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sauravniraula 2025-05-15 12:55:08 +05:45
parent e8077ffdb5
commit ec99cf0762
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1 changed files with 53 additions and 51 deletions
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104
app/ipc/slide_metadata.ts
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@ -1,7 +1,9 @@
import { BrowserWindow, ipcMain } from "electron";
import fs from 'fs';
import path from 'path';
import { tempDir } from "../utils/constants";
import { tempDir } from "../utils/constants";
interface Position {
left: number;
top: number;
@ -84,23 +86,23 @@ type SlideElement = TextElement | PictureElement | BoxElement | LineElement | Gr
export function setupSlideMetadataHandlers() {
ipcMain.handle("get-slide-metadata", async (_, url: string, theme: string, customColors?: any) => {
let win:BrowserWindow | null = null;
let win: BrowserWindow | null = null;
try {
win = new BrowserWindow({
width: 1920,
height: 1080,
webPreferences: {
webSecurity: false,
preload: path.join(__dirname, '../preloads/index.js'),
},
show: false,
});
win = new BrowserWindow({
width: 1920,
height: 1080,
webPreferences: {
webSecurity: false,
preload: path.join(__dirname, '../preloads/index.js'),
},
show: false,
});
await win.loadURL(url,{userAgent:'electron'});
await win.webContents.executeJavaScript(`
await win.loadURL(url, { userAgent: 'electron' });
await win.webContents.executeJavaScript(`
new Promise((resolve) => {
const check = () => {
const el = document.querySelector('[data-element-type="slide-container"]');
@ -110,8 +112,8 @@ export function setupSlideMetadataHandlers() {
check();
});
`);
const metadata = await win.webContents.executeJavaScript(
`
const metadata = await win.webContents.executeJavaScript(
`
(() => {
const rgbToHex = (color) => {
if (!color || color === "transparent" || color === "none") return "000000";
@ -281,25 +283,25 @@ export function setupSlideMetadataHandlers() {
return slidesMetadata;
})();
`
)
// ✅ Handle Graphs: capture each graph element as an image
)
// ✅ Handle Graphs: capture each graph element as an image
const graphIds: { id: string; bounds: Electron.Rectangle }[] = await win.webContents.executeJavaScript(`
(() => {
return Array.from(document.querySelectorAll('[data-element-type="graph"]')).map(el => el.getAttribute("data-element-id"));
})();
`);
for (const id of graphIds) {
try {
// Scroll into view first
await win.webContents.executeJavaScript(`
for (const id of graphIds) {
try {
// Scroll into view first
await win.webContents.executeJavaScript(`
document.querySelector('[data-element-id="${id}"]').scrollIntoView({ behavior: 'instant', block: 'center' });
`);
// Wait a bit for any animations/rendering to complete
await new Promise((r) => setTimeout(r, 2000));
const bounds: Electron.Rectangle = await win.webContents.executeJavaScript(`
`);
// Wait a bit for any animations/rendering to complete
await new Promise((r) => setTimeout(r, 2000));
const bounds: Electron.Rectangle = await win.webContents.executeJavaScript(`
(() => {
const el = document.querySelector('[data-element-id="${id}"]');
if (!el) return null;
@ -313,30 +315,30 @@ export function setupSlideMetadataHandlers() {
})();
`);
const image = await win.webContents.capturePage(bounds);
const buffer = image.toJPEG(100);
if (buffer.length === 0) {
console.error("Empty buffer! Graph not captured.");
continue;
}
const filePath = path.join(tempDir, `chart-${id}-${Date.now()}.jpeg`);
fs.writeFileSync(filePath, buffer);
// Update metadata
metadata.forEach((slide: any) => {
slide.elements.forEach((element: any) => {
if ("picture" in element && element.picture.path === `__GRAPH_PLACEHOLDER__${id}`) {
element.picture.path = filePath;
}
const image = await win.webContents.capturePage(bounds);
const buffer = image.toJPEG(100);
if (buffer.length === 0) {
console.error("Empty buffer! Graph not captured.");
continue;
}
const filePath = path.join(tempDir, `chart-${id}-${Date.now()}.jpeg`);
fs.writeFileSync(filePath, buffer);
// Update metadata
metadata.forEach((slide: any) => {
slide.elements.forEach((element: any) => {
if ("picture" in element && element.picture.path === `__GRAPH_PLACEHOLDER__${id}`) {
element.picture.path = filePath;
}
});
});
});
} catch (err) {
console.error(`Failed to capture or save chart-${id}:`, err);
} catch (err) {
console.error(`Failed to capture or save chart-${id}:`, err);
}
}
}
return metadata;
} catch (error) {
console.error("Error during page preparation:", error);