git.r.bdr.sh - rbdr/custom_event_support.lua/blame_incremental

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Commit	Line	Data
	1	local CustomEventSupport = { static = {} }
	2
	3	CustomEventSupport.static.event_listeners = nil
	4
	5	function CustomEventSupport.static:bind(event_type, event_handler)
	6	local found, listeners
	7
	8	if not self.static.event_listeners then
	9	self.static.event_listeners = {}
	10	end
	11
	12	if not self.static.event_listeners[event_type] then
	13	self.static.event_listeners[event_type] = {}
	14	end
	15
	16	found = false
	17
	18	listeners = self.static.event_listeners[event_type]
	19	for i, v in ipairs(listeners) do
	20	if v == event_handler then
	21	found = true
	22	break
	23	end
	24	end
	25
	26	if not found then
	27	table.insert(self.static.event_listeners[event_type], event_handler)
	28	end
	29
	30	return self.static
	31
	32	end
	33
	34	function CustomEventSupport.static:unbind(event_type, event_handler)
	35	local found, listeners, counter
	36
	37	if not self.static.event_listeners then
	38	self.static.event_listeners = {}
	39	end
	40
	41	if not self.static.event_listeners[event_type] then
	42	self.static.event_listeners[event_type] = {}
	43	end
	44
	45	found = false
	46
	47	listeners = self.static.event_listeners[event_type]
	48	for i, v in ipairs(listeners) do
	49	if v == event_handler then
	50	found = true
	51	counter = i
	52	break
	53	end
	54	end
	55
	56	if found then
	57	table.remove(self.static.event_listeners[event_type], counter)
	58	end
	59
	60	return self.static
	61	end
	62
	63	function CustomEventSupport.static:dispatch(event_type, data)
	64	local event, listeners, instance, i
	65
	66	if not self.static.event_listeners then
	67	self.static.event_listeners = {}
	68	end
	69
	70	if not data then
	71	data = {}
	72	end
	73
	74	if not data.target then
	75	data.target = self
	76	end
	77
	78	-- Create new CustomEvent
	79	event = CustomEvent:new(event_type, data)
	80	listeners = self.static.event_listeners[event_type] or {}
	81	instance = self.static
	82
	83	for i, v in ipairs(listeners) do
	84	v(instance, event)
	85	if event.are_immediate_handlers_prevented == true then
	86	break
	87	end
	88	end
	89	end
	90
	91	CustomEventSupport.event_listeners = nil
	92
	93	function CustomEventSupport:bind(event_type, event_handler)
	94	local found, listeners
	95
	96	if not self.event_listeners then
	97	self.event_listeners = {}
	98	end
	99
	100	if not self.event_listeners[event_type] then
	101	self.event_listeners[event_type] = {}
	102	end
	103
	104	found = false
	105
	106	listeners = self.event_listeners[event_type]
	107	for i, v in ipairs(listeners) do
	108	if v == event_handler then
	109	found = true
	110	break
	111	end
	112	end
	113
	114	if not found then
	115	table.insert(self.event_listeners[event_type], event_handler)
	116	end
	117
	118	return self
	119
	120	end
	121
	122	function CustomEventSupport:unbind(event_type, event_handler)
	123	local found, listeners, counter
	124
	125	if not self.event_listeners then
	126	self.event_listeners = {}
	127	end
	128
	129	if not self.event_listeners[event_type] then
	130	self.event_listeners[event_type] = {}
	131	end
	132
	133	found = false
	134
	135	listeners = self.event_listeners[event_type]
	136	for i, v in ipairs(listeners) do
	137	if v == event_handler then
	138	found = true
	139	counter = i
	140	break
	141	end
	142	end
	143
	144	if found then
	145	table.remove(self.event_listeners[event_type], counter)
	146	end
	147
	148	return self
	149	end
	150
	151	function CustomEventSupport:dispatch(event_type, data)
	152	local event, listeners, instance, i
	153
	154	if not self.event_listeners then
	155	self.event_listeners = {}
	156	end
	157
	158	if not data then
	159	data = {}
	160	end
	161
	162	if not data.target then
	163	data.target = self
	164	end
	165
	166	-- Create new CustomEvent
	167	event = CustomEvent:new(event_type, data)
	168	listeners = self.event_listeners[event_type] or {}
	169	instance = self
	170
	171	for i, v in ipairs(listeners) do
	172	v(instance, event)
	173	if event.are_immediate_handlers_prevented == true then
	174	break
	175	end
	176	end
	177	end
	178
	179	return CustomEventSupport