feat(Status): Better provider info and show filter info

lua/outline/config.lua

@@ -363,6 +363,8 @@ function M.resolve_filter_config()
     end
   end
 
+  M.o.symbols.user_config_filter = vim.deepcopy(tmp)
+
   ---@type outline.FilterFtList
   local filter = tmp
   ---@type outline.FilterFtTable

lua/outline/docs.lua

@@ -66,6 +66,15 @@ function M.show_help()
   end)
 end
 
+local function get_filter_list_lines(f)
+  if f == nil then
+    return { '(not configured)' }
+  elseif f == false or (f and #f == 0 and f.exclude) then
+    return { '(all symbols included)' }
+  end
+  return vim.split(vim.inspect(f), '\n', { plain = true })
+end
+
 ---Display outline window status in a floating window
 ---@param ctx outline.StatusContext
 function M.show_status(ctx)
@@ -74,8 +83,28 @@ function M.show_status(ctx)
   ---@type outline.HL[]
   local hl = { { line = 0, from = 0, to = #keyhint, name = 'Comment' } }
   local p = ctx.provider
-  local priority = cfg.o.providers.priority
+  ---@type string[]
+  local priority = ctx.priority
   local pref
+  local indent = '    '
+
+  if ctx.ft then
+    table.insert(lines, 'Filetype of current or attached buffer: ' .. ctx.ft)
+    table.insert(lines, 'Symbols filter:')
+    table.insert(lines, '')
+    for _, line in ipairs(get_filter_list_lines(ctx.filter)) do
+      table.insert(lines, indent .. line)
+    end
+    table.insert(lines, '')
+    table.insert(lines, 'Default symbols filter:')
+    table.insert(lines, '')
+    for _, line in ipairs(get_filter_list_lines(ctx.default_filter)) do
+      table.insert(lines, indent .. line)
+    end
+    table.insert(lines, '')
+  else
+    table.insert(lines, 'Buffer number of code was invalid, could not get filetype.')
+  end
 
   if utils.table_has_content(priority) then
     pref = 'Configured providers are: '
@@ -92,8 +121,6 @@ function M.show_status(ctx)
     table.insert(hl, { line = #lines - 1, from = #pref, to = #pref + #content, name = 'ErrorMsg' })
   end
 
-  table.insert(lines, '')
-
   if p ~= nil then
     pref = 'Current provider: '
     table.insert(lines, pref .. p.name)
@@ -102,7 +129,6 @@ function M.show_status(ctx)
       table.insert(lines, 'Provider info:')
       table.insert(lines, '')
       local l = p.get_status()
-      local indent = '    '
       for _, line in ipairs(vim.split(l, '\n', { plain = true, trimempty = false })) do
         table.insert(lines, indent .. line)
       end
@@ -115,8 +141,6 @@ function M.show_status(ctx)
       ('Outline window is %s.'):format((ctx.outline_open and 'open') or 'not open')
     )
 
-    table.insert(lines, '')
-
     if ctx.code_win_active then
       table.insert(lines, 'Code window is active.')
     else
@@ -124,7 +148,7 @@ function M.show_status(ctx)
       table.insert(lines, 'Try closing and reopening the outline.')
     end
   else
-    table.insert(lines, 'No providers.')
+    table.insert(lines, 'No supported providers for current buffer.')
   end
 
   local f = Float:new()

lua/outline/init.lua

@@ -629,9 +629,16 @@ end
 
 function M.show_status()
   ---@type outline.StatusContext
-  local ctx = {}
+  local ctx = { priority = cfg.o.providers.priority }
+
+  if vim.api.nvim_buf_is_valid(M.state.code_buf) then
+    ctx.ft = vim.api.nvim_buf_get_option(M.state.code_buf, 'ft')
+  end
+  ctx.filter = cfg.o.symbols.user_config_filter[ctx.ft]
+  ctx.default_filter = cfg.o.symbols.user_config_filter.default
+
   local p = _G._outline_current_provider
-  if not M.is_focus_in_outline() then
+  if not M.view or not M.view:is_open() then
     p = providers.find_provider()
   end
 

lua/outline/types/outline.lua

@@ -81,6 +81,10 @@
 ---@field provider outline.Provider?
 ---@field outline_open boolean?
 ---@field code_win_active boolean?
+---@field ft string?
+---@field filter outline.FilterList?
+---@field default_filter outline.FilterList?
+---@field priority string[]?
 
 -- API
 

lua/outline/utils/init.lua

@@ -137,12 +137,12 @@ function M.echo(module, message)
   vim.api.nvim_echo({ prefix_chunk, { message } }, true, {})
 end
 
----@param t table
+---@param t table?
 function M.table_has_content(t)
   return t and next(t) ~= nil
 end
 
----@param t table|string
+---@param t table|string?
 function M.str_or_nonempty_table(t)
   return type(t) == 'string' or M.table_has_content(t)
 end