現在我在玩KonvaJS。我在shape
上設置了一個click
事件監聽器。當我點擊shape
時,偵聽器被調用。在我的聽衆中,我調用了event.preventDefault()
方法來停止觸發其他事件。但是當我這樣做時,它說Uncaught TypeError: event.preventDefault is not a function
。我不知道我錯過了什麼。這裏是我的code:KonvaJS:event.preventDefault不是函數
<!DOCTYPE html>
<html>
<head>
<script src="https://cdn.rawgit.com/konvajs/konva/0.9.5/konva.min.js"></script>
<meta charset="utf-8">
<title>Konva Scale Animation Demo</title>
<style>
body {
margin: 0;
padding: 0;
overflow: hidden;
background-color: #F0F0F0;
}
</style>
</head>
<body>
<div id="container"></div>
<script>
var width = window.innerWidth;
var height = window.innerHeight;
var stage = new Konva.Stage({
container: 'container',
width: width,
height: height
});
var layer = new Konva.Layer();
stage.add(layer);
var gArrow2 = new Image();
var circle2 = new Konva.Image({
x: 60, //on canvas
y: 60,
image: gArrow2,
name: 'abc',
id: 'xyz',
draggable:true
});
circle2.on('click',function(event){
event.preventDefault()
console.log(e.type);
});
circle2.on('mouseup',function(event){
event.preventDefault()
console.log(e.type);
});
gArrow2.onload = function() {
layer.add(circle2);
layer.draw();
}
gArrow2.src = 'http://konvajs.github.io/assets/snake.png';
var period = 1500;
var amplitude = 10;
var centerX = stage.getWidth()/2;
var centerY = stage.getHeight()/2;
var anim = new Konva.Animation(function(frame) {
circle2.setY(amplitude * Math.sin(frame.time * 2 * Math.PI/period) + centerY);
}, layer);
anim.start();
</script>
</body>
</html>
你釘了它的兄弟。謝謝。當用戶點擊形狀時,我可以停止觸發'mouseup'事件嗎? –
如果您想在點擊時刪除默認操作,阻止點擊事件就足夠了。無需在'mouseup'上調用'preventDefault'。 –
感謝兄弟。 :) –