/**
 * 插入段落
 * @file
 * @since 1.2.6.1
 */

/**
 * 插入段落
 * @command insertparagraph
 * @method execCommand
 * @param { String } cmd 命令字符串
 * @example
 * ```javascript
 * //editor是编辑器实例
 * editor.execCommand( 'insertparagraph' );
 * ```
 */

UE.commands["insertparagraph"] = {
  execCommand: function(cmdName, front) {
    var me = this,
      range = me.selection.getRange(),
      start = range.startContainer,
      tmpNode;
    while (start) {
      if (domUtils.isBody(start)) {
        break;
      }
      tmpNode = start;
      start = start.parentNode;
    }
    if (tmpNode) {
      var p = me.document.createElement("p");
      if (front) {
        tmpNode.parentNode.insertBefore(p, tmpNode);
      } else {
        tmpNode.parentNode.insertBefore(p, tmpNode.nextSibling);
      }
      domUtils.fillNode(me.document, p);
      range.setStart(p, 0).setCursor(false, true);
    }
  }
};