fix(nvimdev#1482): adds the ability to set a prefix to winbar

lua/lspsaga/highlight.lua

@@ -4,6 +4,7 @@ local kind = require('lspsaga.lspkind').kind
 local function hi_define()
   return {
     -- general
+    SagaPrefix = { link = 'Prefix' },
     SagaTitle = { link = 'Title' },
     SagaBorder = { link = 'FloatBorder' },
     SagaNormal = { link = 'NormalFloat' },

lua/lspsaga/symbol/winbar.lua

@@ -21,9 +21,15 @@ local function path_in_bar(buf)
 
   local bar = bar_prefix()
   local items = {}
+
+  local winbar_prefix = type(ui.winbar_prefix) == 'string'
+      and #ui.winbar_prefix > 0
+      and '%#Prefix#' .. ui.winbar_prefix
+    or ''
+
   local folder
   if ui.foldericon then
-    folder = ui.winbar_prefix .. get_kind_icon(302)[2]
+    folder = get_kind_icon(302)[2]
   end
 
   for item in util.path_itera(buf) do
@@ -34,7 +40,7 @@ local function path_in_bar(buf)
         and '%#' .. (hl or 'SagaFileIcon') .. '#' .. (icon and icon .. ' ' or '') .. '%*' .. bar.prefix .. 'FileName#' .. item
       or bar.prefix
         .. 'Folder#'
-        .. (folder and folder or ui.winbar_prefix)
+        .. (folder and folder or '')
         .. '%*'
         .. bar.prefix
         .. 'FolderName#'
@@ -47,7 +53,7 @@ local function path_in_bar(buf)
     end
   end
 
-  local barstr = ''
+  local barstr = winbar_prefix .. ''
   for i = #items, 1, -1 do
     barstr = barstr .. items[i] .. (i > 1 and bar.sep or '')
   end

test/winbar_spec.lua

@@ -0,0 +1,28 @@
+require('lspsaga').setup({})
+local api = vim.api
+
+describe('winbar', function()
+  before_each(function()
+    local buf = api.nvim_create_buf(false, true)
+    api.nvim_set_current_buf(buf)
+    api.nvim_command('vsplit')
+    api.nvim_set_current_win(api.nvim_get_current_win())
+  end)
+
+  it('should handle width limitation in winbar', function()
+    -- Inicialize o winbar
+    require('lspsaga.symbol.winbar').init_winbar(api.nvim_get_current_buf())
+
+    -- Simula uma situação onde há muitos itens na winbar
+    -- (Adapte conforme necessário para criar uma lista longa de símbolos)
+    api.nvim_set_option_value('winbar', string.rep('Item|', 50), {
+      scope = 'local',
+      win = api.nvim_get_current_win(),
+    })
+
+    -- Verifique se o winbar lida com a largura da janela corretamente
+    local winbar_value =
+      api.nvim_get_option_value('winbar', { scope = 'local', win = api.nvim_get_current_win() })
+    assert(winbar_value:match('...'), 'Winbar does not handle width limitation correctly')
+  end)
+end)