add view.cursorlineopt

[eeeXun]

I used to have

require("nvim-tree.view").View.winopts.cursorlineopt = "number"

to change cursorlineopt. Since cursorlineopt is not available in nvim-tree-opts-view.

How should I do after 0a06f65?

[alex-courtis]

Apologies, View is not API and has been refactored from a singleton to instances.

We can add an option for the hardcoded cursorlineopt.

[alex-courtis]

In the interests of speed I've merged the feature. Please update and advise whether it works as expected.

[eeeXun]

Yes, it works. Thx

[l00sed]

I was using the nvim-tree.view to calculate the width of the nvim-tree explorer View in order to always offset my bufferline the same width as the nvim-tree explorer. However, after updating this morning, I'm having issues requiring that nvim-tree.view. It's telling me module not found?

local nvim_tree_events = require('nvim-tree.events')
local nvim_tree_view = require('nvim-tree.view')
local bufferline_api = require('bufferline.api')

local function get_tree_size()
  return nvim_tree_view.View.width
end

nvim_tree_events.subscribe('TreeOpen', function()
  bufferline_api.set_offset(get_tree_size())
end)

nvim_tree_events.subscribe('TreeClose', function()
  bufferline_api.set_offset(0)
end)

nvim_tree_events.subscribe('Resize', function()
  if nvim_tree_view.is_visible() then
    bufferline_api.set_offset(get_tree_size())
  else
    bufferline_api.set_offset(0)
  end
end)

Is this related to this issue? The View is no longer accessible as an API?

[alex-courtis]

View was never API.

The Resize event should pass you the width as the size parameter. See :help nvim-tree-events

[l00sed]

Is there another (new) way to get the size without an event? I had another keyboard shortcut that would also check for the window width without a resize:

map({ "n" }, "<C-h>", "<Cmd>TmuxResizeLeft<CR> | <CMD>lua require('bufferline.api').set_offset(require('nvim-tree.view').View.width)<CR>", { remap = true, silent = true, desc = 'Resize Neovim pane horizontally' })

But it looks like the code for View changed or was moved?

I tried to refactor the code I shared earlier:

local events = require('nvim-tree.events')
local api = require('nvim-tree.api')
local bufferline_api = require('bufferline.api')

api.events.subscribe(events.TreeOpen, function()
  bufferline_api.set_offset(30)
end)

api.events.subscribe(events.TreeClose, function()
  bufferline_api.set_offset(0)
end)

api.events.subscribe(events.Resize, function(size)
  bufferline_api.set_offset(size)
end)

That works without requiring View. However, now anytime I resize I get the following error:

[NvimTree] Handler for event Resize errored. ".../nvim/lazy/nvim-tree.lua/lua/nvim-tree/explorer/view.lua:566: attempt to index local 'self' (a nil value)"

[l00sed]

I think the examples/recipes that use the require('nvim-tree.view') are going to be broken?
https://github.com/nvim-tree/nvim-tree.lua/wiki/Recipes#remember-nvimtree-window-size

[alex-courtis]

Is there another (new) way to get the size without an event? I had another keyboard shortcut that would also check for the window width without a resize:

Please note Caution: API and Internal Modules

You can get the width via tree then nvim api.

  -- find the winid in the current tab  :help nvim-tree-api.tree.winid()
  local winid = api.tree.winid()
  print("winid=" .. winid)

  -- get the width  :help nvim_win_get_width
  local width = vim.api.nvim_win_get_width(winid)
  print("width=" .. width)

[alex-courtis]

I think the examples/recipes that use the require('nvim-tree.view') are going to be broken?
https://github.com/nvim-tree/nvim-tree.lua/wiki/Recipes#remember-nvimtree-window-size

Thanks for finding those! I'd be most grateful if you could take the time to update those view examples.

[l00sed]

Thanks, I got it working with the following:

local nvim_tree_events = require('nvim-tree.events')
local api = require('nvim-tree.api')
local bufferline_api = require('bufferline.api')

local function get_tree_size()
  -- Get the ID of the nvim-tree window
  local winid = api.tree.winid()
  -- Return the width of the nvim-tree window
  if (winid) then
    return vim.api.nvim_win_get_width(winid)
  else
    return 0
  end
end

-- Set the offset for bufferline when nvim-tree is opened
nvim_tree_events.subscribe('TreeOpen', function()
  bufferline_api.set_offset(30)
end)

-- Set the offset to 0 when nvim-tree is closed
nvim_tree_events.subscribe('TreeClose', function()
  bufferline_api.set_offset(0)
end)

-- Resize the bufferline offset to match the nvim-tree window width
autocmd('WinResized', {
  pattern = '*',
  callback = function()
    bufferline_api.set_offset(get_tree_size())
  end,
})

I've refactored the examples using nvim-tree.view with this similar workaround, thanks for you help. Please double-check my work. I didn't have a chance to test, but it looks right the way I updated in the wiki.

[alex-courtis]

Many thanks @l00sed !

Great fix for the double toggle.