fix: unable to scroll back after scrolling beyond the maximum boundary

Cargo.lock

@@ -237,9 +237,9 @@ checksum = "14c189c53d098945499cdfa7ecc63567cf3886b3332b312a5b4585d8d3a6a610"
 
 [[package]]
 name = "bytes"
-version = "1.4.0"
+version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "89b2fd2a0dcf38d7971e2194b6b6eebab45ae01067456a7fd93d5547a61b70be"
+checksum = "a2bd12c1caf447e69cd4528f47f94d203fd2582878ecb9e9465484c4148a8223"
 
 [[package]]
 name = "cassowary"
@@ -264,9 +264,9 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
 name = "chrono"
-version = "0.4.29"
+version = "0.4.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d87d9d13be47a5b7c3907137f1290b0459a7f80efb26be8c52afb11963bccb02"
+checksum = "defd4e7873dbddba6c7c91e199c7fcb946abc4a6a4ac3195400bcfb01b5de877"
 dependencies = [
  "android-tzdata",
  "iana-time-zone",
@@ -1880,9 +1880,9 @@ dependencies = [
 
 [[package]]
 name = "toml"
-version = "0.7.6"
+version = "0.7.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c17e963a819c331dcacd7ab957d80bc2b9a9c1e71c804826d2f283dd65306542"
+checksum = "de0a3ab2091e52d7299a39d098e200114a972df0a7724add02a273aa9aada592"
 dependencies = [
  "indexmap 2.0.0",
  "serde",
@@ -1902,9 +1902,9 @@ dependencies = [
 
 [[package]]
 name = "toml_edit"
-version = "0.19.14"
+version = "0.19.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f8123f27e969974a3dfba720fdb560be359f57b44302d280ba72e76a74480e8a"
+checksum = "1b5bb770da30e5cbfde35a2d7b9b8a2c4b8ef89548a7a6aeab5c9a576e3e7421"
 dependencies = [
  "indexmap 2.0.0",
  "serde",

app/src/app.rs

@@ -160,10 +160,13 @@ impl App {
 				}
 				emit!(Peek);
 			}
-			Event::Peek(skip, sequent) => {
-				let b = sequent.is_some();
-				manager.active_mut().update_peek(skip as isize, sequent);
-				self.cx.manager.peek(b, self.cx.image_layer());
+			Event::Peek(sequent) => {
+				if let Some((max, url)) = sequent {
+					manager.active_mut().update_peek(max, url);
+					self.cx.manager.peek(true, self.cx.image_layer());
+				} else {
+					self.cx.manager.peek(false, self.cx.image_layer());
+				}
 			}
 			Event::Preview(lock) => {
 				if manager.active_mut().update_preview(lock) {

app/src/executor.rs

@@ -66,7 +66,7 @@ impl Executor {
 			}
 			"peek" => {
 				let step = exec.args.get(0).and_then(|s| s.parse().ok()).unwrap_or(0);
-				cx.manager.active_mut().update_peek(step, None);
+				cx.manager.active_mut().preview_arrow(step);
 				cx.manager.peek(true, cx.image_layer())
 			}
 			"leave" => cx.manager.active_mut().leave(),

core/src/event.rs

@@ -27,7 +27,7 @@ pub enum Event {
 	Pages(usize),
 	Mimetype(BTreeMap<Url, String>),
 	Hover(Option<File>),
-	Peek(usize, Option<Url>),
+	Peek(Option<(usize, Url)>),
 	Preview(PreviewLock),
 
 	// Input
@@ -90,10 +90,10 @@ macro_rules! emit {
 		$crate::Event::Hover(Some($file)).emit();
 	};
 	(Peek) => {
-		$crate::Event::Peek(0, None).emit();
+		$crate::Event::Peek(None).emit();
 	};
 	(Peek($skip:expr, $url:expr)) => {
-		$crate::Event::Peek($skip, Some($url)).emit();
+		$crate::Event::Peek(Some(($skip, $url))).emit();
 	};
 	(Preview($lock:expr)) => {
 		$crate::Event::Preview($lock).emit();

core/src/manager/manager.rs

@@ -71,11 +71,6 @@ impl Manager {
 		}
 
 		let Some(mime) = self.mimetype.get(url).cloned() else {
-			tokio::spawn(async move {
-				if let Ok(mimes) = external::file(&[hovered.url()]).await {
-					emit!(Mimetype(mimes));
-				}
-			});
 			return false;
 		};
 

core/src/manager/preview/preview.rs

@@ -129,7 +129,6 @@ impl Preview {
 		}));
 	}
 
-	#[inline]
 	pub fn arrow(&mut self, step: isize) -> bool {
 		let Some(kind) = self.lock.as_ref().map(|l| MimeKind::new(&l.mime)) else {
 			return false;
@@ -142,6 +141,15 @@ impl Preview {
 		self.skip != old
 	}
 
+	pub fn arrow_max(&mut self, max: usize) -> bool {
+		if self.skip > max {
+			self.skip = max;
+			return true;
+		}
+
+		false
+	}
+
 	pub fn reset<F: FnOnce(&PreviewLock) -> bool>(&mut self, f: F) -> bool {
 		self.handle.take().map(|h| h.abort());
 		INCR.fetch_add(1, Ordering::Relaxed);

core/src/manager/tab.rs

@@ -325,16 +325,16 @@ impl Tab {
 		false
 	}
 
-	pub fn update_peek(&mut self, step: isize, url: Option<Url>) -> bool {
+	pub fn update_peek(&mut self, max: usize, url: Url) -> bool {
 		let Some(ref hovered) = self.current.hovered else {
 			return false;
 		};
 
-		if url.as_ref().map(|p| p != hovered.url()) == Some(true) {
+		if &url != hovered.url() {
 			return false;
 		}
 
-		self.preview.arrow(step)
+		self.preview.arrow_max(max)
 	}
 
 	pub fn update_preview(&mut self, lock: PreviewLock) -> bool {
@@ -404,6 +404,9 @@ impl Tab {
 	#[inline]
 	pub fn preview_reset_image(&mut self) -> bool { self.preview.reset(|l| l.is_image()) }
 
+	#[inline]
+	pub fn preview_arrow(&mut self, step: isize) -> bool { self.preview.arrow(step) }
+
 	// --- Sorter
 	pub fn set_sorter(&mut self, sorter: FilesSorter) -> bool {
 		if !self.current.files.set_sorter(sorter) {