Refactoring
This commit is contained in:
416
seq/src/input.rs
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416
seq/src/input.rs
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@@ -0,0 +1,416 @@
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use crossbeam_channel::Sender;
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use crossterm::event::{Event, KeyCode, KeyEvent, KeyModifiers};
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use std::path::PathBuf;
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use std::sync::atomic::{AtomicBool, Ordering};
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use std::sync::Arc;
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use crate::app::App;
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use crate::link::LinkState;
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use crate::model::PatternSpeed;
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use crate::page::Page;
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use crate::sequencer::{AudioCommand, SequencerSnapshot};
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use crate::state::{AudioFocus, Focus, Modal, PatternField, PatternsViewLevel};
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use crate::views::doc_view;
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pub enum InputResult {
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Continue,
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Quit,
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}
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pub struct InputContext<'a> {
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pub app: &'a mut App,
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pub link: &'a LinkState,
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pub snapshot: &'a SequencerSnapshot,
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pub playing: &'a Arc<AtomicBool>,
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pub audio_tx: &'a Sender<AudioCommand>,
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}
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pub fn handle_key(ctx: &mut InputContext, key: KeyEvent) -> InputResult {
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ctx.app.clear_status();
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if matches!(ctx.app.modal, Modal::None) {
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handle_normal_input(ctx, key)
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} else {
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handle_modal_input(ctx, key)
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}
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}
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fn handle_modal_input(ctx: &mut InputContext, key: KeyEvent) -> InputResult {
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match &mut ctx.app.modal {
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Modal::ConfirmQuit { selected } => match key.code {
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KeyCode::Char('y') | KeyCode::Char('Y') => return InputResult::Quit,
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KeyCode::Char('n') | KeyCode::Char('N') | KeyCode::Esc => {
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ctx.app.modal = Modal::None;
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}
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KeyCode::Left | KeyCode::Right => {
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*selected = !*selected;
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}
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KeyCode::Enter => {
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if *selected {
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return InputResult::Quit;
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} else {
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ctx.app.modal = Modal::None;
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}
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}
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_ => {}
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},
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Modal::SaveAs(path) => match key.code {
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KeyCode::Enter => {
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let save_path = PathBuf::from(path.as_str());
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ctx.app.modal = Modal::None;
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ctx.app.save(save_path);
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}
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KeyCode::Esc => ctx.app.modal = Modal::None,
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KeyCode::Backspace => {
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path.pop();
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}
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KeyCode::Char(c) => path.push(c),
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_ => {}
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},
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Modal::LoadFrom(path) => match key.code {
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KeyCode::Enter => {
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let load_path = PathBuf::from(path.as_str());
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ctx.app.modal = Modal::None;
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ctx.app.load(load_path, ctx.link);
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}
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KeyCode::Esc => ctx.app.modal = Modal::None,
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KeyCode::Backspace => {
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path.pop();
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}
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KeyCode::Char(c) => path.push(c),
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_ => {}
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},
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Modal::RenameBank { bank, name } => match key.code {
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KeyCode::Enter => {
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let bank_idx = *bank;
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let new_name = if name.trim().is_empty() {
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None
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} else {
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Some(name.clone())
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};
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ctx.app.project.banks[bank_idx].name = new_name;
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ctx.app.modal = Modal::None;
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}
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KeyCode::Esc => ctx.app.modal = Modal::None,
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KeyCode::Backspace => {
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name.pop();
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}
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KeyCode::Char(c) => name.push(c),
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_ => {}
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},
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Modal::RenamePattern {
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bank,
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pattern,
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name,
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} => match key.code {
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KeyCode::Enter => {
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let (bank_idx, pattern_idx) = (*bank, *pattern);
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let new_name = if name.trim().is_empty() {
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None
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} else {
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Some(name.clone())
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};
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ctx.app.project.banks[bank_idx].patterns[pattern_idx].name = new_name;
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ctx.app.modal = Modal::None;
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}
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KeyCode::Esc => ctx.app.modal = Modal::None,
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KeyCode::Backspace => {
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name.pop();
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}
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KeyCode::Char(c) => name.push(c),
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_ => {}
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},
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Modal::SetPattern { field, input } => match key.code {
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KeyCode::Enter => {
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let field = *field;
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let (bank, pattern) = (ctx.app.editor_ctx.bank, ctx.app.editor_ctx.pattern);
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match field {
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PatternField::Length => {
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if let Ok(len) = input.parse::<usize>() {
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ctx.app
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.project
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.pattern_at_mut(bank, pattern)
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.set_length(len);
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let new_len = ctx.app.project.pattern_at(bank, pattern).length;
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if ctx.app.editor_ctx.step >= new_len {
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ctx.app.editor_ctx.step = new_len - 1;
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}
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ctx.app.dirty_patterns.insert((bank, pattern));
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ctx.app.status_message = Some(format!("Length set to {new_len}"));
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} else {
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ctx.app.status_message = Some("Invalid length".to_string());
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}
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}
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PatternField::Speed => {
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if let Some(speed) = PatternSpeed::from_label(input) {
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ctx.app.project.pattern_at_mut(bank, pattern).speed = speed;
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ctx.app.dirty_patterns.insert((bank, pattern));
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ctx.app.status_message =
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Some(format!("Speed set to {}", speed.label()));
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} else {
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ctx.app.status_message = Some(
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"Invalid speed (try 1/8x, 1/4x, 1/2x, 1x, 2x, 4x, 8x)".to_string(),
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);
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}
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}
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}
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ctx.app.modal = Modal::None;
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}
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KeyCode::Esc => ctx.app.modal = Modal::None,
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KeyCode::Backspace => {
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input.pop();
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}
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KeyCode::Char(c) => input.push(c),
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_ => {}
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},
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Modal::AddSamplePath(path) => match key.code {
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KeyCode::Enter => {
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let sample_path = PathBuf::from(path.as_str());
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if sample_path.is_dir() {
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let index = doux::loader::scan_samples_dir(&sample_path);
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let count = index.len();
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let _ = ctx.audio_tx.send(AudioCommand::LoadSamples(index));
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ctx.app.audio.config.sample_count += count;
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ctx.app.audio.add_sample_path(sample_path);
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ctx.app.status_message = Some(format!("Added {count} samples"));
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} else {
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ctx.app.status_message = Some("Path is not a directory".to_string());
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}
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ctx.app.modal = Modal::None;
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}
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KeyCode::Esc => ctx.app.modal = Modal::None,
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KeyCode::Backspace => {
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path.pop();
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}
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KeyCode::Char(c) => path.push(c),
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_ => {}
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},
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Modal::None => unreachable!(),
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}
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InputResult::Continue
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}
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fn handle_normal_input(ctx: &mut InputContext, key: KeyEvent) -> InputResult {
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let ctrl = key.modifiers.contains(KeyModifiers::CONTROL);
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// Global navigation with Ctrl+arrows
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if ctrl {
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match key.code {
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KeyCode::Left => {
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ctx.app.page.left();
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return InputResult::Continue;
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}
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KeyCode::Right => {
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ctx.app.page.right();
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return InputResult::Continue;
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}
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KeyCode::Up => {
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ctx.app.page.up();
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return InputResult::Continue;
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}
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KeyCode::Down => {
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ctx.app.page.down();
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return InputResult::Continue;
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}
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_ => {}
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}
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}
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match ctx.app.page {
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Page::Main => handle_main_page(ctx, key, ctrl),
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Page::Patterns => handle_patterns_page(ctx, key),
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Page::Audio => handle_audio_page(ctx, key),
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Page::Doc => handle_doc_page(ctx, key),
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}
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}
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fn handle_main_page(ctx: &mut InputContext, key: KeyEvent, ctrl: bool) -> InputResult {
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match ctx.app.editor_ctx.focus {
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Focus::Sequencer => match key.code {
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KeyCode::Char('q') => {
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ctx.app.modal = Modal::ConfirmQuit { selected: false };
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}
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KeyCode::Char(' ') => {
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ctx.app.toggle_playing();
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ctx.playing.store(ctx.app.playing, Ordering::Relaxed);
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}
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KeyCode::Tab => ctx.app.toggle_focus(ctx.link),
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KeyCode::Left => ctx.app.prev_step(),
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KeyCode::Right => ctx.app.next_step(),
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KeyCode::Up => ctx.app.step_up(),
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KeyCode::Down => ctx.app.step_down(),
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KeyCode::Enter => ctx.app.toggle_step(),
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KeyCode::Char('s') => {
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let default = ctx
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.app
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.file_path
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.as_ref()
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.map(|p| p.display().to_string())
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.unwrap_or_else(|| "project.buboseq".to_string());
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ctx.app.modal = Modal::SaveAs(default);
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}
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KeyCode::Char('l') => {
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ctx.app.modal = Modal::LoadFrom(String::new());
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}
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KeyCode::Char('+') | KeyCode::Char('=') => ctx.app.tempo_up(ctx.link),
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KeyCode::Char('-') => ctx.app.tempo_down(ctx.link),
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KeyCode::Char('<') | KeyCode::Char(',') => ctx.app.length_decrease(),
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KeyCode::Char('>') | KeyCode::Char('.') => ctx.app.length_increase(),
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KeyCode::Char('[') => ctx.app.speed_decrease(),
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KeyCode::Char(']') => ctx.app.speed_increase(),
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KeyCode::Char('L') => ctx.app.open_pattern_modal(PatternField::Length),
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KeyCode::Char('S') => ctx.app.open_pattern_modal(PatternField::Speed),
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KeyCode::Char('c') if ctrl => ctx.app.copy_step(),
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KeyCode::Char('v') if ctrl => ctx.app.paste_step(ctx.link),
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_ => {}
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},
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Focus::Editor => match key.code {
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KeyCode::Tab | KeyCode::Esc => ctx.app.toggle_focus(ctx.link),
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KeyCode::Char('e') if ctrl => {
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ctx.app.save_editor_to_step();
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ctx.app.compile_current_step(ctx.link);
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}
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_ => {
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ctx.app.editor_ctx.text.input(Event::Key(key));
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}
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},
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}
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InputResult::Continue
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}
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fn handle_patterns_page(ctx: &mut InputContext, key: KeyEvent) -> InputResult {
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match key.code {
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KeyCode::Left => ctx.app.patterns_cursor = (ctx.app.patterns_cursor + 15) % 16,
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KeyCode::Right => ctx.app.patterns_cursor = (ctx.app.patterns_cursor + 1) % 16,
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KeyCode::Up => ctx.app.patterns_cursor = (ctx.app.patterns_cursor + 12) % 16,
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KeyCode::Down => ctx.app.patterns_cursor = (ctx.app.patterns_cursor + 4) % 16,
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KeyCode::Esc | KeyCode::Backspace => match ctx.app.patterns_view_level {
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PatternsViewLevel::Banks => ctx.app.page.down(),
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PatternsViewLevel::Patterns { .. } => {
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ctx.app.patterns_view_level = PatternsViewLevel::Banks;
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ctx.app.patterns_cursor = 0;
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}
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},
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KeyCode::Enter => match ctx.app.patterns_view_level {
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PatternsViewLevel::Banks => {
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let bank = ctx.app.patterns_cursor;
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ctx.app.patterns_view_level = PatternsViewLevel::Patterns { bank };
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ctx.app.patterns_cursor = 0;
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}
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PatternsViewLevel::Patterns { bank } => {
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let pattern = ctx.app.patterns_cursor;
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ctx.app.select_edit_bank(bank);
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ctx.app.select_edit_pattern(pattern);
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ctx.app.patterns_view_level = PatternsViewLevel::Banks;
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ctx.app.patterns_cursor = 0;
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ctx.app.page.down();
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}
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},
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KeyCode::Char(' ') => {
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if let PatternsViewLevel::Patterns { bank } = ctx.app.patterns_view_level {
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let pattern = ctx.app.patterns_cursor;
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ctx.app.toggle_pattern_playback(bank, pattern, ctx.snapshot);
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}
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}
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KeyCode::Char('q') => {
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ctx.app.modal = Modal::ConfirmQuit { selected: false };
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}
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KeyCode::Char('r') => match ctx.app.patterns_view_level {
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PatternsViewLevel::Banks => {
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let bank = ctx.app.patterns_cursor;
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let current_name = ctx.app.project.banks[bank].name.clone().unwrap_or_default();
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ctx.app.modal = Modal::RenameBank {
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bank,
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name: current_name,
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};
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}
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PatternsViewLevel::Patterns { bank } => {
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let pattern = ctx.app.patterns_cursor;
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let current_name = ctx.app.project.banks[bank].patterns[pattern]
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.name
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.clone()
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.unwrap_or_default();
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ctx.app.modal = Modal::RenamePattern {
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bank,
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pattern,
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name: current_name,
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};
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}
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},
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_ => {}
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}
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InputResult::Continue
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}
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fn handle_audio_page(ctx: &mut InputContext, key: KeyEvent) -> InputResult {
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match key.code {
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KeyCode::Char('q') => {
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ctx.app.modal = Modal::ConfirmQuit { selected: false };
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}
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KeyCode::Up | KeyCode::Char('k') => ctx.app.audio.prev_focus(),
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KeyCode::Down | KeyCode::Char('j') => ctx.app.audio.next_focus(),
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KeyCode::Left => match ctx.app.audio.focus {
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AudioFocus::OutputDevice => ctx.app.audio.prev_output_device(),
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AudioFocus::InputDevice => ctx.app.audio.prev_input_device(),
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AudioFocus::Channels => ctx.app.audio.adjust_channels(-1),
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AudioFocus::BufferSize => ctx.app.audio.adjust_buffer_size(-64),
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AudioFocus::SamplePaths => ctx.app.audio.remove_last_sample_path(),
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},
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KeyCode::Right => match ctx.app.audio.focus {
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AudioFocus::OutputDevice => ctx.app.audio.next_output_device(),
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AudioFocus::InputDevice => ctx.app.audio.next_input_device(),
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AudioFocus::Channels => ctx.app.audio.adjust_channels(1),
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AudioFocus::BufferSize => ctx.app.audio.adjust_buffer_size(64),
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AudioFocus::SamplePaths => {}
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},
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KeyCode::Char('R') => ctx.app.audio.trigger_restart(),
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KeyCode::Char('A') => ctx.app.modal = Modal::AddSamplePath(String::new()),
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KeyCode::Char('D') => {
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ctx.app.audio.refresh_devices();
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let out_count = ctx.app.audio.output_devices.len();
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let in_count = ctx.app.audio.input_devices.len();
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ctx.app.status_message = Some(format!(
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"Found {out_count} output, {in_count} input devices"
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));
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}
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KeyCode::Char('h') => {
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let _ = ctx.audio_tx.send(AudioCommand::Hush);
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}
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KeyCode::Char('p') => {
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let _ = ctx.audio_tx.send(AudioCommand::Panic);
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}
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KeyCode::Char('r') => ctx.app.metrics.peak_voices = 0,
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KeyCode::Char('t') => {
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let _ = ctx
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.audio_tx
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.send(AudioCommand::Evaluate("sin 440 * 0.3".into()));
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}
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KeyCode::Char(' ') => {
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ctx.app.toggle_playing();
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ctx.playing.store(ctx.app.playing, Ordering::Relaxed);
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}
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_ => {}
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}
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InputResult::Continue
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}
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fn handle_doc_page(ctx: &mut InputContext, key: KeyEvent) -> InputResult {
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let topic_count = doc_view::topic_count();
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match key.code {
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KeyCode::Char('j') | KeyCode::Down => {
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ctx.app.doc_topic = (ctx.app.doc_topic + 1) % topic_count;
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ctx.app.doc_scroll = 0;
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}
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KeyCode::Char('k') | KeyCode::Up => {
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ctx.app.doc_topic = (ctx.app.doc_topic + topic_count - 1) % topic_count;
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ctx.app.doc_scroll = 0;
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}
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KeyCode::PageDown => ctx.app.doc_scroll = ctx.app.doc_scroll.saturating_add(10),
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KeyCode::PageUp => ctx.app.doc_scroll = ctx.app.doc_scroll.saturating_sub(10),
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KeyCode::Char('q') => {
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ctx.app.modal = Modal::ConfirmQuit { selected: false };
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}
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_ => {}
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}
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InputResult::Continue
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}
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