From 02d0003f91a68c632b91096b6f064dfeb9d455f9 Mon Sep 17 00:00:00 2001
From: Andrew Scott <ascott18@gmail.com>
Date: Tue, 11 Jul 2023 15:09:39 -0700
Subject: [PATCH] fix(vue3): handle the "clear" button in html5 date inputs

---
 .../src/components/input/c-datetime-picker.vue  | 17 ++++++++++++-----
 .../test/targets.metadata.ts                    |  7 ++++---
 2 files changed, 16 insertions(+), 8 deletions(-)

diff --git a/src/coalesce-vue-vuetify3/src/components/input/c-datetime-picker.vue b/src/coalesce-vue-vuetify3/src/components/input/c-datetime-picker.vue
index f58ae21fd..f466fef57 100644
--- a/src/coalesce-vue-vuetify3/src/components/input/c-datetime-picker.vue
+++ b/src/coalesce-vue-vuetify3/src/components/input/c-datetime-picker.vue
@@ -332,7 +332,7 @@ export default defineComponent({
     },
 
     parseUserInput(val: string) {
-      var value: Date | null | undefined;
+      var value: Date | null;
       const referenceDate = this.internalValueZoned || this.createDefaultDate();
 
       if (!val || !val.trim()) {
@@ -372,7 +372,7 @@ export default defineComponent({
             // So, we have to just ignore the user's input in this case.
 
             // Ignore all events if the year isn't fully typed.
-            return;
+            return null;
           }
 
           // If the input didn't match our format exactly,
@@ -381,7 +381,9 @@ export default defineComponent({
           // Behavior of new Date() is generally always Invalid Date if you just give it a time,
           // except if you're on Chrome and give it an invalid time like "8:98 AM" - it'll give you "Thu Jan 01 1998 08:00:00".
           // Since the user wouldn't ever see the date part when only entering a time, there's no chance to detect this error.
-          value = parseDateUserInput(val, referenceDate, this.internalDateKind);
+          value =
+            parseDateUserInput(val, referenceDate, this.internalDateKind) ??
+            null;
         }
 
         if (value && this.internalTimeZone) {
@@ -400,10 +402,15 @@ export default defineComponent({
       }
 
       this.error = [];
-      var value: Date | null | undefined;
+      var value: Date | null;
       const referenceDate = this.internalValueZoned || this.createDefaultDate();
 
       if (isNative) {
+        if (val == "") {
+          // Emptystring is emitted when the user clicks "clear" in the date picker popup
+          this.emitInput(null);
+          return;
+        }
         value = parse(val, this.nativeInternalFormat, referenceDate);
       } else {
         // Capture the user's intermediate text input
@@ -468,7 +475,7 @@ export default defineComponent({
       }
     },
 
-    emitInput(value: any) {
+    emitInput(value: Date | null) {
       if (this.model && this.dateMeta) {
         (this.model as any)[this.dateMeta.name] = value;
       }
diff --git a/src/coalesce-vue-vuetify3/test/targets.metadata.ts b/src/coalesce-vue-vuetify3/test/targets.metadata.ts
index d9fa2ae32..6f108d112 100644
--- a/src/coalesce-vue-vuetify3/test/targets.metadata.ts
+++ b/src/coalesce-vue-vuetify3/test/targets.metadata.ts
@@ -1,3 +1,4 @@
+import { BehaviorFlags } from "coalesce-vue";
 import {
   ObjectType,
   getEnumMeta,
@@ -29,7 +30,7 @@ const domain: Domain = { enums: {}, types: {}, services: {} };
 export const Course = (domain.types.Course = {
   ...metaBase("Course"),
   type: "model",
-  behaviorFlags: 7,
+  behaviorFlags: 7 as BehaviorFlags,
   get keyProp() {
     return this.props.courseId;
   },
@@ -92,7 +93,7 @@ export const Course = (domain.types.Course = {
 export const Advisor = (domain.types.Advisor = {
   ...metaBase("Advisor"),
   type: "model",
-  behaviorFlags: 7,
+  behaviorFlags: 7 as BehaviorFlags,
   get keyProp() {
     return this.props.advisorId;
   },
@@ -170,7 +171,7 @@ export const Advisor = (domain.types.Advisor = {
 export const Student = (domain.types.Student = {
   ...metaBase("Student"),
   type: "model",
-  behaviorFlags: 7,
+  behaviorFlags: 7 as BehaviorFlags,
   get displayProp() {
     return this.props.name;
   },