nav: tell the user something is happening when Esc needs a decompile

Going back to a function that isn't currently decompiled has to decompile it
first, and until that lands both panes still show where you were — so Esc read as
a no-op and people press it again.

action_back now sets a status the moment it pops ("◂ back to <name>…"), which
_show_active then upgrades to "<name> — decompiling…" with the spinner overlay
up. Verified: immediately after Esc, with no pause at all, the status says
decompiling and dec.loading is True; it settles on the target a moment later.

Suite 192/0.

1 files changed, 6 insertions, 1 deletions

diff --git a/idatui/app.py b/idatui/app.py
index 3c23784..57ec7df 100644
--- a/idatui/app.py
+++ b/idatui/app.py
@@ -4077,7 +4077,12 @@ class IdaTui(App):
         if len(self._nav) > 1:
             self._nav_seq += 1  # invalidate any navigation still in flight
             self._nav.pop()
-            self._open_entry(self._nav[-1], push=False)
+            # Say something immediately: going back can need a decompile, and
+            # until it lands the panes still show where you were — with no
+            # feedback Esc reads as a no-op.
+            dest = self._nav[-1]
+            self._status(f"\u25c2 back to {dest.name}\u2026")
+            self._open_entry(dest, push=False)
         elif self.query_one("#left", FunctionsPanel).display:
             table.focus()
         else: