@atlaskit/editor-core
Version:
A package contains Atlassian editor core functionality
56 lines • 2.72 kB
JavaScript
export var AC_XMLNS = 'http://example.com/ac';
export var RI_XMLNS = 'http://example.com/ri';
export var FAB_XMLNS = 'http://example.com/fab';
export var XHTML_XMLNS = 'http://www.w3.org/1999/xhtml';
export default function (node) {
// The naive approach here is to simply call .outerHTML on a node, however this has an undesirable
// behaviour of including the xmlns:* attributes on the node. Confluence Storage Format expects that
// these are *not* included.
//
// To avoid including these, we fall back to hacky plain text slicing. The strategy is to included
// some wrapper elements that will contain the xmlns:* attributes. A document will be structured as:
//
// <wrapper xmlns="http://www.w3.org/1999/xhtml">
// <fab:wrapper xmlns="http://example.com/fab">
// <ac:wrapper xmlns="http://example.com/ac">
// <ri:wrapper xmlns="http://example.com/ri">
// …
// </ri:wrapper>
// </ac:wrapper>
// </fab:wrapper>
// </wrapper>
//
// Before content is added, `.outerHTML` of the `ac:wrapper` is used to determine the number of
// leading/trailing bytes need to be trimmed in the final result (to remove the wrappers).
//
// WARNING: This method will move `element` into a new parent element, but will put it back
// before returning.
var doc = node.ownerDocument;
var marker = doc.createElement('marker');
if (node.parentNode) {
node.parentNode.replaceChild(marker, node);
}
var wrapper = doc.createElementNS(XHTML_XMLNS, 'wrapper');
var acWrapper = doc.createElementNS(AC_XMLNS, 'ac:wrapper');
var riWrapper = doc.createElementNS(RI_XMLNS, 'ri:wrapper');
var fabWrapper = doc.createElementNS(FAB_XMLNS, 'fab:wrapper');
wrapper.appendChild(fabWrapper);
fabWrapper.appendChild(acWrapper);
acWrapper.appendChild(riWrapper);
// Force avoid self-closing tags, as these would invalidate suffix/prefix length calculations.
var wedge = '|';
var wedgeText = doc.createTextNode(wedge);
riWrapper.appendChild(wedgeText);
var template = wrapper.outerHTML;
var prefixLength = template.indexOf(wedge);
var suffixLength = template.length - prefixLength - wedge.length;
riWrapper.removeChild(wedgeText);
riWrapper.appendChild(node);
var wrappedResult = wrapper.outerHTML;
var result = wrappedResult.slice(prefixLength, wrappedResult.length - suffixLength);
if (marker.parentNode) {
marker.parentNode.replaceChild(node, marker);
}
return result.replace(/\s\/>/g, '/>'); // Remove unnecessary white-space added by IE
}
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