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UE . registerUI ( 'myimgs' , function ( editor , uiName ) {
//注册按钮执行时的command命令, 使用命令默认就会带有回退操作
editor . registerCommand ( uiName , {
execCommand : function ( ) {
alert ( 'execCommand:' + uiName )
}
} ) ;
//创建一个button
var btn = new UE . ui . Button ( {
//按钮的名字
name : uiName ,
//提示
title : uiName ,
//添加额外样式, 指定icon图标, 这里默认使用一个重复的icon
cssRules : 'background-position: -500px 0;' ,
//点击时执行的命令
onclick : function ( ) {
//这里可以不用执行命令,做你自己的操作也可
editor . execCommand ( uiName ) ;
}
} ) ;
//当点到编辑内容上时,按钮要做的状态反射
editor . addListener ( 'selectionchange' , function ( ) {
var state = editor . queryCommandState ( uiName ) ;
if ( state == - 1 ) {
btn . setDisabled ( true ) ;
btn . setChecked ( false ) ;
} else {
btn . setDisabled ( false ) ;
btn . setChecked ( state ) ;
}
} ) ;
//因为你是添加button,所以需要返回这个button
return btn ;
} ) ;