feat!: rename align_to_component to align_to, add cursor option

Closes #344

docs/configuration/reference.md

@@ -185,7 +185,7 @@ completion.menu = {
 -- Controls how the completion items are rendered on the popup window
 completion.menu.draw = {
   -- Aligns the keyword you've typed to a component in the menu
-  align_to_component = 'label', -- or 'none' to disable
+  align_to = 'label', -- or 'none' to disable, or 'cursor' to align to the cursor
   -- Left and right padding, optionally { left, right } for different padding on each side
   padding = 1,
   -- Gap between columns

lua/blink/cmp/completion/windows/menu.lua

@@ -106,7 +106,7 @@ function menu.update_position()
     return
   end
 
-  local start_col = menu.renderer:get_alignment_start_col()
+  local alignment_start_col = menu.renderer:get_alignment_start_col()
 
   -- place the window at the start col of the current text we're fuzzy matching against
   -- so the window doesnt move around as we type
@@ -117,12 +117,19 @@ function menu.update_position()
     win:set_win_config({
       relative = 'editor',
       row = cmdline_position[1] + row,
-      col = math.max(cmdline_position[2] + context.bounds.start_col - start_col, 0),
+      col = math.max(cmdline_position[2] + context.bounds.start_col - alignment_start_col, 0),
     })
   else
     local cursor_col = context.get_cursor()[2]
-    local col = context.bounds.start_col - cursor_col - (context.bounds.length == 0 and 0 or 1) - border_size.left
-    win:set_win_config({ relative = 'cursor', row = row, col = col - start_col })
+
+    local col = context.bounds.start_col
+      - alignment_start_col
+      - cursor_col
+      - (context.bounds.length == 0 and 0 or 1)
+      - border_size.left
+    if config.draw.align_to == 'cursor' then col = 0 end
+
+    win:set_win_config({ relative = 'cursor', row = row, col = col - alignment_start_col })
   end
 
   win:set_height(pos.height)

lua/blink/cmp/completion/windows/render/init.lua

@@ -138,8 +138,8 @@ function renderer:get_component_start_col(component_name)
 end
 
 function renderer:get_alignment_start_col()
-  local component_name = self.def.align_to_component
-  if component_name == nil or component_name == 'none' then return 0 end
+  local component_name = self.def.align_to
+  if component_name == nil or component_name == 'none' or component_name == 'cursor' then return 0 end
   return self:get_component_start_col(component_name)
 end
 

lua/blink/cmp/completion/windows/render/types.lua

@@ -1,5 +1,5 @@
 --- @class blink.cmp.Draw
---- @field align_to_component? string | 'none' Align the window to the component with the given name
+--- @field align_to? string | 'none' | 'cursor' Align the window to the component with the given name, or to the cursor
 --- @field padding? number | number[] Padding on the left and right of the grid
 --- @field gap? number Gap between columns
 --- @field columns? { [number]: string, gap?: number }[] Components to render, grouped by column

lua/blink/cmp/config/completion/menu.lua

@@ -55,7 +55,7 @@ local window = {
     -- Controls how the completion items are rendered on the popup window
     draw = {
       -- Aligns the keyword you've typed to a component in the menu
-      align_to_component = 'label', -- or 'none' to disable
+      align_to = 'cursor', -- or 'none' to disable
       -- Left and right padding, optionally { left, right } for different padding on each side
       padding = 1,
       -- Gap between columns
@@ -161,10 +161,10 @@ function window.validate(config)
   }, config.order)
 
   validate('completion.menu.draw', {
-    align_to_component = {
-      config.draw.align_to_component,
+    align_to = {
+      config.draw.align_to,
       function(align)
-        if align == 'none' then return true end
+        if align == 'none' or align == 'cursor' then return true end
         for _, column in ipairs(config.draw.columns) do
           for _, component in ipairs(column) do
             if component == align then return true end