WIP - add extractor, generate snippet_data

node_modules/fbjs/lib/translateDOMPositionXY.js

@@ -0,0 +1,62 @@
+/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @typechecks
+ */
+'use strict';
+
+var BrowserSupportCore = require("./BrowserSupportCore");
+
+var getVendorPrefixedName = require("./getVendorPrefixedName");
+
+var TRANSFORM = getVendorPrefixedName('transform');
+var BACKFACE_VISIBILITY = getVendorPrefixedName('backfaceVisibility');
+
+var translateDOMPositionXY = function () {
+  if (BrowserSupportCore.hasCSSTransforms()) {
+    var ua = global.window ? global.window.navigator.userAgent : 'UNKNOWN';
+    var isSafari = /Safari\//.test(ua) && !/Chrome\//.test(ua); // It appears that Safari messes up the composition order
+    // of GPU-accelerated layers
+    // (see bug https://bugs.webkit.org/show_bug.cgi?id=61824).
+    // Use 2D translation instead.
+
+    if (!isSafari && BrowserSupportCore.hasCSS3DTransforms()) {
+      return function (
+      /*object*/
+      style,
+      /*number*/
+      x,
+      /*number*/
+      y) {
+        style[TRANSFORM] = 'translate3d(' + x + 'px,' + y + 'px,0)';
+        style[BACKFACE_VISIBILITY] = 'hidden';
+      };
+    } else {
+      return function (
+      /*object*/
+      style,
+      /*number*/
+      x,
+      /*number*/
+      y) {
+        style[TRANSFORM] = 'translate(' + x + 'px,' + y + 'px)';
+      };
+    }
+  } else {
+    return function (
+    /*object*/
+    style,
+    /*number*/
+    x,
+    /*number*/
+    y) {
+      style.left = x + 'px';
+      style.top = y + 'px';
+    };
+  }
+}();
+
+module.exports = translateDOMPositionXY;