move files to adequate folders and fix imports

src/svgcanvas/copy-elem.js

@@ -0,0 +1,61 @@
+/* globals jQuery */
+
+import jQueryPluginSVG from '../common/jQuery.attr.js'; // Needed for SVG attribute setting and array form with `attr`
+import {isWebkit} from '../common/browser.js';
+import {convertPath} from './path.js';
+import {preventClickDefault} from '../common/utilities.js';
+
+// Constants
+const $ = jQueryPluginSVG(jQuery);
+
+/**
+ * Create a clone of an element, updating its ID and its children's IDs when needed.
+ * @function module:utilities.copyElem
+ * @param {Element} el - DOM element to clone
+ * @param {module:utilities.GetNextID} getNextId - The getter of the next unique ID.
+ * @returns {Element} The cloned element
+ */
+export const copyElem = function (el, getNextId) {
+  // manually create a copy of the element
+  const newEl = document.createElementNS(el.namespaceURI, el.nodeName);
+  $.each(el.attributes, function (i, attr) {
+    if (attr.localName !== '-moz-math-font-style') {
+      newEl.setAttributeNS(attr.namespaceURI, attr.nodeName, attr.value);
+    }
+  });
+  // set the copied element's new id
+  newEl.removeAttribute('id');
+  newEl.id = getNextId();
+
+  // Opera's "d" value needs to be reset for Opera/Win/non-EN
+  // Also needed for webkit (else does not keep curved segments on clone)
+  if (isWebkit() && el.nodeName === 'path') {
+    const fixedD = convertPath(el);
+    newEl.setAttribute('d', fixedD);
+  }
+
+  // now create copies of all children
+  $.each(el.childNodes, function (i, child) {
+    switch (child.nodeType) {
+    case 1: // element node
+      newEl.append(copyElem(child, getNextId));
+      break;
+    case 3: // text node
+      newEl.textContent = child.nodeValue;
+      break;
+    default:
+      break;
+    }
+  });
+
+  if ($(el).data('gsvg')) {
+    $(newEl).data('gsvg', newEl.firstChild);
+  } else if ($(el).data('symbol')) {
+    const ref = $(el).data('symbol');
+    $(newEl).data('ref', ref).data('symbol', ref);
+  } else if (newEl.tagName === 'image') {
+    preventClickDefault(newEl);
+  }
+
+  return newEl;
+};