dojo/mouse提供了鼠标事件中需要的属性和方法。
简介：通常用法为：在鼠标事件(onMouseDown(event))中，通过dojo/mouse判断鼠标左键点击、右键点击、中轮点击还是滚轮滑动。
属性：
enter：鼠标经过(hovers over)
leave：鼠标离开(stop hovers over)
方法：
isLeft(event)：鼠标是否左键点击
isMiddle(event)：鼠标是否右键点击
isRight(event)：鼠标是否中轮点击
wheel(node, listener)：鼠标滚轮滑动
实例代码如下(dojo配置和引用代码省略)：
<!DOCTYPE html>
<html >
<head>
<style type="text/css">
@import url("http://localhost/arcgis_js_api/library/3.12/3.12/dijit/themes/claro/claro.css");
</style>
<script type="text/javascript">
var dojoConfig = {
isDebug: true, // 调试
async: true,
parseOnLoad: false
};
</script>
<script type="text/javascript" src="http://localhost/arcgis_js_api/library/3.12/3.12/init.js"></script>
<script> require([ "dojo/ready", "dojo/mouse", "dojo/on", "dojo/dom", "dojox/image/LightboxNano", "dijit/layout/ContentPane", "dijit/form/Button", "dojo/domReady!" ], function (ready,mouse,on,dom,LightboxNano,ContentPane,Button) {var btn = new Button({ label:"Button", onMouseDown:function(event){ alert("onClick"); if(mouse.isLeft(event)){ alert("leftClick"); }else if(mouse.isMiddle(event)){ alert("MiddleClick"); }else if(mouse.isRight(event)){ alert("RightClick"); }else if(mouse.isMiddle(event)){ alert("leftClick"); } } },"btn"); on(dom.byId(btn),mouse.enter,function(){ mouse.wheel(dom.byId(btn),function(e){ alert(e.wheelDelta); }) });
});
</script>
</head>
<body class="claro">
<div id="btn"></div>
</body>
</html>