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generated by cgit v1.2.3 (git 2.39.1) at 2025-02-12 00:42:57 +0000
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--Minetest
--Copyright (C) 2014 sapier
--
--self program is free software; you can redistribute it and/or modify
--it under the terms of the GNU Lesser General Public License as published by
--the Free Software Foundation; either version 2.1 of the License, or
--(at your option) any later version.
--
--self program is distributed in the hope that it will be useful,
--but WITHOUT ANY WARRANTY; without even the implied warranty of
--MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
--GNU Lesser General Public License for more details.
--
--You should have received a copy of the GNU Lesser General Public License along
--with self program; if not, write to the Free Software Foundation, Inc.,
--51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

ui = {}
ui.childlist = {}
ui.default = nil

--------------------------------------------------------------------------------
function ui.add(child)
	--TODO check child
	ui.childlist[child.name] = child

	return child.name
end

--------------------------------------------------------------------------------
function ui.delete(child)

	if ui.childlist[child.name] == nil then
		return false
	end

	ui.childlist[child.name] = nil
	return true
end

--------------------------------------------------------------------------------
function ui.set_default(name)
	ui.default = name
end

--------------------------------------------------------------------------------
function ui.find_by_name(name)
	return ui.childlist[name]
end

--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
-- Internal functions not to be called from user
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------

--------------------------------------------------------------------------------
function ui.update()
	local formspec = ""

	-- handle errors
	if gamedata ~= nil and gamedata.errormessage ~= nil then
		local ar = gamedata.errormessage:split("\n")
		for i = 1, #ar do
			local text = ar[i]
			-- Hack to add word wrapping.
			-- TODO: Add engine support for wrapping in formspecs
			while #text > 80 do
				if formspec ~= "" then
					formspec = formspec .. ","
				end
				formspec = formspec .. core.formspec_escape(string.sub(text, 1, 79))
				text = string.sub(text, 80, #text)
			end
			if formspec ~= "" then
				formspec = formspec .. ","
			end
			formspec = formspec .. core.formspec_escape(text)
		end
		local error_title
		if string.find(gamedata.errormessage, "ModError") then
			error_title = fgettext("An error occured in a Lua script, such as a mod:")
		else
			error_title = fgettext("An error occured:")
		end
		formspec = "size[12,5]" ..
				"label[0.5,0;" .. error_title ..