mod completion; pub(crate) mod editor; mod info; mod markdown; pub mod menu; pub mod overlay; mod picker; mod popup; mod prompt; mod spinner; mod statusline; mod text; pub use completion::Completion; pub use editor::EditorView; pub use markdown::Markdown; pub use menu::Menu; pub use picker::{FileLocation, FilePicker, Picker}; pub use popup::Popup; pub use prompt::{Prompt, PromptEvent}; pub use spinner::{ProgressSpinners, Spinner}; pub use text::Text; use helix_core::regex::Regex; use helix_core::regex::RegexBuilder; use helix_view::{Document, Editor, View}; use std::path::PathBuf; pub fn prompt( cx: &mut crate::commands::Context, prompt: std::borrow::Cow<'static, str>, history_register: Option, completion_fn: impl FnMut(&Editor, &str) -> Vec + 'static, callback_fn: impl FnMut(&mut crate::compositor::Context, &str, PromptEvent) + 'static, ) { show_prompt( cx, Prompt::new(prompt, history_register, completion_fn, callback_fn), ); } pub fn prompt_with_input( cx: &mut crate::commands::Context, prompt: std::borrow::Cow<'static, str>, input: String, history_register: Option, completion_fn: impl FnMut(&Editor, &str) -> Vec + 'static, callback_fn: impl FnMut(&mut crate::compositor::Context, &str, PromptEvent) + 'static, ) { show_prompt( cx, Prompt::new(prompt, history_register, completion_fn, callback_fn).with_line(input), ); } fn show_prompt(cx: &mut crate::commands::Context, mut prompt: Prompt) { // Calculate initial completion prompt.recalculate_completion(cx.editor); cx.push_layer(Box::new(prompt)); } pub fn regex_prompt( cx: &mut crate::commands::Context, prompt: std::borrow::Cow<'static, str>, history_register: Option, completion_fn: impl FnMut(&Editor, &str) -> Vec + 'static, fun: impl Fn(&mut View, &mut Document, Regex, PromptEvent) + 'static, ) { let (view, doc) = current!(cx.editor); let doc_id = view.doc; let snapshot = doc.selection(view.id).clone(); let offset_snapshot = view.offset; let config = cx.editor.config(); let mut prompt = Prompt::new( prompt, history_register, completion_fn, move |cx: &mut crate::compositor::Context, input: &str, event: PromptEvent| { match event { PromptEvent::Abort => { let (view, doc) = current!(cx.editor); doc.set_selection(view.id, snapshot.clone()); view.offset = offset_snapshot; } PromptEvent::Update | PromptEvent::Validate => { // skip empty input if input.is_empty() { return; } let case_insensitive = if config.search.smart_case { !input.chars().any(char::is_uppercase) } else { false }; match RegexBuilder::new(input) .case_insensitive(case_insensitive) .multi_line(true) .build() { Ok(regex) => { let (view, doc) = current!(cx.editor); // revert state to what it was before the last update doc.set_selection(view.id, snapshot.clone()); if event == PromptEvent::Validate { // Equivalent to push_jump to store selection just before jump view.jumps.push((doc_id, snapshot.clone())); } fun(view, doc, regex, event); view.ensure_cursor_in_view(doc, config.scrolloff); } Err(_err) => (), // TODO: mark command line as error } } } }, ); // Calculate initial completion prompt.recalculate_completion(cx.editor); // prompt cx.push_layer(Box::new(prompt)); } pub fn file_picker(root: PathBuf, config: &helix_view::editor::Config) -> FilePicker { use ignore::{types::TypesBuilder, WalkBuilder}; use std::time::Instant; let now = Instant::now(); let mut walk_builder = WalkBuilder::new(&root); walk_builder .hidden(config.file_picker.hidden) .parents(config.file_picker.parents) .ignore(config.file_picker.ignore) .follow_links(config.file_picker.follow_symlinks) .git_ignore(config.file_picker.git_ignore) .git_global(config.file_picker.git_global) .git_exclude(config.file_picker.git_exclude) .max_depth(config.file_picker.max_depth) // We always want to ignore the .git directory, otherwise if // `ignore` is turned off above, we end up with a lot of noise // in our picker. .filter_entry(|entry| entry.file_name() != ".git"); // We want to exclude files that the editor can't handle yet let mut type_builder = TypesBuilder::new(); type_builder .add( "compressed", "*.{zip,gz,bz2,zst,lzo,sz,tgz,tbz2,lz,lz4,lzma,lzo,z,Z,xz,7z,rar,cab}", ) .expect("Invalid type definition"); type_builder.negate("all"); let excluded_types = type_builder .build() .expect("failed to build excluded_types"); walk_builder.types(excluded_types); // We want files along with their modification date for sorting let files = walk_builder.build().filter_map(|entry| { let entry = entry.ok()?; // This is faster than entry.path().is_dir() since it uses cached fs::Metadata fetched by ignore/walkdir let is_dir = entry.file_type().map_or(false, |ft| ft.is_dir()); if is_dir { // Will give a false positive if metadata cannot be read (eg. permission error) None } else { Some(entry.into_path()) } }); // Cap the number of files if we aren't in a git project, preventing // hangs when using the picker in your home directory let files: Vec<_> = if root.join(".git").is_dir() { files.collect() } else { // const MAX: usize = 8192; const MAX: usize = 100_000; files.take(MAX).collect() }; log::debug!("file_picker init {:?}", Instant::now().duration_since(now)); FilePicker::new( files, root, move |cx, path: &PathBuf, action| { if let Err(e) = cx.editor.open(path, action) { let err = if let Some(err) = e.source() { format!("{}", err) } else { format!("unable to open \"{}\"", path.display()) }; cx.editor.set_error(err); } }, |_editor, path| Some((path.clone(), None)), ) } pub mod completers { use crate::ui::prompt::Completion; use fuzzy_matcher::skim::SkimMatcherV2 as Matcher; use fuzzy_matcher::FuzzyMatcher; use helix_view::document::SCRATCH_BUFFER_NAME; use helix_view::theme; use helix_view::{editor::Config, Editor}; use once_cell::sync::Lazy; use std::borrow::Cow; use std::cmp::Reverse; pub type Completer = fn(&Editor, &str) -> Vec; pub fn none(_editor: &Editor, _input: &str) -> Vec { Vec::new() } pub fn buffer(editor: &Editor, input: &str) -> Vec { let mut names: Vec<_> = editor .documents .iter() .map(|(_id, doc)| { let name = doc .relative_path() .map(|p| p.display().to_string()) .unwrap_or_else(|| String::from(SCRATCH_BUFFER_NAME)); ((0..), Cow::from(name)) }) .collect(); let matcher = Matcher::default(); let mut matches: Vec<_> = names .into_iter() .filter_map(|(_range, name)| { matcher.fuzzy_match(&name, input).map(|score| (name, score)) }) .collect(); matches.sort_unstable_by_key(|(_file, score)| Reverse(*score)); names = matches.into_iter().map(|(name, _)| ((0..), name)).collect(); names } pub fn theme(_editor: &Editor, input: &str) -> Vec { let mut names = theme::Loader::read_names(&helix_loader::runtime_dir().join("themes")); names.extend(theme::Loader::read_names( &helix_loader::config_dir().join("themes"), )); names.push("default".into()); names.push("base16_default".into()); names.sort(); let mut names: Vec<_> = names .into_iter() .map(|name| ((0..), Cow::from(name))) .collect(); let matcher = Matcher::default(); let mut matches: Vec<_> = names .into_iter() .filter_map(|(_range, name)| { matcher.fuzzy_match(&name, input).map(|score| (name, score)) }) .collect(); matches.sort_unstable_by(|(name1, score1), (name2, score2)| { (Reverse(*score1), name1).cmp(&(Reverse(*score2), name2)) }); names = matches.into_iter().map(|(name, _)| ((0..), name)).collect(); names } pub fn setting(_editor: &Editor, input: &str) -> Vec { static KEYS: Lazy> = Lazy::new(|| { serde_json::json!(Config::default()) .as_object() .unwrap() .keys() .cloned() .collect() }); let matcher = Matcher::default(); let mut matches: Vec<_> = KEYS .iter() .filter_map(|name| matcher.fuzzy_match(name, input).map(|score| (name, score))) .collect(); matches.sort_unstable_by_key(|(_file, score)| Reverse(*score)); matches .into_iter() .map(|(name, _)| ((0..), name.into())) .collect() } pub fn filename(editor: &Editor, input: &str) -> Vec { filename_impl(editor, input, |entry| { let is_dir = entry.file_type().map_or(false, |entry| entry.is_dir()); if is_dir { FileMatch::AcceptIncomplete } else { FileMatch::Accept } }) } pub fn language(editor: &Editor, input: &str) -> Vec { let matcher = Matcher::default(); let mut matches: Vec<_> = editor .syn_loader .language_configs() .filter_map(|config| { matcher .fuzzy_match(&config.language_id, input) .map(|score| (&config.language_id, score)) }) .collect(); matches.sort_unstable_by(|(language1, score1), (language2, score2)| { (Reverse(*score1), language1).cmp(&(Reverse(*score2), language2)) }); matches .into_iter() .map(|(language, _score)| ((0..), language.clone().into())) .collect() } pub fn directory(editor: &Editor, input: &str) -> Vec { filename_impl(editor, input, |entry| { let is_dir = entry.file_type().map_or(false, |entry| entry.is_dir()); if is_dir { FileMatch::Accept } else { FileMatch::Reject } }) } #[derive(Copy, Clone, PartialEq, Eq)] enum FileMatch { /// Entry should be ignored Reject, /// Entry is usable but can't be the end (for instance if the entry is a directory and we /// try to match a file) AcceptIncomplete, /// Entry is usable and can be the end of the match Accept, } // TODO: we could return an iter/lazy thing so it can fetch as many as it needs. fn filename_impl(editor: &Editor, input: &str, filter_fn: F) -> Vec where F: Fn(&ignore::DirEntry) -> FileMatch, { // Rust's filename handling is really annoying. use ignore::WalkBuilder; use std::path::Path; let is_tilde = input.starts_with('~') && input.len() == 1; let path = helix_core::path::expand_tilde(Path::new(input)); let (dir, file_name) = if input.ends_with(std::path::MAIN_SEPARATOR) { (path, None) } else { let file_name = path .file_name() .and_then(|file| file.to_str().map(|path| path.to_owned())); let path = match path.parent() { Some(path) if !path.as_os_str().is_empty() => path.to_path_buf(), // Path::new("h")'s parent is Some("")... _ => std::env::current_dir().expect("couldn't determine current directory"), }; (path, file_name) }; let end = input.len()..; let mut files: Vec<_> = WalkBuilder::new(&dir) .hidden(false) .follow_links(editor.config().file_picker.follow_symlinks) .max_depth(Some(1)) .build() .filter_map(|file| { file.ok().and_then(|entry| { let fmatch = filter_fn(&entry); if fmatch == FileMatch::Reject { return None; } //let is_dir = entry.file_type().map_or(false, |entry| entry.is_dir()); let path = entry.path(); let mut path = if is_tilde { // if it's a single tilde an absolute path is displayed so that when `TAB` is pressed on // one of the directories the tilde will be replaced with a valid path not with a relative // home directory name. // ~ -> -> /home/user // ~/ -> -> ~/first_entry path.to_path_buf() } else { path.strip_prefix(&dir).unwrap_or(path).to_path_buf() }; if fmatch == FileMatch::AcceptIncomplete { path.push(""); } let path = path.to_str()?.to_owned(); Some((end.clone(), Cow::from(path))) }) }) // TODO: unwrap or skip .filter(|(_, path)| !path.is_empty()) // TODO .collect(); // if empty, return a list of dirs and files in current dir if let Some(file_name) = file_name { let matcher = Matcher::default(); // inefficient, but we need to calculate the scores, filter out None, then sort. let mut matches: Vec<_> = files .into_iter() .filter_map(|(_range, file)| { matcher .fuzzy_match(&file, &file_name) .map(|score| (file, score)) }) .collect(); let range = (input.len().saturating_sub(file_name.len()))..; matches.sort_unstable_by(|(file1, score1), (file2, score2)| { (Reverse(*score1), file1).cmp(&(Reverse(*score2), file2)) }); files = matches .into_iter() .map(|(file, _)| (range.clone(), file)) .collect(); // TODO: complete to longest common match } else { files.sort_unstable_by(|(_, path1), (_, path2)| path1.cmp(path2)); } files } }