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fix(buffer): fix stale extmarks, duplicate window, and fold state loss (#92)

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Problem: Deleting lines (`dd`, `dat`, `d3j`) left extmarks stranded on
adjacent rows since `render()` only clears and reapplies marks on `:w`.
Quickfix `<CR>` opened the pending buffer in a second window because
`BufEnter` did not redirect to `task_winid`. Category fold state was
lost across `<Tab>/<Tab>` view toggles because `render()` overwrote the
saved state with an empty snapshot taken while folds were disabled.

Solution: Add a `TextChanged`/`TextChangedI` autocmd that clears the
extmark namespace immediately on any edit. Fix `BufEnter` to close
duplicate windows and redirect focus to `task_winid`, updating it when
stale. Fix `snapshot_folds` to skip if a state is already saved, and
`restore_folds` to always clear the saved state; snapshot in
`toggle_view` before the view flips so the state survives the round-trip.
This commit is contained in:
Barrett Ruth 2026-03-06 21:36:04 -05:00 • committed by GitHub
parent c392874311
commit 559ab863a8
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2 changed files with 43 additions and 1 deletions
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25
lua/pending/init.lua
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@ -224,12 +224,37 @@ function M._setup_autocmds(bufnr)
group = group,
buffer = bufnr,
callback = function()
local cur_win = vim.api.nvim_get_current_win()
local tw = buffer.winid()
if tw and vim.api.nvim_win_is_valid(tw) and cur_win ~= tw then
local cursor = vim.api.nvim_win_get_cursor(cur_win)
vim.schedule(function()
if vim.api.nvim_win_is_valid(cur_win) and #vim.api.nvim_list_wins() > 1 then
pcall(vim.api.nvim_win_close, cur_win, false)
end
if vim.api.nvim_win_is_valid(tw) then
vim.api.nvim_set_current_win(tw)
pcall(vim.api.nvim_win_set_cursor, tw, cursor)
end
end)
return
end
if not tw or not vim.api.nvim_win_is_valid(tw) then
buffer.update_winid(cur_win)
end
if not vim.bo[bufnr].modified then
get_store():load()
buffer.render(bufnr)
end
end,
})
vim.api.nvim_create_autocmd({ 'TextChanged', 'TextChangedI' }, {
group = group,
buffer = bufnr,
callback = function()
buffer.clear_marks(bufnr)
end,
})
vim.api.nvim_create_autocmd('WinClosed', {
group = group,
callback = function(ev)