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|
use crate::compositor::{Component, Compositor, Context, EventResult};
use crossterm::event::{Event, KeyCode, KeyEvent, KeyModifiers};
use tui::buffer::Buffer as Surface;
use tui::{
layout::Rect,
style::{Color, Style},
widgets::{Block, Borders},
};
use fuzzy_matcher::skim::SkimMatcherV2 as Matcher;
use fuzzy_matcher::FuzzyMatcher;
use ignore::Walk;
use std::path::PathBuf;
use crate::ui::{Prompt, PromptEvent};
use helix_core::Position;
use helix_view::Editor;
pub struct Picker {
files: Vec<PathBuf>,
// filter: String,
matcher: Box<Matcher>,
cursor: usize,
// pattern: String,
prompt: Prompt,
}
impl Picker {
pub fn new() -> Self {
let files = Walk::new("./").filter_map(|entry| match entry {
Ok(entry) => {
// filter dirs, but we might need special handling for symlinks!
if !entry.file_type().unwrap().is_dir() {
Some(entry.into_path())
} else {
None
}
}
Err(_err) => None,
});
let prompt = Prompt::new(
"".to_string(),
|pattern: &str| Vec::new(),
|editor: &mut Editor, pattern: &str, event: PromptEvent| {
//
},
);
const MAX: usize = 1024;
Self {
files: files.take(MAX).collect(),
matcher: Box::new(Matcher::default()),
cursor: 0,
prompt,
}
}
pub fn score(&mut self, pattern: &str) {
self.files.iter().filter_map(|path| match path.to_str() {
// TODO: using fuzzy_indices could give us the char idx for match highlighting
Some(path) => (self.matcher.fuzzy_match(path, pattern)),
None => None,
});
}
pub fn move_up(&mut self) {
self.cursor = self.cursor.saturating_sub(1);
}
pub fn move_down(&mut self) {
// TODO: len - 1
if self.cursor < self.files.len() {
self.cursor += 1;
}
}
}
// process:
// - read all the files into a list, maxed out at a large value
// - on input change:
// - score all the names in relation to input
impl Component for Picker {
fn handle_event(&mut self, event: Event, cx: &mut Context) -> EventResult {
let key_event = match event {
Event::Key(event) => event,
Event::Resize(..) => return EventResult::Consumed(None),
_ => return EventResult::Ignored,
};
let close_fn = EventResult::Consumed(Some(Box::new(|compositor: &mut Compositor| {
// remove the layer
compositor.pop();
})));
match key_event {
// KeyEvent {
// code: KeyCode::Char(c),
// modifiers: KeyModifiers::NONE,
// } => {
// self.insert_char(c);
// (self.callback_fn)(cx.editor, &self.line, PromptEvent::Update);
// }
KeyEvent {
code: KeyCode::Up, ..
}
| KeyEvent {
code: KeyCode::Char('k'),
modifiers: KeyModifiers::CONTROL,
} => self.move_up(),
KeyEvent {
code: KeyCode::Down,
..
}
| KeyEvent {
code: KeyCode::Char('j'),
modifiers: KeyModifiers::CONTROL,
} => self.move_down(),
KeyEvent {
code: KeyCode::Esc, ..
} => {
return close_fn;
}
_ => return self.prompt.handle_event(event, cx),
}
EventResult::Consumed(None)
}
fn render(&self, area: Rect, surface: &mut Surface, cx: &mut Context) {
let padding_vertical = area.height * 20 / 100;
let padding_horizontal = area.width * 20 / 100;
let area = Rect::new(
area.x + padding_horizontal,
area.y + padding_vertical,
area.width - padding_horizontal * 2,
area.height - padding_vertical * 2,
);
// -- Render the frame:
// clear area
for y in area.top()..area.bottom() {
for x in area.left()..area.right() {
surface.get_mut(x, y).reset()
}
}
use tui::widgets::Widget;
// don't like this but the lifetime sucks
let block = Block::default().borders(Borders::ALL);
// calculate the inner area inside the box
let inner = block.inner(area);
block.render(area, surface);
// TODO: abstract into a clear(area) fn
// surface.set_style(inner, Style::default().bg(Color::Rgb(150, 50, 0)));
// -- Render the input bar:
let area = Rect::new(inner.x + 1, inner.y, inner.width - 1, 1);
self.prompt.render(area, surface, cx);
// -- Separator
use tui::widgets::BorderType;
let style = Style::default().fg(Color::Rgb(90, 89, 119));
let symbols = BorderType::line_symbols(BorderType::Plain);
for x in inner.left()..inner.right() {
surface
.get_mut(x, inner.y + 1)
.set_symbol(symbols.horizontal)
.set_style(style);
}
// -- Render the contents:
let style = Style::default().fg(Color::Rgb(164, 160, 232)); // lavender
let selected = Style::default().fg(Color::Rgb(255, 255, 255));
let rows = inner.height - 2; // -1 for search bar
for (i, file) in self.files.iter().take(rows as usize).enumerate() {
if i == self.cursor {
surface.set_string(inner.x + 1, inner.y + 2 + i as u16, ">", selected);
}
surface.set_stringn(
inner.x + 3,
inner.y + 2 + i as u16,
file.strip_prefix("./").unwrap().to_str().unwrap(), // TODO: render paths without ./
inner.width as usize - 1,
if i == self.cursor { selected } else { style },
);
}
}
fn cursor_position(&self, area: Rect, ctx: &mut Context) -> Option<Position> {
self.prompt.cursor_position(area, ctx)
}
}
|
