js-PhotoSwipe相册功能

PhotoSwipe.js官网：http://photoswipe.com/ ，在这个网站上可以下载到PhotoSwipe的文件以及相关的例子。

这个组件主要是用来展示图片、相册用的。

1、导入依赖的js和css

<link rel="stylesheet prefetch" href="../css/photoswipe/photoswipe.css"><link rel="stylesheet prefetch" href="../css/photoswipe/default-skin/default-skin.css"><script src="../js/photoswipe/photoswipe.js"></script><script src="../js/photoswipe/photoswipe-ui-default.min.js"></script>

2、PhotoSwipe（.pswp）元素添加到DOM

并列自己布局并放到底部

<!-- 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>                <!--关闭窗口-->                <button class="pswp__button pswp__button--close" title="Close (Esc)"></button>                <!--分享-->                <button class="pswp__button pswp__button--share" title="Share"></button>                <!--全屏-->                <button class="pswp__button pswp__button--fs" title="Toggle fullscreen"></button>                <!--放大缩小-->                <button class="pswp__button pswp__button--zoom" title="Zoom in/out"></button>                <!-- Preloader demo http://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>

3、初始化
执行PhotoSwipe构造函数。它接受4个参数：

1. 从步骤2（它必须被添加到DOM）.pswp元件。
2. PhotoSwipe UI类。如果包括了默认photoswipe-UI-default.js，类将是PhotoSwipeUI_Default。可以是假的。
3. 与对象（幻灯片）阵列。
4. options

var pswpElement = document.querySelectorAll('.pswp')[0];// build items arrayvar items = [    {        src: 'https://placekitten.com/600/400',        w: 600,        h: 400    },    {        src: 'https://placekitten.com/1200/900',        w: 1200,        h: 900    }];// define options (if needed)var options = {    // optionName: 'option value'    // for example:    index: 0 // start at first slide};// Initializes and opens PhotoSwipevar gallery = new PhotoSwipe( pswpElement, PhotoSwipeUI_Default, items, options);gallery.init();

示例

html：

<button id="btn">Open PhotoSwipe</button><!--以下内容固定--><!-- 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 slides in DOM to save memory. -->        <div class="pswp__container">            <!-- don't modify these 3 pswp__item elements, data is added later on -->            <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 http://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>

js：

var openPhotoSwipe = function() {    var pswpElement = document.querySelectorAll('.pswp')[0];    // build items array    var items = [        {            src: 'https://farm2.staticflickr.com/1043/5186867718_06b2e9e551_b.jpg',            w: 964,            h: 1024        },        {            src: 'https://farm7.staticflickr.com/6175/6176698785_7dee72237e_b.jpg',            w: 1024,            h: 683        }    ];    // define options (if needed)    var options = {             // history & focus options are disabled on CodePen                history: false,        focus: false,        showAnimationDuration: 0,        hideAnimationDuration: 0    };    var gallery = new PhotoSwipe( pswpElement, PhotoSwipeUI_Default, items, options);    gallery.init();};openPhotoSwipe();document.getElementById('btn').onclick = openPhotoSwipe;

结果：

项目中使用：

html:

<script src="../js/photoswipe/photoswipe.js"></script><script src="../js/photoswipe/photoswipe-ui-default.min.js"></script>    <link rel="stylesheet prefetch" href="../css/photoswipe/photoswipe.css">    <link rel="stylesheet prefetch" href="../css/photoswipe/default-skin/default-skin.css"><p ng-show="showPic" id="imgs" ng-cloak>    <img ng-repeat="srcImg in msg.picUrl"    ng-src="{{srcImg}}"    ng-click="toBigPic($index)"     alt=""     width="50%"     height="420px"></p><!--不需要分享和全屏就可以注释掉--><!---------------photoswipe开始-----------------------><!-- 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&#45;&#45;share" title="Share"></button>-->                <!--<button class="pswp__button pswp__button&#45;&#45;fs" title="Toggle fullscreen"></button>-->                <button class="pswp__button pswp__button--zoom" title="Zoom in/out"></button>                <!-- 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><!--------------photoswipe结束------------------->

JavaScript:

  /*------看大图---------------------*/        $scope.toBigPic = function (pos) {            var pswpElement = document.querySelectorAll('.pswp')[0];            var items = [];            var getItems = function () {                var aDiv = document.getElementById("imgs");                if (aDiv.hasChildNodes()) {                    for (var i = 0; i < aDiv.children.length; i++) {                        var img = aDiv.children;                        var item = {                            src: img[i].src,                            w: img[i].naturalWidth,                            h: img[i].naturalHeight                        };                        items.push(item);                        console.log(i + "===child====" + (item.src));                        console.log(i + "===child====" + (item.w));                        console.log(i + "===child====" + (item.h));                    }                }            };            getItems();            // define options (if needed)            var options = {                // history & focus options are disabled on CodePen                history: false,                focus: false,                index: pos,                showAnimationDuration: 0,                hideAnimationDuration: 0            };            var gallery = new PhotoSwipe(pswpElement, PhotoSwipeUI_Default, items, options);            gallery.init();        }        /*---------------------------------------------*/

参考：

PhotoSwipe中文API(一)

PhotoSwipe.js 相册展示插件学习

移动web HTML5使用photoswipe模仿微信朋友圈图片放大浏览