/**
 * 清空文档插件
 * @file
 * @since 1.2.6.1
 */

/**
 * 清空文档
 * @command cleardoc
 * @method execCommand
 * @param { String } cmd 命令字符串
 * @example
 * ```javascript
 * //editor 是编辑器实例
 * editor.execCommand('cleardoc');
 * ```
 */

UE.commands["cleardoc"] = {
  execCommand: function(cmdName) {
    var me = this,
      enterTag = me.options.enterTag,
      range = me.selection.getRange();
    if (enterTag == "br") {
      me.body.innerHTML = "<br/>";
      range.setStart(me.body, 0).setCursor();
    } else {
      me.body.innerHTML = "<p>" + (ie ? "" : "<br/>") + "</p>";
      range.setStart(me.body.firstChild, 0).setCursor(false, true);
    }
    setTimeout(function() {
      me.fireEvent("clearDoc");
    }, 0);
  }
};