Also output layout state in kitty @ ls

kitty/layout/base.py

@@ -5,8 +5,8 @@
 from functools import partial
 from itertools import repeat
 from typing import (
-    Dict, Generator, Iterable, Iterator, List, NamedTuple, Optional, Sequence,
-    Tuple
+    Any, Dict, Generator, Iterable, Iterator, List, NamedTuple, Optional,
+    Sequence, Tuple
 )
 
 from kitty.borders import BorderColor
@@ -380,3 +380,6 @@ class Layout:
 
     def layout_action(self, action_name: str, args: Sequence[str], all_windows: WindowList) -> Optional[bool]:
         pass
+
+    def layout_state(self) -> Dict[str, Any]:
+        return {}

kitty/layout/grid.py

@@ -6,7 +6,7 @@ from functools import lru_cache
 from itertools import repeat
 from math import ceil, floor
 from typing import (
-    Callable, Dict, Generator, List, Optional, Sequence, Set, Tuple
+    Any, Callable, Dict, Generator, List, Optional, Sequence, Set, Tuple
 )
 
 from kitty.borders import BorderColor
@@ -294,3 +294,9 @@ class Grid(Layout):
             'left': side(row, col, -1) if col else [],
             'right': side(row, col, 1) if col < ncols - 1 else [],
         }
+
+    def layout_state(self) -> Dict[str, Any]:
+        return {
+            'biased_cols': self.biased_cols,
+            'biased_rows': self.biased_rows
+        }

kitty/layout/splits.py

@@ -3,7 +3,7 @@
 # License: GPLv3 Copyright: 2020, Kovid Goyal <kovid at kovidgoyal.net>
 
 from typing import (
-    Collection, Dict, Generator, List, NamedTuple, Optional, Sequence, Tuple,
+    Any, Collection, Dict, Generator, List, NamedTuple, Optional, Sequence, Tuple,
     Union
 )
 
@@ -546,3 +546,21 @@ class Splits(Layout):
                     if swap:
                         pair.one, pair.two = pair.two, pair.one
                     return True
+
+    def layout_state(self) -> Dict[str, Any]:
+
+        def add_pair(p: Pair) -> Dict[str, Any]:
+            ans: Dict[str, Any] = {}
+            ans['horizontal'] = p.horizontal
+            ans['bias'] = p.bias
+            if isinstance(p.one, Pair):
+                ans['one'] = add_pair(p.one)
+            elif p.one is not None:
+                ans['one'] = p.one
+            if isinstance(p.two, Pair):
+                ans['two'] = add_pair(p.two)
+            elif p.one is not None:
+                ans['two'] = p.two
+            return ans
+
+        return {'pairs': add_pair(self.pairs_root)}

kitty/layout/tall.py

@@ -3,7 +3,7 @@
 # License: GPLv3 Copyright: 2020, Kovid Goyal <kovid at kovidgoyal.net>
 
 from itertools import islice, repeat
-from typing import Dict, Generator, List, Optional, Sequence, Tuple
+from typing import Any, Dict, Generator, List, Optional, Sequence, Tuple
 
 from kitty.borders import BorderColor
 from kitty.conf.utils import to_bool
@@ -278,6 +278,13 @@ class Tall(Layout):
         )
         yield from perp_borders[1:-1]
 
+    def layout_state(self) -> Dict[str, Any]:
+        return {
+            'num_full_size_windows': self.num_full_size_windows,
+            'main_bias': self.main_bias,
+            'biased_map': self.biased_map
+        }
+
 
 class Fat(Tall):
 

kitty/layout/vertical.py

@@ -2,7 +2,7 @@
 # vim:fileencoding=utf-8
 # License: GPLv3 Copyright: 2020, Kovid Goyal <kovid at kovidgoyal.net>
 
-from typing import Dict, Generator, Iterable, List, Tuple
+from typing import Any, Dict, Generator, Iterable, List, Tuple
 
 from kitty.borders import BorderColor
 from kitty.types import Edges
@@ -130,6 +130,9 @@ class Vertical(Layout):
             return {'left': before, 'right': after, 'top': [], 'bottom': []}
         return {'top': before, 'bottom': after, 'left': [], 'right': []}
 
+    def layout_state(self) -> Dict[str, Any]:
+        return {'biased_map': self.biased_map}
+
 
 class Horizontal(Vertical):
 

kitty/tabs.py

@@ -38,6 +38,7 @@ class TabDict(TypedDict):
     is_focused: bool
     title: str
     layout: str
+    layout_state: Dict[str, Any]
     windows: List[WindowDict]
     active_window_history: List[int]
 
@@ -671,6 +672,7 @@ class TabManager:  # {{{
                 'is_focused': tab is active_tab,
                 'title': tab.name or tab.title,
                 'layout': str(tab.current_layout.name),
+                'layout_state': tab.current_layout.layout_state(),
                 'windows': list(tab.list_windows(active_window, self_window)),
                 'active_window_history': list(tab.windows.active_window_history),
             }