Fix project search and status view for new add directory feature

data/core/commands/core.lua

@@ -73,7 +73,7 @@ command.add(nil, {
 
   ["core:find-file"] = function()
     local files = {}
-    for dir, item in core.project_files() do
+    for dir, item in core.get_project_files() do
       if item.type == "file" then
         local filename = dir == core.project_dir and item.filename:match('^[/\\](.+)') or dir .. item.filename
         table.insert(files, common.home_encode(filename))

data/core/init.lua

@@ -155,12 +155,22 @@ local function project_files_iter(state)
   return dir.name, dir.files[state.file_index]
 end
 
-function core.project_files()
+
+function core.get_project_files()
   local state = { dir_index = 1, file_index = 0 }
   return project_files_iter, state
 end
 
 
+function core.project_files_number()
+  local n = 0
+  for i = 1, #core.project_directories do
+    n = n + #core.project_directories[i].files
+  end
+  return n
+end
+
+
 -- create a directory using mkdir but may need to create the parent
 -- directories as well.
 local function create_user_directory()

data/core/statusview.lua

@@ -120,9 +120,7 @@ function StatusView:get_items()
     style.icon_font, "g",
     style.font, style.dim, self.separator2,
     #core.docs, style.text, " / ",
-    -- FIXME: the number of file should be calculated
-    -- across directories.
-    #core.project_directories[1].files, " files"
+    core.project_files_number(), " files"
   }
 end