Add basic implementation of "cursor" layout strategy

lua/telescope/pickers/layout_strategies.lua

@@ -204,6 +204,74 @@ layout_strategies.center = function(self, columns, lines)
  }
 end
 
+--[[
+ +--------------+---------------------+
+ | Prompt | Previewer |
+ +--------------+ Previewer |
+ | Result | Previewer |
+ | Result | Previewer |
+ +--------------+---------------------+
+--]]
+layout_strategies.cursor = function(self, columns, lines)
+ local initial_options = self:_get_initial_window_options()
+ --local preview = initial_options.preview
+ local results = initial_options.results
+ local prompt = initial_options.prompt
+
+ -- This sets the height/width for the whole layout
+ local height = resolve.resolve_height(self.window.results_height)(self, columns, lines)
+ local width = resolve.resolve_width(self.window.width)(self, columns, lines)
+
+ local max_results = (height > lines and lines or height)
+ local max_width = (width > columns and columns or width)
+
+ prompt.height = 1
+ results.height = max_results
+
+ prompt.width = max_width
+ results.width = max_width
+ --preview.width = max_width
+
+ -- border size
+ local bs = 1
+ if is_borderless(self) then
+ bs = 0
+ end
+
+ -- TODO: find a better way to find current cursor position on screen
+ -- Currently, this will not work if the buffer is scrolled
+ local position = vim.fn.nvim_win_get_position(0)
+ local cursor = vim.fn.nvim_win_get_cursor(0)
+ local cursor_line = cursor[1] + position[1]
+ local cursor_col = cursor[2] + position[1]
+
+ --prompt.line = (lines / 2) - ((max_results + (bs * 2)) / 2)
+ prompt.line = cursor_line + bs
+ results.line = prompt.line + 1 + bs
+
+ --preview.line = 1
+ --preview.height = math.floor(prompt.line - (2 + bs))
+
+ --if not self.previewer or columns < self.preview_cutoff then
+ --preview.height = 0
+ --end
+
+ -- TODO: handle width of columns left of current buffer
+ -- TODO: handle cases where there is no space left or no space below
+ prompt.col = cursor_col + 1 + bs
+ results.col = prompt.col
+ --results.col = math.ceil((columns / 2) - (width / 2) - bs)
+ --prompt.col = results.col
+ --preview.col = results.col
+
+ return {
+ --preview = self.previewer and preview.width > 0 and preview,
+ preview = false,
+ results = results,
+ prompt = prompt
+ }
+end
+
 --[[
  +-----------------+
  | Previewer |