mod completion; mod editor; mod markdown; mod menu; mod picker; mod popup; mod prompt; mod text; pub use completion::Completion; pub use editor::EditorView; pub use markdown::Markdown; pub use menu::Menu; pub use picker::Picker; pub use popup::Popup; pub use prompt::{Prompt, PromptEvent}; pub use text::Text; pub use tui::layout::Rect; pub use tui::style::{Color, Modifier, Style}; use helix_core::regex::Regex; use helix_view::{Document, Editor, View}; use std::path::{Path, PathBuf}; pub fn regex_prompt( cx: &mut crate::commands::Context, prompt: String, fun: impl Fn(&mut View, &mut Document, Regex) + 'static, ) -> Prompt { let view_id = cx.view().id; let snapshot = cx.doc().selection(view_id).clone(); Prompt::new( prompt, |input: &str| Vec::new(), // this is fine because Vec::new() doesn't allocate move |editor: &mut Editor, input: &str, event: PromptEvent| { match event { PromptEvent::Abort => { // TODO: also revert text let (view, doc) = editor.current(); 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) = editor.current(); // revert state to what it was before the last update // TODO: also revert text doc.set_selection(view.id, snapshot.clone()); fun(view, doc, regex); view.ensure_cursor_in_view(doc); } Err(_err) => (), // TODO: mark command line as error } } } }, ) } pub fn file_picker(root: PathBuf) -> Picker { use ignore::Walk; let files = Walk::new(root.clone()).filter_map(|entry| match entry { Ok(entry) => { // filter dirs, but we might need special handling for symlinks! if !entry.file_type().map_or(false, |entry| entry.is_dir()) { Some(entry.into_path()) } else { None } } Err(_err) => None, }); const MAX: usize = 2048; Picker::new( files.take(MAX).collect(), move |path: &PathBuf| { // format_fn path.strip_prefix(&root) .unwrap_or(path) .to_str() .unwrap() .into() }, move |editor: &mut Editor, path: &PathBuf, action| { let document_id = editor .open(path.into(), action) .expect("editor.open failed"); }, ) } pub mod completers { use crate::ui::prompt::Completion; use std::borrow::Cow; pub type Completer = fn(&str) -> Vec; // TODO: we could return an iter/lazy thing so it can fetch as many as it needs. pub fn filename(input: &str) -> Vec { // Rust's filename handling is really annoying. use ignore::WalkBuilder; use std::path::{Path, PathBuf}; let path = Path::new(input); let (dir, file_name) = if input.ends_with('/') { (path.into(), 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.clone()) .max_depth(Some(1)) .build() .filter_map(|file| { file.ok().map(|entry| { let is_dir = entry.file_type().map_or(false, |entry| entry.is_dir()); let path = entry.path(); let mut path = path.strip_prefix(&dir).unwrap_or(path).to_path_buf(); if is_dir { path.push(""); } let path = path.to_str().unwrap().to_owned(); (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 { use fuzzy_matcher::skim::SkimMatcherV2 as Matcher; use fuzzy_matcher::FuzzyMatcher; use std::cmp::Reverse; 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() - 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 } }