In the past, in tview, I hadn't handled the EventError event. But as one user reported, this gets fired when the user closes the terminal when the application is still running so it should be handled.
Now it turns out I'm getting EventError after a suspended screen resumes. Here's some code reproduce this:
package main
import (
"fmt"
"os"
"os/exec"
"github.com/gdamore/tcell/v2"
)
func main() {
s, e := tcell.NewScreen()
if e != nil {
fmt.Fprintf(os.Stderr, "%v\n", e)
os.Exit(1)
}
if e := s.Init(); e != nil {
fmt.Fprintf(os.Stderr, "%v\n", e)
os.Exit(1)
}
for {
switch ev := s.PollEvent().(type) {
case *tcell.EventError:
s.Fini()
panic(ev) // This fires with EOF after we return from vim.
case *tcell.EventKey:
if ev.Key() == tcell.KeyEscape {
s.Fini()
os.Exit(0)
} else if ev.Rune() == 's' { // Press "s" to suspend and start vim.
if err := s.Suspend(); err != nil {
panic(err)
}
cmd := exec.Command("vim", "/tmp/foo")
cmd.Stdout = os.Stdout
cmd.Stdin = os.Stdin
_ = cmd.Run()
if err := s.Resume(); err != nil {
panic(err)
}
}
}
}
}Press s to suspend the screen and start vim. When you exit vim, the application panics with "EOF" after the EventError is handled. (It's not vim, this happens with any command.)
Any idea why this happens?
In the past, in
tview, I hadn't handled theEventErrorevent. But as one user reported, this gets fired when the user closes the terminal when the application is still running so it should be handled.Now it turns out I'm getting
EventErrorafter a suspended screen resumes. Here's some code reproduce this:Press s to suspend the screen and start
vim. When you exitvim, the application panics with "EOF" after theEventErroris handled. (It's notvim, this happens with any command.)Any idea why this happens?