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Make Item and Button generic over the underlying view

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This commit is contained in:
Rapptz 2021-04-26 21:34:01 -04:00
parent 4c0ebc9221
commit ed9badcddf
2 changed files with 8 additions and 6 deletions
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5
discord/ui/button.py
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@ -41,7 +41,7 @@ __all__ = (
)
if TYPE_CHECKING:
from ..components import Component
from .view import View
_custom_emoji = re.compile(r'<?(?P<animated>a)?:?(?P<name>[A-Za-z0-9\_]+):(?P<id>[0-9]{13,20})>?')
@ -63,9 +63,10 @@ def _to_partial_emoji(obj: Union[str, PartialEmoji], *, _custom_emoji=_custom_em
B = TypeVar('B', bound='Button')
V = TypeVar('V', bound='View', covariant=True)
class Button(Item):
class Button(Item[V]):
"""Represents a UI button.
.. versionadded:: 2.0

9
discord/ui/item.py
View File

@ -24,7 +24,7 @@ DEALINGS IN THE SOFTWARE.
from __future__ import annotations
from typing import Any, Callable, Coroutine, Dict, Optional, TYPE_CHECKING, Tuple, Type, TypeVar
from typing import Any, Callable, Coroutine, Dict, Generic, Optional, TYPE_CHECKING, Tuple, Type, TypeVar
from ..interactions import Interaction
@ -38,10 +38,11 @@ if TYPE_CHECKING:
from ..components import Component
I = TypeVar('I', bound='Item')
V = TypeVar('V', bound='View', covariant=True)
ItemCallbackType = Callable[[Any, I, Interaction], Coroutine[Any, Any, Any]]
class Item:
class Item(Generic[V]):
"""Represents the base UI item that all UI components inherit from.
The current UI items supported are:
@ -52,7 +53,7 @@ class Item:
__item_repr_attributes__: Tuple[str, ...] = ('group_id',)
def __init__(self):
self._view: Optional[View] = None
self._view: Optional[V] = None
self.group_id: Optional[int] = None
def to_component_dict(self) -> Dict[str, Any]:
@ -77,7 +78,7 @@ class Item:
return f'<{self.__class__.__name__} {attrs}>'
@property
def view(self) -> Optional[View]:
def view(self) -> Optional[V]:
"""Optional[:class:`View`]: The underlying view for this item."""
return self._view