docs: fixed version selector (#60)

Signed-off-by: Kostis (Codefresh) <[email protected]>

docs/assets/versions.js

@@ -1,25 +1,48 @@
-setTimeout(function() {
-  const callbackName = 'callback_' + new Date().getTime();
-  window[callbackName] = function (response) {
-  const div = document.createElement('div');
-  div.innerHTML = response.html;
-  document.querySelector(".md-header__inner > .md-header__title").appendChild(div);
-  const container = div.querySelector('.rst-versions');
-  var caret = document.createElement('div');
-  caret.innerHTML = "<i class='fa fa-caret-down dropdown-caret'></i>"
-  caret.classList.add('dropdown-caret')
-  div.querySelector('.rst-current-version').appendChild(caret);
+const targetNode = document.querySelector('.md-header__inner');
+const observerOptions = {
+  childList: true,
+  subtree: true
+};
+
+const observerCallback = function(mutationsList, observer) {
+  for (let mutation of mutationsList) {
+    if (mutation.type === 'childList') {
+      const titleElement = document.querySelector('.md-header__inner > .md-header__title');
+      if (titleElement) {
+        initializeVersionDropdown();
+        observer.disconnect();
+      }
+    }
   }
+};
+
+const observer = new MutationObserver(observerCallback);
+observer.observe(targetNode, observerOptions);
+
+function initializeVersionDropdown() {
+  const callbackName = 'callback_' + new Date().getTime();
+  window[callbackName] = function(response) {
+    const div = document.createElement('div');
+    div.innerHTML = response.html;
+    document.querySelector(".md-header__inner > .md-header__title").appendChild(div);
+    const container = div.querySelector('.rst-versions');
+    var caret = document.createElement('div');
+    caret.innerHTML = "<i class='fa fa-caret-down dropdown-caret'></i>";
+    caret.classList.add('dropdown-caret');
+    div.querySelector('.rst-current-version').appendChild(caret);
+
+    div.querySelector('.rst-current-version').addEventListener('click', function() {
+      container.classList.toggle('shift-up');
+    });
+  };
 
   var CSSLink = document.createElement('link');
   CSSLink.rel='stylesheet';
   CSSLink.href = '/assets/versions.css';
   document.getElementsByTagName('head')[0].appendChild(CSSLink);
 
   var script = document.createElement('script');
-  script.src = 'https://argo-rollouts.readthedocs.io/_/api/v2/footer_html/?'+
-      'callback=' + callbackName + '&project=argo-rollouts&page=&theme=mkdocs&format=jsonp&docroot=docs&source_suffix=.md&version=' + (window['READTHEDOCS_DATA'] || { version: 'latest' }).version;
+  script.src = 'https://rollouts-plugin-trafficrouter-gatewayapi.readthedocs.io/_/api/v2/footer_html/?'+
+      'callback=' + callbackName + '&project=rollouts-plugin-trafficrouter-gatewayapi&page=&theme=mkdocs&format=jsonp&docroot=docs&source_suffix=.md&version=' + (window['READTHEDOCS_DATA'] || { version: 'latest' }).version;
   document.getElementsByTagName('head')[0].appendChild(script);
-}, 0);
-
-
+}