Rework main menu confirmation dialogs (minetest#12356)

builtin/mainmenu/common.lua

@@ -242,3 +242,11 @@ function menu_worldmt_legacy(selected)
  end
  end
 end
+
+function confirmation_formspec(message, confirm_id, confirm_label, cancel_id, cancel_label)
+ return "size[10,2.5,true]" ..
+ "label[0.5,0.5;" .. message .. "]" ..
+ "style[" .. confirm_id .. ";bgcolor=red]" ..
+ "button[0.5,1.5;2.5,0.5;" .. confirm_id .. ";" .. confirm_label .. "]" ..
+ "button[7.0,1.5;2.5,0.5;" .. cancel_id .. ";" .. cancel_label .. "]"
+end

builtin/mainmenu/dlg_contentstore.lua

@@ -488,12 +488,10 @@ local confirm_overwrite = {}
 function confirm_overwrite.get_formspec()
  local package = confirm_overwrite.package
 
- return "size[11.5,4.5,true]" ..
- "label[2,2;" ..
- fgettext("\"$1\" already exists. Would you like to overwrite it?", package.name) .. "]"..
- "style[install;bgcolor=red]" ..
- "button[3.25,3.5;2.5,0.5;install;" .. fgettext("Overwrite") .. "]" ..
- "button[5.75,3.5;2.5,0.5;cancel;" .. fgettext("Cancel") .. "]"
+ return confirmation_formspec(
+ fgettext("\"$1\" already exists. Would you like to overwrite it?", package.name),
+ 'install', fgettext("Overwrite"),
+ 'cancel', fgettext("Cancel"))
 end
 
 function confirm_overwrite.handle_submit(this, fields)

builtin/mainmenu/dlg_delete_content.lua

@@ -18,15 +18,10 @@
 --------------------------------------------------------------------------------
 
 local function delete_content_formspec(dialogdata)
- local retval =
- "size[11.5,4.5,true]" ..
- "label[2,2;" ..
- fgettext("Are you sure you want to delete \"$1\"?", dialogdata.content.name) .. "]"..
- "style[dlg_delete_content_confirm;bgcolor=red]" ..
- "button[3.25,3.5;2.5,0.5;dlg_delete_content_confirm;" .. fgettext("Delete") .. "]" ..
- "button[5.75,3.5;2.5,0.5;dlg_delete_content_cancel;" .. fgettext("Cancel") .. "]"
-
- return retval
+ return confirmation_formspec(
+ fgettext("Are you sure you want to delete \"$1\"?", dialogdata.content.name),
+ 'dlg_delete_content_confirm', fgettext("Delete"),
+ 'dlg_delete_content_cancel', fgettext("Cancel"))
 end
 
 --------------------------------------------------------------------------------

builtin/mainmenu/dlg_delete_world.lua

@@ -17,14 +17,10 @@
 
 
 local function delete_world_formspec(dialogdata)
- local retval =
- "size[10,2.5,true]" ..
- "label[0.5,0.5;" ..
- fgettext("Delete World \"$1\"?", dialogdata.delete_name) .. "]" ..
- "style[world_delete_confirm;bgcolor=red]" ..
- "button[0.5,1.5;2.5,0.5;world_delete_confirm;" .. fgettext("Delete") .. "]" ..
- "button[7.0,1.5;2.5,0.5;world_delete_cancel;" .. fgettext("Cancel") .. "]"
- return retval
+ return confirmation_formspec(
+ fgettext("Delete World \"$1\"?", dialogdata.delete_name),
+ 'world_delete_confirm', fgettext("Delete"),
+ 'world_delete_cancel', fgettext("Cancel"))
 end
 
 local function delete_world_buttonhandler(this, fields)