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-rw-r--r--helix-term/src/main.rs229
1 files changed, 13 insertions, 216 deletions
diff --git a/helix-term/src/main.rs b/helix-term/src/main.rs
index e13309eb..9dfa3767 100644
--- a/helix-term/src/main.rs
+++ b/helix-term/src/main.rs
@@ -1,227 +1,24 @@
-//! This example shows how to make a basic widget that accumulates
-//! text input and renders it to the screen
-#![allow(unused)]
-use anyhow::Error;
-use termwiz::caps::Capabilities;
-use termwiz::cell::AttributeChange;
-use termwiz::color::{AnsiColor, ColorAttribute, RgbColor};
-use termwiz::input::*;
-use termwiz::surface::Change;
-use termwiz::terminal::buffered::BufferedTerminal;
-use termwiz::terminal::{new_terminal, Terminal};
-use termwiz::widgets::*;
-
-/// This is a widget for our application
-struct MainScreen {}
-
-impl MainScreen {
- pub fn new() -> Self {
- Self {}
- }
-}
-
-impl Widget for MainScreen {
- fn process_event(&mut self, event: &WidgetEvent, _args: &mut UpdateArgs) -> bool {
- true // handled it all
- }
-
- /// Draw ourselves into the surface provided by RenderArgs
- fn render(&mut self, args: &mut RenderArgs) {
- // args.surface.add_change(Change::ClearScreen(
- // ColorAttribute::TrueColorWithPaletteFallback(
- // RgbColor::new(0x31, 0x1B, 0x92),
- // AnsiColor::Black.into(),
- // ),
- // ));
- // args.surface
- // .add_change(Change::Attribute(AttributeChange::Foreground(
- // ColorAttribute::TrueColorWithPaletteFallback(
- // RgbColor::new(0xB3, 0x88, 0xFF),
- // AnsiColor::Purple.into(),
- // ),
- // )));
- }
-
- fn get_size_constraints(&self) -> layout::Constraints {
- let mut constraints = layout::Constraints::default();
- constraints.child_orientation = layout::ChildOrientation::Vertical;
- constraints
- }
-}
-
-struct Buffer<'a> {
- /// Holds the input text that we wish the widget to display
- text: &'a mut String,
-}
-
-impl<'a> Buffer<'a> {
- /// Initialize the widget with the input text
- pub fn new(text: &'a mut String) -> Self {
- Self { text }
- }
-}
-
-impl<'a> Widget for Buffer<'a> {
- fn process_event(&mut self, event: &WidgetEvent, _args: &mut UpdateArgs) -> bool {
- match event {
- WidgetEvent::Input(InputEvent::Key(KeyEvent {
- key: KeyCode::Char(c),
- ..
- })) => self.text.push(*c),
- WidgetEvent::Input(InputEvent::Key(KeyEvent {
- key: KeyCode::Enter,
- ..
- })) => {
- self.text.push_str("\r\n");
- }
- WidgetEvent::Input(InputEvent::Paste(s)) => {
- self.text.push_str(&s);
- }
- _ => {}
- }
-
- true // handled it all
- }
+mod editor;
- /// Draw ourselves into the surface provided by RenderArgs
- fn render(&mut self, args: &mut RenderArgs) {
- args.surface
- .add_change(Change::ClearScreen(ColorAttribute::Default));
+use editor::Editor;
- // args.surface
- // .add_change(Change::Attribute(AttributeChange::Foreground(
- // ColorAttribute::TrueColorWithPaletteFallback(
- // RgbColor::new(0x11, 0x00, 0xFF),
- // AnsiColor::Purple.into(),
- // ),
- // )));
- let dims = args.surface.dimensions();
- args.surface
- .add_change(format!("🤷 surface size is {:?}\r\n", dims));
- args.surface.add_change(self.text.clone());
+use argh::FromArgs;
+use std::{env, path::PathBuf};
- // Place the cursor at the end of the text.
- // A more advanced text editing widget would manage the
- // cursor position differently.
- *args.cursor = CursorShapeAndPosition {
- coords: args.surface.cursor_position().into(),
- shape: termwiz::surface::CursorShape::SteadyBar,
- ..Default::default()
- };
- }
-
- fn get_size_constraints(&self) -> layout::Constraints {
- let mut c = layout::Constraints::default();
- c.set_valign(layout::VerticalAlignment::Top);
- c
- }
-}
-
-struct StatusLine {}
-
-impl StatusLine {
- pub fn new() -> Self {
- StatusLine {}
- }
-}
-impl Widget for StatusLine {
- fn process_event(&mut self, event: &WidgetEvent, _args: &mut UpdateArgs) -> bool {
- true
- }
-
- fn render(&mut self, args: &mut RenderArgs) {
- args.surface.add_change(Change::ClearScreen(
- ColorAttribute::TrueColorWithPaletteFallback(
- RgbColor::new(0xFF, 0xFF, 0xFF),
- AnsiColor::Black.into(),
- ),
- ));
- args.surface
- .add_change(Change::Attribute(AttributeChange::Foreground(
- ColorAttribute::TrueColorWithPaletteFallback(
- RgbColor::new(0x00, 0x00, 0x00),
- AnsiColor::Black.into(),
- ),
- )));
-
- args.surface.add_change(" helix");
- }
+use anyhow::Error;
- fn get_size_constraints(&self) -> layout::Constraints {
- *layout::Constraints::default()
- .set_fixed_height(1)
- .set_valign(layout::VerticalAlignment::Bottom)
- }
+#[derive(FromArgs)]
+/// A post-modern text editor.
+pub struct Args {
+ #[argh(positional)]
+ files: Vec<PathBuf>,
}
fn main() -> Result<(), Error> {
- // Start with an empty string; typing into the app will
- // update this string.
- let mut typed_text = String::new();
-
- {
- // Create a terminal and put it into full screen raw mode
- let caps = Capabilities::new_from_env()?;
- let mut buf = BufferedTerminal::new(new_terminal(caps)?)?;
- buf.terminal().enter_alternate_screen()?;
- buf.terminal().set_raw_mode()?;
-
- // Set up the UI
- let mut ui = Ui::new();
-
- let root_id = ui.set_root(MainScreen::new());
- let buffer_id = ui.add_child(root_id, Buffer::new(&mut typed_text));
- // let root_id = ui.set_root(Buffer::new(&mut typed_text));
- ui.add_child(root_id, StatusLine::new());
- ui.set_focus(buffer_id);
-
- loop {
- ui.process_event_queue()?;
-
- // After updating and processing all of the widgets, compose them
- // and render them to the screen.
- if ui.render_to_screen(&mut buf)? {
- // We have more events to process immediately; don't block waiting
- // for input below, but jump to the top of the loop to re-run the
- // updates.
- continue;
- }
- // Compute an optimized delta to apply to the terminal and display it
- buf.flush()?;
-
- // Wait for user input
- match buf.terminal().poll_input(None) {
- Ok(Some(InputEvent::Resized { rows, cols })) => {
- // FIXME: this is working around a bug where we don't realize
- // that we should redraw everything on resize in BufferedTerminal.
- buf.add_change(Change::ClearScreen(Default::default()));
- buf.resize(cols, rows);
- }
- Ok(Some(input)) => match input {
- InputEvent::Key(KeyEvent {
- key: KeyCode::Escape,
- ..
- }) => {
- // Quit the app when escape is pressed
- break;
- }
- input @ _ => {
- // Feed input into the Ui
- ui.queue_event(WidgetEvent::Input(input));
- }
- },
- Ok(None) => {}
- Err(e) => {
- print!("{:?}\r\n", e);
- break;
- }
- }
- }
- }
+ let args: Args = argh::from_env();
+ let mut editor = Editor::new(args)?;
- // After we've stopped the full screen raw terminal,
- // print out the final edited value of the input text.
- println!("The text you entered: {}", typed_text);
+ editor.run()?;
Ok(())
}
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