feat(pdf-viewer): enhance PDF viewer with file size display and footer layout

ts_web/elements/00group-media/dees-pdf-viewer/component.ts

@@ -3,6 +3,7 @@ import { PdfManager } from '../dees-pdf-shared/PdfManager.js';
 import { viewerStyles } from './styles.js';
 import { demo as demoFunc } from './demo.js';
 import '../../00group-utility/dees-icon/dees-icon.js';
+import '../../00group-layout/dees-tile/dees-tile.js';
 
 declare global {
   interface HTMLElementTagNameMap {
@@ -54,6 +55,9 @@ export class DeesPdfViewer extends DeesElement {
   @property({ type: Array })
   accessor pageData: Array<{page: number, rendered: boolean, rendering: boolean, textLayerRendered: boolean}> = [];
 
+  @property({ type: Number })
+  accessor pdfFileSize: number = 0;
+
   private pdfDocument: any;
   private renderState: RenderState = 'idle';
   private renderAbortController: AbortController | null = null;
@@ -85,9 +89,9 @@ export class DeesPdfViewer extends DeesElement {
 
   public render(): TemplateResult {
     return html`
-      <div class="pdf-viewer ${this.showSidebar ? 'with-sidebar' : ''}">
+      <dees-tile class="${this.showSidebar ? 'with-sidebar' : ''}">
         ${this.showToolbar ? html`
-          <div class="toolbar">
+          <div slot="header" class="toolbar">
             <div class="toolbar-group">
               <button
                 class="toolbar-button"
@@ -240,7 +244,23 @@ export class DeesPdfViewer extends DeesElement {
             `}
           </div>
         </div>
-      </div>
+        <div slot="footer" class="pdf-footer">
+          <div class="pdf-footer-left">
+            <span class="pdf-footer-item">Zoom ${Math.round(this.currentZoom * 100)}%</span>
+            ${this.pdfFileSize > 0 ? html`
+              <span class="pdf-footer-item">${this.formatFileSize(this.pdfFileSize)}</span>
+            ` : ''}
+          </div>
+          <div class="pdf-footer-center" style="margin-left: ${this.showSidebar ? '100px' : '0'}">
+            <span>Page ${this.currentPage} of ${this.totalPages}</span>
+          </div>
+          <div class="pdf-footer-right">
+            ${this.pdfUrl ? html`
+              <span class="pdf-footer-filename">${this.pdfUrl.split('/').pop()}</span>
+            ` : ''}
+          </div>
+        </div>
+      </dees-tile>
     `;
   }
 
@@ -305,6 +325,12 @@ export class DeesPdfViewer extends DeesElement {
     }
   }
 
+  private formatFileSize(bytes: number): string {
+    if (bytes < 1024) return `${bytes} B`;
+    if (bytes < 1024 * 1024) return `${(bytes / 1024).toFixed(1)} KB`;
+    return `${(bytes / (1024 * 1024)).toFixed(1)} MB`;
+  }
+
   private async loadPdf() {
     this.loading = true;
     this.renderState = 'loading';
@@ -323,6 +349,14 @@ export class DeesPdfViewer extends DeesElement {
       this.currentPage = this.initialPage;
       this.resolveInitialViewportMode();
 
+      // Get file size
+      try {
+        const data = await this.pdfDocument.getData();
+        this.pdfFileSize = data.length;
+      } catch (e) {
+        this.pdfFileSize = 0;
+      }
+
       // Initialize thumbnail and page data arrays
       this.thumbnailData = Array.from({length: this.totalPages}, (_, i) => ({
         page: i + 1,