bokeh.models.callbacks¶

Client-side interactivity.

class Callback(**kwargs)¶

Bases: bokeh.model.Model

Base class for interactive callback. Callback is generally not useful to instantiate on its own.

{
  "id": "fa53aaa1-5e47-4473-ad3d-5e25264a108c",
  "name": null,
  "tags": []
}

class CustomJS(**kwargs)¶

Bases: bokeh.models.callbacks.Callback

Execute a JavaScript function.

classmethod from_py_func(func)¶

Create a CustomJS instance from a Python function. The function is translated to Python using PyScript.

args¶

property type: args:Dict(String, Instance(Model))

A mapping of names to Bokeh plot objects. These objects are made available to the callback code snippet as the values of named parameters to the callback.

code¶

property type: code:String

A snippet of JavaScript/CoffeeScript code to execute in the browser. The code is made into the body of a function, and all of of the named objects in args are available as parameters that the code can use. Additionally, a cb_obj parameter contains the object that triggered the callback and an optional cb_data parameter that contains any tool-specific data (i.e. mouse coordinates and hovered glyph indices for the HoverTool).

lang¶

property type: lang:Enum(‘javascript’, ‘coffeescript’)

The implementation scripting language of the snippet. This can be either raw JavaScript or CoffeeScript. In CoffeeScript’s case, the snippet will be compiled at runtime (in a web browser), so you don’t need to have node.js/io.js, etc. installed.

{
  "args": {},
  "code": "",
  "id": "18249fd8-3847-4809-a748-26cd402616d3",
  "lang": "javascript",
  "name": null,
  "tags": []
}

class OpenURL(**kwargs)¶

Bases: bokeh.models.callbacks.Callback

Open a URL in a new tab or window (browser dependent).

url¶

property type: url:String

The URL to direct the web browser to. This can be a template string, which will be formatted with data from the data source.

{
  "id": "efbfcd31-c480-4239-b535-50e488860181",
  "name": null,
  "tags": [],
  "url": "http://"
}