如何跨浏览器标准化CSS3转换结束事件? [英] How do I normalize the CSS3 transition end events across browsers?
本文介绍了如何跨浏览器标准化CSS3转换结束事件?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
即:
//doing browser sniffing
var transitionend = (isSafari) ? "webkitTransitionEnd" : (isFirefox) ? "transitionEnd" : (isOpera) ? "oTransitionEnd";
element.addEventListener(transitionend, function(){
//do whatever
},false);
或
// Assigning an event listener per browser
element.addEventListener("webkitTransitionEnd", fn);
element.addEventListener("oTransitionEnd", fn);
element.addEventListener("transitionEnd", fn);
function fn() {
//do whatever
}
推荐答案
Modelnizr中使用了一种改进的技术:
function transitionEndEventName () {
var i,
undefined,
el = document.createElement('div'),
transitions = {
'transition':'transitionend',
'OTransition':'otransitionend', // oTransitionEnd in very old Opera
'MozTransition':'transitionend',
'WebkitTransition':'webkitTransitionEnd'
};
for (i in transitions) {
if (transitions.hasOwnProperty(i) && el.style[i] !== undefined) {
return transitions[i];
}
}
//TODO: throw 'TransitionEnd event is not supported in this browser';
}
然后,只要需要转换结束事件,您就可以调用此函数:
var transitionEnd = transitionEndEventName();
element.addEventListener(transitionEnd, theFunctionToInvoke, false);
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