mod active_buffer_language; pub use active_buffer_language::ActiveBufferLanguage;use anyhow::Context as _;use editor::Editor;use file_finder::file_finder_settings::FileFinderSettings;use file_icons::FileIcons;use fuzzy::{StringMatch, StringMatchCandidate, match_strings};use gpui::{ App, Context, DismissEvent, Entity, EventEmitter, FocusHandle, Focusable, ParentElement, Render, Styled, WeakEntity, Window, actions,};use language::{Buffer, LanguageMatcher, LanguageName, LanguageRegistry};use picker::{Picker, PickerDelegate};use project::Project;use settings::Settings;use std::{ops::Not as _, path::Path, sync::Arc};use ui::{HighlightedLabel, ListItem, ListItemSpacing, prelude::*};use util::ResultExt;use workspace::{ModalView, Workspace}; actions!(language_selector, [Toggle]); pub fn init(cx: &mut App) { cx.observe_new(LanguageSelector::register).detach();} pub struct LanguageSelector { picker: Entity<Picker<LanguageSelectorDelegate>>,} impl LanguageSelector { fn register( workspace: &mut Workspace, _window: Option<&mut Window>, _: &mut Context<Workspace>, ) { workspace.register_action(move |workspace, _: &Toggle, window, cx| { Self::toggle(workspace, window, cx); }); } fn toggle( workspace: &mut Workspace, window: &mut Window, cx: &mut Context<Workspace>, ) -> Option<()> { let registry = workspace.app_state().languages.clone(); let (_, buffer, _) = workspace .active_item(cx)? .act_as::<Editor>(cx)? .read(cx) .active_excerpt(cx)?; let project = workspace.project().clone(); workspace.toggle_modal(window, cx, move |window, cx| { LanguageSelector::new(buffer, project, registry, window, cx) }); Some(()) } fn new( buffer: Entity<Buffer>, project: Entity<Project>, language_registry: Arc<LanguageRegistry>, window: &mut Window, cx: &mut Context<Self>, ) -> Self { let delegate = LanguageSelectorDelegate::new( cx.entity().downgrade(), buffer, project, language_registry, ); let picker = cx.new(|cx| Picker::uniform_list(delegate, window, cx)); Self { picker } }} impl Render for LanguageSelector { fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement { v_flex().w(rems(34.)).child(self.picker.clone()) }} impl Focusable for LanguageSelector { fn focus_handle(&self, cx: &App) -> FocusHandle { self.picker.focus_handle(cx) }} impl EventEmitter<DismissEvent> for LanguageSelector {}impl ModalView for LanguageSelector {} pub struct LanguageSelectorDelegate { language_selector: WeakEntity<LanguageSelector>, buffer: Entity<Buffer>, project: Entity<Project>, language_registry: Arc<LanguageRegistry>, candidates: Vec<StringMatchCandidate>, matches: Vec<StringMatch>, selected_index: usize,} impl LanguageSelectorDelegate { fn new( language_selector: WeakEntity<LanguageSelector>, buffer: Entity<Buffer>, project: Entity<Project>, language_registry: Arc<LanguageRegistry>, ) -> Self { let candidates = language_registry .language_names() .into_iter() .filter_map(|name| { language_registry .available_language_for_name(&name)? .hidden() .not() .then_some(name) }) .enumerate() .map(|(candidate_id, name)| StringMatchCandidate::new(candidate_id, &name)) .collect::<Vec<_>>(); Self { language_selector, buffer, project, language_registry, candidates, matches: vec![], selected_index: 0, } } fn language_data_for_match(&self, mat: &StringMatch, cx: &App) -> (String, Option<Icon>) { let mut label = mat.string.clone(); let buffer_language = self.buffer.read(cx).language(); let need_icon = FileFinderSettings::get_global(cx).file_icons; if let Some(buffer_language) = buffer_language .filter(|buffer_language| buffer_language.name().as_ref() == mat.string.as_str()) { label.push_str(" (current)"); let icon = need_icon .then(|| self.language_icon(&buffer_language.config().matcher, cx)) .flatten(); (label, icon) } else { let icon = need_icon .then(|| { let language_name = LanguageName::new(mat.string.as_str()); self.language_registry .available_language_for_name(language_name.as_ref()) .and_then(|available_language| { self.language_icon(available_language.matcher(), cx) }) }) .flatten(); (label, icon) } } fn language_icon(&self, matcher: &LanguageMatcher, cx: &App) -> Option<Icon> { matcher .path_suffixes .iter() .find_map(|extension| FileIcons::get_icon(Path::new(extension), cx)) .map(Icon::from_path) .map(|icon| icon.color(Color::Muted)) }} impl PickerDelegate for LanguageSelectorDelegate { type ListItem = ListItem; fn placeholder_text(&self, _window: &mut Window, _cx: &mut App) -> Arc<str> { "Select a language…".into() } fn match_count(&self) -> usize { self.matches.len() } fn confirm(&mut self, _: bool, window: &mut Window, cx: &mut Context<Picker<Self>>) { if let Some(mat) = self.matches.get(self.selected_index) { let language_name = &self.candidates[mat.candidate_id].string; let language = self.language_registry.language_for_name(language_name); let project = self.project.downgrade(); let buffer = self.buffer.downgrade(); cx.spawn_in(window, async move |_, cx| { let language = language.await?; let project = project.upgrade().context("project was dropped")?; let buffer = buffer.upgrade().context("buffer was dropped")?; project.update(cx, |project, cx| { project.set_language_for_buffer(&buffer, language, cx); }) }) .detach_and_log_err(cx); } self.dismissed(window, cx); } fn dismissed(&mut self, _: &mut Window, cx: &mut Context<Picker<Self>>) { self.language_selector .update(cx, |_, cx| cx.emit(DismissEvent)) .log_err(); } fn selected_index(&self) -> usize { self.selected_index } fn set_selected_index( &mut self, ix: usize, _window: &mut Window, _: &mut Context<Picker<Self>>, ) { self.selected_index = ix; } fn update_matches( &mut self, query: String, window: &mut Window, cx: &mut Context<Picker<Self>>, ) -> gpui::Task<()> { let background = cx.background_executor().clone(); let candidates = self.candidates.clone(); cx.spawn_in(window, async move |this, cx| { let matches = if query.is_empty() { candidates .into_iter() .enumerate() .map(|(index, candidate)| StringMatch { candidate_id: index, string: candidate.string, positions: Vec::new(), score: 0.0, }) .collect() } else { match_strings( &candidates, &query, false, true, 100, &Default::default(), background, ) .await }; this.update(cx, |this, cx| { let delegate = &mut this.delegate; delegate.matches = matches; delegate.selected_index = delegate .selected_index .min(delegate.matches.len().saturating_sub(1)); cx.notify(); }) .log_err(); }) } fn render_match( &self, ix: usize, selected: bool, _: &mut Window, cx: &mut Context<Picker<Self>>, ) -> Option<Self::ListItem> { let mat = &self.matches[ix]; let (label, language_icon) = self.language_data_for_match(mat, cx); Some( ListItem::new(ix) .inset(true) .spacing(ListItemSpacing::Sparse) .toggle_state(selected) .start_slot::<Icon>(language_icon) .child(HighlightedLabel::new(label, mat.positions.clone())), ) }}
mod active_buffer_language;
pub use active_buffer_language::ActiveBufferLanguage;
use anyhow::Context as _;
use editor::Editor;
use file_finder::file_finder_settings::FileFinderSettings;
use file_icons::FileIcons;
use fuzzy::{StringMatch, StringMatchCandidate, match_strings};
use gpui::{
App, Context, DismissEvent, Entity, EventEmitter, FocusHandle, Focusable, ParentElement,
Render, Styled, WeakEntity, Window, actions,
};
use language::{Buffer, LanguageMatcher, LanguageName, LanguageRegistry};
use picker::{Picker, PickerDelegate};
use project::Project;
use settings::Settings;
use std::{ops::Not as _, path::Path, sync::Arc};
use ui::{HighlightedLabel, ListItem, ListItemSpacing, prelude::*};
use util::ResultExt;
use workspace::{ModalView, Workspace};
actions!(language_selector, [Toggle]);
pub fn init(cx: &mut App) {
cx.observe_new(LanguageSelector::register).detach();
}
pub struct LanguageSelector {
picker: Entity<Picker<LanguageSelectorDelegate>>,
}
impl LanguageSelector {
fn register(
workspace: &mut Workspace,
_window: Option<&mut Window>,
_: &mut Context<Workspace>,
) {
workspace.register_action(move |workspace, _: &Toggle, window, cx| {
Self::toggle(workspace, window, cx);
});
}
fn toggle(
workspace: &mut Workspace,
window: &mut Window,
cx: &mut Context<Workspace>,
) -> Option<()> {
let registry = workspace.app_state().languages.clone();
let (_, buffer, _) = workspace
.active_item(cx)?
.act_as::<Editor>(cx)?
.read(cx)
.active_excerpt(cx)?;
let project = workspace.project().clone();
workspace.toggle_modal(window, cx, move |window, cx| {
LanguageSelector::new(buffer, project, registry, window, cx)
});
Some(())
}
fn new(
buffer: Entity<Buffer>,
project: Entity<Project>,
language_registry: Arc<LanguageRegistry>,
window: &mut Window,
cx: &mut Context<Self>,
) -> Self {
let delegate = LanguageSelectorDelegate::new(
cx.entity().downgrade(),
buffer,
project,
language_registry,
);
let picker = cx.new(|cx| Picker::uniform_list(delegate, window, cx));
Self { picker }
}
}
impl Render for LanguageSelector {
fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
v_flex().w(rems(34.)).child(self.picker.clone())
}
}
impl Focusable for LanguageSelector {
fn focus_handle(&self, cx: &App) -> FocusHandle {
self.picker.focus_handle(cx)
}
}
impl EventEmitter<DismissEvent> for LanguageSelector {}
impl ModalView for LanguageSelector {}
pub struct LanguageSelectorDelegate {
language_selector: WeakEntity<LanguageSelector>,
buffer: Entity<Buffer>,
project: Entity<Project>,
language_registry: Arc<LanguageRegistry>,
candidates: Vec<StringMatchCandidate>,
matches: Vec<StringMatch>,
selected_index: usize,
}
impl LanguageSelectorDelegate {
fn new(
language_selector: WeakEntity<LanguageSelector>,
buffer: Entity<Buffer>,
project: Entity<Project>,
language_registry: Arc<LanguageRegistry>,
) -> Self {
let candidates = language_registry
.language_names()
.into_iter()
.filter_map(|name| {
language_registry
.available_language_for_name(&name)?
.hidden()
.not()
.then_some(name)
})
.enumerate()
.map(|(candidate_id, name)| StringMatchCandidate::new(candidate_id, &name))
.collect::<Vec<_>>();
Self {
language_selector,
buffer,
project,
language_registry,
candidates,
matches: vec![],
selected_index: 0,
}
}
fn language_data_for_match(&self, mat: &StringMatch, cx: &App) -> (String, Option<Icon>) {
let mut label = mat.string.clone();
let buffer_language = self.buffer.read(cx).language();
let need_icon = FileFinderSettings::get_global(cx).file_icons;
if let Some(buffer_language) = buffer_language
.filter(|buffer_language| buffer_language.name().as_ref() == mat.string.as_str())
{
label.push_str(" (current)");
let icon = need_icon
.then(|| self.language_icon(&buffer_language.config().matcher, cx))
.flatten();
(label, icon)
} else {
let icon = need_icon
.then(|| {
let language_name = LanguageName::new(mat.string.as_str());
self.language_registry
.available_language_for_name(language_name.as_ref())
.and_then(|available_language| {
self.language_icon(available_language.matcher(), cx)
})
})
.flatten();
(label, icon)
}
}
fn language_icon(&self, matcher: &LanguageMatcher, cx: &App) -> Option<Icon> {
matcher
.path_suffixes
.iter()
.find_map(|extension| FileIcons::get_icon(Path::new(extension), cx))
.map(Icon::from_path)
.map(|icon| icon.color(Color::Muted))
}
}
impl PickerDelegate for LanguageSelectorDelegate {
type ListItem = ListItem;
fn placeholder_text(&self, _window: &mut Window, _cx: &mut App) -> Arc<str> {
"Select a language…".into()
}
fn match_count(&self) -> usize {
self.matches.len()
}
fn confirm(&mut self, _: bool, window: &mut Window, cx: &mut Context<Picker<Self>>) {
if let Some(mat) = self.matches.get(self.selected_index) {
let language_name = &self.candidates[mat.candidate_id].string;
let language = self.language_registry.language_for_name(language_name);
let project = self.project.downgrade();
let buffer = self.buffer.downgrade();
cx.spawn_in(window, async move |_, cx| {
let language = language.await?;
let project = project.upgrade().context("project was dropped")?;
let buffer = buffer.upgrade().context("buffer was dropped")?;
project.update(cx, |project, cx| {
project.set_language_for_buffer(&buffer, language, cx);
})
})
.detach_and_log_err(cx);
}
self.dismissed(window, cx);
}
fn dismissed(&mut self, _: &mut Window, cx: &mut Context<Picker<Self>>) {
self.language_selector
.update(cx, |_, cx| cx.emit(DismissEvent))
.log_err();
}
fn selected_index(&self) -> usize {
self.selected_index
}
fn set_selected_index(
&mut self,
ix: usize,
_window: &mut Window,
_: &mut Context<Picker<Self>>,
) {
self.selected_index = ix;
}
fn update_matches(
&mut self,
query: String,
window: &mut Window,
cx: &mut Context<Picker<Self>>,
) -> gpui::Task<()> {
let background = cx.background_executor().clone();
let candidates = self.candidates.clone();
cx.spawn_in(window, async move |this, cx| {
let matches = if query.is_empty() {
candidates
.into_iter()
.enumerate()
.map(|(index, candidate)| StringMatch {
candidate_id: index,
string: candidate.string,
positions: Vec::new(),
score: 0.0,
})
.collect()
} else {
match_strings(
&candidates,
&query,
false,
true,
100,
&Default::default(),
background,
)
.await
};
this.update(cx, |this, cx| {
let delegate = &mut this.delegate;
delegate.matches = matches;
delegate.selected_index = delegate
.selected_index
.min(delegate.matches.len().saturating_sub(1));
cx.notify();
})
.log_err();
})
}
fn render_match(
&self,
ix: usize,
selected: bool,
_: &mut Window,
cx: &mut Context<Picker<Self>>,
) -> Option<Self::ListItem> {
let mat = &self.matches[ix];
let (label, language_icon) = self.language_data_for_match(mat, cx);
Some(
ListItem::new(ix)
.inset(true)
.spacing(ListItemSpacing::Sparse)
.toggle_state(selected)
.start_slot::<Icon>(language_icon)
.child(HighlightedLabel::new(label, mat.positions.clone())),
)
}
}