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✏️ Editing: editor-selection.js

YUI.add('editor-selection', function (Y, NAME) {

/**
     * Wraps some common Selection/Range functionality into a simple object
     * @class EditorSelection
     * @constructor
     * @module editor
     * @submodule selection
     */

//TODO This shouldn't be there, Y.Node doesn't normalize getting textnode content.
    var textContent = 'textContent',
    INNER_HTML = 'innerHTML',
    FONT_FAMILY = 'fontFamily';

if (Y.UA.ie && Y.UA.ie < 11) {
 textContent = 'nodeValue';
 }

Y.EditorSelection = function(domEvent) {
        var sel, par, ieNode, nodes, rng, i,
            comp, moved = 0, n, id, root = Y.EditorSelection.ROOT;

if (Y.config.win.getSelection && (!Y.UA.ie || Y.UA.ie < 9 || Y.UA.ie > 10)) {
 sel = Y.config.win.getSelection();
 } else if (Y.config.doc.selection) {
 sel = Y.config.doc.selection.createRange();
 }
 this._selection = sel;

if (!sel) {
            return false;
        }

if (sel.pasteHTML) {
            this.isCollapsed = (sel.compareEndPoints('StartToEnd', sel)) ? false : true;
            if (this.isCollapsed) {
                this.anchorNode = this.focusNode = Y.one(sel.parentElement());

if (domEvent) {
                    ieNode = Y.config.doc.elementFromPoint(domEvent.clientX, domEvent.clientY);
                }
                rng = sel.duplicate();
                if (!ieNode) {
                    par = sel.parentElement();
                    nodes = par.childNodes;

for (i = 0; i < nodes.length; i++) {
 //This causes IE to not allow a selection on a doubleclick
 //rng.select(nodes[i]);
 if (rng.inRange(sel)) {
 if (!ieNode) {
 ieNode = nodes[i];
 }
 }
 }
 }

this.ieNode = ieNode;

if (ieNode) {
                    if (ieNode.nodeType !== 3) {
                        if (ieNode.firstChild) {
                            ieNode = ieNode.firstChild;
                        }
                        if (root.compareTo(ieNode)) {
                            if (ieNode.firstChild) {
                                ieNode = ieNode.firstChild;
                            }
                        }
                    }
                    this.anchorNode = this.focusNode = Y.EditorSelection.resolve(ieNode);

rng.moveToElementText(sel.parentElement());
                    comp = sel.compareEndPoints('StartToStart', rng);
                    if (comp) {
                        //We are not at the beginning of the selection.
                        //Setting the move to something large, may need to increase it later
                        moved = this.getEditorOffset(root);
                        sel.move('character', -(moved));
                    }

this.anchorOffset = this.focusOffset = moved;

this.anchorTextNode = this.focusTextNode = Y.one(ieNode);
                }

} else {
                //This helps IE deal with a selection and nodeChange events
                if (sel.htmlText && sel.htmlText !== '') {
                    n = Y.Node.create(sel.htmlText);
                    if (n && n.get('id')) {
                        id = n.get('id');
                        this.anchorNode = this.focusNode = Y.one('#' + id);
                    } else if (n) {
                        n = n.get('childNodes');
                        this.anchorNode = this.focusNode = n.item(0);
                    }
                }
            }

//var self = this;
            //debugger;
        } else {
            this.isCollapsed = sel.isCollapsed;
            this.anchorNode = Y.EditorSelection.resolve(sel.anchorNode);
            this.focusNode = Y.EditorSelection.resolve(sel.focusNode);
            this.anchorOffset = sel.anchorOffset;
            this.focusOffset = sel.focusOffset;

this.anchorTextNode = Y.one(sel.anchorNode || this.anchorNode);
            this.focusTextNode = Y.one(sel.focusNode || this.focusNode);
        }
        if (Y.Lang.isString(sel.text)) {
            this.text = sel.text;
        } else {
            if (sel.toString) {
                this.text = sel.toString();
            } else {
                this.text = '';
            }
        }
    };

/**
    * Utility method to remove dead font-family styles from an element.
    * @static
    * @method removeFontFamily
    */
    Y.EditorSelection.removeFontFamily = function(n) {
        n.removeAttribute('face');
        var s = n.getAttribute('style').toLowerCase();
        if (s === '' || (s === 'font-family: ')) {
            n.removeAttribute('style');
        }
        if (s.match(Y.EditorSelection.REG_FONTFAMILY)) {
            s = s.replace(Y.EditorSelection.REG_FONTFAMILY, '');
            n.setAttribute('style', s);
        }
    };

/**
    * Performs a prefilter on all nodes in the editor. Looks for nodes with a style: fontFamily or font face
    * It then creates a dynamic class assigns it and removed the property. This is so that we don't lose
    * the fontFamily when selecting nodes.
    * @static
    * @method filter
    */
    Y.EditorSelection.filter = function(blocks) {

var startTime = (new Date()).getTime(),
            editorSelection = Y.EditorSelection,
            root = editorSelection.ROOT,
            endTime,
            nodes = root.all(editorSelection.ALL),
            baseNodes = root.all('strong,em'),
            doc = Y.config.doc, hrs,
            classNames = {}, cssString = '',
            ls, startTime1 = (new Date()).getTime(),
            endTime1;

nodes.each(function(n) {
            var raw = Y.Node.getDOMNode(n);
            if (raw.style[FONT_FAMILY]) {
                classNames['.' + n._yuid] = raw.style[FONT_FAMILY];
                n.addClass(n._yuid);

editorSelection.removeFontFamily(raw);
            }
        });
        endTime1 = (new Date()).getTime();

root.all('.hr').addClass('yui-skip').addClass('yui-non');

if (Y.UA.ie) {
            hrs = Y.Node.getDOMNode(root).getElementsByTagName('hr');
            Y.each(hrs, function(hr) {
                var el = doc.createElement('div'),
                s = el.style;

el.className = 'hr yui-non yui-skip';

el.setAttribute('readonly', true);
 el.setAttribute('contenteditable', false); //Keep it from being Edited
 if (hr.parentNode) {
 hr.parentNode.replaceChild(el, hr);
 }
 //Had to move to inline style. writes for ie's < 8. They don't render el.setAttribute('style');
 s.border = '1px solid #ccc';
 s.lineHeight = '0';
 s.height = '0';
 s.fontSize = '0';
 s.marginTop = '5px';
 s.marginBottom = '5px';
 s.marginLeft = '0px';
 s.marginRight = '0px';
 s.padding = '0';
 });
 }

Y.each(classNames, function(v, k) {
            cssString += k + ' { font-family: ' + v.replace(/"/gi, '') + '; }';
        });
        Y.StyleSheet(cssString, 'editor');

//Not sure about this one?
        baseNodes.each(function(n, k) {
            var t = n.get('tagName').toLowerCase(),
                newTag = 'i';
            if (t === 'strong') {
                newTag = 'b';
            }
            editorSelection.prototype._swap(baseNodes.item(k), newTag);
        });

//Filter out all the empty UL/OL's
        ls = root.all('ol,ul');
        ls.each(function(v) {
            var lis = v.all('li');
            if (!lis.size()) {
                v.remove();
            }
        });

if (blocks) {
            editorSelection.filterBlocks();
        }
        endTime = (new Date()).getTime();
    };

/**
 * Method attempts to replace all "orphined" text nodes in the main body by wrapping them with a . Called from filter.
 * @static
 * @method filterBlocks
 */
 Y.EditorSelection.filterBlocks = function() {
 var startTime = (new Date()).getTime(), endTime,
 childs = Y.Node.getDOMNode(Y.EditorSelection.ROOT).childNodes, i, node, wrapped = false, doit = true,
 sel, single, br, c, s, html;

if (childs) {
 for (i = 0; i < childs.length; i++) {
 node = Y.one(childs[i]);
 if (!node.test(Y.EditorSelection.BLOCKS)) {
 doit = true;
 if (childs[i].nodeType === 3) {
 c = childs[i][textContent].match(Y.EditorSelection.REG_CHAR);
 s = childs[i][textContent].match(Y.EditorSelection.REG_NON);
 if (c === null && s) {
 doit = false;

}
                    }
                    if (doit) {
                        if (!wrapped) {
                            wrapped = [];
                        }
                        wrapped.push(childs[i]);
                    }
                } else {
                    wrapped = Y.EditorSelection._wrapBlock(wrapped);
                }
            }
            wrapped = Y.EditorSelection._wrapBlock(wrapped);
        }

single = Y.all(Y.EditorSelection.DEFAULT_BLOCK_TAG);
        if (single.size() === 1) {
            br = single.item(0).all('br');
            if (br.size() === 1) {
                if (!br.item(0).test('.yui-cursor')) {
                    br.item(0).remove();
                }
                html = single.item(0).get('innerHTML');
                if (html === '' || html === ' ') {
                    single.set('innerHTML', Y.EditorSelection.CURSOR);
                    sel = new Y.EditorSelection();
                    sel.focusCursor(true, true);
                }
                if (br.item(0).test('.yui-cursor') && Y.UA.ie) {
                    br.item(0).remove();
                }
            }
        } else {
            single.each(function(p) {
                var html = p.get('innerHTML');
                if (html === '') {
                    p.remove();
                }
            });
        }

endTime = (new Date()).getTime();
    };

/**
    * Regular Expression used to find dead font-family styles
    * @static
    * @property REG_FONTFAMILY
    */
    Y.EditorSelection.REG_FONTFAMILY = /font-family:\s*;/;

/**
 * Regular Expression to determine if a string has a character in it
 * @static
 * @property REG_CHAR
 */
 Y.EditorSelection.REG_CHAR = /[a-zA-Z-0-9_!@#\$%\^&*-=_+\[\]\\{}|;':",.\/<>\?]/gi;

/**
    * Regular Expression to determine if a string has a non-character in it
    * @static
    * @property REG_NON
    */
    Y.EditorSelection.REG_NON = /[\s|\n|\t]/gi;

/**
 * Regular Expression to remove all HTML from a string
 * @static
 * @property REG_NOHTML
 */
 Y.EditorSelection.REG_NOHTML = /<\S[^><]*>/g;

/**
 * Wraps an array of elements in a Block level tag
 * @static
 * @private
 * @method _wrapBlock
 */
 Y.EditorSelection._wrapBlock = function(wrapped) {
 if (wrapped) {
 var newChild = Y.Node.create('<' + Y.EditorSelection.DEFAULT_BLOCK_TAG + '></' + Y.EditorSelection.DEFAULT_BLOCK_TAG + '>'),
 firstChild = Y.one(wrapped[0]), i;

for (i = 1; i < wrapped.length; i++) {
 newChild.append(wrapped[i]);
 }
 firstChild.replace(newChild);
 newChild.prepend(firstChild);
 }
 return false;
 };

/**
    * Undoes what filter does enough to return the HTML from the Editor, then re-applies the filter.
    * @static
    * @method unfilter
    * @return {String} The filtered HTML
    */
    Y.EditorSelection.unfilter = function() {
        var root = Y.EditorSelection.ROOT,
            nodes = root.all('[class]'),
            html = '', nons, ids,
            body = root;

nodes.each(function(n) {
            if (n.hasClass(n._yuid)) {
                //One of ours
                n.setStyle(FONT_FAMILY, n.getStyle(FONT_FAMILY));
                n.removeClass(n._yuid);
                if (n.getAttribute('class') === '') {
                    n.removeAttribute('class');
                }
            }
        });

nons = root.all('.yui-non');
        nons.each(function(n) {
            if (!n.hasClass('yui-skip') && n.get('innerHTML') === '') {
                n.remove();
            } else {
                n.removeClass('yui-non').removeClass('yui-skip');
            }
        });

ids = root.all('[id]');
        ids.each(function(n) {
            if (n.get('id').indexOf('yui_3_') === 0) {
                n.removeAttribute('id');
                n.removeAttribute('_yuid');
            }
        });

if (body) {
            html = body.get('innerHTML');
        }

root.all('.hr').addClass('yui-skip').addClass('yui-non');

/*
        nodes.each(function(n) {
            n.addClass(n._yuid);
            n.setStyle(FONT_FAMILY, '');
            if (n.getAttribute('style') === '') {
                n.removeAttribute('style');
            }
        });
        */

return html;
    };
    /**
    * Resolve a node from the selection object and return a Node instance
    * @static
    * @method resolve
    * @param {HTMLElement} n The HTMLElement to resolve. Might be a TextNode, gives parentNode.
    * @return {Node} The Resolved node
    */
    Y.EditorSelection.resolve = function(n) {
        if (!n) {
            return Y.EditorSelection.ROOT;
        }

if (n && n.nodeType === 3) {
            //Adding a try/catch here because in rare occasions IE will
            //Throw a error accessing the parentNode of a stranded text node.
            //In the case of Ctrl+Z (Undo)
            try {
                n = n.parentNode;
            } catch (re) {
                n = Y.EditorSelection.ROOT;
            }
        }
        return Y.one(n);
    };

/**
 * Returns the innerHTML of a node with all HTML tags removed.
 * @static
 * @method getText
 * @param {Node} node The Node instance to remove the HTML from
 * @return {String} The string of text
 */
 Y.EditorSelection.getText = function(node) {
 var txt = node.get('innerHTML').replace(Y.EditorSelection.REG_NOHTML, '');
 //Clean out the cursor subs to see if the Node is empty
 txt = txt.replace(' ', '').replace(' ', '');
 return txt;
 };

//Y.EditorSelection.DEFAULT_BLOCK_TAG = 'div';
    Y.EditorSelection.DEFAULT_BLOCK_TAG = 'p';

/**
    * The selector to use when looking for Nodes to cache the value of: [style],font[face]
    * @static
    * @property ALL
    */
    Y.EditorSelection.ALL = '[style],font[face]';

/**
    * The selector to use when looking for block level items.
    * @static
    * @property BLOCKS
    */
    Y.EditorSelection.BLOCKS = 'p,div,ul,ol,table,style';
    /**
    * The temporary fontname applied to a selection to retrieve their values: yui-tmp
    * @static
    * @property TMP
    */
    Y.EditorSelection.TMP = 'yui-tmp';
    /**
    * The default tag to use when creating elements: span
    * @static
    * @property DEFAULT_TAG
    */
    Y.EditorSelection.DEFAULT_TAG = 'span';

/**
    * The id of the outer cursor wrapper
    * @static
    * @property CURID
    */
    Y.EditorSelection.CURID = 'yui-cursor';

/**
    * The id used to wrap the inner space of the cursor position
    * @static
    * @property CUR_WRAPID
    */
    Y.EditorSelection.CUR_WRAPID = 'yui-cursor-wrapper';

/**
 * The default HTML used to focus the cursor..
 * @static
 * @property CURSOR
 */
 Y.EditorSelection.CURSOR = ' ';

/**
    * The default HTML element from which data will be retrieved. Default: body
    * @static
    * @property ROOT
    */
    Y.EditorSelection.ROOT = Y.one('body');

Y.EditorSelection.hasCursor = function() {
        var cur = Y.all('#' + Y.EditorSelection.CUR_WRAPID);
        return cur.size();
    };

/**
 * Called from Editor keydown to remove the "extra" space before the cursor.
 * @static
 * @method cleanCursor
 */
 Y.EditorSelection.cleanCursor = function() {
 var cur, sel = 'br.yui-cursor';
 cur = Y.all(sel);
 if (cur.size()) {
 cur.each(function(b) {
 var c = b.get('parentNode.parentNode.childNodes'), html;
 if (c.size()) {
 b.remove();
 } else {
 html = Y.EditorSelection.getText(c.item(0));
 if (html !== '') {
 b.remove();
 }
 }
 });
 }
 /*
 var cur = Y.all('#' + Y.EditorSelection.CUR_WRAPID);
 if (cur.size()) {
 cur.each(function(c) {
 var html = c.get('innerHTML');
 if (html == '&nbsp;' || html == ' ') {
 if (c.previous() || c.next()) {
 c.remove();
 }
 }
 });
 }
 */
 };

Y.EditorSelection.prototype = {
 /**
 * Range text value
 * @property text
 * @type String
 */
 text: null,
 /**
 * Flag to show if the range is collapsed or not
 * @property isCollapsed
 * @type Boolean
 */
 isCollapsed: null,
 /**
 * A Node instance of the parentNode of the anchorNode of the range
 * @property anchorNode
 * @type Node
 */
 anchorNode: null,
 /**
 * The offset from the range object
 * @property anchorOffset
 * @type Number
 */
 anchorOffset: null,
 /**
 * A Node instance of the actual textNode of the range.
 * @property anchorTextNode
 * @type Node
 */
 anchorTextNode: null,
 /**
 * A Node instance of the parentNode of the focusNode of the range
 * @property focusNode
 * @type Node
 */
 focusNode: null,
 /**
 * The offset from the range object
 * @property focusOffset
 * @type Number
 */
 focusOffset: null,
 /**
 * A Node instance of the actual textNode of the range.
 * @property focusTextNode
 * @type Node
 */
 focusTextNode: null,
 /**
 * The actual Selection/Range object
 * @property _selection
 * @private
 */
 _selection: null,
 /**
 * Wrap an element, with another element
 * @private
 * @method _wrap
 * @param {HTMLElement} n The node to wrap
 * @param {String} tag The tag to use when creating the new element.
 * @return {HTMLElement} The wrapped node
 */
 _wrap: function(n, tag) {
 var tmp = Y.Node.create('<' + tag + '></' + tag + '>');
 tmp.set(INNER_HTML, n.get(INNER_HTML));
 n.set(INNER_HTML, '');
 n.append(tmp);
 return Y.Node.getDOMNode(tmp);
 },
 /**
 * Swap an element, with another element
 * @private
 * @method _swap
 * @param {HTMLElement} n The node to swap
 * @param {String} tag The tag to use when creating the new element.
 * @return {HTMLElement} The new node
 */
 _swap: function(n, tag) {
 var tmp = Y.Node.create('<' + tag + '></' + tag + '>');
 tmp.set(INNER_HTML, n.get(INNER_HTML));
 n.replace(tmp, n);
 return Y.Node.getDOMNode(tmp);
 },
 /**
 * Get all the nodes in the current selection. This method will actually perform a filter first.
 * Then it calls doc.execCommand('fontname', null, 'yui-tmp') to touch all nodes in the selection.
 * The it compiles a list of all nodes affected by the execCommand and builds a NodeList to return.
 * @method getSelected
 * @return {NodeList} A NodeList of all items in the selection.
 */
 getSelected: function() {
 var editorSelection = Y.EditorSelection,
 root = editorSelection.ROOT,
 nodes,
 items = [];

editorSelection.filter();
            Y.config.doc.execCommand('fontname', null, editorSelection.TMP);
            nodes = root.all(editorSelection.ALL);

nodes.each(function(n, k) {
 if (n.getStyle(FONT_FAMILY) === editorSelection.TMP) {
 n.setStyle(FONT_FAMILY, '');
 editorSelection.removeFontFamily(n);
 if (!n.compareTo(root)) {
 items.push(Y.Node.getDOMNode(nodes.item(k)));
 }
 }
 });
 return Y.all(items);
 },
 /**
 * Insert HTML at the current cursor position and return a Node instance of the newly inserted element.
 * @method insertContent
 * @param {String} html The HTML to insert.
 * @return {Node} The inserted Node.
 */
 insertContent: function(html) {
 return this.insertAtCursor(html, this.anchorTextNode, this.anchorOffset, true);
 },
 /**
 * Insert HTML at the current cursor position, this method gives you control over the text node to insert into and the offset where to put it.
 * @method insertAtCursor
 * @param {String} html The HTML to insert.
 * @param {Node} node The text node to break when inserting.
 * @param {Number} offset The left offset of the text node to break and insert the new content.
 * @param {Boolean} collapse Should the range be collapsed after insertion. default: false
 * @return {Node} The inserted Node.
 */
 insertAtCursor: function(html, node, offset, collapse) {
 var cur = Y.Node.create('<' + Y.EditorSelection.DEFAULT_TAG + ' class="yui-non"></' + Y.EditorSelection.DEFAULT_TAG + '>'),
 inHTML, txt, txt2, newNode, range = this.createRange(), b, root = Y.EditorSelection.ROOT;

if (root.compareTo(node)) {
 b = Y.Node.create('');
 node.append(b);
 node = b;
 }

if (range.pasteHTML) {
 if (offset === 0 && node && !node.previous() && node.get('nodeType') === 3) {
 /*
 * For some strange reason, range.pasteHTML fails if the node is a textNode and
 * the offset is 0. (The cursor is at the beginning of the line)
 * It will always insert the new content at position 1 instead of
 * position 0. Here we test for that case and do it the hard way.
 */
 node.insert(html, 'before');
 if (range.moveToElementText) {
 range.moveToElementText(Y.Node.getDOMNode(node.previous()));
 }
 //Move the cursor after the new node
 range.collapse(false);
 range.select();
 return node.previous();
 } else {
 newNode = Y.Node.create(html);
 try {
 range.pasteHTML('');
 } catch (e) {}
 inHTML = root.one('#rte-insert');
 if (inHTML) {
 inHTML.set('id', '');
 inHTML.replace(newNode);
 if (range.moveToElementText) {
 range.moveToElementText(Y.Node.getDOMNode(newNode));
 }
 range.collapse(false);
 range.select();
 return newNode;
 } else {
 Y.on('available', function() {
 inHTML.set('id', '');
 inHTML.replace(newNode);
 if (range.moveToElementText) {
 range.moveToElementText(Y.Node.getDOMNode(newNode));
 }
 range.collapse(false);
 range.select();
 }, '#rte-insert');
 }
 }
 } else {
 //TODO using Y.Node.create here throws warnings & strips first white space character
 //txt = Y.one(Y.Node.create(inHTML.substr(0, offset)));
 //txt2 = Y.one(Y.Node.create(inHTML.substr(offset)));
 if (offset > 0) {
 inHTML = node.get(textContent);

txt = Y.one(Y.config.doc.createTextNode(inHTML.substr(0, offset)));
                    txt2 = Y.one(Y.config.doc.createTextNode(inHTML.substr(offset)));

node.replace(txt, node);
 newNode = Y.Node.create(html);
 if (newNode.get('nodeType') === 11) {
 b = Y.Node.create('');
 b.append(newNode);
 newNode = b;
 }
 txt.insert(newNode, 'after');
 //if (txt2 && txt2.get('length')) {
 if (txt2) {
 newNode.insert(cur, 'after');
 cur.insert(txt2, 'after');
 this.selectNode(cur, collapse);
 }
 } else {
 if (node.get('nodeType') === 3) {
 node = node.get('parentNode') || root;
 }
 newNode = Y.Node.create(html);
 html = node.get('innerHTML').replace(/\n/gi, '');
 if (html === '' || html === ' ') {
 node.append(newNode);
 } else {
 if (newNode.get('parentNode')) {
 node.insert(newNode, 'before');
 } else {
 root.prepend(newNode);
 }
 }
 if (node.get('firstChild').test('br')) {
 node.get('firstChild').remove();
 }
 }
 }
 return newNode;
 },
 /**
 * Get all elements inside a selection and wrap them with a new element and return a NodeList of all elements touched.
 * @method wrapContent
 * @param {String} tag The tag to wrap all selected items with.
 * @return {NodeList} A NodeList of all items in the selection.
 */
 wrapContent: function(tag) {
 tag = (tag) ? tag : Y.EditorSelection.DEFAULT_TAG;

if (!this.isCollapsed) {
                var items = this.getSelected(),
                    changed = [], range, last, first, range2;

items.each(function(n, k) {
                    var t = n.get('tagName').toLowerCase();
                    if (t === 'font') {
                        changed.push(this._swap(items.item(k), tag));
                    } else {
                        changed.push(this._wrap(items.item(k), tag));
                    }
                }, this);

range = this.createRange();
                first = changed[0];
                last = changed[changed.length - 1];
                if (this._selection.removeAllRanges) {
                    range.setStart(changed[0], 0);
                    range.setEnd(last, last.childNodes.length);
                    this._selection.removeAllRanges();
                    this._selection.addRange(range);
                } else {
                    if (range.moveToElementText) {
                        range.moveToElementText(Y.Node.getDOMNode(first));
                        range2 = this.createRange();
                        range2.moveToElementText(Y.Node.getDOMNode(last));
                        range.setEndPoint('EndToEnd', range2);
                    }
                    range.select();
                }

changed = Y.all(changed);
                return changed;

} else {
                return Y.all([]);
            }
        },
        /**
        * Find and replace a string inside a text node and replace it with HTML focusing the node after
        * to allow you to continue to type.
        * @method replace
        * @param {String} se The string to search for.
        * @param {String} re The string of HTML to replace it with.
        * @return {Node} The node inserted.
        */
        replace: function(se,re) {
            var range = this.createRange(), node, txt, index, newNode;

if (range.getBookmark) {
                index = range.getBookmark();
                txt = this.anchorNode.get('innerHTML').replace(se, re);
                this.anchorNode.set('innerHTML', txt);
                range.moveToBookmark(index);
                newNode = Y.one(range.parentElement());
            } else {
                node = this.anchorTextNode;
                txt = node.get(textContent);
                index = txt.indexOf(se);

txt = txt.replace(se, '');
 node.set(textContent, txt);
 newNode = this.insertAtCursor(re, node, index, true);
 }
 return newNode;
 },
 /**
 * Destroy the range.
 * @method remove
 * @chainable
 * @return {EditorSelection}
 */
 remove: function() {
 if (this._selection && this._selection.removeAllRanges) {
 this._selection.removeAllRanges();
 }
 return this;
 },
 /**
 * Wrapper for the different range creation methods.
 * @method createRange
 * @return {Range}
 */
 createRange: function() {
 if (Y.config.doc.selection) {
 return Y.config.doc.selection.createRange();
 } else {
 return Y.config.doc.createRange();
 }
 },
 /**
 * Select a Node (hilighting it).
 * @method selectNode
 * @param {Node} node The node to select
 * @param {Boolean} collapse Should the range be collapsed after insertion. default: false
 * @chainable
 * @return {EditorSelection}
 */
 selectNode: function(node, collapse, end) {
 if (!node) {
 return;
 }
 end = end || 0;
 node = Y.Node.getDOMNode(node);
 var range = this.createRange();
 if (range.selectNode) {
 try {
 range.selectNode(node);
 } catch (err) {
 // Ignore selection errors like INVALID_NODE_TYPE_ERR
 }
 this._selection.removeAllRanges();
 this._selection.addRange(range);
 if (collapse) {
 try {
 this._selection.collapse(node, end);
 } catch (err) {
 this._selection.collapse(node, 0);
 }
 }
 } else {
 if (node.nodeType === 3) {
 node = node.parentNode;
 }
 try {
 range.moveToElementText(node);
 } catch(e) {}
 if (collapse) {
 range.collapse(((end) ? false : true));
 }
 range.select();
 }
 return this;
 },
 /**
 * Put a placeholder in the DOM at the current cursor position.
 * @method setCursor
 * @return {Node}
 */
 setCursor: function() {
 this.removeCursor(false);
 return this.insertContent(Y.EditorSelection.CURSOR);
 },
 /**
 * Get the placeholder in the DOM at the current cursor position.
 * @method getCursor
 * @return {Node}
 */
 getCursor: function() {
 return Y.EditorSelection.ROOT.all('.' + Y.EditorSelection.CURID).get('parentNode');
 },
 /**
 * Remove the cursor placeholder from the DOM.
 * @method removeCursor
 * @param {Boolean} keep Setting this to true will keep the node, but remove the unique parts that make it the cursor.
 * @return {Node}
 */
 removeCursor: function(keep) {
 var cur = this.getCursor();
 if (cur && cur.remove) {
 if (keep) {
 cur.set('innerHTML', ' ');
 } else {
 cur.remove();
 }
 }
 return cur;
 },
 /**
 * Gets a stored cursor and focuses it for editing, must be called sometime after setCursor
 * @method focusCursor
 * @return {Node}
 */
 focusCursor: function(collapse, end) {
 if (collapse !== false) {
 collapse = true;
 }
 if (end !== false) {
 end = true;
 }
 var cur = this.removeCursor(true);
 if (cur) {
 cur.each(function(c) {
 this.selectNode(c, collapse, end);
 }, this);
 }
 },
 /**
 * Generic toString for logging.
 * @method toString
 * @return {String}
 */
 toString: function() {
 return 'EditorSelection Object';
 },

/**
         Gets the offset of the selection for the selection within the current
         editor
         @public
         @method getEditorOffset
         @param {Y.Node} [node] Element used to measure the offset to
         @return Number Number of characters the selection is from the beginning
         @since 3.13.0
         */
        getEditorOffset: function(node) {
            var container = (node || Y.EditorSelection.ROOT).getDOMNode(),
                caretOffset = 0,
                doc = Y.config.doc,
                win = Y.config.win,
                sel,
                range,
                preCaretRange;

if (typeof win.getSelection !== "undefined") {
                range = win.getSelection().getRangeAt(0);
                preCaretRange = range.cloneRange();
                preCaretRange.selectNodeContents(container);
                preCaretRange.setEnd(range.endContainer, range.endOffset);
                caretOffset = preCaretRange.toString().length;
            } else {
                sel = doc.selection;

if ( sel && sel.type !== "Control") {
                    range = sel.createRange();
                    preCaretRange = doc.body.createTextRange();
                    preCaretRange.moveToElementText(container);
                    preCaretRange.setEndPoint("EndToEnd", range);
                    caretOffset = preCaretRange.text.length;
                }
            }

return caretOffset;
        }
    };

//TODO Remove this alias in 3.6.0
    Y.Selection = Y.EditorSelection;

}, '3.18.1', {"requires": ["node"]});

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