add redraw command (#4354)

* add redraw command

* update docs

* Update helix-term/src/commands/typed.rs

Co-authored-by: Michael Davis <mcarsondavis@gmail.com>

* update docs

Co-authored-by: Michael Davis <mcarsondavis@gmail.com>
pull/5164/head
Roberto Vidal 2 years ago committed by GitHub
parent 42ad1a9e04
commit f916915b53
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GPG Key ID: 4AEE18F83AFDEB23

@ -73,3 +73,4 @@
| `:pipe` | Pipe each selection to the shell command. |
| `:pipe-to` | Pipe each selection to the shell command, ignoring output. |
| `:run-shell-command`, `:sh` | Run a shell command |
| `:redraw` | Clear and re-render the whole UI |

@ -1808,6 +1808,28 @@ fn run_shell_command(
Ok(())
}
fn redraw(
cx: &mut compositor::Context,
_args: &[Cow<str>],
event: PromptEvent,
) -> anyhow::Result<()> {
if event != PromptEvent::Validate {
return Ok(());
}
let callback = Box::pin(async move {
let call: job::Callback = Box::new(|_editor, compositor| {
compositor.clear().expect("unable to redraw");
});
Ok(call)
});
cx.jobs.callback(callback);
Ok(())
}
pub const TYPABLE_COMMAND_LIST: &[TypableCommand] = &[
TypableCommand {
name: "quit",
@ -2323,6 +2345,13 @@ pub const TYPABLE_COMMAND_LIST: &[TypableCommand] = &[
fun: run_shell_command,
completer: Some(completers::directory),
},
TypableCommand {
name: "redraw",
aliases: &[],
doc: "Clear and re-render the whole UI",
fun: redraw,
completer: None,
},
];
pub static TYPABLE_COMMAND_MAP: Lazy<HashMap<&'static str, &'static TypableCommand>> =

@ -197,6 +197,10 @@ impl Compositor {
.find(|component| component.id() == Some(id))
.and_then(|component| component.as_any_mut().downcast_mut())
}
pub fn clear(&mut self) -> std::io::Result<()> {
self.terminal.clear()
}
}
// View casting, taken straight from Cursive

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