], 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) {
+var getElementForElementRootNode = function(node) {
+ return node.getData('canvasElement');
+};
+
+var getElementForNode = function(node) {
+ while(!node.getData('canvasElement')) {
+ node = node.parent();
+ }
+ return node.getData('canvasElement');
+};
+
+var getElementForDetachedNode = function(node, originalParent) {
+ var ptr = originalParent;
+ if(ptr === null) {
return node.getData('canvasElement');
}
- if(node.nodeType === Node.TEXT_NODE) {
- return findCanvasElementInParent(node, node.parent());
+ while(!ptr.getData('canvasElement')) {
+ ptr = ptr.parent();
}
+ return ptr.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 = findCanvasElement(wlxmlParentNode),
- toret;
- parentElement.children().forEach(function(child) {
- if(child.data('wlxmlNode').sameNode(wlxmlChildNode)) {
- toret = child;
- }
- });
- return toret;
+var caretPositionFromPoint = function(x, y) {
+ /* globals document */
+ var range, textNode, offset;
+ if(document.caretPositionFromPoint) {
+ range = document.caretPositionFromPoint(x, y);
+ textNode = range.offsetNode;
+ offset = range.offset;
+ } else if(document.caretRangeFromPoint) {
+ range = document.caretRangeFromPoint(x, y);
+ textNode = range.startContainer;
+ offset = range.startOffset;
+ }
+ return {
+ textNode: textNode,
+ offset: offset
+ };
};
+
return {
nearestInDocumentOrder: nearestInDocumentOrder,
- findCanvasElement: findCanvasElement,
- findCanvasElementInParent: findCanvasElementInParent,
unicode: {
ZWS: '\u200B'
- }
+ },
+ getElementForNode: getElementForNode,
+ getElementForDetachedNode: getElementForDetachedNode,
+ getElementForElementRootNode: getElementForElementRootNode,
+ caretPositionFromPoint: caretPositionFromPoint
};
});