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use { Color, InnerWindow, Window, List, Entry, Label }; use traits::{ Place, Text, Click }; use std::{fs, io}; use std::cell::RefCell; use std::cmp::Ordering; use std::ops::Deref; use std::path::{Path, PathBuf}; use std::rc::Rc; #[derive(Clone, Debug, Eq, PartialEq)] struct FolderItem { path: PathBuf, name: String, dir: bool, } impl Ord for FolderItem { fn cmp(&self, other: &Self) -> Ordering { if self.dir && ! other.dir { Ordering::Less } else if ! self.dir && other.dir { Ordering::Greater } else { self.name.cmp(&other.name) } } } impl PartialOrd for FolderItem { fn partial_cmp(&self, other: &Self) -> Option<Ordering> { Some(self.cmp(other)) } } impl FolderItem { fn scan<P: AsRef<Path>>(path: P) -> io::Result<Vec<Result<Self, String>>> { let canon = path.as_ref().canonicalize()?; let mut items = vec![]; if let Some(parent) = canon.parent() { items.push(Ok(FolderItem { path: parent.to_owned(), name: "..".to_string(), dir: true, })); } for entry_res in fs::read_dir(&canon)? { let item = match entry_res { Ok(entry) => match entry.file_name().into_string() { Ok(name) => match entry.file_type() { Ok(file_type) => Ok(FolderItem { path: entry.path(), name: name, dir: file_type.is_dir(), }), Err(err) => Err(format!("{}", err)) }, Err(os_str) => Err(format!("Invalid filename: {:?}", os_str)) }, Err(err) => Err(format!("{}", err)) }; items.push(item); } items.sort(); Ok(items) } } pub struct FileDialog { pub title: String, pub path: PathBuf, pub hidden: bool, } impl FileDialog { pub fn new() -> Self { FileDialog { title: "File Dialog".to_string(), path: PathBuf::from("."), hidden: false, } } pub fn exec(&self) -> Option<PathBuf> { let path_opt = Rc::new(RefCell::new( Some(self.path.clone()) )); let w = 644; let h = 484; let mut orb_window = Some(InnerWindow::new(-1, -1, w, h, &self.title).unwrap()); loop { let path = match path_opt.borrow_mut().take() { Some(path) => if ! path.is_dir() { return Some(path); } else { path }, None => return None }; let mut window = Box::new(Window::from_inner(orb_window.take().unwrap())); let list = List::new(); list.position(2, 2).size(w - 4, h - 4); match FolderItem::scan(&path) { Ok(items) => for item_res in items { match item_res { Ok(item) => if self.hidden || ! item.name.starts_with(".") || item.name == ".." { let mut name = item.name.clone(); if item.dir { name.push('/'); } let entry = Entry::new(24); let label = Label::new(); label.position(2, 2).size(w - 8, 20).text_offset(2, 2); label.bg.set(Color::rgb(255, 255, 255)); label.text(name); entry.add(&label); let window = window.deref() as *const Window; let path_opt = path_opt.clone(); entry.on_click(move |_, _| { *path_opt.borrow_mut() = Some(item.path.clone()); unsafe { (*window).close(); } }); list.push(&entry); }, Err(err) => { let entry = Entry::new(24); let label = Label::new(); label.position(2, 2).size(w - 8, 20).text_offset(2, 2); label.bg.set(Color::rgb(242, 222, 222)); label.text(err); entry.add(&label); list.push(&entry); } } }, Err(err) => { let entry = Entry::new(24); let label = Label::new(); label.position(2, 2).size(w - 8, 20).text_offset(2, 2); label.bg.set(Color::rgb(242, 222, 222)); label.text(format!("{}", err)); entry.add(&label); list.push(&entry); } } window.add(&list); window.exec(); orb_window = Some(window.into_inner()); } } }