How to hide other div apart from touched div to the band

user_10054910 0
Viewed 278

I want to hide other divs apart from touched div to the band

the band is this element <div class="center-band"></div>

whenever the scrolling element touches the element <div class="center-band"></div> then it has to be shown, and other divs have to be hidden

Question: only touched div to the band has to be shown, and others has to be hidden, that means only one content has to be shown at a time.

jsbin: https://jsbin.com/zudideheza/edit?html,css,js,console,output

$(function()
{
    var pos = 1;
    var ii = 0;

    var intId = setInterval(function()
    {
        ii++;
        pos = - ii;
        //console.log(pos);

        $('.container').css({
            transform: 'translateY(' + pos + 'px)'
        });
    }, 100);
});
.container {
    width: 100%;
    height: 100%;
    background: #000000d6;
    font-size: 19px;
    color: #a19999;
    position: relative;
}

.contents {
    margin-bottom: 15px;
    border-bottom: 1px solid #424242;
    padding: 20px;
}

.center-band {
    width: 98%;
    height: 78px;
    z-index: 200;
    background: #b4b1b147;
    position: fixed;
    top: 50%;
}

.wrapper {
  position: relative;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<div class="wrapper">
<div class="container" style="transform:translateY(0px);">
  <div class="contents"> (1)  Lorem ipsum dolor sit amet, consectetur adipisicing elit. Necessitatibus fugit eius perferendis veritatis accusantium corporis nulla alias sed possimus quibusdam reiciendis nisi maiores inventore error, incidunt eveniet ut asperiores officiis.</div>
  <div class="contents">(2) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Minima, distinctio temporibus facere, laboriosam doloribus error quaerat ipsa, non nobis rerum mollitia quibusdam quas illo a qui consequuntur consectetur deleniti saepe.</div>
  <div class="contents">(3) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Unde, sed, atque. Adipisci quasi debitis, soluta praesentium distinctio impedit veritatis officia molestias culpa fuga excepturi voluptates suscipit aliquam ea unde, non!</div>
  <div class="contents">(4) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Consequuntur, incidunt, harum. Perferendis ipsum, molestias nihil sequi nam nulla, aliquid ipsa numquam cum! Perferendis ut voluptates hic excepturi dolores, ipsum impedit.</div>
  <div class="contents">(5) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Enim itaque debitis voluptates, reiciendis dolorum, labore eius. Illum similique ex, iusto rerum ratione minima, corporis aspernatur aliquam, itaque numquam sint enim!</div>
  <div class="contents">(6) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Sint numquam totam, a aliquam veritatis porro ullam! Nostrum sint ipsum odio aperiam deserunt aut placeat dignissimos est ad, quae vitae aliquid.</div>
  <div class="contents">(7) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Et quos atque enim, alias culpa quibusdam ratione, beatae non possimus, velit eaque. Optio qui saepe, earum harum beatae maxime obcaecati minima.</div>
  <div class="contents">(8) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Hic id incidunt sapiente, magni, sequi ea molestiae iure maxime delectus doloribus error assumenda veritatis maiores saepe nihil neque autem similique obcaecati!</div>
  <div class="contents">(9) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Voluptatum velit hic iure nam nulla natus corrupti eveniet, suscipit voluptates nostrum. Cupiditate vero ipsam alias fuga, magnam voluptas deserunt corporis non!</div>
  <div class="contents">(10) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Repudiandae voluptatibus accusamus pariatur? Ipsum nobis ratione fuga, voluptates quam placeat officia odit eveniet aliquam, eaque quisquam tenetur! Exercitationem maxime vel quas!</div>      
</div>

<div class="center-band"></div>

</div>

Note: I don't want to change scrolling content approach (question is not about positioning)

Please help me thanks in advance!!!!

jquery javascript
3 Answers

Try this out:

$(function()
{
var pos = 1;
var ii = 0;



var intId = setInterval(function()
{
    ii++;
    pos = - ii;
    //console.log(pos);

    $('.inner-content').css({
        transform: 'translateY(' + pos + 'px)'
    });


}, 100);
});
.container {
    width: 100%;
    height: 100%;
    background: #000000d6;
    font-size: 19px;
    color: #a19999;
    position: relative;
}

.contents {
    margin-bottom: 15px;
    border-bottom: 1px solid #424242;
    padding: 20px;
    /*visibility:hidden;*/
}
.show{
    /*visibility: visible;*/
}

.center-band {
    width: 98%;
    height: 78px;
    z-index: 200;
    background: #b4b1b147;
    position: fixed;
    top: 50%;
}

.wrapper {
  position: relative;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="wrapper">
  <div class="container">
    <div class=" center-band"  style="overflow-y:hidden;">

      <div class="inner-content" style=" transform:translateY(0px);">
        <div class="contents"> (1)  Lorem ipsum dolor sit amet, consectetur adipisicing elit. Necessitatibus fugit eius perferendis veritatis accusantium corporis nulla alias sed possimus quibusdam reiciendis nisi maiores inventore error, incidunt eveniet ut asperiores officiis.</div>
        <div class="contents">(2) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Minima, distinctio temporibus facere, laboriosam doloribus error quaerat ipsa, non nobis rerum mollitia quibusdam quas illo a qui consequuntur consectetur deleniti saepe.</div>
        <div class="contents">(3) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Unde, sed, atque. Adipisci quasi debitis, soluta praesentium distinctio impedit veritatis officia molestias culpa fuga excepturi voluptates suscipit aliquam ea unde, non!</div>
        <div class="contents">(4) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Consequuntur, incidunt, harum. Perferendis ipsum, molestias nihil sequi nam nulla, aliquid ipsa numquam cum! Perferendis ut voluptates hic excepturi dolores, ipsum impedit.</div>
        <div class="contents">(5) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Enim itaque debitis voluptates, reiciendis dolorum, labore eius. Illum similique ex, iusto rerum ratione minima, corporis aspernatur aliquam, itaque numquam sint enim!</div>
        <div class="contents">(6) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Sint numquam totam, a aliquam veritatis porro ullam! Nostrum sint ipsum odio aperiam deserunt aut placeat dignissimos est ad, quae vitae aliquid.</div>
        <div class="contents">(7) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Et quos atque enim, alias culpa quibusdam ratione, beatae non possimus, velit eaque. Optio qui saepe, earum harum beatae maxime obcaecati minima.</div>
        <div class="contents">(8) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Hic id incidunt sapiente, magni, sequi ea molestiae iure maxime delectus doloribus error assumenda veritatis maiores saepe nihil neque autem similique obcaecati!</div>
        <div class="contents">(9) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Voluptatum velit hic iure nam nulla natus corrupti eveniet, suscipit voluptates nostrum. Cupiditate vero ipsam alias fuga, magnam voluptas deserunt corporis non!</div>
        <div class="contents">(10) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Repudiandae voluptatibus accusamus pariatur? Ipsum nobis ratione fuga, voluptates quam placeat officia odit eveniet aliquam, eaque quisquam tenetur! Exercitationem maxime vel quas!</div>    
      </div>

    </div>
  </div>          
</div>

user_99511070

This is not exactly the direct answer to your questions, but another approach to solve this. May be this will help you somehow.

var domRect = document.getElementById('center-band').getBoundingClientRect();
var centerBandTop = domRect.top+20;
var centerBandBottom = domRect.top + 58;

$(function(){
   var pos = 1;
   var ii = 0;
   var intId = setInterval(function(){
    ii++;
    pos =- ii;
    $('.container').css({
         transform   :  'translateY('+pos+'px)'
    });
  

    $('.contents').each(function(idx,ele){
         var domContent = document.getElementsByClassName('contents')[idx].getBoundingClientRect();
        // console.log(idx +'---'+  domContent.top) 
         if(domContent.top < centerBandBottom && domContent.bottom > centerBandTop ){
                 //$(ele).text('');
         }
         else{
                //$(ele).css('color','#fff');
         }
  })
   },100);
});
.container{
z-index:999;
   width: 100%;
    height: 100%;
    /*background: #222;*/
    font-size: 19px;
    color: #222;
    position: relative;
}

.contents{
    margin-bottom: 15px;
   /* border-bottom: 1px solid #424242;*/
    padding: 20px;
    color:#fff;
}

#center-band{
    width: 98%;
    height: 78px;
    
    background: #222;
    position: fixed;
    top: 50%;
}

.wrapper{
  position: relative;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="wrapper">
<div class="container" style="transform:translateY(0px);">
  <div class="contents"> (1)  Lorem ipsum dolor sit amet, consectetur adipisicing elit. Necessitatibus fugit eius perferendis veritatis accusantium corporis nulla alias sed possimus quibusdam reiciendis nisi maiores inventore error, incidunt eveniet ut asperiores officiis.</div>
  <div class="contents">(2) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Minima, distinctio temporibus facere, laboriosam doloribus error quaerat ipsa, non nobis rerum mollitia quibusdam quas illo a qui consequuntur consectetur deleniti saepe.</div>
  <div class="contents">(3) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Unde, sed, atque. Adipisci quasi debitis, soluta praesentium distinctio impedit veritatis officia molestias culpa fuga excepturi voluptates suscipit aliquam ea unde, non!</div>
  <div class="contents">(4) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Consequuntur, incidunt, harum. Perferendis ipsum, molestias nihil sequi nam nulla, aliquid ipsa numquam cum! Perferendis ut voluptates hic excepturi dolores, ipsum impedit.</div>
  <div class="contents">(5) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Enim itaque debitis voluptates, reiciendis dolorum, labore eius. Illum similique ex, iusto rerum ratione minima, corporis aspernatur aliquam, itaque numquam sint enim!</div>
  <div class="contents">(6) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Sint numquam totam, a aliquam veritatis porro ullam! Nostrum sint ipsum odio aperiam deserunt aut placeat dignissimos est ad, quae vitae aliquid.Lorem ipsum dolor sit amet, consectetur adipisicing elit. Sint numquam totam, a aliquam veritatis porro ullam! Nostrum sint ipsum odio aperiam deserunt aut placeat dignissimos est ad, quae vitae aliquid.</div>
  <div class="contents">(7) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Et quos atque enim, alias culpa quibusdam ratione, beatae non possimus, velit eaque. Optio qui saepe, earum harum beatae maxime obcaecati minima.</div>
  <div class="contents">(8) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Hic id incidunt sapiente, magni, sequi ea molestiae iure maxime delectus doloribus error assumenda veritatis maiores saepe nihil neque autem similique obcaecati!</div>
  <div class="contents">(9) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Voluptatum velit hic iure nam nulla natus corrupti eveniet, suscipit voluptates nostrum. Cupiditate vero ipsam alias fuga, magnam voluptas deserunt corporis non!</div>
  <div class="contents">(10) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Repudiandae voluptatibus accusamus pariatur? Ipsum nobis ratione fuga, voluptates quam placeat officia odit eveniet aliquam, eaque quisquam tenetur! Exercitationem maxime vel quas!</div>
  
</div>
    <div id="center-band"> </div>
</div>

user_28204090

It depends on whether you want to include the margins or not, but you can use the following to detect the positions and then apply the class over to the .content divs that are currently hovered over:

$(function() {
  var pos = 1;
  var ii = 0;

  var centerbandTop = $('.center-band').offset().top;
  var centerbandBottom = $('.center-band').outerHeight() + centerbandTop;

  var intId = setInterval(function() {
    ii++;
    pos = -ii;

    $('.contents').each(function() {
      var $content = $(this);
      var contentTop = $content.offset().top;
      var contentBottom = $content.outerHeight() + contentTop;

      $content.removeClass('over');

      if (centerbandBottom > contentTop && centerbandTop < contentBottom)
        $content.addClass('over');
    });

    $('.container').css({
      // '-webkit-transform' : 'translate(0,' + pos + ')',
      transform: 'translateY(' + pos + 'px)'
    });

  }, 100);
});

Demo: http://plnkr.co/edit/YwaPy3qz07goW5ZfwARl

user_15448860
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