Book Shortcuts: allow recursively searching folders

frontend/readhistory.lua

@@ -198,11 +198,12 @@ function ReadHistory:getPreviousFile(current_file)
     end
 end
 
-function ReadHistory:getFileByDirectory(directory)
+function ReadHistory:getFileByDirectory(directory, recursive)
     assert(self ~= nil)
     local real_path = realpath(directory)
     for i=1, #self.hist do
-        if realpath(ffiutil.dirname(self.hist[i].file)) == real_path then
+        local ipath = realpath(ffiutil.dirname(self.hist[i].file))
+        if ipath == real_path or (recursive and util.stringStartsWith(ipath, real_path)) then
              return self.hist[i].file
         end
     end

plugins/bookshortcuts.koplugin/main.lua

@@ -48,7 +48,7 @@ function BookShortcuts:onBookShortcut(path)
                     end
                 end
             else
-                file = ReadHistory:getFileByDirectory(path)
+                file = ReadHistory:getFileByDirectory(path, G_reader_settings:isTrue("BookShortcuts_recursive_directory"))
             end
         else
             file = path
@@ -121,6 +121,13 @@ function BookShortcuts:getSubMenuItems()
                     callback = function() G_reader_settings:saveSetting("BookShortcuts_directory_action", "FM") end,
                 },
             },
+        },
+        {
+            text = _("Recursively search folders"),
+            keep_menu_open = true,
+            checked_func = function() return G_reader_settings:isTrue("BookShortcuts_recursive_directory") end,
+            enabled_func = function() return G_reader_settings:readSetting("BookShortcuts_directory_action") == "Last" end,
+            callback = function() G_reader_settings:flipNilOrFalse("BookShortcuts_recursive_directory") end,
             separator = true,
         }
     }