Steps in the right direction for animated date change

src/constants/EventTypes.ts

@@ -24,6 +24,7 @@ export const EventTypes = {
   // Navigation events
   WEEK_CHANGED: 'calendar:weekchanged',
   WEEK_INFO_UPDATED: 'calendar:weekinfoupdated',
+  WEEK_CONTENT_RENDERED: 'calendar:weekcontentrendered',
   NAV_PREV: 'calendar:navprev',
   NAV_NEXT: 'calendar:navnext',
   NAV_TODAY: 'calendar:navtoday',

src/managers/CalendarManager.ts

@@ -76,9 +76,9 @@ export class CalendarManager {
             this.setView(this.currentView);
             this.setCurrentDate(this.currentDate);
             
-            // Step 5: Render events (after view is set)
-            console.log('🎨 Rendering events...');
-            const events = this.eventManager.getEvents();
+            // Step 5: Render events (after view is set) - only render events for current period
+            console.log('🎨 Rendering events for current period...');
+            const events = this.getEventsForCurrentPeriod();
             await this.eventRenderer.renderEvents(events);
             
             this.isInitialized = true;
@@ -109,6 +109,11 @@ export class CalendarManager {
             currentView: view,
             date: this.currentDate
         });
+
+        // Re-render events for new view if calendar is initialized
+        if (this.isInitialized) {
+            this.rerenderEventsForCurrentPeriod();
+        }
     }
 
     /**
@@ -126,6 +131,11 @@ export class CalendarManager {
             currentDate: this.currentDate,
             view: this.currentView
         });
+
+        // Re-render events for new period if calendar is initialized
+        if (this.isInitialized) {
+            this.rerenderEventsForCurrentPeriod();
+        }
     }
 
     /**
@@ -302,4 +312,99 @@ export class CalendarManager {
         
         return previousDate;
     }
+
+    /**
+     * Get events filtered for the current period (week/month/day)
+     */
+    private getEventsForCurrentPeriod(): CalendarEvent[] {
+        const allEvents = this.eventManager.getEvents();
+        
+        // Calculate current period based on view
+        const period = this.calculateCurrentPeriod();
+        
+        // Filter events to only include those in the current period
+        const filteredEvents = allEvents.filter(event => {
+            const eventStart = new Date(event.start);
+            const eventEnd = new Date(event.end);
+            const periodStart = new Date(period.start);
+            const periodEnd = new Date(period.end);
+            
+            // Include event if it overlaps with the period
+            return eventStart <= periodEnd && eventEnd >= periodStart;
+        });
+        
+        // Also filter out all-day events (handled by GridManager)
+        const nonAllDayEvents = filteredEvents.filter(event => !event.allDay);
+        
+        console.log(`CalendarManager: Filtered ${allEvents.length} total events to ${nonAllDayEvents.length} non-all-day events for current period`);
+        
+        return nonAllDayEvents;
+    }
+
+    /**
+     * Calculate the current period based on view and date
+     */
+    private calculateCurrentPeriod(): { start: string; end: string } {
+        const current = new Date(this.currentDate);
+        
+        switch (this.currentView) {
+            case 'day':
+                const dayStart = new Date(current);
+                dayStart.setHours(0, 0, 0, 0);
+                const dayEnd = new Date(current);
+                dayEnd.setHours(23, 59, 59, 999);
+                return {
+                    start: dayStart.toISOString(),
+                    end: dayEnd.toISOString()
+                };
+                
+            case 'week':
+                // Find start of week (Monday)
+                const weekStart = new Date(current);
+                const dayOfWeek = weekStart.getDay();
+                const daysToMonday = dayOfWeek === 0 ? 6 : dayOfWeek - 1; // Sunday = 0, so 6 days back to Monday
+                weekStart.setDate(weekStart.getDate() - daysToMonday);
+                weekStart.setHours(0, 0, 0, 0);
+                
+                // Find end of week (Sunday)
+                const weekEnd = new Date(weekStart);
+                weekEnd.setDate(weekEnd.getDate() + 6);
+                weekEnd.setHours(23, 59, 59, 999);
+                
+                return {
+                    start: weekStart.toISOString(),
+                    end: weekEnd.toISOString()
+                };
+                
+            case 'month':
+                const monthStart = new Date(current.getFullYear(), current.getMonth(), 1);
+                const monthEnd = new Date(current.getFullYear(), current.getMonth() + 1, 0, 23, 59, 59, 999);
+                return {
+                    start: monthStart.toISOString(),
+                    end: monthEnd.toISOString()
+                };
+                
+            default:
+                // Fallback to week view
+                const fallbackStart = new Date(current);
+                fallbackStart.setDate(fallbackStart.getDate() - 3);
+                fallbackStart.setHours(0, 0, 0, 0);
+                const fallbackEnd = new Date(current);
+                fallbackEnd.setDate(fallbackEnd.getDate() + 3);
+                fallbackEnd.setHours(23, 59, 59, 999);
+                return {
+                    start: fallbackStart.toISOString(),
+                    end: fallbackEnd.toISOString()
+                };
+        }
+    }
+
+    /**
+     * Re-render events for the current period
+     */
+    private async rerenderEventsForCurrentPeriod(): Promise<void> {
+        console.log('CalendarManager: Re-rendering events for current period');
+        const events = this.getEventsForCurrentPeriod();
+        await this.eventRenderer.renderEvents(events);
+    }
 }

src/managers/DataManager.ts

@@ -113,6 +113,44 @@ export class DataManager {
     }
   }
 
+  /**
+   * Filter events to only include those within the specified period
+   */
+  public filterEventsForPeriod(events: CalendarEvent[], period: Period): CalendarEvent[] {
+    const startDate = new Date(period.start);
+    const endDate = new Date(period.end);
+    
+    return events.filter(event => {
+      const eventStart = new Date(event.start);
+      const eventEnd = new Date(event.end);
+      
+      // Include event if it overlaps with the period
+      return eventStart <= endDate && eventEnd >= startDate;
+    });
+  }
+
+  /**
+   * Get events filtered by period and optionally by all-day status
+   */
+  public getFilteredEvents(period: Period, excludeAllDay: boolean = false): CalendarEvent[] {
+    const cacheKey = `${period.start}-${period.end}`;
+    const cachedData = this.cache.get(cacheKey);
+    
+    if (!cachedData) {
+      console.warn('DataManager: No cached data found for period', period);
+      return [];
+    }
+    
+    let filteredEvents = this.filterEventsForPeriod(cachedData.events, period);
+    
+    if (excludeAllDay) {
+      filteredEvents = filteredEvents.filter(event => !event.allDay);
+      console.log(`DataManager: Filtered out all-day events, ${filteredEvents.length} non-all-day events remaining`);
+    }
+    
+    return filteredEvents;
+  }
+
   /**
    * Create a new event
    */
@@ -270,7 +308,7 @@ export class DataManager {
   }
 
   /**
-   * Generate mock data for testing
+   * Generate mock data for testing - only generates events within the specified period
    */
   private getMockData(period: Period): EventData {
     const events: CalendarEvent[] = [];
@@ -282,11 +320,13 @@ export class DataManager {
       milestone: ['Project Deadline', 'Release Day', 'Demo Day']
     };
 
-    // Parse dates
+    // Parse dates - only generate events within this exact period
     const startDate = new Date(period.start);
     const endDate = new Date(period.end);
     
-    // Generate some events for each day
+    console.log(`DataManager: Generating mock events for period ${period.start} to ${period.end}`);
+    
+    // Generate some events for each day within the period
     for (let d = new Date(startDate); d <= endDate; d.setDate(d.getDate() + 1)) {
       // Skip weekends for most events
       const dayOfWeek = d.getDay();

src/managers/EventManager.ts

@@ -20,8 +20,9 @@ export class EventManager {
     }
 
     private setupEventListeners(): void {
-        // Keep only UI-related event listeners here if needed
-        // Data loading is now handled via direct method calls
+        // NOTE: Removed POC event listener to prevent interference with production code
+        // POC sliding animation should not trigger separate event rendering
+        // this.eventBus.on(EventTypes.WEEK_CONTENT_RENDERED, ...);
     }
 
     /**
@@ -170,6 +171,82 @@ export class EventManager {
         this.syncEvents();
     }
 
+    /**
+     * Load events for a specific week into a container (POC-style)
+     */
+    private loadEventsForWeek(weekStart: Date, weekEnd: Date, container: HTMLElement): void {
+        console.log(`EventManager: Loading events for week ${weekStart.toDateString()} - ${weekEnd.toDateString()}`);
+        
+        // Filter events for this week
+        const weekEvents = this.events.filter(event => {
+            const eventDate = new Date(event.start);
+            return eventDate >= weekStart && eventDate <= weekEnd;
+        });
+        
+        console.log(`EventManager: Found ${weekEvents.length} events for this week`);
+        
+        // Render events in the container (POC approach)
+        this.renderEventsInContainer(weekEvents, container);
+    }
+
+    /**
+     * Render events in a specific container (POC-style)
+     */
+    private renderEventsInContainer(events: CalendarEvent[], container: HTMLElement): void {
+        const dayColumns = container.querySelectorAll('swp-day-column');
+        
+        events.forEach(event => {
+            const eventDate = new Date(event.start);
+            const dayOfWeek = eventDate.getDay(); // 0 = Sunday
+            const column = dayColumns[dayOfWeek];
+            
+            if (column) {
+                const eventsLayer = column.querySelector('swp-events-layer');
+                if (eventsLayer) {
+                    this.renderEventInColumn(event, eventsLayer as HTMLElement);
+                }
+            }
+        });
+    }
+
+    /**
+     * Render a single event in a column (POC-style)
+     */
+    private renderEventInColumn(event: CalendarEvent, eventsLayer: HTMLElement): void {
+        const eventElement = document.createElement('swp-event');
+        eventElement.dataset.type = event.type || 'meeting';
+        
+        // Calculate position (simplified - assumes 7 AM start like POC)
+        const startTime = new Date(event.start);
+        const hours = startTime.getHours();
+        const minutes = startTime.getMinutes();
+        const startMinutes = (hours - 7) * 60 + minutes; // 7 is start hour like POC
+        
+        // Calculate duration
+        const endTime = new Date(event.end);
+        const durationMs = endTime.getTime() - startTime.getTime();
+        const durationMinutes = Math.floor(durationMs / (1000 * 60));
+        
+        eventElement.style.top = `${startMinutes}px`;
+        eventElement.style.height = `${durationMinutes}px`;
+        
+        eventElement.innerHTML = `
+            <swp-event-time>${this.formatTime(hours, minutes)}</swp-event-time>
+            <swp-event-title>${event.title}</swp-event-title>
+        `;
+        
+        eventsLayer.appendChild(eventElement);
+    }
+
+    /**
+     * Format time for display (POC-style)
+     */
+    private formatTime(hours: number, minutes: number): string {
+        const period = hours >= 12 ? 'PM' : 'AM';
+        const displayHours = hours % 12 || 12;
+        return `${displayHours}:${String(minutes).padStart(2, '0')} ${period}`;
+    }
+
     public destroy(): void {
         this.events = [];
     }

src/managers/NavigationManager.ts

@@ -112,28 +112,65 @@ export class NavigationManager {
     }
   }
 
+  /**
+   * POC-style animation transition - creates new grid container and slides it in
+   */
   private animateTransition(direction: 'prev' | 'next', targetWeek: Date): void {
-    const calendarContainer = document.querySelector('swp-calendar-container');
+    const container = document.querySelector('swp-calendar-container');
+    const currentGrid = container?.querySelector('swp-grid-container');
     
-    if (!calendarContainer) {
-      console.warn('NavigationManager: Calendar container not found');
+    if (!container || !currentGrid) {
+      console.warn('NavigationManager: Required DOM elements not found');
       return;
     }
 
-    // Add transition class for visual feedback
-    calendarContainer.classList.add('week-transition');
+    console.log(`NavigationManager: Starting ${direction} animation to ${targetWeek.toDateString()}`);
 
-    // Brief fade effect
-    setTimeout(() => {
-      calendarContainer.classList.add('week-transition-out');
+    // Create new grid container (POC approach)
+    const newGrid = document.createElement('swp-grid-container');
+    newGrid.innerHTML = `
+      <swp-calendar-header></swp-calendar-header>
+      <swp-scrollable-content>
+        <swp-time-grid>
+          <swp-grid-lines></swp-grid-lines>
+          <swp-day-columns></swp-day-columns>
+        </swp-time-grid>
+      </swp-scrollable-content>
+    `;
 
-      // Update the week after fade starts
+    // Position new grid off-screen (POC positioning)
+    newGrid.style.position = 'absolute';
+    newGrid.style.top = '0';
+    newGrid.style.left = '0';
+    newGrid.style.width = '100%';
+    newGrid.style.height = '100%';
+    newGrid.style.transform = direction === 'next' ? 'translateX(100%)' : 'translateX(-100%)';
+
+    // Add to container
+    container.appendChild(newGrid);
+
+    // Render new content for target week
+    this.renderWeekContent(newGrid, targetWeek);
+
+    // Animate transition (POC animation)
+    requestAnimationFrame(() => {
+      // Slide out current grid
+      (currentGrid as HTMLElement).style.transform = direction === 'next' ? 'translateX(-100%)' : 'translateX(100%)';
+      (currentGrid as HTMLElement).style.opacity = '0.5';
+      
+      // Slide in new grid
+      newGrid.style.transform = 'translateX(0)';
+      
+      // Clean up after animation (POC cleanup)
       setTimeout(() => {
-        // Update currentWeek
+        currentGrid.remove();
+        newGrid.style.position = 'relative';
+        
+        // Update currentWeek only after animation is complete (POC logic)
         this.currentWeek = new Date(targetWeek);
         this.animationQueue--;
         
-        // If this was the last queued animation, ensure we're in sync
+        // If this was the last queued animation, ensure we're in sync (POC sync)
         if (this.animationQueue === 0) {
           this.currentWeek = new Date(this.targetWeek);
         }
@@ -145,13 +182,70 @@ export class NavigationManager {
           weekEnd: DateUtils.addDays(this.currentWeek, 6)
         });
         
-        // Remove transition classes
-        setTimeout(() => {
-          calendarContainer.classList.remove('week-transition', 'week-transition-out');
-        }, 150);
+        console.log(`NavigationManager: Completed ${direction} animation`);
+      }, 400); // Match POC timing
+    });
+  }
 
-      }, 150); // Half of transition duration
-    }, 50);
+  /**
+   * Render week content in the new grid container
+   */
+  private renderWeekContent(gridContainer: HTMLElement, weekStart: Date): void {
+    const header = gridContainer.querySelector('swp-calendar-header');
+    const dayColumns = gridContainer.querySelector('swp-day-columns');
+    
+    if (!header || !dayColumns) return;
+
+    // Clear existing content
+    header.innerHTML = '';
+    dayColumns.innerHTML = '';
+
+    // Render headers for target week
+    const days = ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'];
+    for (let i = 0; i < 7; i++) {
+      const date = new Date(weekStart);
+      date.setDate(date.getDate() + i);
+      
+      const headerElement = document.createElement('swp-day-header');
+      if (this.isToday(date)) {
+        headerElement.dataset.today = 'true';
+      }
+      
+      headerElement.innerHTML = `
+        <swp-day-name>${days[date.getDay()]}</swp-day-name>
+        <swp-day-date>${date.getDate()}</swp-day-date>
+      `;
+      headerElement.dataset.date = this.formatDate(date);
+      
+      header.appendChild(headerElement);
+    }
+    
+    // Render day columns for target week
+    for (let i = 0; i < 7; i++) {
+      const column = document.createElement('swp-day-column');
+      const date = new Date(weekStart);
+      date.setDate(date.getDate() + i);
+      column.dataset.date = this.formatDate(date);
+      
+      const eventsLayer = document.createElement('swp-events-layer');
+      column.appendChild(eventsLayer);
+      
+      dayColumns.appendChild(column);
+    }
+
+    // NOTE: Removed POC event emission to prevent interference with production code
+    // POC events should not trigger production event rendering
+    // this.eventBus.emit(EventTypes.WEEK_CONTENT_RENDERED, { ... });
+  }
+
+  // Utility functions (from POC)
+  private formatDate(date: Date): string {
+    return `${date.getFullYear()}-${String(date.getMonth() + 1).padStart(2, '0')}-${String(date.getDate()).padStart(2, '0')}`;
+  }
+
+  private isToday(date: Date): boolean {
+    const today = new Date();
+    return date.toDateString() === today.toDateString();
   }
 
   private updateWeekInfo(): void {

src/renderers/EventRenderer.ts

@@ -25,12 +25,11 @@ export abstract class BaseEventRenderer implements EventRendererStrategy {
     // Clear existing events first
     this.clearEvents();
 
-    // Filter out all-day events (handled by GridManager)
-    const nonAllDayEvents = events.filter(event => !event.allDay);
-    console.log('BaseEventRenderer: Rendering', nonAllDayEvents.length, 'non-all-day events');
+    // Events should already be filtered by DataManager - no need to filter here
+    console.log('BaseEventRenderer: Rendering', events.length, 'pre-filtered events');
 
     // Render each event in the correct column
-    nonAllDayEvents.forEach(event => {
+    events.forEach(event => {
       const column = this.findColumn(event);
       
       if (column) {
@@ -166,13 +165,14 @@ export class DateEventRenderer extends BaseEventRenderer {
  */
 export class ResourceEventRenderer extends BaseEventRenderer {
   findColumn(event: CalendarEvent): HTMLElement | null {
-    if (!event.resourceName) {
-      console.warn('ResourceEventRenderer: Event has no resourceName', event);
+    const resourceName = event.resource?.name;
+    if (!resourceName) {
+      console.warn('ResourceEventRenderer: Event has no resource.name', event);
       return null;
     }
 
-    const resourceColumn = document.querySelector(`swp-resource-column[data-resource="${event.resourceName}"]`) as HTMLElement;
-    console.log('ResourceEventRenderer: Looking for resource column with name', event.resourceName, 'found:', !!resourceColumn);
+    const resourceColumn = document.querySelector(`swp-resource-column[data-resource="${resourceName}"]`) as HTMLElement;
+    console.log('ResourceEventRenderer: Looking for resource column with name', resourceName, 'found:', !!resourceColumn);
     return resourceColumn;
   }
 }

wwwroot/css/calendar-sliding-animation.css

@@ -0,0 +1,24 @@
+/* POC-style Calendar Sliding Animation CSS */
+
+/* Grid container base styles */
+swp-grid-container {
+    position: relative;
+    width: 100%;
+    transition: transform 400ms cubic-bezier(0.4, 0, 0.2, 1);
+    will-change: transform;
+    backface-visibility: hidden;
+    transform: translateZ(0); /* GPU acceleration */
+}
+
+/* Calendar container for sliding */
+swp-calendar-container {
+    position: relative;
+    overflow: hidden;
+}
+
+/* Accessibility: Respect reduced motion preference */
+@media (prefers-reduced-motion: reduce) {
+    swp-grid-container {
+        transition: none;
+    }
+}