/*! iFrame Resizer (iframeSizer.min.js ) - v4.0.4 - 2019-03-04
 *  Desc: Force cross domain iframes to size to content.
 *  Requires: iframeResizer.contentWindow.min.js to be loaded into the target frame.
 *  Copyright: (c) 2019 David J. Bradshaw - dave@bradshaw.net
 *  License: MIT
 */

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//# sourceMappingURL=iframeResizer.map
;
(function(){this.PagesFrame=function(){function t(e,i){this.frameId=e||"et4pages_iframe",this.url=i||t.FRAME_URL,this.width="100%",this.height="900",this.url.indexOf("/peoplecountwidget/")>-1&&(this.height=360),this.rm_cache_bust=1,this.rm_callback=null,this.timer=-1,this.scroll_element=null,this.iframe=null}return t.FRAME_URL="",t.prototype.setScrollElement=function(t){if(t&&""!==t)return this.scroll_element=document.getElementById(t)},t.prototype.setOnChange=function(t){if(window.onresize=window.onscroll=t,this.scroll_element)return this.scroll_element.onscroll=this.scroll_element.onresize=t},t.prototype.renderAt=function(e,i){return"string"==typeof e&&(e=document.getElementById(e)),"script"===e.tagName.toLowerCase()&&0===this.url.lastIndexOf("//",0)&&0===e.src.lastIndexOf("https://",0)&&(this.url="https:"+this.url),this.iframe=document.createElement("iframe"),this.iframe.id="et4pages_iframe",this.iframe.src=this.url,this.iframe.setAttribute("width",this.width),this.iframe.setAttribute("height",this.height),this.iframe.setAttribute("frameborder","0"),this.iframe.setAttribute("scrolling","no"),this.iframe.setAttribute("style","min-height: "+this.height+"px;"),this.iframe.setAttribute("allowfullscreen","allowfullscreen"),this.iframe.setAttribute("allow","geolocation; autoplay"),i&&this.iframe.setAttribute("name",i),this.iframe.onload=function(){return iFrameResize({log:!1,autoResize:!0,contentWindowBodyMargin:0,doHeight:!0,doWidth:!1,enablePublicMethods:!1,interval:33,scrolling:!1,callback:function(){var e;e=function(){var e;if(e=this.windowScrollTop()-this.offset().top+t.getEffectiveHeaderOffset()+"|"+(this.windowScrollTop()-this.offset().top+window.innerHeight),this.postMessage("scroll="+e,"*",this.iframe.contentWindow),Math.max(this.windowScrollTop(),this.bodyScrollTop())+window.innerHeight+t.getEffectiveFooterOffset()>=this.getDocumentHeight())return this.postMessage("addContent","*",this.iframe.contentWindow)},this.delayOnce(e,200)}},"#et4pages_iframe")},"script"===e.tagName.toLowerCase()?e.parentNode.insertBefore(this.iframe,e):e.appendChild(this.iframe)},t.prototype.isFunction=function(t){return t&&"[object Function]"==={}.toString.call(t)},t.prototype.postMessage=function(t,e,i){if(e)return i=i||parent,window.postMessage?i.postMessage(t,e.replace(/([^:]+:\/\/[^\/]+).*/,"$1")):i.location=e.replace(/#.*$/,"")+"#"+ +new Date+this.rm_cache_bust+++"&"+t},t.prototype.receiveMessage=function(t,e,i){var o,n;return window.postMessage?(t&&(this.rm_callback&&this.receiveMessage(),n=this.isFunction,this.rm_callback=function(i){return!("string"==typeof e&&i.origin!==e||n(e)&&!1===e(i.origin))&&t(i)}),window.addEventListener?window[t?"addEventListener":"removeEventListener"]("message",this.rm_callback,!1):window[t?"attachEvent":"detachEvent"]("onmessage",this.rm_callback)):(o&&clearInterval(o),o=null,t?(i="number"==typeof e?e:"number"==typeof i?i:100,setInterval(function(){var e,i,o;if(o=/^#?\d+&/,(e=document.location.hash)!==i&&o.test(e))return i=e,t({data:e.replace(o,"")})},i)):void 0)},t.prototype.offset=function(){var t,e,i,o;if(t={top:0,left:0},e=(o=document.getElementById(this.frameId))&&o.ownerDocument)return i=e.documentElement,"undefined"!=typeof o.getBoundingClientRect&&(t=o.getBoundingClientRect()),{top:t.top+(window.pageYOffset||i.scrollTop)-(i.clientTop||0),left:t.left+(window.pageXOffset||i.scrollLeft)-(i.clientLeft||0)}},t.prototype.windowScrollTop=function(t){return void 0!==t?(t<0&&(t=this.offset().top+t),window.scrollTo(window.pageXOffset||document.documentElement.scrollLeft,t)):window.pageYOffset||document.documentElement.scrollTop},t.prototype.bodyScrollTop=function(t){return void 0!==t?this.scroll_element?this.scroll_element.scrollTop=t:this.windowScrollTop(t):this.scroll_element?this.scroll_element.scrollTop:0},t.prototype.getDocumentHeight=function(){var t;return t=0,this.scroll_element&&(t=this.scroll_element.scrollHeight),Math.max(t,document.body.scrollHeight,document.documentElement.scrollHeight,document.body.offsetHeight,document.documentElement.offsetHeight,document.body.clientHeight,document.documentElement.clientHeight)},t.prototype.setHeight=function(t){return this.height=t,this.iframe.setAttribute("height",t),this.iframe.style.height=t+"px"},t.prototype.delayOnce=function(t,e){return-1!==this.timer&&clearTimeout(this.timer),this.timer=setTimeout(t,e)},t}()}).call(this);
PagesFrame.FRAME_URL = 'https://pages.et4.de/de/open-data-niedersachsen-tourismus/default/search/Event/keyword:%22NLPH%20Baltrum%22/mode:next_months,12/sort:chronological';
PagesFrame.getEffectiveHeaderOffset = function() { return (window.innerWidth < 768 && 0 != 0) ? 0 : 80; };
PagesFrame.getEffectiveFooterOffset = function() { return (window.innerWidth < 768 && 0 != 0) ? 0 : 460; };

(function(){
  if (PagesFrame.FRAME_URL.indexOf('/streaming/') != -1) {
    if (window.console) console.error("eT4 PAGES: iframe src=*/streaming/* detected: don't do that, the src must refer to /default/ or another non-streaming template");
  }

  if (location.hash.indexOf("/default/") != -1)
  {
    var urlParts = PagesFrame.FRAME_URL.split("/");
    PagesFrame.FRAME_URL = urlParts[0] + "//" + urlParts[2] + location.hash.replace('#', '');
  }
  if (location.hash.indexOf('/streaming/') != -1) {
    if (window.console) console.error("eT4 PAGES: #*/streaming/* detected: don't do that, the relative url in the fragment must use /default/");
  }
})();
(function() {
  var sf = function() {
    if (pagesIframe == null)
      return;
    try {
      var scrollTop = pagesIframe.windowScrollTop() - pagesIframe.offset().top + PagesFrame.getEffectiveHeaderOffset();
      var scrollBottom = pagesIframe.windowScrollTop() - pagesIframe.offset().top + window.innerHeight;
      var scroll = scrollTop + "|" + scrollBottom;
      pagesIframe.postMessage("scroll=" + scroll, "*", document.getElementById("et4pages_iframe").contentWindow);
      if(Math.max(pagesIframe.windowScrollTop(), pagesIframe.bodyScrollTop()) + window.innerHeight + PagesFrame.getEffectiveFooterOffset() >= pagesIframe.getDocumentHeight())
        pagesIframe.postMessage('addContent', "*", document.getElementById("et4pages_iframe").contentWindow)
     } catch(e) {
     }
  }; 
  try {
    var pagesIframe = new PagesFrame("et4pages_iframe");
    pagesIframe.setScrollElement("");
    if (0 > 0) pagesIframe.height = 0;
    if(window.name && window.name.indexOf('|') != -1)
      pagesIframe.renderAt("et4pages", window.name);
    else
      pagesIframe.renderAt("et4pages");
    var hist_timer = -1;
    pagesIframe.setOnChange(function() { pagesIframe.delayOnce(sf, 200); });
    /* now @ et4-pages-iframe.js.coffee
    iFrameResize({
        log: false,
        autoResize: true,
        contentWindowBodyMargin:0,
        doHeight:true,
        doWidth:false,
        enablePublicMethods:false,
        interval:33,
        scrolling:false,
        callback:function(messageData){ pagesIframe.delayOnce(sf, 200); }
      },
      "#et4pages_iframe"
    );
    */
    // tfs#6460 real bad safari hack for history back
    // HMDEV-I7185 iOS 14.x changed something so this hack causes crashes. but they didnt fix the history back bug
    if (navigator.userAgent.indexOf('Safari') != -1 && navigator.userAgent.indexOf('Chrome') == -1 && navigator.userAgent.indexOf('Android') == -1) {
      window.addEventListener('popstate', function(e) {
        // HMDEV-I7185 alternative workaround
        if (location.hash.indexOf("/default/") != -1) {
          var urlParts = PagesFrame.FRAME_URL.split("/");
          var newUrl = urlParts[0] + "//" + urlParts[2] + location.hash.replace('#', '');
          pagesIframe.iframe.src = newUrl;
        }
        //window.location.href = location.href;
      });
    }
    setInterval(function() {
      pagesIframe.delayOnce(sf, 200);
    }, 3000);
    pagesIframe.receiveMessage(function(e) {
      var matchUpdateScrollInfo = e.data.match("^updateScrollInfo=(.*)");
      var matchScroll = e.data.match("^scroll=(.*)");
      var matchHistory = e.data.match("^history=(.*)");
      // trigger custom event even if i_update_url=false
      if (matchHistory) {
        pagesIframe.iframe.dispatchEvent(new CustomEvent('pages:load', {detail: {url: matchHistory[1]}}));
      }
      if (true && matchHistory && matchHistory.length == 2) {
        var url = matchHistory[1];
        var urlParts = url.split("/");
        var urlOrigin = urlParts[0] + "//" + urlParts[2];
        var origin = window.location.origin
        if (!origin)
          origin = window.location.protocol + "//" + window.location.hostname + (window.location.port ? ':' + window.location.port: '');
        var mLocationStreaming = window.location.href.match(/\/streaming(_[A-Za-z-0-9]*)?(|_?([A-Za-z-0-9]*))?\//)
        var templateInner = (mLocationStreaming ? mLocationStreaming[3] : null) || 'default'
        if (History.enabled && url.indexOf(origin) == 0 && url.indexOf("/"+templateInner+"/") != -1 && mLocationStreaming) {
          var newUrl = url.replace("/"+templateInner+"/", mLocationStreaming[0])
          if (newUrl != History.getState().url) {
            if (hist_timer != -1)
              clearTimeout(hist_timer);
            hist_timer = setTimeout(function() {
              History.replaceState(null, document.title, newUrl);
            }, 50);
          }
        } else {
          var newHash = url.replace(urlOrigin, "#");
          var trueBaseLocation = location.protocol+'//'+location.hostname+(location.port?":"+location.port:"")+location.pathname+(location.search?location.search:""); //stop using base href -_-
          if(window.location.hash != newHash) {
            if (window.history && window.history.replaceState)
              history.replaceState(null, document.title, trueBaseLocation + newHash);
            else
              window.location.hash = newHash;
          }
        }
      }
      else if (matchUpdateScrollInfo && matchUpdateScrollInfo.length == 2) {
        var params = matchUpdateScrollInfo[1].split("|");
        var scroll = pagesIframe.windowScrollTop();
        var height = parseInt(params[1]);
        var offset = parseInt(params[2]);
        var limit = parseInt(params[3]);
        var baseLimit = parseInt(params[4]);
        var urlHash = parseInt(params[5]);
        window.name = scroll + "|" + height + "|" + offset + "|" + limit + "|" + baseLimit + "|" + urlHash;
      } else if (matchScroll && matchScroll.length == 2) {
        var params = matchScroll[1].split('|')
        if (params[1] === 'original') params[1] = pagesIframe.height;
        pagesIframe.setHeight(params[1]);
        pagesIframe.windowScrollTop(params[0]);
      } else {
        switch(e.data) {
          case "scrollToTop":
            var scrollOffsetToUse = 0;
            if (window.innerWidth < 768 && 0 != 0) scrollOffsetToUse = 0;
            pagesIframe.bodyScrollTop(scrollOffsetToUse);
            break;
          case "refresh":
            pagesIframe.delayOnce(sf, 200);
            break;
          case "register":
            pagesIframe.postMessage("init=" + window.name, "*", document.getElementById("et4pages_iframe").contentWindow);
            break;
        }
      }
    });
  } catch(e) {
  }
})();