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Factor out append_changes_to_history

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This commit is contained in:
Blaž Hrastnik 2020-10-07 18:31:16 +09:00
parent a5be718dc6
commit 518426b9f4
1 changed files with 17 additions and 6 deletions
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23
helix-view/src/commands.rs
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@ -251,6 +251,8 @@ pub fn delete_selection(view: &mut View, _count: usize) {
let transaction =
Transaction::change_by_selection(&view.state, |range| (range.from(), range.to(), None));
transaction.apply(&mut view.state);
append_changes_to_history(view);
}
pub fn change_selection(view: &mut View, count: usize) {
@ -268,9 +270,7 @@ pub fn collapse_selection(view: &mut View, _count: usize) {
fn enter_insert_mode(view: &mut View) {
view.state.mode = Mode::Insert;
// HAXX
view.state.changes = Some(ChangeSet::new(view.state.doc()));
view.state.old_state = Some((view.state.doc().clone(), view.state.selection.clone()));
append_changes_to_history(view);
}
// inserts at the start of each selection
pub fn insert_mode(view: &mut View, _count: usize) {
@ -367,9 +367,7 @@ pub fn open_below(view: &mut View, _count: usize) {
// O inserts a new line before each line with a selection
pub fn normal_mode(view: &mut View, _count: usize) {
view.state.mode = Mode::Normal;
fn append_changes_to_history(view: &mut View) {
if let Some(changes) = view.state.changes.take() {
// Instead of doing this messy merge we could always commit, and based on transaction
// annotations either add a new layer or compose into the previous one.
@ -382,6 +380,18 @@ pub fn normal_mode(view: &mut View, _count: usize) {
view.history.commit_revision(&transaction, &old_state);
}
// TODO: need to start the state with these vals
// HAXX
view.state.changes = Some(ChangeSet::new(view.state.doc()));
view.state.old_state = Some((view.state.doc().clone(), view.state.selection.clone()));
}
pub fn normal_mode(view: &mut View, _count: usize) {
view.state.mode = Mode::Normal;
append_changes_to_history(view);
// if leaving append mode, move cursor back by 1
if view.state.restore_cursor {
let text = &view.state.doc.slice(..);
@ -486,5 +496,6 @@ pub fn paste(view: &mut View, _count: usize) {
});
transaction.apply(&mut view.state);
append_changes_to_history(view);
}
}