强大的图片预览组件Viewer.js

news2024/11/18 7:26:20

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1、 Viewer.js简介

Viewer.js 是一款强大的图片查看器。我们通过Viewer.js 在页面上添加强大的图片查看功能，同时，这款优秀的插件配置操作起来也非常的方便。

Viewer.js分为2个版本，js版本和jquery版本，下载地址分别为

纯JS版本：https://github.com/fengyuanchen/viewerjs

jQuery 版本：GitHub - fengyuanchen/jquery-viewer: A jQuery plugin wrapper for Viewer.js.、

网上看到有说jquery版本有bug，最后选用啦js版本，demo截图大概如下：
​​
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在这里插入图片描述

2、Viewer.js支持的功能

支持移动设备触摸事件
支持响应式
支持放大/缩小
支持旋转(类似微博的图片旋转)
支持水平/垂直翻转
支持图片移动
支持键盘
支持全屏幻灯片模式(可做屏保)
支持缩略图
支持标题显示
支持多种自定义事件

3、Viewer.js的API

名称类型默认值说明
inline布尔值false启用 inline 模式
button布尔值true显示右上角关闭按钮(jQuery 版本无效)
navbar布尔值/整型true显示缩略图导航
title布尔值/整型true显示当前图片的标题(现实 alt 属性及图片尺寸)
toolbar布尔值/整型true显示工具栏
tooltip布尔值true显示缩放百分比
movable布尔值true图片是否可移动
zoomable布尔值true图片是否可缩放
rotatable布尔值true图片是否可旋转
scalable布尔值true图片是否可翻转
transition布尔值true使用 CSS3 过度
fullscreen布尔值true播放时是否全屏
keyboard布尔值true是否支持键盘
interval整型5000播放间隔，单位为毫秒
zoomRatio浮点型0.1鼠标滚动时的缩放比例
minZoomRatio浮点型0.01最小缩放比例
maxZoomRatio数字100最大缩放比例
zIndex数字2015设置图片查看器 modal 模式时的 z-index
zIndexInline数字0设置图片查看器 inline 模式时的 z-index
url字符串/函数src设置大图片的 url
build函数null回调函数，具体查看演示
built函数null回调函数，具体查看演示
show函数null回调函数，具体查看演示
shown函数null回调函数，具体查看演示
hide函数null回调函数，具体查看演示
hidden函数null回调函数，具体查看演示
view函数null回调函数，具体查看演示
viewed函数null回调函数，具体查看演示

4 使用方法

4.1 引入方式

js，jquery版本,直接文件引入
Javascript版：

<link rel="stylesheet" href="css/viewer.min.css"> 
<script src="js/viewer.min.js"></script>

jQuery版：

 <link rel="stylesheet" href="css/viewer.min.css">
 <script src="js/jquery.min.js"></script> 
 <script src="js/viewer.min.js"></script>

npm，直接install

npm install viewerjs

4.2 简单demo

这里为我用的是js版本，简单做了一个demo
html代码

<!doctype html>
<html lang="en" ng-app="pharosApp">
<head>
    <meta charset="utf-8">
    <meta http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate" />
    <meta http-equiv="Pragma" content="no-cache" />
    <meta http-equiv="Expires" content="0" />
    <title>图片预览</title>
    <link rel="stylesheet" href="viewer.min.css" />
    <script src="jquery.min.js"></script>
    <script type="text/javascript" src="viewer.min.js"></script>
    <style>
        #viewer {
            padding: 2%;
        }
        #viewer img {
            margin: 1%;
            width: 22.5%;
            height: 200px;
            object-fit:fill;
        }
    </style>
    <script>
        function previewImg() {
            var viewer = new Viewer(document.getElementById('viewer'), {
                button: true,
                inline: false,
                zoomable: true,
                title: true,
                tooltip: true,
                minZoomRatio: 0.5,
                maxZoomRatio: 100,
                movable: true,
                interval: 2000,
                navbar: true,
                loading: true,
                show: function () {
                    viewer.update();
                }
            });
            $("body").on("click", ".viewer-container", function (e) {
                viewer.hide()
            });
            $("body").on("click", ".viewer-canvas", function (e) {
                e.stopPropagation();
            });
            $("body").on("click", ".viewer-footer", function (e) {
                e.stopPropagation();
            });
            $("body").on("click", ".viewer-button", function (e) {
                e.stopPropagation();
            });
            $("body").on("click", ".viewer-tooltip", function (e) {
                e.stopPropagation();
            });
            $("body").on("click", ".viewer-player", function (e) {
                e.stopPropagation();
            });
        }
    </script>
</head>
<body>
    <div id="viewer">
        <img src="1.png" />
        <img src="2.png" />
        <img src="3.png" />
    </div>
</body>
</html>

5.viewer.js源码，js版本

viewer.min.css

/*!
 * Viewer.js v0.3.1
 * https://github.com/fengyuanchen/viewerjs
 *
 * Copyright (c) 2015-2016 Fengyuan Chen
 * Released under the MIT license
 *
 * Date: 2016-02-02T11:35:36.273Z
 */.viewer-container,.viewer-navbar{background-color:#000;overflow:hidden}.viewer-canvas,.viewer-container,.viewer-footer,.viewer-player{right:0;bottom:0;left:0}.viewer-button,.viewer-canvas,.viewer-container,.viewer-footer,.viewer-list,.viewer-navbar,.viewer-open,.viewer-title,.viewer-toolbar,.viewer-toolbar>li{overflow:hidden}.viewer-close:before,.viewer-flip-horizontal:before,.viewer-flip-vertical:before,.viewer-fullscreen-exit:before,.viewer-fullscreen:before,.viewer-next:before,.viewer-one-to-one:before,.viewer-play:before,.viewer-prev:before,.viewer-reset:before,.viewer-rotate-left:before,.viewer-rotate-right:before,.viewer-zoom-in:before,.viewer-zoom-out:before{font-size:0;line-height:0;display:block;width:20px;height:20px;color:transparent;background-image:url(data:image/png;base64,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);background-repeat:no-repeat}.viewer-zoom-in:before{content:'Zoom 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viewer.min.js

/*!
 * Viewer.js v0.3.1
 * https://github.com/fengyuanchen/viewerjs
 *
 * Copyright (c) 2015-2016 Fengyuan Chen
 * Released under the MIT license
 *
 * Date: 2016-02-02T11:35:52.542Z
 */
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