1 files changed, 113 insertions, 0 deletions
diff --git a/node_modules/morphdom/src/util.js b/node_modules/morphdom/src/util.js
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+++ b/node_modules/morphdom/src/util.js
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+var range; // Create a range object for efficently rendering strings to elements.
+var NS_XHTML = 'http://www.w3.org/1999/xhtml';
+
+export var doc = typeof document === 'undefined' ? undefined : document;
+var HAS_TEMPLATE_SUPPORT = !!doc && 'content' in doc.createElement('template');
+var HAS_RANGE_SUPPORT = !!doc && doc.createRange && 'createContextualFragment' in doc.createRange();
+
+function createFragmentFromTemplate(str) {
+    var template = doc.createElement('template');
+    template.innerHTML = str;
+    return template.content.childNodes[0];
+}
+
+function createFragmentFromRange(str) {
+    if (!range) {
+        range = doc.createRange();
+        range.selectNode(doc.body);
+    }
+
+    var fragment = range.createContextualFragment(str);
+    return fragment.childNodes[0];
+}
+
+function createFragmentFromWrap(str) {
+    var fragment = doc.createElement('body');
+    fragment.innerHTML = str;
+    return fragment.childNodes[0];
+}
+
+/**
+ * This is about the same
+ * var html = new DOMParser().parseFromString(str, 'text/html');
+ * return html.body.firstChild;
+ *
+ * @method toElement
+ * @param {String} str
+ */
+export function toElement(str) {
+    str = str.trim();
+    if (HAS_TEMPLATE_SUPPORT) {
+      // avoid restrictions on content for things like `<tr><th>Hi</th></tr>` which
+      // createContextualFragment doesn't support
+      // <template> support not available in IE
+      return createFragmentFromTemplate(str);
+    } else if (HAS_RANGE_SUPPORT) {
+      return createFragmentFromRange(str);
+    }
+
+    return createFragmentFromWrap(str);
+}
+
+/**
+ * Returns true if two node's names are the same.
+ *
+ * NOTE: We don't bother checking `namespaceURI` because you will never find two HTML elements with the same
+ *       nodeName and different namespace URIs.
+ *
+ * @param {Element} a
+ * @param {Element} b The target element
+ * @return {boolean}
+ */
+export function compareNodeNames(fromEl, toEl) {
+    var fromNodeName = fromEl.nodeName;
+    var toNodeName = toEl.nodeName;
+    var fromCodeStart, toCodeStart;
+
+    if (fromNodeName === toNodeName) {
+        return true;
+    }
+
+    fromCodeStart = fromNodeName.charCodeAt(0);
+    toCodeStart = toNodeName.charCodeAt(0);
+
+    // If the target element is a virtual DOM node or SVG node then we may
+    // need to normalize the tag name before comparing. Normal HTML elements that are
+    // in the "http://www.w3.org/1999/xhtml"
+    // are converted to upper case
+    if (fromCodeStart <= 90 && toCodeStart >= 97) { // from is upper and to is lower
+        return fromNodeName === toNodeName.toUpperCase();
+    } else if (toCodeStart <= 90 && fromCodeStart >= 97) { // to is upper and from is lower
+        return toNodeName === fromNodeName.toUpperCase();
+    } else {
+        return false;
+    }
+}
+
+/**
+ * Create an element, optionally with a known namespace URI.
+ *
+ * @param {string} name the element name, e.g. 'div' or 'svg'
+ * @param {string} [namespaceURI] the element's namespace URI, i.e. the value of
+ * its `xmlns` attribute or its inferred namespace.
+ *
+ * @return {Element}
+ */
+export function createElementNS(name, namespaceURI) {
+    return !namespaceURI || namespaceURI === NS_XHTML ?
+        doc.createElement(name) :
+        doc.createElementNS(namespaceURI, name);
+}
+
+/**
+ * Copies the children of one DOM element to another DOM element
+ */
+export function moveChildren(fromEl, toEl) {
+    var curChild = fromEl.firstChild;
+    while (curChild) {
+        var nextChild = curChild.nextSibling;
+        toEl.appendChild(curChild);
+        curChild = nextChild;
+    }
+    return toEl;
+}