185 lines
5.5 KiB
Python
185 lines
5.5 KiB
Python
"""
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The MIT License (MIT)
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Copyright (c) 2015-2021 Rapptz
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Copyright (c) 2021-present Disnake Development
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Permission is hereby granted, free of charge, to any person obtaining a
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copy of this software and associated documentation files (the "Software"),
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to deal in the Software without restriction, including without limitation
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the rights to use, copy, modify, merge, publish, distribute, sublicense,
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and/or sell copies of the Software, and to permit persons to whom the
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Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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DEALINGS IN THE SOFTWARE.
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"""
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from __future__ import annotations
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from abc import ABC, abstractmethod
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from typing import (
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TYPE_CHECKING,
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Any,
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Callable,
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Coroutine,
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Generic,
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Optional,
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Protocol,
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Tuple,
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Type,
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TypeVar,
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overload,
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)
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__all__ = ("Item", "WrappedComponent")
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I = TypeVar("I", bound="Item")
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V = TypeVar("V", bound="View", covariant=True)
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if TYPE_CHECKING:
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from ..components import NestedComponent
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from ..enums import ComponentType
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from ..interactions import MessageInteraction
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from ..types.components import Component as ComponentPayload
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from .view import View
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ItemCallbackType = Callable[[Any, I, MessageInteraction], Coroutine[Any, Any, Any]]
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class WrappedComponent(ABC):
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"""Represents the base UI component that all UI components inherit from.
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The following classes implement this ABC:
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- :class:`disnake.ui.Button`
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- :class:`disnake.ui.Select`
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- :class:`disnake.ui.TextInput`
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.. versionadded:: 2.4
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"""
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__repr_attributes__: Tuple[str, ...]
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@property
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@abstractmethod
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def _underlying(self) -> NestedComponent:
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...
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@property
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@abstractmethod
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def width(self) -> int:
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...
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def __repr__(self) -> str:
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attrs = " ".join(f"{key}={getattr(self, key)!r}" for key in self.__repr_attributes__)
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return f"<{type(self).__name__} {attrs}>"
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@property
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def type(self) -> ComponentType:
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return self._underlying.type
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def to_component_dict(self) -> ComponentPayload:
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return self._underlying.to_dict()
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class Item(WrappedComponent, Generic[V]):
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"""Represents the base UI item that all UI items inherit from.
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This class adds more functionality on top of the :class:`WrappedComponent` base class.
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This functionality mostly relates to :class:`disnake.ui.View`.
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The current UI items supported are:
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- :class:`disnake.ui.Button`
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- :class:`disnake.ui.Select`
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.. versionadded:: 2.0
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"""
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__repr_attributes__: Tuple[str, ...] = ("row",)
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def __init__(self):
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self._view: Optional[V] = None
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self._row: Optional[int] = None
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self._rendered_row: Optional[int] = None
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# This works mostly well but there is a gotcha with
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# the interaction with from_component, since that technically provides
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# a custom_id most dispatchable items would get this set to True even though
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# it might not be provided by the library user. However, this edge case doesn't
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# actually affect the intended purpose of this check because from_component is
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# only called upon edit and we're mainly interested during initial creation time.
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self._provided_custom_id: bool = False
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def refresh_component(self, component: NestedComponent) -> None:
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return None
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def refresh_state(self, interaction: MessageInteraction) -> None:
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return None
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@classmethod
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def from_component(cls: Type[I], component: NestedComponent) -> I:
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return cls()
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def is_dispatchable(self) -> bool:
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return False
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def is_persistent(self) -> bool:
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return self._provided_custom_id
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@property
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def row(self) -> Optional[int]:
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return self._row
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@row.setter
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def row(self, value: Optional[int]):
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if value is None:
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self._row = None
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elif 5 > value >= 0:
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self._row = value
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else:
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raise ValueError("row cannot be negative or greater than or equal to 5")
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@property
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def view(self) -> Optional[V]:
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"""Optional[:class:`View`]: The underlying view for this item."""
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return self._view
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async def callback(self, interaction: MessageInteraction, /):
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"""|coro|
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The callback associated with this UI item.
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This can be overriden by subclasses.
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Parameters
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----------
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interaction: :class:`.MessageInteraction`
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The interaction that triggered this UI item.
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"""
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pass
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I_co = TypeVar("I_co", bound=Item, covariant=True)
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# while the decorators don't actually return a descriptor that matches this protocol,
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# this protocol ensures that type checkers don't complain about statements like `self.button.disabled = True`,
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# which work as `View.__init__` replaces the handler with the item
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class DecoratedItem(Protocol[I_co]):
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@overload
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def __get__(self, obj: None, objtype: Any) -> ItemCallbackType:
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...
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@overload
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def __get__(self, obj: Any, objtype: Any) -> I_co:
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...
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