..

core/src/files/files.rs

@@ -1,28 +1,27 @@
-use std::{collections::{BTreeMap, BTreeSet}, ops::Range, path::{Path, PathBuf}};
+use std::{collections::{BTreeMap, BTreeSet}, mem, ops::Deref, path::{Path, PathBuf}};
 
 use anyhow::Result;
 use config::MANAGER;
 use tokio::fs;
 
-use super::{File, FilesSorter, NonHiddenFiles};
+use super::{File, FilesSorter};
 
 pub struct Files {
 	items:  Vec<File>,
-	length: usize,
+	hidden: Vec<File>,
 
 	sizes:    BTreeMap<PathBuf, u64>,
 	selected: BTreeSet<PathBuf>,
 
 	pub sorter:  FilesSorter,
-	// TODO: XXX
-	pub show_hidden: bool,
+	show_hidden: bool,
 }
 
 impl Default for Files {
 	fn default() -> Self {
 		Self {
 			items:  Default::default(),
-			length: Default::default(),
+			hidden: Default::default(),
 
 			sizes:    Default::default(),
 			selected: Default::default(),
@@ -33,6 +32,12 @@ impl Default for Files {
 	}
 }
 
+impl Deref for Files {
+	type Target = Vec<File>;
+
+	fn deref(&self) -> &Self::Target { &self.items }
+}
+
 impl Files {
 	pub async fn read(paths: &[impl AsRef<Path>]) -> Vec<File> {
 		let mut items = Vec::with_capacity(paths.len());
@@ -54,7 +59,9 @@ impl Files {
 		}
 		Ok(items)
 	}
+}
 
+impl Files {
 	#[inline]
 	pub fn select(&mut self, path: &Path, state: Option<bool>) -> bool {
 		let old = self.selected.contains(path);
@@ -104,21 +111,31 @@ impl Files {
 	}
 
 	#[inline]
-	pub fn set_show_hidden(&mut self, state: bool) -> bool {
-		if self.show_hidden == state {
+	pub fn set_show_hidden(&mut self, state: Option<bool>) -> bool {
+		let state = state.unwrap_or(!self.show_hidden);
+		if state == self.show_hidden {
+			return false;
+		} else if state && self.hidden.is_empty() {
 			return false;
 		}
 
-		self.length =
-			if state { self.items.len() } else { self.items.iter().filter(|f| !f.is_hidden).count() };
+		if state {
+			self.items.append(&mut self.hidden);
+			self.sorter.sort(&mut self.items);
+		} else {
+			let items = mem::take(&mut self.items);
+			(self.hidden, self.items) = items.into_iter().partition(|f| f.is_hidden);
+		}
+
 		self.show_hidden = state;
 		true
 	}
 
 	pub fn update_read(&mut self, mut items: Vec<File>) -> bool {
+		if !self.show_hidden {
+			(self.hidden, items) = items.into_iter().partition(|f| f.is_hidden);
+		}
 		self.sorter.sort(&mut items);
-		self.length =
-			if self.show_hidden { items.len() } else { items.iter().filter(|f| !f.is_hidden).count() };
 		self.items = items;
 		true
 	}
@@ -131,15 +148,16 @@ impl Files {
 
 	pub fn update_search(&mut self, items: Vec<File>) -> bool {
 		if !items.is_empty() {
-			self.length = items.len();
+			let (hidden, items): (Vec<_>, Vec<_>) = items.into_iter().partition(|f| f.is_hidden);
 			self.items.extend(items);
+			self.hidden.extend(hidden);
 			self.sorter.sort(&mut self.items);
 			return true;
 		}
 
 		if !self.items.is_empty() {
-			self.length = 0;
 			self.items.clear();
+			self.hidden.clear();
 			return true;
 		}
 
@@ -148,23 +166,7 @@ impl Files {
 }
 
 impl Files {
-	#[inline]
-	pub fn len(&self) -> usize { self.length }
-
-	#[inline]
-	pub fn iter<'a>(&'a self) -> Box<dyn Iterator<Item = &'a File> + 'a> {
-		if self.show_hidden {
-			return Box::new(self.items.iter());
-		}
-		Box::new(NonHiddenFiles::new(&self.items, self.length))
-	}
-
-	#[inline]
-	pub fn range(&self, range: Range<usize>) -> Vec<&File> {
-		self.iter().skip(range.start).take(range.end - range.start).collect()
-	}
-
-	pub fn pick<'a>(&'a self, indices: &BTreeSet<usize>) -> Vec<&'a File> {
+	pub fn pick(&self, indices: &BTreeSet<usize>) -> Vec<&File> {
 		let mut items = Vec::with_capacity(indices.len());
 		for (i, item) in self.iter().enumerate() {
 			if indices.contains(&i) {
@@ -185,7 +187,9 @@ impl Files {
 			return Default::default();
 		}
 
-		let mut items = Vec::with_capacity(self.selected.len() + pending.len());
+		let mut items =
+			Vec::with_capacity(self.selected.len() + if !unset { pending.len() } else { 0 });
+
 		for (i, item) in self.iter().enumerate() {
 			let b = self.selected.contains(&item.path);
 			if !unset && (b || pending.contains(&i)) {
@@ -208,3 +212,8 @@ impl Files {
 		self.iter().any(|f| self.selected.contains(&f.path))
 	}
 }
+
+impl Files {
+	#[inline]
+	pub fn show_hidden(&self) -> bool { self.show_hidden }
+}

core/src/files/iterator.rs

@@ -1,29 +0,0 @@
-use super::File;
-
-pub struct NonHiddenFiles<'a> {
-	items: &'a Vec<File>,
-
-	cur: usize,
-	max: usize,
-}
-
-impl<'a> NonHiddenFiles<'a> {
-	pub fn new(items: &'a Vec<File>, max: usize) -> Self { Self { items, cur: 0, max } }
-}
-
-impl<'a> Iterator for NonHiddenFiles<'a> {
-	type Item = &'a File;
-
-	fn next(&mut self) -> Option<Self::Item> {
-		while self.cur < self.items.len() {
-			let item = &self.items[self.cur];
-			self.cur += 1;
-			if !item.is_hidden {
-				return Some(&item);
-			}
-		}
-		None
-	}
-
-	fn size_hint(&self) -> (usize, Option<usize>) { (self.max, Some(self.max)) }
-}

core/src/files/mod.rs

@@ -1,11 +1,9 @@
 mod file;
 mod files;
-mod iterator;
 mod op;
 mod sorter;
 
 pub use file::*;
 pub use files::*;
-pub use iterator::*;
 pub use op::*;
 pub use sorter::*;

core/src/manager/folder.rs

@@ -93,25 +93,23 @@ impl Folder {
 	}
 
 	pub fn hidden(&mut self, show: Option<bool>) -> bool {
-		if show.is_none() || self.files.show_hidden != show.unwrap() {
-			self.files.show_hidden = !self.files.show_hidden;
+		if self.files.set_show_hidden(show) {
 			emit!(Refresh);
 		}
-
 		false
 	}
 
 	#[inline]
-	pub fn window(&self) -> Vec<&File> {
+	pub fn window(&self) -> &[File] {
 		let end = (self.offset + MANAGER.layout.folder_height()).min(self.files.len());
-		self.files.range(self.offset..end)
+		&self.files[self.offset..end]
 	}
 
 	#[inline]
-	pub fn window_for(&self, offset: usize) -> Vec<&File> {
+	pub fn window_for(&self, offset: usize) -> &[File] {
 		let start = offset.min(self.files.len().saturating_sub(1));
 		let end = (offset + MANAGER.layout.folder_height()).min(self.files.len());
-		self.files.range(start..end)
+		&self.files[start..end]
 	}
 
 	pub fn hover(&mut self, path: &Path) -> bool {
@@ -136,13 +134,13 @@ impl Folder {
 	#[inline]
 	pub fn cursor(&self) -> usize { self.cursor }
 
-	pub fn paginate(&self) -> Vec<&File> {
+	pub fn paginate(&self) -> &[File] {
 		let len = self.files.len();
 		let limit = MANAGER.layout.folder_height();
 
 		let start = (self.page * limit).min(len.saturating_sub(1));
 		let end = (start + limit).min(len);
-		self.files.range(start..end)
+		&self.files[start..end]
 	}
 
 	pub fn rect_current(&self, path: &Path) -> Option<Rect> {

core/src/manager/tab.rs

@@ -230,7 +230,7 @@ impl Tab {
 		}
 
 		let cwd = self.current.cwd.clone();
-		let hidden = self.current.files.show_hidden;
+		let hidden = self.current.files.show_hidden();
 
 		self.search = Some(tokio::spawn(async move {
 			let subject = emit!(Input(InputOpt::top("Search:"))).await?;

core/src/tasks/tasks.rs

@@ -227,9 +227,9 @@ impl Tasks {
 	}
 
 	#[inline]
-	pub fn precache_mime(&self, targets: Vec<&File>, mimetype: &HashMap<PathBuf, String>) -> bool {
+	pub fn precache_mime(&self, targets: &[File], mimetype: &HashMap<PathBuf, String>) -> bool {
 		let targets = targets
-			.into_iter()
+			.iter()
 			.filter(|f| f.meta.is_file() && !mimetype.contains_key(&f.path))
 			.map(|f| f.path.clone())
 			.collect::<Vec<_>>();