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video.js 29KB

    /** * Created by JetBrains PhpStorm. * User: taoqili * Date: 12-2-20 * Time: 上午11:19 * To change this template use File | Settings | File Templates. */ (function(){ var video = {}, uploadVideoList = [], isModifyUploadVideo = false, uploadFile; window.onload = function(){ $focus($G("videoUrl")); initTabs(); initVideo(); initUpload(); }; /* 初始化tab标签 */ function initTabs(){ var tabs = $G('tabHeads').children; for (var i = 0; i < tabs.length; i++) { domUtils.on(tabs[i], "click", function (e) { var j, bodyId, target = e.target || e.srcElement; for (j = 0; j < tabs.length; j++) { bodyId = tabs[j].getAttribute('data-content-id'); if(tabs[j] == target){ domUtils.addClass(tabs[j], 'focus'); domUtils.addClass($G(bodyId), 'focus'); }else { domUtils.removeClasses(tabs[j], 'focus'); domUtils.removeClasses($G(bodyId), 'focus'); } } }); } } function initVideo(){ createAlignButton( ["videoFloat", "upload_alignment"] ); addUrlChangeListener($G("videoUrl")); addOkListener(); //编辑视频时初始化相关信息 (function(){ var img = editor.selection.getRange().getClosedNode(),url; if(img && img.className){ var hasFakedClass = (img.className == "edui-faked-video"), hasUploadClass = img.className.indexOf("edui-upload-video")!=-1; if(hasFakedClass || hasUploadClass) { $G("videoUrl").value = url = img.getAttribute("_url"); $G("videoWidth").value = img.width; $G("videoHeight").value = img.height; var align = domUtils.getComputedStyle(img,"float"), parentAlign = domUtils.getComputedStyle(img.parentNode,"text-align"); updateAlignButton(parentAlign==="center"?"center":align); } if(hasUploadClass) { isModifyUploadVideo = true; } } createPreviewVideo(url); })(); } /** * 监听确认和取消两个按钮事件,用户执行插入或者清空正在播放的视频实例操作 */ function addOkListener(){ dialog.onok = function(){ $G("preview").innerHTML = ""; var currentTab = findFocus("tabHeads","tabSrc"); switch(currentTab){ case "video": return insertSingle(); break; case "videoSearch": return insertSearch("searchList"); break; case "upload": return insertUpload(); break; } }; dialog.oncancel = function(){ $G("preview").innerHTML = ""; }; } /** * 依据传入的align值更新按钮信息 * @param align */ function updateAlignButton( align ) { var aligns = $G( "videoFloat" ).children; for ( var i = 0, ci; ci = aligns[i++]; ) { if ( ci.getAttribute( "name" ) == align ) { if ( ci.className !="focus" ) { ci.className = "focus"; } } else { if ( ci.className =="focus" ) { ci.className = ""; } } } } /** * 将单个视频信息插入编辑器中 */ function insertSingle(){ var width = $G("videoWidth"), height = $G("videoHeight"), url=$G('videoUrl').value, align = findFocus("videoFloat","name"); if(!url) return false; if ( !checkNum( [width, height] ) ) return false; editor.execCommand('insertvideo', { url: convert_url(url), width: width.value, height: height.value, align: align }, isModifyUploadVideo ? 'upload':null); } /** * 将元素id下的所有代表视频的图片插入编辑器中 * @param id */ function insertSearch(id){ var imgs = domUtils.getElementsByTagName($G(id),"img"), videoObjs=[]; for(var i=0,img; img=imgs[i++];){ if(img.getAttribute("selected")){ videoObjs.push({ url:img.getAttribute("ue_video_url"), width:420, height:280, align:"none" }); } } editor.execCommand('insertvideo',videoObjs); } /** * 找到id下具有focus类的节点并返回该节点下的某个属性 * @param id * @param returnProperty */ function findFocus( id, returnProperty ) { var tabs = $G( id ).children, property; for ( var i = 0, ci; ci = tabs[i++]; ) { if ( ci.className=="focus" ) { property = ci.getAttribute( returnProperty ); break; } } return property; } function convert_url(url){ if ( !url ) return ''; url = utils.trim(url) .replace(/v\.youku\.com\/v_show\/id_([\w\-=]+)\.html/i, 'player.youku.com/player.php/sid/$1/v.swf') .replace(/(www\.)?youtube\.com\/watch\?v=([\w\-]+)/i, "www.youtube.com/v/$2") .replace(/youtu.be\/(\w+)$/i, "www.youtube.com/v/$1") .replace(/v\.ku6\.com\/.+\/([\w\.]+)\.html.*$/i, "player.ku6.com/refer/$1/v.swf") .replace(/www\.56\.com\/u\d+\/v_([\w\-]+)\.html/i, "player.56.com/v_$1.swf") .replace(/www.56.com\/w\d+\/play_album\-aid\-\d+_vid\-([^.]+)\.html/i, "player.56.com/v_$1.swf") .replace(/v\.pps\.tv\/play_([\w]+)\.html.*$/i, "player.pps.tv/player/sid/$1/v.swf") .replace(/www\.letv\.com\/ptv\/vplay\/([\d]+)\.html.*$/i, "i7.imgs.letv.com/player/swfPlayer.swf?id=$1&autoplay=0") .replace(/www\.tudou\.com\/programs\/view\/([\w\-]+)\/?/i, "www.tudou.com/v/$1") .replace(/v\.qq\.com\/cover\/[\w]+\/[\w]+\/([\w]+)\.html/i, "static.video.qq.com/TPout.swf?vid=$1") .replace(/v\.qq\.com\/.+[\?\&]vid=([^&]+).*$/i, "static.video.qq.com/TPout.swf?vid=$1") .replace(/my\.tv\.sohu\.com\/[\w]+\/[\d]+\/([\d]+)\.shtml.*$/i, "share.vrs.sohu.com/my/v.swf&id=$1"); return url; } /** * 检测传入的所有input框中输入的长宽是否是正数 * @param nodes input框集合, */ function checkNum( nodes ) { for ( var i = 0, ci; ci = nodes[i++]; ) { var value = ci.value; if ( !isNumber( value ) && value) { alert( lang.numError ); ci.value = ""; ci.focus(); return false; } } return true; } /** * 数字判断 * @param value */ function isNumber( value ) { return /(0|^[1-9]\d*$)/.test( value ); } /** * 创建图片浮动选择按钮 * @param ids */ function createAlignButton( ids ) { for ( var i = 0, ci; ci = ids[i++]; ) { var floatContainer = $G( ci ), nameMaps = {"none":lang['default'], "left":lang.floatLeft, "right":lang.floatRight, "center":lang.block}; for ( var j in nameMaps ) { var div = document.createElement( "div" ); div.setAttribute( "name", j ); if ( j == "none" ) div.className="focus"; div.style.cssText = "background:url(images/" + j + "_focus.jpg);"; div.setAttribute( "title", nameMaps[j] ); floatContainer.appendChild( div ); } switchSelect( ci ); } } /** * 选择切换 * @param selectParentId */ function switchSelect( selectParentId ) { var selects = $G( selectParentId ).children; for ( var i = 0, ci; ci = selects[i++]; ) { domUtils.on( ci, "click", function () { for ( var j = 0, cj; cj = selects[j++]; ) { cj.className = ""; cj.removeAttribute && cj.removeAttribute( "class" ); } this.className = "focus"; } ) } } /** * 监听url改变事件 * @param url */ function addUrlChangeListener(url){ if (browser.ie) { url.onpropertychange = function () { createPreviewVideo( this.value ); } } else { url.addEventListener( "input", function () { createPreviewVideo( this.value ); }, false ); } } /** * 根据url生成视频预览 * @param url */ function createPreviewVideo(url){ if ( !url )return; var conUrl = convert_url(url); conUrl = utils.unhtmlForUrl(conUrl); $G("preview").innerHTML = '<div class="previewMsg"><span>'+lang.urlError+'</span></div>'+ '<embed class="previewVideo" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer"' + ' src="' + conUrl + '"' + ' width="' + 420 + '"' + ' height="' + 280 + '"' + ' wmode="transparent" play="true" loop="false" menu="false" allowscriptaccess="never" allowfullscreen="true" >' + '</embed>'; } /* 插入上传视频 */ function insertUpload(){ var videoObjs=[], uploadDir = editor.getOpt('videoUrlPrefix'), width = parseInt($G('upload_width').value, 10) || 420, height = parseInt($G('upload_height').value, 10) || 280, align = findFocus("upload_alignment","name") || 'none'; for(var key in uploadVideoList) { var file = uploadVideoList[key]; videoObjs.push({ url: uploadDir + file.url, width:width, height:height, align:align }); } var count = uploadFile.getQueueCount(); if (count) { $('.info', '#queueList').html('<span style="color:red;">' + '还有2个未上传文件'.replace(/[\d]/, count) + '</span>'); return false; } else { editor.execCommand('insertvideo', videoObjs, 'upload'); } } /*初始化上传标签*/ function initUpload(){ uploadFile = new UploadFile('queueList'); } /* 上传附件 */ function UploadFile(target) { this.$wrap = target.constructor == String ? $('#' + target) : $(target); this.init(); } UploadFile.prototype = { init: function () { this.fileList = []; this.initContainer(); this.initUploader(); }, initContainer: function () { this.$queue = this.$wrap.find('.filelist'); }, /* 初始化容器 */ initUploader: function () { var _this = this, $ = jQuery, // just in case. Make sure it's not an other libaray. $wrap = _this.$wrap, // 图片容器 $queue = $wrap.find('.filelist'), // 状态栏,包括进度和控制按钮 $statusBar = $wrap.find('.statusBar'), // 文件总体选择信息。 $info = $statusBar.find('.info'), // 上传按钮 $upload = $wrap.find('.uploadBtn'), // 上传按钮 $filePickerBtn = $wrap.find('.filePickerBtn'), // 上传按钮 $filePickerBlock = $wrap.find('.filePickerBlock'), // 没选择文件之前的内容。 $placeHolder = $wrap.find('.placeholder'), // 总体进度条 $progress = $statusBar.find('.progress').hide(), // 添加的文件数量 fileCount = 0, // 添加的文件总大小 fileSize = 0, // 优化retina, 在retina下这个值是2 ratio = window.devicePixelRatio || 1, // 缩略图大小 thumbnailWidth = 113 * ratio, thumbnailHeight = 113 * ratio, // 可能有pedding, ready, uploading, confirm, done. state = '', // 所有文件的进度信息,key为file id percentages = {}, supportTransition = (function () { var s = document.createElement('p').style, r = 'transition' in s || 'WebkitTransition' in s || 'MozTransition' in s || 'msTransition' in s || 'OTransition' in s; s = null; return r; })(), // WebUploader实例 uploader, actionUrl = editor.getActionUrl(editor.getOpt('videoActionName')), fileMaxSize = editor.getOpt('videoMaxSize'), acceptExtensions = (editor.getOpt('videoAllowFiles') || []).join('').replace(/\./g, ',').replace(/^[,]/, '');; if (!WebUploader.Uploader.support()) { $('#filePickerReady').after($('<div>').html(lang.errorNotSupport)).hide(); return; } else if (!editor.getOpt('videoActionName')) { $('#filePickerReady').after($('<div>').html(lang.errorLoadConfig)).hide(); return; } uploader = _this.uploader = WebUploader.create({ pick: { id: '#filePickerReady', label: lang.uploadSelectFile }, swf: '../../third-party/webuploader/Uploader.swf', server: actionUrl, fileVal: editor.getOpt('videoFieldName'), duplicate: true, fileSingleSizeLimit: fileMaxSize, compress: false }); uploader.addButton({ id: '#filePickerBlock' }); uploader.addButton({ id: '#filePickerBtn', label: lang.uploadAddFile }); setState('pedding'); // 当有文件添加进来时执行,负责view的创建 function addFile(file) { var $li = $('<li id="' + file.id + '">' + '<p class="title">' + file.name + '</p>' + '<p class="imgWrap"></p>' + '<p class="progress"><span></span></p>' + '</li>'), $btns = $('<div class="file-panel">' + '<span class="cancel">' + lang.uploadDelete + '</span>' + '<span class="rotateRight">' + lang.uploadTurnRight + '</span>' + '<span class="rotateLeft">' + lang.uploadTurnLeft + '</span></div>').appendTo($li), $prgress = $li.find('p.progress span'), $wrap = $li.find('p.imgWrap'), $info = $('<p class="error"></p>').hide().appendTo($li), showError = function (code) { switch (code) { case 'exceed_size': text = lang.errorExceedSize; break; case 'interrupt': text = lang.errorInterrupt; break; case 'http': text = lang.errorHttp; break; case 'not_allow_type': text = lang.errorFileType; break; default: text = lang.errorUploadRetry; break; } $info.text(text).show(); }; if (file.getStatus() === 'invalid') { showError(file.statusText); } else { $wrap.text(lang.uploadPreview); if ('|png|jpg|jpeg|bmp|gif|'.indexOf('|'+file.ext.toLowerCase()+'|') == -1) { $wrap.empty().addClass('notimage').append('<i class="file-preview file-type-' + file.ext.toLowerCase() + '"></i>' + '<span class="file-title">' + file.name + '</span>'); } else { if (browser.ie && browser.version <= 7) { $wrap.text(lang.uploadNoPreview); } else { uploader.makeThumb(file, function (error, src) { if (error || !src || (/^data:/.test(src) && browser.ie && browser.version <= 7)) { $wrap.text(lang.uploadNoPreview); } else { var $img = $('<img src="' + src + '">'); $wrap.empty().append($img); $img.on('error', function () { $wrap.text(lang.uploadNoPreview); }); } }, thumbnailWidth, thumbnailHeight); } } percentages[ file.id ] = [ file.size, 0 ]; file.rotation = 0; /* 检查文件格式 */ if (!file.ext || acceptExtensions.indexOf(file.ext.toLowerCase()) == -1) { showError('not_allow_type'); uploader.removeFile(file); } } file.on('statuschange', function (cur, prev) { if (prev === 'progress') { $prgress.hide().width(0); } else if (prev === 'queued') { $li.off('mouseenter mouseleave'); $btns.remove(); } // 成功 if (cur === 'error' || cur === 'invalid') { showError(file.statusText); percentages[ file.id ][ 1 ] = 1; } else if (cur === 'interrupt') { showError('interrupt'); } else if (cur === 'queued') { percentages[ file.id ][ 1 ] = 0; } else if (cur === 'progress') { $info.hide(); $prgress.css('display', 'block'); } else if (cur === 'complete') { } $li.removeClass('state-' + prev).addClass('state-' + cur); }); $li.on('mouseenter', function () { $btns.stop().animate({height: 30}); }); $li.on('mouseleave', function () { $btns.stop().animate({height: 0}); }); $btns.on('click', 'span', function () { var index = $(this).index(), deg; switch (index) { case 0: uploader.removeFile(file); return; case 1: file.rotation += 90; break; case 2: file.rotation -= 90; break; } if (supportTransition) { deg = 'rotate(' + file.rotation + 'deg)'; $wrap.css({ '-webkit-transform': deg, '-mos-transform': deg, '-o-transform': deg, 'transform': deg }); } else { $wrap.css('filter', 'progid:DXImageTransform.Microsoft.BasicImage(rotation=' + (~~((file.rotation / 90) % 4 + 4) % 4) + ')'); } }); $li.insertBefore($filePickerBlock); } // 负责view的销毁 function removeFile(file) { var $li = $('#' + file.id); delete percentages[ file.id ]; updateTotalProgress(); $li.off().find('.file-panel').off().end().remove(); } function updateTotalProgress() { var loaded = 0, total = 0, spans = $progress.children(), percent; $.each(percentages, function (k, v) { total += v[ 0 ]; loaded += v[ 0 ] * v[ 1 ]; }); percent = total ? loaded / total : 0; spans.eq(0).text(Math.round(percent * 100) + '%'); spans.eq(1).css('width', Math.round(percent * 100) + '%'); updateStatus(); } function setState(val, files) { if (val != state) { var stats = uploader.getStats(); $upload.removeClass('state-' + state); $upload.addClass('state-' + val); switch (val) { /* 未选择文件 */ case 'pedding': $queue.addClass('element-invisible'); $statusBar.addClass('element-invisible'); $placeHolder.removeClass('element-invisible'); $progress.hide(); $info.hide(); uploader.refresh(); break; /* 可以开始上传 */ case 'ready': $placeHolder.addClass('element-invisible'); $queue.removeClass('element-invisible'); $statusBar.removeClass('element-invisible'); $progress.hide(); $info.show(); $upload.text(lang.uploadStart); uploader.refresh(); break; /* 上传中 */ case 'uploading': $progress.show(); $info.hide(); $upload.text(lang.uploadPause); break; /* 暂停上传 */ case 'paused': $progress.show(); $info.hide(); $upload.text(lang.uploadContinue); break; case 'confirm': $progress.show(); $info.hide(); $upload.text(lang.uploadStart); stats = uploader.getStats(); if (stats.successNum && !stats.uploadFailNum) { setState('finish'); return; } break; case 'finish': $progress.hide(); $info.show(); if (stats.uploadFailNum) { $upload.text(lang.uploadRetry); } else { $upload.text(lang.uploadStart); } break; } state = val; updateStatus(); } if (!_this.getQueueCount()) { $upload.addClass('disabled') } else { $upload.removeClass('disabled') } } function updateStatus() { var text = '', stats; if (state === 'ready') { text = lang.updateStatusReady.replace('_', fileCount).replace('_KB', WebUploader.formatSize(fileSize)); } else if (state === 'confirm') { stats = uploader.getStats(); if (stats.uploadFailNum) { text = lang.updateStatusConfirm.replace('_', stats.successNum).replace('_', stats.successNum); } } else { stats = uploader.getStats(); text = lang.updateStatusFinish.replace('_', fileCount). replace('_KB', WebUploader.formatSize(fileSize)). replace('_', stats.successNum); if (stats.uploadFailNum) { text += lang.updateStatusError.replace('_', stats.uploadFailNum); } } $info.html(text); } uploader.on('fileQueued', function (file) { fileCount++; fileSize += file.size; if (fileCount === 1) { $placeHolder.addClass('element-invisible'); $statusBar.show(); } addFile(file); }); uploader.on('fileDequeued', function (file) { fileCount--; fileSize -= file.size; removeFile(file); updateTotalProgress(); }); uploader.on('filesQueued', function (file) { if (!uploader.isInProgress() && (state == 'pedding' || state == 'finish' || state == 'confirm' || state == 'ready')) { setState('ready'); } updateTotalProgress(); }); uploader.on('all', function (type, files) { switch (type) { case 'uploadFinished': setState('confirm', files); break; case 'startUpload': /* 添加额外的GET参数 */ var params = utils.serializeParam(editor.queryCommandValue('serverparam')) || '', url = utils.formatUrl(actionUrl + (actionUrl.indexOf('?') == -1 ? '?':'&') + 'encode=utf-8&' + params); uploader.option('server', url); setState('uploading', files); break; case 'stopUpload': setState('paused', files); break; } }); uploader.on('uploadBeforeSend', function (file, data, header) { //这里可以通过data对象添加POST参数 header['X_Requested_With'] = 'XMLHttpRequest'; }); uploader.on('uploadProgress', function (file, percentage) { var $li = $('#' + file.id), $percent = $li.find('.progress span'); $percent.css('width', percentage * 100 + '%'); percentages[ file.id ][ 1 ] = percentage; updateTotalProgress(); }); uploader.on('uploadSuccess', function (file, ret) { var $file = $('#' + file.id); try { var responseText = (ret._raw || ret), json = utils.str2json(responseText); if (json.state == 'SUCCESS') { uploadVideoList.push({ 'url': json.url, 'type': json.type, 'original':json.original }); $file.append('<span class="success"></span>'); } else { $file.find('.error').text(json.state).show(); } } catch (e) { $file.find('.error').text(lang.errorServerUpload).show(); } }); uploader.on('uploadError', function (file, code) { }); uploader.on('error', function (code, file) { if (code == 'Q_TYPE_DENIED' || code == 'F_EXCEED_SIZE') { addFile(file); } }); uploader.on('uploadComplete', function (file, ret) { }); $upload.on('click', function () { if ($(this).hasClass('disabled')) { return false; } if (state === 'ready') { uploader.upload(); } else if (state === 'paused') { uploader.upload(); } else if (state === 'uploading') { uploader.stop(); } }); $upload.addClass('state-' + state); updateTotalProgress(); }, getQueueCount: function () { var file, i, status, readyFile = 0, files = this.uploader.getFiles(); for (i = 0; file = files[i++]; ) { status = file.getStatus(); if (status == 'queued' || status == 'uploading' || status == 'progress') readyFile++; } return readyFile; }, refresh: function(){ this.uploader.refresh(); } }; })();
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scrollfix.js 7.0KB

    (function($) { //URI:http://caibaojian.com/scrollfix //author:caibaojian //website:http://caibaojian.com //descirption:scroll and fixed some div $.fn.scrollFix = function(options) { return this.each(function() { var opts = $.extend({}, $.fn.scrollFix.defaultOptions, options); var obj = $(this), base = this, selfTop = 0, selfLeft = 0, toTop = 0, parentOffsetLeft = 0, parentOffsetTop = 0, outerHeight, outerWidth, objWidth = 0, placeholder = jQuery('<div>'), //创建一个jquery对象 optsTop = opts.distanceTop, //定义到顶部的高度 endfix = 0; //开始停止固定的位置 var originalPosition; var originalOffsetTop; var originalZIndex; var lastOffsetLeft = -1; var isUnfixed = true; //如果没有找到节点,不进行处理 if (obj.length <= 0) { return; } if (lastOffsetLeft == -1) { originalZIndex = obj.css('z-index'); position = obj.css('position'); originalPosition = obj.css('position'); originalOffsetTop = obj.css('top'); } var zIndex = obj.css('zIndex'); if (opts.zIndex != 0) { zIndex = opts.zIndex; } //获取相对定位或者绝对定位的父类 var parents = obj.parent(); var Position = parents.css('position'); while (!/^relative|absolute$/i.test(Position)) { //检测浮动元素的父类元素定位为'relative'或者'absolute',是的话退出,否则的话,执行循环,继续寻找它的父类 parents = parents.parent(); Position = parents.css('position'); if (/^body|html$/i.test(parents[0].tagName)) break; //假如父类元素的标签为body或者HTML,说明没有找到父类为以上的定位,退出循环 } var ie6 = !-[1, ] && !window.XMLHttpRequest; //兼容IE6 var resizeWindow = false; function resetScroll() { setUnfixed(); selfTop = obj.offset().top; //对象距离顶部高度 selfLeft = obj.offset().left; //对象距离左边宽度 outerHeight = obj.outerHeight(); //对象高度 outerHeight = parseFloat(outerHeight) + parseFloat(obj.css('marginBottom').replace(/auto/, 0)); outerWidth = obj.outerWidth(); //对象外宽度 // objWidth = obj.width(); objWidth = obj.outerWidth(true); var documentHeight = $(document).height(); //文档高度 var startTop = $(opts.startTop), //开始浮动固定对象 startBottom = $(opts.startBottom), toBottom, //停止滚动位置距离底部的高度 ScrollHeight; //对象滚动的高度 //计算父类偏移值 if (/^body|html$/i.test(parents[0].tagName)) { //当父类元素非body或者HTML时,说明找到了一个父类为'relative'或者'absolute'的元素,得出它的偏移高度 parentOffsetTop = 0, parentOffsetLeft = 0; } else { parentOffsetLeft = parents.offset().left, parentOffsetTop = parents.offset().top; } // 计算父节点的上边到顶部距离 // 如果 body 有 top 属性, 消除这些位移 var bodyToTop = parseInt(jQuery('body').css('top'), 10); if (!isNaN(bodyToTop)) { optsTop += bodyToTop; } //计算停在底部的距离 if (!isNaN(opts.endPos)) { toBottom = opts.endPos; } else { toBottom = parseFloat(documentHeight - $(opts.endPos).offset().top); } //计算需要滚动的高度以及停止滚动的高度 ScrollHeight = parseFloat(documentHeight - toBottom - optsTop), endfix = parseFloat(ScrollHeight - outerHeight); //计算顶部的距离值 if (startTop[0]) { var startTopOffset = startTop.offset(), startTopPos = startTopOffset.top; selfTop = startTopPos; } if (startBottom[0]) { var startBottomOffset = startBottom.offset(), startBottomPos = startBottomOffset.top, startBottomHeight = startBottom.outerHeight(); selfTop = parseFloat(startBottomPos + startBottomHeight); } toTop = selfTop - optsTop; toTop = (toTop > 0) ? toTop : 0; var selfBottom = documentHeight - selfTop - outerHeight; //如果滚动停在底部的值不为0,并且自身到底部的高度小于上面这个值,不执行浮动固定 if ((toBottom != 0) && (selfBottom <= toBottom)) { return; } } function setUnfixed() { if (!isUnfixed) { lastOffsetLeft = -1; placeholder.css("display", "none"); obj.css({ 'z-index': originalZIndex, 'width': '', 'position': originalPosition, 'left': '', 'top': originalOffsetTop, 'margin-left': '' }); obj.removeClass('scrollfixed'); isUnfixed = true; } } function onScroll() { lastOffsetLeft = 1; var ScrollTop = $(window).scrollTop(); if (opts.bottom != -1) { ScrollTop = ScrollTop + $(window).height() - outerHeight - opts.bottom; } if (ScrollTop > toTop && (ScrollTop < endfix)) { if (ie6) { //IE6则使用这个样式 obj.addClass(opts.baseClassName).css({ "z-index": zIndex, "position": "absolute", "top": opts.bottom == -1 ? ScrollTop + optsTop - parentOffsetTop : ScrollTop - parentOffsetTop, "bottom": 'auto', "left": selfLeft - parentOffsetLeft, 'width': objWidth }) } else { obj.addClass(opts.baseClassName).css({ "z-index": zIndex, "position": "fixed", "top": opts.bottom == -1 ? optsTop : '', "bottom": opts.bottom == -1 ? '' : opts.bottom, "left": selfLeft, "width": objWidth }); } placeholder.css({ 'height': outerHeight, 'width': outerWidth, 'display': 'block' }).insertBefore(obj); } else if (ScrollTop >= endfix) { obj.addClass(opts.baseClassName).css({ "z-index": zIndex, "position": "absolute", "top": endfix - parentOffsetTop + optsTop, 'bottom': '', "left": selfLeft - parentOffsetLeft, "width": objWidth }); placeholder.css({ 'height': outerHeight, 'width': outerWidth, 'display': 'block' }).insertBefore(obj) } else { obj.removeClass(opts.baseClassName).css({ "z-index": originalZIndex, "position": "static", "top": "", "bottom": "", "left": "" }); placeholder.remove() } } var Timer = 0; // if (isUnfixed) { resetScroll(); // } $(window).on("scroll", function() { if (Timer) { clearTimeout(Timer); } Timer = setTimeout(onScroll, 0); }); // 当发现调整屏幕大小时,重新执行代码 $(window).on("resize", function() { if (Timer) { clearTimeout(Timer); } Timer = setTimeout(function() { isUnfixed = false; resetScroll(); onScroll(); }, 0); }); }) } $.fn.scrollFix.defaultOptions = { startTop: null, //滑到这个位置顶部时开始浮动,默认为空 startBottom: null, //滑到这个位置末端开始浮动,默认为空 distanceTop: 0, //固定在顶部的高度 endPos: 0, //停靠在底部的位置,可以为jquery对象 bottom: -1, //底部位置 zIndex: 0, //z-index值 baseClassName: 'scrollfixed' //开始固定时添加的类 }; })(jQuery);