node_modules

1 files changed, 72 insertions, 0 deletions

diff --git a/node_modules/react/lib/ReactTransitionEvents.js b/node_modules/react/lib/ReactTransitionEvents.js
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index 000000000..ca4b7e716
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+++ b/node_modules/react/lib/ReactTransitionEvents.js
@@ -0,0 +1,72 @@
+/**
+ * Copyright 2013-present, 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.
+ *
+ */
+
+'use strict';
+
+var ExecutionEnvironment = require('fbjs/lib/ExecutionEnvironment');
+
+var getVendorPrefixedEventName = require('react-dom/lib/getVendorPrefixedEventName');
+
+var endEvents = [];
+
+function detectEvents() {
+  var animEnd = getVendorPrefixedEventName('animationend');
+  var transEnd = getVendorPrefixedEventName('transitionend');
+
+  if (animEnd) {
+    endEvents.push(animEnd);
+  }
+
+  if (transEnd) {
+    endEvents.push(transEnd);
+  }
+}
+
+if (ExecutionEnvironment.canUseDOM) {
+  detectEvents();
+}
+
+// We use the raw {add|remove}EventListener() call because EventListener
+// does not know how to remove event listeners and we really should
+// clean up. Also, these events are not triggered in older browsers
+// so we should be A-OK here.
+
+function addEventListener(node, eventName, eventListener) {
+  node.addEventListener(eventName, eventListener, false);
+}
+
+function removeEventListener(node, eventName, eventListener) {
+  node.removeEventListener(eventName, eventListener, false);
+}
+
+var ReactTransitionEvents = {
+  addEndEventListener: function (node, eventListener) {
+    if (endEvents.length === 0) {
+      // If CSS transitions are not supported, trigger an "end animation"
+      // event immediately.
+      window.setTimeout(eventListener, 0);
+      return;
+    }
+    endEvents.forEach(function (endEvent) {
+      addEventListener(node, endEvent, eventListener);
+    });
+  },
+
+  removeEndEventListener: function (node, eventListener) {
+    if (endEvents.length === 0) {
+      return;
+    }
+    endEvents.forEach(function (endEvent) {
+      removeEventListener(node, endEvent, eventListener);
+    });
+  }
+};
+
+module.exports = ReactTransitionEvents;
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