Sorting: adds Sort by name - mixed files and folders (#4140)

Also moves the 2 Sort by percent in a sub-menu

frontend/apps/filemanager/filemanager.lua

@@ -743,6 +743,7 @@ function FileManager:getSortingMenuTable()
     local fm = self
     local collates = {
         strcoll = {_("filename"), _("Sort by filename")},
+        strcoll_mixed = {_("name mixed"), _("Sort by name - mixed files and folders")},
         access = {_("date read"), _("Sort by last read date")},
         change = {_("date added"), _("Sort by date added")},
         modification = {_("date modified"), _("Sort by date modified")},
@@ -760,6 +761,14 @@ function FileManager:getSortingMenuTable()
             callback = function() fm:setCollate(collate) end,
         }
     end
+    local get_collate_percent = function()
+        local collate_type = G_reader_settings:readSetting("collate")
+        if collate_type == "percent_unopened_first" or collate_type == "percent_unopened_last" then
+            return collates[collate_type][2]
+        else
+            return _("Sort by percent")
+        end
+    end
     return {
         text_func = function()
             return util.template(
@@ -769,13 +778,23 @@ function FileManager:getSortingMenuTable()
         end,
         sub_item_table = {
             set_collate_table("strcoll"),
+            set_collate_table("strcoll_mixed"),
             set_collate_table("access"),
             set_collate_table("change"),
             set_collate_table("modification"),
             set_collate_table("size"),
             set_collate_table("type"),
-            set_collate_table("percent_unopened_first"),
-            set_collate_table("percent_unopened_last"),
+            {
+                text_func =  get_collate_percent,
+                checked_func = function()
+                    return fm.file_chooser.collate == "percent_unopened_first"
+                        or fm.file_chooser.collate == "percent_unopened_last"
+                end,
+                sub_item_table = {
+                    set_collate_table("percent_unopened_first"),
+                    set_collate_table("percent_unopened_last"),
+                }
+            },
         }
     }
 end

frontend/ui/widget/filechooser.lua

@@ -116,6 +116,7 @@ end
 function FileChooser:genItemTableFromPath(path)
     local dirs = {}
     local files = {}
+    local up_folder_arrow = "⬆ ../"
 
     self.list(path, dirs, files)
 
@@ -190,10 +191,12 @@ function FileChooser:genItemTableFromPath(path)
         sorting = function(a, b) return sorting_unreversed(b, a) end
     end
 
-    table.sort(dirs, sorting)
+    if self.collate ~= "strcoll_mixed" then
+        table.sort(dirs, sorting)
+        table.sort(files, sorting)
+    end
     if path ~= "/" then table.insert(dirs, 1, {name = ".."}) end
     if self.show_current_dir_for_hold then table.insert(dirs, 1, {name = "."}) end
-    table.sort(files, sorting)
 
     local item_table = {}
     for i, dir in ipairs(dirs) do
@@ -211,7 +214,7 @@ function FileChooser:genItemTableFromPath(path)
         end
         local text
         if dir.name == ".." then
-            text = "⬆ ../"
+            text = up_folder_arrow
         elseif dir.name == "." then -- possible with show_current_dir_for_hold
             text = _("Long-press to select current directory")
         else
@@ -247,6 +250,18 @@ function FileChooser:genItemTableFromPath(path)
         end
         table.insert(item_table, file_item)
     end
+
+    if self.collate == "strcoll_mixed" then
+        sorting = function(a, b)
+            if b.text == up_folder_arrow then return false end
+            return self.strcoll(a.text, b.text)
+        end
+        if self.reverse_collate then
+            local sorting_unreversed = sorting
+            sorting = function(a, b) return sorting_unreversed(b, a) end
+        end
+        table.sort(item_table, sorting)
+    end
     -- lfs.dir iterated node string may be encoded with some weird codepage on
     -- Windows we need to encode them to utf-8
     if ffi.os == "Windows" then