257 lines
8.6 KiB
Rust
257 lines
8.6 KiB
Rust
use editor::{
|
|
combine_syntax_and_fuzzy_match_highlights, display_map::ToDisplayPoint, Anchor, AnchorRangeExt,
|
|
Autoscroll, DisplayPoint, Editor, ToPoint,
|
|
};
|
|
use fuzzy::StringMatch;
|
|
use gpui::{
|
|
actions, elements::*, geometry::vector::Vector2F, AppContext, Entity, MutableAppContext,
|
|
RenderContext, Task, View, ViewContext, ViewHandle,
|
|
};
|
|
use language::Outline;
|
|
use ordered_float::OrderedFloat;
|
|
use picker::{Picker, PickerDelegate};
|
|
use settings::Settings;
|
|
use std::cmp::{self, Reverse};
|
|
use workspace::Workspace;
|
|
|
|
actions!(outline, [Toggle]);
|
|
|
|
pub fn init(cx: &mut MutableAppContext) {
|
|
cx.add_action(OutlineView::toggle);
|
|
Picker::<OutlineView>::init(cx);
|
|
}
|
|
|
|
struct OutlineView {
|
|
picker: ViewHandle<Picker<Self>>,
|
|
active_editor: ViewHandle<Editor>,
|
|
outline: Outline<Anchor>,
|
|
selected_match_index: usize,
|
|
prev_scroll_position: Option<Vector2F>,
|
|
matches: Vec<StringMatch>,
|
|
last_query: String,
|
|
}
|
|
|
|
pub enum Event {
|
|
Dismissed,
|
|
}
|
|
|
|
impl Entity for OutlineView {
|
|
type Event = Event;
|
|
|
|
fn release(&mut self, cx: &mut MutableAppContext) {
|
|
self.restore_active_editor(cx);
|
|
}
|
|
}
|
|
|
|
impl View for OutlineView {
|
|
fn ui_name() -> &'static str {
|
|
"OutlineView"
|
|
}
|
|
|
|
fn render(&mut self, _: &mut RenderContext<Self>) -> ElementBox {
|
|
ChildView::new(self.picker.clone()).boxed()
|
|
}
|
|
|
|
fn on_focus(&mut self, cx: &mut ViewContext<Self>) {
|
|
cx.focus(&self.picker);
|
|
}
|
|
}
|
|
|
|
impl OutlineView {
|
|
fn new(
|
|
outline: Outline<Anchor>,
|
|
editor: ViewHandle<Editor>,
|
|
cx: &mut ViewContext<Self>,
|
|
) -> Self {
|
|
let handle = cx.weak_handle();
|
|
Self {
|
|
picker: cx.add_view(|cx| Picker::new(handle, cx).with_max_size(800., 1200.)),
|
|
last_query: Default::default(),
|
|
matches: Default::default(),
|
|
selected_match_index: 0,
|
|
prev_scroll_position: Some(editor.update(cx, |editor, cx| editor.scroll_position(cx))),
|
|
active_editor: editor,
|
|
outline,
|
|
}
|
|
}
|
|
|
|
fn toggle(workspace: &mut Workspace, _: &Toggle, cx: &mut ViewContext<Workspace>) {
|
|
if let Some(editor) = workspace
|
|
.active_item(cx)
|
|
.and_then(|item| item.downcast::<Editor>())
|
|
{
|
|
let buffer = editor
|
|
.read(cx)
|
|
.buffer()
|
|
.read(cx)
|
|
.read(cx)
|
|
.outline(Some(cx.global::<Settings>().theme.editor.syntax.as_ref()));
|
|
if let Some(outline) = buffer {
|
|
workspace.toggle_modal(cx, |cx, _| {
|
|
let view = cx.add_view(|cx| OutlineView::new(outline, editor, cx));
|
|
cx.subscribe(&view, Self::on_event).detach();
|
|
view
|
|
});
|
|
}
|
|
}
|
|
}
|
|
|
|
fn restore_active_editor(&mut self, cx: &mut MutableAppContext) {
|
|
self.active_editor.update(cx, |editor, cx| {
|
|
editor.highlight_rows(None);
|
|
if let Some(scroll_position) = self.prev_scroll_position {
|
|
editor.set_scroll_position(scroll_position, cx);
|
|
}
|
|
})
|
|
}
|
|
|
|
fn set_selected_index(&mut self, ix: usize, navigate: bool, cx: &mut ViewContext<Self>) {
|
|
self.selected_match_index = ix;
|
|
if navigate && !self.matches.is_empty() {
|
|
let selected_match = &self.matches[self.selected_match_index];
|
|
let outline_item = &self.outline.items[selected_match.candidate_id];
|
|
self.active_editor.update(cx, |active_editor, cx| {
|
|
let snapshot = active_editor.snapshot(cx).display_snapshot;
|
|
let buffer_snapshot = &snapshot.buffer_snapshot;
|
|
let start = outline_item.range.start.to_point(&buffer_snapshot);
|
|
let end = outline_item.range.end.to_point(&buffer_snapshot);
|
|
let display_rows = start.to_display_point(&snapshot).row()
|
|
..end.to_display_point(&snapshot).row() + 1;
|
|
active_editor.highlight_rows(Some(display_rows));
|
|
active_editor.request_autoscroll(Autoscroll::Center, cx);
|
|
});
|
|
}
|
|
cx.notify();
|
|
}
|
|
|
|
fn on_event(
|
|
workspace: &mut Workspace,
|
|
_: ViewHandle<Self>,
|
|
event: &Event,
|
|
cx: &mut ViewContext<Workspace>,
|
|
) {
|
|
match event {
|
|
Event::Dismissed => workspace.dismiss_modal(cx),
|
|
}
|
|
}
|
|
}
|
|
|
|
impl PickerDelegate for OutlineView {
|
|
fn match_count(&self) -> usize {
|
|
self.matches.len()
|
|
}
|
|
|
|
fn selected_index(&self) -> usize {
|
|
self.selected_match_index
|
|
}
|
|
|
|
fn set_selected_index(&mut self, ix: usize, cx: &mut ViewContext<Self>) {
|
|
self.set_selected_index(ix, true, cx);
|
|
}
|
|
|
|
fn center_selection_after_match_updates(&self) -> bool {
|
|
true
|
|
}
|
|
|
|
fn update_matches(&mut self, query: String, cx: &mut ViewContext<Self>) -> Task<()> {
|
|
let selected_index;
|
|
if query.is_empty() {
|
|
self.restore_active_editor(cx);
|
|
self.matches = self
|
|
.outline
|
|
.items
|
|
.iter()
|
|
.enumerate()
|
|
.map(|(index, _)| StringMatch {
|
|
candidate_id: index,
|
|
score: Default::default(),
|
|
positions: Default::default(),
|
|
string: Default::default(),
|
|
})
|
|
.collect();
|
|
|
|
let editor = self.active_editor.read(cx);
|
|
let buffer = editor.buffer().read(cx).read(cx);
|
|
let cursor_offset = editor
|
|
.newest_selection_with_snapshot::<usize>(&buffer)
|
|
.head();
|
|
selected_index = self
|
|
.outline
|
|
.items
|
|
.iter()
|
|
.enumerate()
|
|
.map(|(ix, item)| {
|
|
let range = item.range.to_offset(&buffer);
|
|
let distance_to_closest_endpoint = cmp::min(
|
|
(range.start as isize - cursor_offset as isize).abs() as usize,
|
|
(range.end as isize - cursor_offset as isize).abs() as usize,
|
|
);
|
|
let depth = if range.contains(&cursor_offset) {
|
|
Some(item.depth)
|
|
} else {
|
|
None
|
|
};
|
|
(ix, depth, distance_to_closest_endpoint)
|
|
})
|
|
.max_by_key(|(_, depth, distance)| (*depth, Reverse(*distance)))
|
|
.map(|(ix, _, _)| ix)
|
|
.unwrap_or(0);
|
|
} else {
|
|
self.matches = smol::block_on(self.outline.search(&query, cx.background().clone()));
|
|
selected_index = self
|
|
.matches
|
|
.iter()
|
|
.enumerate()
|
|
.max_by_key(|(_, m)| OrderedFloat(m.score))
|
|
.map(|(ix, _)| ix)
|
|
.unwrap_or(0);
|
|
}
|
|
self.last_query = query;
|
|
self.set_selected_index(selected_index, !self.last_query.is_empty(), cx);
|
|
Task::ready(())
|
|
}
|
|
|
|
fn confirm(&mut self, cx: &mut ViewContext<Self>) {
|
|
self.prev_scroll_position.take();
|
|
self.active_editor.update(cx, |active_editor, cx| {
|
|
if let Some(rows) = active_editor.highlighted_rows() {
|
|
let snapshot = active_editor.snapshot(cx).display_snapshot;
|
|
let position = DisplayPoint::new(rows.start, 0).to_point(&snapshot);
|
|
active_editor.select_ranges([position..position], Some(Autoscroll::Center), cx);
|
|
}
|
|
});
|
|
cx.emit(Event::Dismissed);
|
|
}
|
|
|
|
fn dismiss(&mut self, cx: &mut ViewContext<Self>) {
|
|
self.restore_active_editor(cx);
|
|
cx.emit(Event::Dismissed);
|
|
}
|
|
|
|
fn render_match(
|
|
&self,
|
|
ix: usize,
|
|
mouse_state: &MouseState,
|
|
selected: bool,
|
|
cx: &AppContext,
|
|
) -> ElementBox {
|
|
let settings = cx.global::<Settings>();
|
|
let string_match = &self.matches[ix];
|
|
let style = settings.theme.picker.item.style_for(mouse_state, selected);
|
|
let outline_item = &self.outline.items[string_match.candidate_id];
|
|
|
|
Text::new(outline_item.text.clone(), style.label.text.clone())
|
|
.with_soft_wrap(false)
|
|
.with_highlights(combine_syntax_and_fuzzy_match_highlights(
|
|
&outline_item.text,
|
|
style.label.text.clone().into(),
|
|
outline_item.highlight_ranges.iter().cloned(),
|
|
&string_match.positions,
|
|
))
|
|
.contained()
|
|
.with_padding_left(20. * outline_item.depth as f32)
|
|
.contained()
|
|
.with_style(style.container)
|
|
.boxed()
|
|
}
|
|
}
|