ZIm/crates/file_finder/src/new_path_prompt.rs
tidely bc99a86bb7
Reduce allocations (#30693)
Removes a unnecessary string conversion and some clones

Release Notes:

- N/A
2025-05-14 18:29:28 +02:00

526 lines
17 KiB
Rust

use futures::channel::oneshot;
use fuzzy::PathMatch;
use gpui::{Entity, HighlightStyle, StyledText};
use picker::{Picker, PickerDelegate};
use project::{Entry, PathMatchCandidateSet, Project, ProjectPath, WorktreeId};
use std::{
path::{Path, PathBuf},
sync::{
Arc,
atomic::{self, AtomicBool},
},
};
use ui::{Context, ListItem, Window};
use ui::{LabelLike, ListItemSpacing, highlight_ranges, prelude::*};
use util::ResultExt;
use workspace::Workspace;
pub(crate) struct NewPathPrompt;
#[derive(Debug, Clone)]
struct Match {
path_match: Option<PathMatch>,
suffix: Option<String>,
}
impl Match {
fn entry<'a>(&'a self, project: &'a Project, cx: &'a App) -> Option<&'a Entry> {
if let Some(suffix) = &self.suffix {
let (worktree, path) = if let Some(path_match) = &self.path_match {
(
project.worktree_for_id(WorktreeId::from_usize(path_match.worktree_id), cx),
path_match.path.join(suffix),
)
} else {
(project.worktrees(cx).next(), PathBuf::from(suffix))
};
worktree.and_then(|worktree| worktree.read(cx).entry_for_path(path))
} else if let Some(path_match) = &self.path_match {
let worktree =
project.worktree_for_id(WorktreeId::from_usize(path_match.worktree_id), cx)?;
worktree.read(cx).entry_for_path(path_match.path.as_ref())
} else {
None
}
}
fn is_dir(&self, project: &Project, cx: &App) -> bool {
self.entry(project, cx).is_some_and(|e| e.is_dir())
|| self.suffix.as_ref().is_some_and(|s| s.ends_with('/'))
}
fn relative_path(&self) -> String {
if let Some(path_match) = &self.path_match {
if let Some(suffix) = &self.suffix {
format!(
"{}/{}",
path_match.path.to_string_lossy(),
suffix.trim_end_matches('/')
)
} else {
path_match.path.to_string_lossy().to_string()
}
} else if let Some(suffix) = &self.suffix {
suffix.trim_end_matches('/').to_string()
} else {
"".to_string()
}
}
fn project_path(&self, project: &Project, cx: &App) -> Option<ProjectPath> {
let worktree_id = if let Some(path_match) = &self.path_match {
WorktreeId::from_usize(path_match.worktree_id)
} else if let Some(worktree) = project.visible_worktrees(cx).find(|worktree| {
worktree
.read(cx)
.root_entry()
.is_some_and(|entry| entry.is_dir())
}) {
worktree.read(cx).id()
} else {
// todo(): we should find_or_create a workspace.
return None;
};
let path = PathBuf::from(self.relative_path());
Some(ProjectPath {
worktree_id,
path: Arc::from(path),
})
}
fn existing_prefix(&self, project: &Project, cx: &App) -> Option<PathBuf> {
let worktree = project.worktrees(cx).next()?.read(cx);
let mut prefix = PathBuf::new();
let parts = self.suffix.as_ref()?.split('/');
for part in parts {
if worktree.entry_for_path(prefix.join(&part)).is_none() {
return Some(prefix);
}
prefix = prefix.join(part);
}
None
}
fn styled_text(&self, project: &Project, window: &Window, cx: &App) -> StyledText {
let mut text = "./".to_string();
let mut highlights = Vec::new();
let mut offset = text.len();
let separator = '/';
let dir_indicator = "[…]";
if let Some(path_match) = &self.path_match {
text.push_str(&path_match.path.to_string_lossy());
let mut whole_path = PathBuf::from(path_match.path_prefix.to_string());
whole_path = whole_path.join(path_match.path.clone());
for (range, style) in highlight_ranges(
&whole_path.to_string_lossy(),
&path_match.positions,
gpui::HighlightStyle::color(Color::Accent.color(cx)),
) {
highlights.push((range.start + offset..range.end + offset, style))
}
text.push(separator);
offset = text.len();
if let Some(suffix) = &self.suffix {
text.push_str(suffix);
let entry = self.entry(project, cx);
let color = if let Some(entry) = entry {
if entry.is_dir() {
Color::Accent
} else {
Color::Conflict
}
} else {
Color::Created
};
highlights.push((
offset..offset + suffix.len(),
HighlightStyle::color(color.color(cx)),
));
offset += suffix.len();
if entry.is_some_and(|e| e.is_dir()) {
text.push(separator);
offset += separator.len_utf8();
text.push_str(dir_indicator);
highlights.push((
offset..offset + dir_indicator.len(),
HighlightStyle::color(Color::Muted.color(cx)),
));
}
} else {
text.push_str(dir_indicator);
highlights.push((
offset..offset + dir_indicator.len(),
HighlightStyle::color(Color::Muted.color(cx)),
))
}
} else if let Some(suffix) = &self.suffix {
text.push_str(suffix);
let existing_prefix_len = self
.existing_prefix(project, cx)
.map(|prefix| prefix.to_string_lossy().len())
.unwrap_or(0);
if existing_prefix_len > 0 {
highlights.push((
offset..offset + existing_prefix_len,
HighlightStyle::color(Color::Accent.color(cx)),
));
}
highlights.push((
offset + existing_prefix_len..offset + suffix.len(),
HighlightStyle::color(if self.entry(project, cx).is_some() {
Color::Conflict.color(cx)
} else {
Color::Created.color(cx)
}),
));
offset += suffix.len();
if suffix.ends_with('/') {
text.push_str(dir_indicator);
highlights.push((
offset..offset + dir_indicator.len(),
HighlightStyle::color(Color::Muted.color(cx)),
));
}
}
StyledText::new(text).with_default_highlights(&window.text_style().clone(), highlights)
}
}
pub struct NewPathDelegate {
project: Entity<Project>,
tx: Option<oneshot::Sender<Option<ProjectPath>>>,
selected_index: usize,
matches: Vec<Match>,
last_selected_dir: Option<String>,
cancel_flag: Arc<AtomicBool>,
should_dismiss: bool,
}
impl NewPathPrompt {
pub(crate) fn register(
workspace: &mut Workspace,
_window: Option<&mut Window>,
_cx: &mut Context<Workspace>,
) {
workspace.set_prompt_for_new_path(Box::new(|workspace, window, cx| {
let (tx, rx) = futures::channel::oneshot::channel();
Self::prompt_for_new_path(workspace, tx, window, cx);
rx
}));
}
fn prompt_for_new_path(
workspace: &mut Workspace,
tx: oneshot::Sender<Option<ProjectPath>>,
window: &mut Window,
cx: &mut Context<Workspace>,
) {
let project = workspace.project().clone();
workspace.toggle_modal(window, cx, |window, cx| {
let delegate = NewPathDelegate {
project,
tx: Some(tx),
selected_index: 0,
matches: vec![],
cancel_flag: Arc::new(AtomicBool::new(false)),
last_selected_dir: None,
should_dismiss: true,
};
Picker::uniform_list(delegate, window, cx).width(rems(34.))
});
}
}
impl PickerDelegate for NewPathDelegate {
type ListItem = ui::ListItem;
fn match_count(&self) -> usize {
self.matches.len()
}
fn selected_index(&self) -> usize {
self.selected_index
}
fn set_selected_index(
&mut self,
ix: usize,
_: &mut Window,
cx: &mut Context<picker::Picker<Self>>,
) {
self.selected_index = ix;
cx.notify();
}
fn update_matches(
&mut self,
query: String,
window: &mut Window,
cx: &mut Context<picker::Picker<Self>>,
) -> gpui::Task<()> {
let query = query
.trim()
.trim_start_matches("./")
.trim_start_matches('/');
let (dir, suffix) = if let Some(index) = query.rfind('/') {
let suffix = if index + 1 < query.len() {
Some(query[index + 1..].to_string())
} else {
None
};
(query[0..index].to_string(), suffix)
} else {
(query.to_string(), None)
};
let worktrees = self
.project
.read(cx)
.visible_worktrees(cx)
.collect::<Vec<_>>();
let include_root_name = worktrees.len() > 1;
let candidate_sets = worktrees
.into_iter()
.map(|worktree| {
let worktree = worktree.read(cx);
PathMatchCandidateSet {
snapshot: worktree.snapshot(),
include_ignored: worktree
.root_entry()
.map_or(false, |entry| entry.is_ignored),
include_root_name,
candidates: project::Candidates::Directories,
}
})
.collect::<Vec<_>>();
self.cancel_flag.store(true, atomic::Ordering::Relaxed);
self.cancel_flag = Arc::new(AtomicBool::new(false));
let cancel_flag = self.cancel_flag.clone();
let query = query.to_string();
let prefix = dir.clone();
cx.spawn_in(window, async move |picker, cx| {
let matches = fuzzy::match_path_sets(
candidate_sets.as_slice(),
&dir,
None,
false,
100,
&cancel_flag,
cx.background_executor().clone(),
)
.await;
let did_cancel = cancel_flag.load(atomic::Ordering::Relaxed);
if did_cancel {
return;
}
picker
.update(cx, |picker, cx| {
picker
.delegate
.set_search_matches(query, prefix, suffix, matches, cx)
})
.log_err();
})
}
fn confirm_completion(
&mut self,
_: String,
window: &mut Window,
cx: &mut Context<Picker<Self>>,
) -> Option<String> {
self.confirm_update_query(window, cx)
}
fn confirm_update_query(
&mut self,
_: &mut Window,
cx: &mut Context<Picker<Self>>,
) -> Option<String> {
let m = self.matches.get(self.selected_index)?;
if m.is_dir(self.project.read(cx), cx) {
let path = m.relative_path();
let result = format!("{}/", path);
self.last_selected_dir = Some(path);
Some(result)
} else {
None
}
}
fn confirm(&mut self, _: bool, window: &mut Window, cx: &mut Context<picker::Picker<Self>>) {
let Some(m) = self.matches.get(self.selected_index) else {
return;
};
let exists = m.entry(self.project.read(cx), cx).is_some();
if exists {
self.should_dismiss = false;
let answer = window.prompt(
gpui::PromptLevel::Critical,
&format!("{} already exists. Do you want to replace it?", m.relative_path()),
Some(
"A file or folder with the same name already exists. Replacing it will overwrite its current contents.",
),
&["Replace", "Cancel"],
cx);
let m = m.clone();
cx.spawn_in(window, async move |picker, cx| {
let answer = answer.await.ok();
picker
.update(cx, |picker, cx| {
picker.delegate.should_dismiss = true;
if answer != Some(0) {
return;
}
if let Some(path) = m.project_path(picker.delegate.project.read(cx), cx) {
if let Some(tx) = picker.delegate.tx.take() {
tx.send(Some(path)).ok();
}
}
cx.emit(gpui::DismissEvent);
})
.ok();
})
.detach();
return;
}
if let Some(path) = m.project_path(self.project.read(cx), cx) {
if let Some(tx) = self.tx.take() {
tx.send(Some(path)).ok();
}
}
cx.emit(gpui::DismissEvent);
}
fn should_dismiss(&self) -> bool {
self.should_dismiss
}
fn dismissed(&mut self, _: &mut Window, cx: &mut Context<picker::Picker<Self>>) {
if let Some(tx) = self.tx.take() {
tx.send(None).ok();
}
cx.emit(gpui::DismissEvent)
}
fn render_match(
&self,
ix: usize,
selected: bool,
window: &mut Window,
cx: &mut Context<picker::Picker<Self>>,
) -> Option<Self::ListItem> {
let m = self.matches.get(ix)?;
Some(
ListItem::new(ix)
.spacing(ListItemSpacing::Sparse)
.inset(true)
.toggle_state(selected)
.child(LabelLike::new().child(m.styled_text(self.project.read(cx), window, cx))),
)
}
fn no_matches_text(&self, _window: &mut Window, _cx: &mut App) -> Option<SharedString> {
Some("Type a path...".into())
}
fn placeholder_text(&self, _window: &mut Window, _cx: &mut App) -> Arc<str> {
Arc::from("[directory/]filename.ext")
}
}
impl NewPathDelegate {
fn set_search_matches(
&mut self,
query: String,
prefix: String,
suffix: Option<String>,
matches: Vec<PathMatch>,
cx: &mut Context<Picker<Self>>,
) {
cx.notify();
if query.is_empty() {
self.matches = self
.project
.read(cx)
.worktrees(cx)
.flat_map(|worktree| {
let worktree_id = worktree.read(cx).id();
worktree
.read(cx)
.child_entries(Path::new(""))
.filter_map(move |entry| {
entry.is_dir().then(|| Match {
path_match: Some(PathMatch {
score: 1.0,
positions: Default::default(),
worktree_id: worktree_id.to_usize(),
path: entry.path.clone(),
path_prefix: "".into(),
is_dir: entry.is_dir(),
distance_to_relative_ancestor: 0,
}),
suffix: None,
})
})
})
.collect();
return;
}
let mut directory_exists = false;
self.matches = matches
.into_iter()
.map(|m| {
if m.path.as_ref().to_string_lossy() == prefix {
directory_exists = true
}
Match {
path_match: Some(m),
suffix: suffix.clone(),
}
})
.collect();
if !directory_exists {
if suffix.is_none()
|| self
.last_selected_dir
.as_ref()
.is_some_and(|d| query.starts_with(d))
{
self.matches.insert(
0,
Match {
path_match: None,
suffix: Some(query.clone()),
},
)
} else {
self.matches.push(Match {
path_match: None,
suffix: Some(query.clone()),
})
}
}
}
}