fix #1985 by always return to the parent dir of current doc in the FileManager

frontend/apps/filemanager/filemanager.lua

@@ -229,10 +229,10 @@ function FileManager:init()
     self:handleEvent(Event:new("SetDimensions", self.dimen))
 end
 
-function FileManager:resetDimen(dimen)
-    self.dimen = dimen
+function FileManager:reinit(path)
+    self.dimen = Screen:getSize()
     -- backup the root path and path items
-    self.root_path = self.file_chooser.path
+    self.root_path = path or self.file_chooser.path
     local path_items_backup = {}
     for k, v in pairs(self.file_chooser.path_items) do
         path_items_backup[k] = v

frontend/apps/reader/modules/readermenu.lua

@@ -38,14 +38,14 @@ function ReaderMenu:init()
                 self:onTapCloseMenu()
                 self.ui:onClose()
                 local FileManager = require("apps/filemanager/filemanager")
+                local lastdir = nil
+                local last_file = G_reader_settings:readSetting("lastfile")
+                if last_file then
+                    lastdir = last_file:match("(.*)/")
+                end
                 if FileManager.instance then
-                    FileManager.instance:resetDimen(Screen:getSize())
+                    FileManager.instance:reinit(lastdir)
                 else
-                    local lastdir = nil
-                    local last_file = G_reader_settings:readSetting("lastfile")
-                    if last_file then
-                        lastdir = last_file:match("(.*)/")
-                    end
                     FileManager:showFiles(lastdir)
                 end
             end,