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-rw-r--r--helix-view/src/editor.rs204
-rw-r--r--helix-view/src/gutter.rs95
-rw-r--r--helix-view/src/lib.rs15
-rw-r--r--helix-view/src/view.rs24
4 files changed, 256 insertions, 82 deletions
diff --git a/helix-view/src/editor.rs b/helix-view/src/editor.rs
index 31f8dc84..73da67c9 100644
--- a/helix-view/src/editor.rs
+++ b/helix-view/src/editor.rs
@@ -14,6 +14,7 @@ use tokio_stream::wrappers::UnboundedReceiverStream;
use std::{
collections::{BTreeMap, HashMap},
io::stdin,
+ num::NonZeroUsize,
path::{Path, PathBuf},
pin::Pin,
sync::Arc,
@@ -21,7 +22,7 @@ use std::{
use tokio::time::{sleep, Duration, Instant, Sleep};
-use anyhow::Error;
+use anyhow::{bail, Context, Error};
pub use helix_core::diagnostic::Severity;
pub use helix_core::register::Registers;
@@ -41,6 +42,46 @@ where
#[derive(Debug, Clone, PartialEq, Deserialize)]
#[serde(rename_all = "kebab-case", default, deny_unknown_fields)]
+pub struct FilePickerConfig {
+ /// IgnoreOptions
+ /// Enables ignoring hidden files.
+ /// Whether to hide hidden files in file picker and global search results. Defaults to true.
+ pub hidden: bool,
+ /// Enables reading ignore files from parent directories. Defaults to true.
+ pub parents: bool,
+ /// Enables reading `.ignore` files.
+ /// Whether to hide files listed in .ignore in file picker and global search results. Defaults to true.
+ pub ignore: bool,
+ /// Enables reading `.gitignore` files.
+ /// Whether to hide files listed in .gitignore in file picker and global search results. Defaults to true.
+ pub git_ignore: bool,
+ /// Enables reading global .gitignore, whose path is specified in git's config: `core.excludefile` option.
+ /// Whether to hide files listed in global .gitignore in file picker and global search results. Defaults to true.
+ pub git_global: bool,
+ /// Enables reading `.git/info/exclude` files.
+ /// Whether to hide files listed in .git/info/exclude in file picker and global search results. Defaults to true.
+ pub git_exclude: bool,
+ /// WalkBuilder options
+ /// Maximum Depth to recurse directories in file picker and global search. Defaults to `None`.
+ pub max_depth: Option<usize>,
+}
+
+impl Default for FilePickerConfig {
+ fn default() -> Self {
+ Self {
+ hidden: true,
+ parents: true,
+ ignore: true,
+ git_ignore: true,
+ git_global: true,
+ git_exclude: true,
+ max_depth: None,
+ }
+ }
+}
+
+#[derive(Debug, Clone, PartialEq, Deserialize)]
+#[serde(rename_all = "kebab-case", default, deny_unknown_fields)]
pub struct Config {
/// Padding to keep between the edge of the screen and the cursor when scrolling. Defaults to 5.
pub scrolloff: usize,
@@ -66,9 +107,10 @@ pub struct Config {
pub completion_trigger_len: u8,
/// Whether to display infoboxes. Defaults to true.
pub auto_info: bool,
+ pub file_picker: FilePickerConfig,
}
-#[derive(Debug, Clone, PartialEq, Eq, Deserialize)]
+#[derive(Debug, Copy, Clone, PartialEq, Eq, Deserialize)]
#[serde(rename_all = "kebab-case")]
pub enum LineNumber {
/// Show absolute line number
@@ -97,6 +139,7 @@ impl Default for Config {
idle_timeout: Duration::from_millis(400),
completion_trigger_len: 2,
auto_info: true,
+ file_picker: FilePickerConfig::default(),
}
}
}
@@ -116,7 +159,7 @@ impl std::fmt::Debug for Motion {
#[derive(Debug)]
pub struct Editor {
pub tree: Tree,
- pub next_document_id: usize,
+ pub next_document_id: DocumentId,
pub documents: BTreeMap<DocumentId, Document>,
pub count: Option<std::num::NonZeroUsize>,
pub selected_register: Option<char>,
@@ -154,8 +197,8 @@ pub enum Action {
impl Editor {
pub fn new(
mut area: Rect,
- themes: Arc<theme::Loader>,
- config_loader: Arc<syntax::Loader>,
+ theme_loader: Arc<theme::Loader>,
+ syn_loader: Arc<syntax::Loader>,
config: Config,
) -> Self {
let language_servers = helix_lsp::Registry::new();
@@ -165,17 +208,17 @@ impl Editor {
Self {
tree: Tree::new(area),
- next_document_id: 0,
+ next_document_id: DocumentId::default(),
documents: BTreeMap::new(),
count: None,
selected_register: None,
- theme: themes.default(),
+ theme: theme_loader.default(),
language_servers,
debugger: None,
debugger_events: SelectAll::new(),
breakpoints: HashMap::new(),
- syn_loader: config_loader,
- theme_loader: themes,
+ syn_loader,
+ theme_loader,
registers: Registers::default(),
clipboard_provider: get_clipboard_provider(),
status_msg: None,
@@ -232,7 +275,6 @@ impl Editor {
}
pub fn set_theme_from_name(&mut self, theme: &str) -> anyhow::Result<()> {
- use anyhow::Context;
let theme = self
.theme_loader
.load(theme.as_ref())
@@ -241,6 +283,53 @@ impl Editor {
Ok(())
}
+ /// Refreshes the language server for a given document
+ pub fn refresh_language_server(&mut self, doc_id: DocumentId) -> Option<()> {
+ let doc = self.documents.get_mut(&doc_id)?;
+ doc.detect_language(Some(&self.theme), &self.syn_loader);
+ Self::launch_language_server(&mut self.language_servers, doc)
+ }
+
+ /// Launch a language server for a given document
+ fn launch_language_server(ls: &mut helix_lsp::Registry, doc: &mut Document) -> Option<()> {
+ // try to find a language server based on the language name
+ let language_server = doc.language.as_ref().and_then(|language| {
+ ls.get(language)
+ .map_err(|e| {
+ log::error!(
+ "Failed to initialize the LSP for `{}` {{ {} }}",
+ language.scope(),
+ e
+ )
+ })
+ .ok()
+ });
+ if let Some(language_server) = language_server {
+ // only spawn a new lang server if the servers aren't the same
+ if Some(language_server.id()) != doc.language_server().map(|server| server.id()) {
+ if let Some(language_server) = doc.language_server() {
+ tokio::spawn(language_server.text_document_did_close(doc.identifier()));
+ }
+ let language_id = doc
+ .language()
+ .and_then(|s| s.split('.').last()) // source.rust
+ .map(ToOwned::to_owned)
+ .unwrap_or_default();
+
+ // TODO: this now races with on_init code if the init happens too quickly
+ tokio::spawn(language_server.text_document_did_open(
+ doc.url().unwrap(),
+ doc.version(),
+ doc.text(),
+ language_id,
+ ));
+
+ doc.set_language_server(Some(language_server));
+ }
+ }
+ Some(())
+ }
+
fn _refresh(&mut self) {
for (view, _) in self.tree.views_mut() {
let doc = &self.documents[&view.doc];
@@ -311,23 +400,22 @@ impl Editor {
}
Action::Load => {
let view_id = view!(self).id;
- if let Some(doc) = self.document_mut(id) {
- if doc.selections().is_empty() {
- doc.selections.insert(view_id, Selection::point(0));
- }
+ let doc = self.documents.get_mut(&id).unwrap();
+ if doc.selections().is_empty() {
+ doc.selections.insert(view_id, Selection::point(0));
}
return;
}
- Action::HorizontalSplit => {
- let view = View::new(id);
- let view_id = self.tree.split(view, Layout::Horizontal);
- // initialize selection for view
- let doc = self.documents.get_mut(&id).unwrap();
- doc.selections.insert(view_id, Selection::point(0));
- }
- Action::VerticalSplit => {
+ Action::HorizontalSplit | Action::VerticalSplit => {
let view = View::new(id);
- let view_id = self.tree.split(view, Layout::Vertical);
+ let view_id = self.tree.split(
+ view,
+ match action {
+ Action::HorizontalSplit => Layout::Horizontal,
+ Action::VerticalSplit => Layout::Vertical,
+ _ => unreachable!(),
+ },
+ );
// initialize selection for view
let doc = self.documents.get_mut(&id).unwrap();
doc.selections.insert(view_id, Selection::point(0));
@@ -337,16 +425,19 @@ impl Editor {
self._refresh();
}
- fn new_document(&mut self, mut document: Document) -> DocumentId {
- let id = DocumentId(self.next_document_id);
- self.next_document_id += 1;
- document.id = id;
- self.documents.insert(id, document);
+ /// Generate an id for a new document and register it.
+ fn new_document(&mut self, mut doc: Document) -> DocumentId {
+ let id = self.next_document_id;
+ // Safety: adding 1 from 1 is fine, probably impossible to reach usize max
+ self.next_document_id =
+ DocumentId(unsafe { NonZeroUsize::new_unchecked(self.next_document_id.0.get() + 1) });
+ doc.id = id;
+ self.documents.insert(id, doc);
id
}
- fn new_file_from_document(&mut self, action: Action, document: Document) -> DocumentId {
- let id = self.new_document(document);
+ fn new_file_from_document(&mut self, action: Action, doc: Document) -> DocumentId {
+ let id = self.new_document(doc);
self.switch(id, action);
id
}
@@ -362,54 +453,16 @@ impl Editor {
pub fn open(&mut self, path: PathBuf, action: Action) -> Result<DocumentId, Error> {
let path = helix_core::path::get_canonicalized_path(&path)?;
-
- let id = self
- .documents()
- .find(|doc| doc.path() == Some(&path))
- .map(|doc| doc.id);
+ let id = self.document_by_path(&path).map(|doc| doc.id);
let id = if let Some(id) = id {
id
} else {
let mut doc = Document::open(&path, None, Some(&self.theme), Some(&self.syn_loader))?;
- // try to find a language server based on the language name
- let language_server = doc.language.as_ref().and_then(|language| {
- self.language_servers
- .get(language)
- .map_err(|e| {
- log::error!(
- "Failed to initialize the LSP for `{}` {{ {} }}",
- language.scope(),
- e
- )
- })
- .ok()
- });
-
- if let Some(language_server) = language_server {
- let language_id = doc
- .language()
- .and_then(|s| s.split('.').last()) // source.rust
- .map(ToOwned::to_owned)
- .unwrap_or_default();
-
- // TODO: this now races with on_init code if the init happens too quickly
- tokio::spawn(language_server.text_document_did_open(
- doc.url().unwrap(),
- doc.version(),
- doc.text(),
- language_id,
- ));
-
- doc.set_language_server(Some(language_server));
- }
+ let _ = Self::launch_language_server(&mut self.language_servers, &mut doc);
- let id = DocumentId(self.next_document_id);
- self.next_document_id += 1;
- doc.id = id;
- self.documents.insert(id, doc);
- id
+ self.new_document(doc)
};
self.switch(id, action);
@@ -432,11 +485,11 @@ impl Editor {
pub fn close_document(&mut self, doc_id: DocumentId, force: bool) -> anyhow::Result<()> {
let doc = match self.documents.get(&doc_id) {
Some(doc) => doc,
- None => anyhow::bail!("document does not exist"),
+ None => bail!("document does not exist"),
};
if !force && doc.is_modified() {
- anyhow::bail!(
+ bail!(
"buffer {:?} is modified",
doc.relative_path()
.map(|path| path.to_string_lossy().to_string())
@@ -469,7 +522,7 @@ impl Editor {
// If the document we removed was visible in all views, we will have no more views. We don't
// want to close the editor just for a simple buffer close, so we need to create a new view
// containing either an existing document, or a brand new document.
- if self.tree.views().peekable().peek().is_none() {
+ if self.tree.views().next().is_none() {
let doc_id = self
.documents
.iter()
@@ -554,8 +607,7 @@ impl Editor {
}
pub fn cursor(&self) -> (Option<Position>, CursorKind) {
- let view = view!(self);
- let doc = &self.documents[&view.doc];
+ let (view, doc) = current_ref!(self);
let cursor = doc
.selection(view.id)
.primary()
diff --git a/helix-view/src/gutter.rs b/helix-view/src/gutter.rs
new file mode 100644
index 00000000..86773c1d
--- /dev/null
+++ b/helix-view/src/gutter.rs
@@ -0,0 +1,95 @@
+use std::fmt::Write;
+
+use crate::{editor::Config, graphics::Style, Document, Theme, View};
+
+pub type GutterFn<'doc> = Box<dyn Fn(usize, bool, &mut String) -> Option<Style> + 'doc>;
+pub type Gutter =
+ for<'doc> fn(&'doc Document, &View, &Theme, &Config, bool, usize) -> GutterFn<'doc>;
+
+pub fn diagnostic<'doc>(
+ doc: &'doc Document,
+ _view: &View,
+ theme: &Theme,
+ _config: &Config,
+ _is_focused: bool,
+ _width: usize,
+) -> GutterFn<'doc> {
+ let warning = theme.get("warning");
+ let error = theme.get("error");
+ let info = theme.get("info");
+ let hint = theme.get("hint");
+ let diagnostics = doc.diagnostics();
+
+ Box::new(move |line: usize, _selected: bool, out: &mut String| {
+ use helix_core::diagnostic::Severity;
+ if let Some(diagnostic) = diagnostics.iter().find(|d| d.line == line) {
+ write!(out, "●").unwrap();
+ return Some(match diagnostic.severity {
+ Some(Severity::Error) => error,
+ Some(Severity::Warning) | None => warning,
+ Some(Severity::Info) => info,
+ Some(Severity::Hint) => hint,
+ });
+ }
+ None
+ })
+}
+
+pub fn line_number<'doc>(
+ doc: &'doc Document,
+ view: &View,
+ theme: &Theme,
+ config: &Config,
+ is_focused: bool,
+ width: usize,
+) -> GutterFn<'doc> {
+ let text = doc.text().slice(..);
+ let last_line = view.last_line(doc);
+ // Whether to draw the line number for the last line of the
+ // document or not. We only draw it if it's not an empty line.
+ let draw_last = text.line_to_byte(last_line) < text.len_bytes();
+
+ let linenr = theme.get("ui.linenr");
+ let linenr_select: Style = theme.try_get("ui.linenr.selected").unwrap_or(linenr);
+
+ let current_line = doc
+ .text()
+ .char_to_line(doc.selection(view.id).primary().cursor(text));
+
+ let config = config.line_number;
+
+ Box::new(move |line: usize, selected: bool, out: &mut String| {
+ if line == last_line && !draw_last {
+ write!(out, "{:>1$}", '~', width).unwrap();
+ Some(linenr)
+ } else {
+ use crate::editor::LineNumber;
+ let line = match config {
+ LineNumber::Absolute => line + 1,
+ LineNumber::Relative => {
+ if current_line == line {
+ line + 1
+ } else {
+ abs_diff(current_line, line)
+ }
+ }
+ };
+ let style = if selected && is_focused {
+ linenr_select
+ } else {
+ linenr
+ };
+ write!(out, "{:>1$}", line, width).unwrap();
+ Some(style)
+ }
+ })
+}
+
+#[inline(always)]
+const fn abs_diff(a: usize, b: usize) -> usize {
+ if a > b {
+ a - b
+ } else {
+ b - a
+ }
+}
diff --git a/helix-view/src/lib.rs b/helix-view/src/lib.rs
index 3e779356..a56c914d 100644
--- a/helix-view/src/lib.rs
+++ b/helix-view/src/lib.rs
@@ -5,6 +5,7 @@ pub mod clipboard;
pub mod document;
pub mod editor;
pub mod graphics;
+pub mod gutter;
pub mod info;
pub mod input;
pub mod keyboard;
@@ -12,8 +13,18 @@ pub mod theme;
pub mod tree;
pub mod view;
-#[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, Default, Debug)]
-pub struct DocumentId(usize);
+use std::num::NonZeroUsize;
+
+// uses NonZeroUsize so Option<DocumentId> use a byte rather than two
+#[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, Debug)]
+pub struct DocumentId(NonZeroUsize);
+
+impl Default for DocumentId {
+ fn default() -> DocumentId {
+ // Safety: 1 is non-zero
+ DocumentId(unsafe { NonZeroUsize::new_unchecked(1) })
+ }
+}
slotmap::new_key_type! {
pub struct ViewId;
diff --git a/helix-view/src/view.rs b/helix-view/src/view.rs
index 3066801b..78b3eb24 100644
--- a/helix-view/src/view.rs
+++ b/helix-view/src/view.rs
@@ -1,6 +1,10 @@
use std::borrow::Cow;
-use crate::{graphics::Rect, Document, DocumentId, ViewId};
+use crate::{
+ graphics::Rect,
+ gutter::{self, Gutter},
+ Document, DocumentId, ViewId,
+};
use helix_core::{
graphemes::{grapheme_width, RopeGraphemes},
line_ending::line_end_char_index,
@@ -60,6 +64,8 @@ impl JumpList {
}
}
+const GUTTERS: &[(Gutter, usize)] = &[(gutter::diagnostic, 1), (gutter::line_number, 5)];
+
#[derive(Debug)]
pub struct View {
pub id: ViewId,
@@ -83,10 +89,19 @@ impl View {
}
}
+ pub fn gutters(&self) -> &[(Gutter, usize)] {
+ GUTTERS
+ }
+
pub fn inner_area(&self) -> Rect {
- // TODO: not ideal
- const OFFSET: u16 = 7; // 1 diagnostic + 5 linenr + 1 gutter
- self.area.clip_left(OFFSET).clip_bottom(1) // -1 for statusline
+ // TODO: cache this
+ let offset = self
+ .gutters()
+ .iter()
+ .map(|(_, width)| *width as u16)
+ .sum::<u16>()
+ + 1; // +1 for some space between gutters and line
+ self.area.clip_left(offset).clip_bottom(1) // -1 for statusline
}
//
@@ -296,6 +311,7 @@ mod tests {
use super::*;
use helix_core::Rope;
const OFFSET: u16 = 7; // 1 diagnostic + 5 linenr + 1 gutter
+ // const OFFSET: u16 = GUTTERS.iter().map(|(_, width)| *width as u16).sum();
#[test]
fn test_text_pos_at_screen_coords() {