mailbox owner is required

dashboard/src/components/MailboxDialog.vue

@@ -44,7 +44,15 @@ async function onRemoveAlias(index) {
   aliases.value.splice(index, 1);
 }
 
+const form = useTemplateRef('form');
+const isFormValid = ref(false);
+function validateForm() {
+  isFormValid.value = form.value && form.value.checkValidity();
+}
+
 async function onSubmit() {
+  if (!form.value.reportValidity()) return;
+
   busy.value = true;
   formError.value = '';
 
@@ -133,6 +141,8 @@ defineExpose({
     });
 
     dialog.value.open();
+
+    setTimeout(validateForm, 100); // update state of the confirm button
   }
 });
 
@@ -143,23 +153,22 @@ defineExpose({
     :title="mailbox ? $t('email.editMailboxDialog.title') : $t('email.addMailboxDialog.title')"
     :confirm-label="$t(mailbox ? 'main.dialog.save' : 'email.incoming.mailboxes.addAction')"
     :confirm-busy="busy"
-    :confirm-active="!busy && name !== '' && domain !== ''"
+    :confirm-active="!busy && isFormValid"
      reject-style="secondary"
     :reject-label="$t('main.dialog.cancel')"
     :reject-active="!busy"
     @confirm="onSubmit()"
   >
     <div>
-
-      <form @submit.prevent="onSubmit()" novalidate autocomplete="off">
+      <form @submit.prevent="onSubmit()" novalidate autocomplete="off" ref="form" @input="validateForm()">
          <fieldset :disabled="busy">
           <input type="submit" style="display: none;" :disabled="!name || !domain"/>
 
           <FormGroup>
             <label for="nameInput">{{ $t('email.addMailboxDialog.name') }}</label>
             <InputGroup>
-              <TextInput id="nameInput" style="flex-grow: 1;" v-model="name" :readonly="mailbox ? true : undefined"/>
-              <SingleSelect v-model="domain" :options="domainList" option-key="domain" option-label="label" :disabled="!!mailbox"/>
+              <TextInput id="nameInput" style="flex-grow: 1;" v-model="name" :readonly="mailbox ? true : undefined" :required="!mailbox"/>
+              <SingleSelect v-model="domain" :options="domainList" option-key="domain" option-label="label" :disabled="!!mailbox" :required="!mailbox"/>
             </InputGroup>
             <div class="warning-label" v-if="!domainHasIncomingEnabled">{{ $t('email.addMailboxDialog.incomingDisabledWarning') }}</div>
             <div class="error-label" v-if="formError">{{ formError }}</div>
@@ -167,7 +176,7 @@ defineExpose({
 
           <FormGroup>
             <label>{{ $t('email.editMailboxDialog.owner') }}</label>
-            <SingleSelect v-model="ownerId" :options="usersAndGroupsAndApps" :searchThreshold="10" option-key="id" option-label="name"/>
+            <SingleSelect v-model="ownerId" :options="usersAndGroupsAndApps" :searchThreshold="10" option-key="id" option-label="name" required/>
           </FormGroup>
 
           <Checkbox v-if="mailbox" v-model="active" :label="$t('email.updateMailboxDialog.activeCheckbox')"/>