Default views field options not working

Problem/Motivation

There are default options for views fields, i.e. default settings whether they are opted for filter, sort and sort text. The default settings should be available in views options_form(&$form, &$form_state). Since we can add any fields in views, therefore it is not possible to mention default settings for every one of them. If we don't have the default settings, then message a "Click on an item to edit that item's details." appears on the overlay and the whole page starts giving output in JSON.

Proposed resolution

Currently I am struggling to fix this problem. The table style plugin has something similar to this, i.e. the setting varies as per fields added to views. But I am not able to find how table style plugin does that. May be you can help.

Remaining tasks

Fix the problem.

User interface changes

N/A

API changes

N/A

Data model changes

N/A