#

API Docs for: 3.10.3
Show: Inherited Protected Private Deprecated

# File: editor/js/editor-para.js

        /**
         * Plugin for Editor to paragraph auto wrapping and correction.
         * @class Plugin.EditorPara
         * @extends Plugin.EditorParaBase
         * @constructor
         * @module editor
         * @submodule editor-para
         */

        var EditorPara = function() {
            EditorPara.superclass.constructor.apply(this, arguments);
        }, HOST = 'host', BODY = 'body', NODE_CHANGE = 'nodeChange', PARENT_NODE = 'parentNode',
        FIRST_P = BODY + ' > p', P = 'p', BR = '<br>', FC = 'firstChild', LI = 'li';

        Y.extend(EditorPara, Y.Plugin.EditorParaBase, {
            /**
            * nodeChange handler to handle fixing an empty document.
            * @private
            * @method _onNodeChange
            */
            _onNodeChange: function(e) {
                var host = this.get(HOST), inst = host.getInstance(),
                    html, txt, par , d, sel, btag = inst.EditorSelection.DEFAULT_BLOCK_TAG,
                    inHTML, txt2, childs, aNode, node2, top, n, sib, para2, prev,
                    ps, br, item, p, imgs, t, LAST_CHILD = ':last-child', para, b, dir,
                    lc, lc2, found = false, start;

                switch (e.changedType) {
                    case 'enter-up':
                        para = ((this._lastPara) ? this._lastPara : e.changedNode);
                        b = para.one('br.yui-cursor');

                        if (this._lastPara) {
                            delete this._lastPara;
                        }

                        if (b) {
                            if (b.previous() || b.next()) {
                                if (b.ancestor(P)) {
                                    b.remove();
                                }
                            }
                        }
                        if (!para.test(btag)) {
                            para2 = para.ancestor(btag);
                            if (para2) {
                                para = para2;
                                para2 = null;
                            }
                        }
                        if (para.test(btag)) {
                            prev = para.previous();
                            if (prev) {
                                lc = prev.one(LAST_CHILD);
                                while (!found) {
                                    if (lc) {
                                        lc2 = lc.one(LAST_CHILD);
                                        if (lc2) {
                                            lc = lc2;
                                        } else {
                                            found = true;
                                        }
                                    } else {
                                        found = true;
                                    }
                                }
                                if (lc) {
                                    host.copyStyles(lc, para);
                                }
                            }
                        }
                        break;
                    case 'enter':
                        if (Y.UA.webkit) {
                            //Webkit doesn't support shift+enter as a BR, this fixes that.
                            if (e.changedEvent.shiftKey) {
                                host.execCommand('insertbr');
                                e.changedEvent.preventDefault();
                            }
                        }
                        if (e.changedNode.test('li') && !Y.UA.ie) {
                            html = inst.EditorSelection.getText(e.changedNode);
                            if (html === '') {
                                par = e.changedNode.ancestor('ol,ul');
                                dir = par.getAttribute('dir');
                                if (dir !== '') {
                                    dir = ' dir = "' + dir + '"';
                                }
                                par = e.changedNode.ancestor(inst.EditorSelection.BLOCKS);
                                d = inst.Node.create('<p' + dir + '>' + inst.EditorSelection.CURSOR + '</p>');
                                par.insert(d, 'after');
                                e.changedNode.remove();
                                e.changedEvent.halt();

                                sel = new inst.EditorSelection();
                                sel.selectNode(d, true, false);
                            }
                        }
                        //TODO Move this to a GECKO MODULE - Can't for the moment, requires no change to metadata (YMAIL)
                        if (Y.UA.gecko && host.get('defaultblock') !== 'p') {
                            par = e.changedNode;

                            if (!par.test(LI) && !par.ancestor(LI)) {
                                if (!par.test(btag)) {
                                    par = par.ancestor(btag);
                                }
                                d = inst.Node.create('<' + btag + '></' + btag + '>');
                                par.insert(d, 'after');
                                sel = new inst.EditorSelection();
                                if (sel.anchorOffset) {
                                    inHTML = sel.anchorNode.get('textContent');

                                    txt = inst.one(inst.config.doc.createTextNode(inHTML.substr(0, sel.anchorOffset)));
                                    txt2 = inst.one(inst.config.doc.createTextNode(inHTML.substr(sel.anchorOffset)));

                                    aNode = sel.anchorNode;
                                    aNode.setContent(''); //I
                                    node2 = aNode.cloneNode(); //I
                                    node2.append(txt2); //text
                                    top = false;
                                    sib = aNode; //I
                                    while (!top) {
                                        sib = sib.get(PARENT_NODE); //B
                                        if (sib && !sib.test(btag)) {
                                            n = sib.cloneNode();
                                            n.set('innerHTML', '');
                                            n.append(node2);

                                            //Get children..
                                            childs = sib.get('childNodes');
                                            start = false;
                                            /*jshint loopfunc: true */
                                            childs.each(function(c) {
                                                if (start) {
                                                    n.append(c);
                                                }
                                                if (c === aNode) {
                                                    start = true;
                                                }
                                            });

                                            aNode = sib; //Top sibling
                                            node2 = n;
                                        } else {
                                            top = true;
                                        }
                                    }
                                    txt2 = node2;
                                    sel.anchorNode.append(txt);

                                    if (txt2) {
                                        d.append(txt2);
                                    }
                                }
                                if (d.get(FC)) {
                                    d = d.get(FC);
                                }
                                d.prepend(inst.EditorSelection.CURSOR);
                                sel.focusCursor(true, true);
                                html = inst.EditorSelection.getText(d);
                                if (html !== '') {
                                    inst.EditorSelection.cleanCursor();
                                }
                                e.changedEvent.preventDefault();
                            }
                        }
                        break;
                    case 'keyup':
                        if (Y.UA.gecko) {
                            if (inst.config.doc && inst.config.doc.body && inst.config.doc.body.innerHTML.length < 20) {
                                if (!inst.one(FIRST_P)) {
                                    this._fixFirstPara();
                                }
                            }
                        }
                        break;
                    case 'backspace-up':
                    case 'backspace-down':
                    case 'delete-up':
                        if (!Y.UA.ie) {
                            ps = inst.all(FIRST_P);
                            item = inst.one(BODY);
                            if (ps.item(0)) {
                                item = ps.item(0);
                            }
                            br = item.one('br');
                            if (br) {
                                br.removeAttribute('id');
                                br.removeAttribute('class');
                            }

                            txt = inst.EditorSelection.getText(item);
                            txt = txt.replace(/ /g, '').replace(/\n/g, '');
                            imgs = item.all('img');

                            if (txt.length === 0 && !imgs.size()) {
                                //God this is horrible..
                                if (!item.test(P)) {
                                    this._fixFirstPara();
                                }
                                p = null;
                                if (e.changedNode && e.changedNode.test(P)) {
                                    p = e.changedNode;
                                }
                                if (!p && host._lastPara && host._lastPara.inDoc()) {
                                    p = host._lastPara;
                                }
                                if (p && !p.test(P)) {
                                    p = p.ancestor(P);
                                }
                                if (p) {
                                    if (!p.previous() && p.get(PARENT_NODE) && p.get(PARENT_NODE).test(BODY)) {
                                        Y.log('Stopping the backspace event', 'warn', 'editor-para');
                                        e.changedEvent.frameEvent.halt();
                                        e.preventDefault();
                                    }
                                }
                            }
                            if (Y.UA.webkit) {
                                if (e.changedNode) {
                                    //All backspace calls in Webkit need a preventDefault to
                                    //stop history navigation #2531299
                                    e.preventDefault();
                                    item = e.changedNode;
                                    if (item.test('li') && (!item.previous() && !item.next())) {
                                        html = item.get('innerHTML').replace(BR, '');
                                        if (html === '') {
                                            if (item.get(PARENT_NODE)) {
                                                item.get(PARENT_NODE).replace(inst.Node.create(BR));
                                                e.changedEvent.frameEvent.halt();
                                                inst.EditorSelection.filterBlocks();
                                            }
                                        }
                                    }
                                }
                            }
                        }
                        if (Y.UA.gecko) {
                            /*
                            * This forced FF to redraw the content on backspace.
                            * On some occasions FF will leave a cursor residue after content has been deleted.
                            * Dropping in the empty textnode and then removing it causes FF to redraw and
                            * remove the "ghost cursors"
                            */
                            d = e.changedNode;
                            t = inst.config.doc.createTextNode(' ');
                            d.appendChild(t);
                            d.removeChild(t);
                        }
                        break;
                }
                if (Y.UA.gecko) {
                    if (e.changedNode && !e.changedNode.test(btag)) {
                        p = e.changedNode.ancestor(btag);
                        if (p) {
                            this._lastPara = p;
                        }
                    }
                }

            },
            initializer: function() {
                var host = this.get(HOST);
                if (host.editorBR) {
                    Y.error('Can not plug EditorPara and EditorBR at the same time.');
                    return;
                }

                host.on(NODE_CHANGE, Y.bind(this._onNodeChange, this));
            }
        }, {
            /**
            * editorPara
            * @static
            * @property NAME
            */
            NAME: 'editorPara',
            /**
            * editorPara
            * @static
            * @property NS
            */
            NS: 'editorPara',
            ATTRS: {
                host: {
                    value: false
                }
            }
        });

        Y.namespace('Plugin');

        Y.Plugin.EditorPara = EditorPara;