如何恢复 Kinetic.js 事件?我编写了一个 Kinetic.js “形状按钮”,它监听 mouseover 和 mouseout 事件。当我点击它时,它会改变颜色并且不再听鼠标悬停/退出。当我第二次单击它时,我希望它再次听到 mouseover 和 mouseout。我试图删除一个单击事件并在两个事件中恢复另一个事件,但是我无法恢复一个事件,因为
circle.on("eventname")
我必须定义一个函数,
circle.on("eventname", function(){//do stuff here});
但它会以定义函数的连续循环结束
谢谢你的回答!
这是我的代码:
<head>
<script src="http://www.html5canvastutorials.com/libraries/kinetic-v4.0.0.js"> </script>
<script>
var layer = new Kinetic.Layer();
var sfcolor = '#00ff00'
var nfcolor = '#0000ff'
var cfcolor = '#ff0000'
var smcolor = '#009a00'
var nmcolor = '#00009a'
var cmcolor = '#9a0000'
var slcolor = '#007000'
var nlcolor = '#000070'
var clcolor = '#700000'
function drawCircle(sx, sy, sradius, sstrokeWidth) {
var stage = new Kinetic.Stage({ container: "container", width: 578, height: 200 });
var circleLayer = new Kinetic.Layer();
//circle
var scircle = new Kinetic.Circle({
x: sx,
y: sy,
radius: sradius,
fill: {
start: {
x: 0,
y: 0,
radius: 0
},
end: {
x: 0,
y: 0,
radius: sradius
},
colorStops: [0, sfcolor, 0.5, smcolor, 1, slcolor]
},
stroke: slcolor,
strokeWidth: sstrokeWidth
});
scircle.on("mouseover.event1", function() {
this.setFill({
start: {
x: 0,
y: 0,
radius: 0
},
end: {
x: 0,
y: 0,
radius: sradius
},
colorStops: [0, nfcolor, 0.5, nmcolor, 1, nlcolor]
});
this.setStroke(nlcolor);
scircle.off("click.event2");
circleLayer.draw();
});
scircle.on("mouseout.event1", function() {
this.setFill({
start: {
x: 0,
y: 0,
radius: 0
},
end: {
x: 0,
y: 0,
radius: sradius
},
colorStops: [0, sfcolor, 0.5, smcolor, 1, slcolor]
});
this.setStroke(slcolor);
scircle.off("click.event2");
circleLayer.draw();
});
scircle.on("click.event1", function() {
this.setFill({
start: {
x: 0,
y: 0,
radius: 0
},
end: {
x: 0,
y: 0,
radius: sradius
},
colorStops: [0, cfcolor, 0.5, cmcolor, 1, clcolor]
});
this.setStroke(clcolor);
scircle.off("mouseout.event1");
scircle.off("mouseover.event1");
scircle.off("click.event1");
scircle.on("click.event2", function() {
this.setFill({
start: {
x: 0,
y: 0,
radius: 0
},
end: {
x: 0,
y: 0,
radius: sradius
},
colorStops: [0, nfcolor, 0.5, nmcolor, 1, nlcolor]
});
this.setStroke(clcolor);
scircle.on("mouseout.event1");
scircle.on("mouseover.event1");
scircle.on("click.event1");
scircle.off("click.event2");
circleLayer.draw();
});
circleLayer.draw();
});
circleLayer.add(scircle);
stage.add(circleLayer);
}
window.onload = function() {
drawCircle(200, 100, 50, 3);
};
</script>
</head>
<body>
<div id="container">
</div>
</body>