55 lines
1.4 KiB
JavaScript
Executable file
55 lines
1.4 KiB
JavaScript
Executable file
'use strict';
|
|
const { fromEvent } = require('rxjs');
|
|
const { filter, map, share, takeUntil } = require('rxjs/operators');
|
|
|
|
function normalizeKeypressEvents(value, key) {
|
|
return { value, key: key || {} };
|
|
}
|
|
|
|
module.exports = function (rl) {
|
|
const keypress = fromEvent(rl.input, 'keypress', normalizeKeypressEvents)
|
|
.pipe(takeUntil(fromEvent(rl, 'close')))
|
|
// Ignore `enter` key. On the readline, we only care about the `line` event.
|
|
.pipe(filter(({ key }) => key.name !== 'enter' && key.name !== 'return'));
|
|
|
|
return {
|
|
line: fromEvent(rl, 'line'),
|
|
keypress,
|
|
|
|
normalizedUpKey: keypress.pipe(
|
|
filter(
|
|
({ key }) =>
|
|
key.name === 'up' || key.name === 'k' || (key.name === 'p' && key.ctrl)
|
|
),
|
|
share()
|
|
),
|
|
|
|
normalizedDownKey: keypress.pipe(
|
|
filter(
|
|
({ key }) =>
|
|
key.name === 'down' || key.name === 'j' || (key.name === 'n' && key.ctrl)
|
|
),
|
|
share()
|
|
),
|
|
|
|
numberKey: keypress.pipe(
|
|
filter((e) => e.value && '123456789'.indexOf(e.value) >= 0),
|
|
map((e) => Number(e.value)),
|
|
share()
|
|
),
|
|
|
|
spaceKey: keypress.pipe(
|
|
filter(({ key }) => key && key.name === 'space'),
|
|
share()
|
|
),
|
|
aKey: keypress.pipe(
|
|
filter(({ key }) => key && key.name === 'a'),
|
|
share()
|
|
),
|
|
iKey: keypress.pipe(
|
|
filter(({ key }) => key && key.name === 'i'),
|
|
share()
|
|
),
|
|
};
|
|
};
|