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/*
 *
 *  * Copyright 2015 Skymind,Inc.
 *  *
 *  *    Licensed under the Apache License, Version 2.0 (the "License");
 *  *    you may not use this file except in compliance with the License.
 *  *    You may obtain a copy of the License at
 *  *
 *  *        http://www.apache.org/licenses/LICENSE-2.0
 *  *
 *  *    Unless required by applicable law or agreed to in writing, software
 *  *    distributed under the License is distributed on an "AS IS" BASIS,
 *  *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  *    See the License for the specific language governing permissions and
 *  *    limitations under the License.
 *
 */

//
// Generated on Tue Dec 16 2014 12:13:47 GMT+0100 (CET) by Charlie Robbins, Paolo Fragomeni & the Contributors (Using Codesurgeon).
// Version 1.2.6
//

(function (exports) {

/*
 * browser.js: Browser specific functionality for director.
 *
 * (C) 2011, Charlie Robbins, Paolo Fragomeni, & the Contributors.
 * MIT LICENSE
 *
 */

var dloc = document.location;

function dlocHashEmpty() {
  // Non-IE browsers return '' when the address bar shows '#'; Director's logic
  // assumes both mean empty.
  return dloc.hash === '' || dloc.hash === '#';
}

var listener = {
  mode: 'modern',
  hash: dloc.hash,
  history: false,

  check: function () {
    var h = dloc.hash;
    if (h != this.hash) {
      this.hash = h;
      this.onHashChanged();
    }
  },

  fire: function () {
    if (this.mode === 'modern') {
      this.history === true ? window.onpopstate() : window.onhashchange();
    }
    else {
      this.onHashChanged();
    }
  },

  init: function (fn, history) {
    var self = this;
    this.history = history;

    if (!Router.listeners) {
      Router.listeners = [];
    }

    function onchange(onChangeEvent) {
      for (var i = 0, l = Router.listeners.length; i < l; i++) {
        Router.listeners[i](onChangeEvent);
      }
    }

    //note IE8 is being counted as 'modern' because it has the hashchange event
    if ('onhashchange' in window && (document.documentMode === undefined
      || document.documentMode > 7)) {
      // At least for now HTML5 history is available for 'modern' browsers only
      if (this.history === true) {
        // There is an old bug in Chrome that causes onpopstate to fire even
        // upon initial page load. Since the handler is run manually in init(),
        // this would cause Chrome to run it twise. Currently the only
        // workaround seems to be to set the handler after the initial page load
        // http://code.google.com/p/chromium/issues/detail?id=63040
        setTimeout(function() {
          window.onpopstate = onchange;
        }, 500);
      }
      else {
        window.onhashchange = onchange;
      }
      this.mode = 'modern';
    }
    else {
      //
      // IE support, based on a concept by Erik Arvidson ...
      //
      var frame = document.createElement('iframe');
      frame.id = 'state-frame';
      frame.style.display = 'none';
      document.body.appendChild(frame);
      this.writeFrame('');

      if ('onpropertychange' in document && 'attachEvent' in document) {
        document.attachEvent('onpropertychange', function () {
          if (event.propertyName === 'location') {
            self.check();
          }
        });
      }

      window.setInterval(function () { self.check(); }, 50);

      this.onHashChanged = onchange;
      this.mode = 'legacy';
    }

    Router.listeners.push(fn);

    return this.mode;
  },

  destroy: function (fn) {
    if (!Router || !Router.listeners) {
      return;
    }

    var listeners = Router.listeners;

    for (var i = listeners.length - 1; i >= 0; i--) {
      if (listeners[i] === fn) {
        listeners.splice(i, 1);
      }
    }
  },

  setHash: function (s) {
    // Mozilla always adds an entry to the history
    if (this.mode === 'legacy') {
      this.writeFrame(s);
    }

    if (this.history === true) {
      window.history.pushState({}, document.title, s);
      // Fire an onpopstate event manually since pushing does not obviously
      // trigger the pop event.
      this.fire();
    } else {
      dloc.hash = (s[0] === '/') ? s : '/' + s;
    }
    return this;
  },

  writeFrame: function (s) {
    // IE support...
    var f = document.getElementById('state-frame');
    var d = f.contentDocument || f.contentWindow.document;
    d.open();
    d.write("