mirror of
https://github.com/ChrisTitusTech/linutil.git
synced 2024-11-05 21:28:48 +00:00
Made running_command.rs implement FloatContent so it can be shown inside a float
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parent
f0e67ba313
commit
65b7246099
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@ -1,28 +1,26 @@
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use std::{
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io::Write,
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sync::{Arc, Mutex},
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thread::JoinHandle,
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};
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use crate::{float::FloatContent, state::AppState};
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use crossterm::event::{KeyCode, KeyEvent, KeyModifiers};
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use oneshot::{channel, Receiver};
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use portable_pty::{
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ChildKiller, CommandBuilder, ExitStatus, MasterPty, NativePtySystem, PtySize, PtySystem,
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};
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use ratatui::{
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layout::Size,
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style::{Style, Stylize},
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layout::{Rect, Size},
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style::{Color, Style, Stylize},
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text::{Line, Span},
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widgets::{Block, Borders},
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Frame,
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};
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use std::{
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io::Write,
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sync::{Arc, Mutex},
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thread::JoinHandle,
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};
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use tui_term::{
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vt100::{self, Screen},
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widget::PseudoTerminal,
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};
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use crate::{float::floating_window, state::AppState};
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#[derive(Clone)]
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pub enum Command {
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Raw(&'static str),
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@ -30,36 +28,107 @@ pub enum Command {
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None, // Directory
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}
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/// This is a struct for storing everything connected to a running command
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// Create a new instance on every new command you want to run
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pub struct RunningCommand {
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/// A buffer to save all the command output (accumulates, untill the command exits)
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/// A buffer to save all the command output (accumulates, until the command exits)
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buffer: Arc<Mutex<Vec<u8>>>,
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/// A handle of the tread where the command is being executed
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/// A handle for the thread running the command
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command_thread: Option<JoinHandle<ExitStatus>>,
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/// A handle to kill the running process, it's an option because it can only be used once
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/// A handle to kill the running process; it's an option because it can only be used once
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child_killer: Option<Receiver<Box<dyn ChildKiller + Send + Sync>>>,
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/// A join handle for the thread that is reading all the command output and sending it to the
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/// main thread
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/// A join handle for the thread that reads command output and sends it to the main thread
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_reader_thread: JoinHandle<()>,
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/// Virtual terminal (pty) handle, used for resizing the pty
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pty_master: Box<dyn MasterPty + Send>,
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/// Used for sending keys to the emulated terminal
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writer: Box<dyn Write + Send>,
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/// Only set after the process has ended
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status: Option<ExitStatus>,
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}
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impl FloatContent for RunningCommand {
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fn draw(&mut self, frame: &mut Frame, area: Rect) {
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// Calculate the inner size of the terminal area, considering borders
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let inner_size = Size {
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width: area.width - 2, // Adjust for border width
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height: area.height - 2,
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};
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// Define the block for the terminal display
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let block = if !self.is_finished() {
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// Display a block indicating the command is running
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Block::default()
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.borders(Borders::ALL)
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.title_top(Line::from("Running the command....").centered())
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.title_style(Style::default().reversed())
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.title_bottom(Line::from("Press Ctrl-C to KILL the command"))
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} else {
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// Display a block with the command's exit status
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let mut title_line = if self.get_exit_status().success() {
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Line::from(
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Span::default()
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.content("SUCCESS!")
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.style(Style::default().fg(Color::Green).reversed()),
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)
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} else {
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Line::from(
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Span::default()
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.content("FAILED!")
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.style(Style::default().fg(Color::Red).reversed()),
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)
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};
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title_line.push_span(
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Span::default()
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.content(" press <ENTER> to close this window ")
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.style(Style::default()),
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);
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Block::default()
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.borders(Borders::ALL)
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.title_top(title_line.centered())
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};
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// Process the buffer and create the pseudo-terminal widget
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let screen = self.screen(inner_size);
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let pseudo_term = PseudoTerminal::new(&screen).block(block);
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// Render the widget on the frame
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frame.render_widget(pseudo_term, area);
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}
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/// Handle key events of the running command "window". Returns true when the "window" should be
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/// closed
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fn handle_key_event(&mut self, key: &KeyEvent) -> bool {
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match key.code {
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// Handle Ctrl-C to kill the command
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KeyCode::Char('c') if key.modifiers.contains(KeyModifiers::CONTROL) => {
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self.kill_child();
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}
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// Close the window when Enter is pressed and the command is finished
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KeyCode::Enter if self.is_finished() => {
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return true;
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}
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// Pass other key events to the terminal
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_ => self.handle_passthrough_key_event(key),
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}
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false
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}
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fn is_finished(&self) -> bool {
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// Check if the command thread has finished
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if let Some(command_thread) = &self.command_thread {
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command_thread.is_finished()
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} else {
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true
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}
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}
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}
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impl RunningCommand {
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pub fn new(command: Command, state: &AppState) -> Self {
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let pty_system = NativePtySystem::default();
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// Build the command based on the provided Command enum variant
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let mut cmd = CommandBuilder::new("sh");
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match command {
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Command::Raw(prompt) => {
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@ -74,10 +143,11 @@ impl RunningCommand {
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cmd.cwd(&state.temp_path);
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// Open a pseudo-terminal with initial size
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let pair = pty_system
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.openpty(PtySize {
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rows: 24, // Set the initial size of the emulated terminal
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cols: 80, // We will update this later, if resized
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rows: 24, // Initial number of rows (will be updated dynamically)
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cols: 80, // Initial number of columns (will be updated dynamically)
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pixel_width: 0,
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pixel_height: 0,
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})
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@ -129,6 +199,7 @@ impl RunningCommand {
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status: None,
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}
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}
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fn screen(&mut self, size: Size) -> Screen {
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// Resize the emulated pty
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self.pty_master
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@ -149,13 +220,7 @@ impl RunningCommand {
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parser.process(buffer);
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parser.screen().clone()
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}
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pub fn is_finished(&mut self) -> bool {
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if let Some(command_thread) = &self.command_thread {
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command_thread.is_finished()
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} else {
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true
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}
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}
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/// This function will block if the command is not finished
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fn get_exit_status(&mut self) -> ExitStatus {
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if self.command_thread.is_some() {
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@ -168,57 +233,6 @@ impl RunningCommand {
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}
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}
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pub fn draw(&mut self, frame: &mut Frame, state: &AppState) {
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// Funny name
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let floater = floating_window(frame.size());
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let inner_size = Size {
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width: floater.width - 2, // Because we add a `Block` with a border
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height: floater.height - 2,
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};
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// When the command is running
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let term_border = if !self.is_finished() {
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Block::default()
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.borders(Borders::ALL)
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.title_top(Line::from("Running the command....").centered())
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.title_style(Style::default().reversed())
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.title_bottom(Line::from("Press Ctrl-C to KILL the command"))
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} else {
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// This portion is just for pretty colors.
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// You can use multiple `Span`s with different styles each, to construct a line,
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// which can be used as a list item, or in this case a `Block` title
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let mut title_line = if self.get_exit_status().success() {
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Line::from(
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Span::default()
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.content("SUCCESS!")
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.style(Style::default().fg(state.theme.success_color).reversed()),
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)
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} else {
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Line::from(
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Span::default()
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.content("FAILED!")
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.style(Style::default().fg(state.theme.fail_color).reversed()),
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)
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};
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title_line.push_span(
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Span::default()
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.content(" press <ENTER> to close this window ")
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.style(Style::default()),
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);
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Block::default()
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.borders(Borders::ALL)
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.title_top(title_line.centered())
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};
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let screen = self.screen(inner_size); // when the terminal is changing a lot, there
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// will be 1 frame of lag on resizing
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let pseudo_term = PseudoTerminal::new(&screen).block(term_border);
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frame.render_widget(pseudo_term, floater);
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}
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/// Send SIGHUB signal, *not* SIGKILL or SIGTERM, to the child process
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pub fn kill_child(&mut self) {
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if !self.is_finished() {
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@ -227,22 +241,6 @@ impl RunningCommand {
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}
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}
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/// Handle key events of the running command "window". Returns true when the "window" should be
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/// closed
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pub fn handle_key_event(&mut self, key: &KeyEvent) -> bool {
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match key.code {
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KeyCode::Char('c') if key.modifiers.contains(KeyModifiers::CONTROL) => {
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self.kill_child()
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}
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KeyCode::Enter if self.is_finished() => {
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return true;
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}
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_ => self.handle_passthrough_key_event(key),
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};
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false
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}
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/// Convert the KeyEvent to pty key codes, and send them to the virtual terminal
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fn handle_passthrough_key_event(&mut self, key: &KeyEvent) {
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let input_bytes = match key.code {
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@ -260,9 +258,6 @@ impl RunningCommand {
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'6' | '^' => send = vec![30],
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'7' | '-' | '_' => send = vec![31],
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char if ('A'..='_').contains(&char) => {
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// Since A == 65,
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// we can safely subtract 64 to get
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// the corresponding control character
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let ascii_val = char as u8;
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let ascii_to_send = ascii_val - 64;
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send = vec![ascii_to_send];
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