dotfiles/dot_config/awesome/lib/animation/subscribable.lua
2024-04-14 18:41:15 -07:00

47 lines
1.1 KiB
Lua

-------------------------------------------
-- @author https://github.com/Kasper24
-- @copyright 2021-2022 Kasper24
-------------------------------------------
local gobject = require("gears.object")
-- Kidna copying awesotre's stores on a surface level for added compatibility
local function subscribable()
local ret = gobject({})
local subscribed = {}
-- Subscrubes a function to the object so that it's called when `fire` is
-- Calls subscribe_callback if it exists as well
function ret:subscribe(func)
local id = tostring(func):gsub("function: ", "")
subscribed[id] = func
if self.subscribe_callback then
self.subscribe_callback(func)
end
end
-- Unsubscribes a function and calls unsubscribe_callback if it exists
function ret:unsubscribe(func)
if not func then
subscribed = {}
else
local id = tostring(func):gsub("function: ", "")
subscribed[id] = nil
end
if self.unsubscribe_callback then
self.unsubscribe_callback(func)
end
end
function ret:fire(...)
for _, func in pairs(subscribed) do
func(...)
end
end
return ret
end
return subscribable