Fix document reloading with delete-then-write editors and redo BottomMessage updating to work better

* Relicense to GPLv3 since poppler is GPL and we must not violate that license

* Add note to README that contributions will be licensed as MPL-2.0

.github/workflows/rust.yml

@@ -26,12 +26,12 @@ jobs:
     - name: Install build dependencies
       run: |
         sudo apt-get update
-        sudo apt-get install -y cmake libjpeg-dev libfontconfig1-dev libopenjp2-7-dev libglib2.0-dev libnss3-dev  
+        sudo apt-get install -y cmake libjpeg-dev libfontconfig1-dev libopenjp2-7-dev libopenjpip7 libopenjp2-7 libglib2.0-dev libnss3-dev libunwind-dev libgoogle-perftools-dev libboost-dev
     - name: Build newer poppler
       run: |
-        wget https://poppler.freedesktop.org/poppler-23.12.0.tar.xz
+        wget https://poppler.freedesktop.org/poppler-23.10.0.tar.xz
-        tar xf poppler-23.12.0.tar.xz
+        tar xf poppler-23.10.0.tar.xz
-        cd poppler-23.12.0
+        cd poppler-23.10.0
         mkdir build && cd build
         cmake .. -DCMAKE_BUILD_TYPE=Release \
              -DCMAKE_C_COMPILER_LAUNCHER=sccache \
@@ -40,7 +40,6 @@ jobs:
              -DENABLE_GPGME=OFF \
              -DENABLE_QT5=OFF \
              -DENABLE_QT6=OFF \
-             -DENABLE_BOOST=OFF \
              -DENABLE_SPLASH=OFF \
              -DENABLE_LIBCURL=OFF
         make -j$(nproc)
@@ -52,6 +51,6 @@ jobs:
     - name: Check fmt
       run: cargo fmt -- --check
     - name: Run tests
-      run: cargo test
+      run: cargo test --benches -- adobe_example
     - name: Build
       run: cargo build

CHANGELOG.md

@@ -5,6 +5,11 @@
 - Small internal changes to accomodate a few more clippy lints
 - Update `ratatui` and `ratatui-image` git dependencies to latest upstream
 - Move `ratatui-image/vb64` support under `nightly` feature, enabled by default
+- Fixed a bug where jumping to a page out of range could result in weird `esc` key behavior
+- Added CI ([#31](https://github.com/itsjunetime/tdf/pull/31), thank you [@Kriejstal](https://github.com/Kreijstal))
+- Changed global allocator to [`mimalloc`](https://github.com/purpleprotocol/mimalloc_rust) for slightly improved performance
+- Fixed issue with document reloading not working when files are intermedially deleted
+- Fixed a lot of weirdness with bottom message layering/updating
 
 # v0.1.0
 

Cargo.lock

@@ -149,9 +149,9 @@ dependencies = [
 
 [[package]]
 name = "axum"
-version = "0.7.7"
+version = "0.7.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "504e3947307ac8326a5437504c517c4b56716c9d98fac0028c2acc7ca47d70ae"
+checksum = "edca88bc138befd0323b20752846e6587272d3b03b0343c8ea28a6f819e6e71f"
 dependencies = [
  "async-trait",
  "axum-core",
@@ -168,7 +168,7 @@ dependencies = [
  "pin-project-lite",
  "rustversion",
  "serde",
- "sync_wrapper 1.0.1",
+ "sync_wrapper 1.0.2",
  "tower 0.5.1",
  "tower-layer",
  "tower-service",
@@ -189,7 +189,7 @@ dependencies = [
  "mime",
  "pin-project-lite",
  "rustversion",
- "sync_wrapper 1.0.1",
+ "sync_wrapper 1.0.2",
  "tower-layer",
  "tower-service",
 ]
@@ -253,9 +253,9 @@ checksum = "79296716171880943b8470b5f8d03aa55eb2e645a4874bdbb28adb49162e012c"
 
 [[package]]
 name = "bytemuck"
-version = "1.19.0"
+version = "1.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8334215b81e418a0a7bdb8ef0849474f40bb10c8b71f1c4ed315cff49f32494d"
+checksum = "8b37c88a63ffd85d15b406896cc343916d7cf57838a847b3a6f2ca5d39a5695a"
 
 [[package]]
 name = "byteorder"
@@ -321,9 +321,9 @@ dependencies = [
 
 [[package]]
 name = "cc"
-version = "1.2.0"
+version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1aeb932158bd710538c73702db6945cb68a8fb08c519e6e12706b94263b36db8"
+checksum = "fd9de9f2205d5ef3fd67e685b0df337994ddd4495e2a28d185500d0e1edfea47"
 dependencies = [
  "jobserver",
  "libc",
@@ -342,9 +342,9 @@ dependencies = [
 
 [[package]]
 name = "cfg-expr"
-version = "0.17.0"
+version = "0.17.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d0890061c4d3223e7267f3bad2ec40b997d64faac1c2815a4a9d95018e2b9e9c"
+checksum = "c360837f8f19e2e4468275138f1c0dec1647d1e17bb7c0215fe3cd7530e93c25"
 dependencies = [
  "smallvec",
  "target-lexicon",
@@ -385,18 +385,18 @@ dependencies = [
 
 [[package]]
 name = "clap"
-version = "4.5.20"
+version = "4.5.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b97f376d85a664d5837dbae44bf546e6477a679ff6610010f17276f686d867e8"
+checksum = "fb3b4b9e5a7c7514dfa52869339ee98b3156b0bfb4e8a77c4ff4babb64b1604f"
 dependencies = [
  "clap_builder",
 ]
 
 [[package]]
 name = "clap_builder"
-version = "4.5.20"
+version = "4.5.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "19bc80abd44e4bed93ca373a0704ccbd1b710dc5749406201bb018272808dc54"
+checksum = "b17a95aa67cc7b5ebd32aa5370189aa0d79069ef1c64ce893bd30fb24bff20ec"
 dependencies = [
  "anstyle",
  "clap_lex",
@@ -404,9 +404,9 @@ dependencies = [
 
 [[package]]
 name = "clap_lex"
-version = "0.7.2"
+version = "0.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1462739cb27611015575c0c11df5df7601141071f07518d56fcc1be504cbec97"
+checksum = "afb84c814227b90d6895e01398aee0d8033c00e7466aca416fb6a8e0eb19d8a7"
 
 [[package]]
 name = "compact_str"
@@ -681,9 +681,9 @@ dependencies = [
 
 [[package]]
 name = "flate2"
-version = "1.0.34"
+version = "1.0.35"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a1b589b4dc103969ad3cf85c950899926ec64300a1a46d76c03a6072957036f0"
+checksum = "c936bfdafb507ebbf50b8074c54fa31c5be9a1e7e5f467dd659697041407d07c"
 dependencies = [
  "crc32fast",
  "miniz_oxide",
@@ -910,9 +910,9 @@ dependencies = [
 
 [[package]]
 name = "h2"
-version = "0.4.6"
+version = "0.4.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "524e8ac6999421f49a846c2d4411f337e53497d8ec55d67753beffa43c5d9205"
+checksum = "ccae279728d634d083c00f6099cb58f01cc99c145b84b8be2f6c74618d79922e"
 dependencies = [
  "atomic-waker",
  "bytes",
@@ -945,9 +945,9 @@ checksum = "8a9ee70c43aaf417c914396645a0fa852624801b24ebb7ae78fe8272889ac888"
 
 [[package]]
 name = "hashbrown"
-version = "0.15.1"
+version = "0.15.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3a9bfc1af68b1726ea47d3d5109de126281def866b33970e10fbab11b5dafab3"
+checksum = "bf151400ff0baff5465007dd2f3e717f3fe502074ca563069ce3a6629d07b289"
 dependencies = [
  "allocator-api2",
  "equivalent",
@@ -1039,9 +1039,9 @@ checksum = "9a3a5bfb195931eeb336b2a7b4d761daec841b97f947d34394601737a7bba5e4"
 
 [[package]]
 name = "hyper"
-version = "1.5.0"
+version = "1.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bbbff0a806a4728c99295b254c8838933b5b082d75e3cb70c8dab21fdfbcfa9a"
+checksum = "97818827ef4f364230e16705d4706e2897df2bb60617d6ca15d598025a3c481f"
 dependencies = [
  "bytes",
  "futures-channel",
@@ -1141,7 +1141,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "707907fe3c25f5424cce2cb7e1cbcafee6bdbe735ca90ef77c29e84591e5b9da"
 dependencies = [
  "equivalent",
- "hashbrown 0.15.1",
+ "hashbrown 0.15.2",
 ]
 
 [[package]]
@@ -1244,9 +1244,9 @@ dependencies = [
 
 [[package]]
 name = "itoa"
-version = "1.0.11"
+version = "1.0.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "49f1f14873335454500d59611f1cf4a4b0f786f9ac11f4312a78e4cf2566695b"
+checksum = "d75a2a4b1b190afb6f5425f10f6a8f959d2ea0b9c2b1d79553551850539e4674"
 
 [[package]]
 name = "jobserver"
@@ -1294,9 +1294,9 @@ checksum = "bbd2bcb4c963f2ddae06a2efc7e9f3591312473c50c6685e1f298068316e66fe"
 
 [[package]]
 name = "libc"
-version = "0.2.162"
+version = "0.2.166"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "18d287de67fe55fd7e1581fe933d965a5a9477b38e949cfa9f8574ef01506398"
+checksum = "c2ccc108bbc0b1331bd061864e7cd823c0cab660bbe6970e66e2c0614decde36"
 
 [[package]]
 name = "libfuzzer-sys"
@@ -1308,6 +1308,16 @@ dependencies = [
  "cc",
 ]
 
+[[package]]
+name = "libmimalloc-sys"
+version = "0.1.39"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "23aa6811d3bd4deb8a84dde645f943476d13b248d818edcf8ce0b2f37f036b44"
+dependencies = [
+ "cc",
+ "libc",
+]
+
 [[package]]
 name = "libredox"
 version = "0.1.3"
@@ -1356,7 +1366,7 @@ version = "0.12.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "234cf4f4a04dc1f57e24b96cc0cd600cf2af460d4161ac5ecdd0af8e1f3b2a38"
 dependencies = [
- "hashbrown 0.15.1",
+ "hashbrown 0.15.2",
 ]
 
 [[package]]
@@ -1390,6 +1400,15 @@ version = "2.7.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "78ca9ab1a0babb1e7d5695e3530886289c18cf2f87ec19a575a0abdce112e3a3"
 
+[[package]]
+name = "mimalloc"
+version = "0.1.43"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "68914350ae34959d83f732418d51e2427a794055d0b9529f48259ac07af65633"
+dependencies = [
+ "libmimalloc-sys",
+]
+
 [[package]]
 name = "mime"
 version = "0.3.17"
@@ -1718,9 +1737,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.89"
+version = "1.0.92"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f139b0662de085916d1fb67d2b4169d1addddda1919e696f3252b740b629986e"
+checksum = "37d3544b3f2748c54e147655edb5025752e2303145b5aefb3c3ea2c78b973bb0"
 dependencies = [
  "unicode-ident",
 ]
@@ -2009,9 +2028,9 @@ checksum = "719b953e2095829ee67db738b3bfa9fa368c94900df327b3f07fe6e794d2fe1f"
 
 [[package]]
 name = "rustix"
-version = "0.38.40"
+version = "0.38.41"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "99e4ea3e1cdc4b559b8e5650f9c8e5998e3e5c1343b4eaf034565f32318d63c0"
+checksum = "d7f649912bc1495e167a6edee79151c84b1bad49748cb4f1f1167f459f6224f6"
 dependencies = [
  "bitflags 2.6.0",
  "errno",
@@ -2069,9 +2088,9 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.132"
+version = "1.0.133"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d726bfaff4b320266d395898905d0eba0345aae23b54aee3a737e260fd46db03"
+checksum = "c7fceb2473b9166b2294ef05efcb65a3db80803f0b03ef86a5fc88a2b85ee377"
 dependencies = [
  "itoa",
  "memchr",
@@ -2218,9 +2237,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.87"
+version = "2.0.89"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "25aa4ce346d03a6dcd68dd8b4010bcb74e54e62c90c573f394c46eae99aba32d"
+checksum = "44d46482f1c1c87acd84dea20c1bf5ebff4c757009ed6bf19cfd36fb10e92c4e"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2235,9 +2254,9 @@ checksum = "2047c6ded9c721764247e62cd3b03c09ffc529b2ba5b10ec482ae507a4a70160"
 
 [[package]]
 name = "sync_wrapper"
-version = "1.0.1"
+version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a7065abeca94b6a8a577f9bd45aa0867a2238b74e8eb67cf10d492bc39351394"
+checksum = "0bf256ce5efdfa370213c1dabab5935a12e49f2c58d15e9eac2870d3b4f27263"
 
 [[package]]
 name = "system-deps"
@@ -2258,7 +2277,7 @@ version = "7.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "66d23aaf9f331227789a99e8de4c91bf46703add012bdfd45fdecdfb2975a005"
 dependencies = [
- "cfg-expr 0.17.0",
+ "cfg-expr 0.17.1",
  "heck",
  "pkg-config",
  "toml",
@@ -2285,6 +2304,7 @@ dependencies = [
  "glib",
  "image",
  "itertools 0.13.0",
+ "mimalloc",
  "notify",
  "poppler-rs",
  "ratatui",
@@ -2517,9 +2537,9 @@ checksum = "8df9b6e13f2d32c91b9bd719c00d1958837bc7dec474d94952798cc8e69eeec3"
 
 [[package]]
 name = "tracing"
-version = "0.1.40"
+version = "0.1.41"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c3523ab5a71916ccf420eebdf5521fcef02141234bbc0b8a49f2fdc4544364ef"
+checksum = "784e0ac535deb450455cbfa28a6f0df145ea1bb7ae51b821cf5e7927fdcfbdd0"
 dependencies = [
  "pin-project-lite",
  "tracing-attributes",
@@ -2528,9 +2548,9 @@ dependencies = [
 
 [[package]]
 name = "tracing-attributes"
-version = "0.1.27"
+version = "0.1.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "34704c8d6ebcbc939824180af020566b01a7c01f80641264eba0999f6c2b6be7"
+checksum = "395ae124c09f9e6918a2310af6038fba074bcf474ac352496d5910dd59a2226d"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2539,9 +2559,9 @@ dependencies = [
 
 [[package]]
 name = "tracing-core"
-version = "0.1.32"
+version = "0.1.33"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c06d3da6113f116aaee68e4d601191614c9053067f9ab7f6edbcb161237daa54"
+checksum = "e672c95779cf947c5311f83787af4fa8fffd12fb27e4993211a84bdfd9610f9c"
 dependencies = [
  "once_cell",
  "valuable",
@@ -2570,9 +2590,9 @@ checksum = "e421abadd41a4225275504ea4d6566923418b7f05506fbc9c0fe86ba7396114b"
 
 [[package]]
 name = "unicode-ident"
-version = "1.0.13"
+version = "1.0.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e91b56cd4cadaeb79bbf1a5645f6b4f8dc5bde8834ad5894a8db35fda9efa1fe"
+checksum = "adb9e6ca4f869e1180728b7950e35922a7fc6397f7b641499e8f3ef06e50dc83"
 
 [[package]]
 name = "unicode-segmentation"

Cargo.toml

@@ -7,7 +7,7 @@ description = "A terminal viewer for PDFs"
 readme = "README.md"
 homepage = "https://github.com/itsjunetime/tdf"
 repository = "https://github.com/itsjunetime/tdf"
-license = "MPL-2.0"
+license = "GPL-3.0-or-later"
 keywords = ["pdf", "tui", "cli", "terminal"]
 categories = ["command-line-utilities", "text-processing", "visualization"]
 default-run = "tdf"
@@ -37,6 +37,7 @@ glib = "0.20.0"
 itertools = "*"
 flume = { version = "0.11.0", default-features = false, features = ["async"] }
 xflags = "0.4.0-pre.2"
+mimalloc = "0.1.43"
 
 # for tracing with tokio-console
 console-subscriber = { version = "0.4.0", optional = true }

README.md

@@ -29,3 +29,5 @@ I dunno. Just for fun, mostly.
 ## Can I contribute?
 
 Yeah, sure. Please do.
+
+Please note, though, that all contributions will be treated as licensed under MPL-2.0. This is so that we can relicense to MPL-2.0 at some point in the future if we manage to move away from poppler as a backend (since that is the only dependency, at time of writing, which requires the GPLv3 license).

benches/rendering.rs

@@ -71,7 +71,7 @@ pub async fn render_first_page(path: impl AsRef<Path>) {
 	} = start_all_rendering(path);
 
 	// we only want to render until the first page is ready to be printed
-	while pages.iter().all(|p| p.is_none()) {
+	while pages.iter().all(Option::is_none) {
 		tokio::select! {
 			Some(renderer_msg) = from_render_rx.next() => {
 				handle_renderer_msg(renderer_msg, &mut pages, &mut to_converter_tx);
@@ -94,6 +94,7 @@ async fn render_all_files(path: &'static str) -> Vec<PageInfo> {
 
 	while let Some(info) = from_render_rx.next().await {
 		match info.expect("Renderer ran into an error while rendering") {
+			RenderInfo::Reloaded => (),
 			RenderInfo::NumPages(num) => fill_default(&mut pages, num),
 			RenderInfo::Page(page) => {
 				let num = page.page;
@@ -101,7 +102,7 @@ async fn render_all_files(path: &'static str) -> Vec<PageInfo> {
 			}
 		};
 
-		if pages.iter().all(|p| p.is_some()) {
+		if pages.iter().all(Option::is_some) {
 			break;
 		}
 	}
@@ -136,7 +137,7 @@ async fn convert_all_files(files: Vec<PageInfo>) {
 		}
 	}
 
-	while converted.iter().any(|p| p.is_none()) {
+	while converted.iter().any(Option::is_none) {
 		let page = from_converter_rx
 			.next()
 			.await
@@ -157,7 +158,7 @@ impl Profiler for CpuProfiler {
 	fn start_profiling(&mut self, benchmark_id: &str, _: &std::path::Path) {
 		let file = format!(
 			"./{}-{}.profile",
-			benchmark_id.replace("/", "-"),
+			benchmark_id.replace('/', "-"),
 			SystemTime::now()
 				.duration_since(UNIX_EPOCH)
 				.unwrap()

benches/utils.rs

@@ -21,6 +21,8 @@ pub fn handle_renderer_msg(
 			to_converter_tx.send(ConverterMsg::NumPages(num)).unwrap();
 		}
 		Ok(RenderInfo::Page(info)) => to_converter_tx.send(ConverterMsg::AddImg(info)).unwrap(),
+		// We can ignore the `Reloaded` variant 'cause that's only used to send info to the TUI
+		Ok(RenderInfo::Reloaded) => (),
 		Err(e) => panic!("Got error from renderer: {e:?}")
 	}
 }

src/lib.rs

@@ -1,3 +1,6 @@
+#[global_allocator]
+static ALLOC: mimalloc::MiMalloc = mimalloc::MiMalloc;
+
 pub mod converter;
 pub mod renderer;
 pub mod skip;

src/main.rs

@@ -1,10 +1,10 @@
 use std::{
+	ffi::OsString,
 	io::{stdout, Read, Write},
 	num::NonZeroUsize,
 	path::PathBuf
 };
 
-use converter::{run_conversion_loop, ConvertedPage, ConverterMsg};
 use crossterm::{
 	execute,
 	terminal::{
@@ -17,13 +17,11 @@ use glib::{LogField, LogLevel, LogWriterOutput};
 use notify::{Event, EventKind, RecursiveMode, Watcher};
 use ratatui::{backend::CrosstermBackend, Terminal};
 use ratatui_image::picker::Picker;
-use renderer::{RenderError, RenderInfo, RenderNotif};
+use tdf::{
-use tui::{InputAction, Tui};
+	converter::{run_conversion_loop, ConvertedPage, ConverterMsg},
-
+	renderer::{self, RenderError, RenderInfo, RenderNotif},
-mod converter;
+	tui::{BottomMessage, InputAction, MessageSetting, Tui}
-mod renderer;
+};
-mod skip;
-mod tui;
 
 // Dummy struct for easy errors in main
 #[derive(Debug)]
@@ -60,12 +58,26 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
 	let (render_tx, tui_rx) = flume::unbounded();
 	let watch_to_tui_tx = render_tx.clone();
 
-	let mut watcher =
+	let mut watcher = notify::recommended_watcher(on_notify_ev(
-		notify::recommended_watcher(on_notify_ev(watch_to_tui_tx, watch_to_render_tx))?;
+		watch_to_tui_tx,
+		watch_to_render_tx,
+		path.file_name()
+			.ok_or("Path does not have a last component??")?
+			.to_owned()
+	))?;
 
-	// We're making this nonrecursive 'cause we're just watching a single file, so there's nothing
+	// So we have to watch the parent directory of the file that we are interested in because the
-	// to recurse into
+	// `notify` library works on inodes, and if the file is deleted, that inode is gone as well,
-	watcher.watch(&path, RecursiveMode::NonRecursive)?;
+	// and then the notify library just gives up on trying to watch for the file reappearing. Imo
+	// they should start watching the parent directory if the file is deleted, and then wait for it
+	// to reappear and then begin watching it again, but whatever. It seems they've made their
+	// opinion on this clear
+	// (https://github.com/notify-rs/notify/issues/113#issuecomment-281836995) so whatever, guess
+	// we have to do this annoying workaround.
+	watcher.watch(
+		path.parent().expect("The root directory is not a PDF"),
+		RecursiveMode::NonRecursive
+	)?;
 
 	// TODO: Handle non-utf8 file names? Maybe by constructing a CString and passing that in to the
 	// poppler stuff instead of a rust string?
@@ -123,7 +135,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
 
 	// We need to create `picker` on this thread because if we create it on the `renderer` thread,
 	// it messes up something with user input. Input never makes it to the crossterm thing
-    let picker = Picker::from_query_stdio()?;
+	let picker = Picker::from_query_stdio()?;
 
 	// then we want to spawn off the rendering task
 	// We need to use the thread::spawn API so that this exists in a thread not owned by tokio,
@@ -143,7 +155,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
 		|| "Unknown file".into(),
 		|n| n.to_string_lossy().to_string()
 	);
-	let mut tui = tui::Tui::new(file_name, flags.max_wide, flags.r_to_l.unwrap_or_default());
+	let mut tui = Tui::new(file_name, flags.max_wide, flags.r_to_l.unwrap_or_default());
 
 	let backend = CrosstermBackend::new(std::io::stdout());
 	let mut term = Terminal::new(backend)?;
@@ -161,7 +173,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
 	)?;
 	enable_raw_mode()?;
 
-	let mut main_area = tui::Tui::main_layout(&term.get_frame());
+	let mut main_area = Tui::main_layout(&term.get_frame());
 	tui_tx.send(RenderNotif::Area(main_area[1]))?;
 
 	let mut tui_rx = tui_rx.into_stream();
@@ -190,20 +202,16 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
 			},
 			Some(renderer_msg) = tui_rx.next() => {
 				match renderer_msg {
-					// if an Ok comes through, we know the error has been resolved ('cause it kinda
+					Ok(render_info) => match render_info {
-					// bails whenever we run into an error) so just clear it
+						RenderInfo::NumPages(num) => {
-					Ok(render_info) => {
+							tui.set_n_pages(num);
-						match render_info {
+							to_converter.send(ConverterMsg::NumPages(num))?;
-							RenderInfo::NumPages(num) => {
+						},
-								tui.set_n_pages(num);
+						RenderInfo::Page(info) => {
-								to_converter.send(ConverterMsg::NumPages(num))?;
+							tui.got_num_results_on_page(info.page, info.search_results);
-							},
+							to_converter.send(ConverterMsg::AddImg(info))?;
-							RenderInfo::Page(info) => {
+						},
-								tui.got_num_results_on_page(info.page, info.search_results);
+						RenderInfo::Reloaded => tui.set_msg(MessageSetting::Some(BottomMessage::Reloaded)),
-								to_converter.send(ConverterMsg::AddImg(info))?;
-							},
-						}
-						tui.set_bottom_msg(None);
 					},
 					Err(e) => tui.show_error(e),
 				}
@@ -243,7 +251,8 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
 
 fn on_notify_ev(
 	to_tui_tx: flume::Sender<Result<RenderInfo, RenderError>>,
-	to_render_tx: flume::Sender<RenderNotif>
+	to_render_tx: flume::Sender<RenderNotif>,
+	file_name: OsString
 ) -> impl Fn(notify::Result<Event>) {
 	move |res| match res {
 		// If we get an error here, and then an error sending, everything's going wrong. Just give
@@ -251,15 +260,29 @@ fn on_notify_ev(
 		Err(e) => to_tui_tx.send(Err(RenderError::Notify(e))).unwrap(),
 		// TODO: Should we match EventKind::Rename and propogate that so that the other parts of the
 		// process know that too? Or should that be
-		Ok(ev) => match ev.kind {
+		Ok(ev) => {
-			EventKind::Access(_) => (),
+			// We only watch the parent directory (see the comment above `watcher.watch` in `fn
-			EventKind::Remove(_) =>
+			// main`) so we need to filter out events to only ones that pertain to the single file
-				drop(to_tui_tx.send(Err(RenderError::Render("File was deleted".into())))),
+			// we care about
-			// This shouldn't fail to send unless the receiver gets disconnected. If that's
+			if !ev
-			// happened, then like the main thread has panicked or something, so it doesn't matter
+				.paths
-			// we don't handle the error here.
+				.iter()
-			EventKind::Other | EventKind::Any | EventKind::Create(_) | EventKind::Modify(_) =>
+				.any(|path| path.file_name().is_some_and(|f| f == file_name))
-				drop(to_render_tx.send(renderer::RenderNotif::Reload)),
+			{
+				return;
+			}
+
+			match ev.kind {
+				EventKind::Access(_) => (),
+				EventKind::Remove(_) => to_tui_tx
+					.send(Err(RenderError::Render("File was deleted".into())))
+					.unwrap(),
+				// This shouldn't fail to send unless the receiver gets disconnected. If that's
+				// happened, then like the main thread has panicked or something, so it doesn't matter
+				// we don't handle the error here.
+				EventKind::Other | EventKind::Any | EventKind::Create(_) | EventKind::Modify(_) =>
+					to_render_tx.send(RenderNotif::Reload).unwrap(),
+			}
 		}
 	}
 }

src/renderer.rs

@@ -25,7 +25,8 @@ pub enum RenderError {
 
 pub enum RenderInfo {
 	NumPages(usize),
-	Page(PageInfo)
+	Page(PageInfo),
+	Reloaded
 }
 
 #[derive(Clone)]
@@ -76,13 +77,11 @@ pub fn start_rendering(
 ) -> Result<(), SendError<Result<RenderInfo, RenderError>>> {
 	// first, wait 'til we get told what the current starting area is so that we can set it to
 	// know what to render to
-	let mut area;
+	let mut area = loop {
-	loop {
 		if let RenderNotif::Area(r) = receiver.recv().unwrap() {
-			area = r;
+			break r;
-			break;
 		}
-	}
+	};
 
 	// We want this outside of 'reload so that if the doc reloads, the search term that somebody
 	// set will still get highlighted in the reloaded doc
@@ -93,24 +92,37 @@ pub fn start_rendering(
 	let col_w = size.width / size.columns;
 	let col_h = size.height / size.rows;
 
+	let mut stored_doc = None;
+
 	'reload: loop {
 		let doc = match Document::from_file(path, None) {
 			Err(e) => {
 				// if there's an error, tell the main loop
 				sender.send(Err(RenderError::Doc(e)))?;
-				// then wait for a reload notif (since what probably happened is that the file was
+
-				// temporarily removed to facilitate a save or something like that)
+				match stored_doc {
-				while let Ok(msg) = receiver.recv() {
+					Some(ref d) => d,
-					// and once that comes, just try to reload again
+					None => {
-					if let RenderNotif::Reload = msg {
+						// then wait for a reload notif (since what probably happened is that the file was
-						continue 'reload;
+						// temporarily removed to facilitate a save or something like that)
+						while let Ok(msg) = receiver.recv() {
+							// and once that comes, just try to reload again
+							if let RenderNotif::Reload = msg {
+								continue 'reload;
+							}
+						}
+						// if that while let Ok ever fails and we exit out of that loop, the main thread is
+						// done, so we're fine to just return
+						return Ok(());
 					}
 				}
-				// if that while let Ok ever fails and we exit out of that loop, the main thread is
-				// done, so we're fine to just return
-				return Ok(());
 			}
-			Ok(d) => d
+			Ok(d) => {
+				if stored_doc.is_some() {
+					sender.send(Ok(RenderInfo::Reloaded))?;
+				}
+				&*stored_doc.insert(d)
+			}
 		};
 
 		let n_pages = doc.n_pages() as usize;
@@ -201,8 +213,8 @@ pub fn start_rendering(
 				// we only want to continue if one of the following is met:
 				// 1. It failed to render last time (we want to retry)
 				// 2. The `contained_term` is set to None (representing 'Unknown'), meaning that we
-				//    need to at least check if it contains the current term to see if it needs a
+				//	  need to at least check if it contains the current term to see if it needs a
-				//    re-render
+				//	  re-render
 				if rendered.successful && rendered.contained_term.is_some() {
 					continue;
 				}

src/tui.rs

@@ -1,4 +1,4 @@
-use std::{io::stdout, num::NonZeroUsize, rc::Rc};
+use std::{borrow::Cow, io::stdout, num::NonZeroUsize, rc::Rc};
 
 use crossterm::{
 	event::{Event, KeyCode, MouseEventKind},
@@ -43,7 +43,8 @@ pub enum BottomMessage {
 	Help,
 	SearchResults(String),
 	Error(String),
-	Input(InputCommand)
+	Input(InputCommand),
+	Reloaded
 }
 
 pub enum InputCommand {
@@ -152,18 +153,18 @@ impl Tui {
 		let rendered_span = Span::styled(&rendered_str, Style::new().fg(Color::Cyan));
 		frame.render_widget(rendered_span, bottom_layout[1]);
 
-		let (msg_str, color) = match self.bottom_msg {
+		let (msg_str, color): (Cow<'_, str>, _) = match self.bottom_msg {
 			BottomMessage::Help => (
-				"/: Search, g: Go To Page, n: Next Search Result, N: Previous Search Result"
+				"/: Search, g: Go To Page, n: Next Search Result, N: Previous Search Result".into(),
-					.to_string(),
 				Color::Blue
 			),
-			BottomMessage::Error(ref e) => (format!("Couldn't render a page: {e}"), Color::Red),
+			BottomMessage::Error(ref e) => (e.as_str().into(), Color::Red),
 			BottomMessage::Input(ref input_state) => (
 				match input_state {
 					InputCommand::GoToPage(page) => format!("Go to: {page}"),
 					InputCommand::Search(s) => format!("Search: {s}")
-				},
+				}
+				.into(),
 				Color::Blue
 			),
 			BottomMessage::SearchResults(ref term) => {
@@ -181,10 +182,12 @@ impl Tui {
 					format!(
 						"Results for '{term}': {num_found} (searched: {}%)",
 						num_searched / self.rendered.len()
-					),
+					)
+					.into(),
 					Color::Blue
 				)
 			}
+			BottomMessage::Reloaded => ("Document was reloaded!".into(), Color::Blue)
 		};
 
 		let span = Span::styled(msg_str, Style::new().fg(color));
@@ -370,12 +373,16 @@ impl Tui {
 				match key.code {
 					KeyCode::Char(c) => {
 						// TODO: refactor back to `if let` arm guards when those are stabilized
-						if let BottomMessage::Input(InputCommand::Search(ref mut term)) = self.bottom_msg {
+						if let BottomMessage::Input(InputCommand::Search(ref mut term)) =
+							self.bottom_msg
+						{
 							term.push(c);
 							return Some(InputAction::Redraw);
 						}
 
-						if let BottomMessage::Input(InputCommand::GoToPage(ref mut page)) = self.bottom_msg {
+						if let BottomMessage::Input(InputCommand::GoToPage(ref mut page)) =
+							self.bottom_msg
+						{
 							return c.to_digit(10).map(|input_num| {
 								*page = (*page * 10) + input_num as usize;
 								InputAction::Redraw
@@ -389,13 +396,15 @@ impl Tui {
 							'k' => self.change_page(PageChange::Prev, ChangeAmount::WholeScreen),
 							'q' => Some(InputAction::QuitApp),
 							'g' => {
-								self.set_bottom_msg(Some(BottomMessage::Input(InputCommand::GoToPage(0))));
+								self.set_msg(MessageSetting::Some(BottomMessage::Input(
+									InputCommand::GoToPage(0)
+								)));
 								Some(InputAction::Redraw)
 							}
 							'/' => {
-								self.set_bottom_msg(Some(BottomMessage::Input(InputCommand::Search(
+								self.set_msg(MessageSetting::Some(BottomMessage::Input(
-									String::new()
+									InputCommand::Search(String::new())
-								))));
+								)));
 								Some(InputAction::Redraw)
 							}
 							'n' if self.page < self.rendered.len() - 1 => {
@@ -424,49 +433,57 @@ impl Tui {
 									});
 
 								jump_to_page(&mut self.page, &mut self.last_render.rect, prev_page)
-							},
+							}
 							_ => None
 						}
-					},
+					}
 					KeyCode::Backspace => {
-						if let BottomMessage::Input(InputCommand::Search(ref mut term)) = self.bottom_msg {
+						if let BottomMessage::Input(InputCommand::Search(ref mut term)) =
+							self.bottom_msg
+						{
 							term.pop();
 							return Some(InputAction::Redraw);
 						}
 						None
-					},
+					}
 					KeyCode::Right => self.change_page(PageChange::Next, ChangeAmount::Single),
 					KeyCode::Down => self.change_page(PageChange::Next, ChangeAmount::WholeScreen),
 					KeyCode::Left => self.change_page(PageChange::Prev, ChangeAmount::Single),
 					KeyCode::Up => self.change_page(PageChange::Prev, ChangeAmount::WholeScreen),
 					KeyCode::Esc => match self.bottom_msg {
-						BottomMessage::Input(_) => {
+						BottomMessage::Help => Some(InputAction::QuitApp),
-							self.set_bottom_msg(None);
+						_ => {
+							// When we hit escape, we just want to pop off the current message and
+							// show the underlying one.
+							self.set_msg(MessageSetting::Pop);
 							Some(InputAction::Redraw)
 						}
-						_ => Some(InputAction::QuitApp)
 					},
 					KeyCode::Enter => {
-						let BottomMessage::Input(_) = self.bottom_msg else {
+						let mut default = BottomMessage::default();
+						std::mem::swap(&mut self.bottom_msg, &mut default);
+						let BottomMessage::Input(ref cmd) = default else {
+							std::mem::swap(&mut self.bottom_msg, &mut default);
 							return None;
 						};
 
-						self.set_bottom_msg(None);
-						let Some(BottomMessage::Input(ref cmd)) = self.prev_msg else {
-							// We need to verify it's an input msg currently, and only then take it
-							// and replace it by a default Help message. Don't exactly know how to
-							// do this otherwise.
-							unreachable!();
-						};
-
 						match cmd {
 							// Only forward the command if it's within range
 							InputCommand::GoToPage(page) => {
-								let page = *page;
+								// We need to subtract 1 b/c they're tracked internally as
-								(page < self.rendered.len()).then(|| {
+								// 0-indexed but input and displayed as 1-indexed
-									self.set_page(page);
+								let zero_page = page.saturating_sub(1);
-									InputAction::JumpingToPage(page)
+								let rendered_len = self.rendered.len();
-								})
+
+								if zero_page < rendered_len {
+									self.set_page(zero_page);
+									Some(InputAction::JumpingToPage(zero_page))
+								} else {
+									self.set_msg(MessageSetting::Some(BottomMessage::Error(
+										format!("Cannot jump to page {page}; there are only {rendered_len} pages in the document")
+									)));
+									Some(InputAction::Redraw)
+								}
 							}
 							InputCommand::Search(term) => {
 								let term = term.clone();
@@ -474,14 +491,14 @@ impl Tui {
 								// We only want to show search results if there would actually be
 								// data to show
 								if !term.is_empty() {
-									self.set_bottom_msg(Some(BottomMessage::SearchResults(
+									self.set_msg(MessageSetting::Some(
-										term.clone()
+										BottomMessage::SearchResults(term.clone())
-									)));
+									));
 								} else {
 									// else, if it's not empty, we just want to reset the bottom
 									// area to show the default data; we don't want it to like show
 									// the data from a previous search
-									self.set_bottom_msg(Some(BottomMessage::Help));
+									self.set_msg(MessageSetting::Reset);
 								}
 
 								// Reset all the search results
@@ -515,7 +532,7 @@ impl Tui {
 	}
 
 	pub fn show_error(&mut self, err: RenderError) {
-		self.set_bottom_msg(Some(BottomMessage::Error(match err {
+		self.set_msg(MessageSetting::Some(BottomMessage::Error(match err {
 			RenderError::Notify(e) => format!("Auto-reload failed: {e}"),
 			RenderError::Doc(e) => format!("Couldn't open document: {e}"),
 			RenderError::Render(e) => format!("Couldn't render page: {e}")
@@ -532,17 +549,18 @@ impl Tui {
 
 	// We have `msg` as optional so that if they reset it to none, it'll replace it with
 	// `prev_msg`, but if they reset it to something else, it'll put the current thing in prev_msg
-	pub fn set_bottom_msg(&mut self, msg: Option<BottomMessage>) {
+	pub fn set_msg(&mut self, msg: MessageSetting) {
 		match msg {
-			Some(mut msg) => {
+			MessageSetting::Some(mut msg) => {
 				std::mem::swap(&mut self.bottom_msg, &mut msg);
 				self.prev_msg = Some(msg);
 			}
-			None => {
+			MessageSetting::Default => self.set_msg(MessageSetting::Some(BottomMessage::default())),
-				let mut new_bottom = self.prev_msg.take().unwrap_or_default();
+			MessageSetting::Reset => {
-				std::mem::swap(&mut self.bottom_msg, &mut new_bottom);
+				self.prev_msg = None;
-				self.prev_msg = Some(new_bottom);
+				self.bottom_msg = BottomMessage::default();
 			}
+			MessageSetting::Pop => self.bottom_msg = self.prev_msg.take().unwrap_or_default()
 		}
 	}
 }
@@ -565,3 +583,10 @@ enum ChangeAmount {
 	WholeScreen,
 	Single
 }
+
+pub enum MessageSetting {
+	Some(BottomMessage),
+	Default,
+	Reset,
+	Pop
+}