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@ -1,10 +1,11 @@
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use crate::{commands, keymap, theme::Theme, Args};
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use crate::Args;
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use helix_core::{
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state::coords_at_pos,
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state::Mode,
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syntax::{HighlightConfiguration, HighlightEvent, Highlighter},
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State,
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};
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use helix_view::{commands, keymap, View};
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use std::{
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io::{self, stdout, Write},
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@ -31,19 +32,12 @@ type Terminal = tui::Terminal<CrosstermBackend<std::io::Stdout>>;
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static EX: smol::Executor = smol::Executor::new();
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pub struct View {
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pub state: State,
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pub first_line: u16,
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pub size: (u16, u16),
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}
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pub struct Editor {
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terminal: Terminal,
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view: Option<View>,
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size: (u16, u16),
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surface: Surface,
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cache: Surface,
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theme: Theme,
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}
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impl Editor {
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@ -53,7 +47,6 @@ impl Editor {
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let mut terminal = Terminal::new(backend)?;
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let size = terminal::size().unwrap();
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let area = Rect::new(0, 0, size.0, size.1);
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let theme = Theme::default();
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let mut editor = Editor {
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terminal,
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@ -61,7 +54,6 @@ impl Editor {
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size,
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surface: Surface::empty(area),
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cache: Surface::empty(area),
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theme,
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// TODO; move to state
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};
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@ -73,20 +65,7 @@ impl Editor {
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}
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pub fn open(&mut self, path: PathBuf) -> Result<(), Error> {
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let mut state = State::load(path)?;
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state
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.syntax
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.as_mut()
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.unwrap()
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.configure(self.theme.scopes());
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let view = View {
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state,
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first_line: 0,
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size: self.size,
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};
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self.view = Some(view);
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self.view = Some(View::open(path, self.size)?);
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Ok(())
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}
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@ -102,7 +81,7 @@ impl Editor {
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// clear with background color
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self.surface
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.set_style(area, self.theme.get("ui.background"));
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.set_style(area, view.theme.get("ui.background").into());
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let offset = 5 + 1; // 5 linenr + 1 gutter
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let viewport = Rect::new(offset, 0, self.size.0, self.size.1 - 1); // - 1 for statusline
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@ -161,7 +140,9 @@ impl Editor {
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use helix_core::graphemes::{grapheme_width, RopeGraphemes};
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let style = match spans.first() {
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Some(span) => self.theme.get(self.theme.scopes()[span.0].as_str()),
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Some(span) => {
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view.theme.get(view.theme.scopes()[span.0].as_str()).into()
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}
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None => Style::default().fg(Color::Rgb(164, 160, 232)), // lavender
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};
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@ -202,7 +183,7 @@ impl Editor {
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}
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let mut line = 0;
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let style = self.theme.get("ui.linenr");
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let style: Style = view.theme.get("ui.linenr").into();
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for i in view.first_line..(last_line as u16) {
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self.surface
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.set_stringn(0, line, format!("{:>5}", i + 1), 5, style); // lavender
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@ -241,7 +222,7 @@ impl Editor {
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};
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self.surface.set_style(
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Rect::new(0, self.size.1 - 1, self.size.0, 1),
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self.theme.get("ui.statusline"),
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view.theme.get("ui.statusline").into(),
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);
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// TODO: unfocused one with different color
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let text_color = Style::default().fg(Color::Rgb(219, 191, 239)); // lilac
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@ -296,7 +277,9 @@ impl Editor {
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self.cache = Surface::empty(area);
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// TODO: simplistic ensure cursor in view for now
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self.ensure_cursor_in_view();
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if let Some(view) = &mut self.view {
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view.ensure_cursor_in_view()
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};
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self.render();
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}
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@ -333,18 +316,19 @@ impl Editor {
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_ => (), // skip
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}
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// TODO: simplistic ensure cursor in view for now
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self.ensure_cursor_in_view();
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view.ensure_cursor_in_view();
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self.render();
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}
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Mode::Normal => {
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// TODO: handle modes and sequences (`gg`)
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if let Some(command) = keymap.get(&event) {
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let keys = vec![event];
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if let Some(command) = keymap[&Mode::Normal].get(&keys) {
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// TODO: handle count other than 1
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command(view, 1);
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// TODO: simplistic ensure cursor in view for now
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self.ensure_cursor_in_view();
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view.ensure_cursor_in_view();
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self.render();
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}
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@ -361,26 +345,6 @@ impl Editor {
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}
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}
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fn ensure_cursor_in_view(&mut self) {
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if let Some(view) = &mut self.view {
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let cursor = view.state.selection().cursor();
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let line = view.state.doc().char_to_line(cursor) as u16;
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let document_end = view.first_line + self.size.1.saturating_sub(1) - 1;
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let padding = 5u16;
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// TODO: side scroll
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if line > document_end.saturating_sub(padding) {
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// scroll down
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view.first_line += line - (document_end.saturating_sub(padding));
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} else if line < view.first_line + padding {
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// scroll up
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view.first_line = line.saturating_sub(padding);
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}
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}
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}
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pub async fn run(&mut self) -> Result<(), Error> {
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enable_raw_mode()?;
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