diff options
Diffstat (limited to 'helix-view/src')
| -rw-r--r-- | helix-view/src/commands.rs | 255 | ||||
| -rw-r--r-- | helix-view/src/document.rs | 157 | ||||
| -rw-r--r-- | helix-view/src/editor.rs | 7 | ||||
| -rw-r--r-- | helix-view/src/keymap.rs | 9 | ||||
| -rw-r--r-- | helix-view/src/lib.rs | 2 | ||||
| -rw-r--r-- | helix-view/src/view.rs | 40 |
6 files changed, 332 insertions, 138 deletions
diff --git a/helix-view/src/commands.rs b/helix-view/src/commands.rs index e29d070e..b5350ff4 100644 --- a/helix-view/src/commands.rs +++ b/helix-view/src/commands.rs @@ -3,12 +3,13 @@ use helix_core::{ indent::TAB_WIDTH, regex::Regex, register, selection, - state::{Direction, Granularity, Mode, State}, + state::{Direction, Granularity, State}, ChangeSet, Range, Selection, Tendril, Transaction, }; use once_cell::sync::Lazy; use crate::{ + document::Mode, prompt::Prompt, view::{View, PADDING}, }; @@ -19,36 +20,40 @@ pub type Command = fn(view: &mut View, count: usize); pub fn move_char_left(view: &mut View, count: usize) { // TODO: use a transaction - let selection = view - .state - .move_selection(Direction::Backward, Granularity::Character, count); - view.state.selection = selection; + let selection = + view.doc + .state + .move_selection(Direction::Backward, Granularity::Character, count); + view.doc.state.selection = selection; } pub fn move_char_right(view: &mut View, count: usize) { // TODO: use a transaction - view.state.selection = - view.state + view.doc.state.selection = + view.doc + .state .move_selection(Direction::Forward, Granularity::Character, count); } pub fn move_line_up(view: &mut View, count: usize) { // TODO: use a transaction - view.state.selection = view - .state - .move_selection(Direction::Backward, Granularity::Line, count); + view.doc.state.selection = + view.doc + .state + .move_selection(Direction::Backward, Granularity::Line, count); } pub fn move_line_down(view: &mut View, count: usize) { // TODO: use a transaction - view.state.selection = view - .state - .move_selection(Direction::Forward, Granularity::Line, count); + view.doc.state.selection = + view.doc + .state + .move_selection(Direction::Forward, Granularity::Line, count); } pub fn move_line_end(view: &mut View, _count: usize) { // TODO: use a transaction - let lines = selection_lines(&view.state); + let lines = selection_lines(&view.doc.state); let positions = lines .into_iter() @@ -57,89 +62,89 @@ pub fn move_line_end(view: &mut View, _count: usize) { // Line end is pos at the start of next line - 1 // subtract another 1 because the line ends with \n - view.state.doc.line_to_char(index + 1).saturating_sub(2) + view.doc.text().line_to_char(index + 1).saturating_sub(2) }) .map(|pos| Range::new(pos, pos)); let selection = Selection::new(positions.collect(), 0); - let transaction = Transaction::new(&mut view.state).with_selection(selection); + let transaction = Transaction::new(&mut view.doc.state).with_selection(selection); - transaction.apply(&mut view.state); + view.doc.apply(&transaction); } pub fn move_line_start(view: &mut View, _count: usize) { - let lines = selection_lines(&view.state); + let lines = selection_lines(&view.doc.state); let positions = lines .into_iter() .map(|index| { // adjust all positions to the start of the line. - view.state.doc.line_to_char(index) + view.doc.text().line_to_char(index) }) .map(|pos| Range::new(pos, pos)); let selection = Selection::new(positions.collect(), 0); - let transaction = Transaction::new(&mut view.state).with_selection(selection); + let transaction = Transaction::new(&mut view.doc.state).with_selection(selection); - transaction.apply(&mut view.state); + view.doc.apply(&transaction); } pub fn move_next_word_start(view: &mut View, count: usize) { - let pos = view.state.move_pos( - view.state.selection.cursor(), + let pos = view.doc.state.move_pos( + view.doc.state.selection.cursor(), Direction::Forward, Granularity::Word, count, ); // TODO: use a transaction - view.state.selection = Selection::single(pos, pos); + view.doc.state.selection = Selection::single(pos, pos); } pub fn move_prev_word_start(view: &mut View, count: usize) { - let pos = view.state.move_pos( - view.state.selection.cursor(), + let pos = view.doc.state.move_pos( + view.doc.state.selection.cursor(), Direction::Backward, Granularity::Word, count, ); // TODO: use a transaction - view.state.selection = Selection::single(pos, pos); + view.doc.state.selection = Selection::single(pos, pos); } pub fn move_next_word_end(view: &mut View, count: usize) { let pos = State::move_next_word_end( - &view.state.doc().slice(..), - view.state.selection.cursor(), + &view.doc.text().slice(..), + view.doc.state.selection.cursor(), count, ); // TODO: use a transaction - view.state.selection = Selection::single(pos, pos); + view.doc.state.selection = Selection::single(pos, pos); } pub fn move_file_start(view: &mut View, _count: usize) { // TODO: use a transaction - view.state.selection = Selection::single(0, 0); + view.doc.state.selection = Selection::single(0, 0); - view.state.mode = Mode::Normal; + view.doc.mode = Mode::Normal; } pub fn move_file_end(view: &mut View, _count: usize) { // TODO: use a transaction - let text = &view.state.doc; + let text = &view.doc.text(); let last_line = text.line_to_char(text.len_lines().saturating_sub(2)); - view.state.selection = Selection::single(last_line, last_line); + view.doc.state.selection = Selection::single(last_line, last_line); - view.state.mode = Mode::Normal; + view.doc.mode = Mode::Normal; } pub fn check_cursor_in_view(view: &mut View) -> bool { - let cursor = view.state.selection().cursor(); - let line = view.state.doc().char_to_line(cursor); + let cursor = view.doc.state.selection().cursor(); + let line = view.doc.text().char_to_line(cursor); let document_end = view.first_line + view.size.1.saturating_sub(1) as usize; if (line > document_end.saturating_sub(PADDING)) | (line < view.first_line + PADDING) { @@ -156,19 +161,19 @@ pub fn page_up(view: &mut View, _count: usize) { view.first_line = view.first_line.saturating_sub(view.size.1 as usize); if !check_cursor_in_view(view) { - let text = view.state.doc(); + let text = view.doc.text(); let pos = text.line_to_char(view.last_line().saturating_sub(PADDING)); - view.state.selection = Selection::single(pos, pos); + view.doc.state.selection = Selection::single(pos, pos); } } pub fn page_down(view: &mut View, _count: usize) { view.first_line += view.size.1 as usize + PADDING; - if view.first_line < view.state.doc().len_lines() { - let text = view.state.doc(); + if view.first_line < view.doc.text().len_lines() { + let text = view.doc.text(); let pos = text.line_to_char(view.first_line as usize); - view.state.selection = Selection::single(pos, pos); + view.doc.state.selection = Selection::single(pos, pos); } } @@ -180,79 +185,84 @@ pub fn half_page_up(view: &mut View, _count: usize) { view.first_line = view.first_line.saturating_sub(view.size.1 as usize / 2); if !check_cursor_in_view(view) { - let text = &view.state.doc; + let text = &view.doc.text(); let pos = text.line_to_char(view.last_line() - PADDING); - view.state.selection = Selection::single(pos, pos); + view.doc.state.selection = Selection::single(pos, pos); } } pub fn half_page_down(view: &mut View, _count: usize) { - let lines = view.state.doc().len_lines(); + let lines = view.doc.text().len_lines(); if view.first_line < lines.saturating_sub(view.size.1 as usize) { view.first_line += view.size.1 as usize / 2; } if !check_cursor_in_view(view) { - let text = view.state.doc(); + let text = view.doc.text(); let pos = text.line_to_char(view.first_line as usize); - view.state.selection = Selection::single(pos, pos); + view.doc.state.selection = Selection::single(pos, pos); } } // avoid select by default by having a visual mode switch that makes movements into selects pub fn extend_char_left(view: &mut View, count: usize) { // TODO: use a transaction - let selection = view - .state - .extend_selection(Direction::Backward, Granularity::Character, count); - view.state.selection = selection; + let selection = + view.doc + .state + .extend_selection(Direction::Backward, Granularity::Character, count); + view.doc.state.selection = selection; } pub fn extend_char_right(view: &mut View, count: usize) { // TODO: use a transaction - view.state.selection = - view.state + view.doc.state.selection = + view.doc + .state .extend_selection(Direction::Forward, Granularity::Character, count); } pub fn extend_line_up(view: &mut View, count: usize) { // TODO: use a transaction - view.state.selection = - view.state + view.doc.state.selection = + view.doc + .state .extend_selection(Direction::Backward, Granularity::Line, count); } pub fn extend_line_down(view: &mut View, count: usize) { // TODO: use a transaction - view.state.selection = - view.state + view.doc.state.selection = + view.doc + .state .extend_selection(Direction::Forward, Granularity::Line, count); } pub fn split_selection_on_newline(view: &mut View, _count: usize) { - let text = &view.state.doc.slice(..); + let text = &view.doc.text().slice(..); // only compile the regex once #[allow(clippy::trivial_regex)] static REGEX: Lazy<Regex> = Lazy::new(|| Regex::new(r"\n").unwrap()); // TODO: use a transaction - view.state.selection = selection::split_on_matches(text, view.state.selection(), ®EX) + view.doc.state.selection = selection::split_on_matches(text, view.doc.state.selection(), ®EX) } pub fn select_line(view: &mut View, _count: usize) { // TODO: count - let pos = view.state.selection().primary(); - let text = view.state.doc(); + let pos = view.doc.state.selection().primary(); + let text = 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); // TODO: use a transaction - view.state.selection = Selection::single(start, end); + view.doc.state.selection = Selection::single(start, end); } pub fn delete_selection(view: &mut View, _count: usize) { - let transaction = - Transaction::change_by_selection(&view.state, |range| (range.from(), range.to() + 1, None)); - transaction.apply(&mut view.state); + let transaction = Transaction::change_by_selection(&view.doc.state, |range| { + (range.from(), range.to() + 1, None) + }); + view.doc.apply(&transaction); append_changes_to_history(view); } @@ -263,21 +273,23 @@ pub fn change_selection(view: &mut View, count: usize) { } pub fn collapse_selection(view: &mut View, _count: usize) { - view.state.selection = view + view.doc.state.selection = view + .doc .state .selection .transform(|range| Range::new(range.head, range.head)) } pub fn flip_selections(view: &mut View, _count: usize) { - view.state.selection = view + view.doc.state.selection = view + .doc .state .selection .transform(|range| Range::new(range.head, range.anchor)) } fn enter_insert_mode(view: &mut View) { - view.state.mode = Mode::Insert; + view.doc.mode = Mode::Insert; append_changes_to_history(view); } @@ -285,7 +297,8 @@ fn enter_insert_mode(view: &mut View) { pub fn insert_mode(view: &mut View, _count: usize) { enter_insert_mode(view); - view.state.selection = view + view.doc.state.selection = view + .doc .state .selection .transform(|range| Range::new(range.to(), range.from())) @@ -294,11 +307,11 @@ pub fn insert_mode(view: &mut View, _count: usize) { // inserts at the end of each selection pub fn append_mode(view: &mut View, _count: usize) { enter_insert_mode(view); - view.state.restore_cursor = true; + view.doc.restore_cursor = true; // TODO: as transaction - let text = &view.state.doc.slice(..); - view.state.selection = view.state.selection.transform(|range| { + let text = &view.doc.text().slice(..); + view.doc.state.selection = view.doc.state.selection.transform(|range| { // TODO: to() + next char Range::new( range.from(), @@ -346,13 +359,13 @@ pub fn append_to_line(view: &mut View, count: usize) { pub fn open_below(view: &mut View, _count: usize) { enter_insert_mode(view); - let lines = selection_lines(&view.state); + let lines = selection_lines(&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.state.doc.line_to_char(index + 1) + view.doc.text().line_to_char(index + 1) }) .collect(); @@ -373,63 +386,63 @@ pub fn open_below(view: &mut View, _count: usize) { 0, ); - let transaction = Transaction::change(&view.state, changes).with_selection(selection); + let transaction = Transaction::change(&view.doc.state, changes).with_selection(selection); - transaction.apply(&mut view.state); + 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.state.changes.is_empty() { + if view.doc.changes.is_empty() { return; } - let new_changeset = ChangeSet::new(view.state.doc()); - let changes = std::mem::replace(&mut view.state.changes, new_changeset); + let new_changeset = ChangeSet::new(view.doc.text()); + let changes = std::mem::replace(&mut 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.state.selection().clone()); + let transaction = Transaction::from(changes).with_selection(view.doc.state.selection().clone()); // increment document version // TODO: needs to happen on undo/redo too - view.state.version += 1; + view.doc.version += 1; // TODO: trigger lsp/documentDidChange with changes // HAXX: we need to reconstruct the state as it was before the changes.. - let (doc, selection) = view.state.old_state.take().unwrap(); + let (doc, selection) = view.doc.old_state.take().unwrap(); let mut old_state = State::new(doc); old_state.selection = selection; // TODO: take transaction by value? - view.history.commit_revision(&transaction, &old_state); + view.doc.history.commit_revision(&transaction, &old_state); // HAXX - view.state.old_state = Some((view.state.doc().clone(), view.state.selection.clone())); + view.doc.old_state = Some((view.doc.text().clone(), view.doc.state.selection.clone())); } pub fn normal_mode(view: &mut View, _count: usize) { - view.state.mode = Mode::Normal; + view.doc.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(..); - view.state.selection = view.state.selection.transform(|range| { + if view.doc.restore_cursor { + let text = &view.doc.text().slice(..); + view.doc.state.selection = view.doc.state.selection.transform(|range| { Range::new( range.from(), graphemes::prev_grapheme_boundary(text, range.to()), ) }); - view.state.restore_cursor = false; + view.doc.restore_cursor = false; } } pub fn goto_mode(view: &mut View, _count: usize) { - view.state.mode = Mode::Goto; + view.doc.mode = Mode::Goto; } // NOTE: Transactions in this module get appended to history when we switch back to normal mode. @@ -438,9 +451,9 @@ pub mod insert { // 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) { let c = Tendril::from_char(c); - let transaction = Transaction::insert(&view.state, c); + let transaction = Transaction::insert(&view.doc.state, c); - transaction.apply(&mut view.state); + view.doc.apply(&transaction); } pub fn insert_tab(view: &mut View, _count: usize) { @@ -448,41 +461,44 @@ pub mod insert { } pub fn insert_newline(view: &mut View, _count: usize) { - let transaction = Transaction::change_by_selection(&view.state, |range| { - let indent_level = - helix_core::indent::suggested_indent_for_pos(&view.state, range.head); + let transaction = Transaction::change_by_selection(&view.doc.state, |range| { + let indent_level = helix_core::indent::suggested_indent_for_pos( + view.doc.syntax.as_ref(), + &view.doc.state, + range.head, + ); let indent = " ".repeat(TAB_WIDTH).repeat(indent_level); let mut text = String::with_capacity(1 + indent.len()); text.push('\n'); text.push_str(&indent); (range.head, range.head, Some(text.into())) }); - transaction.apply(&mut view.state); + view.doc.apply(&transaction); } // TODO: handle indent-aware delete pub fn delete_char_backward(view: &mut View, count: usize) { - let text = &view.state.doc.slice(..); - let transaction = Transaction::change_by_selection(&view.state, |range| { + let text = &view.doc.text().slice(..); + let transaction = Transaction::change_by_selection(&view.doc.state, |range| { ( graphemes::nth_prev_grapheme_boundary(text, range.head, count), range.head, None, ) }); - transaction.apply(&mut view.state); + view.doc.apply(&transaction); } pub fn delete_char_forward(view: &mut View, count: usize) { - let text = &view.state.doc.slice(..); - let transaction = Transaction::change_by_selection(&view.state, |range| { + let text = &view.doc.text().slice(..); + let transaction = Transaction::change_by_selection(&view.doc.state, |range| { ( range.head, graphemes::nth_next_grapheme_boundary(text, range.head, count), None, ) }); - transaction.apply(&mut view.state); + view.doc.apply(&transaction); } } @@ -493,13 +509,13 @@ pub fn insert_char_prompt(prompt: &mut Prompt, c: char) { // Undo / Redo pub fn undo(view: &mut View, _count: usize) { - view.history.undo(&mut view.state); + view.doc.history.undo(&mut view.doc.state); // TODO: each command could simply return a Option<transaction>, then the higher level handles storing it? } pub fn redo(view: &mut View, _count: usize) { - view.history.redo(&mut view.state); + view.doc.history.redo(&mut view.doc.state); } // Yank / Paste @@ -507,9 +523,10 @@ pub fn redo(view: &mut View, _count: usize) { pub fn yank(view: &mut View, _count: usize) { // TODO: should selections be made end inclusive? let values = view + .doc .state .selection() - .fragments(&view.state.doc().slice(..)) + .fragments(&view.doc.text().slice(..)) .map(|cow| cow.into_owned()) .collect(); @@ -550,18 +567,18 @@ 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.state.doc(); - Transaction::change_by_selection(&view.state, |range| { + let text = view.doc.text(); + Transaction::change_by_selection(&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.state, |range| { + Transaction::change_by_selection(&view.doc.state, |range| { (range.head + 1, range.head + 1, Some(values.next().unwrap())) }) }; - transaction.apply(&mut view.state); + view.doc.apply(&transaction); append_changes_to_history(view); } } @@ -570,9 +587,9 @@ fn get_lines(view: &View) -> Vec<usize> { let mut lines = Vec::new(); // Get all line numbers - for range in view.state.selection.ranges() { - let start = view.state.doc.char_to_line(range.from()); - let end = view.state.doc.char_to_line(range.to()); + for range in view.doc.state.selection.ranges() { + let start = view.doc.text().char_to_line(range.from()); + let end = view.doc.text().char_to_line(range.to()); for line in start..=end { lines.push(line) @@ -590,13 +607,13 @@ pub fn indent(view: &mut View, _count: usize) { let indent = Tendril::from(" ".repeat(TAB_WIDTH)); let transaction = Transaction::change( - &view.state, + &view.doc.state, lines.into_iter().map(|line| { - let pos = view.state.doc.line_to_char(line); + let pos = view.doc.text().line_to_char(line); (pos, pos, Some(indent.clone())) }), ); - transaction.apply(&mut view.state); + view.doc.apply(&transaction); append_changes_to_history(view); } @@ -605,7 +622,7 @@ pub fn unindent(view: &mut View, _count: usize) { let mut changes = Vec::with_capacity(lines.len()); for line_idx in lines { - let line = view.state.doc.line(line_idx); + let line = view.doc.text().line(line_idx); let mut width = 0; for ch in line.chars() { @@ -621,14 +638,14 @@ pub fn unindent(view: &mut View, _count: usize) { } if width > 0 { - let start = view.state.doc.line_to_char(line_idx); + let start = view.doc.text().line_to_char(line_idx); changes.push((start, start + width, None)) } } - let transaction = Transaction::change(&view.state, changes.into_iter()); + let transaction = Transaction::change(&view.doc.state, changes.into_iter()); - transaction.apply(&mut view.state); + view.doc.apply(&transaction); append_changes_to_history(view); } diff --git a/helix-view/src/document.rs b/helix-view/src/document.rs new file mode 100644 index 00000000..c4b9d081 --- /dev/null +++ b/helix-view/src/document.rs @@ -0,0 +1,157 @@ +use anyhow::Error; +use std::path::PathBuf; + +use helix_core::{ + syntax::LOADER, ChangeSet, Diagnostic, History, Position, Range, Rope, RopeSlice, Selection, + State, Syntax, Transaction, +}; + +#[derive(Copy, Clone, PartialEq, Eq, Hash)] +pub enum Mode { + Normal, + Insert, + Goto, +} + +pub struct Document { + pub state: State, // rope + selection + /// File path on disk. + pub path: Option<PathBuf>, + + /// Current editing mode. + pub mode: Mode, + pub restore_cursor: bool, + + /// Tree-sitter AST tree + pub syntax: Option<Syntax>, + + /// Pending changes since last history commit. + pub changes: ChangeSet, + pub history: History, + pub version: i64, // should be usize? + pub old_state: Option<(Rope, Selection)>, + + pub diagnostics: Vec<Diagnostic>, +} + +/// Like std::mem::replace() except it allows the replacement value to be mapped from the +/// original value. +fn take_with<T, F>(mut_ref: &mut T, closure: F) +where + F: FnOnce(T) -> T, +{ + use std::{panic, ptr}; + + unsafe { + let old_t = ptr::read(mut_ref); + let new_t = panic::catch_unwind(panic::AssertUnwindSafe(|| closure(old_t))) + .unwrap_or_else(|_| ::std::process::abort()); + ptr::write(mut_ref, new_t); + } +} + +use url::Url; + +impl Document { + fn new(state: State) -> Self { + let changes = ChangeSet::new(&state.doc); + let old_state = Some((state.doc.clone(), Selection::single(0, 0))); + + Self { + path: None, + state, + mode: Mode::Normal, + restore_cursor: false, + syntax: None, + changes, + old_state, + diagnostics: Vec::new(), + version: 0, + history: History::default(), + } + } + + // TODO: passing scopes here is awkward + pub fn load(path: PathBuf, scopes: &[String]) -> Result<Self, Error> { + use std::{env, fs::File, io::BufReader}; + let _current_dir = env::current_dir()?; + + let doc = Rope::from_reader(BufReader::new(File::open(path.clone())?))?; + + // TODO: create if not found + + let mut doc = Self::new(State::new(doc)); + + if let Some(language_config) = LOADER.language_config_for_file_name(path.as_path()) { + let highlight_config = language_config.highlight_config(scopes).unwrap().unwrap(); + // TODO: config.configure(scopes) is now delayed, is that ok? + + let syntax = Syntax::new(&doc.state.doc, highlight_config.clone()); + + doc.syntax = Some(syntax); + }; + + // canonicalize path to absolute value + doc.path = Some(std::fs::canonicalize(path)?); + + Ok(doc) + } + + pub fn set_language(&mut self, scope: &str, scopes: &[String]) { + if let Some(language_config) = LOADER.language_config_for_scope(scope) { + let highlight_config = language_config.highlight_config(scopes).unwrap().unwrap(); + // TODO: config.configure(scopes) is now delayed, is that ok? + + let syntax = Syntax::new(&self.state.doc, highlight_config.clone()); + + self.syntax = Some(syntax); + }; + } + + // TODO: needs to run on undo/redo + pub fn apply(&mut self, transaction: &Transaction) -> bool { + let old_doc = self.text().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()).unwrap() + }); + + // 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: map state.diagnostics over changes::map_pos too + } + success + } + + #[inline] + pub fn mode(&self) -> Mode { + self.mode + } + + #[inline] + pub fn path(&self) -> Option<&PathBuf> { + self.path.as_ref() + } + + pub fn url(&self) -> Option<Url> { + self.path().map(|path| Url::from_file_path(path).unwrap()) + } + + pub fn text(&self) -> &Rope { + &self.state.doc + } + + // pub fn slice<R>(&self, range: R) -> RopeSlice where R: RangeBounds { + // self.state.doc.slice + // } +} diff --git a/helix-view/src/editor.rs b/helix-view/src/editor.rs index 61abd482..02199255 100644 --- a/helix-view/src/editor.rs +++ b/helix-view/src/editor.rs @@ -1,6 +1,5 @@ use crate::theme::Theme; -use crate::View; -use helix_core::State; +use crate::{Document, View}; use std::path::PathBuf; @@ -27,8 +26,8 @@ impl Editor { pub fn open(&mut self, path: PathBuf, size: (u16, u16)) -> Result<(), Error> { let pos = self.views.len(); - let state = State::load(path, self.theme.scopes())?; - self.views.push(View::new(state, size)?); + let doc = Document::load(path, self.theme.scopes())?; + self.views.push(View::new(doc, size)?); self.focus = pos; Ok(()) } diff --git a/helix-view/src/keymap.rs b/helix-view/src/keymap.rs index 82bdbe21..347e7d77 100644 --- a/helix-view/src/keymap.rs +++ b/helix-view/src/keymap.rs @@ -1,4 +1,5 @@ use crate::commands::{self, Command}; +use crate::document::Mode; use helix_core::{hashmap, state}; use std::collections::HashMap; @@ -88,7 +89,7 @@ pub use crossterm::event::{KeyCode, KeyEvent as Key, KeyModifiers as Modifiers}; // TODO: could be trie based pub type Keymap = HashMap<Vec<Key>, Command>; -pub type Keymaps = HashMap<state::Mode, Keymap>; +pub type Keymaps = HashMap<Mode, Keymap>; macro_rules! key { ($ch:expr) => { @@ -128,7 +129,7 @@ macro_rules! ctrl { pub fn default() -> Keymaps { hashmap!( - state::Mode::Normal => + Mode::Normal => // as long as you cast the first item, rust is able to infer the other cases hashmap!( vec![key!('h')] => commands::move_char_left as Command, @@ -179,7 +180,7 @@ pub fn default() -> Keymaps { vec![ctrl!('u')] => commands::half_page_up, vec![ctrl!('d')] => commands::half_page_down, ), - state::Mode::Insert => hashmap!( + Mode::Insert => hashmap!( vec![Key { code: KeyCode::Esc, modifiers: Modifiers::NONE @@ -201,7 +202,7 @@ pub fn default() -> Keymaps { modifiers: Modifiers::NONE }] => commands::insert::insert_tab, ), - state::Mode::Goto => hashmap!( + Mode::Goto => hashmap!( vec![Key { code: KeyCode::Esc, modifiers: Modifiers::NONE diff --git a/helix-view/src/lib.rs b/helix-view/src/lib.rs index 9abe8a1a..3b923744 100644 --- a/helix-view/src/lib.rs +++ b/helix-view/src/lib.rs @@ -1,10 +1,12 @@ pub mod commands; +pub mod document; pub mod editor; pub mod keymap; pub mod prompt; pub mod theme; pub mod view; +pub use document::Document; pub use editor::Editor; pub use theme::Theme; pub use view::View; diff --git a/helix-view/src/view.rs b/helix-view/src/view.rs index 817714c8..4cf6a2ee 100644 --- a/helix-view/src/view.rs +++ b/helix-view/src/view.rs @@ -2,10 +2,11 @@ use anyhow::Error; use std::borrow::Cow; +use crate::Document; use helix_core::{ graphemes::{grapheme_width, RopeGraphemes}, indent::TAB_WIDTH, - History, Position, RopeSlice, State, + Position, RopeSlice, }; use tui::layout::Rect; @@ -14,29 +15,25 @@ pub const PADDING: usize = 5; // TODO: view should be View { doc: Document(state, history,..) } // since we can have multiple views into the same file pub struct View { - pub state: State, + pub doc: Document, pub first_line: usize, pub size: (u16, u16), - - // TODO: Doc fields - pub history: History, } impl View { - pub fn new(state: State, size: (u16, u16)) -> Result<Self, Error> { + pub fn new(doc: Document, size: (u16, u16)) -> Result<Self, Error> { let view = Self { - state, + doc, first_line: 0, size, - history: History::default(), }; Ok(view) } pub fn ensure_cursor_in_view(&mut self) { - let cursor = self.state.selection().cursor(); - let line = self.state.doc().char_to_line(cursor); + let cursor = self.doc.state.selection().cursor(); + let line = self.doc.text().char_to_line(cursor); let document_end = self.first_line + (self.size.1 as usize).saturating_sub(2); // TODO: side scroll @@ -56,7 +53,7 @@ impl View { let viewport = Rect::new(6, 0, self.size.0, self.size.1 - 2); // - 2 for statusline and prompt std::cmp::min( self.first_line + (viewport.height as usize), - self.state.doc().len_lines() - 1, + self.doc.text().len_lines() - 1, ) } @@ -88,4 +85,25 @@ impl View { Some(Position::new(row, col)) } + + pub fn traverse<F>(&self, text: &RopeSlice, start: usize, end: usize, fun: F) + where + F: Fn(usize, usize), + { + let start = self.screen_coords_at_pos(text, start); + let end = self.screen_coords_at_pos(text, end); + + match (start, end) { + // fully on screen + (Some(start), Some(end)) => { + // we want to calculate ends of lines for each char.. + } + // from start to end of screen + (Some(start), None) => {} + // from start of screen to end + (None, Some(end)) => {} + // not on screen + (None, None) => return, + } + } } |