如何使用jQuery将背景图像url从一个div传递到另一个div？

Question

我有一套div，当被选中时，打开一个模态窗口。我希望模态窗口的背景图像url被传递到从div选择打开它。

下面是div和模态窗口的html：

  <div class="cover-item" style="background-image: url('https://d1nexqccu6ll7z.cloudfront.net/_images/s-14-197-61462CCC-uk.png')"></div>
  <div class="cover-item" style="background-image: url('https://d1nexqccu6ll7z.cloudfront.net/_images/s-14-1177-64ACF6EA-uk.png')"></div>
  <div class="cover-item" style="background-image: url('https://d1nexqccu6ll7z.cloudfront.net/_images/s-14-1195-057710EE-uk.png')"></div>

  <div class="modal-window"></div>

CSS最初用于隐藏模态，然后在调用时显示它：

.modal-window //hide it out the viewport initially {
  -webkit-transform: translate(-50%, -200%);
  -ms-transform: translate(-50%, -200%);
  transform: translate(-50%, -200%);

   background-image: url(/* want to dynamically set this */)

  -webkit-transition: all 0.3s ease-in-out;
  -moz-transition: all 0.3s ease-in-out;
  -ms-transition: all 0.3s ease-in-out;
   transition: all 0.3s ease-in-out;
}

.modal-window-open //reveal it {
  -webkit-transform: translate(-50%, 0);
  -ms-transform: translate(-50%, 0);
  transform: translate(-50%, 0);
}

我使用的jQuery只用于在选择div时打开模式窗口：

 $('.cover-item').on('click', function() {
      $('.modal-window').toggleClass('modal-window-open');
  });

现在如何让特定的.cover-item div在被选中时将其背景图像url传递到模态窗口？

Answer 1

Try following code    
$('.cover-item').on('click', function() {
          var bg = $(this).css('background-image');
          $('.modal-window').toggleClass('modal-window-open');
          $('.modal-window').css("background-image", bg);  
      });

Answer 2

使用html()和this的组合

$('.cover-item').on('click', function() {
      $('.modal-window').html($(this));
      $('.modal-window').toggleClass('modal-window-open');

  });

Answer 3

我猜您需要将onclick侦听器添加到div本身，并将div对象的引用传递给您调用的函数。就像这样：

最后，将背景设置为JS中的. background div：

var setBackground = function (divObject) {
    $('.modal-window').toggleClass('modal-window-open');
    //Dynamically sets BG image
    $('.modal-window').css('background-image', divObject.style.backgroundImage);
};

不过，还没有测试过你的风格。但是上面的例子很好，只要设置div的高度和宽度。