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import re
import streamlit as st
import fragments
if 'primaryColor' not in st.session_state:
st.session_state['primaryColor'] = "#F63366"
if 'backgroundColor' not in st.session_state:
st.session_state['backgroundColor'] = "#FFFFFF"
if 'secondaryBackgroundColor' not in st.session_state:
st.session_state['secondaryBackgroundColor'] = "#F0F2F6"
if 'textColor' not in st.session_state:
st.session_state['textColor'] = "#262730"
primary_color = st.color_picker('Primary color', key="primaryColor")
text_color = st.color_picker('Text color', key="textColor")
background_color = st.color_picker('Background color', key="backgroundColor")
secondary_background_color = st.color_picker('Secondary background color', key="secondaryBackgroundColor")
def parse_hex(rgb_hex_str: str) -> tuple[float, float, float]:
if not re.match(r"^#[0-9a-fA-F]{6}$", rgb_hex_str):
raise ValueError("Invalid hex color")
return tuple(int(rgb_hex_str[i:i+2], 16) / 255 for i in (1, 3, 5))
primary_color_rgb = parse_hex(primary_color)
text_color_rgb = parse_hex(text_color)
background_color_rgb = parse_hex(background_color)
secondary_background_color_rgb = parse_hex(secondary_background_color)
st.header("WCAG contrast ratio")
col1, col2, col3 = st.columns(3)
with col2:
def on_change():
st.session_state["backgroundColor"] = st.session_state["backgroundColor2"]
st.color_picker("Background color", value=background_color, key="backgroundColor2", on_change=on_change)
with col3:
def on_change():
st.session_state["secondaryBackgroundColor"] = st.session_state["secondaryBackgroundColor2"]
st.color_picker("Secondary background color", value=secondary_background_color, key="secondaryBackgroundColor2", on_change=on_change)
col1, col2, col3 = st.columns(3)
with col1:
def on_change():
st.session_state["primaryColor"] = st.session_state["primaryColor2"]
st.color_picker("Primary color", value=primary_color, key="primaryColor2", on_change=on_change)
with col2:
fragments.contrast_summary(primary_color_rgb, background_color_rgb)
with col3:
fragments.contrast_summary(primary_color_rgb, secondary_background_color_rgb)
col1, col2, col3 = st.columns(3)
with col1:
def on_change():
st.session_state["textColor"] = st.session_state["textColor2"]
st.color_picker("Text color", value=text_color, key="textColor2", on_change=on_change)
with col2:
fragments.contrast_summary(text_color_rgb, background_color_rgb)
with col3:
fragments.contrast_summary(text_color_rgb, secondary_background_color_rgb)
st.header("Config")
st.code(f"""
primaryColor="{primary_color}"
backgroundColor="{background_color}"
secondaryBackgroundColor="{secondary_background_color}"
textColor="{text_color}"
""")
apply_theme = st.checkbox("Apply theme to this page")
if apply_theme:
def reconcile_theme_config():
keys = ['primaryColor', 'backgroundColor', 'secondaryBackgroundColor', 'textColor']
has_changed = False
for key in keys:
if st._config.get_option(f'theme.{key}') != st.session_state[key]:
st._config.set_option(f'theme.{key}', st.session_state[key])
has_changed = True
if has_changed:
st.experimental_rerun()
reconcile_theme_config()
fragments.sample_components("body")
with st.sidebar:
fragments.sample_components("sidebar")
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