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#!/usr/bin/env python3
import os
import subprocess
import time
from pathlib import Path
from selenium import webdriver
from selenium.webdriver.chrome.options import Options
from selenium.webdriver.firefox.options import Options as FirefoxOptions
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
import json
def check_browser_availability():
"""Check which browser is available"""
browsers = []
# Check for Chrome/Chromium
for browser in ['google-chrome', 'chromium', 'chromium-browser']:
try:
result = subprocess.run([browser, '--version'], capture_output=True, text=True)
if result.returncode == 0:
browsers.append(('chrome', browser))
break
except:
continue
# Check for Firefox
try:
result = subprocess.run(['firefox', '--version'], capture_output=True, text=True)
if result.returncode == 0:
browsers.append(('firefox', 'firefox'))
except:
pass
return browsers
def capture_with_selenium(browser_type, browser_path, html_file, output_file):
"""Capture screenshot using Selenium"""
if browser_type == 'chrome':
options = Options()
options.add_argument('--headless')
options.add_argument('--no-sandbox')
options.add_argument('--disable-dev-shm-usage')
options.add_argument('--window-size=1200,900')
try:
driver = webdriver.Chrome(options=options)
except:
# Try with chromium
options.binary_location = browser_path
driver = webdriver.Chrome(options=options)
else: # firefox
options = FirefoxOptions()
options.add_argument('--headless')
options.add_argument('--width=1200')
options.add_argument('--height=900')
driver = webdriver.Firefox(options=options)
try:
# Load the HTML file
driver.get(f"file://{html_file}")
# Wait for page to load
time.sleep(2)
# Crop to content area (400x300)
driver.set_window_size(400, 300)
# Take screenshot
driver.save_screenshot(str(output_file))
finally:
driver.quit()
def capture_with_headless_browser(html_file, output_file):
"""Capture screenshot using headless browser directly"""
browsers = check_browser_availability()
if not browsers:
return False
for browser_type, browser_path in browsers:
try:
if browser_type == 'chrome':
cmd = [
browser_path,
'--headless',
'--disable-gpu',
'--window-size=400,300',
'--screenshot=' + str(output_file),
'--default-background-color=0',
f'file://{html_file}'
]
else: # firefox
cmd = [
browser_path,
'--headless',
'--window-size=400,300',
'--screenshot=' + str(output_file),
f'file://{html_file}'
]
result = subprocess.run(cmd, capture_output=True, text=True, timeout=10)
if result.returncode == 0 and output_file.exists():
return True
except Exception as e:
print(f"Error with {browser_type}: {e}")
continue
return False
def generate_mini_html(theme_dir, temp_html):
"""Generate a mini HTML file that showcases the theme"""
theme_name = theme_dir.name
# Read the theme's example.html to get color info
example_html = theme_dir / "example.html"
if not example_html.exists():
return False
# Create a mini version that fits in 400x300
mini_html = f"""<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<link rel="stylesheet" href="{theme_dir}/style.css">
<style>
body {{
margin: 0;
padding: 20px;
min-height: 260px;
overflow: hidden;
}}
.preview-container {{
max-width: 360px;
margin: 0 auto;
}}
h1 {{
font-size: 1.8em !important;
margin: 0.3em 0 !important;
}}
h2 {{
font-size: 1.3em !important;
margin: 0.5em 0 0.3em 0 !important;
}}
p {{
font-size: 0.9em !important;
line-height: 1.4 !important;
margin: 0.5em 0 !important;
}}
.quote {{
font-size: 0.85em !important;
padding: 0.5em 1em !important;
margin: 0.5em 0 !important;
}}
pre {{
font-size: 0.75em !important;
padding: 0.5em !important;
margin: 0.5em 0 !important;
max-height: 60px;
overflow: hidden;
}}
a {{
font-size: 0.9em !important;
}}
/* Hide overflow content */
.preview-container > *:nth-child(n+6) {{
display: none;
}}
</style>
</head>
<body>
<div class="preview-container">
<h1>{theme_name.replace('_', ' ').title()}</h1>
<p>This is a preview of the theme's typography and color scheme.</p>
<h2>Features</h2>
<p>Clean design with <a href="#">interactive links</a> and elegant styling.</p>
<div class="quote">
"Beautiful themes for Gemtexter"
</div>
<pre><code>theme = "{theme_name}"</code></pre>
</div>
</body>
</html>"""
with open(temp_html, 'w') as f:
f.write(mini_html)
return True
def main():
themes_dir = Path("/home/paul/git/gemtexter/extras/html/themes")
screenshots_dir = themes_dir / "screenshots"
screenshots_dir.mkdir(exist_ok=True)
# Check browser availability
browsers = check_browser_availability()
if not browsers:
print("No supported browser found. Please install Chrome/Chromium or Firefox.")
print("For better screenshots, you can also install Selenium:")
print(" pip install selenium pillow")
return
print(f"Found browsers: {[b[1] for b in browsers]}")
# Get all theme directories
theme_dirs = [d for d in themes_dir.iterdir() if d.is_dir() and d.name not in ['screenshots', '.git']]
valid_themes = [d for d in theme_dirs if (d / "style.css").exists()]
print(f"Generating HTML screenshots for {len(valid_themes)} themes...")
success_count = 0
temp_html = themes_dir / "temp_preview.html"
for i, theme_dir in enumerate(valid_themes):
theme_name = theme_dir.name
output_path = screenshots_dir / f"{theme_name}.png"
print(f"[{i+1}/{len(valid_themes)}] Generating screenshot for {theme_name}...", end='', flush=True)
try:
# Generate mini HTML
if not generate_mini_html(theme_dir, temp_html):
print(" ✗ (no example.html)")
continue
# Try to capture screenshot
if capture_with_headless_browser(temp_html, output_path):
success_count += 1
print(" ✓")
else:
print(" ✗ (capture failed)")
except Exception as e:
print(f" ✗ ({e})")
# Clean up
if temp_html.exists():
temp_html.unlink()
print(f"\nSuccessfully generated {success_count} screenshots!")
# If we have working setup but some failed, offer Selenium option
if success_count < len(valid_themes):
print("\nFor better results, you can install Selenium:")
print(" pip install selenium")
print(" # Also install ChromeDriver or GeckoDriver")
if __name__ == "__main__":
main()
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