354 lines
11 KiB
Rust
354 lines
11 KiB
Rust
use crate::{Editor, Event};
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use crate::{MultiBuffer, ToPoint as _};
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use anyhow::Result;
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use gpui::{
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elements::*, AppContext, Entity, ModelContext, ModelHandle, MutableAppContext, RenderContext,
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Subscription, Task, View, ViewContext, ViewHandle, WeakModelHandle,
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};
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use language::{Diagnostic, File as _};
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use postage::watch;
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use project::{ProjectPath, Worktree};
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use std::fmt::Write;
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use std::path::Path;
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use text::{Point, Selection};
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use workspace::{
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EntryOpener, ItemHandle, ItemView, ItemViewHandle, Settings, StatusItemView, WeakItemHandle,
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};
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pub struct BufferOpener;
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#[derive(Clone)]
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pub struct BufferItemHandle(pub ModelHandle<MultiBuffer>);
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#[derive(Clone)]
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struct WeakBufferItemHandle(WeakModelHandle<MultiBuffer>);
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impl EntryOpener for BufferOpener {
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fn open(
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&self,
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worktree: &mut Worktree,
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project_path: ProjectPath,
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cx: &mut ModelContext<Worktree>,
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) -> Option<Task<Result<Box<dyn ItemHandle>>>> {
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let buffer = worktree.open_buffer(project_path.path, cx);
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let task = cx.spawn(|_, mut cx| async move {
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let buffer = buffer.await?;
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let buffer = cx.add_model(|cx| MultiBuffer::singleton(buffer, cx));
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Ok(Box::new(BufferItemHandle(buffer)) as Box<dyn ItemHandle>)
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});
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Some(task)
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}
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}
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impl ItemHandle for BufferItemHandle {
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fn add_view(
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&self,
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window_id: usize,
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settings: watch::Receiver<Settings>,
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cx: &mut MutableAppContext,
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) -> Box<dyn ItemViewHandle> {
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let buffer = self.0.downgrade();
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Box::new(cx.add_view(window_id, |cx| {
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Editor::for_buffer(
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self.0.clone(),
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crate::settings_builder(buffer, settings),
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cx,
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)
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}))
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}
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fn boxed_clone(&self) -> Box<dyn ItemHandle> {
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Box::new(self.clone())
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}
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fn downgrade(&self) -> Box<dyn workspace::WeakItemHandle> {
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Box::new(WeakBufferItemHandle(self.0.downgrade()))
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}
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fn project_path(&self, cx: &AppContext) -> Option<ProjectPath> {
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self.0.read(cx).file(cx).map(|f| ProjectPath {
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worktree_id: f.worktree_id(),
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path: f.path().clone(),
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})
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}
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}
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impl WeakItemHandle for WeakBufferItemHandle {
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fn upgrade(&self, cx: &AppContext) -> Option<Box<dyn ItemHandle>> {
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self.0
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.upgrade(cx)
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.map(|buffer| Box::new(BufferItemHandle(buffer)) as Box<dyn ItemHandle>)
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}
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}
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impl ItemView for Editor {
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fn should_activate_item_on_event(event: &Event) -> bool {
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matches!(event, Event::Activate)
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}
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fn should_close_item_on_event(event: &Event) -> bool {
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matches!(event, Event::Closed)
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}
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fn should_update_tab_on_event(event: &Event) -> bool {
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matches!(
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event,
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Event::Saved | Event::Dirtied | Event::FileHandleChanged
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)
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}
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fn title(&self, cx: &AppContext) -> String {
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let filename = self
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.buffer()
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.read(cx)
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.file(cx)
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.and_then(|file| file.file_name());
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if let Some(name) = filename {
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name.to_string_lossy().into()
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} else {
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"untitled".into()
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}
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}
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fn project_path(&self, cx: &AppContext) -> Option<ProjectPath> {
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self.buffer().read(cx).file(cx).map(|file| ProjectPath {
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worktree_id: file.worktree_id(),
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path: file.path().clone(),
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})
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}
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fn clone_on_split(&self, cx: &mut ViewContext<Self>) -> Option<Self>
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where
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Self: Sized,
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{
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Some(self.clone(cx))
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}
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fn save(&mut self, cx: &mut ViewContext<Self>) -> Result<Task<Result<()>>> {
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let save = self.buffer().update(cx, |b, cx| b.save(cx))?;
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Ok(cx.spawn(|_, _| async move {
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save.await?;
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Ok(())
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}))
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}
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fn save_as(
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&mut self,
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worktree: ModelHandle<Worktree>,
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path: &Path,
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cx: &mut ViewContext<Self>,
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) -> Task<Result<()>> {
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let buffer = self
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.buffer()
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.read(cx)
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.as_singleton()
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.expect("cannot call save_as on an excerpt list")
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.clone();
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buffer.update(cx, |buffer, cx| {
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let handle = cx.handle();
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let text = buffer.as_rope().clone();
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let version = buffer.version();
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let save_as = worktree.update(cx, |worktree, cx| {
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worktree
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.as_local_mut()
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.unwrap()
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.save_buffer_as(handle, path, text, cx)
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});
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cx.spawn(|buffer, mut cx| async move {
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save_as.await.map(|new_file| {
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let (language, language_server) = worktree.update(&mut cx, |worktree, cx| {
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let worktree = worktree.as_local_mut().unwrap();
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let language = worktree
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.languages()
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.select_language(new_file.full_path())
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.cloned();
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let language_server = language
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.as_ref()
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.and_then(|language| worktree.ensure_language_server(language, cx));
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(language, language_server.clone())
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});
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buffer.update(&mut cx, |buffer, cx| {
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buffer.did_save(version, new_file.mtime, Some(Box::new(new_file)), cx);
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buffer.set_language(language, language_server, cx);
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});
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})
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})
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})
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}
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fn is_dirty(&self, cx: &AppContext) -> bool {
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self.buffer().read(cx).is_dirty(cx)
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}
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fn has_conflict(&self, cx: &AppContext) -> bool {
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self.buffer().read(cx).has_conflict(cx)
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}
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}
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pub struct CursorPosition {
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position: Option<Point>,
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selected_count: usize,
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settings: watch::Receiver<Settings>,
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_observe_active_editor: Option<Subscription>,
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}
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impl CursorPosition {
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pub fn new(settings: watch::Receiver<Settings>) -> Self {
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Self {
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position: None,
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selected_count: 0,
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settings,
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_observe_active_editor: None,
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}
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}
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fn update_position(&mut self, editor: ViewHandle<Editor>, cx: &mut ViewContext<Self>) {
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let editor = editor.read(cx);
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let buffer = editor.buffer().read(cx).snapshot(cx);
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self.selected_count = 0;
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let mut last_selection: Option<Selection<usize>> = None;
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for selection in editor.local_selections::<usize>(cx) {
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self.selected_count += selection.end - selection.start;
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if last_selection
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.as_ref()
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.map_or(true, |last_selection| selection.id > last_selection.id)
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{
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last_selection = Some(selection);
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}
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}
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self.position = last_selection.map(|s| s.head().to_point(&buffer));
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cx.notify();
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}
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}
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impl Entity for CursorPosition {
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type Event = ();
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}
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impl View for CursorPosition {
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fn ui_name() -> &'static str {
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"CursorPosition"
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}
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fn render(&mut self, _: &mut RenderContext<Self>) -> ElementBox {
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if let Some(position) = self.position {
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let theme = &self.settings.borrow().theme.workspace.status_bar;
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let mut text = format!("{},{}", position.row + 1, position.column + 1);
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if self.selected_count > 0 {
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write!(text, " ({} selected)", self.selected_count).unwrap();
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}
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Label::new(text, theme.cursor_position.clone()).boxed()
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} else {
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Empty::new().boxed()
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}
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}
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}
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impl StatusItemView for CursorPosition {
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fn set_active_pane_item(
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&mut self,
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active_pane_item: Option<&dyn ItemViewHandle>,
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cx: &mut ViewContext<Self>,
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) {
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if let Some(editor) = active_pane_item.and_then(|item| item.to_any().downcast::<Editor>()) {
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self._observe_active_editor = Some(cx.observe(&editor, Self::update_position));
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self.update_position(editor, cx);
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} else {
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self.position = None;
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self._observe_active_editor = None;
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}
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cx.notify();
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}
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}
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pub struct DiagnosticMessage {
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settings: watch::Receiver<Settings>,
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diagnostic: Option<Diagnostic>,
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_observe_active_editor: Option<Subscription>,
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}
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impl DiagnosticMessage {
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pub fn new(settings: watch::Receiver<Settings>) -> Self {
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Self {
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diagnostic: None,
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settings,
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_observe_active_editor: None,
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}
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}
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fn update(&mut self, editor: ViewHandle<Editor>, cx: &mut ViewContext<Self>) {
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let editor = editor.read(cx);
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let buffer = editor.buffer().read(cx);
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let cursor_position = editor.newest_selection::<usize>(&buffer.read(cx)).head();
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let new_diagnostic = buffer
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.read(cx)
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.diagnostics_in_range::<_, usize>(cursor_position..cursor_position)
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.filter(|entry| !entry.range.is_empty())
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.min_by_key(|entry| (entry.diagnostic.severity, entry.range.len()))
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.map(|entry| entry.diagnostic);
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if new_diagnostic != self.diagnostic {
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self.diagnostic = new_diagnostic;
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cx.notify();
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}
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}
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}
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impl Entity for DiagnosticMessage {
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type Event = ();
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}
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impl View for DiagnosticMessage {
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fn ui_name() -> &'static str {
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"DiagnosticMessage"
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}
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fn render(&mut self, _: &mut RenderContext<Self>) -> ElementBox {
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if let Some(diagnostic) = &self.diagnostic {
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let theme = &self.settings.borrow().theme.workspace.status_bar;
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Flex::row()
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.with_child(
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Svg::new("icons/warning.svg")
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.with_color(theme.diagnostic_icon_color)
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.constrained()
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.with_height(theme.diagnostic_icon_size)
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.contained()
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.with_margin_right(theme.diagnostic_icon_spacing)
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.boxed(),
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)
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.with_child(
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Label::new(
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diagnostic.message.lines().next().unwrap().to_string(),
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theme.diagnostic_message.clone(),
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)
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.boxed(),
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)
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.boxed()
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} else {
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Empty::new().boxed()
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}
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}
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}
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impl StatusItemView for DiagnosticMessage {
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fn set_active_pane_item(
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&mut self,
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active_pane_item: Option<&dyn ItemViewHandle>,
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cx: &mut ViewContext<Self>,
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) {
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if let Some(editor) = active_pane_item.and_then(|item| item.to_any().downcast::<Editor>()) {
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self._observe_active_editor = Some(cx.observe(&editor, Self::update));
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self.update(editor, cx);
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} else {
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self.diagnostic = Default::default();
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self._observe_active_editor = None;
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}
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cx.notify();
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}
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}
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