Fix "Open next file" (#11272)

frontend/apps/reader/modules/readerstatus.lua

@@ -169,12 +169,8 @@ function ReaderStatus:openFileBrowser()
 end
 
 function ReaderStatus:onOpenNextDocumentInFolder()
-    local FileManager = require("apps/filemanager/filemanager")
-    if not FileManager.instance then
-        self.ui:showFileManager()
-    end
-    local next_file = FileManager.instance.file_chooser:getNextFile(self.document.file)
-    FileManager.instance:onClose()
+    local FileChooser = require("ui/widget/filechooser")
+    local next_file = FileChooser:getNextFile(self.document.file)
     if next_file then
         self.ui:switchDocument(next_file)
     else

frontend/ui/widget/filechooser.lua

@@ -225,8 +225,8 @@ function FileChooser:show_file(filename, fullpath)
     for _, pattern in ipairs(self.exclude_files) do
         if filename:match(pattern) then return false end
     end
-    if not self.show_unsupported and self.file_filter ~= nil and not self.file_filter(filename) then return false end
-    if not self.show_finished and fullpath ~= nil and filemanagerutil.getStatus(fullpath) == "complete" then return false end
+    if not FileChooser.show_unsupported and self.file_filter ~= nil and not self.file_filter(filename) then return false end
+    if not FileChooser.show_finished and fullpath ~= nil and filemanagerutil.getStatus(fullpath) == "complete" then return false end
     return true
 end
 
@@ -243,7 +243,7 @@ function FileChooser:getList(path, collate)
     if ok then
         unreadable_dir_content[path] = nil
         for f in iter, dir_obj do
-            if self.show_hidden or not util.stringStartsWith(f, ".") then
+            if FileChooser.show_hidden or not util.stringStartsWith(f, ".") then
                 local fullpath = path.."/"..f
                 local attributes = lfs.attributes(fullpath) or {}
                 local item = true
@@ -559,14 +559,20 @@ end
 
 -- Used in ReaderStatus:onOpenNextDocumentInFolder().
 function FileChooser:getNextFile(curr_file)
+    local show_finished = FileChooser.show_finished
+    FileChooser.show_finished = true
+    local curr_path = curr_file:match(".*/"):gsub("/$", "")
+    local item_table = self:genItemTableFromPath(curr_path)
+    FileChooser.show_finished = show_finished
     local is_curr_file_found
-    for i, item in ipairs(self.item_table) do
+    for i, item in ipairs(item_table) do
         if not is_curr_file_found and item.path == curr_file then
             is_curr_file_found = true
         end
         if is_curr_file_found then
-            local next_file = self.item_table[i+1]
-            if next_file and next_file.is_file and DocumentRegistry:hasProvider(next_file.path) then
+            local next_file = item_table[i+1]
+            if next_file and next_file.is_file and DocumentRegistry:hasProvider(next_file.path)
+                    and filemanagerutil.getStatus(next_file.path) ~= "complete" then
                 return next_file.path
             end
         end