mod completion; pub(crate) mod editor; mod info; mod markdown; mod menu; mod picker; mod popup; mod prompt; mod spinner; mod text; pub use completion::Completion; pub use editor::EditorView; pub use markdown::Markdown; pub use menu::Menu; pub use picker::{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::register::Registers; use helix_view::{Document, Editor, View}; use std::path::PathBuf; pub fn regex_prompt( cx: &mut crate::commands::Context, prompt: String, fun: impl Fn(&mut View, &mut Document, &mut Registers, Regex) + 'static, ) -> Prompt { let (view, doc) = current!(cx.editor); let view_id = view.id; let snapshot = doc.selection(view_id).clone(); Prompt::new( prompt, None, |_input: &str| Vec::new(), // this is fine because Vec::new() doesn't allocate 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()); } PromptEvent::Validate => { // TODO: push_jump to store selection just before jump } PromptEvent::Update => { // skip empty input, TODO: trigger default if input.is_empty() { return; } match Regex::new(input) { Ok(regex) => { let (view, doc) = current!(cx.editor); let registers = &mut cx.editor.registers; // revert state to what it was before the last update doc.set_selection(view.id, snapshot.clone()); fun(view, doc, registers, regex); view.ensure_cursor_in_view(doc, cx.editor.config.scrolloff); } Err(_err) => (), // TODO: mark command line as error } } } }, ) } pub fn file_picker(root: PathBuf) -> FilePicker { use ignore::Walk; use std::time; let files = Walk::new(&root).filter_map(|entry| { let entry = entry.ok()?; // Path::is_dir() traverses symlinks, so we use it over DirEntry::is_dir if entry.path().is_dir() { // Will give a false positive if metadata cannot be read (eg. permission error) return None; } let time = entry.metadata().map_or(time::UNIX_EPOCH, |metadata| { metadata .accessed() .or_else(|_| metadata.modified()) .or_else(|_| metadata.created()) .unwrap_or(time::UNIX_EPOCH) }); Some((entry.into_path(), time)) }); let mut files: Vec<_> = if root.join(".git").is_dir() { files.collect() } else { const MAX: usize = 8192; files.take(MAX).collect() }; files.sort_by_key(|file| std::cmp::Reverse(file.1)); let files = files.into_iter().map(|(path, _)| path).collect(); FilePicker::new( files, move |path: &PathBuf| { // format_fn path.strip_prefix(&root) .unwrap_or(path) .to_str() .unwrap() .into() }, move |editor: &mut Editor, path: &PathBuf, action| { editor .open(path.into(), action) .expect("editor.open failed"); }, |_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::theme; use std::borrow::Cow; use std::cmp::Reverse; pub type Completer = fn(&str) -> Vec; pub fn theme(input: &str) -> Vec { let mut names = theme::Loader::read_names(&helix_core::runtime_dir().join("themes")); names.extend(theme::Loader::read_names( &helix_core::config_dir().join("themes"), )); names.push("default".into()); 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_key(|(_file, score)| Reverse(*score)); names = matches.into_iter().map(|(name, _)| ((0..), name)).collect(); names } pub fn filename(input: &str) -> Vec { filename_impl(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 directory(input: &str) -> Vec { filename_impl(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(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('/') { (path, None) } else { let file_name = path .file_name() .map(|file| file.to_str().unwrap().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) .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().unwrap().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_key(|(_file, score)| Reverse(*score)); files = matches .into_iter() .map(|(file, _)| (range.clone(), file)) .collect(); // TODO: complete to longest common match } files } }