background video

src/pages/viewer/utils/pageBackground.ts

@@ -1,10 +1,11 @@
 import type { PageData } from "@/pages/viewer/types";
 
 export type PageBackgroundDefaults = {
-  backgroundType?: "color" | "gradient" | "image";
+  backgroundType?: "color" | "gradient" | "image" | "video";
   backgroundColor?: string;
   backgroundGradient?: { from: string; to: string; angle: number };
   backgroundImageUrl?: string;
+  backgroundVideoUrl?: string;
 };
 
 /** ترکیب پس‌زمینهٔ اختصاصی صفحه با مقادیر پیش‌فرض سند (همان قاعدهٔ استفاده‌شده در BookViewer) */
@@ -14,5 +15,6 @@ export function resolvePageBackground(page: PageData, defaults: PageBackgroundDe
     backgroundColor: page.backgroundColor ?? defaults.backgroundColor ?? "#ffffff",
     backgroundGradient: page.backgroundGradient ?? defaults.backgroundGradient ?? { from: "#ffffff", to: "#ffffff", angle: 0 },
     backgroundImageUrl: page.backgroundImageUrl ?? defaults.backgroundImageUrl ?? "",
+    backgroundVideoUrl: page.backgroundVideoUrl ?? defaults.backgroundVideoUrl ?? "",
   };
 }