From 1a6e653600551a442c411a026d9b1b8a1ff67ee3 Mon Sep 17 00:00:00 2001
From: Elian Doran <contact@eliandoran.me>
Date: Fri, 21 Nov 2025 19:57:13 +0200
Subject: [PATCH] feat(print): support progress report on electron

---
 apps/client/src/print.tsx              |  8 +++++++-
 apps/client/src/widgets/NoteDetail.tsx | 14 ++++++++++----
 apps/server/src/services/window.ts     |  9 ++++++---
 3 files changed, 23 insertions(+), 8 deletions(-)

diff --git a/apps/client/src/print.tsx b/apps/client/src/print.tsx
index 075b566e6..ffef86044 100644
--- a/apps/client/src/print.tsx
+++ b/apps/client/src/print.tsx
@@ -3,6 +3,7 @@ import { render } from "preact";
 import { CustomNoteList, useNoteViewType } from "./widgets/collections/NoteList";
 import { useCallback, useLayoutEffect, useRef } from "preact/hooks";
 import content_renderer, { applyInlineMermaid } from "./services/content_renderer";
+import { dynamicRequire, isElectron } from "./services/utils";
 
 interface RendererProps {
     note: FNote;
@@ -25,7 +26,12 @@ async function main() {
 function App({ note, noteId }: { note: FNote | null | undefined, noteId: string }) {
     const sentReadyEvent = useRef(false);
     const onProgressChanged = useCallback((progress: number) => {
-        window.dispatchEvent(new CustomEvent("note-load-progress", { detail: { progress } }));
+        if (isElectron()) {
+            const { ipcRenderer } = dynamicRequire('electron');
+            ipcRenderer.send("print-progress", progress);
+        } else {
+            window.dispatchEvent(new CustomEvent("note-load-progress", { detail: { progress } }));
+        }
     }, []);
     const onReady = useCallback(() => {
         if (sentReadyEvent.current) return;
diff --git a/apps/client/src/widgets/NoteDetail.tsx b/apps/client/src/widgets/NoteDetail.tsx
index 943322f9e..406354eee 100644
--- a/apps/client/src/widgets/NoteDetail.tsx
+++ b/apps/client/src/widgets/NoteDetail.tsx
@@ -113,11 +113,17 @@ export default function NoteDetail() {
     useEffect(() => {
         if (!isElectron()) return;
         const { ipcRenderer } = dynamicRequire("electron");
-        const listener = () => {
-            toast.closePersistent("printing");
+        const onPrintProgress = (_e: any, progress: number) => {
+            console.log("Got print progress:", progress);
+            showToast("printing", progress);
+        };
+        const onPrintDone = () => toast.closePersistent("printing");
+        ipcRenderer.on("print-progress", onPrintProgress);
+        ipcRenderer.on("print-done", onPrintDone);
+        return () => {
+            ipcRenderer.off("print-progress", onPrintProgress);
+            ipcRenderer.off("print-done", onPrintDone);
         };
-        ipcRenderer.on("print-done", listener);
-        return () => ipcRenderer.off("print-done", listener);
     }, []);
 
     useTriliumEvent("executeInActiveNoteDetailWidget", ({ callback }) => {
diff --git a/apps/server/src/services/window.ts b/apps/server/src/services/window.ts
index c2fab2ac3..8f2d26f47 100644
--- a/apps/server/src/services/window.ts
+++ b/apps/server/src/services/window.ts
@@ -7,13 +7,11 @@ import log from "./log.js";
 import sqlInit from "./sql_init.js";
 import cls from "./cls.js";
 import keyboardActionsService from "./keyboard_actions.js";
-import electron from "electron";
+import electron, { ipcMain } from "electron";
 import type { App, BrowserWindowConstructorOptions, BrowserWindow, WebContents, IpcMainEvent } from "electron";
 import { formatDownloadTitle, isDev, isMac, isWindows } from "./utils.js";
 import { t } from "i18next";
 import { RESOURCE_DIR } from "./resource_dir.js";
-import { PerformanceObserverEntryList } from "perf_hooks";
-import options from "./options.js";
 
 // Prevent the window being garbage collected
 let mainWindow: BrowserWindow | null;
@@ -155,6 +153,10 @@ async function getBrowserWindowForPrinting(e: IpcMainEvent, notePath: string) {
             session: e.sender.session
         },
     });
+
+    const progressCallback = (_e, progress: number) => e.sender.send("print-progress", progress);
+    ipcMain.on("print-progress", progressCallback);
+
     await browserWindow.loadURL(`http://127.0.0.1:${port}/?print#${notePath}`);
     await browserWindow.webContents.executeJavaScript(`
         new Promise(resolve => {
@@ -162,6 +164,7 @@ async function getBrowserWindowForPrinting(e: IpcMainEvent, notePath: string) {
             window.addEventListener("note-ready", () => resolve());
         });
     `);
+    ipcMain.off("print-progress", progressCallback);
     return browserWindow;
 }