Add support for Drawer UI component

[mattpap]

Screencast.from.2024-09-25.18-20-13.webm

Code

import numpy as np

from bokeh.models import Drawer, Examiner
from bokeh.plotting import figure, show

N = 4000
x = np.random.random(size=N) * 100
y = np.random.random(size=N) * 100
radii = np.random.random(size=N) * 1.5
colors = np.array([(r, g, 150) for r, g in zip(50+2*x, 30+2*y)], dtype="uint8")

plot = figure()
plot.circle(x, y, radius=radii, fill_color=colors, fill_alpha=0.6, line_color=None)

examiner = Examiner(target=plot)
drawer = Drawer(location="right", resizable=True, elements=[examiner])

show([plot, drawer])

[bryevdv]

Is there an associated issue that describes the motivation and goals for this element? We might also want a place to discuss naming. I am not sure about "Drawer" I came here half expecting a drawing tool of some sort.

[mattpap]

There is no issue for this as far as I can tell. The motivation is to build up a set of commonly used UI components, similarly to progress widgets, etc. Drawer is a common name, but it is up to discussion.

[mattpap]

This also works when attaching the Drawer to other elements, like a Plot:

Screencast.from.2024-09-26.01-02-02.webm

Change the original example to:

plot.elements.append(drawer)
show(plot)

[bryevdv]

LGTM with a few comments

[github-actions]

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