悬停时滚动 link 文本 - 无尽的选取框效果
Scrolling link text on hover - endless marquee effect
我正在为 link 寻找一种高效且流畅的解决方案,它可以像字幕效果一样在内联块框内滚动文本。
$(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) {
scrollInterval = setInterval(function(){
scroll(e)
},100);
}
}
function stopScrolling(e) {
clearInterval(scrollInterval);
scrollInterval = null;
}
$(".mali").hover(function(){
startScrolling($(this));
});
$(".mali").mouseout(function(){
stopScrolling($(this));
});
$(".mali").mousedown(function(){
stopScrolling($(this));
});
});
.mali {
display: inline-block;
background: black;
color: white;
padding: 10px;
}
<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.
到目前为止,我的解决方案实际上是在另一个线程的 stackoverlow 上找到的,并尝试使用它。
不过有两个问题。
1.) 由于这基本上是使用间隔循环遍历单个字母,因此效果不是很流畅。效果是口吃。
有没有人知道如何让它更流畅?也许在那种情况下根本不要使用这种方法,而可能使用 CSS 过渡来为文本设置动画?
2.) 有没有人有关于如何在我悬停后 return 到初始状态的巧妙解决方案?我想要悬停时的效果,但是当将鼠标从 link 移开时,它应该动画回到初始文本状态。
谢谢,
马特
2) 您可以保存初始状态,然后再还原它:
$(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>
背后的想法是:
- 创建元素
overflow:hidden;
这样文本就不会溢出
- 设置固定维度
- 里面有重复的文字
- 每 x 毫秒更改一次文本缩进(x < 40 以便平滑,必须至少为 25fps)
- 当它溢出时,重置它,这样它就可以无限循环
我正在为 link 寻找一种高效且流畅的解决方案,它可以像字幕效果一样在内联块框内滚动文本。
$(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) {
scrollInterval = setInterval(function(){
scroll(e)
},100);
}
}
function stopScrolling(e) {
clearInterval(scrollInterval);
scrollInterval = null;
}
$(".mali").hover(function(){
startScrolling($(this));
});
$(".mali").mouseout(function(){
stopScrolling($(this));
});
$(".mali").mousedown(function(){
stopScrolling($(this));
});
});
.mali {
display: inline-block;
background: black;
color: white;
padding: 10px;
}
<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.
到目前为止,我的解决方案实际上是在另一个线程的 stackoverlow 上找到的,并尝试使用它。
不过有两个问题。
1.) 由于这基本上是使用间隔循环遍历单个字母,因此效果不是很流畅。效果是口吃。
有没有人知道如何让它更流畅?也许在那种情况下根本不要使用这种方法,而可能使用 CSS 过渡来为文本设置动画?
2.) 有没有人有关于如何在我悬停后 return 到初始状态的巧妙解决方案?我想要悬停时的效果,但是当将鼠标从 link 移开时,它应该动画回到初始文本状态。
谢谢, 马特
2) 您可以保存初始状态,然后再还原它:
$(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>
背后的想法是:
- 创建元素
overflow:hidden;
这样文本就不会溢出 - 设置固定维度
- 里面有重复的文字
- 每 x 毫秒更改一次文本缩进(x < 40 以便平滑,必须至少为 25fps)
- 当它溢出时,重置它,这样它就可以无限循环