update

ts_web/elements/viewer.ts

@@ -13,7 +13,7 @@ import {
 import { demoFunc } from "./viewer.demo.js";
 import { DeDocument } from "./document.js";
 
-import * as deesCatalog from "@design.estate/dees-catalog";
+import "@design.estate/dees-catalog";
 
 declare global {
   interface HTMLElementTagNameMap {
@@ -65,6 +65,14 @@ export class DeDocumentViewer extends DeesElement {
   })
   accessor documentSettings: plugins.shared.interfaces.IDocumentSettings;
 
+  // External configuration properties
+  @property({ type: Number })
+  accessor initialZoom: number = null; // Initial zoom % (null = auto)
+
+  @property({ type: Number })
+  accessor initialPageGap: number = 16; // Initial page gap in pixels
+
+  // Internal state
   @state()
   accessor zoomMode: TZoomPreset = "auto";
 
@@ -387,8 +395,6 @@ export class DeDocumentViewer extends DeesElement {
     `,
   ];
 
-  private documentRef: DeDocument | null = null;
-
   public render(): TemplateResult {
     return html`
       <div class="maincontainer">
@@ -728,8 +734,19 @@ export class DeDocumentViewer extends DeesElement {
   }
 
   public firstUpdated(): void {
-    // Update display zoom initially
-    setTimeout(() => this.updateDisplayZoom(), 200);
+    // Apply initial settings if provided
+    if (this.initialPageGap !== 16) {
+      this.pageGap = this.initialPageGap;
+    }
+
+    if (this.initialZoom !== null) {
+      this.zoomLevel = this.initialZoom;
+      this.displayZoom = this.initialZoom;
+      this.zoomMode = this.initialZoom;
+    } else {
+      // Update display zoom initially for auto mode
+      setTimeout(() => this.updateDisplayZoom(), 200);
+    }
 
     // Handle viewport resize to update display zoom in auto mode
     const viewport = this.shadowRoot?.querySelector(".viewport");
@@ -743,4 +760,120 @@ export class DeDocumentViewer extends DeesElement {
       this.registerGarbageFunction(() => resizeObserver.disconnect());
     }
   }
+
+  // ============================================
+  // PUBLIC API METHODS
+  // ============================================
+
+  /**
+   * Set the zoom level programmatically
+   * @param level - Zoom percentage (25-400), or 'auto', 'fit-width', 'fit-page'
+   */
+  public setZoom(level: number | "auto" | "fit-width" | "fit-page"): void {
+    if (level === "auto") {
+      this.handleZoomPreset("auto");
+    } else if (level === "fit-width") {
+      this.handleZoomPreset("fit-width");
+    } else if (level === "fit-page") {
+      this.handleZoomPreset("fit-page");
+    } else {
+      const clampedZoom = Math.min(400, Math.max(25, level));
+      this.zoomLevel = clampedZoom;
+      this.displayZoom = clampedZoom;
+      this.zoomMode = clampedZoom;
+    }
+  }
+
+  /**
+   * Get the current zoom percentage
+   */
+  public getZoom(): number {
+    return this.displayZoom;
+  }
+
+  /**
+   * Set the page gap (spacing between pages)
+   * @param gap - Gap in pixels (0-64)
+   */
+  public setPageGap(gap: number): void {
+    this.pageGap = Math.min(64, Math.max(0, gap));
+  }
+
+  /**
+   * Get the current page gap in pixels
+   */
+  public getPageGap(): number {
+    return this.pageGap;
+  }
+
+  /**
+   * Get the total number of pages in the document
+   */
+  public getPageCount(): number {
+    const doc = this.shadowRoot?.querySelector("dedocument-dedocument");
+    if (!doc) return 0;
+    const pages = doc.shadowRoot?.querySelectorAll("dedocument-page");
+    return pages?.length ?? 0;
+  }
+
+  /**
+   * Get the currently visible page number (1-indexed)
+   */
+  public getCurrentPage(): number {
+    const viewport = this.shadowRoot?.querySelector(".viewport");
+    const doc = this.shadowRoot?.querySelector("dedocument-dedocument");
+    if (!viewport || !doc) return 1;
+
+    const pages = doc.shadowRoot?.querySelectorAll("dedocument-page");
+    if (!pages || pages.length === 0) return 1;
+
+    const viewportRect = viewport.getBoundingClientRect();
+    const viewportCenter = viewportRect.top + viewportRect.height / 2;
+
+    let currentPage = 1;
+    for (let i = 0; i < pages.length; i++) {
+      const pageRect = pages[i].getBoundingClientRect();
+      if (pageRect.top <= viewportCenter && pageRect.bottom >= viewportCenter) {
+        currentPage = i + 1;
+        break;
+      }
+      if (pageRect.top > viewportCenter) {
+        currentPage = Math.max(1, i);
+        break;
+      }
+      currentPage = i + 1;
+    }
+
+    return currentPage;
+  }
+
+  /**
+   * Scroll to a specific page
+   * @param pageNumber - Page number (1-indexed)
+   * @param smooth - Whether to use smooth scrolling (default: true)
+   */
+  public scrollToPage(pageNumber: number, smooth: boolean = true): void {
+    const doc = this.shadowRoot?.querySelector("dedocument-dedocument");
+    if (!doc) return;
+
+    const pages = doc.shadowRoot?.querySelectorAll("dedocument-page");
+    if (!pages || pages.length === 0) return;
+
+    const targetIndex = Math.min(Math.max(0, pageNumber - 1), pages.length - 1);
+    const targetPage = pages[targetIndex];
+
+    if (targetPage) {
+      targetPage.scrollIntoView({
+        behavior: smooth ? "smooth" : "instant",
+        block: "start",
+      });
+    }
+  }
+
+  /**
+   * Trigger the print dialog
+   */
+  public async print(): Promise<void> {
+    await this.handlePrint();
+  }
 }