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This commit is contained in:
Will McGugan
2023-02-22 15:39:00 +00:00
parent 5388331bfa
commit 81e81f4f98
1 changed files with 12 additions and 7 deletions
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19
src/textual/dom.py
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@@ -1,12 +1,12 @@
from __future__ import annotations from __future__ import annotations
import re import re
from functools import lru_cache
from inspect import getfile from inspect import getfile
from typing import ( from typing import (
TYPE_CHECKING, TYPE_CHECKING,
ClassVar, ClassVar,
Iterable, Iterable,
Iterator,
Sequence, Sequence,
Type, Type,
TypeVar, TypeVar,
@@ -224,13 +224,14 @@ class DOMNode(MessagePump):
Reactive._initialize_object(self) Reactive._initialize_object(self)
@property @property
def _node_bases(self) -> Iterator[Type[DOMNode]]: def _node_bases(self) -> Sequence[Type[DOMNode]]:
"""The DOMNode bases classes (including self.__class__)""" """The DOMNode bases classes (including self.__class__)"""
# Node bases are in reversed order so that the base class is lower priority # Node bases are in reversed order so that the base class is lower priority
return self._css_bases(self.__class__) return self._css_bases(self.__class__)
@classmethod @classmethod
def _css_bases(cls, base: Type[DOMNode]) -> Iterator[Type[DOMNode]]: @lru_cache(maxsize=None)
def _css_bases(cls, base: Type[DOMNode]) -> Sequence[Type[DOMNode]]:
"""Get the DOMNode base classes, which inherit CSS. """Get the DOMNode base classes, which inherit CSS.
Args: Args:
@@ -239,9 +240,10 @@ class DOMNode(MessagePump):
Returns: Returns:
An iterable of DOMNode classes. An iterable of DOMNode classes.
""" """
classes = []
_class = base _class = base
while True: while True:
yield _class classes.append(_class)
if not _class._inherit_css: if not _class._inherit_css:
break break
for _base in _class.__bases__: for _base in _class.__bases__:
@@ -250,6 +252,7 @@ class DOMNode(MessagePump):
break break
else: else:
break break
return classes
@classmethod @classmethod
def _merge_bindings(cls) -> Bindings: def _merge_bindings(cls) -> Bindings:
@@ -314,7 +317,9 @@ class DOMNode(MessagePump):
return css_stack return css_stack
def _get_component_classes(self) -> set[str]: @classmethod
@lru_cache(maxsize=None)
def _get_component_classes(cls) -> Sequence[str]:
"""Gets the component classes for this class and inherited from bases. """Gets the component classes for this class and inherited from bases.
Component classes are inherited from base classes, unless Component classes are inherited from base classes, unless
@@ -325,12 +330,12 @@ class DOMNode(MessagePump):
""" """
component_classes: set[str] = set() component_classes: set[str] = set()
for base in self._node_bases: for base in cls._css_bases(cls):
component_classes.update(base.__dict__.get("COMPONENT_CLASSES", set())) component_classes.update(base.__dict__.get("COMPONENT_CLASSES", set()))
if not base.__dict__.get("_inherit_component_classes", True): if not base.__dict__.get("_inherit_component_classes", True):
break break
return component_classes return sorted(component_classes)
@property @property
def parent(self) -> DOMNode | None: def parent(self) -> DOMNode | None: