diffview.nvim/lua/diffview/ffi.lua at main · vramana/diffview.nvim · GitHub

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local ffi = require("ffi")

local C = ffi.C

local M = setmetatable({}, { __index = ffi })

local HAS_NVIM_0_9 = vim.fn.has("nvim-0.9") == 1

---Check if the |textlock| is active.

---@return boolean

function M.nvim_is_textlocked()

return C.textlock > 0

end

---Check if the nvim API is locked for any reason.

---See: |api-fast|, |textlock|

---@return boolean

function M.nvim_is_locked()

if vim.in_fast_event() then return true end

if HAS_NVIM_0_9 then

return C.textlock > 0 or C.allbuf_lock > 0 or C.expr_map_lock > 0

end

return C.textlock > 0 or C.allbuf_lock > 0 or C.ex_normal_lock > 0

end

ffi.cdef([[

/// Non-zero when changing text and jumping to another window or editing another buffer is not

/// allowed.

extern int textlock;

/// Non-zero when no buffer name can be changed, no buffer can be deleted and

/// current directory can't be changed. Used for SwapExists et al.

extern int allbuf_lock;

]])

if HAS_NVIM_0_9 then

ffi.cdef([[

/// Running expr mapping, prevent use of ex_normal() and text changes

extern int expr_map_lock;

]])

else

ffi.cdef([[

/// prevent use of ex_normal()

extern int ex_normal_lock;

]])

end

return M

diffview.nvim/lua/diffview/ffi.lua at main · vramana/diffview.nvim · GitHub

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