Files
letta-code/src/cli/components/CollapsedOutputDisplay.tsx
2026-01-31 19:43:13 -08:00

84 lines
2.9 KiB
TypeScript

import { Box } from "ink";
import { memo } from "react";
import { useTerminalWidth } from "../hooks/useTerminalWidth";
import { MarkdownDisplay } from "./MarkdownDisplay";
import { Text } from "./Text";
const DEFAULT_COLLAPSED_LINES = 3;
const PREFIX_WIDTH = 5; // " ⎿ " or " "
interface CollapsedOutputDisplayProps {
output: string; // Full output from completion
maxLines?: number; // Max lines to show before collapsing (Infinity = show all)
}
/**
* Display component for bash output after completion.
* Shows first 3 lines with count of hidden lines.
* Uses proper two-column layout with width constraints for correct wrapping.
* Note: expand/collapse (ctrl+o) is deferred to a future PR.
*/
export const CollapsedOutputDisplay = memo(
({
output,
maxLines = DEFAULT_COLLAPSED_LINES,
}: CollapsedOutputDisplayProps) => {
const columns = useTerminalWidth();
const contentWidth = Math.max(0, columns - PREFIX_WIDTH);
// Keep empty lines for accurate display (don't filter them out)
const lines = output.split("\n");
// Remove trailing empty line from final newline
if (lines.length > 0 && lines[lines.length - 1] === "") {
lines.pop();
}
if (lines.length === 0) {
return null;
}
const showAll = maxLines === Infinity || maxLines >= lines.length;
const visibleLines = showAll ? lines : lines.slice(0, maxLines);
const hiddenCount = showAll ? 0 : Math.max(0, lines.length - maxLines);
return (
<Box flexDirection="column">
{/* L-bracket on first line - matches ToolCallMessageRich format " ⎿ " */}
<Box flexDirection="row">
<Box width={PREFIX_WIDTH} flexShrink={0}>
<Text>{" ⎿ "}</Text>
</Box>
<Box flexGrow={1} width={contentWidth}>
<MarkdownDisplay text={visibleLines[0] ?? ""} />
</Box>
</Box>
{/* Remaining visible lines with indent (5 spaces to align with content after bracket) */}
{visibleLines.slice(1).map((line, i) => (
// biome-ignore lint/suspicious/noArrayIndexKey: Lines are positional output, stable order within render
<Box key={i} flexDirection="row">
<Box width={PREFIX_WIDTH} flexShrink={0}>
<Text>{" "}</Text>
</Box>
<Box flexGrow={1} width={contentWidth}>
<MarkdownDisplay text={line} />
</Box>
</Box>
))}
{/* Hidden count hint */}
{hiddenCount > 0 && (
<Box flexDirection="row">
<Box width={PREFIX_WIDTH} flexShrink={0}>
<Text>{" "}</Text>
</Box>
<Box flexGrow={1} width={contentWidth}>
<Text dimColor> +{hiddenCount} lines</Text>
</Box>
</Box>
)}
</Box>
);
},
);
CollapsedOutputDisplay.displayName = "CollapsedOutputDisplay";