| 1 | import type { CSSProperties } from "react"; |
| 2 | import { |
| 3 | TERMINAL_CAPTURE_FRAMES, |
| 4 | type TerminalCaptureFrameId, |
| 5 | type TerminalCaptureStyle, |
| 6 | } from "@/lib/terminal-capture.generated"; |
| 7 | |
| 8 | const BRAILLE = /[⠀-⣿]/; |
| 9 | |
| 10 | function runStyle(style: TerminalCaptureStyle): CSSProperties { |
| 11 | return { |
| 12 | color: style.fg, |
| 13 | backgroundColor: style.bg, |
| 14 | fontWeight: style.bold ? 700 : undefined, |
| 15 | fontStyle: style.italic ? "italic" : undefined, |
| 16 | opacity: style.dim ? 0.6 : undefined, |
| 17 | textDecoration: style.underline ? "underline" : style.strike ? "line-through" : undefined, |
| 18 | }; |
| 19 | } |
| 20 | |
| 21 | /** |
| 22 | * A real terminal frame as live HTML text: the PTY cells the terminal |
| 23 | * emulator parsed (lib/terminal-captures, compacted by |
| 24 | * scripts/render-terminal-capture.mjs), drawn as styled runs in the system |
| 25 | * monospace font. Nothing is retouched or staged. |
| 26 | * |
| 27 | * The whole frame always fits: the type scales with the frame's width and the |
| 28 | * grid's column count, like a screenshot, but stays live, selectable text. |
| 29 | * Assistive technology gets one summary (`label`); the glyph-by-glyph grid |
| 30 | * is presentation. Braille cells (the whale mark) are pinned to one column |
| 31 | * each, because system monospace fonts draw them from a fallback font. |
| 32 | */ |
| 33 | export function TerminalCapture({ |
| 34 | frame = "home", |
| 35 | label, |
| 36 | regionLabel, |
| 37 | }: { |
| 38 | frame?: TerminalCaptureFrameId; |
| 39 | label: string; |
| 40 | regionLabel: string; |
| 41 | }) { |
| 42 | const data = TERMINAL_CAPTURE_FRAMES[frame]; |
| 43 | const styles = data.styles as readonly TerminalCaptureStyle[]; |
| 44 | // The padding around the grid continues the frame's own top and bottom rows. |
| 45 | const top = styles[data.lines[0][0][1]].bg; |
| 46 | const bottom = styles[data.lines[data.lines.length - 1][0][1]].bg; |
| 47 | return ( |
| 48 | <div className="term-capture-scroll" role="region" aria-label={regionLabel} tabIndex={0}> |
| 49 | <pre |
| 50 | className="term-capture" |
| 51 | role="img" |
| 52 | aria-label={label} |
| 53 | data-capture-file={data.file} |
| 54 | style={{ background: `linear-gradient(${top}, ${bottom})`, ["--cols" as string]: data.cols } as CSSProperties} |
| 55 | > |
| 56 | {data.lines.map((runs, row) => ( |
| 57 | <span key={row} className="term-capture-row"> |
| 58 | {runs.map(([text, index], run) => ( |
| 59 | <span key={run} style={runStyle(styles[index])}> |
| 60 | {BRAILLE.test(text) |
| 61 | ? [...text].map((ch, i) => |
| 62 | BRAILLE.test(ch) ? ( |
| 63 | <span key={i} className="term-capture-cell"> |
| 64 | {ch} |
| 65 | </span> |
| 66 | ) : ( |
| 67 | ch |
| 68 | ), |
| 69 | ) |
| 70 | : text} |
| 71 | </span> |
| 72 | ))} |
| 73 | </span> |
| 74 | ))} |
| 75 | </pre> |
| 76 | </div> |
| 77 | ); |
| 78 | } |
| 79 |