From ee378724076ae6917f9c75c329d7ff7c390b8f03 Mon Sep 17 00:00:00 2001
From: ulrich <undisclosed>
Date: Fri, 13 Dec 2019 17:26:19 +0000
Subject: [PATCH] jQuery entfernen weiter in Arbeit

---
 jslib/app-menu/app-menu.js |  246 +++++++++++++++++++++++-------------------------
 1 files changed, 118 insertions(+), 128 deletions(-)

diff --git a/jslib/app-menu/app-menu.js b/jslib/app-menu/app-menu.js
index 1a0723f..62c4760 100644
--- a/jslib/app-menu/app-menu.js
+++ b/jslib/app-menu/app-menu.js
@@ -1,141 +1,131 @@
-/*
- * die nachfolgenden Funktionen steuern das ein- und
- * ausblenden des menues
- */
-function app_menu_init(url_prefix, mdesc, mtpl, mselector, mbreite) {
-  _app_menu_selector = mselector;
-  _app_menu_mbreite = mbreite;
-  /*document.querySelector( "#nav-toggle" ).addEventListener("click", function() {
-    app_menu_toggle();
-  });*/
-  $(_app_menu_selector).css("flex-basis", "0em");
-  _app_menu_url_prefix = url_prefix;
-  $.get(mtpl, function(template) {
-    _app_menu_template = template;
-    Mustache.parse(_app_menu_template);   // optional, speeds up future uses
-    var menuDiv = $("<div/>");
-    $(menuDiv).addClass('app-menu-content');
-    $(menuDiv).css('position', "relative");
-    $(menuDiv).css('left', '-300px');
-    $(menuDiv).css('right', '0px');
-    $(_app_menu_selector).append(menuDiv);
+function AppMenu() {
+  var self = this;
+  var _app_menu_selector;
+  var _app_menu_mbreite;
+  var _app_menu_url_prefix = "";
+  var _app_menu_template;
 
-    app_menu_laden(mdesc);
-  });
-}
+  /*
+   * die nachfolgenden Funktionen steuern das ein- und
+   * ausblenden des menues
+   */
+  this.init = function (url_prefix, mdesc, mtpl, mselector, mbreite) {
+    self._app_menu_selector = mselector;
+    self._app_menu_mbreite = mbreite;
+    /*document.querySelector( "#nav-toggle" ).addEventListener("click", function() {
+      app_menu_toggle();
+    });*/
+    var menu = document.querySelector(self._app_menu_selector);
+    menu.style.flexBasis = '0em';
+    self._app_menu_url_prefix = url_prefix;
 
-function app_menu_do_toggle(elem) {
-  /*document.querySelector( "#nav-toggle" ).classList.toggle( "active" );
-  document.querySelector( "#nav-toggle" ).blur();*/
-  app_menu_toggle();
-}
+    var request = new XMLHttpRequest();
+    request.open("GET", mtpl);
+    request.addEventListener('load', function(event) {
+       if (request.status >= 200 && request.status < 300) {
+          //console.log(request.responseText);
+          self._app_menu_template = request.responseText;
+          Mustache.parse(self._app_menu_template);   // optional, speeds up future uses
+          var menuDiv = document.createElement("div");
+          menuDiv.classList.add('app-menu-content');
+          menuDiv.style.position = 'relative';
+          menuDiv.style.left = '-300px';
+          menuDiv.style.right = '0px';
+          menu.appendChild(menuDiv);
 
-function app_menu_toggle() {
-  /*document.querySelector( "#nav-toggle" ).classList.toggle( "active" );
-  document.querySelector( "#nav-toggle" ).blur();*/
-  var westDiv = $(_app_menu_selector);
-  if($(westDiv).hasClass('app-menu-open')) {
-    $(westDiv).removeClass('app-menu-open');
-    $(westDiv).css("flex-basis", "0em");
-  } else {
-    $(westDiv).addClass('app-menu-open');
-    $(westDiv).css("flex-basis", _app_menu_mbreite); // z.B. "16em"
-  }
-}
+          self.app_menu_laden(mdesc);
+       } else {
+          console.warn(request.statusText, request.responseText);
+       }
+    });
+    request.send();
 
-/*
- * ab hier Steuerung des Menueinhalts
- */
+  };
 
-var _app_menu_url_prefix = "";
-var _app_menu_template;
-var _app_menu_selector;
-var _app_menu_mbreite;
+  this.app_menu_do_toggle = function(elem) {
+    self.toggle();
+  };
 
-/*
- * mdesc: der URL einer JSON-Datei mit einer Menuebeschreibung
- */
-function app_menu_laden(mdesc, richtung) {
-  $.ajax({
-    url: _app_menu_url_prefix + mdesc,
-    type: "GET",
-    dataType : "json"
-  }).done(function( json ) {
-    app_menu_bauen(json, richtung);
-  });
-
-}
-
-function app_menu_bauen(menuejs, richtung) {
-
-  // Endposition des bestehenden Menues beim Wechsel herauf
-  var linksEndeAlt = "500px";
-  var rechtsEndeAlt = "600px";
-  // Anfangsposition des neuen Menues beim Wechsel herauf
-  var linksAnfangNeu = "-300px";
-  var rechtsAnfangNeu = "-1px";
-  // Endposition des neuen Menues beim Wechsel herauf
-  var linksEndeNeu = "0px";
-  var rechtsEndeNeu = "300px";
-
-  if(richtung === 'herunter') {
-    // Endposition des bestehenden Menues beim Wechsel herunter
-    linksEndeAlt = "-300px";
-    rechtsEndeAlt = "-1px";
-    // Anfangsposition des neuen Menues beim Wechsel herunter
-    linksAnfangNeu = "500px";
-    rechtsAnfangNeu = "600px";
-    // Endposition des neuen Menues beim Wechsel herunter
-    linksEndeNeu = "0px";
-    rechtsEndeNeu = "300px";
-  }
-
-  var menuDiv = $("<div/>");
-  $(menuDiv).addClass('app-menu-content');
-
-  $(menuDiv).css('position', "relative");
-  $(menuDiv).css('left', linksAnfangNeu);
-  $(menuDiv).css('right', rechtsAnfangNeu);
-  $(menuDiv).html(Mustache.render(_app_menu_template, menuejs));
-
-  $('.app-menu-content').delay(100).animate(
-    {left: linksEndeAlt },
-    100,
-    function() {
-      $('.smenu').attr('onclick','').unbind('click');
-      $('.bitem').attr('onclick','').unbind('click');
-      $('.mitem').attr('onclick','').unbind('click');
-      $(_app_menu_selector).empty();
-
-      $(_app_menu_selector).append(menuDiv);
-      $('.smenu').on('click', app_menu_klick_herunter);
-      $('.bitem').on('click', app_menu_klick_herauf);
-      $('.mitem').on('click', app_menu_ausfuehren);
-
-      $('.app-menu-content').delay(100).animate({left: linksEndeNeu });
-      $('.app-menu-content').animate({right: rechtsEndeNeu });
+  this.toggle = function() {
+    var menuDiv = document.querySelector(self._app_menu_selector);
+    if(menuDiv.classList.contains('app-menu-open')) {
+      menuDiv.classList.remove('app-menu-open');
+      menuDiv.style.flexBasis = '0em';
+    } else {
+      menuDiv.classList.add('app-menu-open');
+      menuDiv.style.flexBasis = self._app_menu_mbreite;
     }
-  );
-  $('.app-menu-content').animate({right: rechtsEndeAlt });
-}
+  };
 
-function app_menu_klick_herunter() {
-  app_menu_laden($(this).attr('data-verweis'), 'herunter');
-}
+  /*
+   * ab hier Steuerung des Menueinhalts
+   */
 
-function app_menu_klick_herauf() {
-  app_menu_laden($(this).attr('data-verweis'), 'herauf');
-}
 
-function app_menu_ausfuehren() {
-  var functionName = $(this).attr('data-verweis');
-  eval(functionName + "(this)");
-}
+  /*
+   * mdesc: der URL einer JSON-Datei mit einer Menuebeschreibung
+   */
+  this.app_menu_laden = function(mdesc, richtung) {
+    var xmlhttp = new XMLHttpRequest();
+    var url = self._app_menu_url_prefix + mdesc;
+    xmlhttp.onreadystatechange = function() {
+      if (this.readyState == 4 && this.status == 200) {
+        self.app_menu_bauen(JSON.parse(this.responseText), richtung);
+      }
+    };
+    xmlhttp.open("GET", url, true);
+    xmlhttp.send();
+  };
 
-function app_menu_test() {
-  alert("Test");
-}
+  this.app_menu_bauen = function(menuejs, richtung) {
+    var menuDiv = document.createElement("div");
+    menuDiv.classList.add('app-menu-content');
+    menuDiv.style.position = 'relative';
+    menuDiv.innerHTML = Mustache.render(self._app_menu_template, menuejs);
 
-function app_menu_test_2() {
-  alert("Test 2");
+    self.app_menu_remove_event_listener_multi('.smenu', 'click', self.app_menu_klick_herunter);
+    self.app_menu_remove_event_listener_multi('.bitem', 'click', self.app_menu_klick_herauf);
+    self.app_menu_remove_event_listener_multi('.mitem', 'click', self.app_menu_ausfuehren);
+
+    var menu = document.querySelector(self._app_menu_selector);
+    menu.innerHTML = '';
+    menu.append(menuDiv);
+
+    self.app_menu_add_event_listener_multi('.smenu', 'click', self.app_menu_klick_herunter);
+    self.app_menu_add_event_listener_multi('.bitem', 'click', self.app_menu_klick_herauf);
+    self.app_menu_add_event_listener_multi('.mitem', 'click', self.app_menu_ausfuehren);
+  };
+
+  this.app_menu_klick_herunter = function() {
+    self.app_menu_laden($(this).attr('data-verweis'), 'herunter');
+  };
+
+  this.app_menu_klick_herauf = function() {
+    self.app_menu_laden($(this).attr('data-verweis'), 'herauf');
+  };
+
+  this.app_menu_ausfuehren = function() {
+    var functionName = $(this).attr('data-verweis');
+    eval(functionName + "(this)");
+  };
+
+  /* --- Helferlein ---*/
+  /*
+    sel - '.smenu'
+    evt - 'click' fuer onclick
+    func - der verweis auf die funktion
+  */
+  this.app_menu_remove_event_listener_multi = function(sel, evt, func) {
+    var elem = document.querySelectorAll(sel);
+    for (var index = 0; index < elem.length; index++) {
+      elem[index].removeEventListener(evt, func);
+    }
+  };
+
+  this.app_menu_add_event_listener_multi = function(sel, evt, func) {
+    var elem = document.querySelectorAll(sel);
+    for (var index = 0; index < elem.length; index++) {
+      elem[index].addEventListener(evt, func);
+    }
+  };
 }

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