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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_core::register::Registers;
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, &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,
|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) = current!(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!(editor);
let registers = &mut editor.registers;
// revert state to what it was before the last update
// TODO: also revert text
doc.set_selection(view.id, snapshot.clone());
fun(view, doc, registers, regex);
view.ensure_cursor_in_view(doc);
}
Err(_err) => (), // TODO: mark command line as error
}
}
}
},
)
}
pub fn file_picker(root: PathBuf) -> Picker<PathBuf> {
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,
});
let files = if root.join(".git").is_dir() {
files.collect()
} else {
const MAX: usize = 8192;
files.take(MAX).collect()
};
Picker::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| {
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<Completion>;
// TODO: we could return an iter/lazy thing so it can fetch as many as it needs.
pub fn filename(input: &str) -> Vec<Completion> {
// Rust's filename handling is really annoying.
use ignore::WalkBuilder;
use std::path::{Path, PathBuf};
let is_tilde = input.starts_with('~') && input.len() == 1;
let path = helix_view::document::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.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 = 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.
// ~ -> <TAB> -> /home/user
// ~/ -> <TAB> -> ~/first_entry
path.to_path_buf()
} else {
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().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
}
}
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