【发布时间】:2015-06-22 22:52:33
【问题描述】:
我在鼠标指针上“附加”了一个关键帧动画。理想情况下,当用户闲置 2 秒时,鼠标周围会出现一个脉冲,然后在用户激活时消失。我正在切换“脉冲”类的可见性。有两个问题:
- 关键帧动画不再附加到鼠标移动
- 当用户空闲时,动画将出现在脉搏的任何阶段。它可能非常小且微弱或厚实且不透明,但在用户再次移动之前,环将保持静止:
var TimeoutID;
function inputdetect() {
// attaches event handler to specified event
// takes event as string, function to run, and optional boolean
// to indicate when the event propogates
// these are false, so events "bubble up"
this.addEventListener("mousemove",resetTimer,false);
this.addEventListener("mousedown",resetTimer,false);
this.addEventListener("mousewheel",resetTimer,false);
this.addEventListener("keypress",resetTimer,false);
this.addEventListener("touchmove",resetTimer,false);
this.addEventListener("DOMmousescroll",resetTimer,false);
this.addEventListener("MSpointermove",resetTimer,false);
startTimer();
}
inputdetect();
function startTimer() {
//waits two seconds before calling inactive
TimeoutID = window.setTimeout(goInactive,2000); // does it need to take the window variable??
}
function resetTimer(e) {
window.clearTimeout(TimeoutID);
goActive();
}
function goActive() {
//what happens when the UI is not idle
$('p').text("The UI is not idle.");
$('.cursory').css("background-color","green");
$('.pulse').css('visibility','hidden');
startTimer();
}
function goInactive() {
$('p').text("The UI is idle.");
// REPLACING CURSOR WHEN UI IS IDLE
//this part won't work
$('.cursory').css("background-color","red");
$('.pulse').css('visibility','visible');
}
// THIS changes the pointer to a css element
$(document).ready(function() {
$(document).on('mousemove', function(e) {
$('.cursory').css({
left: e.pageX,
top: e.pageY
});
});
});
html {
cursor: none;
}
.cursory {
height: 10px;
width: 10px;
border-radius: 100%;
margin: 0px;
padding: 5px;
background-color: green;
background-clip: content-box;
position: fixed;
}
.pulse {
border: 3px solid blue;
-webkit-border-radius:30px;
height:18px;
width:18px;
position: fixed;
z-index:-1;
left:-7px;
top:-7px;
-webkit-animation: pulsate 1s ease-out;
-webkit-animation-iteration-count: infinite;
opacity: 0.0
}
@-webkit-keyframes pulsate {
0% {-webkit-transform: scale(0.1, 0.1); opacity: 0.0;}
50% {opacity: 1.0;}
100% {-webkit-transform: scale(1.2, 1.2); opacity: 0.0;}
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<div class = "cursory"><div class = "pulse"></div></div>
<!--this is where the HTML will go*/-->
<p>hello</p>
强调文字
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标签: javascript jquery css animation mouse