BokehINFO.txt

Bokeh info:

callback can be used in:
	tools(SelectTool, HoverTool, TapTool)
	widgets (AbstractButton, InputWidget )
	Tabs - A callback to run in the browser whenever the button is activated
	Range - A callback to run in the browser whenever the range is updated
	ColumnsDataSource - A callback to run in the browser whenever the selection is changed  + AjaxDataSource, BlazeDataSource, ServerDataSource
	
The CustomJS callback has:
	args - arg mappings
	code - the JS code
	
	
model === data that is to be drawn (range, data source objects)
documents === set of models


	
box választó, ami csak sávot tud választani
BoxSelectTool(dimensions=["width"])

vizszintes hoover - mindent kiválaszt (index objektumba rak) ami a kurzorral egy magasságban van
p.add_tools(HoverTool(tooltips=None, callback=callback, renderers=[cr], mode='hline'))


autoload:
https://github.com/bokeh/bokeh/issues/3231
js, tag = autoload_static(chart, CDN, "http://www.joshhaines.com/js/bokeh.js")   lehet, hogy ez mégsem az...

Can I make a default selection from Python? That would initialize the graph and maybe trigger the execution of JS callback.


glyphs have data_source attr (also on python side):
https://github.com/bokeh/bokeh/blob/master/examples/plotting/server/selection_histogram.py

source.on_change('selected',self,'update_filter')
Select.on_change ...
Button.on_change ...
https://github.com/bokeh/bokeh/blob/0.9.0/examples/glyphs/population_server.py
https://github.com/bokeh/bokeh/blob/0.9.0/examples/glyphs/taylor_server.py


https://groups.google.com/a/continuum.io/forum/#!topic/bokeh/-fPwXKBfWHs
plot.get('renderers') 
renderer.get('data_source')

TODO: what object have on_change?
def callback(obj, attr, old, new):
    ...
source.on_change('selected', callback)
textInput.on_change('value', update_title)  (works only in version 0.11)
for w in ["MVA_1", "MVA_2"]:
    getattr(self, w).on_change('value', self, 'input_change')
self.toggle.on_click(self.checkbox_handler)

Can I call on_change(server side) from a JS script???
No real answers yet. You can call any Python script from JS in a standard way, but with Bokeh...?

http://chdoig.github.com/scipy2015-blaze-bokeh - some server examples