], function($) {
'use strict';
-
+/* globals Node */
var nearestInDocumentOrder = function(selector, direction, element) {
var parents = $(element).parents(),
return null;
};
-var findCanvasElement = function(node) {
- if(node.nodeType === Node.ELEMENT_NODE) {
- return node.getData('canvasElement');
- }
+var getElementForElementRootNode = function(node, withParent) {
if(node.nodeType === Node.TEXT_NODE) {
- return findCanvasElementInParent(node, node.parent());
+ return _getElementForRootTextNode(node, withParent);
}
+ return node.getData('canvasElement');
};
-/**
- * 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;
+var _getElementForRootTextNode = function(textNode, withParent) {
+ var parentElement = getElementForNode(withParent || textNode.parent()),
+ toret;
+ parentElement.children().some(function(child) {
+ if(child.wlxmlNode.sameNode(textNode)) {
+ toret = child;
+ return true;
+ }
+ });
+ return toret;
+};
- 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!');
+var getElementForNode = function(node, withParent) {
+ if(node.nodeType === Node.TEXT_NODE) {
+ return _getElementForTextNode(node, withParent);
+ }
+ while(!node.getData('canvasElement')) {
+ node = node.parent();
+ }
+ return node.getData('canvasElement');
+};
+
+var _getElementForTextNode = function(textNode, withParent) {
+ var parentElement = getElementForNode(withParent || textNode.parent()),
+ toret;
+ parentElement.children().some(function(child) {
+ if(child.wlxmlNode.sameNode(textNode)) {
+ toret = child;
+ return true;
}
- } else {
- parentElement = findCanvasElement(wlxmlParentNode);
- parentElement.children().forEach(function(child) {
- if(child.data('wlxmlNode').sameNode(wlxmlChildNode)) {
- toret = child;
- }
- });
+ });
+ return toret || parentElement;
+};
+
+var getElementForDetachedNode = function(node, originalParent) {
+ var ptr = originalParent;
+ if(ptr === null) {
+ return node.getData('canvasElement');
}
- return toret;
+ while(!ptr.getData('canvasElement')) {
+ ptr = ptr.parent();
+ }
+ return ptr.getData('canvasElement');
};
+
+
return {
nearestInDocumentOrder: nearestInDocumentOrder,
- findCanvasElement: findCanvasElement,
- findCanvasElementInParent: findCanvasElementInParent,
unicode: {
ZWS: '\u200B'
- }
+ },
+ getElementForNode: getElementForNode,
+ getElementForDetachedNode: getElementForDetachedNode,
+ getElementForElementRootNode: getElementForElementRootNode
};
});