51 lines
1.3 KiB
Lua
51 lines
1.3 KiB
Lua
--[[
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A component that establishes a connection to a Roblox event when it is rendered.
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]]
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local CorePackages = game:GetService("CorePackages")
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local Roact = require(CorePackages.Roact)
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local ExternalEventConnection = Roact.Component:extend("ExternalEventConnection")
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function ExternalEventConnection:init()
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self.connection = nil
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end
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--[[
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Render the child component so that ExternalEventConnections can be nested like so:
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Roact.createElement(ExternalEventConnection, {
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event = UserInputService.InputBegan,
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callback = inputBeganCallback,
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}, {
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Roact.createElement(ExternalEventConnection, {
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event = UserInputService.InputEnded,
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callback = inputChangedCallback,
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})
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})
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]]
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function ExternalEventConnection:render()
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return Roact.oneChild(self.props[Roact.Children])
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end
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function ExternalEventConnection:didMount()
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local event = self.props.event
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local callback = self.props.callback
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self.connection = event:Connect(callback)
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end
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function ExternalEventConnection:didUpdate(oldProps)
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if self.props.event ~= oldProps.event or self.props.callback ~= oldProps.callback then
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self.connection:Disconnect()
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self.connection = self.props.event:Connect(self.props.callback)
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end
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end
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function ExternalEventConnection:willUnmount()
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self.connection:Disconnect()
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self.connection = nil
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end
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return ExternalEventConnection |