动画synching，光标和突出 [英] Animation synching, cursor and highlight

问题描述

所以我几乎有我的 code 的工作，我想怎样，但可以'吨得到我的动画一起同步恰到好处。我试图动画光标突出显示文本，然后按钮上点击。的问题是，光标可以是太慢或太快。我试图让这个动态这样的不管是文字多久，我还能有动画同步即可。我知道这可能只是一个数学问题，但不能完全得到我的头周围。关于尝试搭配毫秒像素的事情是让我目瞪口呆。请帮我拔出我的头发了。谢谢。

So I almost have my code working how I want, but can't get my animation synched together just right. I am trying to animate a cursor highlighting text, and then clicking on a button. The problem is that the cursor is either too slow or too fast. I am trying to make this dynamic so that no matter how long the text is I can still have the animation synch. I know that it is probably just a math issue, but can't quite get my head around it. Something about trying to match pixels with milliseconds is making my head spin. Please help before I pull out all my hair. Thanks.

下面是HTML

<p><span id="container">I need to be highlighted one character at a time</span>
<input id="click" type="button" value="click me"/></p>
<img src="http://dl.dropbox.com/u/59918876/cursor.png" width="16"/>

下面是CSS

#container{
   font-size: 16px;  
   margin-right: 10px;   
}
.highlight{
    background: yellow;           
}
img{
  position: relative;
  top: -10px;    
} 

和JavaScript

And the javascript

function highlight(){
    var text = $('#container').text(); //get text of container
    $('#click').css('border','none'); //remove the border
    $('img').css('left', '0px'); //reset the cursor left
    $('img').animate({left: $('#container').width() + 40}, text.length*70); //animation of cursor
    $('#container').html('<span class="highlight">'+text.substring(0,1)+'</span><span>'+text.substring(1)+'</span>'); //set the first html
    (function myLoop (i) {//animation loop          
       setTimeout(function () {        
         var highlight = $('.highlight').text();
         var highlightAdd = $('.highlight').next().text().substring(0,1);;
         var plain = $('.highlight').next().text().substring(1);
         $('#container').html('<span class="highlight">'+highlight+highlightAdd+'</span><span>'+plain+'</span>');     
         if (--i) myLoop(i);//  decrement i and call myLoop again if i > 0
        }, 70)
    })(text.length);
    setTimeout(function () {   
        $('#click').css('border','1px solid black');
     }, text.length*85);
}

highlight();
var intervalID = setInterval(highlight, $('#container').text().length*110);
//clearInterval(intervalID);  

下面是一个链接小提琴我一直在玩周围

Here is a link to the fiddle I have been playing around in.

推荐答案

这可能会得到我失望投票，但也许你会得到一些更好的主意......

小提琴这里

This will probably get me down voted but maybe you will get some better idea...
Fiddle Here

$(document).ready(function() {
$('p').click(function(){

    $('span').animate({'width':'100'},1000);
    $('.cursor').animate({marginLeft: 100},1000);
});
});

这篇关于动画synching，光标和突出的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！