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-rw-r--r--helix-view/src/document.rs56
1 files changed, 22 insertions, 34 deletions
diff --git a/helix-view/src/document.rs b/helix-view/src/document.rs
index 71577a32..dbe71c80 100644
--- a/helix-view/src/document.rs
+++ b/helix-view/src/document.rs
@@ -160,24 +160,13 @@ impl Document {
self.state.selection = selection;
}
- pub fn apply(&mut self, transaction: &Transaction) -> bool {
+ pub fn _apply(&mut self, transaction: &Transaction) -> bool {
let old_doc = self.text().clone();
- // store the state just before any changes are made. This allows us to undo to the
- // state just before a transaction was applied.
- if self.changes.is_empty() && !transaction.changes().is_empty() {
- self.old_state = Some(self.state.clone());
- }
-
let success = transaction.apply(&mut self.state);
if !transaction.changes().is_empty() {
- // Compose this transaction with the previous one
- take_with(&mut self.changes, |changes| {
- changes.compose(transaction.changes().clone())
- });
-
- // TODO: when composing, replace transaction.selection too
+ // TODO: self.version += 1;?
// update tree-sitter syntax tree
if let Some(syntax) = &mut self.syntax {
@@ -203,21 +192,28 @@ impl Document {
success
}
+ pub fn apply(&mut self, transaction: &Transaction) -> bool {
+ // store the state just before any changes are made. This allows us to undo to the
+ // state just before a transaction was applied.
+ if self.changes.is_empty() && !transaction.changes().is_empty() {
+ self.old_state = Some(self.state.clone());
+ }
+
+ let success = self._apply(&transaction);
+
+ if !transaction.changes().is_empty() {
+ // Compose this transaction with the previous one
+ take_with(&mut self.changes, |changes| {
+ changes.compose(transaction.changes().clone())
+ });
+ }
+ success
+ }
+
pub fn undo(&mut self) -> bool {
if let Some(transaction) = self.history.undo() {
- let old_doc = self.text().clone();
self.version += 1;
- let success = transaction.apply(&mut self.state);
-
- // update tree-sitter syntax tree
- if let Some(syntax) = &mut self.syntax {
- // TODO: no unwrap
- syntax
- .update(&old_doc, &self.state.doc, transaction.changes())
- .unwrap();
- }
-
- // TODO: undo / redo need to emit changes to lsp
+ let success = self._apply(&transaction);
// reset changeset to fix len
self.changes = ChangeSet::new(self.text());
@@ -229,17 +225,9 @@ impl Document {
pub fn redo(&mut self) -> bool {
if let Some(transaction) = self.history.redo() {
- let old_doc = self.text().clone();
self.version += 1;
- let success = transaction.apply(&mut self.state);
- // update tree-sitter syntax tree
- if let Some(syntax) = &mut self.syntax {
- // TODO: no unwrap
- syntax
- .update(&old_doc, &self.state.doc, transaction.changes())
- .unwrap();
- }
+ let success = self._apply(&transaction);
// reset changeset to fix len
self.changes = ChangeSet::new(self.text());