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Update app.py
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app.py
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import gradio as gr
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import
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from selenium import webdriver
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from selenium.webdriver.chrome.options import Options
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from selenium.
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from PIL import Image
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import
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""
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try:
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chrome_options.add_argument("--window-size=1024,768") # Set a reasonable window size
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# chrome_options.binary_location = '/usr/bin/google-chrome' # これは不要 or 間違い
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# Use Service object (explicitly specify chromedriver path if needed)
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# Hugging Face Spaces should handle chromedriver automatically,
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# so we usually don't need to specify the path. But if it still fails,
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# we can try to find it and specify.
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# service = Service(executable_path="/path/to/chromedriver") # 通常は不要
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service = Service() # これで動くはず
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# Start the browser with helium (using the options and service)
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driver = helium.start_chrome(options=chrome_options, service=service)
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helium.go_to(url)
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# Get screenshot as bytes
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png_bytes = driver.get_screenshot_as_png()
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# Convert bytes to PIL Image
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image = Image.open(BytesIO(png_bytes))
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return image
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except Exception as e:
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return f"Error: {e}" # Return the error message
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helium.kill_browser() # Always kill the browser
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except:
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pass
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# Gradio
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)
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import gradio as gr
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import os
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import tempfile
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from selenium import webdriver
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from selenium.webdriver.chrome.options import Options
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from selenium.common.exceptions import WebDriverException
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import time
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import base64
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from PIL import Image
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import io
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def setup_driver():
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"""ヘッドレスChromeドライバーをセットアップして返す"""
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options = webdriver.ChromeOptions()
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options.add_argument("--headless")
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options.add_argument("--no-sandbox")
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options.add_argument("--disable-dev-shm-usage")
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# 一貫したスクリーンショットのためにウィンドウサイズを設定
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options.add_argument("--window-size=1280,1024")
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try:
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driver = webdriver.Chrome(options=options)
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return driver
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except WebDriverException as e:
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print(f"WebDriverの初期化に失敗しました: {e}")
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return None
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def capture_screenshot(html_content, css_content=""):
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"""SeleniumでレンダリングされたHTMLコンテンツのスクリーンショットを撮影する"""
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driver = setup_driver()
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if not driver:
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return None, "Chrome WebDriverの初期化に失敗しました"
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try:
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# 一時的なHTMLファイルを作成
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with tempfile.NamedTemporaryFile(suffix='.html', delete=False) as f:
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html_file = f.name
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combined_html = f"""
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="UTF-8">
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<style>
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{css_content}
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</style>
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</head>
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<body>
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{html_content}
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</body>
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</html>
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"""
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f.write(combined_html.encode('utf-8'))
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# HTMLファイルに移動
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driver.get(f"file://{html_file}")
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time.sleep(1) # レンダリングの時間を確保
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# スクリーンショットを撮影
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screenshot = tempfile.NamedTemporaryFile(suffix='.png', delete=False)
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driver.save_screenshot(screenshot.name)
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screenshot.close()
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# 表示用に画像を読み込む
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img = Image.open(screenshot.name)
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# 後始末
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os.unlink(html_file)
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return img, None
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except Exception as e:
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return None, f"スクリーンショットの撮影時にエラーが発生しました: {str(e)}"
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finally:
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driver.quit()
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def render_html(html_code, css_code=""):
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"""HTMLコードをレンダリングしてスクリーンショットを撮影"""
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# HTMLを画像に変換
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image, error = capture_screenshot(html_code, css_code)
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if error:
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return None, gr.HTML(f"<div style='color: red;'>{error}</div>")
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# Gradioの HTML コンポーネントでHTMLを表示
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html_display = f"""
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<div style="border: 1px solid #ddd; padding: 10px; margin-bottom: 20px;">
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<h3>HTMLプレビュー:</h3>
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<iframe srcdoc="{html_code.replace('"', '"')}"
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style="width: 100%; height: 300px; border: 1px solid #ddd;"></iframe>
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</div>
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"""
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return image, gr.HTML(html_display)
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# Gradioインターフェースを作成
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with gr.Blocks() as demo:
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gr.Markdown("# HTMLレンダラー(スクリーンショット機能付き)")
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gr.Markdown("以下にHTMLコードを入力して、ヘッドレスChromeでレンダリングしスクリーンショットを撮影します。")
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with gr.Row():
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with gr.Column():
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html_input = gr.Textbox(
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label="HTMLコード",
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placeholder="ここにHTMLコードを入力...",
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lines=10,
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value="<h1>こんにちは、世界!</h1><p>これはSeleniumとヘッドレスChromeによるGradioのテストです。</p>"
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)
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css_input = gr.Textbox(
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label="CSSコード(オプション)",
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placeholder="ここにCSSコードを入力...",
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lines=5,
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value="body { font-family: 'Noto Sans JP', sans-serif; margin: 20px; } h1 { color: blue; }"
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)
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render_button = gr.Button("レンダリングしてスクリーンショットを撮影")
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with gr.Column():
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screenshot_output = gr.Image(label="スクリーンショット")
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html_preview = gr.HTML(label="HTMLプレビュー")
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render_button.click(
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render_html,
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inputs=[html_input, css_input],
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outputs=[screenshot_output, html_preview]
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)
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# アプリを起動
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demo.launch()
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