && console.log("[%s] is already parsed", elt.localName);
        return;
      }
      var fn = this[this.map[elt.localName]];
      if (fn) {
        this.markParsing(elt);
        fn.call(this, elt);
      }
    },
    parseDynamic: function(elt, quiet) {
      this.dynamicElements.push(elt);
      if (!quiet) {
        this.parseNext();
      }
    },
    markParsing: function(elt) {
      flags.parse && console.log("parsing", elt);
      this.parsingElement = elt;
    },
    markParsingComplete: function(elt) {
      elt.__importParsed = true;
      this.markDynamicParsingComplete(elt);
      if (elt.__importElement) {
        elt.__importElement.__importParsed = true;
        this.markDynamicParsingComplete(elt.__importElement);
      }
      this.parsingElement = null;
      flags.parse && console.log("completed", elt);
    },
    markDynamicParsingComplete: function(elt) {
      var i = this.dynamicElements.indexOf(elt);
      if (i >= 0) {
        this.dynamicElements.splice(i, 1);
      }
    },
    parseImport: function(elt) {
      elt.import = elt.__doc;
      if (window.HTMLImports.__importsParsingHook) {
        window.HTMLImports.__importsParsingHook(elt);
      }
      if (elt.import) {
        elt.import.__importParsed = true;
      }
      this.markParsingComplete(elt);
      if (elt.__resource && !elt.__error) {
        elt.dispatchEvent(new CustomEvent("load", {
          bubbles: false
        }));
      } else {
        elt.dispatchEvent(new CustomEvent("error", {
          bubbles: false
        }));
      }
      if (elt.__pending) {
        var fn;
        while (elt.__pending.length) {
          fn = elt.__pending.shift();
          if (fn) {
            fn({
              target: elt
            });
          }
        }
      }
      this.parseNext();
    },
    parseLink: function(linkElt) {
      if (nodeIsImport(linkElt)) {
        this.parseImport(linkElt);
      } else {
        linkElt.href = linkElt.href;
        this.parseGeneric(linkElt);
      }
    },
    parseStyle: function(elt) {
      var src = elt;
      elt = cloneStyle(elt);
      src.__appliedElement = elt;
      elt.__importElement = src;
      this.parseGeneric(elt);
    },
    parseGeneric: function(elt) {
      this.trackElement(elt);
      this.addElementToDocument(elt);
    },
    rootImportForElement: function(elt) {
      var n = elt;
      while (n.ownerDocument.__importLink) {
        n = n.ownerDocument.__importLink;
      }
      return n;
    },
    addElementToDocument: function(elt) {
      var port = this.rootImportForElement(elt.__importElement || elt);
      port.parentNode.insertBefore(elt, port);
    },
    trackElement: function(elt, callback) {
      var self = this;
      var done = function(e) {
        elt.removeEventListener("load", done);
        elt.removeEventListener("error", done);
        if (callback) {
          callback(e);
        }
        self.markParsingComplete(elt);
        self.parseNext();
      };
      elt.addEventListener("load", done);
      elt.addEventListener("error", done);
      if (isIE && elt.localName === "style") {
        var fakeLoad = false;
        if (elt.textContent.indexOf("@import") == -1) {
          fakeLoad = true;
        } else if (elt.sheet) {
          fakeLoad = true;
          var csr = elt.sheet.cssRules;
          var len = csr ? csr.length : 0;
          for (var i = 0, r; i < len && (r = csr[i]); i++) {
            if (r.type === CSSRule.IMPORT_RULE) {
              fakeLoad = fakeLoad && Boolean(r.styleSheet);
            }
          }
        }
        if (fakeLoad) {
          setTimeout(function() {
            elt.dispatchEvent(new CustomEvent("load", {
              bubbles: false
            }));
          });
        }
      }
    },
    parseScript: function(scriptElt) {
      var script = document.createElement("script");
      script.__importElement = scriptElt;
      script.src = scriptElt.src ? scriptElt.src : generateScriptDataUrl(scriptElt);
      scope.currentScript = scriptElt;
      this.trackElement(script, function(e) {
        if (script.parentNode) {
          script.parentNode.removeChild(script);
        }
        scope.currentScript = null;
      });
      this.addElementToDocument(script);
    },
    nextToParse: function() {
      this._mayParse = [];
      return !this.parsingElement && (this.nextToParseInDoc(rootDocument) || this.nextToParseDynamic());
    },
    nextToParseInDoc: function(doc, link) {
      if (doc && this._mayParse.indexOf(doc) < 0) {
        this._mayParse.push(doc);
        var nodes = doc.querySelectorAll(this.parseSelectorsForNode(doc));
        for (var i = 0, l = nodes.length, p = 0, n; i < l && (n = nodes[i]); i++) {
          if (!this.isParsed(n)) {
            if (this.hasResource(n)) {
              return nodeIsImport(n) ? this.nextToParseInDoc(n.__doc, n) : n;
            } else {
              return;
            }
          }
        }
      }
      return link;
    },
    nextToParseDynamic: function() {
      return this.dynamicElements[0];
    },
    parseSelectorsForNode: function(node) {
      var doc = node.ownerDocument || node;
      return doc === rootDocument ? this.documentSelectors : this.importsSelectors;
    },
    isParsed: function(node) {
      return node.__importParsed;
    },
    needsDynamicParsing: function(elt) {
      return this.dynamicElements.indexOf(elt) >= 0;
    },
    hasResource: function(node) {
      if (nodeIsImport(node) && node.__doc === undefined) {
        return false;
      }
      return true;
    }
  };
  function nodeIsImport(elt) {
    return elt.localName === "link" && elt.rel === IMPORT_LINK_TYPE;
  }
  function generateScriptDataUrl(script) {
    var scriptContent = generateScriptContent(script);
    return "data:text/javascript;charset=utf-8," + encodeURIComponent(scriptContent);
  }
  function generateScriptContent(script) {
    return script.textContent + generateSourceMapHint(script);
  }
  function generateSourceMapHint(script) {
    var owner = script.ownerDocument;
    owner.__importedScripts = owner.__importedScripts || 0;
    var moniker = script.ownerDocument.baseURI;
    var num = owner.__importedScripts ? "-" + owner.__importedScripts : "";
    owner.__importedScripts++;
    return "\n//# sourceURL=" + moniker + num + ".js\n";
  }
  function cloneStyle(style) {
    var clone = style.ownerDocument.createElement("style");
    clone.textContent = style.textContent;
    path.resolveUrlsInStyle(clone);
    return clone;
  }
  scope.parser = importParser;
  scope.IMPORT_SELECTOR = IMPORT_SELECTOR;
});

window.HTMLImports.addModule(function(scope) {
  var flags = scope.flags;
  var IMPORT_LINK_TYPE = scope.IMPORT_LINK_TYPE;
  var IMPORT_SELECTOR = scope.IMPORT_SELECTOR;
  var rootDocument = scope.rootDocument;
  var Loader = scope.Loader;
  var Observer = scope.Observer;
  var parser = scope.parser;
  var importer = {
    documents: {},
    documentPreloadSelectors: IMPORT_SELECTOR,
    importsPreloadSelectors: [ IMPORT_SELECTOR ].join(","),
    loadNode: function(node) {
      importLoader.addNode(node);
    },
    loadSubtree: function(parent) {
      var nodes = this.marshalNodes(parent);
      importLoader.addNodes(nodes);
    },
    marshalNodes: function(parent) {
      return parent.querySelectorAll(this.loadSelectorsForNode(parent));
    },
    loadSelectorsForNode: function(node) {
      var doc = node.ownerDocument || node;
      return doc === rootDocument ? this.documentPreloadSelectors : this.importsPreloadSelectors;
    },
    loaded: function(url, elt, resource, err, redirectedUrl) {
      flags.load && console.log("loaded", url, elt);
      elt.__resource = resource;
      elt.__error = err;
      if (isImportLink(elt)) {
        var doc = this.documents[url];
        if (doc === undefined) {
          doc = err ? null : makeDocument(resource, redirectedUrl || url);
          if (doc) {
            doc.__importLink = elt;
            this.bootDocument(doc);
          }
          this.documents[url] = doc;
        }
        elt.__doc = doc;
      }
      parser.parseNext();
    },
    bootDocument: function(doc) {
      this.loadSubtree(doc);
      this.observer.observe(doc);
      parser.parseNext();
    },
    loadedAll: function() {
      parser.parseNext();
    }
  };
  var importLoader = new Loader(importer.loaded.bind(importer), importer.loadedAll.bind(importer));
  importer.observer = new Observer();
  function isImportLink(elt) {
    return isLinkRel(elt, IMPORT_LINK_TYPE);
  }
  function isLinkRel(elt, rel) {
    return elt.localName === "link" && elt.getAttribute("rel") === rel;
  }
  function hasBaseURIAccessor(doc) {
    return !!Object.getOwnPropertyDescriptor(doc, "baseURI");
  }
  function makeDocument(resource, url) {
    var doc = document.implementation.createHTMLDocument(IMPORT_LINK_TYPE);
    doc._URL = url;
    var base = doc.createElement("base");
    base.setAttribute("href", url);
    if (!doc.baseURI && !hasBaseURIAccessor(doc)) {
      Object.defineProperty(doc, "baseURI", {
        value: url
      });
    }
    var meta = doc.createElement("meta");
    meta.setAttribute("charset", "utf-8");
    doc.head.appendChild(meta);
    doc.head.appendChild(base);
    doc.body.innerHTML = resource;
    if (window.HTMLTemplateElement && HTMLTemplateElement.bootstrap) {
      HTMLTemplateElement.bootstrap(doc);
    }
    return doc;
  }
  if (!document.baseURI) {
    var baseURIDescriptor = {
      get: function() {
        var base = document.querySelector("base");
        return base ? base.href : window.location.href;
      },
      configurable: true
    };
    Object.defineProperty(document, "baseURI", baseURIDescriptor);
    Object.defineProperty(rootDocument, "baseURI", baseURIDescriptor);
  }
  scope.importer = importer;
  scope.importLoader = importLoader;
});

window.HTMLImports.addModule(function(scope) {
  var parser = scope.parser;
  var importer = scope.importer;
  var dynamic = {
    added: function(nodes) {
      var owner, parsed, loading;
      for (var i = 0, l = nodes.length, n; i < l && (n = nodes[i]); i++) {
        if (!owner) {
          owner = n.ownerDocument;
          parsed = parser.isParsed(owner);
        }
        loading = this.shouldLoadNode(n);
        if (loading) {
          importer.loadNode(n);
        }
        if (this.shouldParseNode(n) && parsed) {
          parser.parseDynamic(n, loading);
        }
      }
    },
    shouldLoadNode: function(node) {
      return node.nodeType === 1 && matches.call(node, importer.loadSelectorsForNode(node));
    },
    shouldParseNode: function(node) {
      return node.nodeType === 1 && matches.call(node, parser.parseSelectorsForNode(node));
    }
  };
  importer.observer.addCallback = dynamic.added.bind(dynamic);
  var matches = HTMLElement.prototype.matches || HTMLElement.prototype.matchesSelector || HTMLElement.prototype.webkitMatchesSelector || HTMLElement.prototype.mozMatchesSelector || HTMLElement.prototype.msMatchesSelector;
});

(function(scope) {
  var initializeModules = scope.initializeModules;
  var isIE = scope.isIE;
  if (scope.useNative) {
    return;
  }
  initializeModules();
  var rootDocument = scope.rootDocument;
  function bootstrap() {
    window.HTMLImports.importer.bootDocument(rootDocument);
  }
  if (document.readyState === "complete" || document.readyState === "interactive" && !window.attachEvent) {
    bootstrap();
  } else {
    document.addEventListener("DOMContentLoaded", bootstrap);
  }
})(window.HTMLImports);

window.CustomElements = window.CustomElements || {
  flags: {}
};

(function(scope) {
  var flags = scope.flags;
  var modules = [];
  var addModule = function(module) {
    modules.push(module);
  };
  var initializeModules = function() {
    modules.forEach(function(module) {
      module(scope);
    });
  };
  scope.addModule = addModule;
  scope.initializeModules = initializeModules;
  scope.hasNative = Boolean(document.registerElement);
  scope.isIE = /Trident/.test(navigator.userAgent);
  scope.useNative = !flags.register && scope.hasNative && !window.ShadowDOMPolyfill && (!window.HTMLImports || window.HTMLImports.useNative);
})(window.CustomElements);

window.CustomElements.addModule(function(scope) {
  var IMPORT_LINK_TYPE = window.HTMLImports ? window.HTMLImports.IMPORT_LINK_TYPE : "none";
  function forSubtree(node, cb) {
    findAllElements(node, function(e) {
      if (cb(e)) {
        return true;
      }
      forRoots(e, cb);
    });
    forRoots(node, cb);
  }
  function findAllElements(node, find, data) {
    var e = node.firstElementChild;
    if (!e) {
      e = node.firstChild;
      while (e && e.nodeType !== Node.ELEMENT_NODE) {
        e = e.nextSibling;
      }
    }
    while (e) {
      if (find(e, data) !== true) {
        findAllElements(e, find, data);
      }
      e = e.nextElementSibling;
    }
    return null;
  }
  function forRoots(node, cb) {
    var root = node.shadowRoot;
    while (root) {
      forSubtree(root, cb);
      root = root.olderShadowRoot;
    }
  }
  function forDocumentTree(doc, cb) {
    _forDocumentTree(doc, cb, []);
  }
  function _forDocumentTree(doc, cb, processingDocuments) {
    doc = window.wrap(doc);
    if (processingDocuments.indexOf(doc) >= 0) {
      return;
    }
    processingDocuments.push(doc);
    var imports = doc.querySelectorAll("link[rel=" + IMPORT_LINK_TYPE + "]");
    for (var i = 0, l = imports.length, n; i < l && (n = imports[i]); i++) {
      if (n.import) {
        _forDocumentTree(n.import, cb, processingDocuments);
      }
    }
    cb(doc);
  }
  scope.forDocumentTree = forDocumentTree;
  scope.forSubtree = forSubtree;
});

window.CustomElements.addModule(function(scope) {
  var flags = scope.flags;
  var forSubtree = scope.forSubtree;
  var forDocumentTree = scope.forDocumentTree;
  function addedNode(node, isAttached) {
    return added(node, isAttached) || addedSubtree(node, isAttached);
  }
  function added(node, isAttached) {
    if (scope.upgrade(node, isAttached)) {
      return true;
    }
    if (isAttached) {
      attached(node);
    }
  }
  function addedSubtree(node, isAttached) {
    forSubtree(node, function(e) {
      if (added(e, isAttached)) {
        return true;
      }
    });
  }
  var hasThrottledAttached = window.MutationObserver._isPolyfilled && flags["throttle-attached"];
  scope.hasPolyfillMutations = hasThrottledAttached;
  scope.hasThrottledAttached = hasThrottledAttached;
  var isPendingMutations = false;
  var pendingMutations = [];
  function deferMutation(fn) {
    pendingMutations.push(fn);
    if (!isPendingMutations) {
      isPendingMutations = true;
      setTimeout(takeMutations);
    }
  }
  function takeMutations() {
    isPendingMutations = false;
    var $p = pendingMutations;
    for (var i = 0, l = $p.length, p; i < l && (p = $p[i]); i++) {
      p();
    }
    pendingMutations = [];
  }
  function attached(element) {
    if (hasThrottledAttached) {
      deferMutation(function() {
        _attached(element);
      });
    } else {
      _attached(element);
    }
  }
  function _attached(element) {
    if (element.__upgraded__ && !element.__attached) {
      element.__attached = true;
      if (element.attachedCallback) {
        element.attachedCallback();
      }
    }
  }
  function detachedNode(node) {
    detached(node);
    forSubtree(node, function(e) {
      detached(e);
    });
  }
  function detached(element) {
    if (hasThrottledAttached) {
      deferMutation(function() {
        _detached(element);
      });
    } else {
      _detached(element);
    }
  }
  function _detached(element) {
    if (element.__upgraded__ && element.__attached) {
      element.__attached = false;
      if (element.detachedCallback) {
        element.detachedCallback();
      }
    }
  }
  function inDocument(element) {
    var p = element;
    var doc = window.wrap(document);
    while (p) {
      if (p == doc) {
        return true;
      }
      p = p.parentNode || p.nodeType === Node.DOCUMENT_FRAGMENT_NODE && p.host;
    }
  }
  function watchShadow(node) {
    if (node.shadowRoot && !node.shadowRoot.__watched) {
      flags.dom && console.log("watching shadow-root for: ", node.localName);
      var root = node.shadowRoot;
      while (root) {
        observe(root);
        root = root.olderShadowRoot;
      }
    }
  }
  function handler(root, mutations) {
    if (flags.dom) {
      var mx = mutations[0];
      if (mx && mx.type === "childList" && mx.addedNodes) {
        if (mx.addedNodes) {
          var d = mx.addedNodes[0];
          while (d && d !== document && !d.host) {
            d = d.parentNode;
          }
          var u = d && (d.URL || d._URL || d.host && d.host.localName) || "";
          u = u.split("/?").shift().split("/").pop();
        }
      }
      console.group("mutations (%d) [%s]", mutations.length, u || "");
    }
    var isAttached = inDocument(root);
    mutations.forEach(function(mx) {
      if (mx.type === "childList") {
        forEach(mx.addedNodes, function(n) {
          if (!n.localName) {
            return;
          }
          addedNode(n, isAttached);
        });
        forEach(mx.removedNodes, function(n) {
          if (!n.localName) {
            return;
          }
          detachedNode(n);
        });
      }
    });
    flags.dom && console.groupEnd();
  }
  function takeRecords(node) {
    node = window.wrap(node);
    if (!node) {
      node = window.wrap(document);
    }
    while (node.parentNode) {
      node = node.parentNode;
    }
    var observer = node.__observer;
    if (observer) {
      handler(node, observer.takeRecords());
      takeMutations();
    }
  }
  var forEach = Array.prototype.forEach.call.bind(Array.prototype.forEach);
  function observe(inRoot) {
    if (inRoot.__observer) {
      return;
    }
    var observer = new MutationObserver(handler.bind(this, inRoot));
    observer.observe(inRoot, {
      childList: true,
      subtree: true
    });
    inRoot.__observer = observer;
  }
  function upgradeDocument(doc) {
    doc = window.wrap(doc);
    flags.dom && console.group("upgradeDocument: ", doc.baseURI.split("/").pop());
    var isMainDocument = doc === window.wrap(document);
    addedNode(doc, isMainDocument);
    observe(doc);
    flags.dom && console.groupEnd();
  }
  function upgradeDocumentTree(doc) {
    forDocumentTree(doc, upgradeDocument);
  }
  var originalCreateShadowRoot = Element.prototype.createShadowRoot;
  if (originalCreateShadowRoot) {
    Element.prototype.createShadowRoot = function() {
      var root = originalCreateShadowRoot.call(this);
      window.CustomElements.watchShadow(this);
      return root;
    };
  }
  scope.watchShadow = watchShadow;
  scope.upgradeDocumentTree = upgradeDocumentTree;
  scope.upgradeDocument = upgradeDocument;
  scope.upgradeSubtree = addedSubtree;
  scope.upgradeAll = addedNode;
  scope.attached = attached;
  scope.takeRecords = takeRecords;
});

window.CustomElements.addModule(function(scope) {
  var flags = scope.flags;
  function upgrade(node, isAttached) {
    if (node.localName === "template") {
      if (window.HTMLTemplateElement && HTMLTemplateElement.decorate) {
        HTMLTemplateElement.decorate(node);
      }
    }
    if (!node.__upgraded__ && node.nodeType === Node.ELEMENT_NODE) {
      var is = node.getAttribute("is");
      var definition = scope.getRegisteredDefinition(node.localName) || scope.getRegisteredDefinition(is);
      if (definition) {
        if (is && definition.tag == node.localName || !is && !definition.extends) {
          return upgradeWithDefinition(node, definition, isAttached);
        }
      }
    }
  }
  function upgradeWithDefinition(element, definition, isAttached) {
    flags.upgrade && console.group("upgrade:", element.localName);
    if (definition.is) {
      element.setAttribute("is", definition.is);
    }
    implementPrototype(element, definition);
    element.__upgraded__ = true;
    created(element);
    if (isAttached) {
      scope.attached(element);
    }
    scope.upgradeSubtree(element, isAttached);
    flags.upgrade && console.groupEnd();
    return element;
  }
  function implementPrototype(element, definition) {
    if (Object.__proto__) {
      element.__proto__ = definition.prototype;
    } else {
      customMixin(element, definition.prototype, definition.native);
      element.__proto__ = definition.prototype;
    }
  }
  function customMixin(inTarget, inSrc, inNative) {
    var used = {};
    var p = inSrc;
    while (p !== inNative && p !== HTMLElement.prototype) {
      var keys = Object.getOwnPropertyNames(p);
      for (var i = 0, k; k = keys[i]; i++) {
        if (!used[k]) {
          Object.defineProperty(inTarget, k, Object.getOwnPropertyDescriptor(p, k));
          used[k] = 1;
        }
      }
      p = Object.getPrototypeOf(p);
    }
  }
  function created(element) {
    if (element.createdCallback) {
      element.createdCallback();
    }
  }
  scope.upgrade = upgrade;
  scope.upgradeWithDefinition = upgradeWithDefinition;
  scope.implementPrototype = implementPrototype;
});

window.CustomElements.addModule(function(scope) {
  var isIE = scope.isIE;
  var upgradeDocumentTree = scope.upgradeDocumentTree;
  var upgradeAll = scope.upgradeAll;
  var upgradeWithDefinition = scope.upgradeWithDefinition;
  var implementPrototype = scope.implementPrototype;
  var useNative = scope.useNative;
  function register(name, options) {
    var definition = options || {};
    if (!name) {
      throw new Error("document.registerElement: first argument `name` must not be empty");
    }
    if (name.indexOf("-") < 0) {
      throw new Error("document.registerElement: first argument ('name') must contain a dash ('-'). Argument provided was '" + String(name) + "'.");
    }
    if (isReservedTag(name)) {
      throw new Error("Failed to execute 'registerElement' on 'Document': Registration failed for type '" + String(name) + "'. The type name is invalid.");
    }
    if (getRegisteredDefinition(name)) {
      throw new Error("DuplicateDefinitionError: a type with name '" + String(name) + "' is already registered");
    }
    if (!definition.prototype) {
      definition.prototype = Object.create(HTMLElement.prototype);
    }
    definition.__name = name.toLowerCase();
    definition.lifecycle = definition.lifecycle || {};
    definition.ancestry = ancestry(definition.extends);
    resolveTagName(definition);
    resolvePrototypeChain(definition);
    overrideAttributeApi(definition.prototype);
    registerDefinition(definition.__name, definition);
    definition.ctor = generateConstructor(definition);
    definition.ctor.prototype = definition.prototype;
    definition.prototype.constructor = definition.ctor;
    if (scope.ready) {
      upgradeDocumentTree(document);
    }
    return definition.ctor;
  }
  function overrideAttributeApi(prototype) {
    if (prototype.setAttribute._polyfilled) {
      return;
    }
    var setAttribute = prototype.setAttribute;
    prototype.setAttribute = function(name, value) {
      changeAttribute.call(this, name, value, setAttribute);
    };
    var removeAttribute = prototype.removeAttribute;
    prototype.removeAttribute = function(name) {
      changeAttribute.call(this, name, null, removeAttribute);
    };
    prototype.setAttribute._polyfilled = true;
  }
  function changeAttribute(name, value, operation) {
    name = name.toLowerCase();
    var oldValue = this.getAttribute(name);
    operation.apply(this, arguments);
    var newValue = this.getAttribute(name);
    if (this.attributeChangedCallback && newValue !== oldValue) {
      this.attributeChangedCallback(name, oldValue, newValue);
    }
  }
  function isReservedTag(name) {
    for (var i = 0; i < reservedTagList.length; i++) {
      if (name === reservedTagList[i]) {
        return true;
      }
    }
  }
  var reservedTagList = [ "annotation-xml", "color-profile", "font-face", "font-face-src", "font-face-uri", "font-face-format", "font-face-name", "missing-glyph" ];
  function ancestry(extnds) {
    var extendee = getRegisteredDefinition(extnds);
    if (extendee) {
      return ancestry(extendee.extends).concat([ extendee ]);
    }
    return [];
  }
  function resolveTagName(definition) {
    var baseTag = definition.extends;
    for (var i = 0, a; a = definition.ancestry[i]; i++) {
      baseTag = a.is && a.tag;
    }
    definition.tag = baseTag || definition.__name;
    if (baseTag) {
      definition.is = definition.__name;
    }
  }
  function resolvePrototypeChain(definition) {
    if (!Object.__proto__) {
      var nativePrototype = HTMLElement.prototype;
      if (definition.is) {
        var inst = document.createElement(definition.tag);
        nativePrototype = Object.getPrototypeOf(inst);
      }
      var proto = definition.prototype, ancestor;
      var foundPrototype = false;
      while (proto) {
        if (proto == nativePrototype) {
          foundPrototype = true;
        }
        ancestor = Object.getPrototypeOf(proto);
        if (ancestor) {
          proto.__proto__ = ancestor;
        }
        proto = ancestor;
      }
      if (!foundPrototype) {
        console.warn(definition.tag + " prototype not found in prototype chain for " + definition.is);
      }
      definition.native = nativePrototype;
    }
  }
  function instantiate(definition) {
    return upgradeWithDefinition(domCreateElement(definition.tag), definition);
  }
  var registry = {};
  function getRegisteredDefinition(name) {
    if (name) {
      return registry[name.toLowerCase()];
    }
  }
  function registerDefinition(name, definition) {
    registry[name] = definition;
  }
  function generateConstructor(definition) {
    return function() {
      return instantiate(definition);
    };
  }
  var HTML_NAMESPACE = "http://www.w3.org/1999/xhtml";
  function createElementNS(namespace, tag, typeExtension) {
    if (namespace === HTML_NAMESPACE) {
      return createElement(tag, typeExtension);
    } else {
      return domCreateElementNS(namespace, tag);
    }
  }
  function createElement(tag, typeExtension) {
    if (tag) {
      tag = tag.toLowerCase();
    }
    if (typeExtension) {
      typeExtension = typeExtension.toLowerCase();
    }
    var definition = getRegisteredDefinition(typeExtension || tag);
    if (definition) {
      if (tag == definition.tag && typeExtension == definition.is) {
        return new definition.ctor();
      }
      if (!typeExtension && !definition.is) {
        return new definition.ctor();
      }
    }
    var element;
    if (typeExtension) {
      element = createElement(tag);
      element.setAttribute("is", typeExtension);
      return element;
    }
    element = domCreateElement(tag);
    if (tag.indexOf("-") >= 0) {
      implementPrototype(element, HTMLElement);
    }
    return element;
  }
  var domCreateElement = document.createElement.bind(document);
  var domCreateElementNS = document.createElementNS.bind(document);
  var isInstance;
  if (!Object.__proto__ && !useNative) {
    isInstance = function(obj, ctor) {
      if (obj instanceof ctor) {
        return true;
      }
      var p = obj;
      while (p) {
        if (p === ctor.prototype) {
          return true;
        }
        p = p.__proto__;
      }
      return false;
    };
  } else {
    isInstance = function(obj, base) {
      return obj instanceof base;
    };
  }
  function wrapDomMethodToForceUpgrade(obj, methodName) {
    var orig = obj[methodName];
    obj[methodName] = function() {
      var n = orig.apply(this, arguments);
      upgradeAll(n);
      return n;
    };
  }
  wrapDomMethodToForceUpgrade(Node.prototype, "cloneNode");
  wrapDomMethodToForceUpgrade(document, "importNode");
  if (isIE) {
    (function() {
      var importNode = document.importNode;
      document.importNode = function() {
        var n = importNode.apply(document, arguments);
        if (n.nodeType == n.DOCUMENT_FRAGMENT_NODE) {
          var f = document.createDocumentFragment();
          f.appendChild(n);
          return f;
        } else {
          return n;
        }
      };
    })();
  }
  document.registerElement = register;
  document.createElement = createElement;
  document.createElementNS = createElementNS;
  scope.registry = registry;
  scope.instanceof = isInstance;
  scope.reservedTagList = reservedTagList;
  scope.getRegisteredDefinition = getRegisteredDefinition;
  document.register = document.registerElement;
});

(function(scope) {
  var useNative = scope.useNative;
  var initializeModules = scope.initializeModules;
  var isIE = scope.isIE;
  if (useNative) {
    var nop = function() {};
    scope.watchShadow = nop;
    scope.upgrade = nop;
    scope.upgradeAll = nop;
    scope.upgradeDocumentTree = nop;
    scope.upgradeSubtree = nop;
    scope.takeRecords = nop;
    scope.instanceof = function(obj, base) {
      return obj instanceof base;
    };
  } else {
    initializeModules();
  }
  var upgradeDocumentTree = scope.upgradeDocumentTree;
  var upgradeDocument = scope.upgradeDocument;
  if (!window.wrap) {
    if (window.ShadowDOMPolyfill) {
      window.wrap = window.ShadowDOMPolyfill.wrapIfNeeded;
      window.unwrap = window.ShadowDOMPolyfill.unwrapIfNeeded;
    } else {
      window.wrap = window.unwrap = function(node) {
        return node;
      };
    }
  }
  if (window.HTMLImports) {
    window.HTMLImports.__importsParsingHook = function(elt) {
      if (elt.import) {
        upgradeDocument(wrap(elt.import));
      }
    };
  }
  function bootstrap() {
    upgradeDocumentTree(window.wrap(document));
    window.CustomElements.ready = true;
    var requestAnimationFrame = window.requestAnimationFrame || function(f) {
      setTimeout(f, 16);
    };
    requestAnimationFrame(function() {
      setTimeout(function() {
        window.CustomElements.readyTime = Date.now();
        if (window.HTMLImports) {
          window.CustomElements.elapsed = window.CustomElements.readyTime - window.HTMLImports.readyTime;
        }
        document.dispatchEvent(new CustomEvent("WebComponentsReady", {
          bubbles: true
        }));
      });
    });
  }
  if (document.readyState === "complete" || scope.flags.eager) {
    bootstrap();
  } else if (document.readyState === "interactive" && !window.attachEvent && (!window.HTMLImports || window.HTMLImports.ready)) {
    bootstrap();
  } else {
    var loadEvent = window.HTMLImports && !window.HTMLImports.ready ? "HTMLImportsLoaded" : "DOMContentLoaded";
    window.addEventListener(loadEvent, bootstrap);
  }
})(window.CustomElements);

(function(scope) {
  var style = document.createElement("style");
  style.textContent = "" + "body {" + "transition: opacity ease-in 0.2s;" + " } \n" + "body[unresolved] {" + "opacity: 0; display: block; overflow: hidden; position: relative;" + " } \n";
  var head = document.querySelector("head");
  head.insertBefore(style, head.firstChild);
})(window.WebComponents);
/*!
 * PEP v0.4.0 | https://github.com/jquery/PEP
 * Copyright jQuery Foundation and other contributors | http://jquery.org/license
 */
(function (global, factory) {
  typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
  typeof define === 'function' && define.amd ? define(factory) :
  global.PointerEventsPolyfill = factory()
}(this, function () { 'use strict';

  /**
   * This is the constructor for new PointerEvents.
   *
   * New Pointer Events must be given a type, and an optional dictionary of
   * initialization properties.
   *
   * Due to certain platform requirements, events returned from the constructor
   * identify as MouseEvents.
   *
   * @constructor
   * @param {String} inType The type of the event to create.
   * @param {Object} [inDict] An optional dictionary of initial event properties.
   * @return {Event} A new PointerEvent of type `inType`, initialized with properties from `inDict`.
   */
  var MOUSE_PROPS = [
    'bubbles',
    'cancelable',
    'view',
    'detail',
    'screenX',
    'screenY',
    'clientX',
    'clientY',
    'ctrlKey',
    'altKey',
    'shiftKey',
    'metaKey',
    'button',
    'relatedTarget',
    'pageX',
    'pageY'
  ];

  var MOUSE_DEFAULTS = [
    false,
    false,
    null,
    null,
    0,
    0,
    0,
    0,
    false,
    false,
    false,
    false,
    0,
    null,
    0,
    0
  ];

  function PointerEvent(inType, inDict) {
    inDict = inDict || Object.create(null);

    var e = document.createEvent('Event');
    e.initEvent(inType, inDict.bubbles || false, inDict.cancelable || false);

    // define inherited MouseEvent properties
    // skip bubbles and cancelable since they're set above in initEvent()
    for (var i = 2, p; i < MOUSE_PROPS.length; i++) {
      p = MOUSE_PROPS[i];
      e[p] = inDict[p] || MOUSE_DEFAULTS[i];
    }
    e.buttons = inDict.buttons || 0;

    // Spec requires that pointers without pressure specified use 0.5 for down
    // state and 0 for up state.
    var pressure = 0;
    if (inDict.pressure) {
      pressure = inDict.pressure;
    } else {
      pressure = e.buttons ? 0.5 : 0;
    }

    // add x/y properties aliased to clientX/Y
    e.x = e.clientX;
    e.y = e.clientY;

    // define the properties of the PointerEvent interface
    e.pointerId = inDict.pointerId || 0;
    e.width = inDict.width || 0;
    e.height = inDict.height || 0;
    e.pressure = pressure;
    e.tiltX = inDict.tiltX || 0;
    e.tiltY = inDict.tiltY || 0;
    e.pointerType = inDict.pointerType || '';
    e.hwTimestamp = inDict.hwTimestamp || 0;
    e.isPrimary = inDict.isPrimary || false;
    return e;
  }

  var _PointerEvent = PointerEvent;

  /**
   * This module implements a map of pointer states
   */
  var USE_MAP = window.Map && window.Map.prototype.forEach;
  var PointerMap = USE_MAP ? Map : SparseArrayMap;

  function SparseArrayMap() {
    this.array = [];
    this.size = 0;
  }

  SparseArrayMap.prototype = {
    set: function(k, v) {
      if (v === undefined) {
        return this.delete(k);
      }
      if (!this.has(k)) {
        this.size++;
      }
      this.array[k] = v;
    },
    has: function(k) {
      return this.array[k] !== undefined;
    },
    delete: function(k) {
      if (this.has(k)) {
        delete this.array[k];
        this.size--;
      }
    },
    get: function(k) {
      return this.array[k];
    },
    clear: function() {
      this.array.length = 0;
      this.size = 0;
    },

    // return value, key, map
    forEach: function(callback, thisArg) {
      return this.array.forEach(function(v, k) {
        callback.call(thisArg, v, k, this);
      }, this);
    }
  };

  var _pointermap = PointerMap;

  var CLONE_PROPS = [

    // MouseEvent
    'bubbles',
    'cancelable',
    'view',
    'detail',
    'screenX',
    'screenY',
    'clientX',
    'clientY',
    'ctrlKey',
    'altKey',
    'shiftKey',
    'metaKey',
    'button',
    'relatedTarget',

    // DOM Level 3
    'buttons',

    // PointerEvent
    'pointerId',
    'width',
    'height',
    'pressure',
    'tiltX',
    'tiltY',
    'pointerType',
    'hwTimestamp',
    'isPrimary',

    // event instance
    'type',
    'target',
    'currentTarget',
    'which',
    'pageX',
    'pageY',
    'timeStamp'
  ];

  var CLONE_DEFAULTS = [

    // MouseEvent
    false,
    false,
    null,
    null,
    0,
    0,
    0,
    0,
    false,
    false,
    false,
    false,
    0,
    null,

    // DOM Level 3
    0,

    // PointerEvent
    0,
    0,
    0,
    0,
    0,
    0,
    '',
    0,
    false,

    // event instance
    '',
    null,
    null,
    0,
    0,
    0,
    0
  ];

  var HAS_SVG_INSTANCE = (typeof SVGElementInstance !== 'undefined');

  /**
   * This module is for normalizing events. Mouse and Touch events will be
   * collected here, and fire PointerEvents that have the same semantics, no
   * matter the source.
   * Events fired:
   *   - pointerdown: a pointing is added
   *   - pointerup: a pointer is removed
   *   - pointermove: a pointer is moved
   *   - pointerover: a pointer crosses into an element
   *   - pointerout: a pointer leaves an element
   *   - pointercancel: a pointer will no longer generate events
   */
  var dispatcher = {
    pointermap: new _pointermap(),
    eventMap: Object.create(null),
    captureInfo: Object.create(null),

    // Scope objects for native events.
    // This exists for ease of testing.
    eventSources: Object.create(null),
    eventSourceList: [],
    /**
     * Add a new event source that will generate pointer events.
     *
     * `inSource` must contain an array of event names named `events`, and
     * functions with the names specified in the `events` array.
     * @param {string} name A name for the event source
     * @param {Object} source A new source of platform events.
     */
    registerSource: function(name, source) {
      var s = source;
      var newEvents = s.events;
      if (newEvents) {
        newEvents.forEach(function(e) {
          if (s[e]) {
            this.eventMap[e] = s[e].bind(s);
          }
        }, this);
        this.eventSources[name] = s;
        this.eventSourceList.push(s);
      }
    },
    register: function(element) {
      var l = this.eventSourceList.length;
      for (var i = 0, es; (i < l) && (es = this.eventSourceList[i]); i++) {

        // call eventsource register
        es.register.call(es, element);
      }
    },
    unregister: function(element) {
      var l = this.eventSourceList.length;
      for (var i = 0, es; (i < l) && (es = this.eventSourceList[i]); i++) {

        // call eventsource register
        es.unregister.call(es, element);
      }
    },
    contains: /*scope.external.contains || */function(container, contained) {
      try {
        return container.contains(contained);
      } catch (ex) {

        // most likely: https://bugzilla.mozilla.org/show_bug.cgi?id=208427
        return false;
      }
    },

    // EVENTS
    down: function(inEvent) {
      inEvent.bubbles = true;
      this.fireEvent('pointerdown', inEvent);
    },
    move: function(inEvent) {
      inEvent.bubbles = true;
      this.fireEvent('pointermove', inEvent);
    },
    up: function(inEvent) {
      inEvent.bubbles = true;
      this.fireEvent('pointerup', inEvent);
    },
    enter: function(inEvent) {
      inEvent.bubbles = false;
      this.fireEvent('pointerenter', inEvent);
    },
    leave: function(inEvent) {
      inEvent.bubbles = false;
      this.fireEvent('pointerleave', inEvent);
    },
    over: function(inEvent) {
      inEvent.bubbles = true;
      this.fireEvent('pointerover', inEvent);
    },
    out: function(inEvent) {
      inEvent.bubbles = true;
      this.fireEvent('pointerout', inEvent);
    },
    cancel: function(inEvent) {
      inEvent.bubbles = true;
      this.fireEvent('pointercancel', inEvent);
    },
    leaveOut: function(event) {
      this.out(event);
      if (!this.contains(event.target, event.relatedTarget)) {
        this.leave(event);
      }
    },
    enterOver: function(event) {
      this.over(event);
      if (!this.contains(event.target, event.relatedTarget)) {
        this.enter(event);
      }
    },

    // LISTENER LOGIC
    eventHandler: function(inEvent) {

      // This is used to prevent multiple dispatch of pointerevents from
      // platform events. This can happen when two elements in different scopes
      // are set up to create pointer events, which is relevant to Shadow DOM.
      if (inEvent._handledByPE) {
        return;
      }
      var type = inEvent.type;
      var fn = this.eventMap && this.eventMap[type];
      if (fn) {
        fn(inEvent);
      }
      inEvent._handledByPE = true;
    },

    // set up event listeners
    listen: function(target, events) {
      events.forEach(function(e) {
        this.addEvent(target, e);
      }, this);
    },

    // remove event listeners
    unlisten: function(target, events) {
      events.forEach(function(e) {
        this.removeEvent(target, e);
      }, this);
    },
    addEvent: /*scope.external.addEvent || */function(target, eventName) {
      target.addEventListener(eventName, this.boundHandler);
    },
    removeEvent: /*scope.external.removeEvent || */function(target, eventName) {
      target.removeEventListener(eventName, this.boundHandler);
    },

    // EVENT CREATION AND TRACKING
    /**
     * Creates a new Event of type `inType`, based on the information in
     * `inEvent`.
     *
     * @param {string} inType A string representing the type of event to create
     * @param {Event} inEvent A platform event with a target
     * @return {Event} A PointerEvent of type `inType`
     */
    makeEvent: function(inType, inEvent) {

      // relatedTarget must be null if pointer is captured
      if (this.captureInfo[inEvent.pointerId]) {
        inEvent.relatedTarget = null;
      }
      var e = new _PointerEvent(inType, inEvent);
      if (inEvent.preventDefault) {
        e.preventDefault = inEvent.preventDefault;
      }
      e._target = e._target || inEvent.target;
      return e;
    },

    // make and dispatch an event in one call
    fireEvent: function(inType, inEvent) {
      var e = this.makeEvent(inType, inEvent);
      return this.dispatchEvent(e);
    },
    /**
     * Returns a snapshot of inEvent, with writable properties.
     *
     * @param {Event} inEvent An event that contains properties to copy.
     * @return {Object} An object containing shallow copies of `inEvent`'s
     *    properties.
     */
    cloneEvent: function(inEvent) {
      var eventCopy = Object.create(null);
      var p;
      for (var i = 0; i < CLONE_PROPS.length; i++) {
        p = CLONE_PROPS[i];
        eventCopy[p] = inEvent[p] || CLONE_DEFAULTS[i];

        // Work around SVGInstanceElement shadow tree
        // Return the <use> element that is represented by the instance for Safari, Chrome, IE.
        // This is the behavior implemented by Firefox.
        if (HAS_SVG_INSTANCE && (p === 'target' || p === 'relatedTarget')) {
          if (eventCopy[p] instanceof SVGElementInstance) {
            eventCopy[p] = eventCopy[p].correspondingUseElement;
          }
        }
      }

      // keep the semantics of preventDefault
      if (inEvent.preventDefault) {
        eventCopy.preventDefault = function() {
          inEvent.preventDefault();
        };
      }
      return eventCopy;
    },
    getTarget: function(inEvent) {

      // if pointer capture is set, route all events for the specified pointerId
      // to the capture target
      return this.captureInfo[inEvent.pointerId] || inEvent._target;
    },
    setCapture: function(inPointerId, inTarget) {
      if (this.captureInfo[inPointerId]) {
        this.releaseCapture(inPointerId);
      }
      this.captureInfo[inPointerId] = inTarget;
      var e = document.createEvent('Event');
      e.initEvent('gotpointercapture', true, false);
      e.pointerId = inPointerId;
      this.implicitRelease = this.releaseCapture.bind(this, inPointerId);
      document.addEventListener('pointerup', this.implicitRelease);
      document.addEventListener('pointercancel', this.implicitRelease);
      e._target = inTarget;
      this.asyncDispatchEvent(e);
    },
    releaseCapture: function(inPointerId) {
      var t = this.captureInfo[inPointerId];
      if (t) {
        var e = document.createEvent('Event');
        e.initEvent('lostpointercapture', true, false);
        e.pointerId = inPointerId;
        this.captureInfo[inPointerId] = undefined;
        document.removeEventListener('pointerup', this.implicitRelease);
        document.removeEventListener('pointercancel', this.implicitRelease);
        e._target = t;
        this.asyncDispatchEvent(e);
      }
    },
    /**
     * Dispatches the event to its target.
     *
     * @param {Event} inEvent The event to be dispatched.
     * @return {Boolean} True if an event handler returns true, false otherwise.
     */
    dispatchEvent: /*scope.external.dispatchEvent || */function(inEvent) {
      var t = this.getTarget(inEvent);
      if (t) {
        return t.dispatchEvent(inEvent);
      }
    },
    asyncDispatchEvent: function(inEvent) {
      requestAnimationFrame(this.dispatchEvent.bind(this, inEvent));
    }
  };
  dispatcher.boundHandler = dispatcher.eventHandler.bind(dispatcher);

  var _dispatcher = dispatcher;

  var targeting = {
    shadow: function(inEl) {
      if (inEl) {
        return inEl.shadowRoot || inEl.webkitShadowRoot;
      }
    },
    canTarget: function(shadow) {
      return shadow && Boolean(shadow.elementFromPoint);
    },
    targetingShadow: function(inEl) {
      var s = this.shadow(inEl);
      if (this.canTarget(s)) {
        return s;
      }
    },
    olderShadow: function(shadow) {
      var os = shadow.olderShadowRoot;
      if (!os) {
        var se = shadow.querySelector('shadow');
        if (se) {
          os = se.olderShadowRoot;
        }
      }
      return os;
    },
    allShadows: function(element) {
      var shadows = [];
      var s = this.shadow(element);
      while (s) {
        shadows.push(s);
        s = this.olderShadow(s);
      }
      return shadows;
    },
    searchRoot: function(inRoot, x, y) {
      if (inRoot) {
        var t = inRoot.elementFromPoint(x, y);
        var st, sr;

        // is element a shadow host?
        sr = this.targetingShadow(t);
        while (sr) {

          // find the the element inside the shadow root
          st = sr.elementFromPoint(x, y);
          if (!st) {

            // check for older shadows
            sr = this.olderShadow(sr);
          } else {

            // shadowed element may contain a shadow root
            var ssr = this.targetingShadow(st);
            return this.searchRoot(ssr, x, y) || st;
          }
        }

        // light dom element is the target
        return t;
      }
    },
    owner: function(element) {
      var s = element;

      // walk up until you hit the shadow root or document
      while (s.parentNode) {
        s = s.parentNode;
      }

      // the owner element is expected to be a Document or ShadowRoot
      if (s.nodeType !== Node.DOCUMENT_NODE && s.nodeType !== Node.DOCUMENT_FRAGMENT_NODE) {
        s = document;
      }
      return s;
    },
    findTarget: function(inEvent) {
      var x = inEvent.clientX;
      var y = inEvent.clientY;

      // if the listener is in the shadow root, it is much faster to start there
      var s = this.owner(inEvent.target);

      // if x, y is not in this root, fall back to document search
      if (!s.elementFromPoint(x, y)) {
        s = document;
      }
      return this.searchRoot(s, x, y);
    }
  };

  /**
   * This module uses Mutation Observers to dynamically adjust which nodes will
   * generate Pointer Events.
   *
   * All nodes that wish to generate Pointer Events must have the attribute
   * `touch-action` set to `none`.
   */
  var forEach = Array.prototype.forEach.call.bind(Array.prototype.forEach);
  var map = Array.prototype.map.call.bind(Array.prototype.map);
  var toArray = Array.prototype.slice.call.bind(Array.prototype.slice);
  var filter = Array.prototype.filter.call.bind(Array.prototype.filter);
  var MO = window.MutationObserver || window.WebKitMutationObserver;
  var SELECTOR = '[touch-action]';
  var OBSERVER_INIT = {
    subtree: true,
    childList: true,
    attributes: true,
    attributeOldValue: true,
    attributeFilter: ['touch-action']
  };

  function Installer(add, remove, changed, binder) {
    this.addCallback = add.bind(binder);
    this.removeCallback = remove.bind(binder);
    this.changedCallback = changed.bind(binder);
    if (MO) {
      this.observer = new MO(this.mutationWatcher.bind(this));
    }
  }

  Installer.prototype = {
    watchSubtree: function(target) {

      // Only watch scopes that can target find, as these are top-level.
      // Otherwise we can see duplicate additions and removals that add noise.
      //
      // TODO(dfreedman): For some instances with ShadowDOMPolyfill, we can see
      // a removal without an insertion when a node is redistributed among
      // shadows. Since it all ends up correct in the document, watching only
      // the document will yield the correct mutations to watch.
      if (this.observer && targeting.canTarget(target)) {
        this.observer.observe(target, OBSERVER_INIT);
      }
    },
    enableOnSubtree: function(target) {
      this.watchSubtree(target);
      if (target === document && document.readyState !== 'complete') {
        this.installOnLoad();
      } else {
        this.installNewSubtree(target);
      }
    },
    installNewSubtree: function(target) {
      forEach(this.findElements(target), this.addElement, this);
    },
    findElements: function(target) {
      if (target.querySelectorAll) {
        return target.querySelectorAll(SELECTOR);
      }
      return [];
    },
    removeElement: function(el) {
      this.removeCallback(el);
    },
    addElement: function(el) {
      this.addCallback(el);
    },
    elementChanged: function(el, oldValue) {
      this.changedCallback(el, oldValue);
    },
    concatLists: function(accum, list) {
      return accum.concat(toArray(list));
    },

    // register all touch-action = none nodes on document load
    installOnLoad: function() {
      document.addEventListener('readystatechange', function() {
        if (document.readyState === 'complete') {
          this.installNewSubtree(document);
        }
      }.bind(this));
    },
    isElement: function(n) {
      return n.nodeType === Node.ELEMENT_NODE;
    },
    flattenMutationTree: function(inNodes) {

      // find children with touch-action
      var tree = map(inNodes, this.findElements, this);

      // make sure the added nodes are accounted for
      tree.push(filter(inNodes, this.isElement));

      // flatten the list
      return tree.reduce(this.concatLists, []);
    },
    mutationWatcher: function(mutations) {
      mutations.forEach(this.mutationHandler, this);
    },
    mutationHandler: function(m) {
      if (m.type === 'childList') {
        var added = this.flattenMutationTree(m.addedNodes);
        added.forEach(this.addElement, this);
        var removed = this.flattenMutationTree(m.removedNodes);
        removed.forEach(this.removeElement, this);
      } else if (m.type === 'attributes') {
        this.elementChanged(m.target, m.oldValue);
      }
    }
  };

  var installer = Installer;

  function shadowSelector(v) {
    return 'body /shadow-deep/ ' + selector(v);
  }
  function selector(v) {
    return '[touch-action="' + v + '"]';
  }
  function rule(v) {
    return '{ -ms-touch-action: ' + v + '; touch-action: ' + v + '; touch-action-delay: none; }';
  }
  var attrib2css = [
    'none',
    'auto',
    'pan-x',
    'pan-y',
    {
      rule: 'pan-x pan-y',
      selectors: [
        'pan-x pan-y',
        'pan-y pan-x'
      ]
    }
  ];
  var styles = '';

  // only install stylesheet if the browser has touch action support
  var hasNativePE = window.PointerEvent || window.MSPointerEvent;

  // only add shadow selectors if shadowdom is supported
  var hasShadowRoot = !window.ShadowDOMPolyfill && document.head.createShadowRoot;

  function applyAttributeStyles() {
    if (hasNativePE) {
      attrib2css.forEach(function(r) {
        if (String(r) === r) {
          styles += selector(r) + rule(r) + '\n';
          if (hasShadowRoot) {
            styles += shadowSelector(r) + rule(r) + '\n';
          }
        } else {
          styles += r.selectors.map(selector) + rule(r.rule) + '\n';
          if (hasShadowRoot) {
            styles += r.selectors.map(shadowSelector) + rule(r.rule) + '\n';
          }
        }
      });

      var el = document.createElement('style');
      el.textContent = styles;
      document.head.appendChild(el);
    }
  }

  var mouse__pointermap = _dispatcher.pointermap;

  // radius around touchend that swallows mouse events
  var DEDUP_DIST = 25;

  // left, middle, right, back, forward
  var BUTTON_TO_BUTTONS = [1, 4, 2, 8, 16];

  var HAS_BUTTONS = false;
  try {
    HAS_BUTTONS = new MouseEvent('test', { buttons: 1 }).buttons === 1;
  } catch (e) {}

  // handler block for native mouse events
  var mouseEvents = {
    POINTER_ID: 1,
    POINTER_TYPE: 'mouse',
    events: [
      'mousedown',
      'mousemove',
      'mouseup',
      'mouseover',
      'mouseout'
    ],
    register: function(target) {
      _dispatcher.listen(target, this.events);
    },
    unregister: function(target) {
      _dispatcher.unlisten(target, this.events);
    },
    lastTouches: [],

    // collide with the global mouse listener
    isEventSimulatedFromTouch: function(inEvent) {
      var lts = this.lastTouches;
      var x = inEvent.clientX;
      var y = inEvent.clientY;
      for (var i = 0, l = lts.length, t; i < l && (t = lts[i]); i++) {

        // simulated mouse events will be swallowed near a primary touchend
        var dx = Math.abs(x - t.x);
        var dy = Math.abs(y - t.y);
        if (dx <= DEDUP_DIST && dy <= DEDUP_DIST) {
          return true;
        }
      }
    },
    prepareEvent: function(inEvent) {
      var e = _dispatcher.cloneEvent(inEvent);

      // forward mouse preventDefault
      var pd = e.preventDefault;
      e.preventDefault = function() {
        inEvent.preventDefault();
        pd();
      };
      e.pointerId = this.POINTER_ID;
      e.isPrimary = true;
      e.pointerType = this.POINTER_TYPE;
      return e;
    },
    prepareButtonsForMove: function(e, inEvent) {
      var p = mouse__pointermap.get(this.POINTER_ID);
      e.buttons = p ? p.buttons : 0;
      inEvent.buttons = e.buttons;
    },
    mousedown: function(inEvent) {
      if (!this.isEventSimulatedFromTouch(inEvent)) {
        var p = mouse__pointermap.get(this.POINTER_ID);
        var e = this.prepareEvent(inEvent);
        if (!HAS_BUTTONS) {
          e.buttons = BUTTON_TO_BUTTONS[e.button];
          if (p) { e.buttons |= p.buttons; }
          inEvent.buttons = e.buttons;
        }
        mouse__pointermap.set(this.POINTER_ID, inEvent);
        if (!p) {
          _dispatcher.down(e);
        } else {
          _dispatcher.move(e);
        }
      }
    },
    mousemove: function(inEvent) {
      if (!this.isEventSimulatedFromTouch(inEvent)) {
        var e = this.prepareEvent(inEvent);
        if (!HAS_BUTTONS) { this.prepareButtonsForMove(e, inEvent); }
        _dispatcher.move(e);
      }
    },
    mouseup: function(inEvent) {
      if (!this.isEventSimulatedFromTouch(inEvent)) {
        var p = mouse__pointermap.get(this.POINTER_ID);
        var e = this.prepareEvent(inEvent);
        if (!HAS_BUTTONS) {
          var up = BUTTON_TO_BUTTONS[e.button];

          // Produces wrong state of buttons in Browsers without `buttons` support
          // when a mouse button that was pressed outside the document is released
          // inside and other buttons are still pressed down.
          e.buttons = p ? p.buttons & ~up : 0;
          inEvent.buttons = e.buttons;
        }
        mouse__pointermap.set(this.POINTER_ID, inEvent);
        if (e.buttons === 0 || e.buttons === BUTTON_TO_BUTTONS[e.button]) {
          this.cleanupMouse();
          _dispatcher.up(e);
        } else {
          _dispatcher.move(e);
        }
      }
    },
    mouseover: function(inEvent) {
      if (!this.isEventSimulatedFromTouch(inEvent)) {
        var e = this.prepareEvent(inEvent);
        if (!HAS_BUTTONS) { this.prepareButtonsForMove(e, inEvent); }
        _dispatcher.enterOver(e);
      }
    },
    mouseout: function(inEvent) {
      if (!this.isEventSimulatedFromTouch(inEvent)) {
        var e = this.prepareEvent(inEvent);
        if (!HAS_BUTTONS) { this.prepareButtonsForMove(e, inEvent); }
        _dispatcher.leaveOut(e);
      }
    },
    cancel: function(inEvent) {
      var e = this.prepareEvent(inEvent);
      _dispatcher.cancel(e);
      this.cleanupMouse();
    },
    cleanupMouse: function() {
      mouse__pointermap.delete(this.POINTER_ID);
    }
  };

  var mouse = mouseEvents;

  var captureInfo = _dispatcher.captureInfo;
  var findTarget = targeting.findTarget.bind(targeting);
  var allShadows = targeting.allShadows.bind(targeting);
  var touch__pointermap = _dispatcher.pointermap;

  // This should be long enough to ignore compat mouse events made by touch
  var DEDUP_TIMEOUT = 2500;
  var CLICK_COUNT_TIMEOUT = 200;
  var ATTRIB = 'touch-action';
  var INSTALLER;

  // The presence of touch event handlers blocks scrolling, and so we must be careful to
  // avoid adding handlers unnecessarily.  Chrome plans to add a touch-action-delay property
  // (crbug.com/329559) to address this, and once we have that we can opt-in to a simpler
  // handler registration mechanism.  Rather than try to predict how exactly to opt-in to
  // that we'll just leave this disabled until there is a build of Chrome to test.
  var HAS_TOUCH_ACTION_DELAY = false;

  // handler block for native touch events
  var touchEvents = {
    events: [
      'touchstart',
      'touchmove',
      'touchend',
      'touchcancel'
    ],
    register: function(target) {
      if (HAS_TOUCH_ACTION_DELAY) {
        _dispatcher.listen(target, this.events);
      } else {
        INSTALLER.enableOnSubtree(target);
      }
    },
    unregister: function(target) {
      if (HAS_TOUCH_ACTION_DELAY) {
        _dispatcher.unlisten(target, this.events);
      } else {

        // TODO(dfreedman): is it worth it to disconnect the MO?
      }
    },
    elementAdded: function(el) {
      var a = el.getAttribute(ATTRIB);
      var st = this.touchActionToScrollType(a);
      if (st) {
        el._scrollType = st;
        _dispatcher.listen(el, this.events);

        // set touch-action on shadows as well
        allShadows(el).forEach(function(s) {
          s._scrollType = st;
          _dispatcher.listen(s, this.events);
        }, this);
      }
    },
    elementRemoved: function(el) {
      el._scrollType = undefined;
      _dispatcher.unlisten(el, this.events);

      // remove touch-action from shadow
      allShadows(el).forEach(function(s) {
        s._scrollType = undefined;
        _dispatcher.unlisten(s, this.events);
      }, this);
    },
    elementChanged: function(el, oldValue) {
      var a = el.getAttribute(ATTRIB);
      var st = this.touchActionToScrollType(a);
      var oldSt = this.touchActionToScrollType(oldValue);

      // simply update scrollType if listeners are already established
      if (st && oldSt) {
        el._scrollType = st;
        allShadows(el).forEach(function(s) {
          s._scrollType = st;
        }, this);
      } else if (oldSt) {
        this.elementRemoved(el);
      } else if (st) {
        this.elementAdded(el);
      }
    },
    scrollTypes: {
      EMITTER: 'none',
      XSCROLLER: 'pan-x',
      YSCROLLER: 'pan-y',
      SCROLLER: /^(?:pan-x pan-y)|(?:pan-y pan-x)|auto$/
    },
    touchActionToScrollType: function(touchAction) {
      var t = touchAction;
      var st = this.scrollTypes;
      if (t === 'none') {
        return 'none';
      } else if (t === st.XSCROLLER) {
        return 'X';
      } else if (t === st.YSCROLLER) {
        return 'Y';
      } else if (st.SCROLLER.exec(t)) {
        return 'XY';
      }
    },
    POINTER_TYPE: 'touch',
    firstTouch: null,
    isPrimaryTouch: function(inTouch) {
      return this.firstTouch === inTouch.identifier;
    },
    setPrimaryTouch: function(inTouch) {

      // set primary touch if there no pointers, or the only pointer is the mouse
      if (touch__pointermap.size === 0 || (touch__pointermap.size === 1 && touch__pointermap.has(1))) {
        this.firstTouch = inTouch.identifier;
        this.firstXY = { X: inTouch.clientX, Y: inTouch.clientY };
        this.scrolling = false;
        this.cancelResetClickCount();
      }
    },
    removePrimaryPointer: function(inPointer) {
      if (inPointer.isPrimary) {
        this.firstTouch = null;
        this.firstXY = null;
        this.resetClickCount();
      }
    },
    clickCount: 0,
    resetId: null,
    resetClickCount: function() {
      var fn = function() {
        this.clickCount = 0;
        this.resetId = null;
      }.bind(this);
      this.resetId = setTimeout(fn, CLICK_COUNT_TIMEOUT);
    },
    cancelResetClickCount: function() {
      if (this.resetId) {
        clearTimeout(this.resetId);
      }
    },
    typeToButtons: function(type) {
      var ret = 0;
      if (type === 'touchstart' || type === 'touchmove') {
        ret = 1;
      }
      return ret;
    },
    touchToPointer: function(inTouch) {
      var cte = this.currentTouchEvent;
      var e = _dispatcher.cloneEvent(inTouch);

      // We reserve pointerId 1 for Mouse.
      // Touch identifiers can start at 0.
      // Add 2 to the touch identifier for compatibility.
      var id = e.pointerId = inTouch.identifier + 2;
      e.target = captureInfo[id] || findTarget(e);
      e.bubbles = true;
      e.cancelable = true;
      e.detail = this.clickCount;
      e.button = 0;
      e.buttons = this.typeToButtons(cte.type);
      e.width = inTouch.radiusX || inTouch.webkitRadiusX || 0;
      e.height = inTouch.radiusY || inTouch.webkitRadiusY || 0;
      e.pressure = inTouch.force || inTouch.webkitForce || 0.5;
      e.isPrimary = this.isPrimaryTouch(inTouch);
      e.pointerType = this.POINTER_TYPE;

      // forward touch preventDefaults
      var self = this;
      e.preventDefault = function() {
        self.scrolling = false;
        self.firstXY = null;
        cte.preventDefault();
      };
      return e;
    },
    processTouches: function(inEvent, inFunction) {
      var tl = inEvent.changedTouches;
      this.currentTouchEvent = inEvent;
      for (var i = 0, t; i < tl.length; i++) {
        t = tl[i];
        inFunction.call(this, this.touchToPointer(t));
      }
    },

    // For single axis scrollers, determines whether the element should emit
    // pointer events or behave as a scroller
    shouldScroll: function(inEvent) {
      if (this.firstXY) {
        var ret;
        var scrollAxis = inEvent.currentTarget._scrollType;
        if (scrollAxis === 'none') {

          // this element is a touch-action: none, should never scroll
          ret = false;
        } else if (scrollAxis === 'XY') {

          // this element should always scroll
          ret = true;
        } else {
          var t = inEvent.changedTouches[0];

          // check the intended scroll axis, and other axis
          var a = scrollAxis;
          var oa = scrollAxis === 'Y' ? 'X' : 'Y';
          var da = Math.abs(t['client' + a] - this.firstXY[a]);
          var doa = Math.abs(t['client' + oa] - this.firstXY[oa]);

          // if delta in the scroll axis > delta other axis, scroll instead of
          // making events
          ret = da >= doa;
        }
        this.firstXY = null;
        return ret;
      }
    },
    findTouch: function(inTL, inId) {
      for (var i = 0, l = inTL.length, t; i < l && (t = inTL[i]); i++) {
        if (t.identifier === inId) {
          return true;
        }
      }
    },

    // In some instances, a touchstart can happen without a touchend. This
    // leaves the pointermap in a broken state.
    // Therefore, on every touchstart, we remove the touches that did not fire a
    // touchend event.
    // To keep state globally consistent, we fire a
    // pointercancel for this "abandoned" touch
    vacuumTouches: function(inEvent) {
      var tl = inEvent.touches;

      // pointermap.size should be < tl.length here, as the touchstart has not
      // been processed yet.
      if (touch__pointermap.size >= tl.length) {
        var d = [];
        touch__pointermap.forEach(function(value, key) {

          // Never remove pointerId == 1, which is mouse.
          // Touch identifiers are 2 smaller than their pointerId, which is the
          // index in pointermap.
          if (key !== 1 && !this.findTouch(tl, key - 2)) {
            var p = value.out;
            d.push(p);
          }
        }, this);
        d.forEach(this.cancelOut, this);
      }
    },
    touchstart: function(inEvent) {
      this.vacuumTouches(inEvent);
      this.setPrimaryTouch(inEvent.changedTouches[0]);
      this.dedupSynthMouse(inEvent);
      if (!this.scrolling) {
        this.clickCount++;
        this.processTouches(inEvent, this.overDown);
      }
    },
    overDown: function(inPointer) {
      touch__pointermap.set(inPointer.pointerId, {
        target: inPointer.target,
        out: inPointer,
        outTarget: inPointer.target
      });
      _dispatcher.over(inPointer);
      _dispatcher.enter(inPointer);
      _dispatcher.down(inPointer);
    },
    touchmove: function(inEvent) {
      if (!this.scrolling) {
        if (this.shouldScroll(inEvent)) {
          this.scrolling = true;
          this.touchcancel(inEvent);
        } else {
          inEvent.preventDefault();
          this.processTouches(inEvent, this.moveOverOut);
        }
      }
    },
    moveOverOut: function(inPointer) {
      var event = inPointer;
      var pointer = touch__pointermap.get(event.pointerId);

      // a finger drifted off the screen, ignore it
      if (!pointer) {
        return;
      }
      var outEvent = pointer.out;
      var outTarget = pointer.outTarget;
      _dispatcher.move(event);
      if (outEvent && outTarget !== event.target) {
        outEvent.relatedTarget = event.target;
        event.relatedTarget = outTarget;

        // recover from retargeting by shadow
        outEvent.target = outTarget;
        if (event.target) {
          _dispatcher.leaveOut(outEvent);
          _dispatcher.enterOver(event);
        } else {

          // clean up case when finger leaves the screen
          event.target = outTarget;
          event.relatedTarget = null;
          this.cancelOut(event);
        }
      }
      pointer.out = event;
      pointer.outTarget = event.target;
    },
    touchend: function(inEvent) {
      this.dedupSynthMouse(inEvent);
      this.processTouches(inEvent, this.upOut);
    },
    upOut: function(inPointer) {
      if (!this.scrolling) {
        _dispatcher.up(inPointer);
        _dispatcher.out(inPointer);
        _dispatcher.leave(inPointer);
      }
      this.cleanUpPointer(inPointer);
    },
    touchcancel: function(inEvent) {
      this.processTouches(inEvent, this.cancelOut);
    },
    cancelOut: function(inPointer) {
      _dispatcher.cancel(inPointer);
      _dispatcher.out(inPointer);
      _dispatcher.leave(inPointer);
      this.cleanUpPointer(inPointer);
    },
    cleanUpPointer: function(inPointer) {
      touch__pointermap.delete(inPointer.pointerId);
      this.removePrimaryPointer(inPointer);
    },

    // prevent synth mouse events from creating pointer events
    dedupSynthMouse: function(inEvent) {
      var lts = mouse.lastTouches;
      var t = inEvent.changedTouches[0];

      // only the primary finger will synth mouse events
      if (this.isPrimaryTouch(t)) {

        // remember x/y of last touch
        var lt = { x: t.clientX, y: t.clientY };
        lts.push(lt);
        var fn = (function(lts, lt) {
          var i = lts.indexOf(lt);
          if (i > -1) {
            lts.splice(i, 1);
          }
        }).bind(null, lts, lt);
        setTimeout(fn, DEDUP_TIMEOUT);
      }
    }
  };

  if (!HAS_TOUCH_ACTION_DELAY) {
    INSTALLER = new installer(touchEvents.elementAdded, touchEvents.elementRemoved,
      touchEvents.elementChanged, touchEvents);
  }

  var touch = touchEvents;

  var ms__pointermap = _dispatcher.pointermap;
  var HAS_BITMAP_TYPE = window.MSPointerEvent &&
    typeof window.MSPointerEvent.MSPOINTER_TYPE_MOUSE === 'number';
  var msEvents = {
    events: [
      'MSPointerDown',
      'MSPointerMove',
      'MSPointerUp',
      'MSPointerOut',
      'MSPointerOver',
      'MSPointerCancel',
      'MSGotPointerCapture',
      'MSLostPointerCapture'
    ],
    register: function(target) {
      _dispatcher.listen(target, this.events);
    },
    unregister: function(target) {
      _dispatcher.unlisten(target, this.events);
    },
    POINTER_TYPES: [
      '',
      'unavailable',
      'touch',
      'pen',
      'mouse'
    ],
    prepareEvent: function(inEvent) {
      var e = inEvent;
      if (HAS_BITMAP_TYPE) {
        e = _dispatcher.cloneEvent(inEvent);
        e.pointerType = this.POINTER_TYPES[inEvent.pointerType];
      }
      return e;
    },
    cleanup: function(id) {
      ms__pointermap.delete(id);
    },
    MSPointerDown: function(inEvent) {
      ms__pointermap.set(inEvent.pointerId, inEvent);
      var e = this.prepareEvent(inEvent);
      _dispatcher.down(e);
    },
    MSPointerMove: function(inEvent) {
      var e = this.prepareEvent(inEvent);
      _dispatcher.move(e);
    },
    MSPointerUp: function(inEvent) {
      var e = this.prepareEvent(inEvent);
      _dispatcher.up(e);
      this.cleanup(inEvent.pointerId);
    },
    MSPointerOut: function(inEvent) {
      var e = this.prepareEvent(inEvent);
      _dispatcher.leaveOut(e);
    },
    MSPointerOver: function(inEvent) {
      var e = this.prepareEvent(inEvent);
      _dispatcher.enterOver(e);
    },
    MSPointerCancel: function(inEvent) {
      var e = this.prepareEvent(inEvent);
      _dispatcher.cancel(e);
      this.cleanup(inEvent.pointerId);
    },
    MSLostPointerCapture: function(inEvent) {
      var e = _dispatcher.makeEvent('lostpointercapture', inEvent);
      _dispatcher.dispatchEvent(e);
    },
    MSGotPointerCapture: function(inEvent) {
      var e = _dispatcher.makeEvent('gotpointercapture', inEvent);
      _dispatcher.dispatchEvent(e);
    }
  };

  var ms = msEvents;

  function platform_events__applyPolyfill() {

    // only activate if this platform does not have pointer events
    if (!window.PointerEvent) {
      window.PointerEvent = _PointerEvent;

      if (window.navigator.msPointerEnabled) {
        var tp = window.navigator.msMaxTouchPoints;
        Object.defineProperty(window.navigator, 'maxTouchPoints', {
          value: tp,
          enumerable: true
        });
        _dispatcher.registerSource('ms', ms);
      } else {
        _dispatcher.registerSource('mouse', mouse);
        if (window.ontouchstart !== undefined) {
          _dispatcher.registerSource('touch', touch);
        }
      }

      _dispatcher.register(document);
    }
  }

  var n = window.navigator;
  var s, r;
  function assertDown(id) {
    if (!_dispatcher.pointermap.has(id)) {
      throw new Error('InvalidPointerId');
    }
  }
  if (n.msPointerEnabled) {
    s = function(pointerId) {
      assertDown(pointerId);
      this.msSetPointerCapture(pointerId);
    };
    r = function(pointerId) {
      assertDown(pointerId);
      this.msReleasePointerCapture(pointerId);
    };
  } else {
    s = function setPointerCapture(pointerId) {
      assertDown(pointerId);
      _dispatcher.setCapture(pointerId, this);
    };
    r = function releasePointerCapture(pointerId) {
      assertDown(pointerId);
      _dispatcher.releaseCapture(pointerId, this);
    };
  }

  function capture__applyPolyfill() {
    if (window.Element && !Element.prototype.setPointerCapture) {
      Object.defineProperties(Element.prototype, {
        'setPointerCapture': {
          value: s
        },
        'releasePointerCapture': {
          value: r
        }
      });
    }
  }

  applyAttributeStyles();
  platform_events__applyPolyfill();
  capture__applyPolyfill();

  var pointerevents = {
    dispatcher: _dispatcher,
    Installer: installer,
    PointerEvent: _PointerEvent,
    PointerMap: _pointermap,
    targetFinding: targeting
  };

  return pointerevents;

}));

(function () {

/*** Variables ***/

  var win = window,
    doc = document,
    attrProto = {
      setAttribute: Element.prototype.setAttribute,
      removeAttribute: Element.prototype.removeAttribute
    },
    hasShadow = Element.prototype.createShadowRoot,
    container = doc.createElement('div'),
    noop = function(){},
    trueop = function(){ return true; },
    regexReplaceCommas = /,/g,
    regexCamelToDash = /([a-z])([A-Z])/g,
    regexPseudoParens = /\(|\)/g,
    regexPseudoCapture = /:(\w+)\u276A(.+?(?=\u276B))|:(\w+)/g,
    regexDigits = /(\d+)/g,
    keypseudo = {
      action: function (pseudo, event) {
        return pseudo.value.match(regexDigits).indexOf(String(event.keyCode)) > -1 == (pseudo.name == 'keypass') || null;
      }
    },
    /*
      - The prefix object generated here is added to the xtag object as xtag.prefix later in the code
      - Prefix provides a variety of prefix variations for the browser in which your code is running
      - The 4 variations of prefix are as follows:
        * prefix.dom: the correct prefix case and form when used on DOM elements/style properties
        * prefix.lowercase: a lowercase version of the prefix for use in various user-code situations
        * prefix.css: the lowercase, dashed version of the prefix
        * prefix.js: addresses prefixed APIs present in global and non-Element contexts
    */
    prefix = (function () {
      var styles = win.getComputedStyle(doc.documentElement, ''),
          pre = (Array.prototype.slice
            .call(styles)
            .join('')
            .match(/-(moz|webkit|ms)-/) || (styles.OLink === '' && ['', 'o'])
          )[1];
      return {
        dom: pre == 'ms' ? 'MS' : pre,
        lowercase: pre,
        css: '-' + pre + '-',
        js: pre == 'ms' ? pre : pre[0].toUpperCase() + pre.substr(1)
      };
    })(),
    matchSelector = Element.prototype.matches || Element.prototype.matchesSelector || Element.prototype[prefix.lowercase + 'MatchesSelector'];

/*** Functions ***/

// Utilities

  /*
    This is an enhanced typeof check for all types of objects. Where typeof would normaly return
    'object' for many common DOM objects (like NodeLists and HTMLCollections).
    - For example: typeOf(document.children) will correctly return 'htmlcollection'
  */
  var typeCache = {},
      typeString = typeCache.toString,
      typeRegexp = /\s([a-zA-Z]+)/;
  function typeOf(obj) {
    var type = typeString.call(obj);
    return typeCache[type] || (typeCache[type] = type.match(typeRegexp)[1].toLowerCase());
  }

  function clone(item, type){
    var fn = clone[type || typeOf(item)];
    return fn ? fn(item) : item;
  }
    clone.object = function(src){
      var obj = {};
      for (var key in src) obj[key] = clone(src[key]);
      return obj;
    };
    clone.array = function(src){
      var i = src.length, array = new Array(i);
      while (i--) array[i] = clone(src[i]);
      return array;
    };

  /*
    The toArray() method allows for conversion of any object to a true array. For types that
    cannot be converted to an array, the method returns a 1 item array containing the passed-in object.
  */
  var unsliceable = { 'undefined': 1, 'null': 1, 'number': 1, 'boolean': 1, 'string': 1, 'function': 1 };
  function toArray(obj){
    return unsliceable[typeOf(obj)] ? [obj] : Array.prototype.slice.call(obj, 0);
  }

// DOM

  var str = '';
  function query(element, selector){
    return (selector || str).length ? toArray(element.querySelectorAll(selector)) : [];
  }

// Pseudos

  function parsePseudo(fn){fn();}

// Mixins

  function mergeOne(source, key, current){
    var type = typeOf(current);
    if (type == 'object' && typeOf(source[key]) == 'object') xtag.merge(source[key], current);
    else source[key] = clone(current, type);
    return source;
  }

  function mergeMixin(tag, original, mixin, name) {
    var key, keys = {};
    for (var z in original) keys[z.split(':')[0]] = z;
    for (z in mixin) {
      key = keys[z.split(':')[0]];
      if (typeof original[key] == 'function') {
        if (!key.match(':mixins')) {
          original[key + ':mixins'] = original[key];
          delete original[key];
          key = key + ':mixins';
        }
        original[key].__mixin__ = xtag.applyPseudos(z + (z.match(':mixins') ? '' : ':mixins'), mixin[z], tag.pseudos, original[key].__mixin__);
      }
      else {
        original[z] = mixin[z];
        delete original[key];
      }
    }
  }

  var uniqueMixinCount = 0;
  function addMixin(tag, original, mixin){
    for (var z in mixin){
      original[z + ':__mixin__(' + (uniqueMixinCount++) + ')'] = xtag.applyPseudos(z, mixin[z], tag.pseudos);
    }
  }

  function resolveMixins(mixins, output){
    var index = mixins.length;
    while (index--){
      output.unshift(mixins[index]);
      if (xtag.mixins[mixins[index]].mixins) resolveMixins(xtag.mixins[mixins[index]].mixins, output);
    }
    return output;
  }

  function applyMixins(tag) {
    resolveMixins(tag.mixins, []).forEach(function(name){
      var mixin = xtag.mixins[name];
      for (var type in mixin) {
        var item = mixin[type],
            original = tag[type];
        if (!original) tag[type] = item;
        else {
          switch (type){
            case 'mixins': break;
            case 'events': addMixin(tag, original, item); break;
            case 'accessors':
            case 'prototype':
              for (var z in item) {
                if (!original[z]) original[z] = item[z];
                else mergeMixin(tag, original[z], item[z], name);
              }
              break;
            default: mergeMixin(tag, original, item, name);
          }
        }
      }
    });
    return tag;
  }

// Events

  function delegateAction(pseudo, event) {
    var match,
        target = event.target,
        root = event.currentTarget;
    while (!match && target && target != root) {
      if (target.tagName && matchSelector.call(target, pseudo.value)) match = target;
      target = target.parentNode;
    }
    if (!match && root.tagName && matchSelector.call(root, pseudo.value)) match = root;
    return match ? pseudo.listener = pseudo.listener.bind(match) : null;
  }

  function touchFilter(event){
    return event.button === 0;
  }

  function writeProperty(key, event, base, desc){
    if (desc) event[key] = base[key];
    else Object.defineProperty(event, key, {
      writable: true,
      enumerable: true,
      value: base[key]
    });
  }

  var skipProps = {};
  for (var z in doc.createEvent('CustomEvent')) skipProps[z] = 1;
  function inheritEvent(event, base){
    var desc = Object.getOwnPropertyDescriptor(event, 'target');
    for (var z in base) {
      if (!skipProps[z]) writeProperty(z, event, base, desc);
    }
    event.baseEvent = base;
  }

// Accessors

  function modAttr(element, attr, name, value, method){
    attrProto[method].call(element, name, attr && attr.boolean ? '' : value);
  }

  function syncAttr(element, attr, name, value, method){
    if (attr && (attr.property || attr.selector)) {
      var nodes = attr.property ? [element.xtag[attr.property]] : attr.selector ? xtag.query(element, attr.selector) : [],
          index = nodes.length;
      while (index--) nodes[index][method](name, value);
    }
  }

  function attachProperties(tag, prop, z, accessor, attr, name){
    var key = z.split(':'), type = key[0];
    if (type == 'get') {
      key[0] = prop;
      tag.prototype[prop].get = xtag.applyPseudos(key.join(':'), accessor[z], tag.pseudos, accessor[z]);
    }
    else if (type == 'set') {
      key[0] = prop;
      var setter = tag.prototype[prop].set = xtag.applyPseudos(key.join(':'), attr ? function(value){
        var old, method = 'setAttribute';
        if (attr.boolean){
          value = !!value;
          old = this.hasAttribute(name);
          if (!value) method = 'removeAttribute';
        }
        else {
          value = attr.validate ? attr.validate.call(this, value) : value;
          old = this.getAttribute(name);
        }
        modAttr(this, attr, name, value, method);
        accessor[z].call(this, value, old);
        syncAttr(this, attr, name, value, method);
      } : accessor[z] ? function(value){
        accessor[z].call(this, value);
      } : null, tag.pseudos, accessor[z]);

      if (attr) attr.setter = accessor[z];
    }
    else tag.prototype[prop][z] = accessor[z];
  }

  function parseAccessor(tag, prop){
    tag.prototype[prop] = {};
    var accessor = tag.accessors[prop],
        attr = accessor.attribute,
        name;

    if (attr) {
      name = attr.name = (attr ? (attr.name || prop.replace(regexCamelToDash, '$1-$2')) : prop).toLowerCase();
      attr.key = prop;
      tag.attributes[name] = attr;
    }

    for (var z in accessor) attachProperties(tag, prop, z, accessor, attr, name);

    if (attr) {
      if (!tag.prototype[prop].get) {
        var method = (attr.boolean ? 'has' : 'get') + 'Attribute';
        tag.prototype[prop].get = function(){
          return this[method](name);
        };
      }
      if (!tag.prototype[prop].set) tag.prototype[prop].set = function(value){
        value = attr.boolean ? !!value : attr.validate ? attr.validate.call(this, value) : value;
        var method = attr.boolean ? (value ? 'setAttribute' : 'removeAttribute') : 'setAttribute';
        modAttr(this, attr, name, value, method);
        syncAttr(this, attr, name, value, method);
      };
    }
  }

  var unwrapComment = /\/\*!?(?:\@preserve)?[ \t]*(?:\r\n|\n)([\s\S]*?)(?:\r\n|\n)\s*\*\//;
  function parseMultiline(fn){
    return typeof fn == 'function' ? unwrapComment.exec(fn.toString())[1] : fn;
  }

/*** X-Tag Object Definition ***/

  var xtag = {
    tags: {},
    defaultOptions: {
      pseudos: [],
      mixins: [],
      events: {},
      methods: {},
      accessors: {},
      lifecycle: {},
      attributes: {},
      'prototype': {
        xtag: {
          get: function(){
            return this.__xtag__ ? this.__xtag__ : (this.__xtag__ = { data: {} });
          }
        }
      }
    },
    register: function (name, options) {
      var _name;
      if (typeof name == 'string') _name = name.toLowerCase();
      else throw 'First argument must be a Custom Element string name';
      xtag.tags[_name] = options || {};

      var basePrototype = options.prototype;
      delete options.prototype;
      var tag = xtag.tags[_name].compiled = applyMixins(xtag.merge({}, xtag.defaultOptions, options));

      for (var z in tag.events) tag.events[z] = xtag.parseEvent(z, tag.events[z]);
      for (z in tag.lifecycle) tag.lifecycle[z.split(':')[0]] = xtag.applyPseudos(z, tag.lifecycle[z], tag.pseudos, tag.lifecycle[z]);
      for (z in tag.methods) tag.prototype[z.split(':')[0]] = { value: xtag.applyPseudos(z, tag.methods[z], tag.pseudos, tag.methods[z]), enumerable: true };
      for (z in tag.accessors) parseAccessor(tag, z);

      if (tag.shadow) tag.shadow = tag.shadow.nodeName ? tag.shadow : xtag.createFragment(tag.shadow);
      if (tag.content) tag.content = tag.content.nodeName ? tag.content.innerHTML : parseMultiline(tag.content);
      var created = tag.lifecycle.created;
      var finalized = tag.lifecycle.finalized;
      tag.prototype.createdCallback = {
        enumerable: true,
        value: function(){
          var element = this;
          if (tag.shadow && hasShadow) this.createShadowRoot().appendChild(tag.shadow.cloneNode(true));
          if (tag.content) this.appendChild(document.createElement('div')).outerHTML = tag.content;
          var output = created ? created.apply(this, arguments) : null;
          xtag.addEvents(this, tag.events);
          for (var name in tag.attributes) {
            var attr = tag.attributes[name],
                hasAttr = this.hasAttribute(name),
                hasDefault = attr.def !== undefined;
            if (hasAttr || attr.boolean || hasDefault) {
              this[attr.key] = attr.boolean ? hasAttr : !hasAttr && hasDefault ? attr.def : this.getAttribute(name);
            }
          }
          tag.pseudos.forEach(function(obj){
            obj.onAdd.call(element, obj);
          });
          this.xtagComponentReady = true;
          if (finalized) finalized.apply(this, arguments);
          return output;
        }
      };

      var inserted = tag.lifecycle.inserted,
          removed = tag.lifecycle.removed;
      if (inserted || removed) {
        tag.prototype.attachedCallback = { value: function(){
          if (removed) this.xtag.__parentNode__ = this.parentNode;
          if (inserted) return inserted.apply(this, arguments);
        }, enumerable: true };
      }
      if (removed) {
        tag.prototype.detachedCallback = { value: function(){
          var args = toArray(arguments);
          args.unshift(this.xtag.__parentNode__);
          var output = removed.apply(this, args);
          delete this.xtag.__parentNode__;
          return output;
        }, enumerable: true };
      }
      if (tag.lifecycle.attributeChanged) tag.prototype.attributeChangedCallback = { value: tag.lifecycle.attributeChanged, enumerable: true };

      tag.prototype.setAttribute = {
        writable: true,
        enumerable: true,
        value: function (name, value){
          var old;
          var _name = name.toLowerCase();
          var attr = tag.attributes[_name];
          if (attr) {
            old = this.getAttribute(_name);
            value = attr.boolean ? '' : attr.validate ? attr.validate.call(this, value) : value;
          }
          modAttr(this, attr, _name, value, 'setAttribute');
          if (attr) {
            if (attr.setter) attr.setter.call(this, attr.boolean ? true : value, old);
            syncAttr(this, attr, _name, value, 'setAttribute');
          }
        }
      };

      tag.prototype.removeAttribute = {
        writable: true,
        enumerable: true,
        value: function (name){
          var _name = name.toLowerCase();
          var attr = tag.attributes[_name];
          var old = this.hasAttribute(_name);
          modAttr(this, attr, _name, '', 'removeAttribute');
          if (attr) {
            if (attr.setter) attr.setter.call(this, attr.boolean ? false : undefined, old);
            syncAttr(this, attr, _name, '', 'removeAttribute');
          }
        }
      };

      var elementProto = basePrototype ?
            basePrototype :
            tag['extends'] ?
            Object.create(doc.createElement(tag['extends']).constructor).prototype :
            win.HTMLElement.prototype;

      var definition = {
        'prototype': Object.create(elementProto, tag.prototype)
      };
      if (tag['extends']) {
        definition['extends'] = tag['extends'];
      }
      var reg = doc.registerElement(_name, definition);
      return reg;
    },

    /* Exposed Variables */

    mixins: {},
    prefix: prefix,
    captureEvents: { focus: 1, blur: 1, scroll: 1, DOMMouseScroll: 1 },
    customEvents: {
      animationstart: {
        attach: [prefix.dom + 'AnimationStart']
      },
      animationend: {
        attach: [prefix.dom + 'AnimationEnd']
      },
      transitionend: {
        attach: [prefix.dom + 'TransitionEnd']
      },
      move: {
        attach: ['pointermove']
      },
      enter: {
        attach: ['pointerenter']
      },
      leave: {
        attach: ['pointerleave']
      },
      scrollwheel: {
        attach: ['DOMMouseScroll', 'mousewheel'],
        condition: function(event){
          event.delta = event.wheelDelta ? event.wheelDelta / 40 : Math.round(event.detail / 3.5 * -1);
          return true;
        }
      },
      tap: {
        attach: ['pointerdown', 'pointerup'],
        condition: function(event, custom){
          if (event.type == 'pointerdown') {
            custom.startX = event.clientX;
            custom.startY = event.clientY;
          }
          else if (event.button === 0 &&
                   Math.abs(custom.startX - event.clientX) < 10 &&
                   Math.abs(custom.startY - event.clientY) < 10) return true;
        }
      },
      tapstart: {
        attach: ['pointerdown'],
        condition: touchFilter
      },
      tapend: {
        attach: ['pointerup'],
        condition: touchFilter
      },
      tapmove: {
        attach: ['pointerdown', 'pointerup'],
        condition: function(event, custom){
          if (event.type == 'pointerdown') {
            if (!custom.moveListener) custom.moveListener = xtag.addEvent(this, 'pointermove', custom.listener);
          }
          else if (event.type == 'pointerup') {
            xtag.removeEvent(this, custom.moveListener);
            custom.moveListener = null;
          }
          else return true;
        }
      },
      taphold: {
        attach: ['pointerdown', 'pointerup'],
        condition: function(event, custom){
          if (event.type == 'pointerdown') {
            (custom.pointers = custom.pointers || {})[event.pointerId] = setTimeout(
              xtag.fireEvent.bind(null, this, 'taphold'),
              custom.duration || 1000
            );
          }
          else if (event.type == 'pointerup') {
            if (custom.pointers) {
              clearTimeout(custom.pointers[event.pointerId]);
              delete custom.pointers[event.pointerId];
            }
          }
          else return true;
        }
      }
    },
    pseudos: {
      __mixin__: {},
      mixins: {
        onCompiled: function(fn, pseudo){
          var mixin = pseudo.source && pseudo.source.__mixin__ || pseudo.source;
          if (mixin) switch (pseudo.value) {
            case null: case '': case 'before': return function(){
              mixin.apply(this, arguments);
              return fn.apply(this, arguments);
            };
            case 'after': return function(){
              var returns = fn.apply(this, arguments);
              mixin.apply(this, arguments);
              return returns;
            };
            case 'none': return fn;
          }
          else return fn;
        }
      },
      keypass: keypseudo,
      keyfail: keypseudo,
      delegate: {
        action: delegateAction
      },
      preventable: {
        action: function (pseudo, event) {
          return !event.defaultPrevented;
        }
      },
      duration: {
        onAdd: function(pseudo){
          pseudo.source.duration = Number(pseudo.value);
        }
      },
      capture: {
        onCompiled: function(fn, pseudo){
          if (pseudo.source) pseudo.source.capture = true;
        }
      }
    },

    /* UTILITIES */

    clone: clone,
    typeOf: typeOf,
    toArray: toArray,

    wrap: function (original, fn) {
      return function(){
        var output = original.apply(this, arguments);
        fn.apply(this, arguments);
        return output;
      };
    },
    /*
      Recursively merges one object with another. The first argument is the destination object,
      all other objects passed in as arguments are merged from right to left, conflicts are overwritten
    */
    merge: function(source, k, v){
      if (typeOf(k) == 'string') return mergeOne(source, k, v);
      for (var i = 1, l = arguments.length; i < l; i++){
        var object = arguments[i];
        for (var key in object) mergeOne(source, key, object[key]);
      }
      return source;
    },

    /*
      ----- This should be simplified! -----
      Generates a random ID string
    */
    uid: function(){
      return Math.random().toString(36).substr(2,10);
    },

    /* DOM */

    query: query,

    skipTransition: function(element, fn, bind){
      var prop = prefix.js + 'TransitionProperty';
      element.style[prop] = element.style.transitionProperty = 'none';
      var callback = fn ? fn.call(bind || element) : null;
      return xtag.skipFrame(function(){
        element.style[prop] = element.style.transitionProperty = '';
        if (callback) callback.call(bind || element);
      });
    },

    requestFrame: (function(){
      var raf = win.requestAnimationFrame ||
                win[prefix.lowercase + 'RequestAnimationFrame'] ||
                function(fn){ return win.setTimeout(fn, 20); };
      return function(fn){ return raf(fn); };
    })(),

    cancelFrame: (function(){
      var cancel = win.cancelAnimationFrame ||
                   win[prefix.lowercase + 'CancelAnimationFrame'] ||
                   win.clearTimeout;
      return function(id){ return cancel(id); };
    })(),

    skipFrame: function(fn){
      var id = xtag.requestFrame(function(){ id = xtag.requestFrame(fn); });
      return id;
    },

    matchSelector: function (element, selector) {
      return matchSelector.call(element, selector);
    },

    set: function (element, method, value) {
      element[method] = value;
      if (window.CustomElements) CustomElements.upgradeAll(element);
    },

    innerHTML: function(el, html){
      xtag.set(el, 'innerHTML', html);
    },

    hasClass: function (element, klass) {
      return element.className.split(' ').indexOf(klass.trim())>-1;
    },

    addClass: function (element, klass) {
      var list = element.className.trim().split(' ');
      klass.trim().split(' ').forEach(function (name) {
        if (!~list.indexOf(name)) list.push(name);
      });
      element.className = list.join(' ').trim();
      return element;
    },

    removeClass: function (element, klass) {
      var classes = klass.trim().split(' ');
      element.className = element.className.trim().split(' ').filter(function (name) {
        return name && !~classes.indexOf(name);
      }).join(' ');
      return element;
    },

    toggleClass: function (element, klass) {
      return xtag[xtag.hasClass(element, klass) ? 'removeClass' : 'addClass'].call(null, element, klass);
    },

    /*
      Runs a query on only the children of an element
    */
    queryChildren: function (element, selector) {
      var id = element.id,
          attr = '#' + (element.id = id || 'x_' + xtag.uid()) + ' > ',
          parent = element.parentNode || !container.appendChild(element);
      selector = attr + (selector + '').replace(regexReplaceCommas, ',' + attr);
      var result = element.parentNode.querySelectorAll(selector);
      if (!id) element.removeAttribute('id');
      if (!parent) container.removeChild(element);
      return toArray(result);
    },

    /*
      Creates a document fragment with the content passed in - content can be
      a string of HTML, an element, or an array/collection of elements
    */
    createFragment: function(content) {
      var template = document.createElement('template');
      if (content) {
        if (content.nodeName) toArray(arguments).forEach(function(e){
          template.content.appendChild(e);
        });
        else template.innerHTML = parseMultiline(content);
      }
      return document.importNode(template.content, true);
    },

    /*
      Removes an element from the DOM for more performant node manipulation. The element
      is placed back into the DOM at the place it was taken from.
    */
    manipulate: function(element, fn){
      var next = element.nextSibling,
          parent = element.parentNode,
          returned = fn.call(element) || element;
      if (next) parent.insertBefore(returned, next);
      else parent.appendChild(returned);
    },

    /* PSEUDOS */

    applyPseudos: function(key, fn, target, source) {
      var listener = fn,
          pseudos = {};
      if (key.match(':')) {
        var matches = [],
            valueFlag = 0;
        key.replace(regexPseudoParens, function(match){
          if (match == '(') return ++valueFlag == 1 ? '\u276A' : '(';
          return !--valueFlag ? '\u276B' : ')';
        }).replace(regexPseudoCapture, function(z, name, value, solo){
          matches.push([name || solo, value]);
        });
        var i = matches.length;
        while (i--) parsePseudo(function(){
          var name = matches[i][0],
              value = matches[i][1];
          if (!xtag.pseudos[name]) throw "pseudo not found: " + name + " " + value;
          value = (value === '' || typeof value == 'undefined') ? null : value;
          var pseudo = pseudos[i] = Object.create(xtag.pseudos[name]);
          pseudo.key = key;
          pseudo.name = name;
          pseudo.value = value;
          pseudo['arguments'] = (value || '').split(',');
          pseudo.action = pseudo.action || trueop;
          pseudo.source = source;
          pseudo.onAdd = pseudo.onAdd || noop;
          pseudo.onRemove = pseudo.onRemove || noop;
          var original = pseudo.listener = listener;
          listener = function(){
            var output = pseudo.action.apply(this, [pseudo].concat(toArray(arguments)));
            if (output === null || output === false) return output;
            output = pseudo.listener.apply(this, arguments);
            pseudo.listener = original;
            return output;
          };
          if (!target) pseudo.onAdd.call(fn, pseudo);
          else target.push(pseudo);
        });
      }
      for (var z in pseudos) {
        if (pseudos[z].onCompiled) listener = pseudos[z].onCompiled(listener, pseudos[z]) || listener;
      }
      return listener;
    },

    removePseudos: function(target, pseudos){
      pseudos.forEach(function(obj){
        obj.onRemove.call(target, obj);
      });
    },

  /*** Events ***/

    parseEvent: function(type, fn) {
      var pseudos = type.split(':'),
          key = pseudos.shift(),
          custom = xtag.customEvents[key],
          event = xtag.merge({
            type: key,
            stack: noop,
            condition: trueop,
            capture: xtag.captureEvents[key],
            attach: [],
            _attach: [],
            pseudos: '',
            _pseudos: [],
            onAdd: noop,
            onRemove: noop
          }, custom || {});
      event.attach = toArray(event.base || event.attach);
      event.chain = key + (event.pseudos.length ? ':' + event.pseudos : '') + (pseudos.length ? ':' + pseudos.join(':') : '');
      var stack = xtag.applyPseudos(event.chain, fn, event._pseudos, event);
      event.stack = function(e){
        e.currentTarget = e.currentTarget || this;
        var detail = e.detail || {};
        if (!detail.__stack__) return stack.apply(this, arguments);
        else if (detail.__stack__ == stack) {
          e.stopPropagation();
          e.cancelBubble = true;
          return stack.apply(this, arguments);
        }
      };
      event.listener = function(e){
        var args = toArray(arguments),
            output = event.condition.apply(this, args.concat([event]));
        if (!output) return output;
        // The second condition in this IF is to address the following Blink regression: https://code.google.com/p/chromium/issues/detail?id=367537
        // Remove this when affected browser builds with this regression fall below 5% marketshare
        if (e.type != key && (e.baseEvent && e.type != e.baseEvent.type)) {
          xtag.fireEvent(e.target, key, {
            baseEvent: e,
            detail: output !== true && (output.__stack__ = stack) ? output : { __stack__: stack }
          });
        }
        else return event.stack.apply(this, args);
      };
      event.attach.forEach(function(name) {
        event._attach.push(xtag.parseEvent(name, event.listener));
      });
      return event;
    },

    addEvent: function (element, type, fn, capture) {
      var event = typeof fn == 'function' ? xtag.parseEvent(type, fn) : fn;
      event._pseudos.forEach(function(obj){
        obj.onAdd.call(element, obj);
      });
      event._attach.forEach(function(obj) {
        xtag.addEvent(element, obj.type, obj);
      });
      event.onAdd.call(element, event, event.listener);
      element.addEventListener(event.type, event.stack, capture || event.capture);
      return event;
    },

    addEvents: function (element, obj) {
      var events = {};
      for (var z in obj) {
        events[z] = xtag.addEvent(element, z, obj[z]);
      }
      return events;
    },

    removeEvent: function (element, type, event) {
      event = event || type;
      event.onRemove.call(element, event, event.listener);
      xtag.removePseudos(element, event._pseudos);
      event._attach.forEach(function(obj) {
        xtag.removeEvent(element, obj);
      });
      element.removeEventListener(event.type, event.stack);
    },

    removeEvents: function(element, obj){
      for (var z in obj) xtag.removeEvent(element, obj[z]);
    },

    fireEvent: function(element, type, options){
      var event = doc.createEvent('CustomEvent');
      options = options || {};
      event.initCustomEvent(type,
        options.bubbles !== false,
        options.cancelable !== false,
        options.detail
      );
      if (options.baseEvent) inheritEvent(event, options.baseEvent);
      element.dispatchEvent(event);
    }

  };

  if (typeof define === 'function' && define.amd) define(xtag);
  else if (typeof module !== 'undefined' && module.exports) module.exports = xtag;
  else win.xtag = xtag;

  doc.addEventListener('WebComponentsReady', function(){
    xtag.fireEvent(doc.body, 'DOMComponentsLoaded');
  });

})();