Option similar to fzf_buffers_jump

[felippemr]

👋 folks, thanks for this great project!

Does anybody know if telescope provides something similar to fzf.vim's fzf_buffers_jump?
It basically jumps to an existing window if the buffer you are navigating to is already being shown.

Thanks!

[EDIT: link to fzf's doc.]

[fdschmidt93]

Hi there,

not out-of-the-box, but something akin to this is very easily achieved with, for instance, the below pattern (to get you started). You may or may not want to filter as to whether the window is also in the current tabpage and if not fall back to showing the buffer in the current window, of course. Many ways lead to Rome. We are currently revamping our docs and I can only wholeheartedly recommend https://github.com/Conni2461/telescope.nvim/blob/docs_rework/developers.md (preview of what's coming) to learn about actions and more.

local actions = require "telescope.actions"
local action_state = require "telescope.actions.state"

require("telescope.builtin").buffers {
  attach_mappings = function(_, map)
    map("i", "<C-j>", function(prompt_bufnr)
      local bufnr = action_state.get_selected_entry().bufnr
      local winid = vim.tbl_filter(function(win)
        return vim.api.nvim_win_get_buf(win) == bufnr
      end, vim.api.nvim_list_wins())[1]
      actions.close(prompt_bufnr)
      vim.api.nvim_set_current_win(winid)
      -- easily add fallback, only for current tabpage, etc.
    end)
    return true
  end,
}

You can also then add this function to your buffer picker by default like so.

require("telescope").setup {
  pickers = {
    buffers = {
      mappings = {
        i = {
          ["<c-j>"] = function(prompt_bufnr) ... end,
        },
      }
    },
  },
}

[fdschmidt93]

Let me know whether that is a sufficient starting point or you'd like to have a snippet / guidance on more concrete variants of the idea :)

[felippemr]

Yeah, that sounds good. But, I don't understand most of it. 😬

Where can I read more about "i", "<C-j>"? Also, by doing:

require("telescope").setup {
  pickers = {
    buffers = {

Doe is mean it will work across all of the telescope commands?

[ryanhuanli]

I got "Invalid window id" error in most cases.
After moving the telescope window close before the window listing, this works for me perfectly:

require("telescope").setup {
    pickers = {
        buffers = {
            mappings = {
                i = {
                    ["<CR>"] = function(prompt_bufnr)
                        local bufnr = require("telescope.actions.state").get_selected_entry().bufnr
                        require("telescope.actions").close(prompt_bufnr) -- move to here!
                        local winid = vim.tbl_filter(function(win)
                            return vim.api.nvim_win_get_buf(win) == bufnr
                        end, vim.api.nvim_list_wins())[1]
                        vim.api.nvim_set_current_win(winid)
                    end
                },
            }
        },
    },
}