Refactor a bit

lua/cmp/config/mapping.lua

@@ -0,0 +1,79 @@
+local misc = require('cmp.utils.misc')
+
+local mapping = setmetatable({}, {
+  __call = function(_, invoke, modes)
+    return {
+      invoke = function(...)
+        invoke(...)
+      end,
+      modes = modes or { 'i' },
+    }
+  end,
+})
+---Invoke completion
+mapping.complete = function()
+  return function(fallback)
+    if not require('cmp').complete() then
+      fallback()
+    end
+  end
+end
+
+---Close current completion menu if it displayed.
+mapping.close = function()
+  return function(fallback)
+    if not require('cmp').close() then
+      fallback()
+    end
+  end
+end
+
+---Abort current completion menu if it displayed.
+mapping.abort = function()
+  return function(fallback)
+    if not require('cmp').abort() then
+      fallback()
+    end
+  end
+end
+
+---Scroll documentation window.
+mapping.scroll_docs = function(delta)
+  return function(fallback)
+    if not require('cmp').scroll_docs(delta) then
+      fallback()
+    end
+  end
+end
+mapping.scroll = misc.deprecated(mapping.scroll_docs, '`cmp.mapping.scroll` is deprecated. Please change it to `cmp.mapping.scroll_docs` instead.')
+
+---Select next completion item.
+mapping.select_next_item = function()
+  return function(fallback)
+    if not require('cmp').select_next_item() then
+      fallback()
+    end
+  end
+end
+mapping.next_item = misc.deprecated(mapping.select_next_item, '`cmp.mapping.next_item` is deprecated. Please change it to `cmp.mapping.select_next_item` instead.')
+
+---Select prev completion item.
+mapping.select_prev_item = function()
+  return function(fallback)
+    if not require('cmp').select_prev_item() then
+      fallback()
+    end
+  end
+end
+mapping.prev_item = misc.deprecated(mapping.select_prev_item, '`cmp.mapping.prev_item` is deprecated. Please change it to `cmp.mapping.select_prev_item` instead.')
+
+---Confirm selection
+mapping.confirm = function(option)
+  return function(fallback)
+    if not require('cmp').confirm(option) then
+      fallback()
+    end
+  end
+end
+
+return mapping