19 lines
388 B
JavaScript
19 lines
388 B
JavaScript
"use strict"
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var throttle = require("../api/throttle")
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module.exports = function(root, renderer, pubsub, callback) {
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var run = throttle(callback)
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if (renderer != null) {
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renderer.setEventCallback(function(e) {
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if (e.redraw !== false) run()
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})
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}
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if (pubsub != null) {
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if (root.redraw) pubsub.unsubscribe(root.redraw)
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pubsub.subscribe(run)
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}
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return root.redraw = run
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}
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