f160c0510b
Promotes Translate from an inline button under the input pane to the primary 56x56 FAB at the bottom-right corner. Camera FAB becomes the secondary in the stack, just above. Both share a single .fab base class; positioning via .fab-primary / .fab-secondary. - Translate icon: Material Symbols `translate` (28 px). - Pulsing-ring `busy` animation while a translation runs, since the icon-only button can't show "Translating…" text anymore. - body padding-bottom bumped to ~9 rem so the output pane scrolls clear of the stacked FABs. - ⌘/Ctrl-Enter still triggers translate via the existing CodeMirror keymap; tooltip text updated.
1148 lines
40 KiB
HTML
1148 lines
40 KiB
HTML
<!doctype html>
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<html lang="en">
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<head>
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<meta charset="utf-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1" />
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<title>finrod — translator</title>
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<link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Cg fill='%23d4a566'%3E%3Cpath d='M16 1 L18 14 L31 16 L18 18 L16 31 L14 18 L1 16 L14 14 Z'/%3E%3Cpath d='M16 4 L22 16 L16 28 L10 16 Z' opacity='.55'/%3E%3C/g%3E%3C/svg%3E" />
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<link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:opsz,wght,FILL,GRAD@24,400,0,0&display=block" />
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<style>
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:root {
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color-scheme: light dark;
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--bg: #faf8f3;
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--fg: #2b2620;
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--muted: #6b6358;
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--accent: #7a5a2f;
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--border: #d8d0bf;
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--panel: #fff;
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--error: #a13b2c;
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}
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@media (prefers-color-scheme: dark) {
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:root {
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--bg: #1c1a17;
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--fg: #e6dfd0;
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--muted: #968c7a;
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--accent: #d4a566;
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--border: #3a352e;
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--panel: #25221d;
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--error: #e08070;
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}
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}
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* { box-sizing: border-box; }
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body {
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font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
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background: var(--bg);
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color: var(--fg);
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margin: 0;
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/* extra bottom padding so content scrolls clear of the stacked FABs */
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padding: 2rem 1rem calc(9rem + env(safe-area-inset-bottom, 0px)) 1rem;
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}
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.wrap { max-width: 960px; margin: 0 auto; }
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h1 {
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font-weight: 300;
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letter-spacing: 0.05em;
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margin: 0 0 0.25rem 0;
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}
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.sub { color: var(--muted); font-size: 0.9rem; margin-bottom: 1.5rem; }
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.controls {
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display: grid;
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grid-template-columns: 1fr 1fr 1fr;
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gap: 0.75rem;
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margin-bottom: 1rem;
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}
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@media (max-width: 640px) {
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.controls { grid-template-columns: 1fr; }
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}
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label { display: block; font-size: 0.75rem; color: var(--muted); margin-bottom: 0.25rem; text-transform: uppercase; letter-spacing: 0.08em; }
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select, textarea, button {
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font: inherit;
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color: var(--fg);
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background: var(--panel);
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border: 1px solid var(--border);
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border-radius: 6px;
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padding: 0.6rem 0.75rem;
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width: 100%;
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}
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textarea { resize: vertical; min-height: 180px; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
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.panes {
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display: grid;
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grid-template-columns: 1fr 1fr;
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gap: 1rem;
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}
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@media (max-width: 640px) {
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.panes { grid-template-columns: 1fr; }
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}
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button {
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background: var(--accent);
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color: #fff;
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border: none;
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cursor: pointer;
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padding: 0.7rem 1.5rem;
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font-weight: 500;
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letter-spacing: 0.05em;
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width: auto;
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margin: 1rem 0;
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}
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button:disabled { opacity: 0.5; cursor: progress; }
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.output {
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white-space: pre-wrap;
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min-height: 180px;
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padding: 0.6rem 0.75rem;
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border: 1px solid var(--border);
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border-radius: 6px;
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background: var(--panel);
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font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
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}
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.meta { font-size: 0.8rem; color: var(--muted); margin-top: 0.5rem; display: flex; align-items: center; gap: 0.5rem; }
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.error { color: var(--error); }
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.output.streaming {
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border-color: var(--accent);
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box-shadow: 0 0 0 1px var(--accent), 0 0 12px -4px var(--accent);
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}
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.caret {
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display: inline-block;
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width: 0.5em;
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height: 1em;
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vertical-align: text-bottom;
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background: var(--accent);
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margin-left: 1px;
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animation: blink 1s steps(2, start) infinite;
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}
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@keyframes blink { to { opacity: 0; } }
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.spinner {
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width: 14px;
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height: 14px;
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border: 2px solid var(--border);
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border-top-color: var(--accent);
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border-radius: 50%;
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animation: spin 0.8s linear infinite;
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display: inline-block;
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}
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@keyframes spin { to { transform: rotate(360deg); } }
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.pulse {
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display: inline-block;
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width: 8px;
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height: 8px;
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border-radius: 50%;
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background: var(--accent);
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animation: pulse 1.2s ease-in-out infinite;
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}
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@keyframes pulse {
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0%, 100% { opacity: 0.3; transform: scale(0.85); }
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50% { opacity: 1; transform: scale(1.15); }
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}
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.hot-status {
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font-size: 0.8rem;
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color: var(--muted);
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margin: 0.25rem 0 0.75rem 0;
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display: flex;
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align-items: center;
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gap: 0.5rem;
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min-height: 1.2em;
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}
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.hot-dot {
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display: inline-block;
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width: 8px;
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height: 8px;
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border-radius: 50%;
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background: #e07a3e;
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box-shadow: 0 0 6px #e07a3e;
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}
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.hot-status.idle { opacity: 0.55; }
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.hot-status.idle .hot-dot {
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background: var(--border);
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box-shadow: none;
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}
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/* Material Symbols Outlined — used for FAB camera, rotate, reset, check */
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.material-symbols-outlined {
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font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
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line-height: 1;
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vertical-align: middle;
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user-select: none;
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}
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/* Floating action buttons — stacked at bottom-right.
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Translate is the primary action (closest to the thumb), Scan sits above. */
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.fab {
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position: fixed;
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right: calc(1.5rem + env(safe-area-inset-right, 0px));
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width: 56px;
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height: 56px;
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padding: 0;
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margin: 0;
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border-radius: 50%;
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background: var(--accent);
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color: #fff;
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border: none;
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cursor: pointer;
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box-shadow: 0 4px 14px rgba(0, 0, 0, 0.35);
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z-index: 100;
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display: flex;
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align-items: center;
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justify-content: center;
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transition: transform 0.15s, box-shadow 0.15s;
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}
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.fab .material-symbols-outlined { font-size: 28px; }
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.fab:hover:not(:disabled) { transform: scale(1.06); }
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.fab:disabled { opacity: 0.55; cursor: progress; }
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.fab-primary {
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bottom: calc(1.5rem + env(safe-area-inset-bottom, 0px));
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}
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.fab-secondary {
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/* sits above the primary: 56 (primary height) + 0.75rem gap + base offset */
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bottom: calc(1.5rem + 56px + 0.75rem + env(safe-area-inset-bottom, 0px));
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}
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.fab.busy {
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animation: fab-pulse 1.4s ease-in-out infinite;
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}
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@keyframes fab-pulse {
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0%, 100% { box-shadow: 0 4px 14px rgba(0, 0, 0, 0.35); }
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50% { box-shadow: 0 4px 14px rgba(0, 0, 0, 0.35), 0 0 0 8px rgba(224, 122, 62, 0.35); }
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}
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.scan-status {
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font-size: 0.75rem;
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color: var(--muted);
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margin-top: 0.4rem;
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min-height: 1em;
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}
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.scan-status.error { color: var(--error); }
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/* Crop / rotate modal (cropperjs lives inside .modal-body) */
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.modal-backdrop {
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position: fixed;
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inset: 0;
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background: rgba(0, 0, 0, 0.78);
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display: flex;
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align-items: center;
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justify-content: center;
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/* Generous side padding pushes the modal in from Android's edge-swipe
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gesture zone (~24dp from screen edges triggers back/home). */
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padding: 1rem max(1rem, env(safe-area-inset-right, 0px)) 1rem max(1rem, env(safe-area-inset-left, 0px));
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z-index: 1000;
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}
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.modal {
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background: var(--bg);
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border: 1px solid var(--border);
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border-radius: 8px;
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width: min(90vw, 900px);
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max-height: 90vh;
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display: flex;
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flex-direction: column;
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}
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.modal-header {
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padding: 0.75rem 1rem;
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border-bottom: 1px solid var(--border);
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font-size: 0.85rem;
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color: var(--muted);
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letter-spacing: 0.04em;
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}
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.modal-body {
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flex: 1;
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min-height: 0;
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max-height: 70vh;
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background: #000;
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/* Inset so cropper's corner handles never sit on a screen-edge gesture zone.
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2 rem + backdrop 1 rem = ~48 px clear from screen edges on a phone. */
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padding: 2rem;
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}
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.modal-body img { display: block; max-width: 100%; }
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.modal-footer {
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padding: 0.75rem 1rem;
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border-top: 1px solid var(--border);
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display: flex;
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gap: 0.5rem;
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justify-content: space-between;
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flex-wrap: wrap;
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}
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.modal-footer .group {
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display: flex;
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gap: 0.5rem;
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flex-wrap: wrap;
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}
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.modal-btn {
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background: transparent;
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border: 1px solid var(--border);
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color: var(--muted);
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padding: 0.4rem 0.9rem;
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border-radius: 4px;
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cursor: pointer;
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margin: 0;
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width: auto;
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font-size: 0.75rem;
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letter-spacing: 0.04em;
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text-transform: uppercase;
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display: inline-flex;
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align-items: center;
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justify-content: center;
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gap: 0.35rem;
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}
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.modal-btn .material-symbols-outlined { font-size: 20px; }
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.modal-btn.icon { padding: 0.35rem 0.55rem; min-width: 2.4rem; }
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.modal-btn:hover { border-color: var(--accent); color: var(--fg); }
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.modal-btn.active {
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background: var(--accent);
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color: #fff;
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border-color: var(--accent);
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}
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.modal-btn.primary {
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background: var(--accent);
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color: #fff;
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border-color: var(--accent);
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}
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.modal-btn.primary.icon {
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padding: 0.55rem 1.1rem;
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min-width: 3.2rem;
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}
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.modal-btn.primary.icon .material-symbols-outlined { font-size: 24px; }
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.modal-btn.primary:hover { color: #fff; }
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/* Camera viewfinder modal */
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.cam-body {
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display: flex;
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align-items: center;
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justify-content: center;
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padding: 0 !important;
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}
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.cam-body video {
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max-width: 100%;
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max-height: 70vh;
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display: block;
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}
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/* On mobile: full-bleed modal, buttons hug the screen edges. Body padding
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still ~16 px so cropper corner handles stay outside Android's edge-swipe
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gesture zone — tapping a button doesn't trigger it, but dragging into
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the very edge does. */
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@media (max-width: 640px) {
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.modal-backdrop { padding: 0; }
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.modal {
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width: 100vw;
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max-width: 100vw;
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height: 100dvh; /* dynamic viewport — accounts for mobile browser chrome */
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max-height: 100dvh;
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border: 0;
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border-radius: 0;
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}
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.modal-header {
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flex-shrink: 0; /* never get squeezed out by the body */
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padding-top: max(0.75rem, env(safe-area-inset-top, 0px));
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}
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.modal-body {
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flex: 1 1 auto;
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min-height: 0;
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padding:
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0.5rem
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max(1rem, env(safe-area-inset-right, 0px))
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0.5rem
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max(1rem, env(safe-area-inset-left, 0px));
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max-height: none;
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}
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.cam-body { padding: 0 !important; }
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.cam-body video {
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width: 100%;
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height: 100%;
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max-height: none;
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object-fit: contain;
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}
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.modal-footer {
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flex-shrink: 0;
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background: var(--bg); /* explicit so it always reads clearly */
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padding:
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0.5rem
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max(0.5rem, env(safe-area-inset-right, 0px))
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max(0.5rem, env(safe-area-inset-bottom, 0px))
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max(0.5rem, env(safe-area-inset-left, 0px));
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}
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}
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/* CodeMirror editor host — matches .output styling so input & output align */
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.cm-editor {
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min-height: 180px;
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border: 1px solid var(--border);
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border-radius: 6px;
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background: var(--panel);
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font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
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font-size: 1rem; /* match .output's inherited body size — CM6 defaults are smaller */
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}
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.cm-editor.cm-focused {
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outline: none;
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border-color: var(--accent);
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}
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.cm-scroller { padding: 0.6rem 0.75rem; }
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.cm-content { caret-color: var(--accent); }
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/* vim's command-line / status hint inherits readable colors */
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.cm-vim-panel {
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background: var(--panel);
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color: var(--fg);
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border-top: 1px solid var(--border);
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font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
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}
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</style>
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</head>
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<body>
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<div class="wrap">
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<h1>finrod</h1>
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<div class="sub">Translation via Ollama · loremaster of tongues</div>
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<div class="controls">
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<div>
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<label for="source">From</label>
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<select id="source"></select>
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</div>
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<div>
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<label for="target">To</label>
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<select id="target"></select>
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</div>
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<div>
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<label for="model">Model</label>
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<select id="model"></select>
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</div>
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</div>
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<div id="hot-status" class="hot-status idle">
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<span class="hot-dot"></span>
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<span id="hot-status-text">No model loaded</span>
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</div>
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<div class="panes">
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<div>
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<label for="input">Input</label>
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<div id="input"></div>
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<input type="file" id="scan-input" accept="image/*" hidden>
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<div id="scan-status" class="scan-status"></div>
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</div>
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<div>
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<label for="output">Translation</label>
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<div id="output" class="output"></div>
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</div>
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</div>
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|
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<div id="meta" class="meta"></div>
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</div>
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|
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<button type="button" id="scan-btn" class="fab fab-secondary" aria-label="Scan image (OCR)" title="Scan image (OCR)">
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<span class="material-symbols-outlined">photo_camera</span>
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</button>
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<button type="button" id="go" class="fab fab-primary" aria-label="Translate" title="Translate (⌘/Ctrl + Enter)">
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<span class="material-symbols-outlined">translate</span>
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</button>
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|
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<script type="module">
|
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import { EditorView, keymap, placeholder } from "https://esm.sh/@codemirror/view@6";
|
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import { EditorState } from "https://esm.sh/@codemirror/state@6";
|
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import { history, defaultKeymap, historyKeymap } from "https://esm.sh/@codemirror/commands@6";
|
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import { vim, Vim } from "https://esm.sh/@replit/codemirror-vim@6";
|
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|
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const LANGUAGES = [
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"English", "Portuguese (Brazil)", "Portuguese (Portugal)", "Spanish",
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"French", "German", "Italian", "Dutch", "Polish", "Russian",
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"Japanese", "Korean", "Chinese (Simplified)", "Chinese (Traditional)",
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"Arabic", "Hindi", "Turkish", "Swedish", "Norwegian", "Danish",
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"Finnish", "Greek", "Hebrew", "Czech", "Hungarian", "Romanian",
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"Ukrainian", "Vietnamese", "Thai", "Indonesian",
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];
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|
|
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const sourceSel = document.getElementById("source");
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const targetSel = document.getElementById("target");
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const modelSel = document.getElementById("model");
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const output = document.getElementById("output");
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const goBtn = document.getElementById("go");
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const meta = document.getElementById("meta");
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const hotStatus = document.getElementById("hot-status");
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const hotStatusText = document.getElementById("hot-status-text");
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const scanBtn = document.getElementById("scan-btn");
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const scanInput = document.getElementById("scan-input");
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const scanStatus = document.getElementById("scan-status");
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|
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// --- OCR via Tesseract.js (lazy-loaded on first use from esm.sh) --------
|
|
// Tesseract language codes are ISO 639-2 — map from our "From" dropdown.
|
|
const TESS_LANGS = {
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"English": "eng",
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"Portuguese (Brazil)": "por",
|
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"Portuguese (Portugal)": "por",
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"Spanish": "spa",
|
|
"French": "fra",
|
|
"German": "deu",
|
|
"Italian": "ita",
|
|
"Dutch": "nld",
|
|
"Polish": "pol",
|
|
"Russian": "rus",
|
|
"Japanese": "jpn",
|
|
"Korean": "kor",
|
|
"Chinese (Simplified)": "chi_sim",
|
|
"Chinese (Traditional)": "chi_tra",
|
|
"Arabic": "ara",
|
|
"Hindi": "hin",
|
|
"Turkish": "tur",
|
|
"Swedish": "swe",
|
|
"Norwegian": "nor",
|
|
"Danish": "dan",
|
|
"Finnish": "fin",
|
|
"Greek": "ell",
|
|
"Hebrew": "heb",
|
|
"Czech": "ces",
|
|
"Hungarian": "hun",
|
|
"Romanian": "ron",
|
|
"Ukrainian": "ukr",
|
|
"Vietnamese": "vie",
|
|
"Thai": "tha",
|
|
"Indonesian": "ind",
|
|
};
|
|
// "Auto-detect" — load common European set together; tesseract picks best.
|
|
const TESS_AUTO = "eng+por+deu+nld";
|
|
|
|
function setScanStatus(text, { error = false } = {}) {
|
|
scanStatus.textContent = text;
|
|
scanStatus.classList.toggle("error", error);
|
|
}
|
|
|
|
// Crop + rotate modal. Lazy-loads cropperjs + its CSS from esm.sh on
|
|
// first use. Resolves with a Blob (cropped, rotation baked in) or null
|
|
// if the user cancelled.
|
|
let cropperCssLoaded = false;
|
|
async function openCropper(file) {
|
|
if (!cropperCssLoaded) {
|
|
const link = document.createElement("link");
|
|
link.rel = "stylesheet";
|
|
link.href = "https://esm.sh/cropperjs@1/dist/cropper.min.css";
|
|
document.head.appendChild(link);
|
|
cropperCssLoaded = true;
|
|
}
|
|
const { default: Cropper } = await import("https://esm.sh/cropperjs@1");
|
|
|
|
return new Promise((resolve) => {
|
|
const backdrop = document.createElement("div");
|
|
backdrop.className = "modal-backdrop";
|
|
const modal = document.createElement("div");
|
|
modal.className = "modal";
|
|
const url = URL.createObjectURL(file);
|
|
modal.innerHTML = `
|
|
<div class="modal-header">Drag on the image to select the text region</div>
|
|
<div class="modal-body"><img alt="" /></div>
|
|
<div class="modal-footer">
|
|
<div class="group">
|
|
<button class="modal-btn icon" data-act="rotL" title="Rotate left"><span class="material-symbols-outlined">rotate_left</span></button>
|
|
<button class="modal-btn icon" data-act="rotR" title="Rotate right"><span class="material-symbols-outlined">rotate_right</span></button>
|
|
<button class="modal-btn icon" data-act="invert" title="Invert colours (for light text on dark background)"><span class="material-symbols-outlined">invert_colors</span></button>
|
|
</div>
|
|
<div class="group">
|
|
<button class="modal-btn" data-act="cancel">Cancel</button>
|
|
<button class="modal-btn primary icon" data-act="use" title="Use this"><span class="material-symbols-outlined">check</span></button>
|
|
</div>
|
|
</div>
|
|
`;
|
|
backdrop.appendChild(modal);
|
|
document.body.appendChild(backdrop);
|
|
|
|
const img = modal.querySelector("img");
|
|
img.src = url;
|
|
const cropper = new Cropper(img, {
|
|
viewMode: 1,
|
|
// No default crop box — user draws their own by dragging on the image.
|
|
autoCrop: false,
|
|
background: false,
|
|
// Honour EXIF orientation from the phone shot.
|
|
checkOrientation: true,
|
|
});
|
|
|
|
let invert = false;
|
|
|
|
const cleanup = () => {
|
|
cropper.destroy();
|
|
URL.revokeObjectURL(url);
|
|
backdrop.remove();
|
|
document.removeEventListener("keydown", onKey);
|
|
};
|
|
const finish = (result) => { cleanup(); resolve(result); };
|
|
|
|
const onKey = (e) => {
|
|
if (e.key === "Escape") finish(null);
|
|
else if (e.key === "Enter") emit("use");
|
|
};
|
|
document.addEventListener("keydown", onKey);
|
|
|
|
function emit(act, btn) {
|
|
if (act === "rotL") cropper.rotate(-90);
|
|
else if (act === "rotR") cropper.rotate(90);
|
|
else if (act === "invert") {
|
|
invert = !invert;
|
|
btn?.classList.toggle("active", invert);
|
|
}
|
|
else if (act === "cancel") finish(null);
|
|
else if (act === "use") {
|
|
// With autoCrop:false, if the user never drew a region, force a
|
|
// default crop covering the full image so getCroppedCanvas() works.
|
|
if (!cropper.cropped) cropper.crop();
|
|
const canvas = cropper.getCroppedCanvas({
|
|
maxWidth: OCR_MAX_DIM * 2,
|
|
maxHeight: OCR_MAX_DIM * 2,
|
|
});
|
|
if (canvas) canvas.toBlob(blob => finish({ blob, invert }), "image/png");
|
|
else finish(null);
|
|
}
|
|
}
|
|
|
|
modal.addEventListener("click", (e) => {
|
|
const btn = e.target.closest("[data-act]");
|
|
if (btn) emit(btn.dataset.act, btn);
|
|
});
|
|
// Click on backdrop (outside the modal) = cancel
|
|
backdrop.addEventListener("click", (e) => {
|
|
if (e.target === backdrop) finish(null);
|
|
});
|
|
});
|
|
}
|
|
|
|
// Downscale to at most OCR_MAX_DIM on the long edge AND binarise with
|
|
// Bradley's adaptive threshold. Phone photos have gradients, shadows
|
|
// and texture that Tesseract trained on scanned pages doesn't expect,
|
|
// so it hallucinates text. Adaptive thresholding turns the input into
|
|
// a binary "ink vs paper" mask which is what the recogniser wants.
|
|
const OCR_MAX_DIM = 1600;
|
|
const OCR_CONFIDENCE_MIN = 60; // word-level confidence (0-100)
|
|
|
|
async function preprocessForOCR(file, { invert = false } = {}) {
|
|
const bitmap = await createImageBitmap(file);
|
|
const long = Math.max(bitmap.width, bitmap.height);
|
|
const scale = Math.min(1, OCR_MAX_DIM / long);
|
|
const w = Math.round(bitmap.width * scale);
|
|
const h = Math.round(bitmap.height * scale);
|
|
|
|
const canvas = document.createElement("canvas");
|
|
canvas.width = w;
|
|
canvas.height = h;
|
|
const ctx = canvas.getContext("2d");
|
|
ctx.drawImage(bitmap, 0, 0, w, h);
|
|
bitmap.close?.();
|
|
|
|
binarizeAdaptive(ctx, w, h, { invert });
|
|
|
|
// PNG, not JPEG — JPEG would re-blur the freshly-sharp B/W edges.
|
|
const blob = await new Promise(resolve => canvas.toBlob(resolve, "image/png"));
|
|
return { blob, w, h, scaled: scale < 1, origLong: long };
|
|
}
|
|
|
|
// Bradley/Roth adaptive threshold: compare each pixel against the
|
|
// mean of a local window. Computed in O(N) total via an integral
|
|
// image. Output is a 3-channel B/W image (R=G=B=0 or 255).
|
|
// invert=true flips the grayscale before thresholding so white-on-dark
|
|
// text comes out as the expected black-on-white for Tesseract.
|
|
function binarizeAdaptive(ctx, w, h, { invert = false } = {}) {
|
|
const imgData = ctx.getImageData(0, 0, w, h);
|
|
const data = imgData.data;
|
|
|
|
// 1. Grayscale via BT.601 luminance
|
|
const gray = new Uint8Array(w * h);
|
|
for (let i = 0, j = 0; i < data.length; i += 4, j++) {
|
|
gray[j] = (data[i] * 0.299 + data[i + 1] * 0.587 + data[i + 2] * 0.114) | 0;
|
|
}
|
|
if (invert) {
|
|
for (let i = 0; i < gray.length; i++) gray[i] = 255 - gray[i];
|
|
}
|
|
|
|
// 2. Integral image (summed-area table)
|
|
const integral = new Float64Array(w * h);
|
|
for (let y = 0; y < h; y++) {
|
|
let rowSum = 0;
|
|
const yw = y * w;
|
|
for (let x = 0; x < w; x++) {
|
|
rowSum += gray[yw + x];
|
|
integral[yw + x] = rowSum + (y > 0 ? integral[yw - w + x] : 0);
|
|
}
|
|
}
|
|
|
|
// 3. Threshold: pixel becomes black if it's > T% below the local mean
|
|
const winSize = Math.max(15, Math.floor(w / 32)) | 1; // odd window
|
|
const halfWin = (winSize - 1) >> 1;
|
|
const T = 0.15;
|
|
|
|
for (let y = 0; y < h; y++) {
|
|
const yw = y * w;
|
|
const y1 = Math.max(0, y - halfWin);
|
|
const y2 = Math.min(h - 1, y + halfWin);
|
|
for (let x = 0; x < w; x++) {
|
|
const x1 = Math.max(0, x - halfWin);
|
|
const x2 = Math.min(w - 1, x + halfWin);
|
|
const count = (x2 - x1 + 1) * (y2 - y1 + 1);
|
|
const A = (x1 > 0 && y1 > 0) ? integral[(y1 - 1) * w + (x1 - 1)] : 0;
|
|
const B = (y1 > 0) ? integral[(y1 - 1) * w + x2] : 0;
|
|
const C = (x1 > 0) ? integral[y2 * w + (x1 - 1)] : 0;
|
|
const D = integral[y2 * w + x2];
|
|
const mean = (D - B - C + A) / count;
|
|
const black = gray[yw + x] < mean * (1 - T) ? 0 : 255;
|
|
const idx = (yw + x) * 4;
|
|
data[idx] = data[idx + 1] = data[idx + 2] = black;
|
|
}
|
|
}
|
|
ctx.putImageData(imgData, 0, 0);
|
|
}
|
|
|
|
// Drop words below confidence threshold; re-assemble preserving line breaks.
|
|
function filterByConfidence(result, threshold = OCR_CONFIDENCE_MIN) {
|
|
const lines = result.lines || [];
|
|
if (!lines.length) return result.text || "";
|
|
const keptLines = lines.map(line => {
|
|
const words = (line.words || [])
|
|
.filter(w => (w.confidence ?? 100) >= threshold)
|
|
.map(w => w.text);
|
|
return words.length ? words.join(" ") : "";
|
|
});
|
|
// Collapse consecutive blank lines so dropped runs don't leave gaps.
|
|
return keptLines.join("\n").replace(/\n{3,}/g, "\n\n").trim();
|
|
}
|
|
|
|
async function runOCR(file) {
|
|
const src = sourceSel.value;
|
|
const lang = src === "auto" ? TESS_AUTO : (TESS_LANGS[src] || TESS_AUTO);
|
|
|
|
scanBtn.disabled = true;
|
|
setScanStatus("Loading crop editor…");
|
|
|
|
let cropResult;
|
|
try {
|
|
cropResult = await openCropper(file);
|
|
} catch (e) {
|
|
console.error(e);
|
|
setScanStatus(`Crop editor failed: ${e.message || e}`, { error: true });
|
|
scanBtn.disabled = false;
|
|
scanInput.value = "";
|
|
return;
|
|
}
|
|
if (!cropResult) {
|
|
// User cancelled
|
|
setScanStatus("");
|
|
scanBtn.disabled = false;
|
|
scanInput.value = "";
|
|
return;
|
|
}
|
|
const { blob: cropped, invert } = cropResult;
|
|
|
|
setScanStatus("Preparing image…");
|
|
const t0 = performance.now();
|
|
|
|
try {
|
|
const { blob, w, h, scaled, origLong } = await preprocessForOCR(cropped, { invert });
|
|
if (scaled) {
|
|
setScanStatus(`Preprocessed ${origLong}px → ${Math.max(w, h)}px (binarised)`);
|
|
} else {
|
|
setScanStatus(`Preprocessed ${Math.max(w, h)}px (binarised)`);
|
|
}
|
|
|
|
// Lazy import — first scan triggers the ~5 MB JS + language pack
|
|
// download; cached by the browser after that.
|
|
const { createWorker } = await import("https://esm.sh/tesseract.js@5");
|
|
const worker = await createWorker(lang, 1, {
|
|
logger: (m) => {
|
|
if (m.status === "recognizing text") {
|
|
setScanStatus(`OCR ${Math.round(m.progress * 100)}%`);
|
|
} else if (m.status) {
|
|
setScanStatus(`OCR: ${m.status}`);
|
|
}
|
|
},
|
|
});
|
|
const { data } = await worker.recognize(blob);
|
|
await worker.terminate();
|
|
|
|
const text = filterByConfidence(data);
|
|
const droppedWords = (data.words || []).filter(w => (w.confidence ?? 100) < OCR_CONFIDENCE_MIN).length;
|
|
editor.dispatch({
|
|
changes: { from: 0, to: editor.state.doc.length, insert: text },
|
|
selection: { anchor: 0 },
|
|
});
|
|
const dt = ((performance.now() - t0) / 1000).toFixed(1);
|
|
const dropped = droppedWords ? `, dropped ${droppedWords} low-confidence` : "";
|
|
setScanStatus(`OCR done in ${dt}s (${lang}${dropped})`);
|
|
} catch (e) {
|
|
console.error(e);
|
|
setScanStatus(`OCR failed: ${e.message || e}`, { error: true });
|
|
} finally {
|
|
scanBtn.disabled = false;
|
|
scanInput.value = ""; // allow re-selecting the same file
|
|
}
|
|
}
|
|
|
|
// Live camera capture via getUserMedia — bypasses the OS camera's
|
|
// "retake / use" confirm step that <input type=file capture> shows.
|
|
// Tap the shutter → frame is captured and crop modal opens immediately.
|
|
// Returns the captured Blob, "file" if the user wants the file picker,
|
|
// or null on cancel.
|
|
async function captureFromCamera() {
|
|
let stream;
|
|
try {
|
|
stream = await navigator.mediaDevices.getUserMedia({
|
|
video: { facingMode: { ideal: "environment" } },
|
|
audio: false,
|
|
});
|
|
} catch (e) {
|
|
console.warn("Camera unavailable:", e);
|
|
return "file"; // fall through to file picker
|
|
}
|
|
return new Promise((resolve) => {
|
|
const backdrop = document.createElement("div");
|
|
backdrop.className = "modal-backdrop";
|
|
const modal = document.createElement("div");
|
|
modal.className = "modal";
|
|
modal.innerHTML = `
|
|
<div class="modal-header">Aim at the text and tap the shutter</div>
|
|
<div class="modal-body cam-body"><video autoplay playsinline muted></video></div>
|
|
<div class="modal-footer">
|
|
<div class="group">
|
|
<button class="modal-btn icon" data-act="file" title="Pick from file instead"><span class="material-symbols-outlined">photo_library</span></button>
|
|
</div>
|
|
<div class="group">
|
|
<button class="modal-btn" data-act="cancel">Cancel</button>
|
|
<button class="modal-btn primary icon" data-act="shoot" title="Capture"><span class="material-symbols-outlined">photo_camera</span></button>
|
|
</div>
|
|
</div>
|
|
`;
|
|
backdrop.appendChild(modal);
|
|
document.body.appendChild(backdrop);
|
|
|
|
const video = modal.querySelector("video");
|
|
video.srcObject = stream;
|
|
|
|
const cleanup = () => {
|
|
stream.getTracks().forEach(t => t.stop());
|
|
video.srcObject = null;
|
|
backdrop.remove();
|
|
document.removeEventListener("keydown", onKey);
|
|
};
|
|
const finish = (r) => { cleanup(); resolve(r); };
|
|
|
|
const onKey = (e) => {
|
|
if (e.key === "Escape") finish(null);
|
|
};
|
|
document.addEventListener("keydown", onKey);
|
|
|
|
modal.addEventListener("click", (e) => {
|
|
const act = e.target.closest("[data-act]")?.dataset.act;
|
|
if (act === "cancel") finish(null);
|
|
else if (act === "file") finish("file");
|
|
else if (act === "shoot") {
|
|
const canvas = document.createElement("canvas");
|
|
canvas.width = video.videoWidth;
|
|
canvas.height = video.videoHeight;
|
|
canvas.getContext("2d").drawImage(video, 0, 0);
|
|
canvas.toBlob(blob => finish(blob), "image/jpeg", 0.92);
|
|
}
|
|
});
|
|
backdrop.addEventListener("click", (e) => {
|
|
if (e.target === backdrop) finish(null);
|
|
});
|
|
});
|
|
}
|
|
|
|
async function startScan() {
|
|
// On a touch device with getUserMedia, go straight to the live
|
|
// viewfinder. On desktop / no-camera, use the file picker.
|
|
if (isCoarsePointer && navigator.mediaDevices?.getUserMedia) {
|
|
const result = await captureFromCamera();
|
|
if (result === "file") {
|
|
scanInput.click();
|
|
} else if (result) {
|
|
runOCR(result);
|
|
}
|
|
return;
|
|
}
|
|
scanInput.click();
|
|
}
|
|
|
|
scanBtn.addEventListener("click", startScan);
|
|
scanInput.addEventListener("change", (e) => {
|
|
const file = e.target.files?.[0];
|
|
if (file) runOCR(file);
|
|
});
|
|
|
|
// --- CodeMirror editor (vim mode on real keyboards only) ----------------
|
|
const isCoarsePointer = window.matchMedia("(pointer: coarse)").matches;
|
|
let typingTimer;
|
|
const editor = new EditorView({
|
|
parent: document.getElementById("input"),
|
|
state: EditorState.create({
|
|
extensions: [
|
|
// vim() MUST be first per @replit/codemirror-vim docs so its keymap
|
|
// takes precedence. Skipped on touch devices — modal editing without
|
|
// a hardware Esc key on a virtual keyboard is unusable, and IME
|
|
// composition fights the vim keymap.
|
|
...(isCoarsePointer ? [] : [vim()]),
|
|
history(),
|
|
keymap.of([
|
|
{ key: "Mod-Enter", run: () => { translate(); return true; } },
|
|
...defaultKeymap,
|
|
...historyKeymap,
|
|
]),
|
|
EditorView.lineWrapping,
|
|
placeholder("Type or paste text to translate…"),
|
|
EditorView.updateListener.of(u => {
|
|
if (u.docChanged) {
|
|
clearTimeout(typingTimer);
|
|
typingTimer = setTimeout(refreshLoaded, 500);
|
|
}
|
|
}),
|
|
],
|
|
}),
|
|
});
|
|
const inputText = () => editor.state.doc.toString();
|
|
|
|
function fillLangs() {
|
|
const auto = document.createElement("option");
|
|
auto.value = "auto";
|
|
auto.textContent = "Auto-detect";
|
|
sourceSel.appendChild(auto);
|
|
for (const lang of LANGUAGES) {
|
|
const o1 = document.createElement("option");
|
|
o1.value = lang; o1.textContent = lang;
|
|
sourceSel.appendChild(o1);
|
|
const o2 = document.createElement("option");
|
|
o2.value = lang; o2.textContent = lang;
|
|
targetSel.appendChild(o2);
|
|
}
|
|
sourceSel.value = "auto";
|
|
targetSel.value = "English";
|
|
}
|
|
|
|
async function loadModels() {
|
|
try {
|
|
const r = await fetch("/api/models");
|
|
if (!r.ok) throw new Error(await r.text());
|
|
const models = await r.json();
|
|
if (models.length === 0) {
|
|
const o = document.createElement("option");
|
|
o.textContent = "(no matching models on Ollama)";
|
|
o.disabled = true;
|
|
modelSel.appendChild(o);
|
|
return;
|
|
}
|
|
for (const m of models) {
|
|
const o = document.createElement("option");
|
|
o.value = m; o.textContent = m;
|
|
modelSel.appendChild(o);
|
|
}
|
|
} catch (e) {
|
|
meta.innerHTML = `<span class="error">Could not load models: ${e}</span>`;
|
|
}
|
|
}
|
|
|
|
function setMeta({ phase, model, seconds, tokens }) {
|
|
meta.innerHTML = "";
|
|
const indicator = document.createElement("span");
|
|
if (phase === "waiting") indicator.className = "spinner";
|
|
else if (phase === "streaming") indicator.className = "pulse";
|
|
else indicator.style.display = "none";
|
|
meta.appendChild(indicator);
|
|
|
|
const label = document.createElement("span");
|
|
const parts = [];
|
|
if (phase === "waiting") parts.push("Waking model…");
|
|
else if (phase === "streaming") parts.push("Translating…");
|
|
parts.push(model);
|
|
if (seconds != null) parts.push(`${seconds.toFixed(1)}s`);
|
|
if (tokens) parts.push(`${tokens} tok`);
|
|
label.textContent = parts.join(" · ");
|
|
meta.appendChild(label);
|
|
}
|
|
|
|
async function translate() {
|
|
const text = inputText().trim();
|
|
if (!text) return;
|
|
goBtn.disabled = true;
|
|
goBtn.classList.add("busy");
|
|
output.textContent = "";
|
|
output.classList.add("streaming");
|
|
|
|
const model = modelSel.value;
|
|
const t0 = performance.now();
|
|
let firstToken = true;
|
|
let tokens = 0;
|
|
let acc = "";
|
|
|
|
const ticker = setInterval(() => {
|
|
const dt = (performance.now() - t0) / 1000;
|
|
setMeta({
|
|
phase: firstToken ? "waiting" : "streaming",
|
|
model,
|
|
seconds: dt,
|
|
tokens: firstToken ? 0 : tokens,
|
|
});
|
|
}, 100);
|
|
setMeta({ phase: "waiting", model, seconds: 0 });
|
|
|
|
try {
|
|
const r = await fetch("/api/translate", {
|
|
method: "POST",
|
|
headers: { "Content-Type": "application/json" },
|
|
body: JSON.stringify({
|
|
text,
|
|
source: sourceSel.value,
|
|
target: targetSel.value,
|
|
model,
|
|
}),
|
|
});
|
|
if (!r.ok) throw new Error(await r.text());
|
|
|
|
const reader = r.body.getReader();
|
|
const decoder = new TextDecoder();
|
|
let buf = "";
|
|
const caret = '<span class="caret"></span>';
|
|
|
|
while (true) {
|
|
const { value, done } = await reader.read();
|
|
if (done) break;
|
|
buf += decoder.decode(value, { stream: true });
|
|
let nl;
|
|
while ((nl = buf.indexOf("\n")) >= 0) {
|
|
const line = buf.slice(0, nl).trim();
|
|
buf = buf.slice(nl + 1);
|
|
if (!line) continue;
|
|
let j;
|
|
try { j = JSON.parse(line); } catch { continue; }
|
|
if (j.error) throw new Error(j.error);
|
|
if (j.response) {
|
|
if (firstToken) firstToken = false;
|
|
acc += j.response;
|
|
tokens++;
|
|
output.innerHTML =
|
|
acc.replace(/[&<>]/g, c => ({ "&": "&", "<": "<", ">": ">" }[c])) + caret;
|
|
}
|
|
}
|
|
}
|
|
const dt = (performance.now() - t0) / 1000;
|
|
output.textContent = acc;
|
|
clearInterval(ticker);
|
|
setMeta({ phase: "done", model, seconds: dt, tokens });
|
|
refreshLoaded();
|
|
} catch (e) {
|
|
clearInterval(ticker);
|
|
output.innerHTML = `<span class="error">${e.message || e}</span>`;
|
|
meta.textContent = "";
|
|
} finally {
|
|
output.classList.remove("streaming");
|
|
goBtn.disabled = false;
|
|
goBtn.classList.remove("busy");
|
|
}
|
|
}
|
|
|
|
function formatRemaining(expiresAt) {
|
|
if (!expiresAt) return null;
|
|
const ms = new Date(expiresAt).getTime() - Date.now();
|
|
if (!isFinite(ms) || ms <= 0) return null;
|
|
// Ollama's keep_alive=-1 returns expires_at far in the future (year 4001).
|
|
// Any realistic finite keep_alive is hours at most, so treat >7 days
|
|
// as "never unloads" and drop the misleading suffix.
|
|
if (ms > 7 * 24 * 60 * 60 * 1000) return null;
|
|
const totalSec = Math.floor(ms / 1000);
|
|
const mins = Math.floor(totalSec / 60);
|
|
const secs = totalSec % 60;
|
|
if (mins >= 60) {
|
|
const hrs = Math.floor(mins / 60);
|
|
const m = mins % 60;
|
|
return `${hrs}h${m ? m + "m" : ""}`;
|
|
}
|
|
if (mins > 0) return `${mins}m${secs ? secs + "s" : ""}`;
|
|
return `${secs}s`;
|
|
}
|
|
|
|
async function refreshLoaded(isInitial = false) {
|
|
let models = [];
|
|
try {
|
|
const r = await fetch("/api/loaded");
|
|
if (r.ok) {
|
|
const j = await r.json();
|
|
models = j.models || [];
|
|
}
|
|
} catch {
|
|
/* leave previous state if Ollama is briefly unreachable */
|
|
return;
|
|
}
|
|
|
|
const loadedMap = new Map(models.map(m => [m.name, m.expires_at]));
|
|
|
|
// Update dropdown options. Use textContent (option doesn't render HTML).
|
|
const optionValues = Array.from(modelSel.options, o => o.value);
|
|
for (const opt of modelSel.options) {
|
|
if (loadedMap.has(opt.value)) {
|
|
opt.textContent = `● ${opt.value}`;
|
|
} else {
|
|
opt.textContent = opt.value;
|
|
}
|
|
}
|
|
|
|
// On the very first refresh after page load, prefer a hot model as the
|
|
// dropdown default — skipping disk reload pain. Only on initial load,
|
|
// so the user's manual selection isn't yanked away while they type.
|
|
if (isInitial) {
|
|
const hot = models.find(m => optionValues.includes(m.name));
|
|
if (hot) modelSel.value = hot.name;
|
|
}
|
|
|
|
// Update status line.
|
|
if (models.length === 0) {
|
|
hotStatus.classList.add("idle");
|
|
hotStatusText.textContent = "No model loaded";
|
|
return;
|
|
}
|
|
hotStatus.classList.remove("idle");
|
|
const parts = models.map(m => {
|
|
const remaining = formatRemaining(m.expires_at);
|
|
return remaining ? `${m.name} — unloads in ${remaining}` : m.name;
|
|
});
|
|
hotStatusText.textContent = `Hot: ${parts.join(", ")}`;
|
|
}
|
|
|
|
goBtn.addEventListener("click", translate);
|
|
|
|
// Shift-H / Shift-L cycle focus across controls (vim-style Shift-Tab /
|
|
// Tab). Two paths kept in sync:
|
|
// 1. Document keydown listener — fires when focus is on a select / button
|
|
// 2. Vim normal-mode mapping (below) — fires when focus is in the editor
|
|
// Together they make Shift-H/L work everywhere, including escaping the editor.
|
|
const focusables = [
|
|
{ el: sourceSel, focus: () => sourceSel.focus() },
|
|
{ el: targetSel, focus: () => targetSel.focus() },
|
|
{ el: modelSel, focus: () => modelSel.focus() },
|
|
{ el: editor.contentDOM, focus: () => editor.focus() },
|
|
{ el: goBtn, focus: () => goBtn.focus() },
|
|
];
|
|
function moveFocus(delta) {
|
|
const ae = document.activeElement;
|
|
let idx = focusables.findIndex(f => f.el === ae || f.el.contains?.(ae));
|
|
if (idx === -1) {
|
|
focusables[delta > 0 ? 0 : focusables.length - 1].focus();
|
|
return;
|
|
}
|
|
const next = focusables[(idx + delta + focusables.length) % focusables.length];
|
|
next.focus();
|
|
}
|
|
document.addEventListener("keydown", (e) => {
|
|
if (!e.shiftKey) return;
|
|
const k = e.key.toLowerCase();
|
|
if (k !== "h" && k !== "l") return;
|
|
// Inside the editor, vim's mapCommand handles H/L (see below). Letting
|
|
// the event bubble here would double-jump.
|
|
if (editor.dom.contains(document.activeElement)) return;
|
|
e.preventDefault();
|
|
moveFocus(k === "l" ? 1 : -1);
|
|
});
|
|
|
|
// Override vim's H/L (normally "viewport top/bottom") so they exit the
|
|
// editor to the previous/next control, matching the Shift-H/L contract
|
|
// the document handler uses elsewhere.
|
|
if (!isCoarsePointer) {
|
|
Vim.defineAction("finrodFocusPrev", () => moveFocus(-1));
|
|
Vim.defineAction("finrodFocusNext", () => moveFocus(1));
|
|
Vim.mapCommand("H", "action", "finrodFocusPrev", {}, { context: "normal" });
|
|
Vim.mapCommand("L", "action", "finrodFocusNext", {}, { context: "normal" });
|
|
}
|
|
|
|
fillLangs();
|
|
loadModels().then(() => refreshLoaded(true));
|
|
</script>
|
|
</body>
|
|
</html>
|