559 lines
19 KiB
JavaScript
559 lines
19 KiB
JavaScript
(function ($) {
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// 当domReady的时候开始初始化
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$(function () {
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var $wrap = $('#uploader'),
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// 图片容器
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$queue = $('<ul class="filelist" id="filelist"></ul>')
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.appendTo($wrap.find('.queueList')),
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// 状态栏，包括进度和控制按钮
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$statusBar = $wrap.find('.statusBar'),
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// 文件总体选择信息。
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$info = $statusBar.find('.info'),
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// 上传按钮
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$upload = $wrap.find('.uploadBtn'),
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// 没选择文件之前的内容。
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$placeHolder = $wrap.find('.placeholder'),
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$progress = $statusBar.find('.progress').hide(),
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// 添加的文件数量
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fileCount = 0,
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// 添加的文件总大小
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fileSize = 0,
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// 优化retina, 在retina下这个值是2
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ratio = window.devicePixelRatio || 1,
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// 缩略图大小
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thumbnailWidth = 110 * ratio,
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thumbnailHeight = 110 * ratio,
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// 可能有pedding, ready, uploading, confirm, done.
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state = 'pedding',
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// 所有文件的进度信息，key为file id
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percentages = {},
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// 判断浏览器是否支持图片的base64
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isSupportBase64 = (function () {
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var data = new Image();
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var support = true;
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data.onload = data.onerror = function () {
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if (this.width != 1 || this.height != 1) {
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support = false;
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}
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}
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data.src = "data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///ywAAAAAAQABAAACAUwAOw==";
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return support;
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})(),
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// 检测是否已经安装flash，检测flash的版本
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flashVersion = (function () {
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var version;
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try {
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version = navigator.plugins[ 'Shockwave Flash' ];
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version = version.description;
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} catch (ex) {
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try {
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version = new ActiveXObject('ShockwaveFlash.ShockwaveFlash')
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.GetVariable('$version');
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} catch (ex2) {
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version = '0.0';
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}
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}
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version = version.match(/\d+/g);
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return parseFloat(version[ 0 ] + '.' + version[ 1 ], 10);
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})(),
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supportTransition = (function () {
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var s = document.createElement('p').style,
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r = 'transition' in s ||
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'WebkitTransition' in s ||
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'MozTransition' in s ||
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'msTransition' in s ||
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'OTransition' in s;
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s = null;
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return r;
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})(),
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// WebUploader实例
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uploader;
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if (!WebUploader.Uploader.support('flash') && WebUploader.browser.ie) {
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// flash 安装了但是版本过低。
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if (flashVersion) {
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(function (container) {
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window['expressinstallcallback'] = function (state) {
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switch (state) {
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case 'Download.Cancelled':
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alert('您取消了更新！')
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break;
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case 'Download.Failed':
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alert('安装失败')
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break;
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default:
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alert('安装已成功，请刷新！');
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break;
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}
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delete window['expressinstallcallback'];
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};
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var swf = './expressInstall.swf';
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// insert flash object
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var html = '<object type="application/' +
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'x-shockwave-flash" data="' + swf + '" ';
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if (WebUploader.browser.ie) {
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html += 'classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" ';
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}
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html += 'width="100%" height="100%" style="outline:0">' +
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'<param name="movie" value="' + swf + '" />' +
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'<param name="wmode" value="transparent" />' +
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'<param name="allowscriptaccess" value="always" />' +
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'</object>';
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container.html(html);
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})($wrap);
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// 压根就没有安转。
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} else {
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$wrap.html('<a href="http://www.adobe.com/go/getflashplayer" target="_blank" border="0"><img alt="get flash player" src="http://www.adobe.com/macromedia/style_guide/images/160x41_Get_Flash_Player.jpg" /></a>');
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}
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return;
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} else if (!WebUploader.Uploader.support()) {
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alert('Web Uploader 不支持您的浏览器！');
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return;
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}
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// 实例化
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uploader = WebUploader.create({
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pick: {
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id: '#filePicker',
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label: '点击选择图片'
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},
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dnd: '#dndArea',
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paste: '#uploader',
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swf: '../../dist/Uploader.swf',
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chunked: false,
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chunkSize: 512 * 1024,
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server: post_url,
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// runtimeOrder: 'flash',
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accept: {
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title: 'Images',
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extensions: 'gif,jpg,jpeg,bmp,png',
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mimeTypes: 'image/jpg,image/jpeg,image/png,image/gif'
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},
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// 禁掉全局的拖拽功能。这样不会出现图片拖进页面的时候，把图片打开。
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disableGlobalDnd: true,
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fileNumLimit: 300,
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fileSizeLimit: 200 * 1024 * 1024, // 200 M
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fileSingleSizeLimit: 50 * 1024 * 1024 // 50 M
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});
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// 拖拽时不接受 js, txt 文件。
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uploader.on('dndAccept', function (items) {
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var denied = false,
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len = items.length,
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i = 0,
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// 修改js类型
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unAllowed = 'text/plain;application/javascript ';
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for (; i < len; i++) {
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// 如果在列表里面
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if (~unAllowed.indexOf(items[ i ].type)) {
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denied = true;
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break;
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}
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}
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return !denied;
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});
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uploader.on('dialogOpen', function () {
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console.log('here');
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});
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uploader.on('filesQueued', function () {
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uploader.sort(function (a, b) {
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if (a.name < b.name)
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return -1;
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if (a.name > b.name)
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return 1;
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return 0;
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});
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});
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// 添加“添加文件”的按钮，
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uploader.addButton({
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id: '#filePicker2',
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label: '继续添加'
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});
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uploader.on('ready', function () {
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window.uploader = uploader;
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});
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// 当有文件添加进来时执行，负责view的创建
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function addFile(file) {
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var $li = $('<li id="' + file.id + '">' +
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'<p class="title">' + file.name + '</p>' +
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'<p class="imgWrap"></p>' +
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'<p class="progress"><span></span></p>' +
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'</li>'),
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$btns = $('<div class="file-panel">' +
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'<span class="cancel">删除</span>' +
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'<span class="rotateRight">向右旋转</span>' +
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'<span class="rotateLeft">向左旋转</span></div>').appendTo($li),
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$prgress = $li.find('p.progress span'),
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$wrap = $li.find('p.imgWrap'),
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$info = $('<p class="error"></p>'),
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showError = function (code) {
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switch (code) {
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case 'exceed_size':
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text = '文件大小超出';
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break;
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case 'interrupt':
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text = '上传暂停';
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break;
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default:
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text = '上传失败，请重试';
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break;
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}
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$info.text(text).appendTo($li);
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};
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if (file.getStatus() === 'invalid') {
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showError(file.statusText);
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} else {
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// @todo lazyload
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$wrap.text('预览中');
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uploader.makeThumb(file, function (error, src) {
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var img;
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if (error) {
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$wrap.text('不能预览');
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return;
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}
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if (isSupportBase64) {
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img = $('<img src="' + src + '">');
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$wrap.empty().append(img);
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} else {
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$.ajax('../../server/preview.php', {
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method: 'POST',
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data: src,
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dataType: 'json'
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}).done(function (response) {
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if (response.result) {
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img = $('<img src="' + response.result + '">');
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$wrap.empty().append(img);
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} else {
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$wrap.text("预览出错");
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}
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});
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}
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}, thumbnailWidth, thumbnailHeight);
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percentages[ file.id ] = [file.size, 0];
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file.rotation = 0;
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}
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file.on('statuschange', function (cur, prev) {
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if (prev === 'progress') {
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$prgress.hide().width(0);
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} else if (prev === 'queued') {
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}
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});
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$li.on('mouseenter', function () {
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$btns.stop().animate({height: 30});
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});
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$li.on('mouseleave', function () {
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$btns.stop().animate({height: 0});
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});
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$btns.on('click', 'span', function () {
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var index = $(this).index(),
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deg;
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switch (index) {
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case 0:
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uploader.removeFile(file);
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return;
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case 1:
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file.rotation += 90;
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break;
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case 2:
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file.rotation -= 90;
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break;
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}
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if (supportTransition) {
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deg = 'rotate(' + file.rotation + 'deg)';
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$wrap.css({
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'-webkit-transform': deg,
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'-mos-transform': deg,
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'-o-transform': deg,
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'transform': deg
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});
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} else {
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$wrap.css('filter', 'progid:DXImageTransform.Microsoft.BasicImage(rotation=' + (~~((file.rotation / 90) % 4 + 4) % 4) + ')');
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}
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});
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$li.appendTo($queue);
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//初始化排序选项
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var list = document.getElementById("filelist");
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new Sortable(list);
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//
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}
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function editFile( file ) {
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if(!file){return;}
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var $li = $( '<li>' +
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'<p class="title"></p>' +
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'<p class="imgWrap"><img src="'+file+'" draggable="false"></p>'+
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'<p class="progress"><span></span></p>' +
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'<input type="hidden" name="more_pic[]" value='+file+'></li>' ),
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$btns = $('<div class="file-panel"><span class="cancel" onclick="delete_li(this)">删除</span></div>').appendTo( $li ),
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$prgress = $li.find('p.progress span'),
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$wrap = $li.find( 'p.imgWrap' ),
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$info = $('<p class="error"></p>');
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$li.append( '<span class="success"></span>' );
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$li.on('mouseenter', function () {
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$btns.stop().animate({height: 30});
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});
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$li.on('mouseleave', function () {
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$btns.stop().animate({height: 0});
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});
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$li.appendTo( $queue );
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setState("ready");$statusBar.show();
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//初始化排序选项
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var list = document.getElementById("filelist");
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new Sortable(list);
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}
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//修改信息时传来的图片json集
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if(typeof(imgjson)=="undefined"){}else{
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for(var i in imgjson){
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editFile(imgjson[i]);
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}
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}
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// 负责view的销毁
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function removeFile(file) {
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var $li = $('#' + file.id);
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delete percentages[ file.id ];
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updateTotalProgress();
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$li.off().find('.file-panel').off().end().remove();
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}
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function updateTotalProgress() {
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var loaded = 0,
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total = 0,
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spans = $progress.children(),
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percent;
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$.each(percentages, function (k, v) {
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total += v[ 0 ];
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loaded += v[ 0 ] * v[ 1 ];
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});
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percent = total ? loaded / total : 0;
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spans.eq(0).text(Math.round(percent * 100) + '%');
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spans.eq(1).css('width', Math.round(percent * 100) + '%');
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updateStatus();
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}
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function updateStatus() {
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var text = '', stats;
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if (state === 'ready') {
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text = '选中' + fileCount + '张图片，共' +
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WebUploader.formatSize(fileSize) + '。';
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$info.html(text);
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}
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}
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function setState(val) {
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var file, stats;
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if (val === state) {
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return;
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}
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$upload.removeClass('state-' + state);
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$upload.addClass('state-' + val);
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state = val;
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switch (state) {
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case 'pedding':
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$placeHolder.removeClass('element-invisible');
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$queue.hide();
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$statusBar.addClass('element-invisible');
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uploader.refresh();
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break;
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case 'ready':
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$placeHolder.addClass('element-invisible');
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$('#filePicker2').removeClass('element-invisible');
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$queue.show();
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$statusBar.removeClass('element-invisible');
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uploader.refresh();
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break;
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case 'uploading':
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$('#filePicker2').addClass('element-invisible');
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$progress.show();
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$upload.text('暂停上传');
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break;
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case 'paused':
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$progress.show();
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$upload.text('继续上传');
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break;
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case 'confirm':
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$progress.hide();
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$('#filePicker2').removeClass('element-invisible');
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$upload.text('开始上传');
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stats = uploader.getStats();
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if (stats.successNum && !stats.uploadFailNum) {
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setState('finish');
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return;
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}
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break;
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case 'finish':
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stats = uploader.getStats();
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if (stats.successNum) {
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//alert('上传成功');
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} else {
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// 没有成功的图片，重设
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state = 'done';
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location.reload();
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}
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break;
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}
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updateStatus();
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}
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uploader.onUploadProgress = function (file, percentage) {
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var $li = $('#' + file.id),
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$percent = $li.find('.progress span');
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$percent.css('width', percentage * 100 + '%');
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percentages[ file.id ][ 1 ] = percentage;
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updateTotalProgress();
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};
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var successNum=0;
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var errorNum=0;
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//这里是上传成功后的操作
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uploader.on('uploadSuccess', function(file, result){
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var status=result.status;
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var info=result.info;
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var filepath=result.filepath;
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var $li = $('#' + file.id);
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if(status){
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successNum++;
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$li.append('<input type="hidden" name="more_pic[]" value="'+filepath+'"><span class="success"></span>');
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}else{
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errorNum++;
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$li.append('<p class="error">'+info+'</p>');
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}
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text = '共' + fileCount + '张，已成功上传' + successNum + '张，失败' + errorNum + '张';
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$info.html(text);
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})
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uploader.onFileQueued = function (file) {
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fileCount++;
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fileSize += file.size;
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if (fileCount === 1) {
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$placeHolder.addClass('element-invisible');
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$statusBar.show();
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}
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addFile(file);
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setState('ready');
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updateTotalProgress();
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};
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//删除选中的文件
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uploader.onFileDequeued = function (file) {
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fileCount--;
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fileSize -= file.size;
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//计算
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var lileng=$(".filelist li").length;
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if (!lileng) {
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setState('pedding');
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}
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removeFile(file);
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updateTotalProgress();
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};
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uploader.on('all', function (type) {
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var stats;
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switch (type) {
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case 'uploadFinished':
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setState('confirm');
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break;
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case 'startUpload':
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setState('uploading');
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break;
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case 'stopUpload':
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setState('paused');
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break;
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}
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});
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uploader.onError = function (code) {
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alert('Error: ' + code);
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};
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$upload.on('click', function () {
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if ($(this).hasClass('disabled')) {
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return false;
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}
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if (state === 'ready') {
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uploader.upload();
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} else if (state === 'paused') {
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uploader.upload();
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} else if (state === 'uploading') {
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uploader.stop();
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}
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});
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$info.on('click', '.retry', function () {
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uploader.retry();
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});
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$info.on('click', '.ignore', function () {
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alert('todo');
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});
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$upload.addClass('state-' + state);
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updateTotalProgress();
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});
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})(jQuery);
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//删除
|
||
function delete_li(obj){
|
||
$(obj).parent().parent().remove();
|
||
} |