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|
use textmode::Textmode as _;
pub struct State {
readline: crate::readline::Readline,
history: crate::history::History,
focus: Focus,
output: textmode::Output,
escape: bool,
action: async_std::channel::Sender<crate::action::Action>,
}
impl State {
pub fn new(
action: async_std::channel::Sender<crate::action::Action>,
output: textmode::Output,
) -> Self {
let readline = crate::readline::Readline::new(action.clone());
let history = crate::history::History::new(action.clone());
let focus = Focus::Readline;
Self {
readline,
history,
focus,
output,
escape: false,
action,
}
}
pub async fn render(&mut self) -> anyhow::Result<()> {
self.output.clear();
match self.focus {
Focus::Readline => {
self.history
.render(&mut self.output, self.readline.lines(), None)
.await?;
self.readline.render(&mut self.output, true).await?;
}
Focus::History(idx) => {
self.history.render(&mut self.output, 0, Some(idx)).await?;
}
}
self.output.refresh().await?;
Ok(())
}
pub async fn handle_action(&mut self, action: crate::action::Action) {
match action {
crate::action::Action::Render => {
self.render().await.unwrap();
}
crate::action::Action::Run(ref cmd) => {
self.history.run(cmd).await.unwrap();
}
crate::action::Action::UpdateFocus(new_focus) => {
self.focus = new_focus;
self.render().await.unwrap();
}
crate::action::Action::Resize(new_size) => {
self.readline.resize(new_size).await;
self.history.resize(new_size).await;
self.output.set_size(new_size.0, new_size.1);
self.output.hard_refresh().await.unwrap();
self.render().await.unwrap();
}
}
}
pub async fn handle_input(&mut self, key: textmode::Key) -> bool {
if self.escape {
let mut ret = true;
match key {
textmode::Key::Ctrl(b'e') => {
ret = false; // fall through and handle normally
}
textmode::Key::Char('f') => {
if let Focus::History(idx) = self.focus {
self.history.toggle_fullscreen(idx).await;
self.render().await.unwrap();
}
}
textmode::Key::Char('j') => {
let new_focus = match self.focus {
Focus::History(idx) => {
if idx >= self.history.entry_count() - 1 {
Focus::Readline
} else {
Focus::History(idx + 1)
}
}
Focus::Readline => Focus::Readline,
};
self.focus = new_focus;
self.render().await.unwrap();
}
textmode::Key::Char('k') => {
let new_focus = match self.focus {
Focus::History(idx) => {
if idx == 0 {
Focus::History(0)
} else {
Focus::History(idx - 1)
}
}
Focus::Readline => {
Focus::History(self.history.entry_count() - 1)
}
};
self.focus = new_focus;
self.render().await.unwrap();
}
textmode::Key::Char('r') => {
self.focus = Focus::Readline;
self.render().await.unwrap();
}
_ => {}
}
self.escape = false;
if ret {
return false;
}
} else if key == textmode::Key::Ctrl(b'e') {
self.escape = true;
return false;
}
match self.focus {
Focus::Readline => self.readline.handle_key(key).await,
Focus::History(idx) => self.history.handle_key(key, idx).await,
}
}
pub async fn resize(&mut self) {
let size = terminal_size::terminal_size().map_or(
(24, 80),
|(terminal_size::Width(w), terminal_size::Height(h))| (h, w),
);
self.action
.send(crate::action::Action::Resize(size))
.await
.unwrap();
}
}
#[derive(Copy, Clone, Debug)]
pub enum Focus {
Readline,
History(usize),
}
|
