<div class="box-nine"> <div class="progress"> <!--一整條進度條--> <div class="progress-bar"></div> <!--進度--> <div class="progress-circle"></div><!--控制點--> </div> <input type="text" value=""><!--顯示進度值--> </div>
簡單的寫一下樣式javascript
.progress{ width:200px; height:6px; background: #cccccc; border-radius: 6px; position: relative; display: inline-block; cursor: pointer; } .progress .progress-bar{ width:100px; height: 6px; position: absolute; background:red; border-radius: 6px; top:0; } .progress .progress-circle{ width:14px; height:14px; background: #ffffff; border:1px solid #ccc; box-shadow: 0 0 5px 0 #000 0.27; border-radius: 50%; position: absolute; top:-4px; cursor: pointer; left:98px; } input[type='text']{ width:47px; height:30px; line-height: 30px; }
看下簡單的靜態頁面效果css
接下來看實現html
第一步:引入jqueryhtml5
<script type="text/javascript" src="jquery.js"></script>
第二部:jqueryjava
var lastX, NewX, that, thewidth = 0; var auto = false;//控制是否能夠拖動的; false表示不能拖動 $('.box-nine').on('mousedown', '.progress-circle', function(e) { lastX = e.clientX; //鼠標按下時距離瀏覽器的x軸距離 e.preventDefault(); //阻止默認事件 that = $(this); //保存當前this thewidth = that.prev().width() || $(".progress-bar").width(); // 獲取當前進度的寬度,也就是紅色條的寬度 auto = true; //鼠標按下的時候設置爲true,容許拖動 }) $(document).on('mousemove', function (e) { //記住,這裏必定要綁定在document上,防止拖動過快形成問題 if (auto) { e.preventDefault(); NewX = e.clientX; //拖動後,從新獲取鼠標距離瀏覽器的x軸距離 var mcs = NewX - lastX; //由mcs的值大小肯定鼠標是向左滑動仍是右滑動; var differ = $(".progress").width() - $(".progress-circle").width(); //圓圈能拖動的最大距離 紅色進度條的最大寬度就是整個進度條200px,而圓圈能滑動的最大距離要減去自己的寬度 if (mcs > 0) {//判斷左滑仍是右滑 that.prev().css('width', mcs + thewidth < differ ? mcs + thewidth : $(".progress").width()); //每拖動一次,都要加上當前紅色條的寬度 紅色條寬度=每次的鼠標差+ 上一次紅色條寬度 that.css('left', mcs + thewidth < differ ? mcs + thewidth : differ); } else { that.prev().css('width', thewidth + mcs - that.width() > 0 ? thewidth + mcs - that.width() : 0); that.css('left', thewidth + mcs - that.width() > 0 ? thewidth + mcs - that.width() : 0); } var val = that.prev().width(); that.parents('.box-nine').find('input').val(Math.ceil(val / 2));//實時將值顯示在Input框 這裏是模擬音量 0-100的值 } }) $(document).on('mouseup', function(e) { if(auto) { auto = false;//鼠標鬆開不容許拖動 } })
$(".box-nine").on('click', '.progress', function(e) { //點擊進度條時,進度的變化 lastX = e.clientX; var offsetX = $(this).offset().left; $(this).find('.progress-bar').css('width', lastX - offsetX>$(this).width()?$(this).width():lastX-offsetX); $(this).find('.progress-circle').css('left', lastX - offsetX>$(this).width()- $(this).find('.progress-circle').width()?$(this).width()- $(this).find('.progress-circle').width():lastX-offsetX); var val =$(this).find('.progress-bar').width(); $(this).parents('.box-nine').find('input').val(Math.ceil(val / 2)); })
<div class="box-one" style="position:relative;margin-top:10px;"> <progress value="" max="100"> </progress> <!--h5 進度條--> <div class="progress-circle1"></div> <input type="text" value=""><!--顯示進度值--> </div>
progress{ background: #cccccc; width:202px; height:6px; border:1px solid #ddd; border-radius: 6px; cursor: pointer; position: relative; margin-right:10px; } progress::-moz-progress-bar { background: #ccc} progress::-webkit-progress-value { background: red; height:6px; border-radius: 6px 0 0 6px; position: absolute; top:-1px; } progress::-webkit-progress-bar { background: #ccc } .progress-circle1{ width:14px; height:14px; background: #ffffff; border:1px solid #ccc; box-shadow: 0 0 5px 0 #000 0.27; border-radius: 50%; position: absolute; top:15px; cursor: pointer; left:0px; }
此樣式不兼容谷歌喲;經過手動修改progress的樣式jquery
var lastX,offset, thats,thewidth=0; var auto=false; $(".box-one").on('mousedown','.progress-circle1',function(e){ lastX=e.clientX; e.preventDefault(); thats=$(this); thewidth=thats.prev().val() || $("progress").val(); auto=true; }) $(document).on('mousemove',function(e){ if(auto){ e.preventDefault(); newX=e.clientX; var mcs=newX-lastX; var differ=thats.prev().width()-thats.width(); if(mcs>0){ thats.prev().val(thewidth*2+mcs>$("progress").width()?$("progress").width()/2:(thewidth*2+mcs)/2); thats.css('left',mcs+thewidth*2<differ?mcs+thewidth*2:differ ); }else{ thats.prev().val( thewidth+ mcs/2>0?thewidth+ mcs/2:0); thats.css('left',thewidth*2 + mcs - thats.width()> 0 ? thewidth*2 + mcs - thats.width():0) } var val = thats.prev().val() || $("progress").val(); thats.parents('.box-one').find('input').val(Math.ceil(val ));//實時將值顯示在Input框 這裏是模擬音量 0-100的值 } }) $(document).on('mouseup', function(e) { if(auto) { auto = false;//鼠標鬆開不容許拖動 } }) $(".box-one").on('click', 'progress', function (e) { that=$(this); lastX = e.clientX; offset = $(this).offset().left; that.parent().find('.progress-circle1').css('left', lastX - offset>that.width() ? that.width()-$(".progress-circle1").width():lastX - offset); that.val((lastX - offset)/2); that.parent().find('input').val(Math.ceil((lastX - offset)/2)); })
詳細代碼:https://github.com/sulishibaobei/progress/tree/mastergit