From b77413ff8f59f380612074f0c9bd49093d8db695 Mon Sep 17 00:00:00 2001
From: Mike Vink <mike@pionative.com>
Date: Sun, 19 Jan 2025 13:52:52 +0100
Subject: Squashed 'mut/neovim/pack/plugins/start/blink.cmp/' content from
 commit 1cc3b1a

git-subtree-dir: mut/neovim/pack/plugins/start/blink.cmp
git-subtree-split: 1cc3b1a908fbcfd15451c4772759549724f38524
---
 lua/blink/cmp/keymap/fallback.lua | 91 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 91 insertions(+)
 create mode 100644 lua/blink/cmp/keymap/fallback.lua

(limited to 'lua/blink/cmp/keymap/fallback.lua')

diff --git a/lua/blink/cmp/keymap/fallback.lua b/lua/blink/cmp/keymap/fallback.lua
new file mode 100644
index 0000000..a73d69e
--- /dev/null
+++ b/lua/blink/cmp/keymap/fallback.lua
@@ -0,0 +1,91 @@
+local fallback = {}
+
+--- Add missing types. Remove when fixed upstream
+---@class blink.cmp.Fallback : vim.api.keyset.keymap
+---@field lhs string
+---@field mode string
+---@field rhs? string
+---@field lhsraw? string
+---@field buffer? number
+
+--- Gets the non blink.cmp global keymap for the given mode and key
+--- @param mode string
+--- @param key string
+--- @return blink.cmp.Fallback | nil
+function fallback.get_non_blink_global_mapping_for_key(mode, key)
+  local normalized_key = vim.api.nvim_replace_termcodes(key, true, true, true)
+
+  -- get global mappings
+  local mappings = vim.api.nvim_get_keymap(mode)
+
+  for _, mapping in ipairs(mappings) do
+    --- @cast mapping blink.cmp.Fallback
+    local mapping_key = vim.api.nvim_replace_termcodes(mapping.lhs, true, true, true)
+    if mapping_key == normalized_key and mapping.desc ~= 'blink.cmp' then return mapping end
+  end
+end
+
+--- Gets the non blink.cmp buffer keymap for the given mode and key
+--- @param mode string
+--- @param key string
+--- @return blink.cmp.Fallback?
+function fallback.get_non_blink_buffer_mapping_for_key(mode, key)
+  local normalized_key = vim.api.nvim_replace_termcodes(key, true, true, true)
+
+  local buffer_mappings = vim.api.nvim_buf_get_keymap(0, mode)
+
+  for _, mapping in ipairs(buffer_mappings) do
+    --- @cast mapping blink.cmp.Fallback
+    local mapping_key = vim.api.nvim_replace_termcodes(mapping.lhs, true, true, true)
+    if mapping_key == normalized_key and mapping.desc ~= 'blink.cmp' then return mapping end
+  end
+end
+
+--- Returns a function that will run the first non blink.cmp keymap for the given mode and key
+--- @param mode string
+--- @param key string
+--- @return fun(): string?
+function fallback.wrap(mode, key)
+  -- In default mode, there can't be multiple mappings on a single key for buffer local mappings
+  -- In cmdline mode, there can't be multiple mappings on a single key for global mappings
+  local buffer_mapping = mode ~= 'c' and fallback.get_non_blink_buffer_mapping_for_key(mode, key)
+    or fallback.get_non_blink_global_mapping_for_key(mode, key)
+  return function()
+    local mapping = buffer_mapping or fallback.get_non_blink_global_mapping_for_key(mode, key)
+    if mapping then return fallback.run_non_blink_keymap(mapping, key) end
+    return vim.api.nvim_replace_termcodes(key, true, true, true)
+  end
+end
+
+--- Runs the first non blink.cmp keymap for the given mode and key
+--- @param mapping blink.cmp.Fallback
+--- @param key string
+--- @return string | nil
+function fallback.run_non_blink_keymap(mapping, key)
+  -- TODO: there's likely many edge cases here. the nvim-cmp version is lacking documentation
+  -- and is quite complex. we should look to see if we can simplify their logic
+  -- https://github.com/hrsh7th/nvim-cmp/blob/ae644feb7b67bf1ce4260c231d1d4300b19c6f30/lua/cmp/utils/keymap.lua
+  if type(mapping.callback) == 'function' then
+    -- with expr = true, which we use, we can't modify the buffer without scheduling
+    -- so if the keymap does not use expr, we must schedule it
+    if mapping.expr ~= 1 then
+      vim.schedule(mapping.callback)
+      return
+    end
+
+    local expr = mapping.callback()
+    if type(expr) == 'string' and mapping.replace_keycodes == 1 then
+      expr = vim.api.nvim_replace_termcodes(expr, true, true, true)
+    end
+    return expr
+  elseif mapping.rhs then
+    local rhs = vim.api.nvim_replace_termcodes(mapping.rhs, true, true, true)
+    if mapping.expr == 1 then rhs = vim.api.nvim_eval(rhs) end
+    return rhs
+  end
+
+  -- pass the key along as usual
+  return vim.api.nvim_replace_termcodes(key, true, true, true)
+end
+
+return fallback
-- 
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