diff --git a/apps/ely-doc/src/tests.rs b/apps/ely-doc/src/tests.rs
index ab0a07d..8aacaf7 100644
--- a/apps/ely-doc/src/tests.rs
+++ b/apps/ely-doc/src/tests.rs
@@ -365,7 +365,7 @@ fn a_macro_file_opens_in_risk_mode_and_saves_only_as_a_copy() {
     );
     cx.update(|app| {
         assert!(
-            !docs.read(app).active_tab().expect("a tab").risk.is_some(),
+            docs.read(app).active_tab().expect("a tab").risk.is_none(),
             "the DOCX copy holds no macros"
         )
     });
diff --git a/apps/ely-pdf/src/protect.rs b/apps/ely-pdf/src/protect.rs
index d2e01f8..12f41db 100644
--- a/apps/ely-pdf/src/protect.rs
+++ b/apps/ely-pdf/src/protect.rs
@@ -236,7 +236,8 @@ impl Viewer {
     }
 
     fn protect_rows(&self, on: bool, user: &Entity<TextInput>, owner: &Entity<TextInput>, allow: u32, this: &Entity<Self>, cx: &mut Context<Self>) -> AnyElement {
-        let set = |change: Box<dyn Fn(&mut bool, &mut u32, bool)>| {
+        type Change = Box<dyn Fn(&mut bool, &mut u32, bool)>;
+        let set = |change: Change| {
             let this = this.clone();
             move |value: bool, _: &mut Window, cx: &mut App| {
                 this.update(cx, |viewer, cx| {
diff --git a/apps/ely-pdf/src/sign.rs b/apps/ely-pdf/src/sign.rs
index 2f8a4c4..4e073f5 100644
--- a/apps/ely-pdf/src/sign.rs
+++ b/apps/ely-pdf/src/sign.rs
@@ -57,12 +57,11 @@ impl PdfView {
         self.off(
             move |worker| {
                 let fields = worker.signatures(doc, &path)?;
-                Ok(fields.into_iter().map(|field| {
+                Ok(Iterator::collect::<Vec<_>>(fields.into_iter().map(|field| {
                     let chain = field.signed.as_ref().map(|signed| signed.certs.clone()).filter(|certs| !certs.is_empty());
                     let trust = chain.map(|chain| trust::check(&chain).map_err(|error| error.to_string()));
                     Checked { field, trust }
-                }))
-                .map(Iterator::collect::<Vec<_>>)
+                })))
             },
             move |view, read: io::Result<Vec<Checked>>, cx| {
                 view.reading_signatures = false;
diff --git a/apps/ely-pdf/src/tests/output.rs b/apps/ely-pdf/src/tests/output.rs
index 2ed42a2..77a4c6a 100644
--- a/apps/ely-pdf/src/tests/output.rs
+++ b/apps/ely-pdf/src/tests/output.rs
@@ -76,7 +76,7 @@ fn a_damaged_file_opens_repaired_and_saves_as_a_new_file() {
     bytes.truncate(at);
     bytes.extend_from_slice(b"startxref\n9\n%%EOF\n");
     std::fs::write(&path, &bytes).expect("writes");
-    let (viewer, cx) = windowed(&mut cx, dir.path(), &[path.clone()], true);
+    let (viewer, cx) = windowed(&mut cx, dir.path(), std::slice::from_ref(&path), true);
     let view = shown(cx, &viewer);
     assert_eq!(cx.update(|_, app| viewer.read(app).active_tab().and_then(|tab| tab.risk)), Some(ely_office::Risk::Repaired));
     assert!(cx.update(|_, app| view.read(app).repair.as_ref().is_some_and(|report| !report.is_empty())));
@@ -158,7 +158,7 @@ fn a_picture_that_breaks_as_it_draws_stops_an_overwrite() {
     let dir = tempfile::tempdir().expect("a temp dir");
     let mut cx = TestAppContext::single();
     let (path, bytes) = broken_picture(dir.path(), 792.0, 600.0);
-    let (viewer, cx) = windowed(&mut cx, dir.path(), &[path.clone()], true);
+    let (viewer, cx) = windowed(&mut cx, dir.path(), std::slice::from_ref(&path), true);
     shown(cx, &viewer);
     settle(cx, |app| viewer.read(app).active_tab().and_then(|tab| tab.risk) == Some(ely_office::Risk::Repaired));
     let id = cx.update(|_, app| viewer.read(app).core.tabs[0].id);
@@ -184,7 +184,7 @@ fn a_picture_never_drawn_is_checked_before_an_overwrite() {
     let path = dir.path().join("long.pdf");
     worker.save(doc, &path).expect("saves");
     let bytes = std::fs::read(&path).expect("reads");
-    let (viewer, cx) = windowed(&mut cx, dir.path(), &[path.clone()], true);
+    let (viewer, cx) = windowed(&mut cx, dir.path(), std::slice::from_ref(&path), true);
     shown(cx, &viewer);
     for _ in 0..10 {
         super::frames(cx);
diff --git a/apps/ely-pdf/src/tests/sign.rs b/apps/ely-pdf/src/tests/sign.rs
index 543bf9a..a8952e1 100644
--- a/apps/ely-pdf/src/tests/sign.rs
+++ b/apps/ely-pdf/src/tests/sign.rs
@@ -212,7 +212,7 @@ fn reopening_the_dialog_checks_the_file_as_it_is_now() {
     let dir = tempfile::tempdir().expect("a temp dir");
     let mut cx = TestAppContext::single();
     let path = signed(dir.path());
-    let (viewer, cx) = windowed(&mut cx, dir.path(), &[path.clone()], true);
+    let (viewer, cx) = windowed(&mut cx, dir.path(), std::slice::from_ref(&path), true);
     let view = shown(cx, &viewer);
     let digest = |cx: &mut VisualTestContext| {
         cx.update(|_, app| viewer.update(app, |viewer, cx| viewer.show_signatures(true, cx)));
diff --git a/apps/ely-pdf/src/viewer.rs b/apps/ely-pdf/src/viewer.rs
index d8cc5c6..fba2605 100644
--- a/apps/ely-pdf/src/viewer.rs
+++ b/apps/ely-pdf/src/viewer.rs
@@ -69,7 +69,7 @@ impl Host for Viewer {
     }
 
     fn read_at(&self, tab: u64, cx: &gpui::App) -> Option<ely_pdf_engine::Doc> {
-        self.tab(tab).map(|tab| tab.view.read(cx).doc.clone())
+        self.tab(tab).map(|tab| tab.view.read(cx).doc)
     }
 
     fn observed(&mut self, id: u64, view: &Entity<PdfView>, cx: &mut Context<Self>) {
diff --git a/apps/ely-pdf/src/visible.rs b/apps/ely-pdf/src/visible.rs
index 688dbd7..582b872 100644
--- a/apps/ely-pdf/src/visible.rs
+++ b/apps/ely-pdf/src/visible.rs
@@ -45,8 +45,11 @@ pub struct Making {
     picture: Option<(PathBuf, f32)>,
 }
 
+/// Points of each stroke.
+type Strokes = Vec<Vec<(f32, f32)>>;
+
 /// Strokes moved to the corner, the longer side 1.
-pub fn fitted(strokes: &[Vec<(f32, f32)>]) -> Option<(Vec<Vec<(f32, f32)>>, f32)> {
+pub fn fitted(strokes: &[Vec<(f32, f32)>]) -> Option<(Strokes, f32)> {
     if strokes.iter().all(|stroke| stroke.len() < 2) {
         return None;
     }
diff --git a/apps/ely-show/src/insert.rs b/apps/ely-show/src/insert.rs
index 8683745..9bc2300 100644
--- a/apps/ely-show/src/insert.rs
+++ b/apps/ely-show/src/insert.rs
@@ -172,7 +172,7 @@ mod tests {
                 _ => None,
             });
             let names: Vec<_> = names.collect();
-            (names.iter().any(|name| *name == media), names.len())
+            (names.contains(&media), names.len())
         });
         assert_eq!(offered, ely_platform::media::BUILT);
         assert!(total >= 11, "the rest stay: {total}");
diff --git a/apps/ely-table/src/book.rs b/apps/ely-table/src/book.rs
index 164dbe8..2eb951c 100644
--- a/apps/ely-table/src/book.rs
+++ b/apps/ely-table/src/book.rs
@@ -419,6 +419,8 @@ fn frozen_index(state: Option<&str>) -> Option<u32> {
     (index > 0).then_some(index)
 }
 
+impl Zooming for Book {}
+
 #[cfg(test)]
 mod tests {
     #[test]
@@ -428,5 +430,3 @@ mod tests {
         assert_eq!(super::frozen_index(None), None);
     }
 }
-
-impl Zooming for Book {}
diff --git a/apps/ely-tree/src/asks.rs b/apps/ely-tree/src/asks.rs
index eb20ef3..d432a07 100644
--- a/apps/ely-tree/src/asks.rs
+++ b/apps/ely-tree/src/asks.rs
@@ -251,8 +251,7 @@ impl Tree {
                 let (title, go) = (label("tree.branch.title"), label("tree.branch.create"));
                 Some(self.form(
                     "tree-new-branch",
-                    title,
-                    go,
+                    (title, go),
                     rows,
                     Some(toggle.into_any_element()),
                     dismiss,
@@ -271,7 +270,7 @@ impl Tree {
                         div().w_full().child(Input::new(message)),
                     );
                 let (title, go) = (label("tree.tag.title"), label("tree.tag.create"));
-                Some(self.form("tree-new-tag", title, go, rows, None, dismiss, cx))
+                Some(self.form("tree-new-tag", (title, go), rows, None, dismiss, cx))
             }
             Ask::Rename { old, name, .. } => {
                 let label = |key: &str| text(cx, key, &[]);
@@ -283,7 +282,7 @@ impl Tree {
                     text(cx, "tree.rename.title", &[("name", old)]),
                     label("tree.rename.go"),
                 );
-                Some(self.form("tree-rename", title, go, rows, None, dismiss, cx))
+                Some(self.form("tree-rename", (title, go), rows, None, dismiss, cx))
             }
             Ask::Stash { .. }
             | Ask::Remote { .. }
@@ -347,8 +346,7 @@ impl Tree {
     pub(crate) fn form(
         &self,
         id: &'static str,
-        title: gpui::SharedString,
-        go: gpui::SharedString,
+        (title, go): (gpui::SharedString, gpui::SharedString),
         rows: DescriptionList,
         extra: Option<AnyElement>,
         dismiss: impl Fn(&mut Window, &mut App) + 'static,
diff --git a/apps/ely-tree/src/asks_places.rs b/apps/ely-tree/src/asks_places.rs
index 3fd3fe6..dc50e30 100644
--- a/apps/ely-tree/src/asks_places.rs
+++ b/apps/ely-tree/src/asks_places.rs
@@ -56,7 +56,7 @@ impl Tree {
                     },
                 );
                 let (title, go) = (label("tree.stash.title"), label("tree.stash.go"));
-                self.form("tree-stash", title, go, rows, Some(extra), dismiss, cx)
+                self.form("tree-stash", (title, go), rows, Some(extra), dismiss, cx)
             }
             Ask::Remote { old, name, url, .. } => {
                 let rows = DescriptionList::new()
@@ -73,7 +73,7 @@ impl Tree {
                     None => label("tree.remote.add"),
                 };
                 let go = label("tree.remote.save");
-                self.form("tree-remote", title, go, rows, None, dismiss, cx)
+                self.form("tree-remote", (title, go), rows, None, dismiss, cx)
             }
             Ask::Worktree {
                 path, branch, new, ..
@@ -90,7 +90,7 @@ impl Tree {
                 let shown = path.display().to_string();
                 let title = text(cx, "tree.worktree.title", &[("path", &shown)]);
                 let go = label("tree.worktree.go");
-                self.form("tree-worktree", title, go, rows, Some(extra), dismiss, cx)
+                self.form("tree-worktree", (title, go), rows, Some(extra), dismiss, cx)
             }
             Ask::Force { repo, plan } => {
                 let lost = match plan.lost.len() {
diff --git a/apps/ely-tree/src/committing.rs b/apps/ely-tree/src/committing.rs
index c638684..f5813c3 100644
--- a/apps/ely-tree/src/committing.rs
+++ b/apps/ely-tree/src/committing.rs
@@ -150,11 +150,10 @@ impl Tree {
                 (self.amend, self.draft) = (false, None);
                 self.fill("", "", cx);
             }
-        } else if let Some(opened) = self.opened_mut(id) {
-            if commit::message(&opened.held.subject, &opened.held.body) == message {
+        } else if let Some(opened) = self.opened_mut(id)
+            && commit::message(&opened.held.subject, &opened.held.body) == message {
                 opened.held = Held::default();
             }
-        }
         cx.notify();
     }
 
diff --git a/apps/ely-tree/src/hist.rs b/apps/ely-tree/src/hist.rs
index 08dec4a..2e27ed5 100644
--- a/apps/ely-tree/src/hist.rs
+++ b/apps/ely-tree/src/hist.rs
@@ -253,7 +253,7 @@ impl Tree {
     pub fn search(&mut self, cx: &mut Context<Self>) {
         let Some(id) = self.active else { return };
         let text = self.search.read(cx).text().trim().to_string();
-        let query = (!text.is_empty()).then(|| Query {
+        let query = (!text.is_empty()).then_some(Query {
             find: self.find,
             text,
         });
diff --git a/apps/ely-tree/src/hist_pane.rs b/apps/ely-tree/src/hist_pane.rs
index 3feaf44..5e53b4d 100644
--- a/apps/ely-tree/src/hist_pane.rs
+++ b/apps/ely-tree/src/hist_pane.rs
@@ -195,10 +195,8 @@ impl Tree {
     /// Pick, revert, or branch or tag at this commit.
     fn commit_actions(&self, detail: &Detail, cx: &mut Context<Self>) -> AnyElement {
         let (id, parents) = (detail.id.clone(), detail.parents.len());
-        let acts: [(
-            &str,
-            Box<dyn Fn(&mut Tree, &mut gpui::Window, &mut Context<Tree>)>,
-        ); 4] = [
+        type Act = Box<dyn Fn(&mut Tree, &mut gpui::Window, &mut Context<Tree>)>;
+        let acts: [(&str, Act); 4] = [
             ("tree.commit.pick_it", {
                 let id = id.clone();
                 Box::new(move |tree, _, cx| tree.cherry_pick(&id, parents, cx))
diff --git a/apps/ely-tree/src/look.rs b/apps/ely-tree/src/look.rs
index 703e55d..be74412 100644
--- a/apps/ely-tree/src/look.rs
+++ b/apps/ely-tree/src/look.rs
@@ -13,6 +13,9 @@ use crate::{
     tree::Tree,
 };
 
+/// A commit and its added and removed line counts.
+type Row = (Commit, Option<(usize, usize)>);
+
 pub enum Look {
     FileLog {
         repo: u64,
@@ -20,7 +23,7 @@ pub enum Look {
         serial: u64,
         path: String,
         touches: Option<Result<Vec<Touch>, String>>,
-        rows: Rc<Vec<(Commit, Option<(usize, usize)>)>>,
+        rows: Rc<Vec<Row>>,
         picked: Option<usize>,
         view: Option<Result<View, String>>,
     },
diff --git a/apps/ely-tree/src/recover.rs b/apps/ely-tree/src/recover.rs
index bbde5cb..588650f 100644
--- a/apps/ely-tree/src/recover.rs
+++ b/apps/ely-tree/src/recover.rs
@@ -18,7 +18,7 @@ pub fn records(bytes: &[u8], n: usize) -> io::Result<Vec<Vec<&str>>> {
     if fields.last() == Some(&"") {
         fields.pop();
     }
-    if fields.len() % n != 0 {
+    if !fields.len().is_multiple_of(n) {
         return Err(bad(text));
     }
     Ok(fields.chunks(n).map(<[&str]>::to_vec).collect())
diff --git a/apps/ely-tree/src/tests.rs b/apps/ely-tree/src/tests.rs
index 7467d76..fc2fc3d 100644
--- a/apps/ely-tree/src/tests.rs
+++ b/apps/ely-tree/src/tests.rs
@@ -53,7 +53,9 @@ pub(crate) fn committed(dir: &Path) -> PathBuf {
     root
 }
 
-fn paths(files: &[Changed]) -> Vec<(&str, GitStatus, Option<(usize, usize)>)> {
+type Listed<'a> = (&'a str, GitStatus, Option<(usize, usize)>);
+
+fn paths(files: &[Changed]) -> Vec<Listed<'_>> {
     files
         .iter()
         .map(|file| (file.path.as_ref(), file.status, file.lines))
diff --git a/crates/ely-office/src/lib.rs b/crates/ely-office/src/lib.rs
index bde1731..46f2d38 100644
--- a/crates/ely-office/src/lib.rs
+++ b/crates/ely-office/src/lib.rs
@@ -273,19 +273,6 @@ pub fn outward(uri: &str) -> bool {
         .any(|scheme| uri.get(..scheme.len()).is_some_and(|head| head.eq_ignore_ascii_case(scheme)))
 }
 
-#[cfg(test)]
-mod outward_tests {
-    #[test]
-    fn web_and_mail_go_out_in_any_case() {
-        for uri in ["https://a.example/", "HTTPS://a.example/", "Http://a.example/", "MAILTO:x@a.example"] {
-            assert!(super::outward(uri), "{uri}");
-        }
-        for uri in ["ftp://a.example/", "file:///etc/passwd", "javascript:alert(1)", "httpsx://a", "ht", "\u{e9}https://"] {
-            assert!(!super::outward(uri), "{uri}");
-        }
-    }
-}
-
 /// A localized message.
 pub fn text(cx: &App, key: &str, args: &[(&str, &str)]) -> SharedString {
     ely_ui::i18n::text(cx, key, args)
@@ -402,3 +389,16 @@ pub trait Tabs: Host {
 }
 
 impl<H: Host> Tabs for H {}
+
+#[cfg(test)]
+mod outward_tests {
+    #[test]
+    fn web_and_mail_go_out_in_any_case() {
+        for uri in ["https://a.example/", "HTTPS://a.example/", "Http://a.example/", "MAILTO:x@a.example"] {
+            assert!(super::outward(uri), "{uri}");
+        }
+        for uri in ["ftp://a.example/", "file:///etc/passwd", "javascript:alert(1)", "httpsx://a", "ht", "\u{e9}https://"] {
+            assert!(!super::outward(uri), "{uri}");
+        }
+    }
+}
diff --git a/crates/ely-pdf-engine/tests/worker.rs b/crates/ely-pdf-engine/tests/worker.rs
index ce85ef2..941e8c8 100644
--- a/crates/ely-pdf-engine/tests/worker.rs
+++ b/crates/ely-pdf-engine/tests/worker.rs
@@ -205,11 +205,12 @@ fn big_png(path: &Path, side: u32) {
     let mut raw = Vec::new();
     let mut seed = 7u32;
     for _ in 0..side {
-        raw.push(0);
-        for _ in 0..side * 3 {
+        // Each row: filter byte none, then its noise.
+        let noise = (0..side * 3).map(|_| {
             seed = seed.wrapping_mul(1_103_515_245).wrapping_add(12_345);
-            raw.push((seed >> 16) as u8);
-        }
+            (seed >> 16) as u8
+        });
+        raw.extend(std::iter::once(0).chain(noise));
     }
     // zlib with stored blocks; Adler-32 at the end.
     let mut zlib = vec![0x78, 0x01];
@@ -246,7 +247,7 @@ fn a_failed_open_keeps_no_memory() {
     };
     // MuPDF's 256 MB store fills first; then nothing grows.
     for _ in 0..70 {
-        let refused = worker.open(&png).err().expect("not a PDF");
+        let refused = worker.open(&png).expect_err("not a PDF");
         assert!(refused.to_string().contains("not a PDF"), "{refused}");
     }
     let before = rss(worker.pid());
diff --git a/crates/ely-platform/src/locale.rs b/crates/ely-platform/src/locale.rs
index 8e2872c..9483b01 100644
--- a/crates/ely-platform/src/locale.rs
+++ b/crates/ely-platform/src/locale.rs
@@ -26,7 +26,7 @@ fn platform() -> String {
 
 #[cfg(target_os = "linux")]
 fn platform() -> String {
-    resolve_env(|key| env::value(key))
+    resolve_env(env::value)
 }
 
 #[cfg(target_os = "windows")]
diff --git a/crates/ely-ui/src/i18n.rs b/crates/ely-ui/src/i18n.rs
index 93f6d40..c1ca35d 100644
--- a/crates/ely-ui/src/i18n.rs
+++ b/crates/ely-ui/src/i18n.rs
@@ -155,8 +155,11 @@ pub fn install_as(locale: &'static str, cx: &mut App) {
     );
 }
 
+/// Keys and messages of one language.
+type Catalog = Vec<(&'static str, &'static str)>;
+
 /// The English and Chinese catalogs, every module's messages.
-fn catalogs() -> (Vec<(&'static str, &'static str)>, Vec<(&'static str, &'static str)>) {
+fn catalogs() -> (Catalog, Catalog) {
     let en: Vec<_> = EN
         .iter()
         .chain(office::EN)
diff --git a/crates/ely-ui/src/settings/storage.rs b/crates/ely-ui/src/settings/storage.rs
index 4b5c99d..7f710f0 100644
--- a/crates/ely-ui/src/settings/storage.rs
+++ b/crates/ely-ui/src/settings/storage.rs
@@ -18,10 +18,13 @@ use gpui::{AnyElement, App, Context, IntoElement, SharedString, WeakEntity};
 use super::window::SettingsView;
 use crate::i18n::text;
 
+/// Each kind's size, and whether a clear waits.
+type Usage = Vec<(Kind, u64, bool)>;
+
 /// Last read sizes and limits; a clear waiting or failed.
 #[derive(Default)]
 pub(crate) struct Storage {
-    usage: Option<Result<Vec<(Kind, u64, bool)>, SharedString>>,
+    usage: Option<Result<Usage, SharedString>>,
     limits: Option<Result<Limits, SharedString>>,
     /// A clear waiting for the user's yes.
     confirming: Option<Kind>,
diff --git a/crates/ely-web-content/examples/webprobe.rs b/crates/ely-web-content/examples/webprobe.rs
index 7e5a93e..23051ee 100644
--- a/crates/ely-web-content/examples/webprobe.rs
+++ b/crates/ely-web-content/examples/webprobe.rs
@@ -179,7 +179,7 @@ impl Probe {
             cx.background_executor()
                 .timer(Duration::from_millis(500))
                 .await;
-            let _ = view.update(cx, |view, _| view.run_js("report('edited')"));
+            view.update(cx, |view, _| view.run_js("report('edited')"));
         })
         .detach();
     }
diff --git a/crates/ely-web-content/src/engine.rs b/crates/ely-web-content/src/engine.rs
index 08b9bfe..fdbd106 100644
--- a/crates/ely-web-content/src/engine.rs
+++ b/crates/ely-web-content/src/engine.rs
@@ -284,7 +284,7 @@ pub fn start(data: &Path, cx: &mut App) -> Result<()> {
             let why = held(&cache).unwrap_or_else(|| "CEF did not initialize".into());
             log::error!("web: {why}");
             *FAILED.lock().expect("the start lock") = Some(why);
-            cx.update(|cx| crate::view::deliver(cx));
+            cx.update(crate::view::deliver);
             return;
         }
         log::info!("web: CEF started, cache {}", cache.display());
@@ -310,7 +310,7 @@ pub fn start(data: &Path, cx: &mut App) -> Result<()> {
             run_later();
             make_browsers();
             do_message_loop_work();
-            cx.update(|cx| crate::view::deliver(cx));
+            cx.update(crate::view::deliver);
             // As cefclient: CEF does not ask for all work.
             due = Some(FALLBACK);
         }
diff --git a/crates/ely-web-content/src/handlers.rs b/crates/ely-web-content/src/handlers.rs
index f429dae..9d87ef2 100644
--- a/crates/ely-web-content/src/handlers.rs
+++ b/crates/ely-web-content/src/handlers.rs
@@ -314,7 +314,7 @@ wrap_load_handler! {
             failed_url: Option<&CefString>,
         ) {
             // A stopped load is no failure; a fenced one is.
-            if !frame.is_some_and(|frame| frame.is_main() == 1) || error_code == Errorcode::ABORTED {
+            if frame.is_none_or(|frame| frame.is_main() != 1) || error_code == Errorcode::ABORTED {
                 return;
             }
             let text = error_text.map(CefString::to_string).unwrap_or_default();
diff --git a/crates/ely-web-content/src/view.rs b/crates/ely-web-content/src/view.rs
index 5ad9fef..c12e6c5 100644
--- a/crates/ely-web-content/src/view.rs
+++ b/crates/ely-web-content/src/view.rs
@@ -64,9 +64,12 @@ pub struct WebView {
     /// Shown instead of the page until reloaded.
     fault: Option<String>,
     /// Takes a paste before the page; true when it did.
-    pub(crate) paste: Option<std::rc::Rc<dyn Fn(&mut Window, &mut App) -> bool>>,
+    pub(crate) paste: Option<Paste>,
 }
 
+/// Takes a paste before the page; true when it did.
+pub(crate) type Paste = std::rc::Rc<dyn Fn(&mut Window, &mut App) -> bool>;
+
 impl EventEmitter<Event> for WebView {}
 
 impl Focusable for WebView {