node_modules

1 files changed, 29 insertions, 0 deletions

diff --git a/node_modules/fbjs/lib/requestAnimationFrame.js.flow b/node_modules/fbjs/lib/requestAnimationFrame.js.flow
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index 000000000..49ddb96e1
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+++ b/node_modules/fbjs/lib/requestAnimationFrame.js.flow
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+/**
+ * Copyright 2014-2015, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ *
+ * @providesModule requestAnimationFrame
+ */
+
+var emptyFunction = require('./emptyFunction');
+var nativeRequestAnimationFrame = require('./nativeRequestAnimationFrame');
+
+var lastTime = 0;
+
+var requestAnimationFrame = nativeRequestAnimationFrame || function (callback) {
+  var currTime = Date.now();
+  var timeDelay = Math.max(0, 16 - (currTime - lastTime));
+  lastTime = currTime + timeDelay;
+  return global.setTimeout(function () {
+    callback(Date.now());
+  }, timeDelay);
+};
+
+// Works around a rare bug in Safari 6 where the first request is never invoked.
+requestAnimationFrame(emptyFunction);
+
+module.exports = requestAnimationFrame;
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