Revert "nav: bind back to backspace as well — a bare Esc isn't reliable in a terminal"

This reverts commit baf599e143dbf23f33886ba03a60c5d9f3c19078.

2 files changed, 1 insertions, 34 deletions

diff --git a/docs/TEXTUAL_NOTES.md b/docs/TEXTUAL_NOTES.md
index 6f486ce..4bf7fcb 100644
--- a/docs/TEXTUAL_NOTES.md
+++ b/docs/TEXTUAL_NOTES.md
@@ -80,31 +80,3 @@ Hard-won Textual behaviour and the patterns this app relies on. Pairs with
   failures. Re-run on a warm session before trusting a regression.
 - Edits mutate the `.i64` — revert renames (via API) for idempotency; use a
   PID-unique temp name to dodge collisions from a prior crashed run.
-
-
-## A bare Esc is ambiguous in a terminal
-
-Symptom: `Esc` (bound to history-back) appears to do nothing, and only a *second*
-press works. It looks like a widget is swallowing the first one.
-
-It isn't. `\x1b` is both the Escape key AND the lead byte of every arrow /
-function-key sequence (`ESC [ C` is right-arrow). If the terminal or tmux merges
-a lone Esc with what follows, the app receives a different key entirely.
-
-Confirmed on a live session via the RPC `state` dump, before and after one Esc:
-
-    nav_depth   3  ->  3      (action_back never ran)
-    cursor.col  19 -> 20      (+1 column == `right`)
-
-The keypress arrived as a right-arrow. Nothing in the nav path touches
-`cursor_x`, and `modal` was null, so no widget-level binding was involved.
-
-Two consequences:
-
-* Don't debug this in application code. Check `nav_depth` in the state dump
-  first: if the action didn't run at all, it's the input layer, not the logic.
-* tmux's `escape-time` (default 500ms) is the usual culprit; `set -sg
-  escape-time 10` normally fixes it.
-
-`back` is therefore bound to `escape,backspace`. Backspace is unambiguous, so
-history navigation never depends on a byte the terminal can reinterpret.
diff --git a/idatui/app.py b/idatui/app.py
index 5898489..57ec7df 100644
--- a/idatui/app.py
+++ b/idatui/app.py
@@ -3150,12 +3150,7 @@ class IdaTui(App):
         Binding("ctrl+b", "toggle_functions", "Names", show=False),
         Binding("tab,shift+tab", "toggle_view", "Disasm/Pseudocode", priority=True),
         Binding("ctrl+s", "save", "Save"),
-        # Esc is IDA's muscle memory, but a bare \x1b is ambiguous in terminals:
-        # it's also the lead byte of every arrow/function-key sequence, so a
-        # terminal or tmux that merges it (see tmux escape-time) delivers the
-        # keypress as e.g. "right" and back silently doesn't happen. Backspace
-        # is unambiguous and always works.
-        Binding("escape,backspace", "back", "Back"),
+        Binding("escape", "back", "Back"),
     ]
 
     def __init__(self, open_path: str | None = None, keepalive: bool = True,