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//! Mouse input: clicks, drags, and wheel scrolls, resolved against the hit
//! rects the renderer left in `FrameOut`.
use crate::*;
/// Mouse input. Mirrors `handle_key`: returns `true` when the app should quit.
pub(crate) fn handle_mouse(
app: &mut App,
out: &FrameOut,
m: crossterm::event::MouseEvent,
chans: &UiChannels,
) -> bool {
if matches!(
m.kind,
MouseEventKind::Down(MouseButton::Left) | MouseEventKind::Drag(MouseButton::Left)
) {
let is_down = matches!(m.kind, MouseEventKind::Down(MouseButton::Left));
let mut consumed = false;
// Drag the sidebar scrollbar (2-col grab target) to scroll.
if let Some(sb) = out.hits.scroll {
if m.column + 1 >= sb.x
&& m.column <= sb.x
&& m.row >= sb.y
&& m.row < sb.y + sb.height
&& sb.height > 0
{
consumed = true;
let total = out.hits.scroll_len;
if total > 1 {
let denom = sb.height.saturating_sub(1).max(1) as f32;
let frac = (m.row - sb.y) as f32 / denom;
let sel = (frac * (total - 1) as f32).round() as usize;
app.browse.selected = sel.min(total - 1);
app.normalize_selection();
}
}
}
// Click/drag the volume meter bars to set volume.
if !consumed {
if let Some(vr) = out.hits.vol {
if m.row == vr.y && m.column >= vr.x && m.column < vr.x + vr.width && vr.width > 0 {
consumed = true;
let offset = (m.column - vr.x) as u32;
let vol = (((offset + 1) * 100) / vr.width as u32).min(100) as u8;
app.transport.volume = vol;
let _ = app.svc.engine.set_volume(vol_u16(app.transport.volume));
}
}
}
// Otherwise an initial click on the progress bar seeks.
if !consumed && is_down {
if let Some(bar) = out.hits.bar {
if m.row == bar.y
&& m.column >= bar.x
&& m.column < bar.x + bar.width
&& bar.width > 0
{
if let Some(dur) = app.playback.now.as_ref().map(|n| n.duration_ms) {
let frac = (m.column - bar.x) as f32 / bar.width as f32;
app.playback
.seek_to(&app.svc.engine, (frac * dur as f32) as u32);
}
}
}
}
// View-tab click -> switch the right pane.
if !consumed && is_down {
let hit = out
.hits
.tabs
.iter()
.find(|(_, r)| m.row == r.y && m.column >= r.x && m.column < r.x + r.width)
.map(|(v, _)| *v);
if let Some(v) = hit {
app.view.mode = v;
consumed = true;
}
}
// Library click -> select; double-click (same row <400ms) -> activate.
if !consumed && is_down {
if let Some(lr) = out.hits.lib {
if m.column >= lr.x
&& m.column < lr.x + lr.width
&& m.row >= lr.y
&& m.row < lr.y + lr.height
{
let idx = out.lib_offset + (m.row - lr.y) as usize;
let selectable = app
.cur_items()
.get(idx)
.map(|it| !it.is_header)
.unwrap_or(false);
if selectable {
app.browse.selected = idx;
let now = Instant::now();
let dbl = app
.session
.last_click
.map(|(r0, t0)| {
r0 == m.row && now.duration_since(t0) < Duration::from_millis(400)
})
.unwrap_or(false);
if dbl {
app.session.last_click = None;
let quit =
handle_key(app, KeyCode::Enter, KeyModifiers::empty(), chans);
if quit {
return true;
}
} else {
app.session.last_click = Some((m.row, now));
}
}
}
}
}
}
// Scroll wheel → volume (anywhere in the window).
if matches!(
m.kind,
MouseEventKind::ScrollUp | MouseEventKind::ScrollDown
) {
match m.kind {
MouseEventKind::ScrollUp => {
app.transport.volume = (app.transport.volume + 5).min(100);
let _ = app.svc.engine.set_volume(vol_u16(app.transport.volume));
}
MouseEventKind::ScrollDown => {
app.transport.volume = app.transport.volume.saturating_sub(5);
let _ = app.svc.engine.set_volume(vol_u16(app.transport.volume));
}
_ => {}
}
}
false
}