update

2-ui/5-widgets/5-custom-events/menu-callback.view/menu.js

@@ -0,0 +1,59 @@
+function Menu(options) {
+  var elem;
+
+  function getElem() {
+    if (!elem) render();
+    return elem;
+  }
+
+  function render() {
+    var elemHtml = options.template({title: options.title});
+
+    elem = $(elemHtml);
+
+    elem.on('mousedown selectstart', false);
+
+    elem.on('click', '.title', onTitleClick);
+    elem.on('click', 'a', onItemClick)
+  }
+
+
+  function renderItems() {
+    if (elem.find('ul').length) return;
+    
+    var listHtml = options.listTemplate({items: options.items});
+    elem.append(listHtml);
+  }
+
+  function onItemClick(e) {
+    e.preventDefault();
+
+    var onselect = options.onselect;
+    if (onselect) {
+      onselect(e.currentTarget.getAttribute('href').slice(1));
+    }
+  }
+
+  function onTitleClick(e) {
+    toggle();
+  }
+
+  function open() {
+    renderItems();
+    elem.addClass('open');
+  };
+
+  function close() {
+    elem.removeClass('open');
+  };
+
+  function toggle() {
+    if (elem.hasClass('open')) close();
+    else open();
+  };
+
+  this.getElem = getElem;
+  this.toggle = toggle;
+  this.close = close;
+  this.open = open;
+}