Open Event dialog right below the day pointed to.

src/components/BaseDialog.vue

@@ -6,6 +6,9 @@ const props = defineProps({
   title: { type: String, default: '' },
   draggable: { type: Boolean, default: true },
   autoFocus: { type: Boolean, default: true },
+  // Optional external anchor element (e.g., a day cell) to position the dialog below.
+  // If not provided, falls back to internal anchorRef span (original behavior).
+  anchorEl: { type: Object, default: null },
 })
 
 const emit = defineEmits(['update:modelValue', 'opened', 'closed', 'submit'])
@@ -97,17 +100,17 @@ onMounted(() => document.addEventListener('keydown', handleKeydown))
 onUnmounted(() => document.removeEventListener('keydown', handleKeydown))
 
 function positionNearAnchor() {
-  if (!anchorRef.value) return
-  const rect = anchorRef.value.getBoundingClientRect()
-  // Place dialog below anchor with small vertical offset
-  const offsetY = 8
-  // Need dialog dimensions to clamp correctly; measure current or fallback estimates
+  const anchor = props.anchorEl || anchorRef.value
+  if (!anchor) return
+  const rect = anchor.getBoundingClientRect()
+  const offsetY = 8 // vertical gap below the anchor
   const w = modalRef.value?.offsetWidth || dialogWidth.value || 320
   const h = modalRef.value?.offsetHeight || dialogHeight.value || 200
   const vw = window.innerWidth
   const vh = window.innerHeight
   let x = rect.left
   let y = rect.bottom + offsetY
+  // If anchor is wider than dialog and would overflow right edge, clamp; otherwise keep left align
   x = clamp(x, margin, Math.max(margin, vw - w - margin))
   y = clamp(y, margin, Math.max(margin, vh - h - margin))
   modalPosition.value = { x, y }
@@ -132,6 +135,16 @@ watch(
   },
 )
 
+// Reposition if anchorEl changes while open and user hasn't dragged dialog yet
+watch(
+  () => props.anchorEl,
+  () => {
+    if (props.modelValue && !hasMoved.value) {
+      nextTick(() => positionNearAnchor())
+    }
+  },
+)
+
 function handleResize() {
   if (!props.modelValue) return
   // Re-clamp current position, and if not moved recalc near anchor

src/components/EventDialog.vue

@@ -23,6 +23,8 @@ const emit = defineEmits(['clear-selection'])
 const calendarStore = useCalendarStore()
 
 const showDialog = ref(false)
+// Anchoring: element of the DayCell representing the event's start date.
+const anchorElement = ref(null)
 const dialogMode = ref('create') // 'create' or 'edit'
 const editingEventId = ref(null)
 const unsavedCreateId = ref(null)
@@ -191,6 +193,12 @@ function loadWeekdayPatternFromStore(storePattern) {
   recurrenceWeekdays.value = [...storePattern]
 }
 
+function resolveAnchorFromDate(dateStr) {
+  if (!dateStr) return null
+  // Expect day cells to have data-date attribute (see CalendarDay / DayCell components)
+  return document.querySelector(`[data-date='${dateStr}']`)
+}
+
 function openCreateDialog(selectionData = null) {
   calendarStore.$history?.beginCompound()
   if (unsavedCreateId.value && !eventSaved.value) {
@@ -240,6 +248,8 @@ function openCreateDialog(selectionData = null) {
   })
   unsavedCreateId.value = editingEventId.value
 
+  // anchor to the starting day cell
+  anchorElement.value = resolveAnchorFromDate(start)
   showDialog.value = true
 
   nextTick(() => {
@@ -344,6 +354,8 @@ function openEditDialog(payload) {
       occurrenceContext.value = { baseId, occurrenceIndex, weekday: null, occurrenceDate }
     }
   }
+  // anchor to base event start date
+  anchorElement.value = resolveAnchorFromDate(event.startDate)
   showDialog.value = true
 
   nextTick(() => {
@@ -553,7 +565,7 @@ const recurrenceSummary = computed(() => {
 </script>
 
 <template>
-  <BaseDialog v-model="showDialog" @submit="saveEvent">
+  <BaseDialog v-model="showDialog" :anchor-el="anchorElement" @submit="saveEvent">
     <template #title>
       {{ dialogMode === 'create' ? 'Create Event' : 'Edit Event'
       }}<template v-if="headerDateShort"> · {{ headerDateShort }}</template>