return user to their previous position if they exit a subdir (#725)

* return user to their previous position if they enter a subdir

* fix lint

* implement changes proposed by adam

Co-authored-by: Adam Perkowski <adas1per@protonmail.com>

* add newline back

* coalesce `visit_stack` and `position_stack` (#6)

---------

Co-authored-by: nyx <nnyyxxxx@users.noreply.github.com>
Co-authored-by: Adam Perkowski <adas1per@protonmail.com>
Co-authored-by: cartercanedy <99052281+cartercanedy@users.noreply.github.com>
This commit is contained in:
nyx 2024-10-31 14:30:22 -04:00 committed by GitHub
parent 0c8977192f
commit 2d14a0a7b6
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@ -52,7 +52,7 @@ pub struct AppState {
current_tab: ListState,
/// This stack keeps track of our "current directory". You can think of it as `pwd`. but not
/// just the current directory, all paths that took us here, so we can "cd .."
visit_stack: Vec<NodeId>,
visit_stack: Vec<(NodeId, usize)>,
/// This is the state associated with the list widget, used to display the selection in the
/// widget
selection: ListState,
@ -78,6 +78,13 @@ pub struct ListEntry {
pub has_children: bool,
}
enum SelectedItem {
UpDir,
Directory,
Command,
None,
}
impl AppState {
pub fn new(theme: Theme, override_validation: bool) -> Self {
let (temp_dir, tabs) = linutil_core::get_tabs(!override_validation);
@ -89,7 +96,7 @@ impl AppState {
focus: Focus::List,
tabs,
current_tab: ListState::default().with_selected(Some(0)),
visit_stack: vec![root_id],
visit_stack: vec![(root_id, 0usize)],
selection: ListState::default().with_selected(Some(0)),
filter: Filter::new(),
multi_select: false,
@ -554,7 +561,7 @@ impl AppState {
self.filter.update_items(
&self.tabs,
self.current_tab.selected().unwrap(),
*self.visit_stack.last().unwrap(),
self.visit_stack.last().unwrap().0,
);
if !self.is_current_tab_multi_selectable() {
self.multi_select = false;
@ -578,10 +585,11 @@ impl AppState {
}
fn enter_parent_directory(&mut self) {
self.visit_stack.pop();
self.selection.select(Some(0));
if let Some((_, previous_position)) = self.visit_stack.pop() {
self.selection.select(Some(previous_position));
self.update_items();
}
}
fn get_selected_node(&self) -> Option<Rc<ListNode>> {
let mut selected_index = self.selection.selected().unwrap_or(0);
@ -607,20 +615,22 @@ impl AppState {
}
pub fn go_to_selected_dir(&mut self) {
let mut selected_index = self.selection.selected().unwrap_or(0);
let selected_index = self.selection.selected().unwrap_or(0);
if !self.at_root() && selected_index == 0 {
self.enter_parent_directory();
return;
}
if !self.at_root() {
selected_index = selected_index.saturating_sub(1);
}
let actual_index = if self.at_root() {
selected_index
} else {
selected_index - 1
};
if let Some(item) = self.filter.item_list().get(selected_index) {
if let Some(item) = self.filter.item_list().get(actual_index) {
if item.has_children {
self.visit_stack.push(item.id);
self.visit_stack.push((item.id, selected_index));
self.selection.select(Some(0));
self.update_items();
}
@ -652,7 +662,6 @@ impl AppState {
pub fn selected_item_is_up_dir(&self) -> bool {
let selected_index = self.selection.selected().unwrap_or(0);
!self.at_root() && selected_index == 0
}
@ -673,8 +682,23 @@ impl AppState {
}
}
fn get_selected_item_type(&self) -> SelectedItem {
if self.selected_item_is_up_dir() {
SelectedItem::UpDir
} else if self.selected_item_is_dir() {
SelectedItem::Directory
} else if self.selected_item_is_cmd() {
SelectedItem::Command
} else {
SelectedItem::None
}
}
fn handle_enter(&mut self) {
if self.selected_item_is_cmd() {
match self.get_selected_item_type() {
SelectedItem::UpDir => self.enter_parent_directory(),
SelectedItem::Directory => self.go_to_selected_dir(),
SelectedItem::Command => {
if self.selected_commands.is_empty() {
if let Some(node) = self.get_selected_node() {
self.selected_commands.push(node);
@ -689,8 +713,8 @@ impl AppState {
let prompt = ConfirmPrompt::new(&cmd_names[..]);
self.focus = Focus::ConfirmationPrompt(Float::new(Box::new(prompt), 40, 40));
} else {
self.go_to_selected_dir();
}
SelectedItem::None => {}
}
}
@ -724,10 +748,13 @@ impl AppState {
}
fn refresh_tab(&mut self) {
self.visit_stack = vec![self.tabs[self.current_tab.selected().unwrap()]
self.visit_stack = vec![(
self.tabs[self.current_tab.selected().unwrap()]
.tree
.root()
.id()];
.id(),
0usize,
)];
self.selection.select(Some(0));
self.update_items();
}