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feat: impl ClearScreen with crossterm's Clear (#813)

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* feat: add ClearDisplay event

Signed-off-by: tison <wander4096@gmail.com>

* take 2 - reimpl clear_screen

Signed-off-by: tison <wander4096@gmail.com>

---------

Signed-off-by: tison <wander4096@gmail.com>
This commit is contained in:
tison 2024-08-16 01:27:07 +08:00 committed by GitHub
parent ad56a23d05
commit f2b414c678
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1 changed files with 7 additions and 12 deletions
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19
src/painting/painter.rs
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@ -510,23 +510,18 @@ impl Painter {
/// Clear the screen by printing enough whitespace to start the prompt or
/// other output back at the first line of the terminal.
pub(crate) fn clear_screen(&mut self) -> Result<()> {
self.stdout.queue(cursor::Hide)?;
let (_, num_lines) = terminal::size()?;
for _ in 0..2 * num_lines {
self.stdout.queue(Print("\n"))?;
}
self.stdout.queue(MoveTo(0, 0))?;
self.stdout.queue(cursor::Show)?;
self.stdout.flush()?;
self.stdout
.queue(Clear(ClearType::All))?
.queue(MoveTo(0, 0))?
.flush()?;
self.initialize_prompt_position(None)
}
pub(crate) fn clear_scrollback(&mut self) -> Result<()> {
self.stdout
.queue(crossterm::terminal::Clear(ClearType::All))?
.queue(crossterm::terminal::Clear(ClearType::Purge))?
.queue(cursor::MoveTo(0, 0))?
.queue(Clear(ClearType::All))?
.queue(Clear(ClearType::Purge))?
.queue(MoveTo(0, 0))?
.flush()?;
self.initialize_prompt_position(None)
}