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Cap selection history to 1024 entries

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This commit is contained in:
Antonio Scandurra 2022-03-28 16:12:34 +02:00
parent 73c2f52158
commit bbfb63ff89
1 changed files with 16 additions and 9 deletions
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25
crates/editor/src/editor.rs
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@ -10,7 +10,7 @@ mod test;
use aho_corasick::AhoCorasick;
use anyhow::Result;
use clock::ReplicaId;
use collections::{BTreeMap, Bound, HashMap, HashSet};
use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
pub use display_map::DisplayPoint;
use display_map::*;
pub use element::*;
@ -62,6 +62,7 @@ use workspace::{settings, ItemNavHistory, Settings, Workspace};
const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
const MAX_LINE_LEN: usize = 1024;
const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
const MAX_SELECTION_HISTORY_LEN: usize = 1024;
action!(Cancel);
action!(Backspace);
@ -537,8 +538,8 @@ struct SelectionHistory {
selections_by_transaction:
HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
mode: SelectionHistoryMode,
undo_stack: Vec<SelectionHistoryEntry>,
redo_stack: Vec<SelectionHistoryEntry>,
undo_stack: VecDeque<SelectionHistoryEntry>,
redo_stack: VecDeque<SelectionHistoryEntry>,
}
impl SelectionHistory {
@ -581,20 +582,26 @@ impl SelectionHistory {
fn push_undo(&mut self, entry: SelectionHistoryEntry) {
if self
.undo_stack
.last()
.back()
.map_or(true, |e| e.selections != entry.selections)
{
self.undo_stack.push(entry)
self.undo_stack.push_back(entry);
if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
self.undo_stack.pop_front();
}
}
}
fn push_redo(&mut self, entry: SelectionHistoryEntry) {
if self
.redo_stack
.last()
.back()
.map_or(true, |e| e.selections != entry.selections)
{
self.redo_stack.push(entry)
self.redo_stack.push_back(entry);
if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
self.redo_stack.pop_front();
}
}
}
}
@ -4388,7 +4395,7 @@ impl Editor {
pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
self.end_selection(cx);
self.selection_history.mode = SelectionHistoryMode::Undoing;
if let Some(entry) = self.selection_history.undo_stack.pop() {
if let Some(entry) = self.selection_history.undo_stack.pop_back() {
self.set_selections(entry.selections.clone(), None, true, cx);
self.select_next_state = entry.select_next_state.clone();
self.add_selections_state = entry.add_selections_state.clone();
@ -4400,7 +4407,7 @@ impl Editor {
pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
self.end_selection(cx);
self.selection_history.mode = SelectionHistoryMode::Redoing;
if let Some(entry) = self.selection_history.redo_stack.pop() {
if let Some(entry) = self.selection_history.redo_stack.pop_back() {
self.set_selections(entry.selections.clone(), None, true, cx);
self.select_next_state = entry.select_next_state.clone();
self.add_selections_state = entry.add_selections_state.clone();