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import os
import pathlib
from gradio.themes.utils import ThemeAsset
def create_theme_dropdown():
import gradio as gr
asset_path = pathlib.Path(__file__).parent / "themes"
themes = []
for theme_asset in os.listdir(str(asset_path)):
themes.append(
(ThemeAsset(theme_asset), gr.Theme.load(str(asset_path / theme_asset)))
)
def make_else_if(theme_asset):
return f"""
else if (theme == '{str(theme_asset[0].version)}') {{
var theme_css = `{theme_asset[1]._get_theme_css()}`
}}"""
head, tail = themes[0], themes[1:]
if_statement = f"""
if (theme == "{str(head[0].version)}") {{
var theme_css = `{head[1]._get_theme_css()}`
}} {" ".join(make_else_if(t) for t in tail)}
"""
latest_to_oldest = sorted([t[0] for t in themes], key=lambda asset: asset.version)[
::-1
]
latest_to_oldest = [str(t.version) for t in latest_to_oldest]
component = gr.Dropdown(
choices=latest_to_oldest,
value=latest_to_oldest[0],
render=False,
label="Select Version",
).style(container=False)
return (
component,
f"""
(theme) => {{
if (!document.querySelector('.theme-css')) {{
var theme_elem = document.createElement('style');
theme_elem.classList.add('theme-css');
document.head.appendChild(theme_elem);
}} else {{
var theme_elem = document.querySelector('.theme-css');
}}
{if_statement}
theme_elem.innerHTML = theme_css;
}}
""",
)
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