[BUG] PanTool can't be deactivated in grid plot #11839
Description
Software versions
Python version : 3.9.7 | packaged by conda-forge | (default, Sep 23 2021, 07:28:37)
IPython version : 7.28.0
Tornado version : 6.1
Bokeh version : 2.4.2
BokehJS static path : /opt/conda/envs/development/lib/python3.9/site-packages/bokeh/server/static
node.js version : v15.14.0
npm version : 7.7.6
Operating system : Linux-5.10.0-8-amd64-x86_64-with-glibc2.31
Browser name and version
Chrome, Version 96.0.4664.45
Jupyter notebook / Jupyter Lab version
No response
Expected behavior
I expect to disable tools like the PanTool for grids in a similar way like for single figures official documentation.
Observed behavior
It is not possuble to deactivate a tool in a grid plot. The toolbar of the grid plot is of type ProxyToolbar with two toolbars of type Toolbar.
There is a question on StackOverflow about this behavior.
Example code
from bokeh.plotting import ColumnDataSource, figure, show, output_notebook
from bokeh.layouts import gridplot
source = ColumnDataSource(data=dict(x=[1, 2, 3],y=[2, 5, 3],))
def get_figure():
p = figure(width=400, height=200,tools='pan')
p.circle('x', 'y', size=20, source=source)
p.toolbar.active_drag = None
return p
grid = gridplot([get_figure() for i in range(2)], ncols=1)
grid.children[0].toolbar.toolbars[0].active_drag = None
show(grid)
show(get_figure())Stack traceback or browser console output
No response
Screenshots
This is the output of an single figure, working like explained in the documentation. The tool is deactivated, like expected.
This is the output for a grid. The tool is not deactivated.
