1 回答
TA贡献2003条经验 获得超2个赞
2)您可以保存初始状态,然后将其还原:
$(document).ready(function() {
function scroll(ele){
var s = $(ele).text().substr(1)+$(ele).text().substr(0,1);
$(ele).text(s);
}
scrollInterval = null;
function startScrolling(e) {
if (!scrollInterval) {
$(e).data("text", $(e).text());
scrollInterval = setInterval(function(){
scroll(e)
},100);
}
}
function stopScrolling(e) {
clearInterval(scrollInterval);
scrollInterval = null;
$(e).text($(e).data("text"));
}
$(".mali").hover(function(){
startScrolling($(this));
});
$(".mali").mouseout(function(){
stopScrolling($(this));
});
$(".mali").mousedown(function(){
stopScrolling($(this));
});
});
.mali {
display: inline-block;
background: black;
color: white;
padding: 10px;
transition: all .2s;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
Something <a href="#" class="mali">something darkside</a>, Something something complete.
1)作为一个流畅的动画,我认为这是一个 PoC。也许它会帮助你进一步的想法。
$(document).ready(function() {
// Those global data could be stored in element's data.
var indent = 0,
width = 0,
padding = 10;
function scroll(ele){
// Every iteration decrease indent by value
indent -= 1;
// If is indent greater than or equal than real width
// (width with padding) reset indent.
if(-indent >= width+padding)
indent = 0;
// Aplly property
$(ele).css("text-indent", indent);
}
var scrollInterval = null;
function startScrolling(e) {
if (!scrollInterval) {
// Get text and real width
let text = $(e).text();
width = $(e).width()
$(e)
// Set real width & height, so that container stays
.width($(e).width())
.height($(e).height())
// Save text to data for reset
.data("text", text)
// Add 2 spans with text:
// <span>text</span><span>text</span>
// Where second span has defined padding on the left
.html($("<span>").text(text))
.append($("<span>").text(text).css("padding-left", padding+"px"));
resumeScrolling(e);
}
}
function stopScrolling(e) {
pauseScrolling(e);
// Reset
$(e)
// Revert real text and reset indent
.text($(e).data("text"))
.css("text-indent", indent = 0);
}
function pauseScrolling(e) {
clearInterval(scrollInterval);
scrollInterval = null;
}
function resumeScrolling(e) {
if (!scrollInterval) {
// Every 30ms repeat animation. It must be at least 25x per second
// so it runs smoothly. (So 1 - 40).
scrollInterval = setInterval(function(){
scroll(e)
},30);
}
}
$(".mali").hover(function(){
startScrolling($(this));
});
$(".mali").mouseout(function(){
stopScrolling($(this));
});
$(".mali").mousedown(function(){
stopScrolling($(this));
});
$("#start").click(function(){
startScrolling($(".mali"));
});
$("#stop").click(function(){
stopScrolling($(".mali"));
});
$("#pause").click(function(){
pauseScrolling($(".mali"));
});
$("#resume").click(function(){
resumeScrolling($(".mali"));
});
});
.mali {
display: inline-block;
background: black;
color: white;
padding: 10px;
/*
This could help, but you can't reset text-indent without animation.
transition: all .1s;
*/
overflow: hidden;
vertical-align: middle;
}
/* When you hover element, new span elements
can't take pointer events, so your elements
stays hovered. */
.mali span {
pointer-events: none;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
Something <a href="#" class="mali">something darkside</a>, Something something complete.
<br><br>
<button id="start">Start</button>
<button id="stop">Stop</button>
<button id="pause">Pause</button>
<button id="resume">Resume</button>
这背后的想法是:
制作元素
overflow:hidden;
所以没有文本会溢出设置固定尺寸
里面有重复的文字
每 x 毫秒更改文本缩进(x < 40 所以它是平滑的,必须至少为 25fps)
当它溢出时,将其重置以便它可以处于无限循环
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