dojo/mouse鼠标

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>