optimize form render with many fields

app/javascript/template_builder/builder.vue

@@ -205,7 +205,7 @@
       <div
         v-if="withFieldsList"
         class="relative w-80 flex-none mt-1 pr-4 pl-0.5 hidden md:block"
-        :class="drawField ? 'overflow-hidden' : 'overflow-auto'"
+        :class="drawField ? 'overflow-hidden' : 'overflow-y-auto overflow-x-hidden'"
       >
         <div
           v-if="drawField"
@@ -888,9 +888,11 @@ export default {
       })
     },
     save () {
-      if (this.$el.closest('template-builder')) {
-        this.$el.closest('template-builder').dataset.template = JSON.stringify(this.template)
-      }
+      this.$nextTick(() => {
+        if (this.$el.closest('template-builder')) {
+          this.$el.closest('template-builder').dataset.template = JSON.stringify(this.template)
+        }
+      })
 
       this.pushUndo()
 

app/javascript/template_builder/field.vue

@@ -72,6 +72,8 @@
           <span
             v-else
             class="dropdown dropdown-end"
+            @mouseenter="renderDropdown = true"
+            @touchstart="renderDropdown = true"
           >
             <label
               tabindex="0"
@@ -84,6 +86,7 @@
               />
             </label>
             <ul
+              v-if="renderDropdown"
               tabindex="0"
               class="mt-1.5 dropdown-content menu menu-xs p-2 shadow bg-base-100 rounded-box w-52 z-10"
               draggable="true"
@@ -331,7 +334,8 @@ export default {
   data () {
     return {
       isNameFocus: false,
-      showPaymentModal: false
+      showPaymentModal: false,
+      renderDropdown: false
     }
   },
   computed: {

app/javascript/template_builder/field_submitter.vue

@@ -1,5 +1,9 @@
 <template>
-  <div v-if="mobileView">
+  <div
+    v-if="mobileView"
+    @mouseenter="renderDropdown = true"
+    @touchstart="renderDropdown = true"
+  >
     <div class="flex space-x-2 items-end">
       <div class="group/contenteditable-container bg-base-100 rounded-md p-2 border border-base-300 w-full flex justify-between items-end">
         <div class="flex items-center space-x-2">
@@ -29,7 +33,7 @@
           />
         </label>
         <ul
-          v-if="editable"
+          v-if="editable && renderDropdown"
           tabindex="0"
           class="rounded-md min-w-max mb-2"
           :class="menuClasses"
@@ -85,6 +89,8 @@
   <div
     v-else
     class="dropdown"
+    @mouseenter="renderDropdown = true"
+    @touchstart="renderDropdown = true"
   >
     <label
       v-if="compact"
@@ -125,7 +131,7 @@
       </span>
     </label>
     <ul
-      v-if="editable || !compact"
+      v-if="(editable || !compact) && renderDropdown"
       tabindex="0"
       :class="menuClasses"
       @click="closeDropdown"
@@ -222,6 +228,11 @@ export default {
     }
   },
   emits: ['update:model-value', 'remove', 'new-submitter', 'name-change'],
+  data () {
+    return {
+      renderDropdown: false
+    }
+  },
   computed: {
     colors () {
       return [

app/javascript/template_builder/field_type.vue

@@ -1,5 +1,9 @@
 <template>
-  <span class="dropdown">
+  <span
+    class="dropdown"
+    @mouseenter="renderDropdown = true"
+    @touchstart="renderDropdown = true"
+  >
     <slot>
       <label
         tabindex="0"
@@ -15,7 +19,7 @@
       </label>
     </slot>
     <ul
-      v-if="editable"
+      v-if="editable && renderDropdown"
       tabindex="0"
       class="dropdown-content menu menu-xs p-2 shadow rounded-box w-52 z-10 mb-3"
       :class="menuClasses"
@@ -78,6 +82,11 @@ export default {
     }
   },
   emits: ['update:model-value'],
+  data () {
+    return {
+      renderDropdown: false
+    }
+  },
   computed: {
     fieldNames () {
       return {