aboutsummaryrefslogtreecommitdiff
path: root/node_modules/react-dom/lib/ReactRef.js
diff options
context:
space:
mode:
Diffstat (limited to 'node_modules/react-dom/lib/ReactRef.js')
-rw-r--r--node_modules/react-dom/lib/ReactRef.js88
1 files changed, 0 insertions, 88 deletions
diff --git a/node_modules/react-dom/lib/ReactRef.js b/node_modules/react-dom/lib/ReactRef.js
deleted file mode 100644
index 055e632c7..000000000
--- a/node_modules/react-dom/lib/ReactRef.js
+++ /dev/null
@@ -1,88 +0,0 @@
-/**
- * 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 ReactOwner = require('./ReactOwner');
-
-var ReactRef = {};
-
-function attachRef(ref, component, owner) {
- if (typeof ref === 'function') {
- ref(component.getPublicInstance());
- } else {
- // Legacy ref
- ReactOwner.addComponentAsRefTo(component, ref, owner);
- }
-}
-
-function detachRef(ref, component, owner) {
- if (typeof ref === 'function') {
- ref(null);
- } else {
- // Legacy ref
- ReactOwner.removeComponentAsRefFrom(component, ref, owner);
- }
-}
-
-ReactRef.attachRefs = function (instance, element) {
- if (element === null || typeof element !== 'object') {
- return;
- }
- var ref = element.ref;
- if (ref != null) {
- attachRef(ref, instance, element._owner);
- }
-};
-
-ReactRef.shouldUpdateRefs = function (prevElement, nextElement) {
- // If either the owner or a `ref` has changed, make sure the newest owner
- // has stored a reference to `this`, and the previous owner (if different)
- // has forgotten the reference to `this`. We use the element instead
- // of the public this.props because the post processing cannot determine
- // a ref. The ref conceptually lives on the element.
-
- // TODO: Should this even be possible? The owner cannot change because
- // it's forbidden by shouldUpdateReactComponent. The ref can change
- // if you swap the keys of but not the refs. Reconsider where this check
- // is made. It probably belongs where the key checking and
- // instantiateReactComponent is done.
-
- var prevRef = null;
- var prevOwner = null;
- if (prevElement !== null && typeof prevElement === 'object') {
- prevRef = prevElement.ref;
- prevOwner = prevElement._owner;
- }
-
- var nextRef = null;
- var nextOwner = null;
- if (nextElement !== null && typeof nextElement === 'object') {
- nextRef = nextElement.ref;
- nextOwner = nextElement._owner;
- }
-
- return prevRef !== nextRef ||
- // If owner changes but we have an unchanged function ref, don't update refs
- typeof nextRef === 'string' && nextOwner !== prevOwner;
-};
-
-ReactRef.detachRefs = function (instance, element) {
- if (element === null || typeof element !== 'object') {
- return;
- }
- var ref = element.ref;
- if (ref != null) {
- detachRef(ref, instance, element._owner);
- }
-};
-
-module.exports = ReactRef; \ No newline at end of file