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@ -14,44 +14,54 @@ use crate::{
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view::{View, PADDING},
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};
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pub struct Context<'a, 'b> {
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pub count: usize,
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pub view: &'a mut View,
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pub executor: &'a smol::Executor<'b>,
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}
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/// A command is a function that takes the current state and a count, and does a side-effect on the
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/// state (usually by creating and applying a transaction).
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pub type Command = fn(view: &mut View, count: usize);
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pub type Command = fn(cx: &mut Context);
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pub fn move_char_left(view: &mut View, count: usize) {
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pub fn move_char_left(cx: &mut Context) {
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let selection =
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view.doc
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cx.view
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.doc
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.state
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.move_selection(Direction::Backward, Granularity::Character, count);
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view.doc.set_selection(selection);
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.move_selection(Direction::Backward, Granularity::Character, cx.count);
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cx.view.doc.set_selection(selection);
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}
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pub fn move_char_right(view: &mut View, count: usize) {
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pub fn move_char_right(cx: &mut Context) {
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let selection =
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view.doc
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cx.view
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.doc
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.state
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.move_selection(Direction::Forward, Granularity::Character, count);
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view.doc.set_selection(selection);
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.move_selection(Direction::Forward, Granularity::Character, cx.count);
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cx.view.doc.set_selection(selection);
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}
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pub fn move_line_up(view: &mut View, count: usize) {
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let selection = view
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.doc
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.state
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.move_selection(Direction::Backward, Granularity::Line, count);
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view.doc.set_selection(selection);
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pub fn move_line_up(cx: &mut Context) {
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let selection =
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cx.view
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.doc
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.state
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.move_selection(Direction::Backward, Granularity::Line, cx.count);
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cx.view.doc.set_selection(selection);
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}
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pub fn move_line_down(view: &mut View, count: usize) {
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let selection = view
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.doc
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.state
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.move_selection(Direction::Forward, Granularity::Line, count);
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view.doc.set_selection(selection);
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pub fn move_line_down(cx: &mut Context) {
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let selection =
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cx.view
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.doc
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.state
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.move_selection(Direction::Forward, Granularity::Line, cx.count);
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cx.view.doc.set_selection(selection);
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}
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pub fn move_line_end(view: &mut View, _count: usize) {
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let lines = selection_lines(&view.doc.state);
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pub fn move_line_end(cx: &mut Context) {
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let lines = selection_lines(&cx.view.doc.state);
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let positions = lines
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.into_iter()
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@ -60,78 +70,78 @@ pub fn move_line_end(view: &mut View, _count: usize) {
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// Line end is pos at the start of next line - 1
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// subtract another 1 because the line ends with \n
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view.doc.text().line_to_char(index + 1).saturating_sub(2)
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cx.view.doc.text().line_to_char(index + 1).saturating_sub(2)
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})
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.map(|pos| Range::new(pos, pos));
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let selection = Selection::new(positions.collect(), 0);
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view.doc.set_selection(selection);
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cx.view.doc.set_selection(selection);
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}
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pub fn move_line_start(view: &mut View, _count: usize) {
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let lines = selection_lines(&view.doc.state);
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pub fn move_line_start(cx: &mut Context) {
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let lines = selection_lines(&cx.view.doc.state);
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let positions = lines
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.into_iter()
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.map(|index| {
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// adjust all positions to the start of the line.
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view.doc.text().line_to_char(index)
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cx.view.doc.text().line_to_char(index)
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})
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.map(|pos| Range::new(pos, pos));
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let selection = Selection::new(positions.collect(), 0);
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view.doc.set_selection(selection);
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cx.view.doc.set_selection(selection);
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}
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pub fn move_next_word_start(view: &mut View, count: usize) {
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let pos = view.doc.state.move_pos(
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view.doc.selection().cursor(),
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pub fn move_next_word_start(cx: &mut Context) {
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let pos = cx.view.doc.state.move_pos(
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cx.view.doc.selection().cursor(),
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Direction::Forward,
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Granularity::Word,
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count,
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cx.count,
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);
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view.doc.set_selection(Selection::point(pos));
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cx.view.doc.set_selection(Selection::point(pos));
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}
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pub fn move_prev_word_start(view: &mut View, count: usize) {
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let pos = view.doc.state.move_pos(
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view.doc.selection().cursor(),
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pub fn move_prev_word_start(cx: &mut Context) {
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let pos = cx.view.doc.state.move_pos(
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cx.view.doc.selection().cursor(),
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Direction::Backward,
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Granularity::Word,
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count,
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cx.count,
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);
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view.doc.set_selection(Selection::point(pos));
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cx.view.doc.set_selection(Selection::point(pos));
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}
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pub fn move_next_word_end(view: &mut View, count: usize) {
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pub fn move_next_word_end(cx: &mut Context) {
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let pos = State::move_next_word_end(
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&view.doc.text().slice(..),
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view.doc.selection().cursor(),
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count,
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&cx.view.doc.text().slice(..),
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cx.view.doc.selection().cursor(),
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cx.count,
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);
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view.doc.set_selection(Selection::point(pos));
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cx.view.doc.set_selection(Selection::point(pos));
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}
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pub fn move_file_start(view: &mut View, _count: usize) {
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view.doc.set_selection(Selection::point(0));
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pub fn move_file_start(cx: &mut Context) {
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cx.view.doc.set_selection(Selection::point(0));
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view.doc.mode = Mode::Normal;
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cx.view.doc.mode = Mode::Normal;
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}
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pub fn move_file_end(view: &mut View, _count: usize) {
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let text = &view.doc.text();
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pub fn move_file_end(cx: &mut Context) {
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let text = &cx.view.doc.text();
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let last_line = text.line_to_char(text.len_lines().saturating_sub(2));
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view.doc.set_selection(Selection::point(last_line));
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cx.view.doc.set_selection(Selection::point(last_line));
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view.doc.mode = Mode::Normal;
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cx.view.doc.mode = Mode::Normal;
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}
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pub fn check_cursor_in_view(view: &mut View) -> bool {
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pub fn check_cursor_in_view(view: &View) -> bool {
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let cursor = view.doc.selection().cursor();
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let line = view.doc.text().char_to_line(cursor);
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let document_end = view.first_line + view.size.1.saturating_sub(1) as usize;
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@ -142,172 +152,182 @@ pub fn check_cursor_in_view(view: &mut View) -> bool {
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true
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}
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pub fn page_up(view: &mut View, _count: usize) {
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if view.first_line < PADDING {
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pub fn page_up(cx: &mut Context) {
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if cx.view.first_line < PADDING {
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return;
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}
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view.first_line = view.first_line.saturating_sub(view.size.1 as usize);
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cx.view.first_line = cx.view.first_line.saturating_sub(cx.view.size.1 as usize);
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if !check_cursor_in_view(view) {
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let text = view.doc.text();
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let pos = text.line_to_char(view.last_line().saturating_sub(PADDING));
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view.doc.set_selection(Selection::point(pos));
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if !check_cursor_in_view(cx.view) {
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let text = cx.view.doc.text();
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let pos = text.line_to_char(cx.view.last_line().saturating_sub(PADDING));
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cx.view.doc.set_selection(Selection::point(pos));
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}
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}
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pub fn page_down(view: &mut View, _count: usize) {
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view.first_line += view.size.1 as usize + PADDING;
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pub fn page_down(cx: &mut Context) {
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cx.view.first_line += cx.view.size.1 as usize + PADDING;
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if view.first_line < view.doc.text().len_lines() {
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let text = view.doc.text();
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let pos = text.line_to_char(view.first_line as usize);
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view.doc.set_selection(Selection::point(pos));
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if cx.view.first_line < cx.view.doc.text().len_lines() {
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let text = cx.view.doc.text();
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let pos = text.line_to_char(cx.view.first_line as usize);
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cx.view.doc.set_selection(Selection::point(pos));
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}
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}
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pub fn half_page_up(view: &mut View, _count: usize) {
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if view.first_line < PADDING {
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pub fn half_page_up(cx: &mut Context) {
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if cx.view.first_line < PADDING {
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return;
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}
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view.first_line = view.first_line.saturating_sub(view.size.1 as usize / 2);
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cx.view.first_line = cx
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.view
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.first_line
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.saturating_sub(cx.view.size.1 as usize / 2);
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if !check_cursor_in_view(view) {
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let text = &view.doc.text();
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let pos = text.line_to_char(view.last_line() - PADDING);
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view.doc.set_selection(Selection::point(pos));
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if !check_cursor_in_view(cx.view) {
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let text = &cx.view.doc.text();
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let pos = text.line_to_char(cx.view.last_line() - PADDING);
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cx.view.doc.set_selection(Selection::point(pos));
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}
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}
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pub fn half_page_down(view: &mut View, _count: usize) {
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let lines = view.doc.text().len_lines();
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if view.first_line < lines.saturating_sub(view.size.1 as usize) {
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view.first_line += view.size.1 as usize / 2;
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pub fn half_page_down(cx: &mut Context) {
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let lines = cx.view.doc.text().len_lines();
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if cx.view.first_line < lines.saturating_sub(cx.view.size.1 as usize) {
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cx.view.first_line += cx.view.size.1 as usize / 2;
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}
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if !check_cursor_in_view(view) {
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let text = view.doc.text();
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let pos = text.line_to_char(view.first_line as usize);
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view.doc.set_selection(Selection::point(pos));
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if !check_cursor_in_view(cx.view) {
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let text = cx.view.doc.text();
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let pos = text.line_to_char(cx.view.first_line as usize);
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cx.view.doc.set_selection(Selection::point(pos));
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}
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}
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// avoid select by default by having a visual mode switch that makes movements into selects
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pub fn extend_char_left(view: &mut View, count: usize) {
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pub fn extend_char_left(cx: &mut Context) {
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let selection =
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view.doc
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cx.view
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.doc
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.state
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.extend_selection(Direction::Backward, Granularity::Character, count);
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view.doc.set_selection(selection);
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.extend_selection(Direction::Backward, Granularity::Character, cx.count);
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cx.view.doc.set_selection(selection);
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}
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pub fn extend_char_right(view: &mut View, count: usize) {
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pub fn extend_char_right(cx: &mut Context) {
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let selection =
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view.doc
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cx.view
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.doc
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.state
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.extend_selection(Direction::Forward, Granularity::Character, count);
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view.doc.set_selection(selection);
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.extend_selection(Direction::Forward, Granularity::Character, cx.count);
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cx.view.doc.set_selection(selection);
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}
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pub fn extend_line_up(view: &mut View, count: usize) {
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let selection = view
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.doc
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.state
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.extend_selection(Direction::Backward, Granularity::Line, count);
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view.doc.set_selection(selection);
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pub fn extend_line_up(cx: &mut Context) {
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let selection =
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cx.view
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.doc
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|
|
|
.state
|
|
|
|
|
.extend_selection(Direction::Backward, Granularity::Line, cx.count);
|
|
|
|
|
cx.view.doc.set_selection(selection);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
pub fn extend_line_down(view: &mut View, count: usize) {
|
|
|
|
|
let selection = view
|
|
|
|
|
.doc
|
|
|
|
|
.state
|
|
|
|
|
.extend_selection(Direction::Forward, Granularity::Line, count);
|
|
|
|
|
view.doc.set_selection(selection);
|
|
|
|
|
pub fn extend_line_down(cx: &mut Context) {
|
|
|
|
|
let selection =
|
|
|
|
|
cx.view
|
|
|
|
|
.doc
|
|
|
|
|
.state
|
|
|
|
|
.extend_selection(Direction::Forward, Granularity::Line, cx.count);
|
|
|
|
|
cx.view.doc.set_selection(selection);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
pub fn split_selection_on_newline(view: &mut View, _count: usize) {
|
|
|
|
|
let text = &view.doc.text().slice(..);
|
|
|
|
|
pub fn split_selection_on_newline(cx: &mut Context) {
|
|
|
|
|
let text = &cx.view.doc.text().slice(..);
|
|
|
|
|
// only compile the regex once
|
|
|
|
|
#[allow(clippy::trivial_regex)]
|
|
|
|
|
static REGEX: Lazy<Regex> = Lazy::new(|| Regex::new(r"\n").unwrap());
|
|
|
|
|
let selection = selection::split_on_matches(text, view.doc.selection(), ®EX);
|
|
|
|
|
view.doc.set_selection(selection);
|
|
|
|
|
let selection = selection::split_on_matches(text, cx.view.doc.selection(), ®EX);
|
|
|
|
|
cx.view.doc.set_selection(selection);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
pub fn select_line(view: &mut View, _count: usize) {
|
|
|
|
|
pub fn select_line(cx: &mut Context) {
|
|
|
|
|
// TODO: count
|
|
|
|
|
let pos = view.doc.selection().primary();
|
|
|
|
|
let text = view.doc.text();
|
|
|
|
|
let pos = cx.view.doc.selection().primary();
|
|
|
|
|
let text = cx.view.doc.text();
|
|
|
|
|
let line = text.char_to_line(pos.head);
|
|
|
|
|
let start = text.line_to_char(line);
|
|
|
|
|
let end = text.line_to_char(line + 1).saturating_sub(1);
|
|
|
|
|
|
|
|
|
|
view.doc.set_selection(Selection::single(start, end));
|
|
|
|
|
cx.view.doc.set_selection(Selection::single(start, end));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
pub fn delete_selection(view: &mut View, _count: usize) {
|
|
|
|
|
let transaction = Transaction::change_by_selection(&view.doc.state, |range| {
|
|
|
|
|
pub fn delete_selection(cx: &mut Context) {
|
|
|
|
|
let transaction = Transaction::change_by_selection(&cx.view.doc.state, |range| {
|
|
|
|
|
(range.from(), range.to() + 1, None)
|
|
|
|
|
});
|
|
|
|
|
view.doc.apply(&transaction);
|
|
|
|
|
cx.view.doc.apply(&transaction);
|
|
|
|
|
|
|
|
|
|
append_changes_to_history(view);
|
|
|
|
|
append_changes_to_history(cx);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
pub fn change_selection(view: &mut View, count: usize) {
|
|
|
|
|
delete_selection(view, count);
|
|
|
|
|
insert_mode(view, count);
|
|
|
|
|
pub fn change_selection(cx: &mut Context) {
|
|
|
|
|
delete_selection(cx);
|
|
|
|
|
insert_mode(cx);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
pub fn collapse_selection(view: &mut View, _count: usize) {
|
|
|
|
|
let selection = view
|
|
|
|
|
pub fn collapse_selection(cx: &mut Context) {
|
|
|
|
|
let selection = cx
|
|
|
|
|
.view
|
|
|
|
|
.doc
|
|
|
|
|
.selection()
|
|
|
|
|
.transform(|range| Range::new(range.head, range.head));
|
|
|
|
|
|
|
|
|
|
view.doc.set_selection(selection);
|
|
|
|
|
cx.view.doc.set_selection(selection);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
pub fn flip_selections(view: &mut View, _count: usize) {
|
|
|
|
|
let selection = view
|
|
|
|
|
pub fn flip_selections(cx: &mut Context) {
|
|
|
|
|
let selection = cx
|
|
|
|
|
.view
|
|
|
|
|
.doc
|
|
|
|
|
.selection()
|
|
|
|
|
.transform(|range| Range::new(range.head, range.anchor));
|
|
|
|
|
|
|
|
|
|
view.doc.set_selection(selection);
|
|
|
|
|
cx.view.doc.set_selection(selection);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
fn enter_insert_mode(view: &mut View) {
|
|
|
|
|
view.doc.mode = Mode::Insert;
|
|
|
|
|
fn enter_insert_mode(cx: &mut Context) {
|
|
|
|
|
cx.view.doc.mode = Mode::Insert;
|
|
|
|
|
|
|
|
|
|
append_changes_to_history(view);
|
|
|
|
|
append_changes_to_history(cx);
|
|
|
|
|
}
|
|
|
|
|
// inserts at the start of each selection
|
|
|
|
|
pub fn insert_mode(view: &mut View, _count: usize) {
|
|
|
|
|
enter_insert_mode(view);
|
|
|
|
|
pub fn insert_mode(cx: &mut Context) {
|
|
|
|
|
enter_insert_mode(cx);
|
|
|
|
|
|
|
|
|
|
let selection = view
|
|
|
|
|
let selection = cx
|
|
|
|
|
.view
|
|
|
|
|
.doc
|
|
|
|
|
.selection()
|
|
|
|
|
.transform(|range| Range::new(range.to(), range.from()));
|
|
|
|
|
view.doc.set_selection(selection);
|
|
|
|
|
cx.view.doc.set_selection(selection);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// inserts at the end of each selection
|
|
|
|
|
pub fn append_mode(view: &mut View, _count: usize) {
|
|
|
|
|
enter_insert_mode(view);
|
|
|
|
|
view.doc.restore_cursor = true;
|
|
|
|
|
pub fn append_mode(cx: &mut Context) {
|
|
|
|
|
enter_insert_mode(cx);
|
|
|
|
|
cx.view.doc.restore_cursor = true;
|
|
|
|
|
|
|
|
|
|
// TODO: as transaction
|
|
|
|
|
let text = &view.doc.text().slice(..);
|
|
|
|
|
let selection = view.doc.selection().transform(|range| {
|
|
|
|
|
let text = &cx.view.doc.text().slice(..);
|
|
|
|
|
let selection = cx.view.doc.selection().transform(|range| {
|
|
|
|
|
// TODO: to() + next char
|
|
|
|
|
Range::new(
|
|
|
|
|
range.from(),
|
|
|
|
|
graphemes::next_grapheme_boundary(text, range.to()),
|
|
|
|
|
)
|
|
|
|
|
});
|
|
|
|
|
view.doc.set_selection(selection);
|
|
|
|
|
cx.view.doc.set_selection(selection);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// TODO: I, A, o and O can share a lot of the primitives.
|
|
|
|
@ -332,30 +352,30 @@ fn selection_lines(state: &State) -> Vec<usize> {
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// I inserts at the start of each line with a selection
|
|
|
|
|
pub fn prepend_to_line(view: &mut View, count: usize) {
|
|
|
|
|
enter_insert_mode(view);
|
|
|
|
|
pub fn prepend_to_line(cx: &mut Context) {
|
|
|
|
|
enter_insert_mode(cx);
|
|
|
|
|
|
|
|
|
|
move_line_start(view, count);
|
|
|
|
|
move_line_start(cx);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// A inserts at the end of each line with a selection
|
|
|
|
|
pub fn append_to_line(view: &mut View, count: usize) {
|
|
|
|
|
enter_insert_mode(view);
|
|
|
|
|
pub fn append_to_line(cx: &mut Context) {
|
|
|
|
|
enter_insert_mode(cx);
|
|
|
|
|
|
|
|
|
|
move_line_end(view, count);
|
|
|
|
|
move_line_end(cx);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// o inserts a new line after each line with a selection
|
|
|
|
|
pub fn open_below(view: &mut View, _count: usize) {
|
|
|
|
|
enter_insert_mode(view);
|
|
|
|
|
pub fn open_below(cx: &mut Context) {
|
|
|
|
|
enter_insert_mode(cx);
|
|
|
|
|
|
|
|
|
|
let lines = selection_lines(&view.doc.state);
|
|
|
|
|
let lines = selection_lines(&cx.view.doc.state);
|
|
|
|
|
|
|
|
|
|
let positions: Vec<_> = lines
|
|
|
|
|
.into_iter()
|
|
|
|
|
.map(|index| {
|
|
|
|
|
// adjust all positions to the end of the line/start of the next one.
|
|
|
|
|
view.doc.text().line_to_char(index + 1)
|
|
|
|
|
cx.view.doc.text().line_to_char(index + 1)
|
|
|
|
|
})
|
|
|
|
|
.collect();
|
|
|
|
|
|
|
|
|
@ -376,82 +396,85 @@ pub fn open_below(view: &mut View, _count: usize) {
|
|
|
|
|
0,
|
|
|
|
|
);
|
|
|
|
|
|
|
|
|
|
let transaction = Transaction::change(&view.doc.state, changes).with_selection(selection);
|
|
|
|
|
let transaction = Transaction::change(&cx.view.doc.state, changes).with_selection(selection);
|
|
|
|
|
|
|
|
|
|
view.doc.apply(&transaction);
|
|
|
|
|
cx.view.doc.apply(&transaction);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// O inserts a new line before each line with a selection
|
|
|
|
|
|
|
|
|
|
fn append_changes_to_history(view: &mut View) {
|
|
|
|
|
if view.doc.changes.is_empty() {
|
|
|
|
|
fn append_changes_to_history(cx: &mut Context) {
|
|
|
|
|
if cx.view.doc.changes.is_empty() {
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
let new_changeset = ChangeSet::new(view.doc.text());
|
|
|
|
|
let changes = std::mem::replace(&mut view.doc.changes, new_changeset);
|
|
|
|
|
let new_changeset = ChangeSet::new(cx.view.doc.text());
|
|
|
|
|
let changes = std::mem::replace(&mut cx.view.doc.changes, new_changeset);
|
|
|
|
|
// 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.
|
|
|
|
|
let transaction = Transaction::from(changes).with_selection(view.doc.selection().clone());
|
|
|
|
|
let transaction = Transaction::from(changes).with_selection(cx.view.doc.selection().clone());
|
|
|
|
|
|
|
|
|
|
// increment document version
|
|
|
|
|
// TODO: needs to happen on undo/redo too
|
|
|
|
|
view.doc.version += 1;
|
|
|
|
|
cx.view.doc.version += 1;
|
|
|
|
|
|
|
|
|
|
// TODO: trigger lsp/documentDidChange with changes
|
|
|
|
|
|
|
|
|
|
// HAXX: we need to reconstruct the state as it was before the changes..
|
|
|
|
|
let old_state = std::mem::replace(&mut view.doc.old_state, view.doc.state.clone());
|
|
|
|
|
let old_state = std::mem::replace(&mut cx.view.doc.old_state, cx.view.doc.state.clone());
|
|
|
|
|
// TODO: take transaction by value?
|
|
|
|
|
view.doc.history.commit_revision(&transaction, &old_state);
|
|
|
|
|
cx.view
|
|
|
|
|
.doc
|
|
|
|
|
.history
|
|
|
|
|
.commit_revision(&transaction, &old_state);
|
|
|
|
|
|
|
|
|
|
// TODO: notify LSP of changes
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
pub fn normal_mode(view: &mut View, _count: usize) {
|
|
|
|
|
view.doc.mode = Mode::Normal;
|
|
|
|
|
pub fn normal_mode(cx: &mut Context) {
|
|
|
|
|
cx.view.doc.mode = Mode::Normal;
|
|
|
|
|
|
|
|
|
|
append_changes_to_history(view);
|
|
|
|
|
append_changes_to_history(cx);
|
|
|
|
|
|
|
|
|
|
// if leaving append mode, move cursor back by 1
|
|
|
|
|
if view.doc.restore_cursor {
|
|
|
|
|
let text = &view.doc.text().slice(..);
|
|
|
|
|
let selection = view.doc.selection().transform(|range| {
|
|
|
|
|
if cx.view.doc.restore_cursor {
|
|
|
|
|
let text = &cx.view.doc.text().slice(..);
|
|
|
|
|
let selection = cx.view.doc.selection().transform(|range| {
|
|
|
|
|
Range::new(
|
|
|
|
|
range.from(),
|
|
|
|
|
graphemes::prev_grapheme_boundary(text, range.to()),
|
|
|
|
|
)
|
|
|
|
|
});
|
|
|
|
|
view.doc.set_selection(selection);
|
|
|
|
|
cx.view.doc.set_selection(selection);
|
|
|
|
|
|
|
|
|
|
view.doc.restore_cursor = false;
|
|
|
|
|
cx.view.doc.restore_cursor = false;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
pub fn goto_mode(view: &mut View, _count: usize) {
|
|
|
|
|
view.doc.mode = Mode::Goto;
|
|
|
|
|
pub fn goto_mode(cx: &mut Context) {
|
|
|
|
|
cx.view.doc.mode = Mode::Goto;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// NOTE: Transactions in this module get appended to history when we switch back to normal mode.
|
|
|
|
|
pub mod insert {
|
|
|
|
|
use super::*;
|
|
|
|
|
// TODO: insert means add text just before cursor, on exit we should be on the last letter.
|
|
|
|
|
pub fn insert_char(view: &mut View, c: char) {
|
|
|
|
|
pub fn insert_char(cx: &mut Context, c: char) {
|
|
|
|
|
let c = Tendril::from_char(c);
|
|
|
|
|
let transaction = Transaction::insert(&view.doc.state, c);
|
|
|
|
|
let transaction = Transaction::insert(&cx.view.doc.state, c);
|
|
|
|
|
|
|
|
|
|
view.doc.apply(&transaction);
|
|
|
|
|
cx.view.doc.apply(&transaction);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
pub fn insert_tab(view: &mut View, _count: usize) {
|
|
|
|
|
insert_char(view, '\t');
|
|
|
|
|
pub fn insert_tab(cx: &mut Context) {
|
|
|
|
|
insert_char(cx, '\t');
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
pub fn insert_newline(view: &mut View, _count: usize) {
|
|
|
|
|
let transaction = Transaction::change_by_selection(&view.doc.state, |range| {
|
|
|
|
|
pub fn insert_newline(cx: &mut Context) {
|
|
|
|
|
let transaction = Transaction::change_by_selection(&cx.view.doc.state, |range| {
|
|
|
|
|
let indent_level = helix_core::indent::suggested_indent_for_pos(
|
|
|
|
|
view.doc.syntax.as_ref(),
|
|
|
|
|
&view.doc.state,
|
|
|
|
|
cx.view.doc.syntax.as_ref(),
|
|
|
|
|
&cx.view.doc.state,
|
|
|
|
|
range.head,
|
|
|
|
|
);
|
|
|
|
|
let indent = " ".repeat(TAB_WIDTH).repeat(indent_level);
|
|
|
|
@ -460,32 +483,32 @@ pub mod insert {
|
|
|
|
|
text.push_str(&indent);
|
|
|
|
|
(range.head, range.head, Some(text.into()))
|
|
|
|
|
});
|
|
|
|
|
view.doc.apply(&transaction);
|
|
|
|
|
cx.view.doc.apply(&transaction);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// TODO: handle indent-aware delete
|
|
|
|
|
pub fn delete_char_backward(view: &mut View, count: usize) {
|
|
|
|
|
let text = &view.doc.text().slice(..);
|
|
|
|
|
let transaction = Transaction::change_by_selection(&view.doc.state, |range| {
|
|
|
|
|
pub fn delete_char_backward(cx: &mut Context) {
|
|
|
|
|
let text = &cx.view.doc.text().slice(..);
|
|
|
|
|
let transaction = Transaction::change_by_selection(&cx.view.doc.state, |range| {
|
|
|
|
|
(
|
|
|
|
|
graphemes::nth_prev_grapheme_boundary(text, range.head, count),
|
|
|
|
|
graphemes::nth_prev_grapheme_boundary(text, range.head, cx.count),
|
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|
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|
range.head,
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|
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|
None,
|
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|
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|
)
|
|
|
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|
});
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|
|
|
|
view.doc.apply(&transaction);
|
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|
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|
cx.view.doc.apply(&transaction);
|
|
|
|
|
}
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|
|
|
|
|
|
|
|
|
pub fn delete_char_forward(view: &mut View, count: usize) {
|
|
|
|
|
let text = &view.doc.text().slice(..);
|
|
|
|
|
let transaction = Transaction::change_by_selection(&view.doc.state, |range| {
|
|
|
|
|
pub fn delete_char_forward(cx: &mut Context) {
|
|
|
|
|
let text = &cx.view.doc.text().slice(..);
|
|
|
|
|
let transaction = Transaction::change_by_selection(&cx.view.doc.state, |range| {
|
|
|
|
|
(
|
|
|
|
|
range.head,
|
|
|
|
|
graphemes::nth_next_grapheme_boundary(text, range.head, count),
|
|
|
|
|
graphemes::nth_next_grapheme_boundary(text, range.head, cx.count),
|
|
|
|
|
None,
|
|
|
|
|
)
|
|
|
|
|
});
|
|
|
|
|
view.doc.apply(&transaction);
|
|
|
|
|
cx.view.doc.apply(&transaction);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
@ -495,31 +518,32 @@ pub fn insert_char_prompt(prompt: &mut Prompt, c: char) {
|
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|
|
|
|
|
|
|
// Undo / Redo
|
|
|
|
|
|
|
|
|
|
pub fn undo(view: &mut View, _count: usize) {
|
|
|
|
|
if let Some(revert) = view.doc.history.undo() {
|
|
|
|
|
view.doc.version += 1;
|
|
|
|
|
view.doc.apply(&revert);
|
|
|
|
|
pub fn undo(cx: &mut Context) {
|
|
|
|
|
if let Some(revert) = cx.view.doc.history.undo() {
|
|
|
|
|
cx.view.doc.version += 1;
|
|
|
|
|
cx.view.doc.apply(&revert);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// TODO: each command could simply return a Option<transaction>, then the higher level handles storing it?
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
pub fn redo(view: &mut View, _count: usize) {
|
|
|
|
|
if let Some(transaction) = view.doc.history.redo() {
|
|
|
|
|
view.doc.version += 1;
|
|
|
|
|
view.doc.apply(&transaction);
|
|
|
|
|
pub fn redo(cx: &mut Context) {
|
|
|
|
|
if let Some(transaction) = cx.view.doc.history.redo() {
|
|
|
|
|
cx.view.doc.version += 1;
|
|
|
|
|
cx.view.doc.apply(&transaction);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// Yank / Paste
|
|
|
|
|
|
|
|
|
|
pub fn yank(view: &mut View, _count: usize) {
|
|
|
|
|
pub fn yank(cx: &mut Context) {
|
|
|
|
|
// TODO: should selections be made end inclusive?
|
|
|
|
|
let values = view
|
|
|
|
|
let values = cx
|
|
|
|
|
.view
|
|
|
|
|
.doc
|
|
|
|
|
.state
|
|
|
|
|
.selection()
|
|
|
|
|
.fragments(&view.doc.text().slice(..))
|
|
|
|
|
.fragments(&cx.view.doc.text().slice(..))
|
|
|
|
|
.map(|cow| cow.into_owned())
|
|
|
|
|
.collect();
|
|
|
|
|
|
|
|
|
@ -528,7 +552,7 @@ pub fn yank(view: &mut View, _count: usize) {
|
|
|
|
|
register::set(reg, values);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
pub fn paste(view: &mut View, _count: usize) {
|
|
|
|
|
pub fn paste(cx: &mut Context) {
|
|
|
|
|
// TODO: allow specifying reg
|
|
|
|
|
let reg = '"';
|
|
|
|
|
if let Some(values) = register::get(reg) {
|
|
|
|
@ -560,19 +584,19 @@ pub fn paste(view: &mut View, _count: usize) {
|
|
|
|
|
let transaction = if linewise {
|
|
|
|
|
// paste on the next line
|
|
|
|
|
// TODO: can simply take a range + modifier and compute the right pos without ifs
|
|
|
|
|
let text = view.doc.text();
|
|
|
|
|
Transaction::change_by_selection(&view.doc.state, |range| {
|
|
|
|
|
let text = cx.view.doc.text();
|
|
|
|
|
Transaction::change_by_selection(&cx.view.doc.state, |range| {
|
|
|
|
|
let line_end = text.line_to_char(text.char_to_line(range.head) + 1);
|
|
|
|
|
(line_end, line_end, Some(values.next().unwrap()))
|
|
|
|
|
})
|
|
|
|
|
} else {
|
|
|
|
|
Transaction::change_by_selection(&view.doc.state, |range| {
|
|
|
|
|
Transaction::change_by_selection(&cx.view.doc.state, |range| {
|
|
|
|
|
(range.head + 1, range.head + 1, Some(values.next().unwrap()))
|
|
|
|
|
})
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
view.doc.apply(&transaction);
|
|
|
|
|
append_changes_to_history(view);
|
|
|
|
|
cx.view.doc.apply(&transaction);
|
|
|
|
|
append_changes_to_history(cx);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
@ -593,29 +617,29 @@ fn get_lines(view: &View) -> Vec<usize> {
|
|
|
|
|
lines
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
pub fn indent(view: &mut View, _count: usize) {
|
|
|
|
|
let lines = get_lines(view);
|
|
|
|
|
pub fn indent(cx: &mut Context) {
|
|
|
|
|
let lines = get_lines(cx.view);
|
|
|
|
|
|
|
|
|
|
// Indent by one level
|
|
|
|
|
let indent = Tendril::from(" ".repeat(TAB_WIDTH));
|
|
|
|
|
|
|
|
|
|
let transaction = Transaction::change(
|
|
|
|
|
&view.doc.state,
|
|
|
|
|
&cx.view.doc.state,
|
|
|
|
|
lines.into_iter().map(|line| {
|
|
|
|
|
let pos = view.doc.text().line_to_char(line);
|
|
|
|
|
let pos = cx.view.doc.text().line_to_char(line);
|
|
|
|
|
(pos, pos, Some(indent.clone()))
|
|
|
|
|
}),
|
|
|
|
|
);
|
|
|
|
|
view.doc.apply(&transaction);
|
|
|
|
|
append_changes_to_history(view);
|
|
|
|
|
cx.view.doc.apply(&transaction);
|
|
|
|
|
append_changes_to_history(cx);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
pub fn unindent(view: &mut View, _count: usize) {
|
|
|
|
|
let lines = get_lines(view);
|
|
|
|
|
pub fn unindent(cx: &mut Context) {
|
|
|
|
|
let lines = get_lines(cx.view);
|
|
|
|
|
let mut changes = Vec::with_capacity(lines.len());
|
|
|
|
|
|
|
|
|
|
for line_idx in lines {
|
|
|
|
|
let line = view.doc.text().line(line_idx);
|
|
|
|
|
let line = cx.view.doc.text().line(line_idx);
|
|
|
|
|
let mut width = 0;
|
|
|
|
|
|
|
|
|
|
for ch in line.chars() {
|
|
|
|
@ -631,18 +655,18 @@ pub fn unindent(view: &mut View, _count: usize) {
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if width > 0 {
|
|
|
|
|
let start = view.doc.text().line_to_char(line_idx);
|
|
|
|
|
let start = cx.view.doc.text().line_to_char(line_idx);
|
|
|
|
|
changes.push((start, start + width, None))
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
let transaction = Transaction::change(&view.doc.state, changes.into_iter());
|
|
|
|
|
let transaction = Transaction::change(&cx.view.doc.state, changes.into_iter());
|
|
|
|
|
|
|
|
|
|
view.doc.apply(&transaction);
|
|
|
|
|
append_changes_to_history(view);
|
|
|
|
|
cx.view.doc.apply(&transaction);
|
|
|
|
|
append_changes_to_history(cx);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
pub fn indent_selection(_view: &mut View, _count: usize) {
|
|
|
|
|
pub fn indent_selection(_cx: &mut Context) {
|
|
|
|
|
// loop over each line and recompute proper indentation
|
|
|
|
|
unimplemented!()
|
|
|
|
|
}
|
|
|
|
|