inline if didn't work. Added intermediate register_event function in transition library

official/copy_paste_metadata.lua

@@ -27,6 +27,7 @@ USAGE
 
 local dt = require "darktable"
 local du = require "lib/dtutils"
+           require "lib/darktable_transition"
 local gettext = dt.gettext
 
 du.check_min_api_version("3.0.0", "copy_paste_metadata")
@@ -126,13 +127,13 @@ dt.gui.libs.image.register_action(
 )
 
 dt.register_event(
-  CURR_API_STRING >= "6.2.1" and "capmd1", "shortcut" or "shortcut" ,
+  "capmd1", "shortcut",
   function(event, shortcut) copy(dt.gui.action_images[1]) end,
   "copy metadata"
 )
 
 dt.register_event(
-  CURR_API_STRING >= "6.2.1" and "capmd2", "shortcut" or "shortcut" ,
+  "capmd2", "shortcut",
   function(event, shortcut) paste(dt.gui.action_images) end,
   "paste metadata"
 )

official/enfuse.lua

@@ -36,6 +36,7 @@ local dt = require "darktable"
 local du = require "lib/dtutils"
 local df = require "lib/dtutils.file"
 local dtsys = require "lib/dtutils.system"
+           require "lib/darktable_transition"
 
 local PS = dt.configuration.running_os == "windows" and "\\" or "/"
 local CURR_API_STRING = dt.configuration.api_version_string
@@ -269,7 +270,7 @@ if enfuse_installed then
   else
     if not enf.event_registered then
       dt.register_event(
-        CURR_API_STRING >= "6.2.1" and "enfuse", "view-changed" or "view-chagned" ,
+        "enfuse", "view-changed",
         function(event, old_view, new_view)
           if new_view.name == "lighttable" and old_view.name == "darkroom" then
             install_module()

official/generate_image_txt.lua

@@ -36,6 +36,7 @@ USAGE
 
 local dt = require "darktable"
 local du = require "lib/dtutils"
+           require "lib/darktable_transition"
 require "darktable.debug"
 
 du.check_min_api_version("2.1.0", "generate_image_txt") 
@@ -66,7 +67,7 @@ end
 local command_setting = dt.preferences.read("generate_image_txt", "command", "string")
 check_command(command_setting)
 
-dt.register_event(CURR_API_STRING >= "6.2.1" and "gen_img_txt", "mouse-over-image-changed" or "mouse-over-image-chagned" , 
+dt.register_event("gen_img_txt", "mouse-over-image-changed", 
     function(event, img)
     -- no need to waste processing time if the image has a txt file already
     if not img or img.has_txt or not dt.preferences.read("generate_image_txt", "enabled", "bool") then

official/image_path_in_ui.lua

@@ -30,6 +30,7 @@ This plugin will add a widget at the bottom of the left column in lighttable mod
 ]]
 local dt = require "darktable"
 local du = require "lib/dtutils"
+           require "lib/darktable_transition"
 
 du.check_min_api_version("2.0.0", "image_path_in_ui") 
 local CURR_API_STRING = dt.configuration.api_version_string
@@ -74,7 +75,7 @@ if dt.gui.current_view().id == "lighttable" then
 else
   if not ipiu.event_registered then
     dt.register_event(
-      CURR_API_STRING >= "6.2.1" and "ipiu", "view-changed" or "view-changed" ,
+      "ipiu", "view-changed",
       function(event, old_view, new_view)
         if new_view.name == "lighttable" and old_view.name == "darkroom" then
           install_module()
@@ -85,7 +86,7 @@ else
   end
 end
 
-dt.register_event(CURR_API_STRING >= "6.2.1" and "ipiu", "mouse-over-image-changed" or "mouse-over-image-changed" , reset_widget);
+dt.register_event("ipiu", "mouse-over-image-changed", reset_widget);
 
   --
 -- vim: shiftwidth=2 expandtab tabstop=2 cindent syntax=lua

official/import_filter_manager.lua

@@ -31,6 +31,7 @@ USAGE
 ]]
 
 local dt = require "darktable"
+           require "lib/darktable_transition"
 
 local import_filter_list = {}
 local n_import_filters = 1
@@ -57,7 +58,7 @@ dt.gui.libs.import.register_widget(filter_dropdown)
 
 
 -- this is just a wrapper which calls the active import filter
-dt.register_event(CURR_API_STRING >= "6.2.1" and "ifm", "pre-import" or "pre-import" , function(event, images)
+dt.register_event("ifm", "pre-import", function(event, images)
   local active_filter = dt.preferences.read("import_filter_manager", "active_filter", "string")
   if active_filter == "" then return end
   local callback = import_filter_list[active_filter]

official/save_selection.lua

@@ -35,7 +35,7 @@ increase it if you need more temporary selection buffers
 ]]
 local dt = require "darktable"
 local du = require "lib/dtutils"
-
+           require "lib/darktable_transition"
 du.check_min_api_version("2.0.0", "save_selection") 
 local CURR_API_STRING = dt.configuration.api_version_string
 
@@ -43,16 +43,16 @@ local buffer_count = 5
 
 for i=1,buffer_count do
   local saved_selection
-  dt.register_event(CURR_API_STRING >= "6.2.1" and "save_selection", "shortcut" or "shortcut" ,function()
+  dt.register_event("save_selection", "shortcut", function()
     saved_selection = dt.gui.selection()
   end,"save to buffer "..i)
-  dt.register_event(CURR_API_STRING >= "6.2.1" and "save_selection1", "shortcut" or "shortcut" ,function()
+  dt.register_event("save_selection1", "shortcut", function()
     dt.gui.selection(saved_selection)
   end,"restore from buffer "..i)
 end
 
 local bounce_buffer = {}
-dt.register_event(CURR_API_STRING >= "6.2.1" and "save_selection2", "shortcut" or "shortcut" ,function()
+dt.register_event("save_selection2", "shortcut", function()
   bounce_buffer = dt.gui.selection(bounce_buffer)
 end,"switch selection with temporary buffer")