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authorFlorian Dold <florian.dold@gmail.com>2017-05-03 15:35:00 +0200
committerFlorian Dold <florian.dold@gmail.com>2017-05-03 15:35:00 +0200
commitde98e0b232509d5f40c135d540a70e415272ff85 (patch)
treea79222a5b58484ab3b80d18efcaaa7ccc4769b33 /node_modules/fbjs/lib/createNodesFromMarkup.js
parente0c9d480a73fa629c1e4a47d3e721f1d2d345406 (diff)
node_modules
Diffstat (limited to 'node_modules/fbjs/lib/createNodesFromMarkup.js')
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diff --git a/node_modules/fbjs/lib/createNodesFromMarkup.js b/node_modules/fbjs/lib/createNodesFromMarkup.js
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+'use strict';
+
+/**
+ * Copyright (c) 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.
+ *
+ * @typechecks
+ */
+
+/*eslint-disable fb-www/unsafe-html*/
+
+var ExecutionEnvironment = require('./ExecutionEnvironment');
+
+var createArrayFromMixed = require('./createArrayFromMixed');
+var getMarkupWrap = require('./getMarkupWrap');
+var invariant = require('./invariant');
+
+/**
+ * Dummy container used to render all markup.
+ */
+var dummyNode = ExecutionEnvironment.canUseDOM ? document.createElement('div') : null;
+
+/**
+ * Pattern used by `getNodeName`.
+ */
+var nodeNamePattern = /^\s*<(\w+)/;
+
+/**
+ * Extracts the `nodeName` of the first element in a string of markup.
+ *
+ * @param {string} markup String of markup.
+ * @return {?string} Node name of the supplied markup.
+ */
+function getNodeName(markup) {
+ var nodeNameMatch = markup.match(nodeNamePattern);
+ return nodeNameMatch && nodeNameMatch[1].toLowerCase();
+}
+
+/**
+ * Creates an array containing the nodes rendered from the supplied markup. The
+ * optionally supplied `handleScript` function will be invoked once for each
+ * <script> element that is rendered. If no `handleScript` function is supplied,
+ * an exception is thrown if any <script> elements are rendered.
+ *
+ * @param {string} markup A string of valid HTML markup.
+ * @param {?function} handleScript Invoked once for each rendered <script>.
+ * @return {array<DOMElement|DOMTextNode>} An array of rendered nodes.
+ */
+function createNodesFromMarkup(markup, handleScript) {
+ var node = dummyNode;
+ !!!dummyNode ? process.env.NODE_ENV !== 'production' ? invariant(false, 'createNodesFromMarkup dummy not initialized') : invariant(false) : void 0;
+ var nodeName = getNodeName(markup);
+
+ var wrap = nodeName && getMarkupWrap(nodeName);
+ if (wrap) {
+ node.innerHTML = wrap[1] + markup + wrap[2];
+
+ var wrapDepth = wrap[0];
+ while (wrapDepth--) {
+ node = node.lastChild;
+ }
+ } else {
+ node.innerHTML = markup;
+ }
+
+ var scripts = node.getElementsByTagName('script');
+ if (scripts.length) {
+ !handleScript ? process.env.NODE_ENV !== 'production' ? invariant(false, 'createNodesFromMarkup(...): Unexpected <script> element rendered.') : invariant(false) : void 0;
+ createArrayFromMixed(scripts).forEach(handleScript);
+ }
+
+ var nodes = Array.from(node.childNodes);
+ while (node.lastChild) {
+ node.removeChild(node.lastChild);
+ }
+ return nodes;
+}
+
+module.exports = createNodesFromMarkup; \ No newline at end of file