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tui/password: make lock emoji blink at 500ms via repeating timer

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Agent-Logs-Url: https://github.com/kovidgoyal/kitty/sessions/3ee6840f-29cc-43bb-a4b6-bf9ae604ea11

Co-authored-by: kovidgoyal <1308621+kovidgoyal@users.noreply.github.com>
This commit is contained in:
copilot-swe-agent[bot]
2026-04-01 02:51:40 +00:00
committed by GitHub
parent 8aa83221e8
commit 1853c48561
1 changed files with 16 additions and 2 deletions
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18
tools/tui/password.go
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@@ -6,6 +6,7 @@ import (
"errors"
"fmt"
"strings"
"time"
"github.com/kovidgoyal/kitty/tools/tui/loop"
"github.com/kovidgoyal/kitty/tools/wcswidth"
@@ -21,6 +22,7 @@ func (self *KilledBySignal) Error() string { return self.Msg }
var Canceled = errors.New("Canceled by user")
const password_symbol = "🔒"
const blink_interval = 500 * time.Millisecond
func ReadPassword(prompt string, kill_if_signaled bool) (password string, err error) {
lp, err := loop.New(loop.NoAlternateScreen, loop.NoRestoreColors, loop.FullKeyboardProtocol)
@@ -30,6 +32,7 @@ func ReadPassword(prompt string, kill_if_signaled bool) (password string, err er
}
capspress_was_locked := false
has_caps_lock := false
lock_visible := true
redraw_prompt := func() {
lp.QueueWriteString("\r")
@@ -37,12 +40,23 @@ func ReadPassword(prompt string, kill_if_signaled bool) (password string, err er
if has_caps_lock {
lp.QueueWriteString("\x1b[31m[CapsLock on!]\x1b[39m ")
}
lp.QueueWriteString(prompt + shadow + password_symbol)
symbol := password_symbol
if !lock_visible {
symbol = strings.Repeat(" ", wcswidth.Stringwidth(password_symbol))
}
lp.QueueWriteString(prompt + shadow + symbol)
}
lp.OnInitialize = func() (string, error) {
lp.SetCursorVisible(false)
lp.QueueWriteString(prompt + password_symbol)
redraw_prompt()
if _, err := lp.AddTimer(blink_interval, true, func(loop.IdType) error {
lock_visible = !lock_visible
redraw_prompt()
return nil
}); err != nil {
return "", err
}
return "", nil
}