v0.5.11: fix terminal focus — toggle ACTIVE on Focus messages

- tty: read_line_from_queue() now takes &mut Terminal and handles
  TaskMsg::Focus: Focus(true) sets ACTIVE to the terminal,
  Focus(false) clears it.  This fixes the bug where the console
  shell's gop_print! output was redirected to the soft terminal
  even after focus switched away from it.
- shell: run_windowed() passes the terminal through to read_line_from_queue.
- wm: remove noisy per-key debug logging from pump_main.

6 files changed, 25 insertions, 13 deletions

diff --git a/Cargo.lock b/Cargo.lock
index 76b5a2a..24b6a35 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4,7 +4,7 @@ version = 4
 
 [[package]]
 name = "rsdos"
-version = "0.5.10"
+version = "0.5.11"
 dependencies = [
  "rsnix",
  "shell",
@@ -19,7 +19,7 @@ dependencies = [
 
 [[package]]
 name = "rsnix"
-version = "0.5.10"
+version = "0.5.11"
 
 [[package]]
 name = "rspaint"
@@ -30,7 +30,7 @@ dependencies = [
 
 [[package]]
 name = "shell"
-version = "0.5.10"
+version = "0.5.11"
 dependencies = [
  "rsdosedit",
  "rsnix",
diff --git a/Cargo.toml b/Cargo.toml
index 90d28c7..26e5874 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -3,7 +3,7 @@ resolver = "2"
 members = ["rsnix", "shell", "rsdos", "rsdosedit", "rspaint"]
 
 [workspace.package]
-version = "0.5.10"
+version = "0.5.11"
 edition = "2024"
 
 # no_std UEFI kernel: no unwinder available, so panic must abort.
diff --git a/rsdos/src/main.rs b/rsdos/src/main.rs
index e5fb6dd..d1ed506 100644
--- a/rsdos/src/main.rs
+++ b/rsdos/src/main.rs
@@ -483,7 +483,7 @@ fn terminal_entry() {
     rsnix::vt::set_active(&mut term as *mut Terminal);
 
     // Run the shell — it owns input, line editing, and command execution.
-    shell::run_windowed();
+    shell::run_windowed(&mut term);
 
     // Shell exited (^D or window close).  Clean up.
     rsnix::serial_println!("term: shell exited, cleaning up");
diff --git a/rsnix/src/tty.rs b/rsnix/src/tty.rs
index 918f6e0..c44dca8 100644
--- a/rsnix/src/tty.rs
+++ b/rsnix/src/tty.rs
@@ -139,7 +139,14 @@ pub fn read_line() -> LineInput {
 /// windowed shells).  Same semantics as `read_line` but keys arrive as
 /// `TaskMsg::Key` instead of from the global PS/2 queue.  Returns `None`
 /// on `TaskMsg::Close` (window was closed).
-pub fn read_line_from_queue() -> Option<LineInput> {
+/// Read one line in canonical mode from the task's message queue (for
+/// windowed shells).  Same semantics as `read_line` but keys arrive as
+/// `TaskMsg::Key` instead of from the global PS/2 queue.  Returns `None`
+/// on `TaskMsg::Close` (window was closed).
+///
+/// Handles `TaskMsg::Focus` to toggle the global `ACTIVE` redirect so
+/// gop_print! goes to the right terminal buffer.
+pub fn read_line_from_queue(term: &mut crate::vt::Terminal) -> Option<LineInput> {
     crate::vt::sync_scroll();
     let mut buf = strbuf::String::<LINE_BUF_SIZE>::new();
     loop {
@@ -191,6 +198,13 @@ pub fn read_line_from_queue() -> Option<LineInput> {
                 }
                 _ => {}
             },
+            crate::sched::TaskMsg::Focus(gained) => {
+                if gained {
+                    crate::vt::set_active(term as *mut crate::vt::Terminal);
+                } else {
+                    crate::vt::set_active(core::ptr::null_mut());
+                }
+            }
             crate::sched::TaskMsg::Close => return None,
             _ => {}
         }
diff --git a/rsnix/src/wm.rs b/rsnix/src/wm.rs
index 05781e8..71c310f 100644
--- a/rsnix/src/wm.rs
+++ b/rsnix/src/wm.rs
@@ -617,12 +617,10 @@ pub fn spawn_input_pump() -> Option<usize> {
 
 fn pump_main() {
     loop {
-        if focused().is_some() {
+        if let Some(id) = focused() {
+            let o = owner(id).unwrap_or(0);
             while let Some(ev) = crate::ps2::try_poll_key().or_else(crate::uhci::try_poll_key) {
-                if !handle_key(ev)
-                    && let Some(id) = focused()
-                    && let Some(o) = owner(id)
-                {
+                if !handle_key(ev) {
                     let _ = crate::sched::send(o, TaskMsg::Key(ev));
                 }
             }
diff --git a/shell/src/lib.rs b/shell/src/lib.rs
index 6077f35..f2a0e6e 100644
--- a/shell/src/lib.rs
+++ b/shell/src/lib.rs
@@ -97,12 +97,12 @@ pub fn run() -> ! {
 /// reads from the task's message queue (Fed by the WM input pump) and
 /// writes to the active terminal (set by the caller via `vt::set_active`).
 /// Returns when the window is closed (Close message or ^D on empty line).
-pub fn run_windowed() {
+pub fn run_windowed(term: &mut rsnix::vt::Terminal) {
     term_println(&alloc::format!("rs-dos v{}", env!("CARGO_PKG_VERSION")));
     loop {
         rsnix::vt::sync_scroll();
         term_print("> ");
-        match tty::read_line_from_queue() {
+        match tty::read_line_from_queue(term) {
             None => return, // window closed
             Some(LineInput::Interrupted) => continue,
             Some(LineInput::Eof) => return, // ^D in windowed mode = close