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Triple-C/app/src/components/terminal/filePathLinkProvider.ts
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/**
* xterm `ILinkProvider` for file paths in the buffer.
*
* Registered after `WebLinksAddon` so URLs are claimed first; `findFilePathLinks`
* also refuses anything inside a `scheme://` span, so the two never overlap.
* Ranges are 1-based on both axes with an *inclusive* end column (xterm's
* contract), and `provideLinks`' row is 1-based while `getLine` is 0-based.
*/
import type { ILink, ILinkProvider, Terminal } from "@xterm/xterm";
import { findFilePathLinks, type FilePathMatch } from "../../lib/filePathLinks";
import { joinWrappedRows, offsetToCell } from "../../lib/xtermLineJoin";
export interface FilePathHover {
/** `path` is the raw matched path — relative paths stay relative. */
show(path: string): void;
hide(): void;
}
export function createFilePathLinkProvider(
term: Pick<Terminal, "buffer">,
onOpen: (match: FilePathMatch) => void,
gate: (event: MouseEvent) => boolean,
hover?: FilePathHover,
): ILinkProvider {
return {
provideLinks(bufferLineNumber, callback) {
const row = bufferLineNumber - 1;
const line = term.buffer.active.getLine(row);
if (!line) return callback(undefined);
const joined = joinWrappedRows(term.buffer.active, row);
// `offsetToCell` has no row to map onto when nothing was joined.
if (joined.rowStarts.length === 0) return callback(undefined);
const matches = findFilePathLinks(joined.text);
if (matches.length === 0) return callback(undefined);
const links: ILink[] = matches
.map((m): ILink => ({
range: { start: offsetToCell(joined, m.start), end: offsetToCell(joined, m.end - 1) },
text: joined.text.slice(m.start, m.end),
decorations: { pointerCursor: true, underline: true },
activate: (event) => {
if (!gate(event)) return;
onOpen(m);
},
hover: () => hover?.show(m.path),
leave: () => hover?.hide(),
}))
// Only links that touch the row being asked about (xterm asks per row).
.filter((l) => l.range.start.y <= bufferLineNumber && l.range.end.y >= bufferLineNumber);
callback(links.length ? links : undefined);
},
};
}