如何将缩略图添加到模态图像

时间:2016-05-20 04:33:24

标签: javascript html css modal-dialog

问题:如何使用缩略图制作模态图像?不是原始图像作为缩略图,因为我有特定的图像用作缩略图。

我目前正在尝试在我的网站的页面中创建一个小的5图片库。到目前为止,我有一个库,可以执行以下操作:

  • 按下缩略图时,全尺寸图像将显示在新窗口中

我希望我的图片显示在页面前面,而不会离开图库。

我研究过并发现了如何在我的画廊中实现模态图像。

正如您在上一张图片中看到的,我实现了一个模态函数。

使用此模态功能,我可以拍摄图像并使其成为缩略图的大小,一旦点击它就会变大,屏幕变为灰色。本身它正在做我想要它做的事情,除了我想要一个不同的图像作为缩略图和一个不同的图像作为出现的全尺寸图像的部分。



  <div id="content">  
        <div class="imageRow">
            
            <div class="single">
                <a href="images/examples/image-prints-1.jpg" rel="lightbox" title="">
                	<img src="images/examples/thumbs-prints-1.jpg" alt=""/></a><br /> 
            </div>      
                  
            <div class="single">
                <a href="images/examples/image-prints-2.jpg" rel="lightbox" title="">
                    <img src="images/examples/thumbs-prints-2.jpg" alt="" /></a><br /> 
            </div>
            
            <div class="single">
                <a href="images/examples/image-prints-3.jpg" rel="lightbox" title="">
                    <img src="images/examples/thumbs-prints-3.jpg" alt="" /></a><br /> 
            </div>

            <div class="single">
                <a href="images/examples/image-prints-4.jpg" rel="lightbox" title="">
                    <img src="images/examples/thumbs-prints-4.jpg" alt="" /></a><br /> 
            </div>

        <!-- Trigger the Modal -->
	    
	    <img id="myImg" src="images/examples/thumbs-prints-5.jpg" alt="Trolltunga, Norway" width="79" height="79"/>

	<!-- The Modal -->
	    <div id="myModal" class="modal">

	<!-- The Close Button -->
	    <span class="close" onclick="document.getElementById('myModal').style.display='none'">&times;</span>

	<!-- Modal Content (The Image)  -->
	    <img class="modal-content" id="img01">

	<!-- Modal Caption (Image Text) -->
	    <div id="caption"></div>
            </div>
        </div>

    </div>
    
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这是javascript。

var modal = document.getElementById('myModal');

// Get the image and insert it inside the modal - use its "alt" text as a caption
var img = document.getElementById('myImg');
var modalImg = document.getElementById("img01");
var captionText = document.getElementById("caption");
img.onclick = function(){
    modal.style.display = "block";
    modalImg.src = this.src;
    modalImg.alt = this.alt;
    captionText.innerHTML = this.alt;
}

// Get the <span> element that closes the modal
var span = document.getElementsByClassName("close")[0];

// When the user clicks on <span> (x), close the modal
span.onclick = function() { 
  modal.style.display = "none";
}

这是css代码

/* ------------- MODAL STARTS----------------*/
/* Style the Image Used to Trigger the Modal */
#myImg {
    border-radius: 0px; /* changed from 5px to 0px so the thumbnails are not rounded */
    cursor: pointer;
    transition: 0.3s;
}

#myImg:hover {opacity: 0.5;}

/* The Modal (background) */
.modal {
    display: none; /* Hidden by default */
    position: fixed; /* Stay in place */
    z-index: 1; /* Sit on top */
    padding-top: 100px; /* Location of the box */
    left: 0;
    top: 0;
    width: 100%; /* Full width */
    height: 100%; /* Full height */
    overflow: auto; /* Enable scroll if needed */
    background-color: rgb(0,0,0); /* Fallback color */
    background-color: rgba(0,0,0,0.9); /* Black w/ opacity */
}

/* Modal Content (Image) */
.modal-content {
    margin: auto;
    display: block;
    width: 80%;
    max-width: 700px;
}

/* Caption of Modal Image (Image Text) - Same Width as the Image */
#caption {
    margin: auto;
    display: block;
    width: 80%;
    max-width: 700px;
    text-align: center;
    color: #ccc;
    padding: 10px 0;
    height: 150px;
}

/* Add Animation - Zoom in the Modal */
.modal-content, #caption { 
    -webkit-animation-name: zoom;
    -webkit-animation-duration: 0.6s;
    animation-name: zoom;
    animation-duration: 0.6s;
}

@-webkit-keyframes zoom {
    from {-webkit-transform:scale(0)} 
    to {-webkit-transform:scale(1)}
}

@keyframes zoom {
    from {transform:scale(0)} 
    to {transform:scale(1)}
}

/* The Close Button */
.close {
    position: absolute;
    top: 15px;
    right: 35px;
    color: #f1f1f1;
    font-size: 40px;
    font-weight: bold;
    transition: 0.3s;
}

.close:hover,
.close:focus {
    color: #bbb;
    text-decoration: none;
    cursor: pointer;
}

/* 100% Image Width on Smaller Screens */
@media only screen and (max-width: 700px){
    .modal-content {
        width: 100%;
    }
}

/* ------------- MODAL ENDS ------------------*/

我试图尽可能广泛,以免让任何人感到困惑。

0 个答案:

没有答案