], function($) {
'use strict';
-
+/* globals Node */
var nearestInDocumentOrder = function(selector, direction, element) {
var parents = $(element).parents(),
parent = parents.length ? $(parents[parents.length-1]) : element;
var adj = parent.find(selector).filter(function() {
+ /*jshint bitwise: false*/
return this.compareDocumentPosition(element) & (direction === 'above' ? Node.DOCUMENT_POSITION_FOLLOWING : Node.DOCUMENT_POSITION_PRECEDING);
});
return adj[direction === 'above' ? adj.length-1 : 0];
}
return null;
-}
+};
var findCanvasElement = function(node) {
if(node.nodeType === Node.ELEMENT_NODE) {
return node.getData('canvasElement');
}
if(node.nodeType === Node.TEXT_NODE) {
- var parent = node.parent(),
- toret;
+ return findCanvasElementInParent(node, node.parent());
+ }
+};
+
+/**
+ * We take child and its parent as arguments separatly to
+ * handle situation where child was removed from WLXMLDocument
+ * and it lost reference to its parent (but we may still have it on canvas).
+*/
+var findCanvasElementInParent = function(wlxmlChildNode, wlxmlParentNode) {
+ var parentElement, toret;
- parent.children().forEach(function(child) {
- if(child.data('wlxmlNode').sameNode(node))
+ if(wlxmlParentNode === null) {
+ toret = wlxmlChildNode.getData('canvasElement');
+ if(toret.parent()) {
+ throw new Error('This should never happen: root canvas element doesn\'t render root document node!');
+ }
+ } else {
+ parentElement = findCanvasElement(wlxmlParentNode);
+ parentElement.children().forEach(function(child) {
+ if(child.data('wlxmlNode').sameNode(wlxmlChildNode)) { // czemu tu, przy drugim undo child nie mial data?
toret = child;
+ }
});
- if(toret)
- return toret;
}
+ return toret;
};
return {
nearestInDocumentOrder: nearestInDocumentOrder,
findCanvasElement: findCanvasElement,
+ findCanvasElementInParent: findCanvasElementInParent,
unicode: {
ZWS: '\u200B'
}