From ebc1f371409171987dee6a782145189e25cc4d56 Mon Sep 17 00:00:00 2001
From: ulrich
Date: Thu, 14 Jan 2021 20:24:13 +0000
Subject: [PATCH] Text bearbeiten und speichern noch in arbeit

---
 web/ui2/js/app.js |  503 +++++++++++++++++++++++++++++++++++++++++++++++++------
 1 files changed, 445 insertions(+), 58 deletions(-)

diff --git a/web/ui2/js/app.js b/web/ui2/js/app.js
index 4627bed..44685f2 100644
--- a/web/ui2/js/app.js
+++ b/web/ui2/js/app.js
@@ -7,21 +7,37 @@
   this.pfad = '';
   this.loc;
   this.modus = 'kacheln';
+  this.cm;
+  this.tinymce;
   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.cache = {}; // mustache template cache
 
   this.datei_neuer_text = function () {
-    self.meldung_mit_timeout("Neuer Text", 1500);
+    //self.meldung_mit_timeout("Neuer Text", 1500);
+    self.fm_text_edit('Neue Datei');
+  };
+  
+  this.datei_neuer_ordner = function() {
+    
   };
 
   /* Funktionen aus App-Vorlage */
 
   this.init = function () {
+    
+    // Hide and show an element by changing "display" to block and none
+    document.querySelector(".codeeditor-space").style.display = "none";
+    document.querySelector(".code-editor-container").style.display = "none";
+    document.querySelector("#mce-editor").style.display = "none";
+    //document.querySelector(".box").style.display = "block";
+    
     //self.vorlagen = new Vorlagen();
     self.appMenu = new AppMenu();
     self.appMenu.init(
@@ -44,6 +60,8 @@
     } else {
       self.fm_get_list('');
     }
+    
+    self.seitenleiste_umschalten();
     //fm_init_uploader();
     self.loc = window.location.protocol + '//' + window.location.host;
     
@@ -75,7 +93,7 @@
       ostDiv.classList.add('ost-open');
       ostDiv.style.flexBasis = '6em';
     }
-    self.menue_umschalten();
+    //self.menue_umschalten();
   };
 
   this.fusszeile_umschalten = function () {
@@ -104,6 +122,79 @@
       }, 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(self.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);
+    } 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() {
+
+    });    
+    
+    
+    /*
+    $('#modal_ok').click(function() {
+      $('#modal_ok').attr('onclick','').unbind('click');
+      // hier speichern
+      fm_save_file($('#dateiname').val(), 'saveTextFileAs', callback);
+    });
+    $('#saveModalTitle').text('Datei speichern');
+    $('#dialogfrage').text("Dateiname?");
+
+    var fname = $('.datei-gewaehlt').text();
+    if(fname !== undefined) {
+      $('#dateiname').val(fname);
+    } else {
+      $('#dateiname').val('');
+    }
+    $('#dateiname').attr('placeholder', 'Dateiname');
+    $('#saveModal').modal({
+      keyboard: false,
+      show: true
+    });
+    */
+  };
+
+
 
   /* Dialog-Funktionen */
 
@@ -113,23 +204,22 @@
    vurl - URL zur Dialogvorlage
    msgTpl - URL mit einer Vorlage eines Mitteilungstextes (optional)
    */
-  this.dialog_laden_und_zeigen = function (vurl, msgTpl) {
-    if (msgTpl !== '') {
-      fetch(msgTpl)
-              .then(data => {
-                // Handle data
-                self.dialog_zeigen(vurl, data);
-              }).catch(error => {
-        // Handle error
+  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, '');
+      self.dialog_zeigen(vurl, vorlage, cb);
     }
   };
 
-  this.dialog_zeigen = function (vurl, inhalt) {
+  this.dialog_zeigen = function (vurl, inhalt, cb) {
     var dlg = document.querySelector(".dialog");
-    self.vorlagen.html_erzeugen(
+    self.html_erzeugen(
             vurl,
             inhalt,
             function (html) {
@@ -138,6 +228,11 @@
               dlg.innerHTML = html;
               document.querySelector('.close-btn').addEventListener('click', self.dialog_schliessen);
               //dlg.slideDown(300);
+              if(typeof(cb) !== 'function') {
+                // ..
+              } else {
+                cb();
+              }
             });
   };
 
@@ -152,19 +247,14 @@
  
   this.fm_dateiwahl = function(ev) {
     var elem = ev.target;
-    //console.log(elem.nodeName);
-    //var elem = this;
-    //console.log('dateiwahl nach click, event shift: ' + ev.shiftKey + ", event ctrl: " + ev.ctrlKey);
     if(self.modus == 'kacheln') {
       // Kacheln
       if(elem.classList.contains("icon-folder")) {
-        //console.log('contains icon-folder');
         if(/*ev.shiftKey || */ ev.ctrlKey) {
-          //$(elem).find('.dateiname').addClass('datei-gewaehlt');
-          elem.querySelector('.dateiname').classList.add('datei-gewaehlt');
+          var par = elem.parentElement;
+          par.querySelector('.dateiname').classList.add('datei-gewaehlt');
         } else {
           var ordner = elem.parentElement.querySelector('.dateiname').textContent.trim();
-          //console.log('ordner ' + ordner);
           if(self.pfad.length > 0) {
             self.pfad = self.pfad + '/' + ordner;
           } else {
@@ -173,7 +263,6 @@
           self.fm_get_list(self.pfad);
         }
       } else if(elem.classList.contains('datei')) {
-        //console.log('contains datei');
         if(/*ev.shiftKey || */ ev.ctrlKey) {
           // mehrere Dateien sollen gewaehlt werden
         } else {
@@ -182,37 +271,44 @@
             gew.classList.remove('datei-gewaehlt');
           }        
         }
-        //$(elem).find('.dateiname').addClass('datei-gewaehlt');
         var par = elem.parentElement;
-        //console.log(par.nodeName);
         par.querySelector('.dateiname').classList.add('datei-gewaehlt');
       } else {
         //console.log('kein folder oder file...');
       }
     } else {
-      // Liste NOCH NEU MACHEN OHNE jQuery, wenn Liste implementiert ist
-      if(elem.querySelector('.datei-elem').children(0).hasClass('icon-doc-text-inv')) {
+      // Liste
+      var pElem = elem.closest('.datei-zeile');
+      var dElem = pElem.querySelector('.datei-elem');
+      if(dElem.getElementsByTagName("i")[0].classList.contains('icon-doc-text-inv')) {
         // Datei
         if(/*ev.shiftKey || */ ev.ctrlKey) {
           // mehrere Dateien sollen gewaehlt werden
         } else {
-          document.querySelector('.table-info').classList.remove('table-info');
-          document.querySelector('.datei-gewaehlt').classList.remove('datei-gewaehlt');
+          var ti = document.querySelector('.table-info');
+          if(ti !== null) {
+            ti.classList.remove('table-info');
+          }
+          var dg = document.querySelector('.datei-gewaehlt');
+          if(dg !== null) {
+            dg.classList.remove('datei-gewaehlt');
+          }
         }
-        elem.classList.add('table-info');
-        elem.querySelector('.dateiname').classList.add('datei-gewaehlt');
+        pElem.classList.add('table-info');
+        pElem.querySelector('.dateiname').classList.add('datei-gewaehlt');
       } else {
         // Ordner
         if(/*ev.shiftKey || */ ev.ctrlKey) {
-          elem.children[0].classList.add('datei-gewaehlt');
+          //elem.children[0].classList.add('datei-gewaehlt');
+          pElem.querySelector('.dateiname').classList.add('datei-gewaehlt');
         } else {
-          var ordner = elem.querySelector('.dateiname').textContent;
+          var ordner = pElem.querySelector('.dateiname').textContent;
           if(self.pfad.length > 0) {
             self.pfad = self.pfad + '/' + ordner;
           } else {
             self.pfad = ordner;
           }
-          self.fm_get_list(pfad);
+          self.fm_get_list(self.pfad);
         }
       }   
     }
@@ -220,7 +316,7 @@
  
   
   this.fm_render_list = function (fl) {
-    if (self.modus == 'kacheln') {
+    if (self.modus === 'kacheln') {
       // Kachelansicht
       self.html_erzeugen("data/tpl/kacheln.tpl", fl, function(html) {
         var elem = document.querySelector('#dateien');
@@ -229,22 +325,15 @@
       });
     } else {
       // Listenansicht
-      
-      // neu bauen
-      
-      /*
-      var template = $('#tpl-liste').html();
-      Mustache.parse(template);   // optional, speeds up future uses
-      $('.figure').attr('onclick', '').unbind('click');
-      $('#dateien').empty();
-      $('#dateien').html(Mustache.render(template, fl));
-      $('.datei-zeile').click(fm_dateiwahl);
-      */
+      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) {
-    //console.log('pfad: ' + pfad);
     var restdir;
     if (self.pfad.indexOf(self.PUB_DIR) > -1) {
       restdir = self.pfad.substr(self.PUB_DIR.length);
@@ -264,7 +353,6 @@
       }
     }
     var pdir = self.fm_get_base(uid);
-    // console.log('fm_get_path path: ' + pdir + "/" + restdir);
     if (restdir.length > 1) {
       return pdir + "/" + restdir;
     } else {
@@ -273,7 +361,6 @@
   };
 
   this.fm_get_base = function (uid) {
-    //console.log('pfad: ' + pfad);
     var pdir;
     if (self.pfad.indexOf(self.PUB_DIR) > -1) {
       pdir = '/data/' + uid;
@@ -284,7 +371,6 @@
     } else if (self.pfad.indexOf(self.DATA_DIR) > -1) {
       pdir = '';
     }
-    //console.log('fm_get_base base: ' + pdir + uid);
     return pdir;
   };
   
@@ -316,6 +402,39 @@
     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.
@@ -331,18 +450,34 @@
     if(dirList.length > 1) {
       var last = dirList.pop();
       var bcList = new BcrFiles(dirList);
+      
       self.html_erzeugen("data/tpl/bcr.tpl", bcList, function(html) {
-        elem.innerHTML = html;
+        var htmlGesamt = html;
         self.html_erzeugen("data/tpl/bcr2.tpl", last, function(html) {
-          elem.innerHTML += html;
-          self.addEvtListener('.bc-link', 'click', self.fm_bc_click);
+          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) {
-        elem.innerHTML = html;
-        self.addEvtListener('.bc-link', 'click', self.fm_bc_click);
+        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();
+        });
       });            
     }
   };
@@ -364,13 +499,10 @@
     }
   };
 
-
-
   /* 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) {
-    //$('#ansicht').attr('onclick', '').unbind('click');
     var m = '?c=de.uhilger.filecms.api.FileMgr&m=list&p=' + relPfad;
     var u = '../svc' + m;
     self.fm_get(u, "json", function (respText) {
@@ -386,7 +518,6 @@
         }
         var fl = new FileList(files);
         self.fm_render_list(fl);
-        //self.fm_render_list(resp);
       } else {
         // #dateien leeren
         var elem = document.querySelector("#dateien");
@@ -396,8 +527,183 @@
       // Breadcrumb
       
       var dirList = self.fm_buildBreadcrumb(relPfad);
-      self.fm_renderBreadcrumb(dirList);      
+      self.fm_renderBreadcrumb(dirList);     
     });
+  };
+  
+  this.fm_edit_as_text = function() {
+    self.fm_get_file_content('text');
+  };
+  
+  this.fm_get_file_content = function(typ) {
+    var gewaehlte = document.querySelector('.datei-gewaehlt');
+    //var fname = $(gewaehlte).find('.dateiname').text();
+
+    var fname = gewaehlte.textContent;
+    //console.log('fname: ' + 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 = ed.getContent();
+      tinymce.activeEditor.undoManager.clear();
+    }
+    var m = '?c=de.uhilger.filecms.api.FileMgr&m=' + method;
+    var u = '../svc'; // + m;
+    //var data = [self.pfad, saveFileName, content];
+    //var data = "p=" + self.serialisieren(self.pfad);
+    //data += "&p=" + self.serialisieren(saveFileName);
+    //data += "&p=" + self.serialisieren(content);
+    var data = 'c=de.uhilger.filecms.api.FileMgr&m=' + method + '&p=' + self.pfad + '&p=' + saveFileName + 'p3=' + content;
+    self.http_post(u, data, function(resp) {
+      // hier scheint nichts zurueckzukommen..
+    });
+    /*
+    self.fm_post(u, {p: self.pfad, p: saveFileName, p: content}, '', function(resp) {
+      // hier scheint nichts zurueckzukommen..
+    });
+    */
+    self.openFileName = saveFileName;
+    if(typeof (callback) !== 'function') {
+
+    } else {
+      callback();
+    }
+  };
+
+
+
+/* ---- codemirror editor handling -------- */
+
+  /*
+  function htmlDecode(value){ 
+    return $('<div/>').html(value).text(); 
+  }
+  */
+
+  this.fm_code_edit = function(content, m) {
+    //console.log('fm_code_edit content: ' + content.substring(0,30));
+    self.cm = CodeMirror.fromTextArea(document.getElementById("editspace"), {
+      lineNumbers: true,
+      lineWrapping: true,
+      gutters: ["CodeMirror-linenumbers", "breakpoints"],
+      mode: m,
+      viewportMargin : Infinity,
+      tabSize: 2,
+      extraKeys: {
+          "F9": function(cm) {
+          cm.setOption("fullScreen", !cm.getOption("fullScreen"));
+        },
+          "Esc": function(cm) {
+          if (cm.getOption("fullScreen")) cm.setOption("fullScreen", false);
+        },
+          ".": function(cm) {
+          console.log('dot pressed: perhaps look up class or method name');
+          /*
+           * Hier kann man eine Funktion ausloesen, die fuer das 
+           * Wort vor dem Punkt (Name der Klasse) eine Liste mit 
+           * Vorschlaegen fuer Methodennamen einblendet.
+           */
+
+          /*
+           * CodeMirror.Pass laesst das Zeichen zum Editorinhalt durch, 
+           * verhindert aber das Ausloesen von 'keyHandled'
+           */
+          return CodeMirror.Pass; 
+        }
+      }
+    });
+    //cm.setValue(htmlDecode(content));
+    //cm.setValue(content);
+    self.cm.setValue(self.unescapeHtml(content));
+    self.cm.getDoc().markClean();
+    self.cm.on("gutterClick", function(theEditor, lineNumber) {
+      var info = theEditor.lineInfo(lineNumber);
+      //--lineNumber;
+      //console.log(info.gutterMarkers.breakpoints.message);
+      //var marker = info.gutterMarkers.breakpoints;
+      //$(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;
+  };
+
+  
+  /* -------- 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";
+    self.fm_code_edit(content, mode);  
+    self.openEditor = 'text';
+  };
+
+  this.fm_dok_edit = function(content) {
+    //fm_filectls_hide();
+    fm_dok_editor_init(userid);
+    $("#mce-editor").show();
+
+    window.clearTimeout(tmo2);
+    tmo2 = window.setTimeout(function () {
+      try {
+        ed.setContent(content);
+        openEditor = 'dok';  
+      } catch (err) {
+      }
+    }, 200);
+  };
+  
+  this.fm_do_close = function() {
+    document.querySelector(".codeeditor-space").style.display = "none";
+    document.querySelector(".code-editor-container").style.display = "none";
+    document.querySelector(".zentrum-behaelter").style.display = "block";
+    if(self.cm !== undefined) {
+      self.cm.toTextArea();
+    }
+    self.openFileName = '';
+    self.openEditor = '';
+    self.fm_get_list(self.pfad);
   };
 
   /* -------- An- und Abmelden ------------- */
@@ -437,6 +743,30 @@
     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) {
@@ -472,5 +802,62 @@
     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');
+    //xmlhttp.send(d);
+    xmlhttp.send(self.serialisieren(d));
+
+    /*
+    $.ajax({
+      url: u,
+      data: d,
+      type: "POST",
+      dataType: dtype,
+      success: scallback,
+      error: function (xhr, status, errorThrown) {
+        $('#fehler').html("Error: " + errorThrown + " Status: " + status);
+      },
+      complete: function (xhr, status) {
+        //alert( "The request is complete!" );
+      }
+    });
+     */
+  };
+
+  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);
+    if(method === 'GET')  {
+      xhr.send();
+    } else if(method === 'POST' || method === 'PUT') {
+      xhr.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');
+      xhr.send(data);
+    }
+  };
+  
+
 
 }

--
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