Move getDelayedDispatch to its own file.

Author: grrowl

src/dispatcher.js

@@ -1,6 +1,7 @@
 
 import Scuttlebutt, { filter } from 'scuttlebutt-vector'
 import * as orderedHistory from './orderedHistory'
+import getDelayedDispatch from './getDelayedDispatch'
 
 import {
   // action constants
@@ -16,50 +17,6 @@ export function isGossipType(type = '') {
   return type.substr(0, 1) !== '@'
 }
 
-// queue a _reduxDispatch call, debounced by animation frame.
-// configurable, but requires use of private methods at the moment
-// keep a reference to dispatcher because methods will change over time
-function getDelayedDispatch(dispatcher) {
-  if (typeof window === 'undefined'
-    || typeof window.requestAnimationFrame !== 'function') {
-    return false
-  }
-
-  const queue = []
-
-  function drainQueue() {
-    let state = dispatcher._reduxGetState(),
-      i
-
-    for (i = 0; i < 100 && (i <= queue.length - 1); i++) {
-      // for-real dispatch the last action, triggering redux's subscribe
-      // (and thus UI re-renders). This prioritises crunching data over
-      // feedback, but potentially we should dispatch perodically, even
-      // with items in the queue
-      if (i < queue.length - 1) {
-        state = dispatcher._historyReducer(state, queue[i])
-      } else {
-        dispatcher._reduxDispatch(queue[i])
-      }
-    }
-
-    // reset the queue
-    queue.splice(0, i + 1)
-
-    if (queue.length)
-      window.requestAnimationFrame(drainQueue)
-  }
-
-  return function delayedDispatch(action) {
-    queue.push(action)
-
-    // on first action, queue dispatching the action queue
-    if (queue.length === 1) {
-      window.requestAnimationFrame(drainQueue)
-    }
-  }
-}
-
 const defaultOptions = {
   customDispatch: getDelayedDispatch,
   isGossipType: isGossipType,

src/getDelayedDispatch.js

@@ -0,0 +1,43 @@
+// queue a _reduxDispatch call, debounced by animation frame.
+// configurable, but requires use of private methods at the moment
+// keep a reference to dispatcher because methods will change over time
+export default function getDelayedDispatch(dispatcher) {
+  if (typeof window === 'undefined'
+    || typeof window.requestAnimationFrame !== 'function') {
+    return false
+  }
+
+  const queue = []
+
+  function drainQueue() {
+    let state = dispatcher._reduxGetState(),
+      i
+
+    for (i = 0; i < 100 && (i <= queue.length - 1); i++) {
+      // for-real dispatch the last action, triggering redux's subscribe
+      // (and thus UI re-renders). This prioritises crunching data over
+      // feedback, but potentially we should dispatch perodically, even
+      // with items in the queue
+      if (i < queue.length - 1) {
+        state = dispatcher._historyReducer(state, queue[i])
+      } else {
+        dispatcher._reduxDispatch(queue[i])
+      }
+    }
+
+    // reset the queue
+    queue.splice(0, i + 1)
+
+    if (queue.length)
+      window.requestAnimationFrame(drainQueue)
+  }
+
+  return function delayedDispatch(action) {
+    queue.push(action)
+
+    // on first action, queue dispatching the action queue
+    if (queue.length === 1) {
+      window.requestAnimationFrame(drainQueue)
+    }
+  }
+}