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Use nest_asyncio for playwright/screenshots in docu

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This commit is contained in:
Matthias Hochsteger 2024-11-11 12:41:36 +01:00
parent 47ea05dc24
commit 69f5e8e572
1 changed files with 16 additions and 10 deletions
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26
python/webgui.py
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@ -414,27 +414,29 @@ def Draw(obj, *args, show=True, **kwargs):
scene.GenerateHTML(filename=kwargs_with_defaults["filename"])
return scene
def _MakeScreenshot(data, png_file, width=1200, height=600):
async def _MakeScreenshot(data, png_file, width=1200, height=600):
"""Uses playwright to make a screenshot of the given html file."""
# pylint: disable=import-outside-toplevel
from playwright.sync_api import sync_playwright
from playwright.async_api import async_playwright
from webgui_jupyter_widgets.html import GenerateHTML, getScreenshotHTML
html_file = png_file + ".html"
GenerateHTML(data, filename=html_file, template=getScreenshotHTML())
with sync_playwright() as play:
browser = play.chromium.launch()
page = browser.new_page(viewport={"width": width, "height": height})
page.goto(f"file://{os.path.abspath(html_file)}")
page.screenshot(path=png_file)
browser.close()
async with async_playwright() as play:
browser = await play.chromium.launch()
page = await browser.new_page(viewport={"width": width, "height": height})
await page.goto(f"file://{os.path.abspath(html_file)}")
await page.screenshot(path=png_file)
await browser.close()
def _DrawDocu(obj, *args, **kwargs):
import json
import asyncio
kwargs_with_defaults = _get_draw_default_args()
kwargs_with_defaults.update(kwargs)
scene = WebGLScene(obj, args, kwargs_with_defaults)
import json
docu_path = os.environ["NETGEN_DOCUMENTATION_OUT_DIR"]
src_path = os.environ["NETGEN_DOCUMENTATION_SRC_DIR"]
@ -462,7 +464,7 @@ def _DrawDocu(obj, *args, **kwargs):
scene.widget = widget
data = scene.GetData()
json.dump(data, open(data_file_abs, "w"))
_MakeScreenshot(data, preview_file_abs, 1200, 600)
asyncio.run(_MakeScreenshot(data, preview_file_abs, 1200, 600))
scene.Redraw = lambda: None
from IPython.display import display, HTML
@ -471,6 +473,10 @@ def _DrawDocu(obj, *args, **kwargs):
if "NETGEN_DOCUMENTATION_SRC_DIR" in os.environ:
# use nest_asyncio to allow reentrant asyncio when executing jupyter notebooks
import nest_asyncio
nest_asyncio.apply()
# we are buiding the documentation, some things are handled differently:
# 1) Draw() is generating a .png (using headless chromium via selenium) and a render_data.json
# to show a preview image and load the render_data only when requested by user