使用npm安裝photoswipe
npm i photoswipe
編輯photoswipe的vue組件
<template>
<!-- 這段html代碼，是用來顯示圖片彈出層的，是由photoswipe提供的 -->
<!-- Root element of PhotoSwipe. Must have class pswp. -->
<div class="pswp" tabindex="-1" role="dialog" aria-hidden="true">
<!-- Background of PhotoSwipe.
It's a separate element as animating opacity is faster than rgba(). -->
<div class="pswp__bg"></div>
<!-- Slides wrapper with overflow:hidden. -->
<div class="pswp__scroll-wrap">
<!-- Container that holds slides.
PhotoSwipe keeps only 3 of them in the DOM to save memory.
Don't modify these 3 pswp__item elements, data is added later on. -->
<div class="pswp__container">
<div class="pswp__item"></div>
<div class="pswp__item"></div>
<div class="pswp__item"></div>
</div>
<!-- Default (PhotoSwipeUI_Default) interface on top of sliding area. Can be changed. -->
<div class="pswp__ui pswp__ui--hidden">
<div class="pswp__top-bar">
<!-- Controls are self-explanatory. Order can be changed. -->
<div class="pswp__counter"></div>
<button class="pswp__button pswp__button--close" title="Close (Esc)"></button>
<button class="pswp__button pswp__button--share" title="Share"></button>
<button class="pswp__button pswp__button--fs" title="Toggle fullscreen"></button>
<button class="pswp__button pswp__button--zoom" title="Zoom in/out"></button>
<!-- Preloader demo https://codepen.io/dimsemenov/pen/yyBWoR -->
<!-- element will get class pswp__preloader--active when preloader is running -->
<div class="pswp__preloader">
<div class="pswp__preloader__icn">
<div class="pswp__preloader__cut">
<div class="pswp__preloader__donut"></div>
</div>
</div>
</div>
</div>
<div class="pswp__share-modal pswp__share-modal--hidden pswp__single-tap">
<div class="pswp__share-tooltip"></div>
</div>
<button class="pswp__button pswp__button--arrow--left" title="Previous (arrow left)">
</button>
<button class="pswp__button pswp__button--arrow--right" title="Next (arrow right)">
</button>
<div class="pswp__caption">
<div class="pswp__caption__center"></div>
</div>
</div>
</div>
</div>
</template>
<script>
// 引入photoswipe的js和css文件
import PhotoSwipe from 'photoswipe/dist/photoswipe'
import PhotoSwipeUI_Default from 'photoswipe/dist/photoswipe-ui-default'
import 'photoswipe/dist/photoswipe.css'
import 'photoswipe/dist/default-skin/default-skin.css'
export default {
name: 'ZeroPhotoSwipe',
methods: {
/**
* 父組件調用初始化圖片彈出層
* photoswipe提供的方法，這裏沒有做任何修改，直接拿來用了
* @param gallerySelector
*/
initPhotoSwipeFromDOM(gallerySelector) {
// parse slide data (url, title, size ...) from DOM elements
// (children of gallerySelector)
var parseThumbnailElements = function (el) {
var thumbElements = el.childNodes,
numNodes = thumbElements.length,
items = [],
figureEl,
linkEl,
size,
item;
for (var i = 0; i < numNodes; i++) {
figureEl = thumbElements[i]; // <figure> element
// include only element nodes
if (figureEl.nodeType !== 1) {
continue;
}
linkEl = figureEl.children[0]; // <a> element
size = linkEl.getAttribute('data-size').split('x');
// create slide object
item = {
src: linkEl.getAttribute('href'),
w: parseInt(size[0], 10),
h: parseInt(size[1], 10)
};
if (figureEl.children.length > 1) {
// <figcaption> content
item.title = figureEl.children[1].innerHTML;
}
if (linkEl.children.length > 0) {
// <img> thumbnail element, retrieving thumbnail url
item.msrc = linkEl.children[0].getAttribute('src');
}
item.el = figureEl; // save link to element for getThumbBoundsFn
items.push(item);
}
return items;
};
// find nearest parent element
var closest = function closest(el, fn) {
return el && ( fn(el) ? el : closest(el.parentNode, fn) );
};
// triggers when user clicks on thumbnail
var onThumbnailsClick = function (e) {
e = e || window.event;
e.preventDefault ? e.preventDefault() : e.returnValue = false;
var eTarget = e.target || e.srcElement;
// find root element of slide
var clickedListItem = closest(eTarget, function (el) {
return (el.tagName && el.tagName.toUpperCase() === 'FIGURE');
});
if (!clickedListItem) {
return;
}
// find index of clicked item by looping through all child nodes
// alternatively, you may define index via data- attribute
var clickedGallery = clickedListItem.parentNode,
childNodes = clickedListItem.parentNode.childNodes,
numChildNodes = childNodes.length,
nodeIndex = 0,
index;
for (var i = 0; i < numChildNodes; i++) {
if (childNodes[i].nodeType !== 1) {
continue;
}
if (childNodes[i] === clickedListItem) {
index = nodeIndex;
break;
}
nodeIndex++;
}
if (index >= 0) {
// open PhotoSwipe if valid index found
openPhotoSwipe(index, clickedGallery);
}
return false;
};
// parse picture index and gallery index from URL (#&pid=1&gid=2)
var photoswipeParseHash = function () {
var hash = window.location.hash.substring(1),
params = {};
if (hash.length < 5) {
return params;
}
var vars = hash.split('&');
for (var i = 0; i < vars.length; i++) {
if (!vars[i]) {
continue;
}
var pair = vars[i].split('=');
if (pair.length < 2) {
continue;
}
params[pair[0]] = pair[1];
}
if (params.gid) {
params.gid = parseInt(params.gid, 10);
}
return params;
};
var openPhotoSwipe = function (index, galleryElement, disableAnimation, fromURL) {
var pswpElement = document.querySelectorAll('.pswp')[0],
gallery,
options,
items;
items = parseThumbnailElements(galleryElement);
// define options (if needed)
options = {
// define gallery index (for URL)
galleryUID: galleryElement.getAttribute('data-pswp-uid'),
getThumbBoundsFn: function (index) {
// See Options -> getThumbBoundsFn section of documentation for more info
var thumbnail = items[index].el.getElementsByTagName('img')[0], // find thumbnail
pageYScroll = window.pageYOffset || document.documentElement.scrollTop,
rect = thumbnail.getBoundingClientRect();
return {x: rect.left, y: rect.top + pageYScroll, w: rect.width};
}
};
// PhotoSwipe opened from URL
if (fromURL) {
if (options.galleryPIDs) {
// parse real index when custom PIDs are used
// http://photoswipe.com/documentation/faq.html#custom-pid-in-url
for (var j = 0; j < items.length; j++) {
if (items[j].pid == index) {
options.index = j;
break;
}
}
} else {
// in URL indexes start from 1
options.index = parseInt(index, 10) - 1;
}
} else {
options.index = parseInt(index, 10);
}
// exit if index not found
if (isNaN(options.index)) {
return;
}
if (disableAnimation) {
options.showAnimationDuration = 0;
}
// Pass data to PhotoSwipe and initialize it
gallery = new PhotoSwipe(pswpElement, PhotoSwipeUI_Default, items, options);
gallery.init();
};
// loop through all gallery elements and bind events
var galleryElements = document.querySelectorAll(gallerySelector);
for (var i = 0, l = galleryElements.length; i < l; i++) {
galleryElements[i].setAttribute('data-pswp-uid', i + 1);
galleryElements[i].onclick = onThumbnailsClick;
}
// Parse URL and open gallery if it contains #&pid=3&gid=1
var hashData = photoswipeParseHash();
if (hashData.pid && hashData.gid) {
openPhotoSwipe(hashData.pid, galleryElements[hashData.gid - 1], true, true);
}
}
}
}
</script>
在vue頁面中調用
<template>
<div>
<zero-photo-swipe ref="zeroPhoto"></zero-photo-swipe>
<div class="my-gallery">
<!-- 這裏必須用figure包起來，除非改一個init方法 -->
<figure>
<a href="http://img2.imgtn.bdimg.com/it/u=1818897280,1407634690&fm=26&gp=0.jpg" data-size="10x10">
<img src="http://img2.imgtn.bdimg.com/it/u=1818897280,1407634690&fm=26&gp=0.jpg" style="max-width:100%" v-on:load="loadImgSize($event)"/>
</a>
</figure>
<figure>
<a href="http://b-ssl.duitang.com/uploads/item/201707/04/20170704094057_HjxvW.jpeg" data-size="10x10">
<img src="http://b-ssl.duitang.com/uploads/item/201707/04/20170704094057_HjxvW.jpeg" style="max-width:100%" v-on:load="loadImgSize($event)"/>
</a>
</figure>
</div>
</div>
</template>
<script>
import ZeroPhotoSwipe from "../components/PhotoSwipe.vue";
export default {
name: 'Gallery',
components: {
ZeroPhotoSwipe
},
mounted(){
// 調用初始化圖片photoswipe
this.$refs.zeroPhoto.initPhotoSwipeFromDOM('.my-gallery')
},
methods:{
/**
* 加載圖片結束時自動添加photoswipe需要的data-size
* @param e
*/
loadImgSize(e) {
var target = e.currentTarget
var x = target.clientWidth
var y = target.clientHeight
target.dataSize = `${x}x${y}`
target.parentNode.setAttribute('data-size', `${x}x${y}`)
},
}
}
</script>
