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|
use std;
use std::fs;
use std::ffi;
use std::path;
use std::time;
use joshuto::sort;
#[derive(Debug)]
pub struct JoshutoMetadata {
pub len: u64,
pub modified: time::SystemTime,
pub permissions: fs::Permissions,
pub file_type: fs::FileType,
}
impl JoshutoMetadata {
pub fn from(metadata: &fs::Metadata) -> Result<Self, std::io::Error>
{
let len = metadata.len();
let modified = metadata.modified()?;
let permissions = metadata.permissions();
let file_type = metadata.file_type();
Ok(JoshutoMetadata {
len,
modified,
permissions,
file_type
})
}
}
#[derive(Debug)]
pub struct JoshutoDirEntry {
pub file_name: ffi::OsString,
pub file_name_as_string: String,
pub path: path::PathBuf,
pub metadata: JoshutoMetadata,
pub selected: bool,
pub marked: bool,
}
impl JoshutoDirEntry {
pub fn from(direntry: &fs::DirEntry) -> Result<Self, std::io::Error>
{
let file_name = direntry.file_name();
let file_name_as_string: String = file_name.clone().into_string().unwrap();
let path = direntry.path();
let metadata = direntry.metadata()?;
let metadata = JoshutoMetadata::from(&metadata)?;
let dir_entry = JoshutoDirEntry {
file_name,
file_name_as_string,
path,
metadata,
selected: false,
marked: false,
};
Ok(dir_entry)
}
}
#[derive(Debug)]
pub struct JoshutoDirList {
pub index: i32,
pub path: path::PathBuf,
pub update_needed: bool,
pub metadata: JoshutoMetadata,
pub contents: Vec<JoshutoDirEntry>,
pub selected: usize
}
impl JoshutoDirList {
pub fn new(path: path::PathBuf, sort_type: &sort::SortType) -> Result<Self, std::io::Error>
{
let mut contents = Self::read_dir_list(path.as_path(), sort_type)?;
contents.sort_by(&sort_type.compare_func());
let index = if contents.len() > 0 {
0
} else {
-1
};
let metadata = fs::metadata(&path)?;
let metadata = JoshutoMetadata::from(&metadata)?;
Ok(JoshutoDirList {
index,
path,
update_needed: false,
metadata,
contents,
selected: 0,
})
}
pub fn need_update(&self) -> bool
{
if self.update_needed {
return true;
}
if let Ok(metadata) = std::fs::metadata(&self.path) {
if let Ok(modified) = metadata.modified() {
return self.metadata.modified < modified;
}
}
return true;
}
pub fn update(&mut self, sort_type: &sort::SortType)
{
let sort_func = sort_type.compare_func();
self.update_needed = false;
if let Ok(mut dir_contents) = Self::read_dir_list(&self.path, sort_type) {
dir_contents.sort_by(&sort_func);
if dir_contents.len() == 0 {
self.index = -1;
} else if self.index >= dir_contents.len() as i32 {
self.index = dir_contents.len() as i32 - 1;
} else if self.index >= 0 && (self.index as usize) < self.contents.len() {
let index = self.index;
let curr_file_name = &self.contents[index as usize].file_name;
for (i, entry) in dir_contents.iter().enumerate() {
if *curr_file_name == entry.file_name {
self.index = i as i32;
break;
}
}
} else {
self.index = 0;
}
self.contents = dir_contents;
}
if let Ok(metadata) = std::fs::metadata(&self.path) {
if let Ok(metadata) = JoshutoMetadata::from(&metadata) {
self.metadata = metadata;
}
}
}
fn read_dir_list(path : &path::Path, sort_type: &sort::SortType)
-> Result<Vec<JoshutoDirEntry>, std::io::Error>
{
let filter_func = sort_type.filter_func();
let results = fs::read_dir(path)?;
let result_vec : Vec<JoshutoDirEntry> = results
.filter_map(filter_func)
.collect();
Ok(result_vec)
}
pub fn get_curr_entry(&self) -> Option<&JoshutoDirEntry>
{
self.get_dir_entry(self.index)
}
fn get_dir_entry(&self, index: i32) -> Option<&JoshutoDirEntry>
{
if index >= 0 && (index as usize) < self.contents.len() {
Some(&self.contents[index as usize])
} else {
None
}
}
pub fn curr_toggle_select(&mut self)
{
let index = self.index;
self.toggle_select(index);
}
fn toggle_select(&mut self, index: i32) {
if index >= 0 && (index as usize) < self.contents.len() {
let tmp_bool = !self.contents[index as usize].selected;
self.contents[index as usize].selected = tmp_bool;
if tmp_bool {
self.selected = self.selected + 1;
} else {
self.selected = self.selected - 1;
}
}
}
}
|
