From 22e59556f95f8021381c21f09d8cfc54d47db1bc Mon Sep 17 00:00:00 2001
From: Luke Kershaw <35707277+l-kershaw@users.noreply.github.com>
Date: Mon, 29 Nov 2021 10:42:23 +0000
Subject: [PATCH] chore: layout strategy tidying (#1509)

---
 doc/telescope.txt                           |  4 ++++
 lua/telescope/pickers/layout_strategies.lua | 17 +++++------------
 2 files changed, 9 insertions(+), 12 deletions(-)

diff --git a/doc/telescope.txt b/doc/telescope.txt
index 0283759..67c0da4 100644
--- a/doc/telescope.txt
+++ b/doc/telescope.txt
@@ -115,6 +115,7 @@ telescope.setup({opts})                                    *telescope.setup()*
         Default: {
           bottom_pane = {
             height = 25,
+            preview_cutoff = 120,
             prompt_position = "top"
           },
           center = {
@@ -1669,6 +1670,9 @@ layout_strategies.center()                        *layout_strategies.center()*
 
     `picker.layout_config` unique options:
       - preview_cutoff: When lines are less than this value, the preview will be disabled
+      - prompt_position:
+        - Where to place prompt window.
+        - Available Values: 'bottom', 'top'
 
 
 layout_strategies.cursor()                        *layout_strategies.cursor()*
diff --git a/lua/telescope/pickers/layout_strategies.lua b/lua/telescope/pickers/layout_strategies.lua
index 706c3e7..c0692be 100644
--- a/lua/telescope/pickers/layout_strategies.lua
+++ b/lua/telescope/pickers/layout_strategies.lua
@@ -398,6 +398,7 @@ layout_strategies.center = make_documented_layout(
   "center",
   vim.tbl_extend("error", shared_options, {
     preview_cutoff = "When lines are less than this value, the preview will be disabled",
+    prompt_position = { "Where to place prompt window.", "Available Values: 'bottom', 'top'" },
   }),
   function(self, max_columns, max_lines, layout_config)
     local initial_options = p_window.get_initial_window_options(self)
@@ -527,10 +528,7 @@ layout_strategies.cursor = make_documented_layout(
       -- Cap over/undersized width (with preview)
       width, w_space = calc_size_and_spacing(width, max_columns, bs, 2, 4, 0)
 
-      preview.width = resolve.resolve_width(if_nil(layout_config.preview_width, function(_, _)
-        -- By default, previewer takes 2/3 of the layout
-        return 2 * math.floor(width / 3)
-      end))(self, width, max_lines)
+      preview.width = resolve.resolve_width(if_nil(layout_config.preview_width, 2 / 3))(self, width, max_lines)
       prompt.width = width - preview.width - w_space
       results.width = prompt.width
     else
@@ -779,6 +777,7 @@ layout_strategies.bottom_pane = make_documented_layout(
   "bottom_pane",
   vim.tbl_extend("error", shared_options, {
     preview_width = { "Change the width of Telescope's preview window", "See |resolver.resolve_width()|" },
+    preview_cutoff = "When columns are less than this value, the preview will be disabled",
     prompt_position = { "Where to place prompt window.", "Available Values: 'bottom', 'top'" },
   }),
   function(self, max_columns, max_lines, layout_config)
@@ -807,19 +806,13 @@ layout_strategies.bottom_pane = make_documented_layout(
     results.height = height - prompt.height - (2 * bs)
     preview.height = results.height - bs
 
-    local width
-
     -- Width
     prompt.width = max_columns - 2 * bs
-    local w_space
     if self.previewer and max_columns >= layout_config.preview_cutoff then
       -- Cap over/undersized width (with preview)
-      width, w_space = calc_size_and_spacing(max_columns, max_columns, bs, 2, 4, 0)
+      local width, w_space = calc_size_and_spacing(max_columns, max_columns, bs, 2, 4, 0)
 
-      preview.width = resolve.resolve_width(if_nil(layout_config.preview_width, function(_, _)
-        -- By default, previewer takes 1/2 of the layout
-        return math.floor(width / 2)
-      end))(self, width, max_lines)
+      preview.width = resolve.resolve_width(if_nil(layout_config.preview_width, 0.5))(self, width, max_lines)
       results.width = width - preview.width - w_space
     else
       results.width = prompt.width