1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
local EventMsgCenter = {}
-- <event, {callbacks}>
local _broadcast = {}
EventMsgCenter.registerMsg = function(e, callback, first)
if _broadcast[e] == nil then
_broadcast[e] = {}
end
first = first or false
EventMsgCenter.unregisterMsg(e, callback)
if not first then
table.insert(_broadcast[e], callback)
else
table.insert(_broadcast[e], 1, callback)
end
end
local removeElement = function(t, e)
for i, v in ipairs(t) do
if v == e then
table.remove(t, i)
break
end
end
end
EventMsgCenter.unregisterMsg = function(e, callback)
if _broadcast[e] == nil or callback == nil then
return
end
removeElement(_broadcast[e], callback)
end
EventMsgCenter.unregisterAllMsgByEvent = function(e)
_broadcast[e] = nil
end
EventMsgCenter.unregisterAllMsg = function()
_broadcast = {}
end
EventMsgCenter.sendMsg = function(e, ...)
local callbacks = _broadcast[e]
if callbacks == nil then
return
end
for _, f in ipairs(callbacks) do
if f ~= nil then
f(...)
end
end
end
return EventMsgCenter
|
