{"cells": [{"cell_type": "markdown", "id": "302934307671667531413257853548643485645", "metadata": {}, "source": ["# Gradio Demo: html_server_functions"]}, {"cell_type": "code", "execution_count": null, "id": "272996653310673477252411125948039410165", "metadata": {}, "outputs": [], "source": ["!pip install -q gradio "]}, {"cell_type": "code", "execution_count": null, "id": "288918539441861185822528903084949547379", "metadata": {}, "outputs": [], "source": ["import os\n", "\n", "import gradio as gr\n", "\n", "\n", "def list_files(path):\n", "    try:\n", "        return os.listdir(path)\n", "    except (FileNotFoundError, PermissionError) as e:\n", "        return [f\"Error: {e}\"]\n", "\n", "\n", "with gr.Blocks() as demo:\n", "    gr.Markdown(\n", "        \"# Server Functions Demo\\nClick 'Load Files' to list files in the directory.\"\n", "    )\n", "    filetree = gr.HTML(\n", "        value=os.path.abspath(''),\n", "        html_template=\"\"\"\n", "            <div>\n", "                <p>Directory: <strong>${value}</strong></p>\n", "                <div class='tree'></div>\n", "                <button class='load-btn'>Load Files</button>\n", "            </div>\n", "        \"\"\",\n", "        js_on_load=\"\"\"\n", "            const loadBtn = element.querySelector('.load-btn');\n", "            const tree = element.querySelector('.tree');\n", "            loadBtn.addEventListener('click', async () => {\n", "                const files = await server.list_files(props.value);\n", "                tree.innerHTML = '';\n", "                files.forEach(file => {\n", "                    const fileEl = document.createElement('div');\n", "                    fileEl.textContent = file;\n", "                    tree.appendChild(fileEl);\n", "                });\n", "            });\n", "        \"\"\",\n", "        server_functions=[list_files],\n", "    )\n", "\n", "\n", "if __name__ == \"__main__\":\n", "    demo.launch()\n"]}], "metadata": {}, "nbformat": 4, "nbformat_minor": 5}