[rbdr/custom_event_support.lua] / lib / custom_event_support.lua

local CustomEventSupport = { static = {} }

CustomEventSupport.static.event_listeners = nil

function CustomEventSupport.static:bind(event_type, event_handler)
  local found, listeners

  if not self.static.event_listeners then
    self.static.event_listeners = {}
  end

  if not self.static.event_listeners[event_type] then
    self.static.event_listeners[event_type] = {}
  end

  found = false

  listeners = self.static.event_listeners[event_type]
  for i, v in ipairs(listeners) do
    if v == event_handler then
      found = true
      break
    end
  end

  if not found then
    table.insert(self.static.event_listeners[event_type], event_handler)
  end

  return self.static

end

function CustomEventSupport.static:unbind(event_type, event_handler)
  local found, listeners, counter

  if not self.static.event_listeners then
    self.static.event_listeners = {}
  end

  if not self.static.event_listeners[event_type] then
    self.static.event_listeners[event_type] = {}
  end

  found = false

  listeners = self.static.event_listeners[event_type]
  for i, v in ipairs(listeners) do
    if v == event_handler then
      found = true
      counter = i
      break
    end
  end

  if found then
    table.remove(self.static.event_listeners[event_type], counter)
  end

  return self.static
end

function CustomEventSupport.static:dispatch(event_type, data)
  local event, listeners, instance, i

  if not self.static.event_listeners then
    self.static.event_listeners = {}
  end

  if not data then
    data = {}
  end

  if not data.target then
    data.target = self
  end

  -- Create new CustomEvent
  event = CustomEvent:new(event_type, data)
  listeners = self.static.event_listeners[event_type] or {}
  instance = self.static

  for i, v in ipairs(listeners) do
    v(instance, event)
    if event.are_immediate_handlers_prevented == true then
      break
    end
  end
end

CustomEventSupport.event_listeners = nil

function CustomEventSupport:bind(event_type, event_handler)
  local found, listeners

  if not self.event_listeners then
    self.event_listeners = {}
  end

  if not self.event_listeners[event_type] then
    self.event_listeners[event_type] = {}
  end

  found = false

  listeners = self.event_listeners[event_type]
  for i, v in ipairs(listeners) do
    if v == event_handler then
      found = true
      break
    end
  end

  if not found then
    table.insert(self.event_listeners[event_type], event_handler)
  end

  return self

end

function CustomEventSupport:unbind(event_type, event_handler)
  local found, listeners, counter

  if not self.event_listeners then
    self.event_listeners = {}
  end

  if not self.event_listeners[event_type] then
    self.event_listeners[event_type] = {}
  end

  found = false

  listeners = self.event_listeners[event_type]
  for i, v in ipairs(listeners) do
    if v == event_handler then
      found = true
      counter = i
      break
    end
  end

  if found then
    table.remove(self.event_listeners[event_type], counter)
  end

  return self
end

function CustomEventSupport:dispatch(event_type, data)
  local event, listeners, instance, i

  if not self.event_listeners then
    self.event_listeners = {}
  end

  if not data then
    data = {}
  end

  if not data.target then
    data.target = self
  end

  -- Create new CustomEvent
  event = CustomEvent:new(event_type, data)
  listeners = self.event_listeners[event_type] or {}
  instance = self

  for i, v in ipairs(listeners) do
    v(instance, event)
    if event.are_immediate_handlers_prevented == true then
      break
    end
  end
end

return CustomEventSupport
Commit	Line	Data
676ef49d BB	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