Context Menu feature implementation for Panel Tabulator

[tempNoobie]

The main idea behind this feature is to provide a context menu for panel tabulator widget as in Tabulator.

Motivation

• This feature will allow users to perform actions on specific rows or cells within the table which in turn enhances data manipulation capabilities.
• Even though the same could be done using the selection feature, it has its own advantages and disadvantages, upon selection of a particular cell, the selection remains even after the required operation is completed.
• A more efficient way is required to trigger custom functions based on the selected item.
• A separate menu or interface is not required if this feature is implemented.

Requirement

• The context menu should be triggered by a right-click on a particular cell.
• A basic set of standard operations can be provided. (copy, edit, delete etc)
• Context Menu options should be configurable.
• User defined functions (custom actions) should be executed upon selection of option from the context menu

Currently followed approach

import pandas as pd
import panel as pn

raw_data = \
[
  {
    "value": 'A',
    "frequency": 3
  },
  {
    "value": 'B',
    "frequency": 2
  },
  {
    "value": 'C',
    "frequency": 1
  },
  {
    "value": 'D',
    "frequency": 1
  },
  {
    "value": 'E',
    "frequency": 1
  },
  {
    "value": 'F',
    "frequency": 2
  },
]

def contextMenu():
    print("Selected Option One from context menu...")

value_freq = pd.DataFrame(raw_data)
tabWid = pn.widgets.Tabulator(value_freq, configuration={
                                                            'rowContextMenu':[
                                                                {
                                                                    'label':'Option One',
                                                                    'action':contextMenu()
                                                        
                                                                },
                                                                {
                                                                    'separator':True
                                                                },
                                                            ]
                                                        })
pn.Row(tabWid).servable()

Issue with this approach

• The above approach works and also the context menu is also triggered upon right click, the only problem is the custom function is not triggered.
• The function is called only during the initialization phase.
• The same was also posted in the panel community - Discussion

My first feature request hopefully it is well structured and necessary details are provided 🙂