fix: refresh hostname filter without observer

fixes d45c19b

Author: maurerle

lib/datadistributor.ts

@@ -67,11 +67,13 @@ export const DataDistributor = function () {
     refresh();
   }
 
-  function refresh() {
+  function refresh(withoutObservers?: boolean) {
     if (data === undefined) {
       return;
     }
-    notifyObservers();
+    if (!withoutObservers) {
+      notifyObservers();
+    }
 
     let filter: FilterMethod = filters.reduce(
       function (a: FilterMethod, filter) {

lib/filters/hostname.ts

@@ -4,15 +4,17 @@ import { CanRender } from "../container.js";
 import { Filter } from "../datadistributor.js";
 
 export const HostnameFilter = function (): CanRender & Filter {
-  let refreshFunctions: (() => any)[] = [];
+  let refreshFunctions: ((bool?) => any)[] = [];
   let timer: ReturnType<typeof setTimeout>;
   let input = document.createElement("input");
 
   function refresh() {
     clearTimeout(timer);
     timer = setTimeout(function () {
       refreshFunctions.forEach(function (f) {
-        f();
+        // observer gui function recreates the filter this removes the input focus
+        // the hostname filter should therefore not notifyObservers on refresh
+        f(true);
       });
     }, 250);
   }