Print with embed (#5109)

frontend/src/core/contexts/ViewerContext.tsx

@@ -18,6 +18,7 @@ import {
   SearchActions,
   ExportActions,
   BookmarkActions,
+  PrintActions,
 } from '@app/contexts/viewer/viewerActions';
 import {
   BridgeRef,
@@ -125,6 +126,7 @@ interface ViewerContextType {
   searchActions: SearchActions;
   exportActions: ExportActions;
   bookmarkActions: BookmarkActions;
+  printActions: PrintActions;
 
   // Bridge registration - internal use by bridges  
   registerBridge: <K extends BridgeKey>(
@@ -277,6 +279,7 @@ export const ViewerProvider: React.FC<ViewerProviderProps> = ({ children }) => {
     searchActions,
     exportActions,
     bookmarkActions,
+    printActions,
   } = createViewerActions({
     registry: bridgeRefs,
     getScrollState,
@@ -333,6 +336,7 @@ export const ViewerProvider: React.FC<ViewerProviderProps> = ({ children }) => {
     searchActions,
     exportActions,
     bookmarkActions,
+    printActions,
 
     // Bridge registration
     registerBridge,

frontend/src/core/contexts/viewer/viewerActions.ts

@@ -65,6 +65,10 @@ export interface BookmarkActions {
   setLocalBookmarks: (bookmarks: PdfBookmarkObject[] | null, error?: string | null) => void;
 }
 
+export interface PrintActions {
+  print: () => void;
+}
+
 export interface ViewerActionsBundle {
   scrollActions: ScrollActions;
   zoomActions: ZoomActions;
@@ -75,6 +79,7 @@ export interface ViewerActionsBundle {
   searchActions: SearchActions;
   exportActions: ExportActions;
   bookmarkActions: BookmarkActions;
+  printActions: PrintActions;
 }
 
 interface ViewerActionDependencies {
@@ -332,5 +337,13 @@ export function createViewerActions({
         api?.setLocalBookmarks?.(bookmarks ?? null, error);
       },
     },
+    printActions: {
+      print: () => {
+        const api = registry.current.print?.api;
+        if (api?.print) {
+          api.print();
+        }
+      },
+    },
   };
 }

frontend/src/core/contexts/viewer/viewerBridges.ts

@@ -49,6 +49,10 @@ export interface SearchAPIWrapper {
   goToResult: (index: number) => void;
 }
 
+export interface PrintAPIWrapper {
+  print: () => void;
+}
+
 export interface ThumbnailAPIWrapper {
   renderThumb: (pageIndex: number, scale: number) => {
     toPromise: () => Promise<Blob>;
@@ -132,6 +136,7 @@ export interface BridgeStateMap {
   thumbnail: unknown;
   export: ExportState;
   bookmark: BookmarkState;
+  print: unknown;
 }
 
 export interface BridgeApiMap {
@@ -145,6 +150,7 @@ export interface BridgeApiMap {
   thumbnail: ThumbnailAPIWrapper;
   export: ExportAPIWrapper;
   bookmark: BookmarkAPIWrapper;
+  print: PrintAPIWrapper;
 }
 
 export type BridgeKey = keyof BridgeStateMap;
@@ -164,6 +170,7 @@ export const createBridgeRegistry = (): ViewerBridgeRegistry => ({
   thumbnail: null,
   export: null,
   bookmark: null,
+  print: null,
 });
 
 export function registerBridge<K extends BridgeKey>(