Mercurial > lxmppd-hg-xmllex / file comparison
comparison: util/events.lua
util/events.lua
- changeset 1180
- 8c5d945c1f35
- parent 1175
- edef0c10e076
- child 1181
- dffbb7d1da4b
equal
deleted
inserted
replaced
| 1179:503d68e7e18a | 1180:8c5d945c1f35 |
|---|---|
| 9 | 9 |
| 10 function new() | 10 function new() |
| 11 local dispatchers = {}; | 11 local dispatchers = {}; |
| 12 local handlers = {}; | 12 local handlers = {}; |
| 13 local event_map = {}; | 13 local event_map = {}; |
| 14 local function _rebuild_index() -- TODO optimize index rebuilding | 14 local function _rebuild_index(event) -- TODO optimize index rebuilding |
| 15 for event, _handlers in pairs(event_map) do | 15 local _handlers = event_map[event]; |
| 16 local index = handlers[event]; | 16 local index = handlers[event]; |
| 17 if index then | 17 if index then |
| 18 for i=#index,1,-1 do index[i] = nil; end | 18 for i=#index,1,-1 do index[i] = nil; end |
| 19 else index = {}; handlers[event] = index; end | 19 else index = {}; handlers[event] = index; end |
| 20 for handler in pairs(_handlers) do | 20 for handler in pairs(_handlers) do |
| 21 t_insert(index, handler); | 21 t_insert(index, handler); |
| 22 end | |
| 23 t_sort(index, function(a, b) return _handlers[a] > _handlers[b]; end); | |
| 24 end | 22 end |
| 23 t_sort(index, function(a, b) return _handlers[a] > _handlers[b]; end); | |
| 25 end; | 24 end; |
| 26 local function add_handler(event, handler, priority) | 25 local function add_handler(event, handler, priority) |
| 27 local map = event_map[event]; | 26 local map = event_map[event]; |
| 28 if map then | 27 if map then |
| 29 map[handler] = priority or 0; | 28 map[handler] = priority or 0; |
| 30 else | 29 else |
| 31 map = {[handler] = priority or 0}; | 30 map = {[handler] = priority or 0}; |
| 32 event_map[event] = map; | 31 event_map[event] = map; |
| 33 end | 32 end |
| 34 _rebuild_index(); | 33 _rebuild_index(event); |
| 35 end; | 34 end; |
| 36 local function remove_handler(event, handler) | 35 local function remove_handler(event, handler) |
| 37 local map = event_map[event]; | 36 local map = event_map[event]; |
| 38 if map then | 37 if map then |
| 39 map[handler] = nil; | 38 map[handler] = nil; |
| 40 _rebuild_index(); | 39 _rebuild_index(event); |
| 41 end | 40 end |
| 42 end; | 41 end; |
| 43 local function add_plugin(plugin) | 42 local function add_plugin(plugin) |
| 44 for event, handler in pairs(plugin) do | 43 for event, handler in pairs(plugin) do |
| 45 add_handler(event, handler); | 44 add_handler(event, handler); |
