Photoreactor

Photoreactor is a React webapp that allows you to specify document structure using JSON scripts, and renders it as HTML in the browser.

The combination of Photoreactor and Playwright can be useful for creating Thumbnails/Screenshots programmatically.

I am using readmix for generating this README. You can view the source file here.

The above image was rendered using the following JSON script.

{
    "title":"Example",
    "height":"480px",
    "width":"1080px",
    "padding":"60px 100px",
    "backgroundColor":"#dc2626",
    "color":"#eee",
    "fontFamily":"Ubuntu",
    "fontWeight":"700",
    "borderColor":"#ef4444",
    "borderWidth":"10px",
    "borderStyle":"solid",
    "children":[
        {"text":"Photoreactor","fontSize":"96px"},
        {"text":"Taking Screenshots with Python","fontSize":"48px", "padding": "10px 0px"},
        {"text":"Created by Ankur Seth", "fontSize":"32px", "padding": "60px 0px 0px 0px"}
    ]
}

What is supported

Currently, all rendered elements are div and they can contain any number of children and/or a single text node inside them.

• The following CSS properties are supported on each element:

• Tailwind color classes - all background-color (bg-*), color (text-*) and border-color (border-*) classes are supported.

What is not supported yet

The following features are not yet supported in Photoreact but will be supported in future:

• More CSS properties
• Support for more Tailwind classes
• Images (uploaded/URLs)
• Videos (uploaded)
• Custom Fonts (especially Google Fonts)

Capturing Screenshots Programmatically

The below script captures Screenshots using Python and Playwright.

import json
import shutil
import time

from playwright.sync_api import Page, expect
from playwright.sync_api import sync_playwright


APP_LOCAL_URL = "http://localhost:5173/"
APP_REMOTE_URL = "https://photoreactor.redpapr.com/"


def record_screencast(script_json, resolution, screenshot_file_path):
	with sync_playwright() as playwright:
		browser = playwright.chromium.launch(headless=True)
		context = browser.new_context(viewport=resolution)
		print("\tCreated browser context")

		page = context.new_page()
		t1 = time.time()
		print("\tCreated new page")
		page.set_default_timeout(0)
		page.goto(APP_REMOTE_URL)
		t2 = time.time()
		td = round(t2-t1, 1)
		print(f"\tOpened photoreactor in {td} seconds")

		page.locator("#inputTextArea").fill(script_json)
		page.locator("#renderButton").click()
		page.wait_for_timeout(1000) # ensures that renderer has started
		page.screenshot(path=screenshot_file_path);

		page.close()
		context.close()
		browser.close()

		print(f"\t\tSaved screenshot: {screenshot_file_path}")


def main():
	script = {
		"title":"Example",
		"height":"480px",
		"width":"1080px",
		"padding":"60px 100px",
		"backgroundColor":"#dc2626",
		"color":"#eee",
		"fontFamily":"Ubuntu",
		"fontWeight":"700",
		"borderColor":"#ef4444",
		"borderWidth":"10px",
		"borderStyle":"solid",
		"children":[
			{"text":"Photoreactor","fontSize":"96px"},
			{"text":"Taking Screenshots with Python","fontSize":"48px", "padding": "10px 0px"},
			{"text":"Created by Ankur Seth", "fontSize":"32px", "padding": "60px 0px 0px 0px"}
		]
	}

	script_json = json.dumps(script)
	resolution = {
		'height': 480,
		'width': 1080
	}
	screenshot_file_path = "screenshot.png"

	record_screencast(script_json, resolution, screenshot_file_path)


if __name__ == '__main__':
	main()

License

MIT License

Copyright (c) Ankur Seth.

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Credit

This file was generated using readmix.