Question

使用稍微修改过的bootstrap轮播，我需要能够检测到祖父母div（在本例中为.row类），这可能与默认的.row-default（有一个.row-light不同透明背景），.row-dark和#fff。我可以从相应的类中获取浅色和深色，但我需要能够检测背景颜色是否设置为透明，并将控件类设置为白色或<div class="row row-dark"> <div class="container"> <div class="carousel slide" id="myCarousel"> <div class="quote-carousel"> <div class="carousel-inner"> <h6>What customers say about us</h6> <div class="item active"> <ul class="thumbnails"> <li class="col-xs-12 col-sm-12 slide-content"> <h3>"Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do tempor incididunt ut labore et dolore magna aliqua, ipsum dolor amet."</h3> <span class="time">-Robyn Estroff</span> </li> </ul> </div> <div class="item"> <ul class="thumbnails"> <li class="col-xs-12 col-sm-12 slide-content"> <h3>"Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do tempor incididunt ut labore et dolore magna aliqua, ipsum dolor amet."</h3> <span class="time">-Robyn Estroff</span> </li> </ul> </div> <div class="item"> <ul class="thumbnails"> <li class="col-xs-12 col-sm-12 slide-content"> <h3>"Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do tempor incididunt ut labore et dolore magna aliqua, ipsum dolor amet."</h3> <span class="time">-Robyn Estroff</span> </li> </ul> </div> </div> <a class="left carousel-control" href="#myCarousel" role="button" data-slide="prev"> <i class="material-icons"></i> </a> <a class="right carousel-control" href="#myCarousel" role="button" data-slide="next"> <i class="material-icons"></i> </a> </div> </div> </div> </div>，如果祖父母设置为透明。这将允许控件位于转盘滑动边缘上。

HTML

.row-dark{
  background-color: #ddd;
}

.quote-carousel{
  h6{
    color: $purple;
    font-weight: bold;
    text-align: center;
  }
  h3{
    color: $dark-navy-blue;
    font-weight: 100;
    padding: 30px 0px 30px 0px;
    margin: 0% 12% -1% 12%;
  }
  .carousel{
    position: relative;
    width: 60%;
    margin: 0 auto;
    min-height: 170px;
    padding-left: 5%;
    padding-right: 5%;
  }
  .carousel-control{
    padding-top: 4%;
    padding-bottom: 7%;
    width:7%;
  }
  .material-icons{
    color: $black;
    padding: 0px;
    border: 1px solid $darkest-grey;
    border-top-right-radius: 50px;
    border-top-left-radius: 50px;
    border-bottom-right-radius: 50px;
    border-bottom-left-radius: 50px;
  }
  .active{
    margin-top: -13px;
  }
  .thumbnails{
    padding: 0px 40px;
    li{
      margin-bottom: 5%;
    }
  }
  .slide-content{
    text-align: center;
  }
}

/***************** TABLET **************/
@media (min-device-width: $screen-sm-min) and (max-device-width: $screen-lg-min) {
  .quote-carousel h3{
    margin: 0 auto;
    padding: 30px 0px 15px;
  }
  .carousel-control{
    background-color: #ebebeb;
    padding-top: 4%;
    padding-bottom: 7%;
    width: 7%;
  }
}

/****************** MOBILE ***************/
@media (max-device-width: $screen-xs-max) {
  .quote-carousel h3{
    margin: 0 auto;
    font-size: 12px;
    padding: 30px 0px 15px;
  }
  .carousel-control{
    background-color: #ebebeb;
    padding-top: 4%;
    padding-bottom: 7%;
    width: 7%
  }
}

CSS

$('.left').hide();
$('.carousel').carousel({
      wrap: false
    }).on('slid.bs.carousel', function () {
        curSlide = $('.active');
      if(curSlide.is( ':nth-child(2)' )) {
         $('.left').hide();
         return;
      } else {
         $('.left').show();
      }
      if (curSlide.is( ':last-child' )) {
         $('.right').hide();
         return;
      } else {
         $('.right').show();
      }
    });

的jQuery

jQuery.fn.inheritGrandparent = function( property ) {
  var $this = $(this),
      value = $this.parent().parent().parent().parent().css(property);
  if(property && value) $this.css(property, value);
};
$('.carousel-control').inheritGrandparent('background');

这是抓住祖父母班级并从那里申请该属性，但如果行背景透明，我不知道如何将控件背景设置为白色。

<cfhttp url="https://api.sendgrid.com/v3/asm/suppressions/global/emailAddress@unsub.com" method="delete" result="returnStruct3">
    <cfhttpparam name="Authorization" value="Basic #ToBase64('accountUserName:AccountPassword')#" type="header">
</cfhttp>

小提琴：https://jsfiddle.net/ccajtj64/1/

Answer 1

我认为最简单的方法是将您的函数转换为条件，看看祖父母是否有.row-default类，并相应地应用。

jQuery.fn.inheritGrandparent = function( property ) {
      var $this = $(this),
          grandparent = $this.closest('.row'),
          value = grandparent.css(property);
      if (property && value) {
        if (grandparent.hasClass('row-default')) {
            $this.css(property, 'white');
        } else {
            $this.css(property, value);
        }
      }
        };
    $('.carousel-control').inheritGrandparent('background');

但您也可以检查祖父母类的值并使用条件。它返回的值可能不一致，因浏览器而异。

jQuery.fn.inheritGrandparent = function( property ) {
      var $this = $(this),
          value = $this.closest('.row').css(property);
      if (property && value) {
        if (value.indexOf('transparent') !== -1 || value.indexOf('rgba(0, 0, 0, 0)') !== -1 ) {
            $this.css(property, 'white');
        } else {
            $this.css(property, value);
        }
      }
        };
    $('.carousel-control').inheritGrandparent('background');

如果父div是透明的，则将子div设置为白色

1 个答案: