Refactors grid layout for scrollbar implementation

Updates the grid structure to correctly position the scrollbars.

Replaces fixed scrollbars with a grid-based layout using spacers and
a right column for a more integrated and maintainable solution.
This change addresses layout issues related to scrollbar positioning
and ensures better alignment across different browsers.

src/managers/GridManager.ts

@@ -117,12 +117,13 @@ export class GridManager {
     // Clear existing grid and rebuild POC structure
     this.grid.innerHTML = '';
     
-    // Create POC structure: header-spacer + time-axis + week-container + fixed scrollbars
+    // Create POC structure: header-spacer + time-axis + week-container + right-column + bottom spacers
     this.createHeaderSpacer();
+    this.createRightHeaderSpacer();
     this.createTimeAxis();
     this.createWeekContainer();
+    this.createRightColumn();
     this.createBottomRow();
-    this.createFixedScrollbars();
     
     console.log('GridManager: Grid rendered successfully with POC structure');
   }
@@ -138,24 +139,26 @@ export class GridManager {
   }
 
   /**
-   * Create fixed scrollbars at browser edges
+   * Create right header spacer for scrollbar alignment
    */
-  private createFixedScrollbars(): void {
-    if (!document.body) return;
+  private createRightHeaderSpacer(): void {
+    if (!this.grid) return;
 
-    // Create right scrollbar at browser edge
-    const rightScrollbar = document.createElement('swp-right-scrollbar');
-    const rightColumn = document.createElement('swp-right-column');
-    rightScrollbar.appendChild(rightColumn);
-    document.body.appendChild(rightScrollbar);
-
-    // Create bottom scrollbar at browser edge
-    const bottomScrollbar = document.createElement('swp-bottom-scrollbar');
-    const bottomColumn = document.createElement('swp-bottom-column');
-    bottomScrollbar.appendChild(bottomColumn);
-    document.body.appendChild(bottomScrollbar);
+    const rightHeaderSpacer = document.createElement('swp-right-header-spacer');
+    this.grid.appendChild(rightHeaderSpacer);
   }
 
+  /**
+   * Create right column for scrollbar area
+   */
+  private createRightColumn(): void {
+    if (!this.grid) return;
+
+    const rightColumn = document.createElement('swp-right-column');
+    this.grid.appendChild(rightColumn);
+  }
+
+
   /**
    * Create time axis (positioned beside week container) like in POC
    */
@@ -210,7 +213,7 @@ export class GridManager {
   }
 
   /**
-   * Create bottom row with spacer
+   * Create bottom row with spacers
    */
   private createBottomRow(): void {
     if (!this.grid) return;
@@ -218,6 +221,14 @@ export class GridManager {
     // Bottom spacer (left)
     const bottomSpacer = document.createElement('swp-bottom-spacer');
     this.grid.appendChild(bottomSpacer);
+
+    // Bottom middle spacer
+    const bottomMiddleSpacer = document.createElement('swp-bottom-middle-spacer');
+    this.grid.appendChild(bottomMiddleSpacer);
+
+    // Right bottom spacer
+    const rightBottomSpacer = document.createElement('swp-right-bottom-spacer');
+    this.grid.appendChild(rightBottomSpacer);
   }
 
   /**

src/managers/ScrollManager.ts

@@ -22,7 +22,7 @@ export class ScrollManager {
   private handleHeight: number = 40;
 
   // Horizontal scrolling
-  private bottomColumn: HTMLElement | null = null;
+  private bottomMiddleSpacer: HTMLElement | null = null;
   private horizontalScrollHandle: HTMLElement | null = null;
   private weekHeader: HTMLElement | null = null;
   private isHorizontalDragging: boolean = false;
@@ -73,7 +73,7 @@ export class ScrollManager {
     }
 
     // Setup horizontal scrolling
-    if (this.bottomColumn && this.scrollableContent && this.weekHeader) {
+    if (this.bottomMiddleSpacer && this.scrollableContent && this.weekHeader) {
       this.createHorizontalScrollHandle();
       this.setupHorizontalScrollSynchronization();
       this.calculateHorizontalScrollBounds();
@@ -91,12 +91,12 @@ export class ScrollManager {
     this.timeAxis = document.querySelector('swp-time-axis');
     
     // Horizontal scrolling elements
-    this.bottomColumn = document.querySelector('swp-bottom-column');
+    this.bottomMiddleSpacer = document.querySelector('swp-bottom-middle-spacer');
     this.weekHeader = document.querySelector('swp-week-header');
     
     console.log('ScrollManager: Found elements:', {
       rightColumn: !!this.rightColumn,
-      bottomColumn: !!this.bottomColumn,
+      bottomMiddleSpacer: !!this.bottomMiddleSpacer,
       scrollableContent: !!this.scrollableContent,
       weekHeader: !!this.weekHeader
     });
@@ -399,13 +399,13 @@ export class ScrollManager {
   }
 
   /**
-   * Create and add horizontal scroll handle to bottom column
+   * Create and add horizontal scroll handle to bottom middle spacer
    */
   private createHorizontalScrollHandle(): void {
-    if (!this.bottomColumn) return;
+    if (!this.bottomMiddleSpacer) return;
 
     // Remove existing handle if any
-    const existingHandle = this.bottomColumn.querySelector('swp-horizontal-scroll-handle');
+    const existingHandle = this.bottomMiddleSpacer.querySelector('swp-horizontal-scroll-handle');
     if (existingHandle) {
       existingHandle.remove();
     }
@@ -414,14 +414,14 @@ export class ScrollManager {
     this.horizontalScrollHandle = document.createElement('swp-horizontal-scroll-handle');
     this.horizontalScrollHandle.addEventListener('mousedown', this.handleHorizontalMouseDown.bind(this));
     
-    this.bottomColumn.appendChild(this.horizontalScrollHandle);
+    this.bottomMiddleSpacer.appendChild(this.horizontalScrollHandle);
   }
 
   /**
    * Calculate horizontal scroll bounds based on content and container widths
    */
   private calculateHorizontalScrollBounds(): void {
-    if (!this.scrollableContent || !this.bottomColumn) return;
+    if (!this.scrollableContent || !this.bottomMiddleSpacer) return;
 
     const contentWidth = this.scrollableContent.scrollWidth;
     const containerWidth = this.scrollableContent.clientWidth;

wwwroot/css/calendar-layout-css.css

@@ -39,7 +39,7 @@ swp-calendar-nav {
 swp-calendar-container {
   flex: 1;
   display: grid;
-  grid-template-columns: 60px 1fr;
+  grid-template-columns: 60px 1fr 20px;
   grid-template-rows: auto 1fr 20px;
   overflow: hidden;
   position: relative;
@@ -58,22 +58,22 @@ swp-header-spacer {
   position: relative;
 }
 
-/* Right scrollbar - positioned at browser edge */
-swp-right-scrollbar {
-  position: fixed;
-  top: 0;
-  right: 0;
-  width: 20px;
-  height: 100vh;
-  background: #f0f0f0;
-  border-left: 2px solid #333;
-  z-index: 1000;
-  overflow: hidden;
+
+/* Right header spacer for scrollbar alignment */
+swp-right-header-spacer {
+  grid-column: 3;
+  grid-row: 1;
+  height: 80px; /* Same as week header height */
+  background: var(--color-surface);
+  border-left: 1px solid var(--color-border);
+  border-bottom: 1px solid var(--color-border);
+  z-index: 5; /* Higher than time-axis to cover it when scrolling */
+  position: relative;
 }
 
 /* Week container for sliding */
 swp-week-container {
-  grid-column: 2;
+  grid-column: 2 / 4; /* Span across columns 2-3 to include right spacer area */
   grid-row: 1 / 3;
   display: grid;
   grid-template-rows: auto 1fr;
@@ -82,6 +82,16 @@ swp-week-container {
   transition: transform 400ms cubic-bezier(0.4, 0, 0.2, 1);
 }
 
+/* Right column for scrollbar */
+swp-right-column {
+  grid-column: 3;
+  grid-row: 2;
+  background: #f0f0f0;
+  border-left: 2px solid #333;
+  position: relative;
+  overflow: hidden;
+}
+
 /* Time axis */
 swp-time-axis {
   grid-column: 1;
@@ -96,14 +106,14 @@ swp-time-axis {
   flex-direction: column;
 }
 
-/* Right column - now part of fixed scrollbar */
-swp-right-column {
-  position: absolute;
-  top: 80px; /* Below navigation */
-  left: 0;
-  right: 0;
-  bottom: 20px; /* Above horizontal scrollbar */
-  background: transparent;
+/* Right bottom spacer */
+swp-right-bottom-spacer {
+  grid-column: 3;
+  grid-row: 3;
+  height: 20px;
+  background: var(--color-surface);
+  border-left: 1px solid var(--color-border);
+  border-top: 1px solid var(--color-border);
 }
 
 /* Scroll handle */
@@ -138,27 +148,16 @@ swp-bottom-spacer {
   border-top: 1px solid var(--color-border);
 }
 
-/* Bottom scrollbar - positioned at browser edge */
-swp-bottom-scrollbar {
-  position: fixed;
-  bottom: 0;
-  left: 0;
-  right: 20px; /* Leave space for vertical scrollbar */
+/* Bottom middle spacer */
+swp-bottom-middle-spacer {
+  grid-column: 2;
+  grid-row: 3;
   height: 20px;
   background: #f0f0f0;
   border-top: 2px solid #333;
-  z-index: 1000;
   overflow: hidden;
 }
 
-swp-bottom-column {
-  position: absolute;
-  top: 0;
-  left: 60px; /* Start after time-axis */
-  right: 0;
-  bottom: 0;
-  background: transparent;
-}
 
 /* Horizontal scroll handle */
 swp-horizontal-scroll-handle {