function AppVorlage() {
  var self = this;
  this.appMenu;
  //this.vorlagen;
  this.api;
  this.userid;
  this.pfad = '';
  this.loc;
  this.modus = 'kacheln';
  this.cm;
  //this.tinymce;
  this.ed;
  this.tmo;
  this.tmo2;
  this.PERS_DIR = "Persoenlich";
  this.PUB_DIR = "Oeffentlich";
  this.DAV_DIR = "Austausch";
  this.BASE_DIR = "$basis";
  this.DATA_DIR = "$daten";
  this.WWW_DIR = "www";
  this.openEditor;
  this.openFileName;
  this.cutCopyOperation;
  this.cutCopySrcDir;
  this.cutCopyFiles;
  this.fm_slideshow = false;
  this.dateien;
  this.cache = {}; // mustache template cache

  this.datei_neuer_text = function () {
    //self.meldung_mit_timeout("Neuer Text", 1500);
    self.fm_text_edit('Neue Datei');
  };
  
  /* Funktionen aus App-Vorlage */

  this.init = function () {    
    document.querySelector(".codeeditor-space").style.display = "none";
    document.querySelector("#mce-editor").style.display = "none";
    self.appMenu = new AppMenu();
    self.appMenu.init(
            "data/menu/",
            "hauptmenue.json",
            "data/tpl/app-menu.tpl",
            ".west",
            "8em");
    document.querySelector('.hamburger').addEventListener('click', function (e) {
      self.menue_umschalten();
    });
    document.querySelector('#top-neuer-text-btn').addEventListener('click', self.datei_neuer_text);
    document.querySelector('#top-neuer-ordner-btn').addEventListener('click', self.datei_neuer_ordner);
    document.querySelector('#top-close-btn').addEventListener('click', self.fm_menu_datei_schliessen);
    self.fm_get_login();
    
    var parsedUrl = new URL(window.location.href);
    var wunschPfad = parsedUrl.searchParams.get("pfad");

    if(wunschPfad !== null && wunschPfad.length > 0) {
      self.pfad = wunschPfad;
      self.fm_get_list(wunschPfad);
    } else {
      self.fm_get_list('');
    }
    
    self.seitenleiste_umschalten();
    self.fm_init_uploader();
    self.loc = window.location.protocol + '//' + window.location.host;
  };
  
  /* ----- Uploader Anfang ----------*/

  this.fm_init_uploader = function() {
    //console.log('init_uploader');
    self.dateien = new Array();
    var dropzone = document.getElementById("upload-target");  
    dropzone.ondragover = dropzone.ondragenter = function(event) {  
      event.stopPropagation();  
      event.preventDefault();  
    };

    dropzone.ondrop = function(event) {  
      //console.log('dateien ondrop');
      event.stopPropagation();  
      event.preventDefault();  
      var fileList = event.dataTransfer.files;  
      for (var i=0; i<fileList.length; i++) {  
        self.dateien.push(fileList[i]);
        //console.log('upload ' + fileList[i]);
      }
      self.sendFile(self.dateien.pop());
    };
  };

  /* ----- Uploader Ende --------------- */  

  this.login_zeigen = function() {
    self.meldung_mit_timeout("Benutzer: " + self.userid, 1500);
  };
  
  this.fm_neuer_reiter = function() {
    window.open('/file-cms/ui2/?pfad=' + self.pfad, '_blank');
  };
  
  this.fm_hilfe = function() {
    window.open('/data/dok/wbx/bedienung.html#wbx-bedienung', '_blank');
  };
  
  this.fm_toggle_show_slideshow = function() {
    if(self.fm_slideshow) {
      //$('#m-toggle-slideshow').text('Diashow einschalten');
      self.fm_slideshow = false;
    } else {
      //$('#m-toggle-slideshow').text('Diashow ausschalten');
      self.fm_slideshow = true;
    }
  };
  
  this.fm_view_slideshow = function() {

    // https://localhost:8443/file-cms/fotos/?o=ulrich/bilder/diashow/ordnername


    var userid = self.userid; // $('#userMenu').text();
    //var gewaehlte = $('.datei-gewaehlt');
    //var gewaehlte = document.querySelector('.datei-gewaehlt');
    //var fname = gewaehlte.textContent;

    var path = self.fm_get_path(userid);
    var restdir = path;
    if(path.indexOf('/data/') > -1) {
      restdir = path.substr('/data/'.length);
    }

    //window.open('/file-cms/fotos/?o=' + userid + '/' + path + '/' + fname, '_blank');
    window.open('/file-cms/fotos/?o=' + restdir + '/' /*+ fname*/, '_blank');
  };

  this.fm_menu_datei_entpacken = function() {
    //var gewaehlte = $('.datei-gewaehlt');
    //var fname = $(gewaehlte[0]).text();
    var gewaehlte = document.querySelector('.datei-gewaehlt');
    var fname = gewaehlte.textContent;
    self.fm_unzip_file(fname);
  };

  this.menue_umschalten = function () {
    var ham = document.querySelector(".hamburger");
    ham.classList.toggle("is-active"); // hamburger-icon umschalten
    self.appMenu.toggle(); // menue oeffnen/schliessen
  };

  this.info_dialog_zeigen = function () {
    self.dialog_laden_und_zeigen('data/tpl/dlg-info.tpl', '');
    //self.menue_umschalten();
  };

  this.seitenleiste_umschalten = function () {
    var ostDiv = document.querySelector('.ost');
    if (ostDiv.classList.contains('ost-open')) {
      ostDiv.classList.remove('ost-open');
      ostDiv.style.flexBasis = '0em';
    } else {
      ostDiv.classList.add('ost-open');
      ostDiv.style.flexBasis = '6em';
    }
    //self.menue_umschalten();
  };

  this.fusszeile_umschalten = function () {
    var suedDiv = document.querySelector('.sued');
    if (suedDiv.classList.contains('sued-open')) {
      suedDiv.classList.remove('sued-open');
      suedDiv.style.height = '0';
    } else {
      suedDiv.classList.add('sued-open');
      suedDiv.style.height = '1.5em';
    }
    self.menue_umschalten();
  };

  this.fm_fusszeile_zeigen = function() {
    var suedDiv = document.querySelector('.sued');
    suedDiv.classList.add('sued-open');
    suedDiv.style.height = '7em';
    //$('.sued').show();
  };


  this.meldung_mit_timeout = function (meldung, timeout) {
    var s = document.querySelector('.sued');
    s.textContent = meldung;
    s.classList.add('sued-open');
    s.style.height = '1.5em';
    setTimeout(function () {
      s.textContent = 'Bereit.';
      setTimeout(function () {
        var suedDiv = document.querySelector('.sued');
        if (suedDiv.classList.contains('sued-open')) {
          suedDiv.classList.remove('sued-open');
          suedDiv.style.height = '0';
        }
      }, 500);
    }, timeout);
  };
  
  this.fm_menu_datei_schliessen = function() {
    if(self.openEditor === 'text') {
      if(!self.cm.getDoc().isClean()) {
        self.fm_ask_for_save();
      } else {
        self.fm_do_close();
      }
    } else {
      if(tinymce.activeEditor.undoManager.hasUndo()) {
        self.fm_ask_for_save();
      } else {
        self.fm_do_close();
      }
    }
  };  

  this.fm_ask_for_save = function() {
    self.dialog_laden_und_zeigen('data/tpl/dlg-ask-save.tpl', '', function() {
      // wenn dialog da ist, hier events verknuepfen
      document.querySelector('#cancel-btn').addEventListener('click', function() {
        self.fm_do_close();
        self.dialog_schliessen();
      });
      document.querySelector('#speichern-btn').addEventListener('click', function() {
        self.fm_menu_datei_speichern(function() {
          self.fm_do_close();
          self.dialog_schliessen();
        });
      });
    });
  };

  this.fm_menu_datei_speichern = function(callback) {
    //var fname = $('.datei-gewaehlt').text();
    var fname = self.openFileName;
    if(fname !== undefined && fname !== '') {
      self.fm_save_file(fname, 'saveTextFile', callback);
      self.meldung_mit_timeout(fname + ' gespeichert.', 1500);
    } else {
      self.fm_menu_datei_speichern_unter(callback);
    }
  };
  
  this.fm_menu_datei_speichern_unter = function(callback) {  
    self.dialog_laden_und_zeigen('data/tpl/dlg-save-as.tpl', '', function() {
      document.querySelector('#cancel-btn').addEventListener('click', function() {
        //self.fm_do_close();
        self.dialog_schliessen();
      });
      document.querySelector('#speichern-btn').addEventListener('click', function() {
        //self.fm_menu_datei_speichern(function() {
          //console.log(document.querySelector('#datei-name-in').value);
          var fname = document.querySelector('#datei-name-in').value;
          self.fm_save_file(fname, 'saveTextFileAs', callback);
          self.meldung_mit_timeout(fname + ' gespeichert.', 1500);
          if(typeof(callback) !== 'function') {
            //self.fm_do_close();
            self.dialog_schliessen();
          }
        //});
      });
    });    
  };
  
  this.fm_menu_neues_dokument = function() {
    self.fm_dok_edit('');
  };

  /* Dialog-Funktionen */

  /*
   Einen Dialog aus Vorlagen erzeugen
   
   vurl - URL zur Dialogvorlage
   msgTpl - URL mit einer Vorlage eines Mitteilungstextes (optional)
   */
  this.dialog_laden_und_zeigen = function (vurl, msgTpl, cb) {
    var vorlage = self.cache[vurl];
    if(vorlage === undefined) {
      self.fm_get(vurl, "text", function(antwort) {
        self.cache[vurl] = antwort;
        self.dialog_zeigen(vurl, antwort, cb);
        //self.vorlage_fuellen(vurl, inhalt, cb);
      });
    } else {
      self.dialog_zeigen(vurl, vorlage, cb);
    }
  };

  this.dialog_zeigen = function (vurl, inhalt, cb) {
    var dlg = document.querySelector(".dialog");
    self.html_erzeugen(
            vurl,
            inhalt,
            function (html) {
              //dlg.html(html);
              dlg.style.height = '7em';
              dlg.innerHTML = html;
              document.querySelector('.close-btn').addEventListener('click', self.dialog_schliessen);
              //dlg.slideDown(300);
              if(typeof(cb) !== 'function') {
                // ..
              } else {
                cb();
              }
            });
  };

  this.dialog_schliessen = function () {
    document.querySelector('.close-btn').removeEventListener('click', self.dialog_schliessen);
    //$('.dialog').slideUp(300);
    var dlg = document.querySelector('.dialog');
    //dlg.style.display = "none";
    dlg.style.height = '0';
    dlg.innerHTML = '';
    self.removeAllListeners('#cancel-btn');
    self.removeAllListeners('#speichern-btn');
  };
  
  this.fm_auswahl_marke_entfernen = function() {
    var gew = document.querySelector('.datei-gewaehlt');
    if(gew !== null) {
      gew.classList.remove('datei-gewaehlt');
    }        
  };
  
  this.fm_view_file = function() {
    var fname = document.querySelector('.datei-gewaehlt').textContent;
    var path = self.fm_get_path(self.userid);
    window.open(path + '/' + fname, '_blank');
  };

  this.datei_ansehen_oder_bearbeiten = function(dateiname) {
    if(dateiname.endsWith('htmi')) {
      self.fm_get_file_content('doc', dateiname);
    } else if(dateiname.endsWith('jpg') || dateiname.endsWith('png') || 
            dateiname.endsWith('gif') || dateiname.endsWith('pdf') ) {
      self.fm_view_file();
    } else {
      self.fm_get_file_content('text', dateiname);      
    }
  };
  
  /**
   * Hier werden die folgenden Faelle einer Datei- 
   * bzw. Ordnerauswahl ausgefuehrt:
   * 
   * geklickt, nicht gewaehlt: 
   *    auswaehlen, evtl. bestehende andere Auswahl entfernen
   *    
   * geklickt, ausgewaehlt: 
   *    Datei ansehen oder oeffnen bzw. Ordner oeffnen
   *    
   * geklickt mit [Strg], nicht gewahlt: 
   *    auswaehlen, bestehende Auswahl beibehalten (Mehrfachauswahl)
   *    
   * geklickt mit [Strg], gewaehlt: 
   *    Auswahl bei diesem Element entfernen
   * 
   * Diese Fälle sind unterteilt in 
   *    1. Kachel-Modus
   *    2. Listenmodus
   * 
   * @param {type} ev Klick-Event
   * @returns {undefined} nichts 
   */
  this.fm_dateiwahl = function(ev) {
    var elem = ev.target;
    if(self.modus == 'kacheln') {
      // Kacheln
      //var par = elem.parentElement;
      var par = elem.closest('.datei-figure');
      var dElem = par.querySelector('.dateiname');
      if(elem.classList.contains("icon-folder")) {
        // Ordner
        //var par = elem.parentElement;
        var istGewaehlt = dElem.classList.contains('datei-gewaehlt');
        if(istGewaehlt) {
          if(/*ev.shiftKey || */ ev.ctrlKey) {
            // mehrere Ordner sind gewaehlt, diese eine wieder entfernen
            dElem.classList.remove('datei-gewaehlt');
          } else {
            // Ordner oeffnen
            var ordner = dElem.textContent.trim();
            if(self.pfad.length > 0) {
              self.pfad = self.pfad + '/' + ordner;
            } else {
              self.pfad = ordner;
            }
            self.fm_get_list(self.pfad);
          }
        } else {
          // Ordner auswaehlen
          if(/*ev.shiftKey || */ ev.ctrlKey) {
            // Mehrfachauswahl
          } else {
            self.fm_auswahl_marke_entfernen();
          }
          dElem.classList.add('datei-gewaehlt');
        }
      } else if(elem.classList.contains('datei')) {
        // Datei
        //var par = elem.parentElement;
        //var dElem = par.querySelector('.dateiname');
        var istGewaehlt = dElem.classList.contains('datei-gewaehlt');
        if(istGewaehlt) {
          if(/*ev.shiftKey || */ ev.ctrlKey) {
            // mehrere Dateien sind gewaehlt, diese eine wieder entfernen
            dElem.classList.remove('datei-gewaehlt');
          } else {
            // Datei zum Bearbeiten oeffnen
            self.datei_ansehen_oder_bearbeiten(dElem.textContent);
          }
        } else {
          if(/*ev.shiftKey || */ ev.ctrlKey) {
            // mehrere Dateien sollen gewaehlt werden
          } else {
            self.fm_auswahl_marke_entfernen();
          }
          dElem.classList.add('datei-gewaehlt');
        }
      } else {
        //console.log('kein folder oder file...');
      }
    } else {
      // Liste
      var pElem = elem.closest('.datei-zeile');
      var dElem = pElem.querySelector('.datei-elem');
      var dnElem = pElem.querySelector('.dateiname');
      var istGewaehlt = dnElem.classList.contains('datei-gewaehlt');
      if(dElem.getElementsByTagName("i")[0].classList.contains('icon-doc-text-inv')) {
        // Datei
        if(istGewaehlt) {
          if(/*ev.shiftKey || */ ev.ctrlKey) {
            // mehrere Dateien sind gewaehlt, diese eine wieder entfernen
            dnElem.classList.remove('datei-gewaehlt');
          } else {
            // gewaehlte Datei ohne [Strg] geklickt: ansehen oder oeffnen
            self.datei_ansehen_oder_bearbeiten(dnElem.textContent);
          }
        } else {
          if(/*ev.shiftKey || */ ev.ctrlKey) {
            // mehrere Dateien sollen gewaehlt werden, Auswahl ist weiter unten
          } else {
            var ti = document.querySelector('.table-info');
            if(ti !== null) {
              ti.classList.remove('table-info');
            }
            self.fm_auswahl_marke_entfernen();
          }
          pElem.classList.add('table-info');
          dnElem.classList.add('datei-gewaehlt');
        }
      } else {
        // Ordner
        if(istGewaehlt) {
          if(/*ev.shiftKey || */ ev.ctrlKey) {
            // ein gewaehlter Ordner ist mit [Strg] geklickt, Auswahl entfernen
            dnElem.classList.remove('datei-gewaehlt');
          } else {
            // Ordner oeffnen
            var ordner = dnElem.textContent;
            if(self.pfad.length > 0) {
              self.pfad = self.pfad + '/' + ordner;
            } else {
              self.pfad = ordner;
            }
            self.fm_get_list(self.pfad);
          }
        } else {
          if(/*ev.shiftKey || */ ev.ctrlKey) {
            // nicht gewaehlter Ordner und [Strg]: zu Mehrfachauswahl hinzufuegen
          } else {
            // nicht gewaehlter Ordner ohne [Strg]: andere Auswhalen entfernen und weiter unten Ordner auswaehlen
            self.fm_auswahl_marke_entfernen();
          }
          dnElem.classList.add('datei-gewaehlt');
        }
      }   
    }
  };
 
  
  this.fm_render_list = function (fl) {
    if (self.modus === 'kacheln') {
      // Kachelansicht
      self.html_erzeugen("data/tpl/kacheln.tpl", fl, function(html) {
        var elem = document.querySelector('#dateien');
        elem.innerHTML = html;
        self.addEvtListener('.figure', 'click', self.fm_dateiwahl);
      });
    } else {
      // Listenansicht
      self.html_erzeugen("data/tpl/liste.tpl", fl, function(html) {
        var elem = document.querySelector('#dateien');
        elem.innerHTML = html;
        self.addEvtListener('.datei-zeile', 'click', self.fm_dateiwahl);
      });
    }
  };
  
  this.fm_get_path = function (uid) {
    var restdir;
    if (self.pfad.indexOf(self.PUB_DIR) > -1) {
      restdir = self.pfad.substr(self.PUB_DIR.length);
    } else if (self.pfad.indexOf(self.PERS_DIR) > -1) {
      restdir = self.pfad.substr(self.PERS_DIR.length);
    } else if (self.pfad.indexOf(self.BASE_DIR) > -1) {
      restdir = self.pfad.substr(self.BASE_DIR.length);
    } else if (self.pfad.indexOf(self.DATA_DIR) > -1) {
      restdir = self.pfad.substr(self.DATA_DIR.length);
    } else if (self.pfad.indexOf(self.DAV_DIR) > -1) {
      restdir = self.pfad.substr(self.DAV_DIR.length);
    }
    if (restdir !== undefined && restdir.startsWith('/')) {
      restdir = restdir.substr(1);
      if (restdir.indexOf(self.WWW_DIR) > -1) {
        restdir = restdir.replace(self.WWW_DIR, 'data');
      }
    }
    var pdir = self.fm_get_base(uid);
    if (restdir.length > 1) {
      return pdir + "/" + restdir;
    } else {
      return pdir;
    }
  };

  this.fm_get_base = function (uid) {
    var pdir;
    if (self.pfad.indexOf(self.PUB_DIR) > -1) {
      pdir = '/data/' + uid;
    } else if (self.pfad.indexOf(self.PERS_DIR) > -1) {
      pdir = '/home/' + uid;
    } else if (self.pfad.indexOf(self.BASE_DIR) > -1) {
      pdir = '';
    } else if (self.pfad.indexOf(self.DATA_DIR) > -1) {
      pdir = '';
    }
    return pdir;
  };
  
  /**
   * Aus einem relativen Pfad ein Array aus BcrFile Objekten 
   * machen
   * 
   * @param {String} relPfad  der relative Pfad
   * @returns {Array}  die BcrFile-Objekte zum Pfad als Array
   */
  this.fm_buildBreadcrumb = function(relPfad) {
    var rp = '';
    var dirList = new Array();
    dirList.push(new BcrFile(rp, 'Home'));
    if(relPfad.length > 1) {
      var dirs = relPfad.split('/');
      for(var i = 0; i < dirs.length; i++) {
        if(rp.length > 0 ) {
          // weitere Einträge
          dirList.push(new BcrFile(rp + '/' + dirs[i], dirs[i]));
          rp = rp + '/' + dirs[i];
        } else {
          // erster Eintrag
          dirList.push(new BcrFile(dirs[i], dirs[i]));
          rp = dirs[i];
        }
      }
    }
    return dirList;
  };
  
  /*
   * icon-th-large
   * icon-th-list
   * @returns {undefined}
   */
  this.fm_ansicht_umschalten = function() {
    var elem = document.querySelector('#ansicht');
    var iElem = elem.getElementsByTagName("i")[0];
    if(iElem.classList.contains('icon-th-list')) {
      iElem.classList.add('icon-th-large');
      iElem.classList.remove('icon-th-list');
      self.modus = 'liste';
    } else {
      iElem.classList.add('icon-th-list');
      iElem.classList.remove('icon-th-large');
      self.modus = 'kacheln';
    }
    self.fm_get_list(self.pfad);    
  };

  this.fm_set_modus = function() {
    var elem = document.querySelector('#ansicht');
    var iElem = elem.getElementsByTagName("i")[0];
    if(self.modus === 'kacheln') {
      iElem.classList.add('icon-th-list');    
      iElem.classList.remove('icon-th-large');
    } else {
      iElem.classList.add('icon-th-large');
      iElem.classList.remove('icon-th-list');
    }    
  };

  
  /**
   * Der letzte Eintrag in dirs ist der aktuelle Ordner und 
   * deshalb ausgegraut.
   * 
   * Wenn nur ein Ordner in dirs enthalten ist, dann sind wir 
   * an der obersten Ebene (Home).
   * 
   * @param {Array} dirList ein Array aus BcrFile-Objekten
   * @returns nichts 
   */
  this.fm_renderBreadcrumb = function(dirList) {
    var elem = document.querySelector('.breadcrumb');
    if(dirList.length > 1) {
      var last = dirList.pop();
      var bcList = new BcrFiles(dirList);
      
      self.html_erzeugen("data/tpl/bcr.tpl", bcList, function(html) {
        var htmlGesamt = html;
        self.html_erzeugen("data/tpl/bcr2.tpl", last, function(html) {
          htmlGesamt += html;          
          self.html_erzeugen("data/tpl/bcr3.tpl", dirList[0], function(html) {
            htmlGesamt += html;
            elem.innerHTML = htmlGesamt;
            self.addEvtListener('.bc-link', 'click', self.fm_bc_click);
            self.addEvtListener('#ansicht', 'click', self.fm_ansicht_umschalten);
            self.fm_set_modus();
          });
          
        });                  
      });            
    } else {
      // oberste Ebene
      var htmla;
      var htmlb;
      self.html_erzeugen("data/tpl/bcr2.tpl", dirList[0], function(html) {
        htmla = html;        
        self.html_erzeugen("data/tpl/bcr3.tpl", dirList[0], function(html) {
          htmlb = html;
          elem.innerHTML = htmla + htmlb;
          self.addEvtListener('.bc-link', 'click', self.fm_bc_click);
          self.addEvtListener('#ansicht', 'click', self.fm_ansicht_umschalten);
          self.fm_set_modus();
        });
      });            
    }
  };
  
  /**
   * Auf den Klick auf ein Breadcrumb-Element reagieren:
   * Den Ordner-Inhalt des geklickten Elements anzeigen
   * @returns nichts
   */
  this.fm_bc_click = function() {
    var elem = this;
    var bcPfad = elem.getAttribute("rpath");
    if(bcPfad !== undefined) {
      self.pfad = bcPfad;
      self.fm_get_list(bcPfad);
    } else {
      pfad = '';
      self.fm_get_list('');
    }
  };

  /* ------- Dateifunktionen Start ----------- */

  this.fm_menu_cut = function() {
    console.log('fm_menu_cut');
    self.fm_cut_files();
  };
  this.fm_menu_copy = function() {
    //console.log('fm_menu_kopie');
    self.fm_copy_files();
  };
  this.fm_menu_paste = function() {
    console.log('fm_menu_paste');
    self.fm_paste_files();
  };
  this.fm_menu_delete = function() {
    self.dialog_laden_und_zeigen('data/tpl/dlg-ask-del.tpl', '', function() {
      // wenn dialog da ist, hier events verknuepfen
      document.querySelector('#cancel-btn').addEventListener('click', function() {
        //self.fm_do_close();
        self.dialog_schliessen();
      });
      document.querySelector('#speichern-btn').addEventListener('click', function() {
        //self.fm_menu_datei_speichern(function() {
          self.fm_del_files();
          self.dialog_schliessen();
        //});
      });
    });
  };
  
  /*
   * Hier merkt sich die Dateiverwalting die markierten Dateien fuer 
   * eine Dateioperation. Bei cut wird in der 'paste' Operation auf dem Server 
   * fuer die 'gemerkten' Dateien ein Move gemacht. Die Dateien werden 
   * vom gewaehlten Ort zum Zielort verschoben.
   * 
   * @returns {undefined}
   */
  this.fm_cut_files = function() {
    console.log('fm_cut_files');
    self.cutCopySrcDir = self.pfad;
    self.cutCopyFiles = self.fm_gewaehlte_dateien();
    self.cutCopyOperation = 'cut';
    self.meldung_mit_timeout('zum Ausschneiden in Zwischenablage', 1500);
  };

  /*
   * Hier merkt sich die Dateiverwalting die markierten Dateien fuer 
   * eine Dateioperation. Bei copy wird in der 'paste' Operation auf dem Server 
   * fuer die 'gemerkten' Dateien eine Kopie gemacht. Die Dateien werden 
   * am gewaehlten Ort behalten und am Zielort wird eine Kopier der 
   * gewaehlten DAteien erstellt
   * 
   * @returns {undefined}
   */
  this.fm_copy_files = function() {
    //console.log('fm_copy_files');
    self.cutCopySrcDir = self.pfad;
    self.cutCopyFiles = self.fm_gewaehlte_dateien();
    self.cutCopyOperation = 'copy';
    self.meldung_mit_timeout('in Zwischenablage kopiert', 1500);
  };
  
  

  /*
   * Gewaehlte Dateien feststellen
   * 
   * @returns {String} eine per JSON.stringify schon vorbereitete List zum 
   * Absenden als Parameter an den Server
   */
  this.fm_gewaehlte_dateien = function() {
    var gewaehlte = document.querySelectorAll('.datei-gewaehlt');
    return self.fm_dateiliste_bilden(gewaehlte);
  };

  this.fm_dateiliste_bilden = function(gewaehlte) {
    var fnames = new Array();
    var i = 0;
    while(i < gewaehlte.length) {
      var str = { "java.lang.String": gewaehlte[i].innerText};
      fnames.push(str);
      //console.log('loeschen ' + pfad + ' ' + $(gewaehlte[i]).text());
      //i += 2;
      i++;
    }
    var liste = '{"List":' + JSON.stringify(fnames) + '}';
    // 'liste' enthaelt:
    // {"List":[{"java.lang.String":"test3.txt"},{"java.lang.String":"Test1.txt"},{"java.lang.String":"Test2.txt"}]}
    // und wird auf dem Server zu einer List[ArrayList<String>] bei der jede ArrayList<String> nur ein Element hat 
    //console.log(liste);
    return liste;
  };

  this.fm_menu_datei_umbenennen = function() {
    //var gewaehlte = $('.datei-gewaehlt');
    var gewaehlte = document.querySelector('.datei-gewaehlt');
    var fname = gewaehlte.textContent;
    
    self.dialog_laden_und_zeigen('data/tpl/dlg-rename.tpl', '', function() {
      document.querySelector('#cancel-btn').addEventListener('click', function() {
        self.dialog_schliessen();
      });
      document.querySelector('#speichern-btn').addEventListener('click', function() {
        self.fm_rename_file(fname, self.pfad, document.querySelector('#datei-name-in').value);
        self.dialog_schliessen();
      });
    });    
  };
  
  this.fm_menu_html_export = function() {
    self.fm_export_html();
  };
  
  this.sued_schliessen = function() {
    var suedDiv = document.querySelector('.sued');
    document.querySelector('.close-btn-fuss').removeEventListener('click', this);
    suedDiv.classList.remove('sued-open');
    suedDiv.style.height = '0';
  };

  /* --------- Dateifunktionen Ende ---------- */

  /* API functions */

  // http://localhost:8079/file-cms/svc?c=de.uhilger.filecms.api.FileMgr&f=JSONNICE&m=list&p=
  this.fm_get_list = function (relPfad) {
    var m = '?c=de.uhilger.filecms.api.FileMgr&m=list&p=' + relPfad;
    var u = '../svc' + m;
    self.fm_get(u, "json", function (respText) {
      var resp = JSON.parse(respText);
      if (resp.List[0].FileRef !== undefined) {
        var files = new Array();
        if (resp.List[0].FileRef instanceof Array) {
          for (var i = 0; i < resp.List[0].FileRef.length; i++) {
            files.push(new FileRef(resp.List[0].FileRef[i]));
          }
        } else {
          files.push(new FileRef(resp.List[0].FileRef));
        }
        var fl = new FileList(files);
        self.fm_render_list(fl);
      } else {
        // #dateien leeren
        var elem = document.querySelector("#dateien");
        elem.innerHTML = '';
      }
      
      // Breadcrumb
      
      var dirList = self.fm_buildBreadcrumb(relPfad);
      self.fm_renderBreadcrumb(dirList);     
    });
  };
  
  this.datei_neuer_ordner = function() {
    self.dialog_laden_und_zeigen('data/tpl/dlg-ask-folder.tpl', '', function() {
      document.querySelector('#cancel-btn').addEventListener('click', function() {
        self.dialog_schliessen();
      });
      document.querySelector('#speichern-btn').addEventListener('click', function() {
        var m = '?c=de.uhilger.filecms.api.FileMgr&m=newFolder&p=' + 
                self.pfad + 
                '&p=' + document.querySelector('#folder-name-in').value;
        var u = '../svc' + m;
        self.fm_get(u, "json", function(resp) {
          self.dialog_schliessen();
          self.fm_get_list(self.pfad);
        });
      });
    });    
  };
  
  this.fm_open_file = function() {
    var gewaehlte = document.querySelector('.datei-gewaehlt');
    var fname = gewaehlte.textContent;
    self.datei_ansehen_oder_bearbeiten(fname);
  };

  this.fm_get_file_content = function(typ, fname) {
    self.openFileName = fname;
    var m = '?c=de.uhilger.filecms.api.FileMgr&m=getCode&p=' + self.pfad + '&p=' + fname;
    var u = '../svc' + m;
    self.fm_get(u, "text", function(resp) {
      if(typ === 'text') {
        var mode = "text/x-java";
        if(fname.endsWith('js')) {
          mode = 'javascript';
        } else if(fname.endsWith('xml')) {
          mode = 'xml';
        } else if(fname.endsWith('properties')) {
          mode = 'xml';
        } else if(fname.endsWith('adoc')) {
          mode = 'text/x-markdown';
        }
        self.fm_text_edit(resp, mode);
      } else {
        self.fm_dok_edit(resp);
      }
    });
  };

  this.fm_save_file = function(saveFileName, method, callback) {
    var content;
    if(self.openEditor === 'text') {
      content = self.cm.getValue();
      self.cm.getDoc().markClean();
    } else {
      content = self.ed.getContent();
      tinymce.activeEditor.undoManager.clear();
    }
    var m = '?c=de.uhilger.filecms.api.FileMgr&m=' + method;
    var u = '../svc' + m;
    var data = '&p=' + self.pfad + '&p=' + saveFileName + '&p=' + 
            encodeURIComponent(content);
    self.fm_post(u, data, "text", function(resp) {
      // ...
    });
    self.openFileName = saveFileName;
    if(typeof (callback) !== 'function') {

    } else {
      callback();
    }
  };

  /*
   * Hier wird fuer eine zuvor markierte Liste von Dateien, fuer die 
   * Cut oder Copy gewaehlt wurde, die Operations ausgefuehrt (move oder copy)
   * @returns {undefined}
   */
  this.fm_paste_files = function() {
    var m;
    if(self.cutCopyOperation === 'cut') {
      //m = '?c=de.uhilger.filecms.api.FileMgr&m=moveFiles'; //&p=' + cutCopySrcDir + '&p=' + pfad + '&p=' + encodeURIComponent(liste);
      m = '?c=de.uhilger.filecms.api.FileMgr&m=moveFiles&p=' + self.cutCopySrcDir + '&p=' + self.pfad + '&p=' + encodeURIComponent(self.cutCopyFiles);
    } else {
      //m = '?c=de.uhilger.filecms.api.FileMgr&m=copyFiles'; //&p=' + cutCopySrcDir + '&p=' + pfad + '&p=' + encodeURIComponent(liste);
      m = '?c=de.uhilger.filecms.api.FileMgr&m=copyFiles&p=' + self.cutCopySrcDir + '&p=' + self.pfad + '&p=' + encodeURIComponent(self.cutCopyFiles);
    }
    var u = '../svc' + m;  
    self.fm_get(u, "text", function(resp) {
      // console.log('deleteFiles gab folgendes zurueck: ' + resp);
      self.fm_get_list(self.pfad);
    });
  };

  this.fm_del_files = function() {
    var liste = self.fm_gewaehlte_dateien();
    var m = '?c=de.uhilger.filecms.api.FileMgr&m=deleteFiles&p=' + self.pfad + '&p=' + encodeURIComponent(liste);
    var u = '../svc' + m;
    self.fm_get(u, "text", function(resp) {
      // console.log('deleteFiles gab folgendes zurueck: ' + resp);
      self.fm_get_list(self.pfad);
    });
  };

  this.fm_rename_file = function(fn, p, neuerName) {
    var m = '?c=de.uhilger.filecms.api.FileMgr&m=renameFile';
    m = m + '&p=' + p; 
    m = m + '&p=' + fn; 
    m = m + '&p=' + neuerName; 
    var u = '../svc' + m;
    self.fm_get(u, "text", function(resp) {
      self.fm_get_list(self.pfad);
    });  
  };
  
  this.fm_unzip_file = function(fn) {
    var m = '?c=de.uhilger.filecms.api.FileMgr&m=extractZipfile';
    m = m + '&p=' + self.pfad; 
    m = m + '&p=' + fn; 
    var u = '../svc' + m;
    self.fm_get(u, "text", function(resp) {
      var mtx = new Meldung('Rueckmeldung vom Entpacken: ' + resp);
      //console.log(mtx);
      self.html_erzeugen("data/tpl/fuss.tpl", mtx, function(html) {
        //console.log(html);
        var elem = document.querySelector('.sued');
        elem.innerHTML = html;
        document.querySelector('.close-btn-fuss').addEventListener('click', self.sued_schliessen);
        
        /*
        document.querySelector('.close-btn-fuss').addEventListener('click', function(){
          var suedDiv = document.querySelector('.sued');
          document.querySelector('.close-btn-fuss').removeEventListener('click', this);
          suedDiv.classList.remove('sued-open');
          suedDiv.style.height = '0';
        });
        */
        self.fm_fusszeile_zeigen();
        self.fm_get_list(self.pfad);
      });
    });  
  };
  
  this.fm_pack_folder = function() {
    //var liste = fm_gewaehlte_dateien();
    var m = '?c=de.uhilger.filecms.api.FileMgr&m=packFolder&p=' + self.pfad;
    var u = '../svc' + m;
    self.fm_get(u, "text", function(resp) {
      // console.log('deleteFiles gab folgendes zurueck: ' + resp);
      self.fm_get_list(self.pfad);
    });
  };  
  
  this.fm_export_html = function() {
    var m = '?c=de.uhilger.filecms.api.HtmlExportService&m=exportHtml';
    m = m + '&p=' + self.pfad; 
    var u = '../svc' + m;
    self.fm_get(u, "text", function(resp) {
      var mtx = new Meldung('Rueckmeldung vom HTML-Export: ' + resp);
      //console.log(mtx);
      self.html_erzeugen("data/tpl/fuss.tpl", mtx, function(html) {
        var elem = document.querySelector('.sued');
        elem.innerHTML = html;
        document.querySelector('.close-btn-fuss').addEventListener('click', self.sued_schliessen);
        self.fm_fusszeile_zeigen();
        //self.fm_get_list(self.pfad);
        /*
        $('.system-out').empty();
        $('.system-out').append('Rueckmeldung vom HTML-Export: ' + resp);
        fm_fusszeile_zeigen();
        */
      });
    });  
  };
  

  /* -------- upload ----------- */

  this.sendFile = function(datei) {
    //console.log('sendFile ' + datei);
    var uri = "../api/upload";
    var xhr = new XMLHttpRequest();  
    var fd = new FormData();  
    xhr.open("POST", uri, true);  
    xhr.onreadystatechange = function() {  
      if (xhr.readyState === 4 && xhr.status === 200) {  
        self.fm_get_list(self.pfad);
        if(self.dateien.length > 0) {
          self.sendFile(self.dateien.pop());
        }
      }  
    };  
    fd.append('dateiauswahlfeld', datei);  
    fd.append('pfad', self.pfad);
    xhr.send(fd);          
  };

  /* ---- codemirror editor handling -------- */

  /*
  function htmlDecode(value){ 
    return $('<div/>').html(value).text(); 
  }
  */

  this.fm_code_edit = function(content, m) {
    //console.log('fm_code_edit content: ' + content.substring(0,30));
    self.cm = CodeMirror.fromTextArea(document.getElementById("editspace"), {
      lineNumbers: true,
      lineWrapping: true,
      gutters: ["CodeMirror-linenumbers", "breakpoints"],
      mode: m,
      viewportMargin : Infinity,
      tabSize: 2,
      extraKeys: {
          "F9": function(cm) {
          cm.setOption("fullScreen", !cm.getOption("fullScreen"));
        },
          "Esc": function(cm) {
          if (cm.getOption("fullScreen")) cm.setOption("fullScreen", false);
        },
          ".": function(cm) {
          console.log('dot pressed: perhaps look up class or method name');
          /*
           * Hier kann man eine Funktion ausloesen, die fuer das 
           * Wort vor dem Punkt (Name der Klasse) eine Liste mit 
           * Vorschlaegen fuer Methodennamen einblendet.
           */

          /*
           * CodeMirror.Pass laesst das Zeichen zum Editorinhalt durch, 
           * verhindert aber das Ausloesen von 'keyHandled'
           */
          return CodeMirror.Pass; 
        }
      }
    });
    //cm.setValue(htmlDecode(content));
    //self.cm.setValue(content);
    self.cm.setValue(self.unescapeHtml(content));
    self.cm.getDoc().markClean();
    self.cm.on("gutterClick", function(theEditor, lineNumber) {
      var info = theEditor.lineInfo(lineNumber);
      //--lineNumber;
      //console.log(info.gutterMarkers.breakpoints.message);
      //var marker = info.gutterMarkers.breakpoints;
      //$(marker).tooltip('toggle');
    });
    /*
    cm.on("keyHandled", function(theEditor, keyName, event){
      console.log('cm.keyHandled keyName: ' + keyName + ', event.type: ' + event.type);    
    });
    */
  };

  this.makeMarker = function(msg) {
    var marker = document.createElement("div");
    marker.style.color = "#822";
    marker.innerHTML = "●";
    //marker.message = msg;
    $(marker).tooltip({
      placement: 'right',
      title: msg,
      offset: '0 -30'
    });
    return marker;
  };

  /* ---- TinyMCE editor handling -------- */

  this.fm_dok_editor_init = function(uid) {
    var base = self.fm_get_path(uid);
    //var edCount = 0;
    //console.log("fm_dok_editor_init calling tinymce.init with base: " + base + "/");

    /*
     * vgl.
     * http://stackoverflow.com/questions/4651676/how-do-i-remove-tinymce-and-then-re-add-it
     */
    //tinymce.EditorManager.execCommand('mceRemoveControl',true, 'textarea.text-editor');
    //tinymce.EditorManager.execCommand('mceAddControl',true, editor_id);
    if(self.ed !== undefined) {
      self.ed.destroy();
    }
    if(tinymce !== undefined) {
      tinymce.remove('textarea.text-editor');
      tinymce.EditorManager.editors = []; 
    }

    /*
     * Konfiguration TinyMCE
     */
    tinymce.init({
      content_css : "/file-cms/ui/mce.css",
      //content_css: "/jslib/bootstrap/css/bootstrap.min.css",
      selector: "textarea.text-editor",
      statusbar: false,
      menubar: false,
      plugins: 'advlist charmap code image link lists media table print preview save table textcolor importcss',
      toolbar: 'undo redo | styleselect | image table | link unlink | bullist numlist | outdent indent | code',
      /*
      menu: {
        file: {title: 'File', items: 'savevers | exit'},
        edit: {title: 'Edit', items: 'undo redo | cut copy paste pastetext | selectall'},
        view: {title: 'View', items: 'visualaid | code | link image media | template hr'},
      },
      */
      resize: 'both',
      importcss_append: true,
      width: "100%",
      height: '100%',
      relative_urls : true, 
      convert_urls : false, 
      document_base_url : base + "/",
      setup: function (editor) {
        self.ed = editor;
      }
    });

    window.addEventListener('resize', self.fm_resize_editor);
    //$(window).on('resize', self.fm_resize_editor);
    self.fm_resize_editor();
  };

  this.fm_resize_editor = function() {
    window.clearTimeout(self.tmo);
    self.tmo = window.setTimeout(function () {
      try {
        var myHeight = document.querySelector('.inhalt').offsetHeight - 
                document.querySelector('.nord').offsetHeight + 2; // - 4;
        //console.log('myHeight: ' + myHeight);
        self.ed.theme.resizeTo('100%', myHeight);  // sets the dimensions of the editable area
      } catch (err) {
      }
    }, 200);
  };


  
  /* -------- Editoren --------- */
  
  this.fm_text_edit = function(content, mode) {
    document.querySelector(".codeeditor-space").style.display = "block";
    //document.querySelector(".code-editor-container").style.display = "block";
    //document.querySelector(".zentrum-behaelter").style.display = "none";
    document.querySelector(".breadcrumb").style.display = "none";
    document.querySelector(".zentrum").style.display = "none";
    self.fm_code_edit(content, mode);  
    self.openEditor = 'text';
  };

  this.fm_dok_edit = function(content) {
    //fm_filectls_hide();
    self.fm_dok_editor_init(self.userid);
    document.querySelector("#mce-editor").style.display = "block";
    //$("#mce-editor").show();
    document.querySelector(".breadcrumb").style.display = "none";
    document.querySelector(".zentrum").style.display = "none";

    window.clearTimeout(self.tmo2);
    self.tmo2 = window.setTimeout(function () {
      try {
        self.ed.setContent(content);
        self.openEditor = 'dok';  
      } catch (err) {
      }
    }, 200);
  };
  
  this.fm_do_close = function() {
    document.querySelector(".codeeditor-space").style.display = "none";
    document.querySelector("#mce-editor").style.display = "none";
    // $("#mce-editor").hide();
    //document.querySelector(".code-editor-container").style.display = "none";
    //document.querySelector(".zentrum-behaelter").style.display = "block";
    document.querySelector(".breadcrumb").style.display = "block";
    document.querySelector(".zentrum").style.display = "block";
    if(self.cm !== undefined) {
      self.cm.toTextArea();
    }
    self.openFileName = '';
    self.openEditor = '';
    self.fm_get_list(self.pfad);
  };

  /* -------- An- und Abmelden ------------- */

  this.fm_get_login = function() {
    var m = '?c=de.uhilger.filecms.pub.SessionManager&m=getSessionUser';
    var u = '../pub' + m;
    self.fm_get(u, "text", function (resp) {
      self.userid = resp;
      self.login_zeigen();
      //document.querySelector("#userMenu").textContent = resp;
    });
  };

  this.fm_logout = function() {
    var m = '?c=de.uhilger.filecms.pub.SessionManager&m=expireSession';
    var u = '../pub' + m;
    self.fm_get(u, "text", function (resp) {
      //$('#userMenu').text('nicht angemeldet');
      window.location.href = '../logout.html';
    });
  };
  
  /* ----- Hilfsfunktionen ----- */

  this.serialisieren = function(obj) {
    return '{"' + obj.constructor.name + '":' + JSON.stringify(obj) + '}';
  };
  
  this.addEvtListener = function(selector, eventName, func) {
    document.querySelectorAll(selector).forEach(elem => { elem.addEventListener(eventName, func); });
  };
  
  this.removeAllListeners = function(id) {
    var el = document.getElementById(id);
    if(el !== null) {
      elClone = el.cloneNode(true);
      el.parentNode.replaceChild(elClone, el);
    }
  }; // https://stackoverflow.com/questions/19469881/remove-all-event-listeners-of-specific-type

  this.escapeHtml = function(text) {
    text = text.replace(/\u228/g,'&auml;');
    text = text.replace(/\u246/g,'&ouml;');
    text = text.replace(/\u252/g,'&uuml;');
    text = text.replace(/\u196/g,'&Auml;');
    text = text.replace(/\u214/g,'&Ouml;');
    text = text.replace(/\u220/g,'&Uuml;');
    text = text.replace(/\u223/g,'&szlig;');
    text = text.replace(/\u26/g,'&amp;');
    return text;
  };

  this.unescapeHtml = function(text) {
    text = text.replace(/&auml;/g, String.fromCharCode(228));
    text = text.replace(/&ouml;/g, String.fromCharCode(246));
    text = text.replace(/&uuml;/g, String.fromCharCode(252));
    text = text.replace(/&Auml;/g, String.fromCharCode(196));
    text = text.replace(/&Ouml;/g, String.fromCharCode(214));
    text = text.replace(/&Uuml;/g, String.fromCharCode(220));
    text = text.replace(/&szlig;/g, String.fromCharCode(223));
    text = text.replace(/&amp;/g, String.fromCharCode(26));
    return text;
  };

  /* ---- Vorlagen ---- */

  this.html_erzeugen = function(vurl, inhalt, cb) {
    var vorlage = self.cache[vurl];
    if(vorlage === undefined) {
      self.vorlage_laden_und_fuellen(vurl, inhalt, cb);
    } else {
      self.vorlage_fuellen(vurl, inhalt, cb);
    }
  };

  this.vorlage_fuellen = function(vurl, inhalt, cb) {
    cb(Mustache.render(self.cache[vurl], inhalt));
  };

  this.vorlage_laden_und_fuellen = function(vurl, inhalt, cb) {
    self.fm_get(vurl, "text", function(antwort) {
      self.cache[vurl] = antwort;
      self.vorlage_fuellen(vurl, inhalt, cb);
    });
  };

  /* -------- ajax helper functions ----------- */

  this.fm_get = function (u, dtype, scallback) {    
    var xmlhttp = new XMLHttpRequest();
    var url = u;
    xmlhttp.onreadystatechange = function() {
      if (this.readyState === 4 && this.status === 200) {
        scallback(this.responseText);
      }
    };
    xmlhttp.open("GET", url, true);
    xmlhttp.send();
  };
  
  self.fm_post = function(u, d, dtype, scallback) {
    var xmlhttp = new XMLHttpRequest();
    var url = u;
    xmlhttp.onreadystatechange = function() {
      if (this.readyState === 4 && this.status === 200) {
        scallback(this.responseText);
      }
    };
    xmlhttp.open("POST", url, true);
    xmlhttp.setRequestHeader('Content-type', 'application/x-www-form-urlencoded; charset=utf-8');
    xmlhttp.send(d);
  };

  /*
  this.http_get = function(u, cb)  {
    self.http_call('GET', u, null, cb);
  };
  
  this.http_post = function(u, data, cb) {
    self.http_call('POST', u, data, cb);
  };

  this.http_call = function (method, u, data, scallback) {    
    var xhr = new XMLHttpRequest();
    var url = u;
    xhr.onreadystatechange = function() {
      if (this.readyState === 4 && this.status === 200) {
        scallback(this.responseText);
      }
    };
    xhr.open(method, url, false);
    if(method === 'GET')  {
      xhr.send();
    } else if(method === 'POST' || method === 'PUT') {
      xhr.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');
      xhr.send(data);
    }
  };
  */


}