fix(macos): expose the terminal view as an accessibility text area

crates/ember-app/src/main.rs

@@ -1012,6 +1012,8 @@ impl ApplicationHandler<EmberEvent> for App {
 
             let mut win = WindowState::new(renderer, tree);
             win.px = px;
+            win.ax =
+                ember_platform::accessibility::AxTextArea::install(&window, shared.wake.clone());
             if !win.spawn_session(
                 &mut shared,
                 session,
@@ -1767,6 +1769,7 @@ impl ApplicationHandler<EmberEvent> for App {
                         win.render_ema_ms
                     )));
                 }
+                win.refresh_ax();
                 let t = Instant::now();
                 match win.renderer.render() {
                     // A drawable came through — the surface is ground truth, so
@@ -1806,6 +1809,25 @@ impl ApplicationHandler<EmberEvent> for App {
             return;
         };
 
+        // Accessibility clients (dictation tools) reading or writing a
+        // window's terminal view: an insert pastes into that window's focused
+        // pane, exactly like Cmd+V; a first read starts its text updates.
+        for req in ember_platform::accessibility::drain() {
+            use ember_platform::accessibility::AxRequest;
+            let (AxRequest::Insert { view, .. } | AxRequest::Refresh { view }) = &req;
+            let Some(w) = self
+                .windows
+                .values()
+                .find(|w| w.ax.as_ref().is_some_and(|ax| ax.view() == *view))
+            else {
+                continue;
+            };
+            match req {
+                AxRequest::Insert { text, .. } => w.paste_into_focused(shared, &text),
+                AxRequest::Refresh { .. } => w.refresh_ax(),
+            }
+        }
+
         // Poll every session's pixel lane, routing each one's deltas to the
         // window that actually owns it (`session_window`) — "drain only the
         // focused window" (the pre-multi-window shape of this function) would
@@ -2870,6 +2892,7 @@ fn open_window(
 
     let mut win = WindowState::new(renderer, tree);
     win.px = px;
+    win.ax = ember_platform::accessibility::AxTextArea::install(&window, shared.wake.clone());
     win.sync_layout(shared);
     win.apply_appearance(shared);
     win.renderer.window().request_redraw();

crates/ember-app/src/window_state.rs

@@ -477,6 +477,9 @@ pub(crate) struct WindowState {
     /// IME composition in progress (preedit text); non-empty = composing,
     /// during which raw key events are suppressed (they belong to the IME).
     pub(crate) ime_preedit: String,
+    /// This window's view registered as an accessibility text area (macOS),
+    /// so dictation tools can insert into it; `None` elsewhere.
+    pub(crate) ax: Option<ember_platform::accessibility::AxTextArea>,
     /// Command palette (Cmd+Shift+P): open flag, query, selected row index
     /// (into the CURRENT filtered list).
     pub(crate) palette_open: bool,
@@ -853,6 +856,7 @@ impl WindowState {
             search_query: String::new(),
             search_count: None,
             ime_preedit: String::new(),
+            ax: None,
             palette_open: false,
             palette_query: String::new(),
             palette_sel: 0,
@@ -1581,6 +1585,21 @@ impl WindowState {
         self.send_to_focused(shared, bracket_paste(text, bracketed));
     }
 
+    /// Publish the focused pane's screen text + cursor to the accessibility
+    /// text area, once a client has started reading it (no cost otherwise).
+    pub(crate) fn refresh_ax(&self) {
+        let Some(ax) = self.ax.as_ref().filter(|ax| ax.active()) else {
+            return;
+        };
+        let Some(grid) = self
+            .focused_session_id()
+            .and_then(|id| self.renderer.grid(&id))
+        else {
+            return;
+        };
+        ax.set_text(grid.screen_text(), grid.cursor.row, grid.cursor.col);
+    }
+
     /// A file dropped from the OS (Finder / file manager) onto this window:
     /// insert its shell-escaped path plus a trailing space at the focused
     /// pane's prompt, through the paste path (bracketed-paste aware) —

crates/ember-platform/Cargo.toml

@@ -14,7 +14,7 @@ arboard.workspace = true
 [target.'cfg(target_os = "macos")'.dependencies]
 objc2 = "0.6"
 objc2-app-kit = { version = "0.3", features = ["NSApplication", "NSImage", "NSResponder", "NSWorkspace"] }
-objc2-foundation = { version = "0.3", features = ["NSData", "NSString", "NSProcessInfo"] }
+objc2-foundation = { version = "0.3", features = ["NSData", "NSString", "NSProcessInfo", "NSRange"] }
 # default features pull muda's Linux GTK backend (gtk3 → glib), which Ember
 # never uses — the menu is macOS-only (NSMenu via objc2); other platforms get
 # an inert stub. Dropping them keeps the vulnerable glib (RUSTSEC-2024-0429)