如果子div不包含某些内联CSS，则将某些内联CSS添加到父div中

时间：2018-08-05 13:49:48

标签： jquery html css inline

基于下面的代码段，对于当前的show div，它将插入一个内联CSS display: block，而其他div将是display: none。所有这些div都包含相同的类.boxlink。他们的父div类是.product-link。

现在，我创建了一个if语句，如果.boxlink包含display: block的内联CSS，则其父div将具有内联CSS background: #E6DCD0。

但是它不起作用。我可以知道为什么以及如何解决吗？基本上，我希望当前的显示.boxlink的父显示.product-link为background: #E6DCD0。

P / S：if语句在jquery片段的下面。 

$(document).ready(function () {
  var $boxes = $('.boxlink');
  var $links = $('.product-link');
  var cycle = false;
  var cycle_step = 0;

  $('.productlist .product-link').mouseenter(function() {
    boxActivate(this.id);
    stopCycle();
  });

  $('.productlist .product-link').mouseleave(function() {
    cycle = setTimeout(function(){
        startCycle();
    }, 1000);
  });

  var boxActivate = function(id){
    $boxes.hide().filter('#box' + id).show();
  }
  // cycle - only when mouse is not over links
  var startCycle = function(){
    cycle = setInterval(function(){
        boxActivate($links.get(cycle_step).id);
        cycle_step++;
        if(cycle_step==$links.length) {
            cycle_step=0;
        }
    }, 3000);
  }
  var stopCycle = function(){
    clearInterval(cycle);
  }

  startCycle();

});

$(document).ready(function(){
if ( $('.boxlink').prop('style').display == 'block' ) {
   $('.boxlink').parent().css( "background", "#E6DCD0");
}
   });
.product-link {
    float: left;
    width: 128px;
}

.product-icon-box-desc-certified, .product-icon-box-desc-warranty, .product-icon-box-desc-buyback, .product-icon-box-desc-shipping {
    display: none;
    width: 512px;
}

.product-link:hover {
    background: #E6DCD0;
}

.product-icon-box-desc-certified {
    display: block;
    position: relative;
    top: 0px;
    left: 0;
    background: #fff;
}

.product-icon-box-desc-warranty {
    display: block;
    position: relative;
    top: 0px;
    left: -128px;
    background: #fff;
}

.product-icon-box-desc-buyback {
    display: block;
    position: relative;
    top: 0px;
    left: -256px;
    background: #fff;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<div class="productlist">
				<div id="link0" class="product-link">
					<a href="http://google.com" target="_blank">
						<img class="center-block" src="http://iceiceicy.com/wingwah/wp-content/uploads/2015/11/icon-ori.png" /> 
							<i>Authenticity & Restoration</i>
					</a>
					<div id="boxlink0" class="product-icon-box-desc-certified boxlink">
					<p class="certified-title">CERTIFIED AUTHENTIC</p>
					<p class="certified-desc">Aliquam libero lorem, rutrum vitae dolor quis, pellentesque placerat lectus. Suspendisse potenti. Sed ullamcorper dictum libero eget aliquet. In mauris est, blandit ut aliquam at, tristique ac orci. Quisque mollis, lectus in tempor bibendum, libero dui aliquet odio, vitae dictum arcu elit sit amet eros. Maecenas pellentesque nunc enim, id porta orci pretium vitae. Nam pellentesque sem vitae neque iaculis, vel tincidunt ligula mollis. In fringilla dictum tortor eu accumsan. Donec ac neque et ligula egestas venenatis. Donec malesuada ultricies posuere. Nullam risus nunc, finibus sit amet nisi ac, molestie tempor dui.</p>
					</div>
				</div>
				<div id="link1" class="product-link">
					<a href="http://google.com" target="_blank">
						<img class="center-block" src="http://iceiceicy.com/wingwah/wp-content/uploads/2015/11/icon-waranty.png" /> 
							<i>12 Months Warranty</i>
					</a>
					<div id="boxlink1" class="product-icon-box-desc-warranty boxlink">
					<p class="certified-title">CERTIFIED PRE-OWNED WATCHES WARRANTY</p>
					<p class="certified-desc">Donec ac nibh urna. Mauris porta quis lacus id efficitur. Mauris sit amet congue nunc. Nullam tellus lacus, vehicula non viverra id, fringilla eu sapien. Nulla facilisi. Pellentesque rutrum nulla in ex facilisis blandit non eu risus. Nam imperdiet sed risus fermentum tristique. Integer elementum vitae diam non volutpat. Praesent in mi blandit nunc efficitur elementum. Etiam dapibus dui dui, vitae pretium urna dapibus at.</p>
					</div>
				</div>
				<div id="link2" class="product-link">
					<a href="http://google.com" target="_blank">
						<img class="center-block" src="http://iceiceicy.com/wingwah/wp-content/uploads/2015/11/icon-buyback.png" /> 
							<i>Buy Back / Trade In Guarantee</i>
					</a>
					<div id="boxlink2" class="product-icon-box-desc-buyback boxlink">
					<p class="certified-title">LIFE TIME BUY BACK / TRADE-IN TERMS AND CONDITION</p>
					<p class="certified-desc">Phasellus dolor nisi, ullamcorper ac mauris posuere, scelerisque viverra urna. Vivamus eleifend ullamcorper ex condimentum iaculis. Nunc volutpat massa id dui imperdiet interdum. Nullam quis libero sed velit pretium ornare. In vestibulum sollicitudin est, a fermentum libero. Praesent in ultricies libero. Integer eget dignissim diam. Donec volutpat ultrices auctor. Proin euismod magna ut nulla condimentum tempor. Donec at elit magna. Etiam pretium, augue at fringilla porta, neque nibh pulvinar nibh, at posuere ex dui ac enim. Nunc erat nibh, rhoncus non varius et, blandit in purus.</p>
					</div>
</div>

3 个答案:

答案 0 :(得分：2)

您需要在 boxActivate 函数中插入我在上一个答案中建议的行。另外，在将背景颜色设置为下一个元素之前，请设置background：none。

您还需要做的一件事是在加载时为可见的Boxlink设置背景颜色。为此，我在document.ready上添加了以下行：

 $('.boxlink:last').parent().css( "background", "#E6DCD0");

从那时起，我可以看到您的最后 div正在加载中。

$(document).ready(function () {
  var $boxes = $('.boxlink');
  var $links = $('.product-link');
  var cycle = false;
  var cycle_step = 0;

  $('.productlist .product-link').mouseenter(function() {
    boxActivate(this.id);
    stopCycle();
  });

  $('.productlist .product-link').mouseleave(function() {
    cycle = setTimeout(function(){
        startCycle();
    }, 1000);
  });

  var boxActivate = function(id){
    $boxes.hide().filter('#box' + id).show();
     $('.boxlink').parent().css( "background", "none");
     $('.boxlink:visible').parent().css( "background", "#E6DCD0");
  }
  // cycle - only when mouse is not over links
  var startCycle = function(){
    cycle = setInterval(function(){
        boxActivate($links.get(cycle_step).id);
        cycle_step++;
        if(cycle_step==$links.length) {
            cycle_step=0;
        }
    }, 3000);
  }
  var stopCycle = function(){
    clearInterval(cycle);
  }

  startCycle();

});

$(document).ready(function(){
//if ( $('.boxlink').prop('style').display == 'block' ) {
  // $('.boxlink:visible').parent().css( "background", "#E6DCD0");
//}
  $('.boxlink:last').parent().css( "background", "#E6DCD0");
   });
.product-link {
    float: left;
    width: 128px;
}

.product-icon-box-desc-certified, .product-icon-box-desc-warranty, .product-icon-box-desc-buyback, .product-icon-box-desc-shipping {
    display: none;
    width: 512px;
}

.product-link:hover {
    background: #E6DCD0;
}

.product-icon-box-desc-certified {
    display: block;
    position: relative;
    top: 0px;
    left: 0;
    background: #fff;
}

.product-icon-box-desc-warranty {
    display: block;
    position: relative;
    top: 0px;
    left: -128px;
    background: #fff;
}

.product-icon-box-desc-buyback {
    display: block;
    position: relative;
    top: 0px;
    left: -256px;
    background: #fff;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<div class="productlist">
				<div id="link0" class="product-link">
					<a href="http://google.com" target="_blank">
						<img class="center-block" src="http://iceiceicy.com/wingwah/wp-content/uploads/2015/11/icon-ori.png" /> 
							<i>Authenticity & Restoration</i>
					</a>
					<div id="boxlink0" class="product-icon-box-desc-certified boxlink">
					<p class="certified-title">CERTIFIED AUTHENTIC</p>
					<p class="certified-desc">Aliquam libero lorem, rutrum vitae dolor quis, pellentesque placerat lectus. Suspendisse potenti. Sed ullamcorper dictum libero eget aliquet. In mauris est, blandit ut aliquam at, tristique ac orci. Quisque mollis, lectus in tempor bibendum, libero dui aliquet odio, vitae dictum arcu elit sit amet eros. Maecenas pellentesque nunc enim, id porta orci pretium vitae. Nam pellentesque sem vitae neque iaculis, vel tincidunt ligula mollis. In fringilla dictum tortor eu accumsan. Donec ac neque et ligula egestas venenatis. Donec malesuada ultricies posuere. Nullam risus nunc, finibus sit amet nisi ac, molestie tempor dui.</p>
					</div>
				</div>
				<div id="link1" class="product-link">
					<a href="http://google.com" target="_blank">
						<img class="center-block" src="http://iceiceicy.com/wingwah/wp-content/uploads/2015/11/icon-waranty.png" /> 
							<i>12 Months Warranty</i>
					</a>
					<div id="boxlink1" class="product-icon-box-desc-warranty boxlink">
					<p class="certified-title">CERTIFIED PRE-OWNED WATCHES WARRANTY</p>
					<p class="certified-desc">Donec ac nibh urna. Mauris porta quis lacus id efficitur. Mauris sit amet congue nunc. Nullam tellus lacus, vehicula non viverra id, fringilla eu sapien. Nulla facilisi. Pellentesque rutrum nulla in ex facilisis blandit non eu risus. Nam imperdiet sed risus fermentum tristique. Integer elementum vitae diam non volutpat. Praesent in mi blandit nunc efficitur elementum. Etiam dapibus dui dui, vitae pretium urna dapibus at.</p>
					</div>
				</div>
				<div id="link2" class="product-link">
					<a href="http://google.com" target="_blank">
						<img class="center-block" src="http://iceiceicy.com/wingwah/wp-content/uploads/2015/11/icon-buyback.png" /> 
							<i>Buy Back / Trade In Guarantee</i>
					</a>
					<div id="boxlink2" class="product-icon-box-desc-buyback boxlink">
					<p class="certified-title">LIFE TIME BUY BACK / TRADE-IN TERMS AND CONDITION</p>
					<p class="certified-desc">Phasellus dolor nisi, ullamcorper ac mauris posuere, scelerisque viverra urna. Vivamus eleifend ullamcorper ex condimentum iaculis. Nunc volutpat massa id dui imperdiet interdum. Nullam quis libero sed velit pretium ornare. In vestibulum sollicitudin est, a fermentum libero. Praesent in ultricies libero. Integer eget dignissim diam. Donec volutpat ultrices auctor. Proin euismod magna ut nulla condimentum tempor. Donec at elit magna. Etiam pretium, augue at fringilla porta, neque nibh pulvinar nibh, at posuere ex dui ac enim. Nunc erat nibh, rhoncus non varius et, blandit in purus.</p>
					</div>
</div>

答案 1 :(得分：0)

使用$('.boxlink').is(":visible")代替$('.boxlink').prop('style').display == 'block'

并为background而不是其父项添加$('.boxlink')

答案 2 :(得分：0)

可以使用css方法访问jquery中的css样式，如下所示：

if ( $('.boxlink').css('display') == 'block' ) {
   $('.boxlink').parent().css( "background", "#E6DCD0");
}

此外，您还可以使用（“：visible”）或（“：hidden”）选择器来检查元素是否可见：

 if ( !$('.boxlink').is(":hidden") ) {
       $('.boxlink').parent().css( "background", "#E6DCD0");
    }

或

 if ( $('.boxlink').is(":visible") ) {
       $('.boxlink').parent().css( "background", "#E6DCD0");
 }

您正在使用prop方法，该方法基本上用于元素的属性，例如。以获取或设置布尔值（如选中，禁用等）。style被视为其属性，而jQuery提供了单独的一组函数来操作DOM中的样式。这些是jquery：http://api.jquery.com/category/manipulation/style-properties/中存在的样式操作方法。

更新：

根据要求，要仅更改可见的boxlink父级背景，只​​需编写以下行即可：

$('.boxlink:visible').parent().css( "background", "#E6DCD0");
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