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38 lines
1.3 KiB
Lua
38 lines
1.3 KiB
Lua
local Observable = require "rx.observable"
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local Subscription = require "rx.subscription"
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local util = require "rx.util"
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--- Returns a new Observable that produces the values of the original delayed by a time period.
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-- @arg {number|function} time - An amount in milliseconds to delay by, or a function which returns
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-- this value.
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-- @arg {Scheduler} scheduler - The scheduler to run the Observable on.
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-- @returns {Observable}
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function Observable:delay(time, scheduler)
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time = type(time) ~= "function" and util.constant(time) or time
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return Observable.create(function(observer)
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local actions = {}
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local function delay(key)
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return function(...)
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local arg = util.pack(...)
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local handle = scheduler:schedule(function()
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observer[key](observer, util.unpack(arg))
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end, time())
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table.insert(actions, handle)
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end
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end
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local subscription = self:subscribe(delay("onNext"), delay("onError"), delay("onCompleted"))
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return Subscription.create(function()
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if subscription then
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subscription:unsubscribe()
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end
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for i = 1, #actions do
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actions[i]:unsubscribe()
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end
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end)
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end)
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end
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