rename _assets to assets

assets/src/utils/buttons.js

@@ -0,0 +1,39 @@
+function loading (button) {
+  let el = document.querySelector(`#${button}-button > i`)
+
+  if (el === undefined || el === null) {
+    console.log('Error getting button ' + button)
+    return
+  }
+
+  el.dataset.icon = el.innerHTML
+  el.style.opacity = 0
+
+  setTimeout(() => {
+    el.classList.add('spin')
+    el.innerHTML = 'autorenew'
+    el.style.opacity = 1
+  }, 200)
+}
+
+function done (button, success = true) {
+  let el = document.querySelector(`#${button}-button > i`)
+
+  if (el === undefined || el === null) {
+    console.log('Error getting button ' + button)
+    return
+  }
+
+  el.style.opacity = 0
+
+  setTimeout(() => {
+    el.classList.remove('spin')
+    el.innerHTML = el.dataset.icon
+    el.style.opacity = 1
+  }, 200)
+}
+
+export default {
+  loading,
+  done
+}