Refactor CSS into separate file, add size selector and prompt clear button

- Extract styles.css from inline <style> in flux-index.html
- Add image size selector with 9 preset aspect ratios (standard + XL)
- Add clear (✕) button in prompt input field
- Pass width/height to Flux pipeline API endpoint

api.py

@@ -3,7 +3,8 @@ import base64
 from io import BytesIO
 from fastapi import FastAPI, HTTPException
 from fastapi.middleware.cors import CORSMiddleware
-from pydantic import BaseModel
+from pydantic import BaseModel, model_validator
+from typing import Any
 import torch
 from diffusers import FluxPipeline
 
@@ -33,6 +34,20 @@ pipe.vae.enable_tiling()
 class ImageRequest(BaseModel):
     prompt: str
     model: str = "flux-schnell"
+    width: int = 1024
+    height: int = 1024
+
+    @model_validator(mode="before")
+    @classmethod
+    def validate_dimensions(cls, data: Any) -> Any:
+        if isinstance(data, dict):
+            width = data.get("width", 1024)
+            height = data.get("height", 1024)
+            if width % 32 != 0 or height % 32 != 0:
+                raise ValueError("Width and height must be multiples of 32")
+            if width > 2048 or height > 2048:
+                raise ValueError("Maximum width and height is 2048")
+        return data
 
 @app.post("/v1/images/generations")
 async def generate(request: ImageRequest):
@@ -42,6 +57,8 @@ async def generate(request: ImageRequest):
             guidance_scale=0.0,
             num_inference_steps=4,
             max_sequence_length=256,
+            width=request.width,
+            height=request.height,
         ).images[0]
 
         buffered = BytesIO()

flux-index.html

@@ -4,195 +4,7 @@
   <meta charset="UTF-8">
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   <title>Flux Image Generator</title>
-  <style>
+  <link rel="stylesheet" href="styles.css">
-    * { margin: 0; padding: 0; box-sizing: border-box; }
-
-    body {
-      font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
-      background: #0f0f13;
-      color: #e0e0e0;
-      min-height: 100vh;
-      display: flex;
-      flex-direction: column;
-      align-items: center;
-      padding: 2rem 1rem;
-    }
-
-    h1 {
-      font-size: 1.8rem;
-      font-weight: 600;
-      margin-bottom: 0.3rem;
-      background: linear-gradient(135deg, #a78bfa, #60a5fa);
-      -webkit-background-clip: text;
-      -webkit-text-fill-color: transparent;
-    }
-
-    .subtitle {
-      color: #666;
-      font-size: 0.85rem;
-      margin-bottom: 2rem;
-    }
-
-    .input-area {
-      width: 100%;
-      max-width: 640px;
-      display: flex;
-      gap: 0.5rem;
-      margin-bottom: 2rem;
-    }
-
-    #prompt {
-      flex: 1;
-      padding: 0.85rem 1rem;
-      font-size: 1rem;
-      border: 1px solid #2a2a35;
-      border-radius: 10px;
-      background: #1a1a24;
-      color: #e0e0e0;
-      outline: none;
-      transition: border-color 0.2s;
-    }
-
-    #prompt:focus {
-      border-color: #a78bfa;
-    }
-
-    #prompt::placeholder {
-      color: #555;
-    }
-
-    #generate-btn {
-      padding: 0.85rem 1.5rem;
-      font-size: 1rem;
-      font-weight: 600;
-      border: none;
-      border-radius: 10px;
-      background: linear-gradient(135deg, #7c3aed, #3b82f6);
-      color: white;
-      cursor: pointer;
-      transition: opacity 0.2s, transform 0.1s;
-      white-space: nowrap;
-    }
-
-    #generate-btn:hover:not(:disabled) {
-      opacity: 0.9;
-    }
-
-    #generate-btn:active:not(:disabled) {
-      transform: scale(0.97);
-    }
-
-    #generate-btn:disabled {
-      opacity: 0.5;
-      cursor: not-allowed;
-    }
-
-    .result-area {
-      width: 100%;
-      max-width: 640px;
-      display: flex;
-      flex-direction: column;
-      align-items: center;
-      gap: 1rem;
-    }
-
-    #image-container {
-      display: none;
-      flex-direction: column;
-      align-items: center;
-      gap: 1rem;
-      width: 100%;
-    }
-
-    #image-container.visible {
-      display: flex;
-    }
-
-    #result-image {
-      max-width: 100%;
-      border-radius: 12px;
-      border: 1px solid #2a2a35;
-      background: #1a1a24;
-    }
-
-    #download-btn {
-      padding: 0.7rem 1.4rem;
-      font-size: 0.9rem;
-      font-weight: 600;
-      border: 1px solid #2a2a35;
-      border-radius: 8px;
-      background: #1a1a24;
-      color: #a78bfa;
-      cursor: pointer;
-      transition: background 0.2s;
-      text-decoration: none;
-    }
-
-    #download-btn:hover {
-      background: #22222e;
-    }
-
-    .status {
-      font-size: 0.9rem;
-      color: #888;
-      text-align: center;
-      min-height: 1.4em;
-    }
-
-    .status.error {
-      color: #f87171;
-    }
-
-    .spinner {
-      display: inline-block;
-      width: 1em;
-      height: 1em;
-      margin-right: 0.5em;
-      vertical-align: -0.15em;
-      border: 2px solid #a78bfa;
-      border-right-color: transparent;
-      border-radius: 50%;
-      animation: spin 0.6s linear infinite;
-    }
-
-    @keyframes spin {
-      to { transform: rotate(360deg); }
-    }
-
-    .config {
-      width: 100%;
-      max-width: 640px;
-      margin-bottom: 1.5rem;
-      padding: 0.8rem 1rem;
-      background: #1a1a24;
-      border: 1px solid #2a2a35;
-      border-radius: 10px;
-      display: flex;
-      align-items: center;
-      gap: 0.5rem;
-      font-size: 0.85rem;
-      color: #888;
-    }
-
-    .config label {
-      white-space: nowrap;
-    }
-
-    .config input {
-      flex: 1;
-      padding: 0.35rem 0.5rem;
-      font-size: 0.85rem;
-      border: 1px solid #2a2a35;
-      border-radius: 6px;
-      background: #0f0f13;
-      color: #e0e0e0;
-      outline: none;
-    }
-
-    .config input:focus {
-      border-color: #a78bfa;
-    }
-  </style>
 </head>
 <body>
   <h1>Flux Image Generator</h1>
@@ -203,8 +15,27 @@
     <input id="api-url" value="http://192.168.2.154:5005/v1/images/generations" />
   </div>
 
+  <div class="config">
+    <label for="size-select">Size:</label>
+    <select id="size-select">
+      <option value="1024x1024">1024x1024 (1:1)</option>
+      <option value="1920x1088">1920x1088 (16:9)</option>
+      <option value="1088x1920">1088x1920 (9:16)</option>
+      <option value="1376x1024">1376x1024 (4:3)</option>
+      <option value="1024x1376">1024x1376 (3:4)</option>
+      <option value="1536x1024">1536x1024 (3:2)</option>
+      <option value="1024x1536">1024x1536 (2:3)</option>
+      <option value="2048x2048">2048x2048 (1:1 XL)</option>
+      <option value="2048x1152">2048x1152 (16:9 XL)</option>
+      <option value="1152x2048">1152x2048 (9:16 XL)</option>
+    </select>
+  </div>
+
   <div class="input-area">
-    <input id="prompt" type="text" placeholder="Describe the image you want to create..." autofocus />
+    <div class="prompt-wrapper">
+      <input id="prompt" type="text" placeholder="Describe the image you want to create..." autofocus />
+      <button id="clear-btn" class="clear-btn" title="Clear">✕</button>
+    </div>
     <button id="generate-btn">Generate</button>
   </div>
 
@@ -219,6 +50,8 @@
 
   <script>
     const promptInput = document.getElementById('prompt');
+    const clearBtn = document.getElementById('clear-btn');
+    const sizeSelect = document.getElementById('size-select');
     const generateBtn = document.getElementById('generate-btn');
     const apiInput = document.getElementById('api-url');
     const statusEl = document.getElementById('status');
@@ -250,10 +83,11 @@
       imageContainer.classList.remove('visible');
 
       try {
+        const [width, height] = sizeSelect.value.split('x').map(Number);
         const response = await fetch(apiUrl, {
           method: 'POST',
           headers: { 'Content-Type': 'application/json' },
-          body: JSON.stringify({ prompt, model: 'flux-schnell' })
+          body: JSON.stringify({ prompt, model: 'flux-schnell', width, height })
         });
 
         if (!response.ok) {
@@ -290,6 +124,13 @@
     promptInput.addEventListener('keydown', (e) => {
       if (e.key === 'Enter') generate();
     });
+    clearBtn.addEventListener('click', () => {
+      promptInput.value = '';
+      promptInput.focus();
+    });
+    promptInput.addEventListener('focus', () => {
+      promptInput.select();
+    });
   </script>
 </body>
 </html>

styles.css

@@ -0,0 +1,229 @@
+* { margin: 0; padding: 0; box-sizing: border-box; }
+
+body {
+  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
+  background: #0f0f13;
+  color: #e0e0e0;
+  min-height: 100vh;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  padding: 2rem 1rem;
+}
+
+h1 {
+  font-size: 1.8rem;
+  font-weight: 600;
+  margin-bottom: 0.3rem;
+  background: linear-gradient(135deg, #a78bfa, #60a5fa);
+  -webkit-background-clip: text;
+  -webkit-text-fill-color: transparent;
+}
+
+.subtitle {
+  color: #666;
+  font-size: 0.85rem;
+  margin-bottom: 2rem;
+}
+
+.input-area {
+  width: 100%;
+  max-width: 640px;
+  display: flex;
+  gap: 0.5rem;
+  margin-bottom: 2rem;
+}
+
+#prompt {
+  flex: 1;
+  padding: 0.85rem 1rem;
+  font-size: 1rem;
+  border: 1px solid #2a2a35;
+  border-radius: 10px;
+  background: #1a1a24;
+  color: #e0e0e0;
+  outline: none;
+  transition: border-color 0.2s;
+}
+
+#prompt:focus {
+  border-color: #a78bfa;
+}
+
+#prompt::placeholder {
+  color: #555;
+}
+
+#generate-btn {
+  padding: 0.85rem 1.5rem;
+  font-size: 1rem;
+  font-weight: 600;
+  border: none;
+  border-radius: 10px;
+  background: linear-gradient(135deg, #7c3aed, #3b82f6);
+  color: white;
+  cursor: pointer;
+  transition: opacity 0.2s, transform 0.1s;
+  white-space: nowrap;
+}
+
+#generate-btn:hover:not(:disabled) {
+  opacity: 0.9;
+}
+
+#generate-btn:active:not(:disabled) {
+  transform: scale(0.97);
+}
+
+#generate-btn:disabled {
+  opacity: 0.5;
+  cursor: not-allowed;
+}
+
+.result-area {
+  width: 100%;
+  max-width: 640px;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  gap: 1rem;
+}
+
+#image-container {
+  display: none;
+  flex-direction: column;
+  align-items: center;
+  gap: 1rem;
+  width: 100%;
+}
+
+#image-container.visible {
+  display: flex;
+}
+
+#result-image {
+  max-width: 100%;
+  border-radius: 12px;
+  border: 1px solid #2a2a35;
+  background: #1a1a24;
+}
+
+#download-btn {
+  padding: 0.7rem 1.4rem;
+  font-size: 0.9rem;
+  font-weight: 600;
+  border: 1px solid #2a2a35;
+  border-radius: 8px;
+  background: #1a1a24;
+  color: #a78bfa;
+  cursor: pointer;
+  transition: background 0.2s;
+  text-decoration: none;
+}
+
+#download-btn:hover {
+  background: #22222e;
+}
+
+.status {
+  font-size: 0.9rem;
+  color: #888;
+  text-align: center;
+  min-height: 1.4em;
+}
+
+.status.error {
+  color: #f87171;
+}
+
+.spinner {
+  display: inline-block;
+  width: 1em;
+  height: 1em;
+  margin-right: 0.5em;
+  vertical-align: -0.15em;
+  border: 2px solid #a78bfa;
+  border-right-color: transparent;
+  border-radius: 50%;
+  animation: spin 0.6s linear infinite;
+}
+
+@keyframes spin {
+  to { transform: rotate(360deg); }
+}
+
+.config {
+  width: 100%;
+  max-width: 640px;
+  margin-bottom: 1.5rem;
+  padding: 0.8rem 1rem;
+  background: #1a1a24;
+  border: 1px solid #2a2a35;
+  border-radius: 10px;
+  display: flex;
+  align-items: center;
+  gap: 0.5rem;
+  font-size: 0.85rem;
+  color: #888;
+}
+
+.config label {
+  white-space: nowrap;
+}
+
+.config input {
+  flex: 1;
+  padding: 0.35rem 0.5rem;
+  font-size: 0.85rem;
+  border: 1px solid #2a2a35;
+  border-radius: 6px;
+  background: #0f0f13;
+  color: #e0e0e0;
+  outline: none;
+}
+
+.config input:focus,
+.config select:focus {
+  border-color: #a78bfa;
+}
+
+.config select {
+  flex: 1;
+  padding: 0.35rem 0.5rem;
+  font-size: 0.85rem;
+  border: 1px solid #2a2a35;
+  border-radius: 6px;
+  background: #0f0f13;
+  color: #e0e0e0;
+  outline: none;
+  cursor: pointer;
+}
+
+.prompt-wrapper {
+  flex: 1;
+  position: relative;
+  display: flex;
+  align-items: center;
+}
+
+.prompt-wrapper #prompt {
+  padding-right: 2.5rem;
+}
+
+.clear-btn {
+  position: absolute;
+  right: 0.6rem;
+  background: none;
+  border: none;
+  color: #555;
+  font-size: 1rem;
+  cursor: pointer;
+  padding: 0.3rem;
+  line-height: 1;
+  transition: color 0.2s;
+  z-index: 1;
+}
+
+.clear-btn:hover {
+  color: #a78bfa;
+}