Improves all-day event layout and drag behavior

Refactors all-day event layout calculation and rendering for improved accuracy and performance.

Improves drag-and-drop behavior for all-day events, ensuring correct event placement and column detection.

Addresses issues with event overflow display and provides a more responsive user experience.

src/managers/AllDayManager.ts

@@ -54,7 +54,6 @@ export class AllDayManager {
       });
 
       this.handleConvertToAllDay(payload); 
-      this.checkAndAnimateAllDayHeight();
     });
 
     eventBus.on('drag:mouseleave-header', (event) => {
@@ -64,7 +63,7 @@ export class AllDayManager {
         originalElementId: originalElement?.dataset?.eventId
       });
 
-      this.checkAndAnimateAllDayHeight();
+      //this.checkAndAnimateAllDayHeight();
     });
 
     // Listen for drag operations on all-day events
@@ -117,15 +116,8 @@ export class AllDayManager {
         reason
       });
 
-      // Recalculate all-day height since clones may have been removed
-      this.checkAndAnimateAllDayHeight();
     });
 
-    // Listen for height check requests from EventRendererManager
-    eventBus.on('allday:checkHeight', () => {
-      console.log('📏 AllDayManager: Received allday:checkHeight request');
-      this.checkAndAnimateAllDayHeight();
-    });
   }
 
   private getAllDayContainer(): HTMLElement | null {
@@ -313,7 +305,19 @@ export class AllDayManager {
     return layoutEngine.calculateLayout(events);
 
   }
+  public initAllDayEventsLayout(events: CalendarEvent[], weekDates: string[]): EventLayout[] {
 
+    // Store current state
+    this.currentAllDayEvents = events;
+    this.currentWeekDates = weekDates;
+
+    // Initialize layout engine with provided week dates
+    var layoutEngine = new AllDayLayoutEngine(weekDates);
+
+    // Calculate layout for all events together - AllDayLayoutEngine handles CalendarEvents directly
+    this.currentLayouts = layoutEngine.calculateLayout(events);
+    return this.currentLayouts;
+  }
 
   /**
    * Handle conversion of timed event to all-day event - SIMPLIFIED
@@ -412,12 +416,8 @@ export class AllDayManager {
     if (dragEndEvent.draggedClone == null)
       return;
 
-
     // 2. Normalize clone ID
-    const cloneId = dragEndEvent.draggedClone?.dataset.eventId;
-    if (cloneId?.startsWith('clone-')) {
-      dragEndEvent.draggedClone.dataset.eventId = cloneId.replace('clone-', '');
-    }
+    dragEndEvent.draggedClone.dataset.eventId = dragEndEvent.draggedClone.dataset.eventId?.replace('clone-', '');
 
     // 3. Create temporary array with existing events + the dropped event
     let eventId = dragEndEvent.draggedClone.dataset.eventId;
@@ -430,7 +430,7 @@ export class AllDayManager {
 
     const droppedEvent: CalendarEvent = {
       id: eventId,
-      title: dragEndEvent.draggedClone.dataset.title || dragEndEvent.draggedClone.textContent || '',
+      title: dragEndEvent.draggedClone.dataset.title|| '',
       start: new Date(eventDate),
       end: new Date(eventDate),
       type: eventType,
@@ -449,16 +449,14 @@ export class AllDayManager {
     this.newLayouts.forEach((layout) => {
       // Find current layout for this event
       var currentLayout = this.currentLayouts.find(old => old.calenderEvent.id === layout.calenderEvent.id);
-      var currentGridArea = currentLayout?.gridArea;
-      var newGridArea = layout.gridArea;
 
-      if (currentGridArea !== newGridArea) {
+      if (currentLayout?.gridArea !== layout.gridArea) {
         changedCount++;
         const element = dragEndEvent.draggedClone;
         if (element) {
           // Add transition class for smooth animation
           element.classList.add('transitioning');
-          element.style.gridArea = newGridArea;
+          element.style.gridArea = layout.gridArea;
           element.style.gridRow = layout.row.toString();
           element.style.gridColumn = `${layout.startColumn} / ${layout.endColumn + 1}`;
 
@@ -546,23 +544,26 @@ export class AllDayManager {
     const container = this.getAllDayContainer();
     if (!container) return;
 
-    container.querySelectorAll('swp-event').forEach((element) => {
-      const event = element as HTMLElement;
-      const gridRow = parseInt(event.style.gridRow) || 1;
+    // Create overflow indicators for each column that needs them
+    var columns = ColumnDetectionUtils.getColumns();
 
-      if (gridRow === 4) {
+    columns.forEach((columnBounds) => {
+      var totalEventsInColumn = this.countEventsInColumn(columnBounds);
+      var overflowCount = Math.max(0, totalEventsInColumn - 3);
 
-        // Convert row 4 events to indicators
-        const overflowCount = this.actualRowCount - 3; // Total overflow rows
-        event.classList.add('max-event-overflow');
-        event.innerHTML = `<span>+${overflowCount} more</span>`;
-        event.onclick = (e) => {
+      if (overflowCount > 0) {
+        // Create new overflow indicator element
+        var overflowElement = document.createElement('swp-event');
+        overflowElement.className = 'max-event-overflow';
+        overflowElement.style.gridRow = '4';
+        overflowElement.style.gridColumn = columnBounds.index.toString();
+        overflowElement.innerHTML = `<span>+${overflowCount} more</span>`;
+        overflowElement.onclick = (e) => {
           e.stopPropagation();
           this.toggleExpanded();
         };
-      } else if (gridRow > 4) {
-        // Hide events beyond row 4
-        event.style.display = 'none';
+
+        container.appendChild(overflowElement);
       }
     });
   }
@@ -574,21 +575,12 @@ export class AllDayManager {
     const container = this.getAllDayContainer();
     if (!container) return;
 
-    container.querySelectorAll('.max-event-overflow').forEach((event) => {
-      const htmlEvent = event as HTMLElement;
-      htmlEvent.classList.remove('max-event-overflow');
-      htmlEvent.onclick = null;
-
-      // Restore original title from data-title
-      if (htmlEvent.dataset.title) {
-        htmlEvent.innerHTML = htmlEvent.dataset.title;
-      } 
+    // Remove all overflow indicator elements
+    container.querySelectorAll('.max-event-overflow').forEach((element) => {
+      element.remove();
     });
 
-    // Show all hidden events
-    container.querySelectorAll('swp-event[style*="display: none"]').forEach((event) => {
-      (event as HTMLElement).style.display = '';
-    });
+
   }
 
 }

src/managers/DragDropManager.ts

@@ -243,8 +243,10 @@ export class DragDropManager {
 
         // Check for column change using cached data
         const newColumn = ColumnDetectionUtils.getColumnBounds(currentPosition);
+        if (newColumn == null)
+          return;
 
-        if (newColumn && newColumn !== this.currentColumnBounds) {
+        if (newColumn?.index !== this.currentColumnBounds?.index) {
           const previousColumn = this.currentColumnBounds;
           this.currentColumnBounds = newColumn;
 
@@ -279,7 +281,7 @@ export class DragDropManager {
         // Detect drop target (swp-day-column or swp-day-header)
         const dropTarget = this.detectDropTarget(mousePosition);
 
-        if(!dropTarget)
+        if (!dropTarget)
           throw "dropTarget is null";
 
         console.log('🎯 DragDropManager: Emitting drag:end', {
@@ -300,6 +302,8 @@ export class DragDropManager {
         this.eventBus.emit('drag:end', dragEndPayload);
         
         
+        this.draggedElement = null;
+
       } else {
         // This was just a click - emit click event instead
         this.eventBus.emit('event:click', {

src/renderers/EventRendererManager.ts

@@ -371,15 +371,13 @@ export class EventRenderingService {
         // Pass current events to AllDayManager for state tracking
         this.allDayManager.setCurrentEvents(allDayEvents, weekDates);
 
-        const layouts = this.allDayManager.calculateAllDayEventsLayout(allDayEvents, weekDates);
+        const layouts = this.allDayManager.initAllDayEventsLayout(allDayEvents, weekDates);
 
         // Render each all-day event with pre-calculated layout
         layouts.forEach(layout => {
             this.allDayEventRenderer.renderAllDayEventWithLayout(layout.calenderEvent, layout);
         });
 
-        // Check and adjust all-day container height after rendering
-        this.eventBus.emit('allday:checkHeight');
     }
 
     /**

src/types/EventPayloadMap.ts

@@ -135,7 +135,6 @@ export interface CalendarEventPayloadMap {
   };
   
   // All-day events
-  'allday:checkHeight': undefined;
   'allday:convert-to-allday': {
     eventId: string;
     element: HTMLElement;

src/utils/ColumnDetectionUtils.ts

@@ -83,17 +83,8 @@ export class ColumnDetectionUtils {
         return column || null;
     }
 
-    /**
-     * Clear cache (useful for testing or when DOM structure changes)
-     */
-    public static clearCache(): void {
-        this.columnBoundsCache = [];
-    }
   
-    /**
-     * Get current cache for debugging
-     */
-    public static getCache(): ColumnBounds[] {
+    public static getColumns(): ColumnBounds[] {
         return [...this.columnBoundsCache];
     }
 }