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fix(compatibility): handle foreground/background color changes properly

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This commit is contained in:
Aram Drevekenin 2020-09-23 11:47:37 +02:00
parent 1ae1d76041
commit eaba12c3ae
2 changed files with 134 additions and 79 deletions
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4
src/screen.rs
View file

@ -69,8 +69,8 @@ impl Screen {
receiver,
send_screen_instructions: sender,
full_screen_ws: full_screen_ws.clone(),
vertical_separator: TerminalCharacter::new('│').with_ansi_code(String::from("\u{1b}[m")), // TODO: better
horizontal_separator: TerminalCharacter::new('─').with_ansi_code(String::from("\u{1b}[m")), // TODO: better
vertical_separator: TerminalCharacter::new('│').reset_all_ansi_codes(),
horizontal_separator: TerminalCharacter::new('─').reset_all_ansi_codes(),
terminals: BTreeMap::new(),
active_terminal: None,
os_api,

207
src/terminal_pane.rs
View file

@ -8,20 +8,35 @@ use ::vte::Perform;
use crate::VteEvent;
const DEBUGGING: bool = false;
const EMPTY_TERMINAL_CHARACTER: TerminalCharacter = TerminalCharacter { character: ' ', ansi_codes: None, no_style: true };
const EMPTY_TERMINAL_CHARACTER: TerminalCharacter = TerminalCharacter {
character: ' ',
foreground_ansi_codes: None,
background_ansi_codes: None,
misc_ansi_codes: None,
reset_foreground_ansi_code: true,
reset_background_ansi_code: true,
reset_misc_ansi_code: true,
};
#[derive(Clone)]
pub struct TerminalCharacter {
pub character: char,
pub ansi_codes: Option<Vec<String>>,
pub no_style: bool, // TODO: better - this currently means that the style should be reset
// we do this here because we need to restructure ansi_codes and otherwise
// EMPTY_TERMINAL_CHARACTER won't be Copy, hacky but yeah
pub foreground_ansi_codes: Option<Vec<String>>,
pub background_ansi_codes: Option<Vec<String>>,
pub misc_ansi_codes: Option<Vec<String>>,
pub reset_foreground_ansi_code: bool,
pub reset_background_ansi_code: bool,
pub reset_misc_ansi_code: bool,
}
impl PartialEq for TerminalCharacter {
fn eq(&self, other: &Self) -> bool {
self.ansi_codes == other.ansi_codes
self.foreground_ansi_codes == other.foreground_ansi_codes &&
self.background_ansi_codes == other.background_ansi_codes &&
self.misc_ansi_codes == other.misc_ansi_codes &&
self.reset_background_ansi_code == other.reset_background_ansi_code &&
self.reset_foreground_ansi_code == other.reset_foreground_ansi_code &&
self.reset_misc_ansi_code == other.reset_misc_ansi_code
}
}
@ -31,20 +46,28 @@ impl TerminalCharacter {
pub fn new (character: char) -> Self {
TerminalCharacter {
character,
ansi_codes: Some(vec![]),
no_style: false,
foreground_ansi_codes: Some(vec![]),
background_ansi_codes: Some(vec![]),
misc_ansi_codes: Some(vec![]),
reset_foreground_ansi_code: false,
reset_background_ansi_code: false,
reset_misc_ansi_code: false,
}
}
pub fn with_ansi_code (mut self, ansi_code: String) -> Self {
if let Some(ansi_codes) = self.ansi_codes.as_mut() {
ansi_codes.push(ansi_code);
pub fn reset_all_ansi_codes(mut self) -> Self {
if let Some(foreground_ansi_codes) = self.foreground_ansi_codes.as_mut() {
foreground_ansi_codes.clear();
}
if let Some(background_ansi_codes) = self.background_ansi_codes.as_mut() {
background_ansi_codes.clear();
}
if let Some(misc_ansi_codes) = self.misc_ansi_codes.as_mut() {
misc_ansi_codes.clear();
}
self.reset_foreground_ansi_code = true;
self.reset_background_ansi_code = true;
self.reset_misc_ansi_code = true;
self
} else {
let mut ansi_codes = vec![];
ansi_codes.push(ansi_code);
self.ansi_codes = Some(ansi_codes);
self
}
}
}
@ -52,9 +75,27 @@ impl TerminalCharacter {
impl Display for TerminalCharacter {
fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
let mut code_string = String::new(); // TODO: better
if self.no_style {
code_string.push_str("\u{1b}[m"); // TODO: better, see comment on no_style
} else if let Some(ansi_codes) = self.ansi_codes.as_ref() {
if self.reset_foreground_ansi_code && self.reset_background_ansi_code && self.reset_misc_ansi_code {
code_string.push_str("\u{1b}[m");
} else {
if self.reset_foreground_ansi_code {
code_string.push_str("\u{1b}[39m");
}
if self.reset_background_ansi_code {
code_string.push_str("\u{1b}[49m");
}
}
if let Some(ansi_codes) = self.foreground_ansi_codes.as_ref() {
for code in ansi_codes {
code_string.push_str(&code);
}
}
if let Some(ansi_codes) = self.background_ansi_codes.as_ref() {
for code in ansi_codes {
code_string.push_str(&code);
}
}
if let Some(ansi_codes) = self.misc_ansi_codes.as_ref() {
for code in ansi_codes {
code_string.push_str(&code);
}
@ -80,7 +121,12 @@ pub struct TerminalOutput {
cursor_position: usize,
newline_indices: Vec<usize>, // canonical line breaks we get from the vt interpreter
linebreak_indices: Vec<usize>, // linebreaks from line wrapping
pending_ansi_codes: Vec<String>, // this is used eg. in a carriage return, where we need to preserve the style
reset_foreground_ansi_code: bool, // this is a performance optimization, rather than placing and looking for the ansi reset code in pending_ansi_codes
reset_background_ansi_code: bool, // this is a performance optimization, rather than placing and looking for the ansi reset code in pending_ansi_codes
reset_misc_ansi_code: bool, // this is a performance optimization, rather than placing and looking for the ansi reset code in pending_ansi_codes
pending_foreground_ansi_codes: Vec<String>, // this is used eg. in a carriage return, where we need to preserve the style
pending_background_ansi_codes: Vec<String>, // this is used eg. in a carriage return, where we need to preserve the style
pending_misc_ansi_codes: Vec<String>, // this is used eg. in a carriage return, where we need to preserve the style
}
impl TerminalOutput {
@ -94,7 +140,12 @@ impl TerminalOutput {
display_rows: ws.ws_row,
display_cols: ws.ws_col,
should_render: true,
pending_ansi_codes: vec![],
reset_foreground_ansi_code: false,
reset_background_ansi_code: false,
reset_misc_ansi_code: false,
pending_foreground_ansi_codes: vec![],
pending_background_ansi_codes: vec![],
pending_misc_ansi_codes: vec![],
x_coords,
y_coords,
}
@ -425,7 +476,8 @@ impl TerminalOutput {
self.newline_indices.push(self.characters.len());
self.cursor_position = self.characters.len();
self.should_render = true;
self.pending_ansi_codes = vec![];
self.pending_foreground_ansi_codes.clear();
self.pending_background_ansi_codes.clear();
}
fn move_to_beginning_of_line (&mut self) {
let last_newline_index = if self.newline_indices.is_empty() {
@ -440,16 +492,39 @@ impl TerminalOutput {
impl vte::Perform for TerminalOutput {
fn print(&mut self, c: char) {
// print!("-{:?}>>{:?}<<-", &self.pending_ansi_code.clone().unwrap_or(String::from("None")), c);
// print!("-{:?}-{:?}>>{:?}<<-", &self.pending_ansi_codes, self.reset_ansi_code, c);
if DEBUGGING {
println!("\r[print] {:?}", c);
} else {
let mut terminal_character = TerminalCharacter::new(c);
let mut ansi_codes = vec![];
for ansi_code in &self.pending_ansi_codes {
ansi_codes.push(ansi_code.clone());
if self.reset_foreground_ansi_code {
terminal_character.reset_foreground_ansi_code = true;
} else {
let mut foreground_ansi_codes = vec![];
for ansi_code in &self.pending_foreground_ansi_codes {
foreground_ansi_codes.push(ansi_code.clone());
}
terminal_character.ansi_codes = Some(ansi_codes);
terminal_character.foreground_ansi_codes = Some(foreground_ansi_codes);
}
if self.reset_background_ansi_code {
terminal_character.reset_background_ansi_code = true;
} else {
let mut background_ansi_codes = vec![];
for ansi_code in &self.pending_background_ansi_codes {
background_ansi_codes.push(ansi_code.clone());
}
terminal_character.background_ansi_codes = Some(background_ansi_codes);
}
if self.reset_misc_ansi_code {
terminal_character.reset_misc_ansi_code = true;
} else {
let mut misc_ansi_codes = vec![];
for ansi_code in &self.pending_misc_ansi_codes {
misc_ansi_codes.push(ansi_code.clone());
}
terminal_character.misc_ansi_codes = Some(misc_ansi_codes);
}
if self.characters.len() == self.cursor_position {
self.characters.push(terminal_character);
@ -463,13 +538,8 @@ impl vte::Perform for TerminalOutput {
self.characters.remove(self.cursor_position);
self.characters.insert(self.cursor_position, terminal_character);
} else {
// let mut space_character = TerminalCharacter::new(' ');
let mut space_character = TerminalCharacter::new(' ');
// space_character.ansi_code = self.pending_ansi_code.clone();
let reset_style = "\u{1b}[m";
space_character.ansi_codes = Some(vec![ String::from(reset_style) ]);
for _ in self.characters.len()..self.cursor_position {
self.characters.push(space_character.clone());
self.characters.push(EMPTY_TERMINAL_CHARACTER.clone());
};
self.characters.push(terminal_character);
@ -545,49 +615,34 @@ impl vte::Perform for TerminalOutput {
);
} else {
if c == 'm' {
// TODO:
// 38 => foreground
// 48 => background
// * change pending_ansi_code to pending_ansi_foreground and pending_ansi_background
// * delete them accordingly and treat htem accordingly, see if this solves the
// diskonaut problem
//
// change foreground color (only?)
// TODO: handle misc codes specifically
// like here: https://github.com/alacritty/alacritty/blob/46c0f352c40ecb68653421cb178a297acaf00c6d/alacritty_terminal/src/ansi.rs#L1176
if params.is_empty() || params[0] == 0 {
self.reset_foreground_ansi_code = true;
self.reset_background_ansi_code = true;
self.reset_misc_ansi_code = true;
self.pending_foreground_ansi_codes.clear();
self.pending_background_ansi_codes.clear();
self.pending_misc_ansi_codes.clear();
} else if params[0] == 39 {
self.reset_foreground_ansi_code = true;
self.pending_foreground_ansi_codes.clear();
} else if params[0] == 49 {
self.reset_background_ansi_code = true;
self.pending_background_ansi_codes.clear();
} else if params[0] == 38 {
let param_string = params.iter().map(|p| p.to_string()).collect::<Vec<String>>().join(";");
self.pending_ansi_codes.push(format!("\u{1b}[{}m", param_string));
// if params.len() == 1 {
//
// // if params[0] == 0 ???
// if params[0] == 39 {
// self.pending_ansi_foreground_code = Some(String::from("\u{1b}[39m"));
// } else if params[0] == 49 {
// self.pending_ansi_background_code = Some(String::from("\u{1b}[49m"));
// } else {
// // ?????
// let param_string = params.iter().map(|p| p.to_string()).collect::<Vec<String>>().join(";");
// self.pending_ansi_foreground_code = Some(format!("\u{1b}[{}m", param_string));
// self.pending_ansi_background_code = Some(format!("\u{1b}[{}m", param_string));
// }
// // eg. \u{1b}[m
// // self.pending_ansi_code = Some(String::from("\u{1b}[m"));
// // self.pending_ansi_code = Some(String::from("\u{1b}[0m"));
// // self.pending_ansi_code = Some(String::from("\u{1b}[39m\u{1b}[49m")); // reset
// } else {
// // eg. \u{1b}[38;5;0m
// let param_string = params.iter().map(|p| p.to_string()).collect::<Vec<String>>().join(";");
// if params[0] == 38 {
// self.pending_ansi_foreground_code = Some(format!("\u{1b}[{}m", param_string));
// } else if params[0] == 48 {
// self.pending_ansi_background_code = Some(format!("\u{1b}[{}m", param_string));
// } else {
// // ???
// self.pending_ansi_foreground_code = Some(format!("\u{1b}[{}m", param_string));
// self.pending_ansi_background_code = Some(format!("\u{1b}[{}m", param_string));
// }
//// let param_string = params.iter().map(|p| p.to_string()).collect::<Vec<String>>().join(";");
//// self.pending_ansi_code = Some(format!("\u{1b}[{}m", param_string));
// }
self.pending_foreground_ansi_codes.push(format!("\u{1b}[{}m", param_string));
self.reset_foreground_ansi_code = false;
} else if params[0] == 48 {
let param_string = params.iter().map(|p| p.to_string()).collect::<Vec<String>>().join(";");
self.pending_background_ansi_codes.push(format!("\u{1b}[{}m", param_string));
self.reset_background_ansi_code = false;
} else {
let param_string = params.iter().map(|p| p.to_string()).collect::<Vec<String>>().join(";");
self.pending_misc_ansi_codes.push(format!("\u{1b}[{}m", param_string));
self.reset_misc_ansi_code = false;
}
} else if c == 'C' { // move cursor forward
self.cursor_position += params[0] as usize; // TODO: negative value?
} else if c == 'K' { // clear line (0 => right, 1 => left, 2 => all)