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feat: keyboard navigation

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This commit is contained in:
Jeremy Wall 2024-10-30 14:34:45 -04:00
parent 68469c9afd
commit a5177bda18
5 changed files with 313 additions and 52 deletions
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112
Cargo.lock generated
View File

@ -197,6 +197,7 @@ checksum = "829d955a0bb380ef178a640b91779e3987da38c9aea133b20614cfed8cdea9c6"
dependencies = [
"bitflags",
"crossterm_winapi",
"futures-core",
"mio",
"parking_lot",
"rustix",
@ -273,6 +274,95 @@ version = "0.1.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f81ec6369c545a7d40e4589b5597581fa1c441fe1cce96dd1de43159910a36a2"
[[package]]
name = "futures"
version = "0.3.31"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "65bc07b1a8bc7c85c5f2e110c476c7389b4554ba72af57d8445ea63a576b0876"
dependencies = [
"futures-channel",
"futures-core",
"futures-executor",
"futures-io",
"futures-sink",
"futures-task",
"futures-util",
]
[[package]]
name = "futures-channel"
version = "0.3.31"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "2dff15bf788c671c1934e366d07e30c1814a8ef514e1af724a602e8a2fbe1b10"
dependencies = [
"futures-core",
"futures-sink",
]
[[package]]
name = "futures-core"
version = "0.3.31"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "05f29059c0c2090612e8d742178b0580d2dc940c837851ad723096f87af6663e"
[[package]]
name = "futures-executor"
version = "0.3.31"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1e28d1d997f585e54aebc3f97d39e72338912123a67330d723fdbb564d646c9f"
dependencies = [
"futures-core",
"futures-task",
"futures-util",
]
[[package]]
name = "futures-io"
version = "0.3.31"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9e5c1b78ca4aae1ac06c48a526a655760685149f0d465d21f37abfe57ce075c6"
[[package]]
name = "futures-macro"
version = "0.3.31"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "162ee34ebcb7c64a8abebc059ce0fee27c2262618d7b60ed8faf72fef13c3650"
dependencies = [
"proc-macro2",
"quote",
"syn",
]
[[package]]
name = "futures-sink"
version = "0.3.31"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e575fab7d1e0dcb8d0c7bcf9a63ee213816ab51902e6d244a95819acacf1d4f7"
[[package]]
name = "futures-task"
version = "0.3.31"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f90f7dce0722e95104fcb095585910c0977252f286e354b5e3bd38902cd99988"
[[package]]
name = "futures-util"
version = "0.3.31"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9fa08315bb612088cc391249efdc3bc77536f16c91f6cf495e6fbe85b20a4a81"
dependencies = [
"futures-channel",
"futures-core",
"futures-io",
"futures-macro",
"futures-sink",
"futures-task",
"memchr",
"pin-project-lite",
"pin-utils",
"slab",
]
[[package]]
name = "gimli"
version = "0.31.1"
@ -442,6 +532,18 @@ version = "1.0.15"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "57c0d7b74b563b49d38dae00a0c37d4d6de9b432382b2892f0574ddcae73fd0a"
[[package]]
name = "pin-project-lite"
version = "0.2.15"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "915a1e146535de9163f3987b8944ed8cf49a18bb0056bcebcdcece385cece4ff"
[[package]]
name = "pin-utils"
version = "0.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
[[package]]
name = "proc-macro2"
version = "1.0.89"
@ -555,6 +657,7 @@ dependencies = [
"clap",
"crossterm",
"csvx",
"futures",
"ratatui",
"thiserror",
]
@ -589,6 +692,15 @@ dependencies = [
"libc",
]
[[package]]
name = "slab"
version = "0.4.9"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8f92a496fb766b417c996b9c5e57daf2f7ad3b0bebe1ccfca4856390e3d3bb67"
dependencies = [
"autocfg",
]
[[package]]
name = "smallvec"
version = "1.13.2"

3
Cargo.toml
View File

@ -8,7 +8,8 @@ edition = "2021"
[dependencies]
anyhow = { version = "1.0.91", features = ["backtrace"] }
clap = { version = "4.5.20", features = ["derive"] }
crossterm = "0.28.1"
crossterm = { version = "0.28.1", features = ["event-stream"] }
csvx = "0.1.17"
futures = "0.3.31"
ratatui = "0.29.0"
thiserror = "1.0.65"

17
src/main.rs
View File

@ -1,8 +1,8 @@
use std::path::PathBuf;
use std::{path::PathBuf, process::ExitCode};
use clap::Parser;
use crossterm::event::{self, Event, KeyCode, KeyEventKind};
use ratatui;
use ui::Workspace;
mod sheet;
mod ui;
@ -14,18 +14,17 @@ pub struct Args {
workbook: PathBuf,
}
fn run(terminal: &mut ratatui::DefaultTerminal, name: PathBuf) -> std::io::Result<()> {
fn run(terminal: &mut ratatui::DefaultTerminal, name: PathBuf) -> anyhow::Result<ExitCode> {
let mut ws = Workspace::load(&name)?;
loop {
terminal.draw(|frame| ui::draw(frame, &name))?;
if let Event::Key(key) = event::read()? {
if key.kind == KeyEventKind::Press && key.code == KeyCode::Char('q') {
return Ok(());
}
terminal.draw(|frame| ui::draw(frame, &mut ws))?;
if let Some(code) = ws.handle_event()? {
return Ok(code);
}
}
}
fn main() -> std::io::Result<()> {
fn main() -> anyhow::Result<ExitCode> {
let args = Args::parse();
let mut terminal = ratatui::init();

17
src/sheet/mod.rs
View File

@ -46,10 +46,10 @@ impl CellValue {
}
/// The Address in a [Tbl].
#[derive(Default, Debug, PartialEq, PartialOrd, Ord, Eq)]
#[derive(Default, Debug, PartialEq, PartialOrd, Ord, Eq, Clone)]
pub struct Address {
row: usize,
col: usize,
pub row: usize,
pub col: usize,
}
impl Address {
@ -61,6 +61,7 @@ impl Address {
/// A single table of addressable computable values.
pub struct Tbl {
pub csv: csvx::Table,
pub location: Address,
}
impl Tbl {
@ -82,9 +83,19 @@ impl Tbl {
Ok(Self {
csv: csvx::Table::new(input)
.map_err(|e| anyhow!("Error parsing table from csv text: {}", e))?,
location: Address::default(),
})
}
pub fn move_to(&mut self, addr: Address) -> Result<()> {
let (row, col) = self.dimensions();
if addr.row >= row || addr.col >= col {
return Err(anyhow!("Invalid address to move to: {:?}", addr));
}
self.location = addr;
Ok(())
}
pub fn update_entry(&mut self, address: Address, value: CellValue) -> Result<()> {
// TODO(zaphar): At some point we'll need to store the graph of computation
let (row, col) = self.dimensions();

198
src/ui/mod.rs
View File

@ -1,22 +1,39 @@
//! Ui rendering logic
use std::{fs::File, io::Read, path::PathBuf};
use std::{fs::File, io::Read, path::PathBuf, process::ExitCode};
use super::sheet::Tbl;
use super::sheet::{Address, Tbl};
use anyhow::{Context, Result};
use crossterm::event::{self, Event, KeyCode, KeyEventKind};
use ratatui::{
self,
layout::{Constraint, Flex, Layout},
layout::{Constraint, Flex},
style::{Color, Stylize},
text::Text,
widgets::{Block, Cell, Row, Table, Tabs, Widget},
text::{Line, Text},
widgets::{Block, Cell, Row, Table, Widget},
Frame,
};
#[derive(Default, Debug, PartialEq)]
pub enum Modality {
#[default]
Navigate,
CellEdit,
}
#[derive(Default, Debug)]
pub struct AppState {
pub modality: Modality,
}
// Interaction Modalities
// * Navigate
// * Edit
pub struct Workspace {
name: String,
tbl: Tbl,
state: AppState,
}
impl Workspace {
@ -24,6 +41,7 @@ impl Workspace {
Self {
tbl,
name: name.into(),
state: AppState::default(),
}
}
@ -31,25 +49,142 @@ impl Workspace {
let mut f = File::open(path)?;
let mut buf = Vec::new();
let _ = f.read_to_end(&mut buf)?;
let input = String::from_utf8(buf)
.context(format!("Error reading file: {:?}", path))?;
let tbl = Tbl::from_str(input)?;
Ok(Workspace::new(tbl, path.file_name().map(|p| p.to_string_lossy().to_string()).unwrap_or_else(|| "Unknown".to_string())))
let input = String::from_utf8(buf).context(format!("Error reading file: {:?}", path))?;
let mut tbl = Tbl::from_str(input)?;
tbl.move_to(Address { row: 0, col: 0 })?;
Ok(Workspace::new(
tbl,
path.file_name()
.map(|p| p.to_string_lossy().to_string())
.unwrap_or_else(|| "Unknown".to_string()),
))
}
pub fn move_down(&mut self) -> Result<()> {
// TODO(jwall): Add a row automatically if necessary?
let mut loc = self.tbl.location.clone();
let (row, _) = self.tbl.dimensions();
if loc.row < row-1 {
loc.row += 1;
self.tbl.move_to(loc)?;
}
Ok(())
}
pub fn move_up(&mut self) -> Result<()> {
let mut loc = self.tbl.location.clone();
if loc.row > 0 {
loc.row -= 1;
self.tbl.move_to(loc)?;
}
Ok(())
}
pub fn move_left(&mut self) -> Result<()> {
let mut loc = self.tbl.location.clone();
if loc.col > 0 {
loc.col -= 1;
self.tbl.move_to(loc)?;
}
Ok(())
}
pub fn move_right(&mut self) -> Result<()> {
// TODO(jwall): Add a column automatically if necessary?
let mut loc = self.tbl.location.clone();
let (_, col) = self.tbl.dimensions();
if loc.col < col-1 {
loc.col += 1;
self.tbl.move_to(loc)?;
}
Ok(())
}
pub fn handle_event(&mut self) -> Result<Option<ExitCode>> {
if let Event::Key(key) = event::read()? {
return Ok(match self.state.modality {
Modality::Navigate => self.handle_navigation_event(key)?,
Modality::CellEdit => self.handle_edit_event(key)?,
});
}
Ok(None)
}
fn handle_edit_event(&mut self, key: event::KeyEvent) -> Result<Option<ExitCode>> {
if key.kind == KeyEventKind::Press {
match key.code {
KeyCode::Esc => {
self.state.modality = Modality::Navigate;
},
KeyCode::Char('j') => {
self.move_down()?;
},
KeyCode::Char('k') => {
self.move_up()?;
},
KeyCode::Char('h') => {
self.move_left()?;
},
KeyCode::Char('l') => {
self.move_right()?;
},
_ => {
// noop
}
}
}
Ok(None)
}
fn handle_navigation_event(&mut self, key: event::KeyEvent) -> Result<Option<ExitCode>> {
if key.kind == KeyEventKind::Press {
match key.code {
KeyCode::Esc => {
self.state.modality = Modality::Navigate;
},
KeyCode::Char('q') => {
return Ok(Some(ExitCode::SUCCESS));
},
KeyCode::Char('j') => {
self.move_down()?;
},
KeyCode::Char('k') => {
self.move_up()?;
},
KeyCode::Char('h') => {
self.move_left()?;
},
KeyCode::Char('l') => {
self.move_right()?;
},
KeyCode::Char('e') => {
self.state.modality = Modality::CellEdit;
},
_ => {
// noop
}
}
}
return Ok(None);
}
// navigation methods left, right, up, down
}
impl Widget for Workspace {
impl<'a> Widget for &'a Workspace {
fn render(self, area: ratatui::prelude::Rect, buf: &mut ratatui::prelude::Buffer)
where
Self: Sized,
{
use Constraint::{Min, Percentage};
let rects = Layout::vertical([Min(1), Percentage(90)]).split(area);
let table = Table::from(&self.tbl);
let tabs = Tabs::new(vec![self.name.clone()]).select(0);
tabs.render(rects[0], buf);
table.render(rects[1], buf);
let block = Block::bordered()
.title(Line::from(self.name.as_str()))
.title_bottom(match &self.state.modality {
Modality::Navigate => "navigate",
Modality::CellEdit => "edit",
})
.title_bottom(Line::from(format!("{},{}", self.tbl.location.row, self.tbl.location.col)).right_aligned());
let table = Table::from(&self.tbl).block(block);
table.render(area, buf);
}
}
@ -66,24 +201,29 @@ impl<'t> From<&Tbl> for Table<'t> {
.get_calculated_table()
.iter()
.enumerate()
.map(|(i, r)| {
let cells = vec![Cell::new(format!("{}", i))]
.map(|(ri, r)| {
let cells =
vec![Cell::new(format!("{}", ri))]
.into_iter()
.chain(r.iter().map(|v| {
.chain(r.iter().enumerate().map(|(ci, v)| {
let content = format!("{}", v);
Cell::new(Text::raw(content))
.bg(if i % 2 == 0 {
let cell = Cell::new(Text::raw(content));
match (value.location.row == ri, value.location.col == ci) {
(true, true) =>
cell
.fg(Color::White).underlined(),
_ =>
cell.bg(if ri % 2 == 0 {
Color::Rgb(57, 61, 71)
} else {
Color::Rgb(165, 169, 160)
})
.fg(if i % 2 == 0 {
.fg(if ri % 2 == 0 {
Color::White
} else {
Color::Rgb(31,32,34)
})
.underlined()
.bold()
Color::Rgb(31, 32, 34)
}),
}.bold()
}));
Row::new(cells)
})
@ -103,8 +243,6 @@ impl<'t> From<&Tbl> for Table<'t> {
}
}
pub fn draw(frame: &mut Frame, name: &PathBuf) {
let ws = Workspace::load(name).unwrap();
pub fn draw(frame: &mut Frame, ws: &Workspace) {
frame.render_widget(ws, frame.area());
}