/ ink / components / NoSelect.tsx
NoSelect.tsx
 1  import { c as _c } from "react/compiler-runtime";
 2  import React, { type PropsWithChildren } from 'react';
 3  import Box, { type Props as BoxProps } from './Box.js';
 4  type Props = Omit<BoxProps, 'noSelect'> & {
 5    /**
 6     * Extend the exclusion zone from column 0 to this box's right edge,
 7     * for every row this box occupies. Use for gutters rendered inside a
 8     * wider indented container (e.g. a diff inside a tool message row):
 9     * without this, a multi-row drag picks up the container's leading
10     * indent on rows below the prefix.
11     *
12     * @default false
13     */
14    fromLeftEdge?: boolean;
15  };
16  
17  /**
18   * Marks its contents as non-selectable in fullscreen text selection.
19   * Cells inside this box are skipped by both the selection highlight and
20   * the copied text — the gutter stays visually unchanged while the user
21   * drags, making it clear what will be copied.
22   *
23   * Use to fence off gutters (line numbers, diff +/- sigils, list bullets)
24   * so click-drag over rendered code yields clean pasteable content:
25   *
26   *   <Box flexDirection="row">
27   *     <NoSelect fromLeftEdge><Text dimColor> 42 +</Text></NoSelect>
28   *     <Text>const x = 1</Text>
29   *   </Box>
30   *
31   * Only affects alt-screen text selection (<AlternateScreen> with mouse
32   * tracking). No-op in the main-screen scrollback render where the
33   * terminal's native selection is used instead.
34   */
35  export function NoSelect(t0) {
36    const $ = _c(8);
37    let boxProps;
38    let children;
39    let fromLeftEdge;
40    if ($[0] !== t0) {
41      ({
42        children,
43        fromLeftEdge,
44        ...boxProps
45      } = t0);
46      $[0] = t0;
47      $[1] = boxProps;
48      $[2] = children;
49      $[3] = fromLeftEdge;
50    } else {
51      boxProps = $[1];
52      children = $[2];
53      fromLeftEdge = $[3];
54    }
55    const t1 = fromLeftEdge ? "from-left-edge" : true;
56    let t2;
57    if ($[4] !== boxProps || $[5] !== children || $[6] !== t1) {
58      t2 = <Box {...boxProps} noSelect={t1}>{children}</Box>;
59      $[4] = boxProps;
60      $[5] = children;
61      $[6] = t1;
62      $[7] = t2;
63    } else {
64      t2 = $[7];
65    }
66    return t2;
67  }
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