How to change default click behaviour mapping for previewer?

[ankushbhagats]

I want to set custom mapping when I click on a preview window, how can I do that ?

[MukundaKatta]

Use the picker's attach_mappings callback to override default action on click — Telescope wires mouse clicks to the same mapping as <CR>, so remapping i and n mode <LeftMouse> or the default action is enough:

attach_mappings = function(_, map)
  map({'i','n'}, '<LeftMouse>', function(prompt_bufnr)
    -- your custom preview-click behavior here
  end)
  return true
end