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-rw-r--r--util/events.lua11
1 files changed, 8 insertions, 3 deletions
diff --git a/util/events.lua b/util/events.lua
index 81bea639..8e05072d 100644
--- a/util/events.lua
+++ b/util/events.lua
@@ -10,21 +10,26 @@
local pairs = pairs;
local t_insert = table.insert;
local t_sort = table.sort;
+local setmetatable = setmetatable;
+local next = next;
module "events"
function new()
local handlers = {};
local event_map = {};
- local function _rebuild_index(event) -- TODO optimize index rebuilding
+ local function _rebuild_index(handlers, event)
local _handlers = event_map[event];
+ if not _handlers or next(_handlers) == nil then return; end
local index = {};
for handler in pairs(_handlers) do
t_insert(index, handler);
end
t_sort(index, function(a, b) return _handlers[a] > _handlers[b]; end);
handlers[event] = index;
+ return index;
end;
+ setmetatable(handlers, { __index = _rebuild_index });
local function add_handler(event, handler, priority)
local map = event_map[event];
if map then
@@ -33,13 +38,13 @@ function new()
map = {[handler] = priority or 0};
event_map[event] = map;
end
- _rebuild_index(event);
+ handlers[event] = nil;
end;
local function remove_handler(event, handler)
local map = event_map[event];
if map then
map[handler] = nil;
- _rebuild_index(event);
+ handlers[event] = nil;
end
end;
local function add_handlers(handlers)