Add simple GUI to check records interactively.

gui.lua

@@ -0,0 +1,92 @@
+
+local FORMNAME = "xban2:main"
+
+local states = { }
+
+local table_insert, table_concat =
+      table.insert, table.concat
+
+local ESC = minetest.formspec_escape
+
+local function make_fs(name)
+	local state = states[name]
+	if not state then return end
+	local list, index, filter = state.list, state.index, state.filter
+	if index > #list then
+		index = #list
+	end
+	local fs = {
+		"size[10,8]",
+		"label[0.5,0.6;Filter]",
+		"field[1.5,0.5;6,2;filter;;"..ESC(filter).."]",
+		"button[7.5,0.5;2,1;search;Search]",
+	}
+	table_insert(fs,
+			("textlist[0.5,2;3,5.5;player;%s;%d;0]"):
+			format(table_concat(list, ","), index))
+	local record_name = list[index]
+	if record_name then
+		local record, err = xban.get_record(record_name)
+		if record then
+			local reclist = { }
+			for _, r in ipairs(record) do
+				table_insert(reclist, ESC(r))
+			end
+			table_insert(fs,
+					("textlist[4,2;5,5.5;entry;%s;0;0]"):
+					format(table_concat(reclist, ",")))
+		else
+			table_insert(fs,
+					"textlist[4,2;5,5.5;entry;"..ESC(err)..";0]")
+		end
+	end
+	fs = table_concat(fs)
+	print(fs)
+	return fs
+end
+
+minetest.register_on_player_receive_fields(function(player, formname, fields)
+	if formname ~= FORMNAME then return end
+	local name = player:get_player_name()
+	local state = states[name]
+	if fields.player then
+		local t = minetest.explode_textlist_event(fields.player)
+		if (t.type == "CHG") or (t.type == "DCL") then
+			state.index = t.index
+			minetest.show_formspec(name, FORMNAME, make_fs(name))
+		end
+		return
+	end
+	if fields.search then
+		local filter = fields.filter or ""
+		state.filter = filter
+		local list = { }
+		state.list = list
+		for k in pairs(minetest.auth_table) do
+			if k:find(filter, 1, true) then
+				table_insert(list, k)
+			end
+		end
+		table.sort(list)
+		minetest.show_formspec(name, FORMNAME, make_fs(name))
+	end
+end)
+
+minetest.register_chatcommand("xban_gui", {
+	description = "Show XBan GUI",
+	params = "",
+	func = function(name, params)
+		local state = states[name]
+		if not state then
+			state = { index=1, filter="" }
+			states[name] = state
+			local list = { }
+			state.list = list
+			for k in pairs(minetest.auth_table) do
+				table_insert(list, k)
+			end
+			table.sort(list)
+		end
+		minetest.show_formspec(name, FORMNAME, make_fs(name))
+	end,
+})