Unnamed repository; edit this file 'description' to name the repository.
Diffstat (limited to 'helix-tui/src/backend/crossterm.rs')
| -rw-r--r-- | helix-tui/src/backend/crossterm.rs | 54 |
1 files changed, 32 insertions, 22 deletions
diff --git a/helix-tui/src/backend/crossterm.rs b/helix-tui/src/backend/crossterm.rs index 3b53c21f..e8947ee0 100644 --- a/helix-tui/src/backend/crossterm.rs +++ b/helix-tui/src/backend/crossterm.rs @@ -14,7 +14,10 @@ use crossterm::{ terminal::{self, Clear, ClearType}, Command, }; -use helix_view::graphics::{Color, CursorKind, Modifier, Rect, UnderlineStyle}; +use helix_view::{ + editor::Config as EditorConfig, + graphics::{Color, CursorKind, Modifier, Rect, UnderlineStyle}, +}; use once_cell::sync::OnceCell; use std::{ fmt, @@ -71,17 +74,17 @@ impl Capabilities { /// on the $TERM environment variable. If detection fails, returns /// a default value where no capability is supported, or just undercurl /// if config.undercurl is set. - pub fn from_env_or_default(config: &Config) -> Self { + pub fn from_env_or_default(config: &EditorConfig) -> Self { match termini::TermInfo::from_env() { Err(_) => Capabilities { - has_extended_underlines: config.force_enable_extended_underlines, + has_extended_underlines: config.undercurl, ..Capabilities::default() }, Ok(t) => Capabilities { // Smulx, VTE: https://unix.stackexchange.com/a/696253/246284 // Su (used by kitty): https://sw.kovidgoyal.net/kitty/underlines // WezTerm supports underlines but a lot of distros don't properly install its terminfo - has_extended_underlines: config.force_enable_extended_underlines + has_extended_underlines: config.undercurl || t.extended_cap("Smulx").is_some() || t.extended_cap("Su").is_some() || vte_version() >= Some(5102) @@ -92,10 +95,8 @@ impl Capabilities { } } -/// Terminal backend supporting a wide variety of terminals pub struct CrosstermBackend<W: Write> { buffer: W, - config: Config, capabilities: Capabilities, supports_keyboard_enhancement_protocol: OnceCell<bool>, mouse_capture_enabled: bool, @@ -106,15 +107,14 @@ impl<W> CrosstermBackend<W> where W: Write, { - pub fn new(buffer: W, config: Config) -> CrosstermBackend<W> { + pub fn new(buffer: W, config: &EditorConfig) -> CrosstermBackend<W> { // helix is not usable without colors, but crossterm will disable // them by default if NO_COLOR is set in the environment. Override // this behaviour. crossterm::style::force_color_output(true); CrosstermBackend { buffer, - capabilities: Capabilities::from_env_or_default(&config), - config, + capabilities: Capabilities::from_env_or_default(config), supports_keyboard_enhancement_protocol: OnceCell::new(), mouse_capture_enabled: false, supports_bracketed_paste: true, @@ -156,7 +156,7 @@ impl<W> Backend for CrosstermBackend<W> where W: Write, { - fn claim(&mut self) -> io::Result<()> { + fn claim(&mut self, config: Config) -> io::Result<()> { terminal::enable_raw_mode()?; execute!( self.buffer, @@ -172,7 +172,7 @@ where Ok(_) => (), }; execute!(self.buffer, terminal::Clear(terminal::ClearType::All))?; - if self.config.enable_mouse_capture { + if config.enable_mouse_capture { execute!(self.buffer, EnableMouseCapture)?; self.mouse_capture_enabled = true; } @@ -197,16 +197,15 @@ where } self.mouse_capture_enabled = config.enable_mouse_capture; } - self.config = config; Ok(()) } - fn restore(&mut self) -> io::Result<()> { + fn restore(&mut self, config: Config) -> io::Result<()> { // reset cursor shape self.buffer .write_all(self.capabilities.reset_cursor_command.as_bytes())?; - if self.config.enable_mouse_capture { + if config.enable_mouse_capture { execute!(self.buffer, DisableMouseCapture)?; } if self.supports_keyboard_enhancement_protocol() { @@ -223,6 +222,20 @@ where terminal::disable_raw_mode() } + fn force_restore() -> io::Result<()> { + let mut stdout = io::stdout(); + + // reset cursor shape + write!(stdout, "\x1B[0 q")?; + // Ignore errors on disabling, this might trigger on windows if we call + // disable without calling enable previously + let _ = execute!(stdout, DisableMouseCapture); + let _ = execute!(stdout, PopKeyboardEnhancementFlags); + let _ = execute!(stdout, DisableBracketedPaste); + execute!(stdout, DisableFocusChange, terminal::LeaveAlternateScreen)?; + terminal::disable_raw_mode() + } + fn draw<'a, I>(&mut self, content: I) -> io::Result<()> where I: Iterator<Item = (u16, u16, &'a Cell)>, @@ -302,6 +315,11 @@ where execute!(self.buffer, Show, shape) } + fn get_cursor(&mut self) -> io::Result<(u16, u16)> { + crossterm::cursor::position() + .map_err(|e| io::Error::new(io::ErrorKind::Other, e.to_string())) + } + fn set_cursor(&mut self, x: u16, y: u16) -> io::Result<()> { execute!(self.buffer, MoveTo(x, y)) } @@ -320,14 +338,6 @@ where fn flush(&mut self) -> io::Result<()> { self.buffer.flush() } - - fn supports_true_color(&self) -> bool { - false - } - - fn get_theme_mode(&self) -> Option<helix_view::theme::Mode> { - None - } } #[derive(Debug)] |