Mirrors
/
helix
mirror of https://github.com/helix-editor/helix
1
0
Fork 1
Code Issues Packages Projects Releases Wiki Activity

refactor DocumentDidChange events

Browse Source 
in the past DocumentDidChange and SelectionDidChange events were implemented in
a simplistic manner to get a simple prototype out. However, if you want to use
these events in more complex scenarios with interdependencies between the two
handlers the system fell short.

The `SelectionDidChange` event was dispatched before the DocumentDidChange (and
not at all if the selection wasn't manually set) so any handlers that wants to
track selection was not able to map their ranges yet.

The reason for this was actually the way that apply_impl was structured. The
function was slightly refactored to address these problems and enable moving
other range mappings to event handlers.
pull/9801/head
Pascal Kuthe 4 months ago
parent 26a190db62
commit 0d7857bfc4
No known key found for this signature in database
GPG Key ID: D715E8655AE166A6
3 changed files with 147 additions and 131 deletions
Show Stats Download Patch File Download Diff File

2
helix-term/src/handlers/signature_help.rs
Unescape Escape View File

@ -341,7 +341,7 @@ pub(super) fn register_hooks(handlers: &Handlers) {
let tx = handlers.signature_hints.clone();
register_hook!(move |event: &mut DocumentDidChange<'_>| {
if event.doc.config.load().lsp.auto_signature_help {
if event.doc.config.load().lsp.auto_signature_help && !event.ghost_transaction {
send_blocking(&tx, SignatureHelpEvent::ReTrigger);
}
Ok(())

266
helix-view/src/document.rs
Unescape Escape View File

@ -1189,28 +1189,12 @@ impl Document {
use helix_core::Assoc;
let old_doc = self.text().clone();
let changes = transaction.changes();
if !changes.apply(&mut self.text) {
return false;
}
let success = transaction.changes().apply(&mut self.text);
if success {
if emit_lsp_notification {
helix_event::dispatch(DocumentDidChange {
doc: self,
view: view_id,
old_text: &old_doc,
});
}
for selection in self.selections.values_mut() {
*selection = selection
.clone()
// Map through changes
.map(transaction.changes())
// Ensure all selections across all views still adhere to invariants.
.ensure_invariants(self.text.slice(..));
}
// if specified, the current selection should instead be replaced by transaction.selection
if changes.is_empty() {
if let Some(selection) = transaction.selection() {
self.selections.insert(
view_id,
@ -1221,129 +1205,155 @@ impl Document {
view: view_id,
});
}
return true;
}
self.modified_since_accessed = true;
self.modified_since_accessed = true;
self.version += 1;
for selection in self.selections.values_mut() {
*selection = selection
.clone()
// Map through changes
.map(transaction.changes())
// Ensure all selections across all views still adhere to invariants.
.ensure_invariants(self.text.slice(..));
}
if !transaction.changes().is_empty() {
self.version += 1;
// start computing the diff in parallel
if let Some(diff_handle) = &self.diff_handle {
diff_handle.update_document(self.text.clone(), false);
}
// generate revert to savepoint
if !self.savepoints.is_empty() {
let revert = transaction.invert(&old_doc);
self.savepoints
.retain_mut(|save_point| match save_point.upgrade() {
Some(savepoint) => {
let mut revert_to_savepoint = savepoint.revert.lock();
*revert_to_savepoint =
revert.clone().compose(mem::take(&mut revert_to_savepoint));
true
}
None => false,
})
}
// generate revert to savepoint
if !self.savepoints.is_empty() {
let revert = transaction.invert(&old_doc);
self.savepoints
.retain_mut(|save_point| match save_point.upgrade() {
Some(savepoint) => {
let mut revert_to_savepoint = savepoint.revert.lock();
*revert_to_savepoint =
revert.clone().compose(mem::take(&mut revert_to_savepoint));
true
}
None => false,
})
// update tree-sitter syntax tree
if let Some(syntax) = &mut self.syntax {
// TODO: no unwrap
let res = syntax.update(
old_doc.slice(..),
self.text.slice(..),
transaction.changes(),
);
if res.is_err() {
log::error!("TS parser failed, disabling TS for the current buffer: {res:?}");
self.syntax = None;
}
}
// update tree-sitter syntax tree
if let Some(syntax) = &mut self.syntax {
// TODO: no unwrap
let res = syntax.update(
old_doc.slice(..),
self.text.slice(..),
transaction.changes(),
);
if res.is_err() {
log::error!("TS parser failed, disabling TS for the current buffer: {res:?}");
self.syntax = None;
}
}
// TODO: all of that should likely just be hooks
// start computing the diff in parallel
if let Some(diff_handle) = &self.diff_handle {
diff_handle.update_document(self.text.clone(), false);
}
let changes = transaction.changes();
// map diagnostics over changes too
changes.update_positions(self.diagnostics.iter_mut().map(|diagnostic| {
let assoc = if diagnostic.starts_at_word {
Assoc::BeforeWord
} else {
Assoc::After
};
(&mut diagnostic.range.start, assoc)
}));
changes.update_positions(self.diagnostics.iter_mut().filter_map(|diagnostic| {
if diagnostic.zero_width {
// for zero width diagnostics treat the diagnostic as a point
// rather than a range
return None;
}
let assoc = if diagnostic.ends_at_word {
Assoc::AfterWord
} else {
Assoc::Before
};
Some((&mut diagnostic.range.end, assoc))
}));
self.diagnostics.retain_mut(|diagnostic| {
if diagnostic.zero_width {
diagnostic.range.end = diagnostic.range.start
} else if diagnostic.range.start >= diagnostic.range.end {
return false;
}
diagnostic.line = self.text.char_to_line(diagnostic.range.start);
true
});
// map diagnostics over changes too
changes.update_positions(self.diagnostics.iter_mut().map(|diagnostic| {
let assoc = if diagnostic.starts_at_word {
Assoc::BeforeWord
} else {
Assoc::After
};
(&mut diagnostic.range.start, assoc)
}));
changes.update_positions(self.diagnostics.iter_mut().filter_map(|diagnostic| {
if diagnostic.zero_width {
// for zero width diagnostics treat the diagnostic as a point
// rather than a range
return None;
}
let assoc = if diagnostic.ends_at_word {
Assoc::AfterWord
} else {
Assoc::Before
};
Some((&mut diagnostic.range.end, assoc))
}));
self.diagnostics.retain_mut(|diagnostic| {
if diagnostic.zero_width {
diagnostic.range.end = diagnostic.range.start
} else if diagnostic.range.start >= diagnostic.range.end {
return false;
}
diagnostic.line = self.text.char_to_line(diagnostic.range.start);
true
});
self.diagnostics.sort_unstable_by_key(|diagnostic| {
(diagnostic.range, diagnostic.severity, diagnostic.provider)
});
self.diagnostics.sort_unstable_by_key(|diagnostic| {
(diagnostic.range, diagnostic.severity, diagnostic.provider)
});
// Update the inlay hint annotations' positions, helping ensure they are displayed in the proper place
let apply_inlay_hint_changes = |annotations: &mut Vec<InlineAnnotation>| {
changes.update_positions(
annotations
.iter_mut()
.map(|annotation| (&mut annotation.char_idx, Assoc::After)),
);
};
// Update the inlay hint annotations' positions, helping ensure they are displayed in the proper place
let apply_inlay_hint_changes = |annotations: &mut Vec<InlineAnnotation>| {
changes.update_positions(
annotations
.iter_mut()
.map(|annotation| (&mut annotation.char_idx, Assoc::After)),
);
};
self.inlay_hints_oudated = true;
for text_annotation in self.inlay_hints.values_mut() {
let DocumentInlayHints {
id: _,
type_inlay_hints,
parameter_inlay_hints,
other_inlay_hints,
padding_before_inlay_hints,
padding_after_inlay_hints,
} = text_annotation;
apply_inlay_hint_changes(padding_before_inlay_hints);
apply_inlay_hint_changes(type_inlay_hints);
apply_inlay_hint_changes(parameter_inlay_hints);
apply_inlay_hint_changes(other_inlay_hints);
apply_inlay_hint_changes(padding_after_inlay_hints);
}
self.inlay_hints_oudated = true;
for text_annotation in self.inlay_hints.values_mut() {
let DocumentInlayHints {
id: _,
type_inlay_hints,
parameter_inlay_hints,
other_inlay_hints,
padding_before_inlay_hints,
padding_after_inlay_hints,
} = text_annotation;
apply_inlay_hint_changes(padding_before_inlay_hints);
apply_inlay_hint_changes(type_inlay_hints);
apply_inlay_hint_changes(parameter_inlay_hints);
apply_inlay_hint_changes(other_inlay_hints);
apply_inlay_hint_changes(padding_after_inlay_hints);
}
helix_event::dispatch(DocumentDidChange {
doc: self,
view: view_id,
old_text: &old_doc,
changes,
ghost_transaction: !emit_lsp_notification,
});
if emit_lsp_notification {
// TODO: move to hook
// emit lsp notification
for language_server in self.language_servers() {
let notify = language_server.text_document_did_change(
self.versioned_identifier(),
&old_doc,
self.text(),
changes,
);
if emit_lsp_notification {
// TODO: move to hook
// emit lsp notification
for language_server in self.language_servers() {
let notify = language_server.text_document_did_change(
self.versioned_identifier(),
&old_doc,
self.text(),
changes,
);
if let Some(notify) = notify {
tokio::spawn(notify);
}
if let Some(notify) = notify {
tokio::spawn(notify);
}
}
}
success
if let Some(selection) = transaction.selection() {
self.selections.insert(
view_id,
selection.clone().ensure_invariants(self.text.slice(..)),
);
helix_event::dispatch(SelectionDidChange {
doc: self,
view: view_id,
});
}
true
}
fn apply_inner(

10
helix-view/src/events.rs
Unescape Escape View File

@ -1,9 +1,15 @@
use helix_core::Rope;
use helix_core::{ChangeSet, Rope};
use helix_event::events;
use crate::{Document, ViewId};
events! {
DocumentDidChange<'a> { doc: &'a mut Document, view: ViewId, old_text: &'a Rope }
DocumentDidChange<'a> {
doc: &'a mut Document,
view: ViewId,
old_text: &'a Rope,
changes: &'a ChangeSet,
ghost_transaction: bool
}
SelectionDidChange<'a> { doc: &'a mut Document, view: ViewId }
}

Write Preview
Loading…
Cancel
Save