wxxsd/UEditor/_src/plugins/enterkey.js

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///import core
///import plugins/undo.js
///commands 设置回车标签p或br
///commandsName  EnterKey
///commandsTitle  设置回车标签p或br
/**
 * @description 处理回车
 * @author zhanyi
 */
UE.plugins['enterkey'] = function() {
    var hTag,
        me = this,
        tag = me.options.enterTag;
    me.addListener('keyup', function(type, evt) {

        var keyCode = evt.keyCode || evt.which;
        if (keyCode == 13) {
            var range = me.selection.getRange(),
                start = range.startContainer,
                doSave;

            //修正在h1-h6里边回车后不能嵌套p的问题
            if (!browser.ie) {

                if (/h\d/i.test(hTag)) {
                    if (browser.gecko) {
                        var h = domUtils.findParentByTagName(start, [ 'h1', 'h2', 'h3', 'h4', 'h5', 'h6','blockquote'], true);
                        if (!h) {
                            me.document.execCommand('formatBlock', false, '<p>');
                            doSave = 1;
                        }
                    } else {
                        //chrome remove div
                        if (start.nodeType == 1) {
                            var tmp = me.document.createTextNode(''),div;
                            range.insertNode(tmp);
                            div = domUtils.findParentByTagName(tmp, 'div', true);
                            if (div) {
                                var p = me.document.createElement('p');
                                while (div.firstChild) {
                                    p.appendChild(div.firstChild);
                                }
                                div.parentNode.insertBefore(p, div);
                                domUtils.remove(div);
                                range.setStartBefore(tmp).setCursor();
                                doSave = 1;
                            }
                            domUtils.remove(tmp);

                        }
                    }

                    if (me.undoManger && doSave) {
                        me.undoManger.save()
                    }
                }

            }