Add temporary diagnostics for two live-reproduced bugs

1. A popup's xdg_popup.grab (Firefox's own right-click menu, concretely)
   receiving zero pointer input at all - no hover highlight, no click
   effect, not even dismiss-on-miss - logs whether grab_popup actually
   succeeds, since a silent failure there would explain exactly this.

2. srd dispatch activate_workspace returning {"ok":true} without ever
   changing the current workspace, confirmed via a raw socket request
   bypassing the CLI entirely. switch_workspace's own logic reads
   correct; logs its actual inputs/state to find out why the real
   process disagrees with it.

Remove once both are resolved.

2 files changed, 20 insertions, 3 deletions

diff --git a/crates/core/src/manager/workspaces.rs b/crates/core/src/manager/workspaces.rs
index 6ffb21b..ddc8341 100644
--- a/crates/core/src/manager/workspaces.rs
+++ b/crates/core/src/manager/workspaces.rs
@@ -50,7 +50,14 @@ impl WindowManager {
     /// doesn't need its own separate bookkeeping.
     pub fn switch_workspace(&mut self, id: WorkspaceId) {
         let target = if self.auto_back_and_forth && id == self.current_workspace { self.previous_workspace } else { id };
-        if self.workspaces.iter().any(|w| w.id == target) && target != self.current_workspace {
+        let exists = self.workspaces.iter().any(|w| w.id == target);
+        log::warn!(
+            "SWITCH-WS-DIAG requested_id={id} auto_back_and_forth={} current={} previous={} target={target} exists={exists}",
+            self.auto_back_and_forth,
+            self.current_workspace,
+            self.previous_workspace
+        );
+        if exists && target != self.current_workspace {
             self.previous_workspace = self.current_workspace;
             self.current_workspace = target;
         }
diff --git a/crates/wayland/src/protocols.rs b/crates/wayland/src/protocols.rs
index 0b0eea2..391f665 100644
--- a/crates/wayland/src/protocols.rs
+++ b/crates/wayland/src/protocols.rs
@@ -346,9 +346,19 @@ impl XdgShellHandler for CompState {
     /// `resize_request` already ignore the same parameter.
     fn grab(&mut self, surface: PopupSurface, _seat: wl_seat::WlSeat, serial: Serial) {
         let popup = PopupKind::Xdg(surface);
-        let Ok(root) = find_popup_root_surface(&popup) else { return };
+        let Ok(root) = find_popup_root_surface(&popup) else {
+            log::warn!("POPUP-GRAB-DIAG find_popup_root_surface failed");
+            return;
+        };
         let seat = self.seat.clone();
-        let Ok(grab) = self.popups.grab_popup(root, popup, &seat, serial) else { return };
+        let grab = match self.popups.grab_popup(root, popup, &seat, serial) {
+            Ok(g) => g,
+            Err(e) => {
+                log::warn!("POPUP-GRAB-DIAG grab_popup failed: {e:?}");
+                return;
+            }
+        };
+        log::warn!("POPUP-GRAB-DIAG grab established, has_pointer={} has_keyboard={}", seat.get_pointer().is_some(), seat.get_keyboard().is_some());
         if let Some(keyboard) = seat.get_keyboard() {
             keyboard.set_grab(self, PopupKeyboardGrab::new(&grab), serial);
         }