Clear ddrescue pane when resizing

This replaces the clear every 30s/60s/etc.  It's only enabled while
ddrescue is running to prevent clearing warning messages if printed.

scripts/wk/clone/ddrescue.py

@@ -1953,6 +1953,7 @@ def run_ddrescue(state, block_pair, pass_name, settings, dry_run=True) -> None:
   poweroff_source_after_idle = True
   state.update_progress_pane('Active')
   state.ui.clear_current_pane()
+  state.ui.clear_on_resize = True
   warning_message = ''
 
   def _poweroff_source_drive(idle_minutes) -> None:
@@ -2030,9 +2031,6 @@ def run_ddrescue(state, block_pair, pass_name, settings, dry_run=True) -> None:
         exe.stop_process(proc)
         cli.print_error(warning_message)
         break
-
-      # Clear ddrescue pane
-      state.ui.clear_current_pane()
     _i += 1
 
     # Update progress
@@ -2062,6 +2060,7 @@ def run_ddrescue(state, block_pair, pass_name, settings, dry_run=True) -> None:
   # NOTE: Using 'Active' here to avoid flickering between block pairs
   block_pair.update_progress(pass_name)
   state.update_progress_pane('Active')
+  state.ui.clear_on_resize = False
 
   # Check result
   if proc.poll():

scripts/wk/ui/tmux.py

@@ -40,7 +40,11 @@ def clear_pane(pane_id: str | None = None) -> None:
     run_program(cmd, check=False)
 
 
-def fix_layout(layout: dict[str, dict[str, Any]], forced: bool = False) -> None:
+def fix_layout(
+    layout: dict[str, dict[str, Any]],
+    clear_on_resize: bool = False,
+    forced: bool = False,
+    ) -> None:
   """Fix pane sizes based on layout."""
   resize_kwargs = []
 
@@ -49,6 +53,10 @@ def fix_layout(layout: dict[str, dict[str, Any]], forced: bool = False) -> None:
     # Layout should be fine
     return
 
+  # Clear current pane if needed
+  if clear_on_resize:
+    clear_pane()
+
   # Remove closed panes
   for data in layout.values():
     data['Panes'] = [pane for pane in data['Panes'] if poll_pane(pane)]

scripts/wk/ui/tui.py

@@ -31,6 +31,7 @@ TMUX_LAYOUT = { # NOTE: This needs to be in order from top to bottom
 class TUI():
   """Object for tracking TUI elements."""
   def __init__(self, title_text: str | None = None):
+    self.clear_on_resize = False
     self.layout: dict[str, dict[str, Any]] = deepcopy(TMUX_LAYOUT)
     self.side_width: int = TMUX_SIDE_WIDTH
     self.title_text: str = title_text if title_text else 'Title Text'
@@ -159,7 +160,7 @@ class TUI():
   def fix_layout(self, forced: bool = True) -> None:
     """Fix tmux layout based on self.layout."""
     try:
-      tmux.fix_layout(self.layout, forced=forced)
+      tmux.fix_layout(self.layout, clear_on_resize=self.clear_on_resize, forced=forced)
     except RuntimeError:
       # Assuming self.panes changed while running
       pass