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//! Mouse input: clicks, scrolling and double-clicks on rows.
use super::App;
use super::state::{LayoutMode, View};
use crate::event::MouseAction;
impl App {
/// Handle a mouse action.
pub(super) fn handle_mouse_action(&mut self, action: MouseAction) {
// Store the last content area dimensions for hit testing
// In a real implementation, we would track the rendered areas from the last frame
// For now, we implement basic scroll wheel and click functionality
// The wheel over the Miller preview scrolls the preview.
if let MouseAction::ScrollUp { x, .. } | MouseAction::ScrollDown { x, .. } = action
&& self.view == View::Explorer
&& self.layout_mode == LayoutMode::Miller
&& x >= self.preview_area.get().x
{
let step = super::constants::PREVIEW_SCROLL_STEP;
let delta = if matches!(action, MouseAction::ScrollUp { .. }) {
-step
} else {
step
};
self.scroll_preview(delta);
return;
}
match action {
MouseAction::ScrollUp { .. } => {
// Scroll up - move selection up
match self.view {
View::Explorer => {
for _ in 0..3 {
self.move_up();
}
}
View::Duplicates => {
// Collect group info to avoid borrow issues
let group_info: Vec<usize> = self
.get_filtered_duplicates()
.map(|(filtered, _)| filtered.iter().map(|g| g.paths.len()).collect())
.unwrap_or_default();
let group_count = group_info.len();
for _ in 0..3 {
self.duplicates_state
.move_up(group_count, |i| group_info.get(i).copied().unwrap_or(0));
}
}
View::Age => {
for _ in 0..3 {
if self.selected_stale_dir > 0 {
self.selected_stale_dir -= 1;
}
}
}
View::Errors => {
for _ in 0..3 {
if self.selected_warning > 0 {
self.selected_warning -= 1;
}
}
}
View::Treemap => {
for _ in 0..3 {
self.nav.treemap_state.move_prev();
}
}
}
}
MouseAction::ScrollDown { .. } => {
// Scroll down - move selection down
match self.view {
View::Explorer => {
for _ in 0..3 {
self.move_down();
}
}
View::Duplicates => {
// Collect group info to avoid borrow issues
let group_info: Vec<usize> = self
.get_filtered_duplicates()
.map(|(filtered, _)| filtered.iter().map(|g| g.paths.len()).collect())
.unwrap_or_default();
let group_count = group_info.len();
for _ in 0..3 {
self.duplicates_state.move_down(group_count, |i| {
group_info.get(i).copied().unwrap_or(0)
});
}
}
View::Age => {
let max = self
.get_filtered_stale_dirs()
.map(|dirs| dirs.len().saturating_sub(1))
.unwrap_or(0);
for _ in 0..3 {
if self.selected_stale_dir < max {
self.selected_stale_dir += 1;
}
}
}
View::Errors => {
let max = self.warning_count().saturating_sub(1);
for _ in 0..3 {
if self.selected_warning < max {
self.selected_warning += 1;
}
}
}
View::Treemap => {
for _ in 0..3 {
self.nav.treemap_state.move_next(self.cached_treemap_len);
}
}
}
}
MouseAction::Click { y, .. } if self.view == View::Explorer => {
// For now, simple click-to-select functionality
// Calculate which item was clicked based on the Y position
// This is a simplified implementation - a more complete version would
// track rendered areas from the last frame
let list_top = self.estimated_list_top_row();
let _footer_height: u16 = 1; // Reserved for future use in click calculation
if y >= list_top {
let relative_y = (y - list_top) as usize;
match self.layout_mode {
LayoutMode::Tree => {
let new_selected = self.nav.tree_state.offset + relative_y;
if new_selected < self.cached_tree_len {
self.nav.tree_state.selected = new_selected;
}
}
LayoutMode::Miller => {
// In Miller mode, the middle column starts after the left column
// This is a simplified version - we just select by row
let new_selected = self.nav.miller_state.offset + relative_y;
if new_selected < self.cached_miller_len {
self.nav.miller_state.selected = new_selected;
self.update_preview();
}
}
}
}
}
MouseAction::DoubleClick { y, .. } if self.view == View::Explorer => {
// Double-click to enter directory
let list_top = self.estimated_list_top_row();
if y >= list_top {
let relative_y = (y - list_top) as usize;
match self.layout_mode {
LayoutMode::Tree => {
let new_selected = self.nav.tree_state.offset + relative_y;
if new_selected < self.cached_tree_len {
self.nav.tree_state.selected = new_selected;
self.enter_selected();
}
}
LayoutMode::Miller => {
let new_selected = self.nav.miller_state.offset + relative_y;
if new_selected < self.cached_miller_len {
self.nav.miller_state.selected = new_selected;
self.enter_selected();
}
}
}
}
}
MouseAction::RightClick { y, .. } if self.view == View::Explorer => {
// Right-click to toggle mark
let list_top = self.estimated_list_top_row();
if y >= list_top {
let relative_y = (y - list_top) as usize;
match self.layout_mode {
LayoutMode::Tree => {
let new_selected = self.nav.tree_state.offset + relative_y;
if new_selected < self.cached_tree_len {
self.nav.tree_state.selected = new_selected;
self.toggle_mark();
}
}
LayoutMode::Miller => {
let new_selected = self.nav.miller_state.offset + relative_y;
if new_selected < self.cached_miller_len {
self.nav.miller_state.selected = new_selected;
self.toggle_mark();
}
}
}
}
}
_ => {}
}
}
/// Absolute row of the first list item, for click hit testing.
///
/// Mirrors the renderer's vertical stack: the header row, an optional
/// directory-tab row, the view-tab row, an optional scan/analysis/quick-list
/// banner row, then the list block's top border (both the Tree and Miller
/// widgets draw inside a bordered block). Hit testing is lightweight, but this
/// must match the layout exactly or clicks land on the wrong row.
pub(super) fn estimated_list_top_row(&self) -> u16 {
let chrome_rows = if self.tab_manager.len() > 1 { 3 } else { 2 };
let banner_rows =
u16::from(self.scan_progress.is_some() || self.analyzing || !self.has_full_scan);
let border_row = 1;
chrome_rows + banner_rows + border_row
}
}