1 files changed, 129 insertions, 0 deletions
diff --git a/start/lspconfig-0.1.8/lua/lspconfig/ui/windows.lua b/start/lspconfig-0.1.8/lua/lspconfig/ui/windows.lua
new file mode 100644
index 0000000..dc02c9e
--- /dev/null
+++ b/start/lspconfig-0.1.8/lua/lspconfig/ui/windows.lua
@@ -0,0 +1,129 @@
+-- The following is extracted and modified from plenary.vnim by
+-- TJ Devries. It is not a stable API, and is expected to change
+--
+local api = vim.api
+
+local function apply_defaults(original, defaults)
+  if original == nil then
+    original = {}
+  end
+
+  original = vim.deepcopy(original)
+
+  for k, v in pairs(defaults) do
+    if original[k] == nil then
+      original[k] = v
+    end
+  end
+
+  return original
+end
+
+local win_float = {}
+
+win_float.default_options = {}
+
+function win_float.default_opts(options)
+  options = apply_defaults(options, { percentage = 0.9 })
+
+  local width = math.floor(vim.o.columns * options.percentage)
+  local height = math.floor(vim.o.lines * options.percentage)
+
+  local top = math.floor(((vim.o.lines - height) / 2))
+  local left = math.floor((vim.o.columns - width) / 2)
+
+  local opts = {
+    relative = 'editor',
+    row = top,
+    col = left,
+    width = width,
+    height = height,
+    style = 'minimal',
+    border = {
+      { ' ', 'NormalFloat' },
+      { ' ', 'NormalFloat' },
+      { ' ', 'NormalFloat' },
+      { ' ', 'NormalFloat' },
+      { ' ', 'NormalFloat' },
+      { ' ', 'NormalFloat' },
+      { ' ', 'NormalFloat' },
+      { ' ', 'NormalFloat' },
+    },
+  }
+
+  opts.border = options.border and options.border
+
+  return opts
+end
+
+--- Create window that takes up certain percentags of the current screen.
+---
+--- Works regardless of current buffers, tabs, splits, etc.
+--@param col_range number | Table:
+--                  If number, then center the window taking up this percentage of the screen.
+--                  If table, first index should be start, second_index should be end
+--@param row_range number | Table:
+--                  If number, then center the window taking up this percentage of the screen.
+--                  If table, first index should be start, second_index should be end
+function win_float.percentage_range_window(col_range, row_range, options)
+  options = apply_defaults(options, win_float.default_options)
+
+  local win_opts = win_float.default_opts(options)
+  win_opts.relative = 'editor'
+
+  local height_percentage, row_start_percentage
+  if type(row_range) == 'number' then
+    assert(row_range <= 1)
+    assert(row_range > 0)
+    height_percentage = row_range
+    row_start_percentage = (1 - height_percentage) / 3
+  elseif type(row_range) == 'table' then
+    height_percentage = row_range[2] - row_range[1]
+    row_start_percentage = row_range[1]
+  else
+    error(string.format("Invalid type for 'row_range': %p", row_range))
+  end
+
+  win_opts.height = math.ceil(vim.o.lines * height_percentage)
+  win_opts.row = math.ceil(vim.o.lines * row_start_percentage)
+  win_opts.border = options.border or 'none'
+
+  local width_percentage, col_start_percentage
+  if type(col_range) == 'number' then
+    assert(col_range <= 1)
+    assert(col_range > 0)
+    width_percentage = col_range
+    col_start_percentage = (1 - width_percentage) / 2
+  elseif type(col_range) == 'table' then
+    width_percentage = col_range[2] - col_range[1]
+    col_start_percentage = col_range[1]
+  else
+    error(string.format("Invalid type for 'col_range': %p", col_range))
+  end
+
+  win_opts.col = math.floor(vim.o.columns * col_start_percentage)
+  win_opts.width = math.floor(vim.o.columns * width_percentage)
+
+  local bufnr = options.bufnr or api.nvim_create_buf(false, true)
+  local win_id = api.nvim_open_win(bufnr, true, win_opts)
+  api.nvim_win_set_option(win_id, 'winhl', 'FloatBorder:LspInfoBorder')
+
+  for k, v in pairs(win_float.default_options) do
+    if k ~= 'border' then
+      vim.opt_local[k] = v
+    end
+  end
+
+  api.nvim_win_set_buf(win_id, bufnr)
+
+  api.nvim_win_set_option(win_id, 'cursorcolumn', false)
+  api.nvim_buf_set_option(bufnr, 'tabstop', 2)
+  api.nvim_buf_set_option(bufnr, 'shiftwidth', 2)
+
+  return {
+    bufnr = bufnr,
+    win_id = win_id,
+  }
+end
+
+return win_float