1 files changed, 51 insertions, 0 deletions
diff --git a/app/assets/javascripts/popovers/index.js b/app/assets/javascripts/popovers/index.js
new file mode 100644
index 00000000000..bfb61f02a3a
--- /dev/null
+++ b/app/assets/javascripts/popovers/index.js
@@ -0,0 +1,51 @@
+import Vue from 'vue';
+import { toArray } from 'lodash';
+import PopoversComponent from './components/popovers.vue';
+
+let app;
+
+const APP_ELEMENT_ID = 'gl-popovers-app';
+
+const getPopoversApp = () => {
+  if (!app) {
+    const container = document.createElement('div');
+    container.setAttribute('id', APP_ELEMENT_ID);
+    document.body.appendChild(container);
+
+    const Popovers = Vue.extend(PopoversComponent);
+    app = new Popovers();
+    app.$mount(`#${APP_ELEMENT_ID}`);
+  }
+
+  return app;
+};
+
+const isPopover = (node, selector) => node.matches && node.matches(selector);
+
+const handlePopoverEvent = (rootTarget, e, selector) => {
+  for (let { target } = e; target && target !== rootTarget; target = target.parentNode) {
+    if (isPopover(target, selector)) {
+      getPopoversApp().addPopovers([target]);
+      break;
+    }
+  }
+};
+
+export const initPopovers = () => {
+  ['mouseenter', 'focus', 'click'].forEach(event => {
+    document.addEventListener(
+      event,
+      e => handlePopoverEvent(document, e, '[data-toggle="popover"]'),
+      true,
+    );
+  });
+
+  return getPopoversApp();
+};
+
+export const dispose = elements => toArray(elements).forEach(getPopoversApp().dispose);
+
+export const destroy = () => {
+  getPopoversApp().$destroy();
+  app = null;
+};