ERNIE-Image-Turbo / index.html
Amir Cohen
feat: add optional lora_id/lora_scale support for per-request LoRA loading
a575c6c
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
<title>ERNIE Image Turbo</title>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
<style>
:root {
--bg-body: #f5f5f7;
--bg-surface: rgba(255, 255, 255, 0.7);
--border-subtle: rgba(0, 0, 0, 0.05);
--text-primary: #1d1d1f;
--text-secondary: #86868b;
--accent: #000000;
--accent-hover: #333333;
--glass-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
}
@media (prefers-color-scheme: dark) {
:root {
--bg-body: #000000;
--bg-surface: rgba(28, 28, 30, 0.7);
--border-subtle: rgba(255, 255, 255, 0.1);
--text-primary: #f5f5f7;
--text-secondary: #86868b;
--accent: #ffffff;
--accent-hover: #e5e5e5;
--glass-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}
}
* {
box-sizing: border-box;
margin: 0;
padding: 0;
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
}
body {
font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
background-color: var(--bg-body);
color: var(--text-primary);
min-height: 100vh;
display: flex;
align-items: center;
justify-content: center;
padding: 2rem;
overflow: hidden;
transition: background-color 0.3s ease;
}
main {
display: flex;
width: 100%;
max-width: 1200px;
height: calc(100vh - 4rem);
gap: 2rem;
}
/* Elements */
.panel {
background: var(--bg-surface);
backdrop-filter: blur(40px);
-webkit-backdrop-filter: blur(40px);
border: 1px solid var(--border-subtle);
border-radius: 32px;
box-shadow: var(--glass-shadow);
}
/* Inputs */
.sidebar {
width: 320px;
padding: 2.5rem;
display: flex;
flex-direction: column;
gap: 1.5rem;
flex-shrink: 0;
z-index: 2;
overflow-y: auto;
}
.header h1 {
font-size: 1.5rem;
font-weight: 600;
letter-spacing: -0.5px;
margin-bottom: 0.25rem;
}
.header p {
color: var(--text-secondary);
font-size: 0.9rem;
font-weight: 400;
}
.control-group {
display: flex;
flex-direction: column;
gap: 0.75rem;
flex: 1;
min-height: 80px;
}
textarea {
flex: 1;
width: 100%;
background: rgba(120, 120, 128, 0.05);
border: 1px solid var(--border-subtle);
border-radius: 20px;
padding: 1.25rem;
color: var(--text-primary);
font-family: inherit;
font-size: 1.05rem;
line-height: 1.4;
resize: none;
transition: all 0.2s ease;
}
textarea:focus {
outline: none;
background: rgba(120, 120, 128, 0.1);
border-color: rgba(120, 120, 128, 0.2);
}
textarea::placeholder {
color: var(--text-secondary);
font-weight: 400;
}
/* Advanced controls */
.advanced-section {
display: flex;
flex-direction: column;
gap: 1rem;
}
.advanced-title {
font-size: 0.72rem;
font-weight: 600;
letter-spacing: 0.08em;
text-transform: uppercase;
color: var(--text-secondary);
}
.preset-grid {
display: grid;
grid-template-columns: repeat(3, 1fr);
gap: 0.4rem;
}
.preset-btn {
background: rgba(120, 120, 128, 0.05);
border: 1px solid var(--border-subtle);
border-radius: 12px;
padding: 0.5rem 0.2rem;
font-size: 0.7rem;
font-weight: 500;
color: var(--text-secondary);
cursor: pointer;
transition: all 0.2s ease;
text-align: center;
line-height: 1.4;
}
.preset-btn:hover {
background: rgba(120, 120, 128, 0.12);
color: var(--text-primary);
}
.preset-btn.active {
background: var(--accent);
color: var(--bg-body);
border-color: var(--accent);
}
.slider-group {
display: flex;
flex-direction: column;
gap: 0.4rem;
}
.slider-label {
display: flex;
justify-content: space-between;
align-items: center;
font-size: 0.82rem;
color: var(--text-secondary);
}
.slider-label span:last-child {
font-weight: 600;
color: var(--text-primary);
min-width: 2.5rem;
text-align: right;
}
input[type="text"] {
width: 100%;
background: rgba(120, 120, 128, 0.05);
border: 1px solid var(--border-subtle);
border-radius: 12px;
padding: 0.6rem 0.9rem;
color: var(--text-primary);
font-family: inherit;
font-size: 0.85rem;
transition: all 0.2s ease;
}
input[type="text"]:focus {
outline: none;
background: rgba(120, 120, 128, 0.1);
border-color: rgba(120, 120, 128, 0.2);
}
input[type="text"]::placeholder {
color: var(--text-secondary);
}
input[type="range"] {
-webkit-appearance: none;
appearance: none;
width: 100%;
height: 4px;
background: rgba(120, 120, 128, 0.15);
border-radius: 2px;
outline: none;
}
input[type="range"]::-webkit-slider-thumb {
-webkit-appearance: none;
appearance: none;
width: 18px;
height: 18px;
background: var(--accent);
border-radius: 50%;
cursor: pointer;
transition: transform 0.15s ease;
}
input[type="range"]::-webkit-slider-thumb:hover {
transform: scale(1.2);
}
.toggle-row {
display: flex;
justify-content: space-between;
align-items: center;
font-size: 0.82rem;
color: var(--text-secondary);
}
.toggle-switch {
position: relative;
width: 36px;
height: 20px;
flex-shrink: 0;
}
.toggle-switch input {
opacity: 0;
width: 0;
height: 0;
}
.toggle-track {
position: absolute;
inset: 0;
background: rgba(120, 120, 128, 0.2);
border-radius: 20px;
cursor: pointer;
transition: background 0.2s ease;
}
.toggle-track::after {
content: '';
position: absolute;
left: 3px;
top: 3px;
width: 14px;
height: 14px;
background: white;
border-radius: 50%;
transition: transform 0.2s ease;
}
.toggle-switch input:checked + .toggle-track {
background: var(--accent);
}
.toggle-switch input:checked + .toggle-track::after {
transform: translateX(16px);
}
.btn-generate {
background-color: var(--accent);
color: var(--bg-body);
border: none;
padding: 1.1rem;
border-radius: 100px; /* Pill shape */
font-size: 1.05rem;
font-weight: 600;
cursor: pointer;
transition: transform 0.2s cubic-bezier(0.2, 0.8, 0.2, 1), background-color 0.2s;
display: flex;
justify-content: center;
align-items: center;
gap: 0.5rem;
flex-shrink: 0;
}
.btn-generate:hover {
transform: scale(0.98);
background-color: var(--accent-hover);
}
.btn-generate:disabled {
opacity: 0.5;
cursor: not-allowed;
transform: none;
}
/* Workspace */
.workspace {
flex: 1;
position: relative;
display: flex;
align-items: center;
justify-content: center;
padding: 2rem;
overflow: hidden;
z-index: 1;
}
.image-container {
width: 100%;
height: 100%;
display: flex;
align-items: center;
justify-content: center;
position: relative;
}
#result-image {
max-width: 100%;
max-height: 100%;
object-fit: contain;
border-radius: 16px;
opacity: 0;
transform: scale(0.98);
transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1);
box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}
#result-image.loaded {
opacity: 1;
transform: scale(1);
}
.empty-state {
position: absolute;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
gap: 1rem;
color: var(--text-secondary);
text-align: center;
transition: opacity 0.4s ease;
}
.empty-state i {
font-size: 3rem;
opacity: 0.5;
margin-bottom: 0.5rem;
}
.empty-state h3 {
font-size: 1.2rem;
font-weight: 500;
color: var(--text-primary);
}
/* Loading Overlay */
.loading-overlay {
position: absolute;
inset: 0;
background: var(--bg-surface);
backdrop-filter: blur(20px);
-webkit-backdrop-filter: blur(20px);
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
gap: 1.2rem;
opacity: 0;
pointer-events: none;
transition: opacity 0.3s ease;
z-index: 10;
border-radius: inherit;
}
.loading-overlay.active {
opacity: 1;
pointer-events: all;
}
.spinner {
width: 40px;
height: 40px;
border: 3px solid var(--border-subtle);
border-top-color: var(--text-primary);
border-radius: 50%;
animation: spin 1s linear infinite;
}
@keyframes spin {
to { transform: rotate(360deg); }
}
.loading-text {
font-size: 1rem;
font-weight: 500;
color: var(--text-primary);
letter-spacing: -0.2px;
animation: pulse 1.5s ease-in-out infinite;
}
@keyframes pulse {
0%, 100% { opacity: 1; }
50% { opacity: 0.6; }
}
/* Error */
.error-message {
position: absolute;
top: 2rem;
left: 50%;
transform: translateX(-50%) translateY(-20px);
background: #ff3b30;
color: white;
padding: 1rem 1.5rem;
border-radius: 100px;
font-weight: 500;
font-size: 0.95rem;
opacity: 0;
pointer-events: none;
transition: all 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
box-shadow: 0 4px 16px rgba(255, 59, 48, 0.4);
z-index: 20;
display: flex;
align-items: center;
gap: 0.75rem;
}
.error-message.visible {
opacity: 1;
transform: translateX(-50%) translateY(0);
}
.download-btn {
position: absolute;
bottom: 2rem;
right: 2rem;
background: var(--bg-surface);
backdrop-filter: blur(20px);
-webkit-backdrop-filter: blur(20px);
border: 1px solid var(--border-subtle);
color: var(--text-primary);
width: 44px;
height: 44px;
border-radius: 50%;
display: flex;
align-items: center;
justify-content: center;
cursor: pointer;
transition: all 0.2s ease;
opacity: 0;
pointer-events: none;
z-index: 5;
box-shadow: var(--glass-shadow);
}
.download-btn.visible {
opacity: 1;
pointer-events: all;
}
.download-btn:hover {
transform: scale(1.05);
}
@media (max-width: 1024px) {
body {
padding: 0;
align-items: flex-end;
}
main {
flex-direction: column-reverse; /* Image on top, controls on bottom */
padding: 0;
gap: 0;
height: 100dvh;
}
.sidebar {
width: 100%;
height: 55vh;
border-radius: 32px 32px 0 0;
padding-bottom: 2.5rem;
border-bottom: none;
border-left: none;
border-right: none;
}
.workspace {
height: 45vh;
border-radius: 0;
border-top: none;
border-left: none;
border-right: none;
background: transparent;
box-shadow: none;
}
}
</style>
</head>
<body>
<main>
<!-- Sidebar Controls -->
<aside class="sidebar panel">
<div class="header">
<h1>ERNIE Image Turbo</h1>
<p>High-Fidelity Generation</p>
</div>
<div class="control-group">
<textarea id="prompt" placeholder="A futuristic city with flying cars at sunset, highly detailed..."></textarea>
</div>
<!-- Resolution Presets -->
<div class="advanced-section">
<div class="advanced-title">Resolution</div>
<div class="preset-grid" id="preset-grid">
<button class="preset-btn active" data-w="1024" data-h="1024">1024×1024<br>Square</button>
<button class="preset-btn" data-w="1264" data-h="848">1264×848<br>Landscape</button>
<button class="preset-btn" data-w="848" data-h="1264">848×1264<br>Portrait</button>
<button class="preset-btn" data-w="1376" data-h="768">1376×768<br>Wide</button>
<button class="preset-btn" data-w="768" data-h="1376">768×1376<br>Tall</button>
<button class="preset-btn" data-w="1200" data-h="896">1200×896<br>Photo</button>
</div>
</div>
<!-- Guidance Scale -->
<div class="advanced-section">
<div class="advanced-title">Parameters</div>
<div class="slider-group">
<div class="slider-label">
<span>Guidance Scale</span>
<span id="guidance-val">1.0</span>
</div>
<input type="range" id="guidance-scale" min="1.0" max="7.0" step="0.5" value="1.0">
</div>
<div class="slider-group">
<div class="slider-label">
<span>Inference Steps</span>
<span id="steps-val">8</span>
</div>
<input type="range" id="num-steps" min="4" max="30" step="1" value="8">
</div>
<div class="toggle-row">
<span>Prompt Enhancer</span>
<label class="toggle-switch">
<input type="checkbox" id="use-pe" checked>
<span class="toggle-track"></span>
</label>
</div>
</div>
<!-- LoRA -->
<div class="advanced-section">
<div class="advanced-title">LoRA</div>
<input type="text" id="lora-id" placeholder="owner/my-lora (optional)">
<div class="slider-group" id="lora-scale-group" style="display:none">
<div class="slider-label">
<span>LoRA Scale</span>
<span id="lora-scale-val">0.8</span>
</div>
<input type="range" id="lora-scale" min="0" max="1.5" step="0.05" value="0.8">
</div>
</div>
<button class="btn-generate" id="generate-btn">
Generate
</button>
</aside>
<!-- Canvas Workspace -->
<section class="workspace panel">
<div class="error-message" id="error-toast">
<i class="fas fa-exclamation-circle"></i>
<span id="error-text">An error occurred.</span>
</div>
<div class="image-container">
<div class="empty-state" id="empty-state">
<i class="fa-solid fa-wand-magic-sparkles"></i>
<h3>Imagine anything</h3>
<p>Enter a prompt and hit generate</p>
</div>
<img id="result-image" alt="Generated Image" src="" />
</div>
<a id="download-link" download="ernie-generation.png" class="download-btn">
<i class="fas fa-arrow-down"></i>
</a>
<div class="loading-overlay" id="loading-overlay">
<div class="spinner"></div>
<div class="loading-text" id="status-text">Synthesizing...</div>
</div>
</section>
</main>
<!-- Gradio JS Client -->
<script type="module">
import { Client } from "https://cdn.jsdelivr.net/npm/@gradio/client/dist/index.min.js";
// ----- UI Elements -----
const promptInput = document.getElementById('prompt');
const generateBtn = document.getElementById('generate-btn');
const resultImage = document.getElementById('result-image');
const emptyState = document.getElementById('empty-state');
const loadingOverlay = document.getElementById('loading-overlay');
const statusText = document.getElementById('status-text');
const errorToast = document.getElementById('error-toast');
const errorText = document.getElementById('error-text');
const downloadBtn = document.getElementById('download-link');
const guidanceSlider = document.getElementById('guidance-scale');
const guidanceVal = document.getElementById('guidance-val');
const stepsSlider = document.getElementById('num-steps');
const stepsVal = document.getElementById('steps-val');
const presetGrid = document.getElementById('preset-grid');
const usePeToggle = document.getElementById('use-pe');
const loraIdInput = document.getElementById('lora-id');
const loraScaleSlider = document.getElementById('lora-scale');
const loraScaleVal = document.getElementById('lora-scale-val');
const loraScaleGroup = document.getElementById('lora-scale-group');
// ----- State -----
let selectedWidth = 1024;
let selectedHeight = 1024;
// ----- Preset Buttons -----
presetGrid.addEventListener('click', (e) => {
const btn = e.target.closest('.preset-btn');
if (!btn) return;
document.querySelectorAll('.preset-btn').forEach(b => b.classList.remove('active'));
btn.classList.add('active');
selectedWidth = parseInt(btn.dataset.w);
selectedHeight = parseInt(btn.dataset.h);
});
// ----- Slider Labels -----
guidanceSlider.addEventListener('input', () => {
guidanceVal.textContent = parseFloat(guidanceSlider.value).toFixed(1);
});
stepsSlider.addEventListener('input', () => {
stepsVal.textContent = stepsSlider.value;
});
loraIdInput.addEventListener('input', () => {
loraScaleGroup.style.display = loraIdInput.value.trim() ? 'flex' : 'none';
});
loraScaleSlider.addEventListener('input', () => {
loraScaleVal.textContent = parseFloat(loraScaleSlider.value).toFixed(2);
});
// ----- Error Helper -----
const showError = (message) => {
errorText.textContent = message;
errorToast.classList.add('visible');
setTimeout(() => {
errorToast.classList.remove('visible');
}, 5000);
};
// ----- Generation Logic -----
generateBtn.addEventListener('click', async () => {
const promptStr = promptInput.value.trim();
if(!promptStr) {
showError("Please enter a prompt first.");
return;
}
try {
generateBtn.disabled = true;
loadingOverlay.classList.add('active');
statusText.textContent = "Connecting to backend...";
const client = await Client.connect(window.location.origin);
statusText.textContent = "Generating...";
const loraId = loraIdInput.value.trim();
const params = {
prompt: promptStr,
width: selectedWidth,
height: selectedHeight,
guidance_scale: parseFloat(guidanceSlider.value),
num_inference_steps: parseInt(stepsSlider.value),
use_prompt_enhancer: usePeToggle.checked,
...(loraId && {
lora_id: loraId,
lora_scale: parseFloat(loraScaleSlider.value)
})
};
const result = await client.predict("/generate_image", params);
if(result && result.data && result.data[0]) {
const imgUrl = result.data[0].url;
resultImage.classList.remove('loaded');
await new Promise(resolve => setTimeout(resolve, 300));
resultImage.src = imgUrl;
downloadBtn.href = imgUrl;
resultImage.onload = () => {
emptyState.style.opacity = '0';
resultImage.classList.add('loaded');
downloadBtn.classList.add('visible');
};
} else {
showError("Failed to get image from backend.");
}
} catch (err) {
console.error("Generation Error:", err);
showError(err.message || "An unexpected error occurred during generation.");
} finally {
generateBtn.disabled = false;
loadingOverlay.classList.remove('active');
}
});
// Add Enter key support
promptInput.addEventListener('keydown', (e) => {
if (e.key === 'Enter' && !e.shiftKey) {
e.preventDefault();
generateBtn.click();
}
});
</script>
</body>
</html>