From de98e0b232509d5f40c135d540a70e415272ff85 Mon Sep 17 00:00:00 2001
From: Florian Dold <florian.dold@gmail.com>
Date: Wed, 3 May 2017 15:35:00 +0200
Subject: node_modules

---
 node_modules/react-dom/lib/ReactInputSelection.js | 123 ++++++++++++++++++++++
 1 file changed, 123 insertions(+)
 create mode 100644 node_modules/react-dom/lib/ReactInputSelection.js

(limited to 'node_modules/react-dom/lib/ReactInputSelection.js')

diff --git a/node_modules/react-dom/lib/ReactInputSelection.js b/node_modules/react-dom/lib/ReactInputSelection.js
new file mode 100644
index 000000000..91308646f
--- /dev/null
+++ b/node_modules/react-dom/lib/ReactInputSelection.js
@@ -0,0 +1,123 @@
+/**
+ * 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 ReactDOMSelection = require('./ReactDOMSelection');
+
+var containsNode = require('fbjs/lib/containsNode');
+var focusNode = require('fbjs/lib/focusNode');
+var getActiveElement = require('fbjs/lib/getActiveElement');
+
+function isInDocument(node) {
+  return containsNode(document.documentElement, node);
+}
+
+/**
+ * @ReactInputSelection: React input selection module. Based on Selection.js,
+ * but modified to be suitable for react and has a couple of bug fixes (doesn't
+ * assume buttons have range selections allowed).
+ * Input selection module for React.
+ */
+var ReactInputSelection = {
+
+  hasSelectionCapabilities: function (elem) {
+    var nodeName = elem && elem.nodeName && elem.nodeName.toLowerCase();
+    return nodeName && (nodeName === 'input' && elem.type === 'text' || nodeName === 'textarea' || elem.contentEditable === 'true');
+  },
+
+  getSelectionInformation: function () {
+    var focusedElem = getActiveElement();
+    return {
+      focusedElem: focusedElem,
+      selectionRange: ReactInputSelection.hasSelectionCapabilities(focusedElem) ? ReactInputSelection.getSelection(focusedElem) : null
+    };
+  },
+
+  /**
+   * @restoreSelection: If any selection information was potentially lost,
+   * restore it. This is useful when performing operations that could remove dom
+   * nodes and place them back in, resulting in focus being lost.
+   */
+  restoreSelection: function (priorSelectionInformation) {
+    var curFocusedElem = getActiveElement();
+    var priorFocusedElem = priorSelectionInformation.focusedElem;
+    var priorSelectionRange = priorSelectionInformation.selectionRange;
+    if (curFocusedElem !== priorFocusedElem && isInDocument(priorFocusedElem)) {
+      if (ReactInputSelection.hasSelectionCapabilities(priorFocusedElem)) {
+        ReactInputSelection.setSelection(priorFocusedElem, priorSelectionRange);
+      }
+      focusNode(priorFocusedElem);
+    }
+  },
+
+  /**
+   * @getSelection: Gets the selection bounds of a focused textarea, input or
+   * contentEditable node.
+   * -@input: Look up selection bounds of this input
+   * -@return {start: selectionStart, end: selectionEnd}
+   */
+  getSelection: function (input) {
+    var selection;
+
+    if ('selectionStart' in input) {
+      // Modern browser with input or textarea.
+      selection = {
+        start: input.selectionStart,
+        end: input.selectionEnd
+      };
+    } else if (document.selection && input.nodeName && input.nodeName.toLowerCase() === 'input') {
+      // IE8 input.
+      var range = document.selection.createRange();
+      // There can only be one selection per document in IE, so it must
+      // be in our element.
+      if (range.parentElement() === input) {
+        selection = {
+          start: -range.moveStart('character', -input.value.length),
+          end: -range.moveEnd('character', -input.value.length)
+        };
+      }
+    } else {
+      // Content editable or old IE textarea.
+      selection = ReactDOMSelection.getOffsets(input);
+    }
+
+    return selection || { start: 0, end: 0 };
+  },
+
+  /**
+   * @setSelection: Sets the selection bounds of a textarea or input and focuses
+   * the input.
+   * -@input     Set selection bounds of this input or textarea
+   * -@offsets   Object of same form that is returned from get*
+   */
+  setSelection: function (input, offsets) {
+    var start = offsets.start;
+    var end = offsets.end;
+    if (end === undefined) {
+      end = start;
+    }
+
+    if ('selectionStart' in input) {
+      input.selectionStart = start;
+      input.selectionEnd = Math.min(end, input.value.length);
+    } else if (document.selection && input.nodeName && input.nodeName.toLowerCase() === 'input') {
+      var range = input.createTextRange();
+      range.collapse(true);
+      range.moveStart('character', start);
+      range.moveEnd('character', end - start);
+      range.select();
+    } else {
+      ReactDOMSelection.setOffsets(input, offsets);
+    }
+  }
+};
+
+module.exports = ReactInputSelection;
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