Hugging Face's logo

Spaces:
Javedalam
/
Language-translation-in-browser
Running

App Files Community
Language-translation-in-browser
File size: 7,451 Bytes 
6944e03
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
 
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1, viewport-fit=cover" />
  <title>Simple Browser Translator — NLLB</title>
  <style>
    :root{
      --bg:#0b1220; --bg2:#0f1628; --panel:#121a2b; --border:#223050;
      --text:#e8eefc; --muted:#8ea2c7; --accent:#6ba5ff; --accent2:#2d7dff;
      --radius:14px; --shadow:0 10px 30px rgba(0,0,0,.35);
    }
    *{box-sizing:border-box}
    html,body{height:100%}
    body{
      margin:0;
      background:linear-gradient(180deg,#0b1220 0%, #0b1220 40%, #0f1525 100%);
      color:var(--text);
      font:16px/1.45 system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,Apple Color Emoji,Segoe UI Emoji;
    }
    .wrap{max-width:1100px;margin:28px auto 72px;padding:0 16px}

    header{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
    h1{margin:0;font-size:28px;font-weight:800;letter-spacing:.2px}
    h1 .brand{color:var(--accent)}
    #backend-pill{
      padding:6px 10px; border:1px solid var(--border); border-radius:999px;
      background:#0e1628; color:var(--muted); font-size:12px
    }

    .grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    @media (max-width:860px){ .grid-2{grid-template-columns:1fr} }
    .card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px}
    .card h3{margin:0 0 8px;font-size:14px;font-weight:700;color:#b9c6e4}

    select,textarea,button{
      width:100%;border-radius:12px;border:1px solid var(--border);outline:none;
      background:#0e1628;color:var(--text)
    }
    select{padding:12px;font-size:14px;font-weight:600}
    textarea{
      min-height:180px;padding:14px 16px;
      font:15px/1.5 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace
    }

    .translate-row{display:flex;align-items:center;gap:12px;margin-top:10px}
    #go{
      flex:1;padding:12px 18px;font-weight:800;border-radius:999px;cursor:pointer;
      background:linear-gradient(90deg,var(--accent) 0%,var(--accent2) 100%);
      border:none;color:white;box-shadow:var(--shadow)
    }
    .meta{font-size:12px;color:var(--muted);white-space:nowrap}

    .status{margin-top:8px;font-size:12px;color:var(--muted)}
    .output{
      min-height:180px;padding:14px 16px;white-space:pre-wrap;overflow:auto;
      border:1px solid var(--border);background:#0e1628;border-radius:12px
    }
    footer{margin-top:8px;font-size:12px;color:var(--muted)}
  </style>
</head>
<body>
  <div class="wrap">
    <header>
      <h1>Simple Browser Translator — <span class="brand">NLLB</span></h1>
      <span id="backend-pill">backend: …</span>
    </header>

    <!-- selectors -->
    <div class="grid-2">
      <div class="card">
        <h3>Source language</h3>
        <select id="src"></select>
      </div>
      <div class="card">
        <h3>Target language</h3>
        <select id="tgt"></select>
      </div>
    </div>

    <!-- input -->
    <div class="card" style="margin-top:16px">
      <h3>Input text</h3>
      <textarea id="inp" placeholder="Type or paste text here…">Hello world, this is a test.</textarea>

      <div class="translate-row">
        <button id="go">Translate</button>
        <span class="meta">Model: <code>Xenova/nllb-200-distilled-600M</code></span>
      </div>

      <div class="status" id="status">Ready.</div>
    </div>

    <!-- output -->
    <div class="card" style="margin-top:16px">
      <h3>Output</h3>
      <div class="output" id="out">—</div>
      <footer>Arabic/Urdu outputs render RTL automatically.</footer>
    </div>
  </div>

  <!-- === LOGIC (unchanged from your working code) === -->
  <script type="module">
    import { pipeline, env } from "https://cdn.jsdelivr.net/npm/@xenova/transformers@2.17.2";

    let chosenBackend='auto';
    try{
      if('gpu' in navigator && navigator.gpu){env.backends.onnx='webgpu';chosenBackend='webgpu';}
      else{env.backends.onnx='wasm';chosenBackend='wasm';}
    }catch(_){env.backends.onnx='wasm';chosenBackend='wasm';}
    document.getElementById('backend-pill').textContent=`backend: ${chosenBackend}`;

    const LANGS=[
      ["English (eng_Latn)","eng_Latn"],
      ["French (fra_Latn)","fra_Latn"],
      ["Hindi (hin_Deva)","hin_Deva"],
      ["Urdu (urd_Arab)","urd_Arab"],
      ["Arabic (arb_Arab)","arb_Arab"],
      ["Spanish (spa_Latn)","spa_Latn"],
      ["German (deu_Latn)","deu_Latn"],
      ["Bengali (ben_Beng)","ben_Beng"],
      ["Punjabi (pan_Guru)","pan_Guru"]
    ];
    const srcSel=document.getElementById('src');
    const tgtSel=document.getElementById('tgt');
    const inp=document.getElementById('inp');
    const out=document.getElementById('out');
    const status=document.getElementById('status');
    const goBtn=document.getElementById('go');

    for(const [label,code] of LANGS){
      srcSel.add(new Option(label,code));
      tgtSel.add(new Option(label,code));
    }
    srcSel.value="eng_Latn";
    tgtSel.value="arb_Arab";

    function refreshDirection(){
      const rtl=(srcSel.value==="arb_Arab"||srcSel.value==="urd_Arab");
      inp.setAttribute("dir",rtl?"rtl":"ltr");
      inp.style.textAlign=rtl?"right":"left";
    }
    srcSel.addEventListener('change',refreshDirection);
    refreshDirection();

    let translator=null,loading=false;
    async function getTranslator(){
      if(translator) return translator;
      if(loading){while(!translator) await new Promise(r=>setTimeout(r,120));return translator;}
      loading=true;
      status.innerHTML="Loading model… (first time will download weights)";
      const progress=(p)=>{
        if(!p)return;
        const{status:st,file,loaded,total}=p;
        if(st){
          const pct=(loaded&&total)?` ${(100*loaded/total).toFixed(1)}%`:"";
          status.innerHTML=`<b>${st}</b>${file?` — ${file}`:""}${pct}`;
        }
      };
      translator=await pipeline("translation","Xenova/nllb-200-distilled-600M",{progress_callback:progress});
      status.innerHTML="Model ready ✅";
      return translator;
    }
    function assertCode(code){
      if(!code||typeof code!=="string") throw new Error("Invalid language code");
      const ok=LANGS.some(([,c])=>c===code);
      if(!ok) throw new Error(`Unsupported language code: ${code}`);
      return code;
    }
    async function doTranslate(){
      try{
        goBtn.disabled=true;
        out.textContent="—";
        status.innerHTML="Preparing…";
        const text=(inp.value||"").trim();
        if(!text){status.innerHTML="Enter some text to translate.";return;}
        const src=assertCode(srcSel.value);
        const tgt=assertCode(tgtSel.value);
        if(src===tgt){status.innerHTML="Source and target are the same — translating anyway.";}
        const tr=await getTranslator();
        const output=await tr(text,{src_lang:src,tgt_lang:tgt});
        const translated=Array.isArray(output)?(output[0]?.translation_text||""):(output?.translation_text||"");
        out.textContent=translated||"(empty result)";
        status.innerHTML="Done.";
      }catch(err){
        console.error(err);
        status.innerHTML=`❌ ${err.message||err}`;
      }finally{goBtn.disabled=false;}
    }
    goBtn.addEventListener('click',doTranslate);
    inp.addEventListener('keydown',e=>{if(e.key==='Enter'&&!e.shiftKey){e.preventDefault();doTranslate();}});
  </script>
</body>
</html>