rewrite: Refactor ui utils, add pagers.

bot/utils/ui/hooked.py

@@ -0,0 +1,46 @@
+from discord.ui.button import Button
+
+from .leo import LeoUI
+
+__all__ = (
+    'HookedItem',
+    'AButton',
+    'AsComponents'
+)
+
+
+class HookedItem:
+    """
+    Mixin for Item classes allowing an instance to be used as a callback decorator.
+    """
+    def __init__(self, *args, pass_kwargs={}, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.pass_kwargs = pass_kwargs
+
+    def __call__(self, coro):
+        async def wrapped(view, interaction, **kwargs):
+            return await coro(view, interaction, self, **kwargs, **self.pass_kwargs)
+        self.callback = wrapped
+        return self
+
+
+class AButton(HookedItem, Button):
+    ...
+
+
+class AsComponents(LeoUI):
+    """
+    Simple container class to accept a number of Items and turn them into an attachable View.
+    """
+    def __init__(self, *items, pass_kwargs={}, **kwargs):
+        super().__init__(**kwargs)
+        self.pass_kwargs = pass_kwargs
+
+        for item in items:
+            item.callback = self.wrap_callback(item.callback)
+            self.add_item(item)
+
+    def wrap_callback(self, coro):
+        async def wrapped(*args, **kwargs):
+            return await coro(self, *args, **kwargs, **self.pass_kwargs)
+        return wrapped