diff options
Diffstat (limited to 'helix-core')
| -rw-r--r-- | helix-core/src/commands.rs | 53 | ||||
| -rw-r--r-- | helix-core/src/transaction.rs | 5 |
2 files changed, 55 insertions, 3 deletions
diff --git a/helix-core/src/commands.rs b/helix-core/src/commands.rs index 860ec1cb..836667a1 100644 --- a/helix-core/src/commands.rs +++ b/helix-core/src/commands.rs @@ -1,5 +1,5 @@ use crate::graphemes; -use crate::selection::Range; +use crate::selection::{Range, Selection}; use crate::state::{Direction, Granularity, Mode, State}; use crate::transaction::{ChangeSet, Transaction}; use crate::Tendril; @@ -62,8 +62,55 @@ pub fn append_mode(state: &mut State, _count: usize) { // I inserts at the start of each line with a selection // A inserts at the end of each line with a selection -// o inserts a new line before each line with a selection -// O inserts a new line after each line with a selection + +// o inserts a new line after each line with a selection +pub fn open_below(state: &mut State, _count: usize) { + state.mode = Mode::Insert; + + // calculate line numbers for each selection range + let mut lines = state + .selection + .ranges() + .iter() + .map(|range| state.doc.char_to_line(range.head)) + .collect::<Vec<_>>(); + + lines.sort(); + lines.dedup(); + + let positions: Vec<_> = lines + .into_iter() + .map(|index| { + // adjust all positions to the end of the line. + let line = state.doc.line(index); + let line_start = state.doc.line_to_char(index); + line_start + line.len_chars() + }) + .collect(); + + let changes = positions.iter().copied().map(|index| + // generate changes + (index, index, Some(Tendril::from_char('\n')))); + + // TODO: count actually inserts "n" new lines and starts editing on all of them. + // TODO: append "count" newlines and modify cursors to those lines + + let selection = Selection::new( + positions + .iter() + .copied() + .map(|pos| Range::new(pos, pos)) + .collect(), + 0, + ); + + let transaction = Transaction::change(state, changes.collect()).with_selection(selection); + + transaction.apply(state); + // TODO: need to store into history if successful +} + +// O inserts a new line before each line with a selection pub fn normal_mode(state: &mut State, _count: usize) { // TODO: if leaving append mode, move cursor back by 1 diff --git a/helix-core/src/transaction.rs b/helix-core/src/transaction.rs index 7fbcbf6c..3d03de19 100644 --- a/helix-core/src/transaction.rs +++ b/helix-core/src/transaction.rs @@ -339,6 +339,11 @@ impl Transaction { true } + pub fn with_selection(mut self, selection: Selection) -> Self { + self.selection = Some(selection); + self + } + /// Generate a transaction from a set of changes. // TODO: take an owned iter instead of Vec pub fn change(state: &State, changes: Vec<Change>) -> Self { |