From bc4fa6b198557a7f3989eb0865e2c77ac7451d29 Mon Sep 17 00:00:00 2001
From: kibigo! <marrus-sh@users.noreply.github.com>
Date: Sun, 3 Dec 2017 23:26:40 -0800
Subject: Rename themes -> flavours ? ?

---
 .../flavours/glitch/util/schedule_idle_task.js     | 29 ++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 app/javascript/flavours/glitch/util/schedule_idle_task.js

(limited to 'app/javascript/flavours/glitch/util/schedule_idle_task.js')

diff --git a/app/javascript/flavours/glitch/util/schedule_idle_task.js b/app/javascript/flavours/glitch/util/schedule_idle_task.js
new file mode 100644
index 000000000..b04d4a8ee
--- /dev/null
+++ b/app/javascript/flavours/glitch/util/schedule_idle_task.js
@@ -0,0 +1,29 @@
+// Wrapper to call requestIdleCallback() to schedule low-priority work.
+// See https://developer.mozilla.org/en-US/docs/Web/API/Background_Tasks_API
+// for a good breakdown of the concepts behind this.
+
+import Queue from 'tiny-queue';
+
+const taskQueue = new Queue();
+let runningRequestIdleCallback = false;
+
+function runTasks(deadline) {
+  while (taskQueue.length && deadline.timeRemaining() > 0) {
+    taskQueue.shift()();
+  }
+  if (taskQueue.length) {
+    requestIdleCallback(runTasks);
+  } else {
+    runningRequestIdleCallback = false;
+  }
+}
+
+function scheduleIdleTask(task) {
+  taskQueue.push(task);
+  if (!runningRequestIdleCallback) {
+    runningRequestIdleCallback = true;
+    requestIdleCallback(runTasks);
+  }
+}
+
+export default scheduleIdleTask;
-- 
cgit