mirror of https://github.com/helix-editor/helix
lsp: Hover documentation draft.
parent
8289bd1cb0
commit
7162632eb7
@ -0,0 +1,95 @@
|
||||
use crate::compositor::{Component, Compositor, Context, EventResult};
|
||||
use crossterm::event::{Event, KeyCode, KeyEvent, KeyModifiers};
|
||||
use tui::buffer::Buffer as Surface;
|
||||
use tui::{
|
||||
layout::Rect,
|
||||
style::{Color, Style},
|
||||
widgets::{Block, Borders},
|
||||
};
|
||||
|
||||
use std::borrow::Cow;
|
||||
|
||||
use helix_core::Position;
|
||||
use helix_view::Editor;
|
||||
|
||||
pub struct Popup {
|
||||
contents: String,
|
||||
position: Position,
|
||||
}
|
||||
|
||||
impl Popup {
|
||||
// TODO: it's like a slimmed down picker, share code? (picker = menu + prompt with different
|
||||
// rendering)
|
||||
pub fn new(contents: String) -> Self {
|
||||
Self {
|
||||
contents,
|
||||
position: Position::default(),
|
||||
}
|
||||
}
|
||||
|
||||
pub fn set_position(&mut self, pos: Position) {
|
||||
self.position = pos;
|
||||
}
|
||||
}
|
||||
|
||||
impl Component for Popup {
|
||||
fn handle_event(&mut self, event: Event, cx: &mut Context) -> EventResult {
|
||||
let event = match event {
|
||||
Event::Key(event) => event,
|
||||
_ => return EventResult::Ignored,
|
||||
};
|
||||
|
||||
let close_fn = EventResult::Consumed(Some(Box::new(
|
||||
|compositor: &mut Compositor, editor: &mut Editor| {
|
||||
// remove the layer
|
||||
compositor.pop();
|
||||
},
|
||||
)));
|
||||
|
||||
match event {
|
||||
// esc or ctrl-c aborts the completion and closes the menu
|
||||
KeyEvent {
|
||||
code: KeyCode::Esc, ..
|
||||
}
|
||||
| KeyEvent {
|
||||
code: KeyCode::Char('c'),
|
||||
modifiers: KeyModifiers::CONTROL,
|
||||
} => {
|
||||
return close_fn;
|
||||
}
|
||||
_ => (),
|
||||
}
|
||||
// for some events, we want to process them but send ignore, specifically all input except
|
||||
// tab/enter/ctrl-k or whatever will confirm the selection/ ctrl-n/ctrl-p for scroll.
|
||||
// EventResult::Consumed(None)
|
||||
EventResult::Consumed(None)
|
||||
}
|
||||
fn render(&self, area: Rect, surface: &mut Surface, cx: &mut Context) {
|
||||
// render a box at x, y. Width equal to max width of item.
|
||||
const MAX: usize = 15;
|
||||
let rows = std::cmp::min(self.contents.lines().count(), MAX) as u16; // inefficient
|
||||
let area = Rect::new(self.position.col as u16, self.position.row as u16, 80, rows);
|
||||
|
||||
// clear area
|
||||
let background = cx.editor.theme.get("ui.popup");
|
||||
for y in area.top()..area.bottom() {
|
||||
for x in area.left()..area.right() {
|
||||
let cell = surface.get_mut(x, y);
|
||||
cell.reset();
|
||||
// cell.symbol.clear();
|
||||
cell.set_style(background);
|
||||
}
|
||||
}
|
||||
|
||||
// -- Render the contents:
|
||||
|
||||
let style = Style::default().fg(Color::Rgb(164, 160, 232)); // lavender
|
||||
|
||||
use tui::text::Text;
|
||||
use tui::widgets::{Paragraph, Widget, Wrap};
|
||||
let contents = Text::from(self.contents.clone());
|
||||
let par = Paragraph::new(contents).wrap(Wrap { trim: false });
|
||||
|
||||
par.render(area, surface);
|
||||
}
|
||||
}
|
Loading…
Reference in New Issue