bokeh.models.widgets.buttons

Various kinds of button widgets.

class AbstractButton(**kwargs)[source]

Bases: bokeh.models.widgets.widget.Widget, bokeh.models.widgets.buttons.ButtonLike

A base class that defines common properties for all button types.

Note

This is an abstract base class used to help organize the hierarchy of Bokeh model types. It is not useful to instantiate on its own.

callback

property type: Instance ( Callback )

A callback to run in the browser whenever the button is activated.

icon

property type: Instance ( AbstractIcon )

An optional image appearing to the left of button’s text.

label

property type: String

The text label for the button to display.

JSON Prototype
{
  "button_type": "default",
  "callback": null,
  "css_classes": null,
  "disabled": false,
  "height": null,
  "icon": null,
  "id": "68de726a-a8aa-4c2a-b68e-1fbfe55b34b8",
  "js_event_callbacks": {},
  "js_property_callbacks": {},
  "label": "Button",
  "name": null,
  "sizing_mode": "fixed",
  "subscribed_events": [],
  "tags": [],
  "width": null
}
class Button(**kwargs)[source]

Bases: bokeh.models.widgets.buttons.AbstractButton

A click button.

clicks

property type: Int

A private property used to trigger on_click event handler.

on_click(handler)[source]

Set up a handler for button clicks.

Parameters:handler (func) – handler function to call when button is clicked.
Returns:None
JSON Prototype
{
  "button_type": "default",
  "callback": null,
  "clicks": 0,
  "css_classes": null,
  "disabled": false,
  "height": null,
  "icon": null,
  "id": "ef78ee29-dbf0-45a4-afa6-24d25969fc7f",
  "js_event_callbacks": {},
  "js_property_callbacks": {},
  "label": "Button",
  "name": null,
  "sizing_mode": "fixed",
  "subscribed_events": [],
  "tags": [],
  "width": null
}
class ButtonLike(**properties)[source]

Shared properties for button-like widgets.

Note

This is an abstract base class used to help organize the hierarchy of Bokeh model types. It is not useful to instantiate on its own.

button_type

property type: Enum ( ButtonType )

A style for the button, signifying it’s role.

type
class Dropdown(**kwargs)[source]

Bases: bokeh.models.widgets.buttons.AbstractButton

A dropdown button.

default_value

property type: String

The default value, otherwise the first item in menu will be used.

menu

property type: List ( Tuple ( String , String ) )

Button’s dropdown menu consisting of entries containing item’s text and value name. Use None as a menu separator.

value

property type: String

A private property used to trigger on_click event handler.

on_click(handler)[source]

Set up a handler for button or menu item clicks.

Parameters:handler (func) – handler function to call when button is activated.
Returns:None
JSON Prototype
{
  "button_type": "default",
  "callback": null,
  "css_classes": null,
  "default_value": null,
  "disabled": false,
  "height": null,
  "icon": null,
  "id": "ba08ae58-05d4-4904-805f-0ae60e2d87a0",
  "js_event_callbacks": {},
  "js_property_callbacks": {},
  "label": "Dropdown",
  "menu": [],
  "name": null,
  "sizing_mode": "fixed",
  "subscribed_events": [],
  "tags": [],
  "value": null,
  "width": null
}
class Toggle(**kwargs)[source]

Bases: bokeh.models.widgets.buttons.AbstractButton

A two-state toggle button.

active

property type: Bool

The initial state of a button. Also used to trigger on_click event handler.

on_click(handler)[source]

Set up a handler for button state changes (clicks).

Parameters:handler (func) – handler function to call when button is toggled.
Returns:None
JSON Prototype
{
  "active": false,
  "button_type": "default",
  "callback": null,
  "css_classes": null,
  "disabled": false,
  "height": null,
  "icon": null,
  "id": "ee8817b8-8453-42bf-bda9-bb49c51d7245",
  "js_event_callbacks": {},
  "js_property_callbacks": {},
  "label": "Toggle",
  "name": null,
  "sizing_mode": "fixed",
  "subscribed_events": [],
  "tags": [],
  "width": null
}