zulip/tools/message-screenshot.js

78 lines
2.9 KiB
JavaScript

const puppeteer = require("puppeteer");
const commander = require("commander");
const path = require("path");
const mkdirp = require("mkdirp");
const host = "localhost:9991";
const options = {};
commander
.arguments("<message_id> <image_path>")
.action((messageId, imagePath) => {
options.messageId = messageId;
options.imagePath = imagePath;
console.log(`Capturing screenshot for message ${messageId} to ${imagePath}`);
})
.parse(process.argv);
if (options.messageId === undefined) {
console.error("no messageId specified!");
process.exit(1);
}
// TODO: Refactor to share code with frontend_tests/puppeteer_tests/00-realm-creation.js
async function run() {
const browser = await puppeteer.launch({
args: [
"--window-size=1400,1024",
"--no-sandbox",
"--disable-setuid-sandbox",
// Helps render fonts correctly on Ubuntu: https://github.com/puppeteer/puppeteer/issues/661
"--font-render-hinting=none",
],
defaultViewport: null,
headless: true,
});
try {
const page = await browser.newPage();
// deviceScaleFactor:2 gives better quality screenshots (higher pixel density)
await page.setViewport({width: 1280, height: 1024, deviceScaleFactor: 2});
await page.goto("http://" + host);
// wait for Iago devlogin button and click on it.
await page.waitForSelector('[value="iago@zulip.com"]');
// By waiting till DOMContentLoaded we're confirming that Iago is logged in.
await Promise.all([
page.waitForNavigation({waitUntil: "domcontentloaded"}),
page.click('[value="iago@zulip.com"]'),
]);
// Navigate to message and capture screenshot
await page.goto(`http://${host}/#narrow/near/${options.messageId}`);
const messageSelector = `#zfilt${options.messageId}`;
await page.waitForSelector(messageSelector);
// remove unread marker and don't select message
const marker = `#zfilt${options.messageId} .unread_marker`;
await page.evaluate((sel) => $(sel).remove(), marker); // eslint-disable-line no-undef
await page.evaluate(() => navigate.up()); // eslint-disable-line no-undef
const messageBox = await page.$(messageSelector);
const messageGroup = (await messageBox.$x(".."))[0];
// Compute screenshot area, with some padding around the message group
const clip = Object.assign({}, await messageGroup.boundingBox());
clip.y -= 5;
clip.x -= 5;
clip.width += 10;
clip.height += 10;
const imagePath = options.imagePath;
const imageDir = path.dirname(imagePath);
mkdirp.sync(imageDir);
await page.screenshot({path: imagePath, clip: clip});
} catch (e) {
console.log(e);
process.exit(1);
} finally {
await browser.close();
}
}
run();