HTML+CSS+JS模仿win10亮度调节效果
代码
<!doctype html> <html> <head> <meta charset="utf-8"> <title>模仿win10的亮度调节</title> <style> .control_bar{ height:200px; width:500px; border-bottom:3px solid #888888; } .control_bar_cursor{ height:25px; width:8px; background: #505151; border-radius:5px; margin-top:-12.5px; position:relative; top:0; left:0; } .control_bar_cursor:hover{ background:white; } #control_bar_mask{ margin-top:-203px; width:0px; } .mask{ position:fixed; bottom:0; top:0; left:0; right:0; background:black; z-index:-1; } </style> </head> <body> <div class="mask"></div> <div class="control_bar"></div> <div class="control_bar" style="border-bottom:3px solid #505151;" id="control_bar_mask"></div> <div class="control_bar_cursor"></div> </body> <script> window.onload = function(){ var control_bar = document.getElementsByClassName("control_bar")[0]; var control_bar_mask = document.getElementById("control_bar_mask"); var control_bar_cursor = document.getElementsByClassName("control_bar_cursor")[0]; var def_left = control_bar_cursor.offsetLeft; var mask = document.getElementsByClassName("mask")[0]; document.body.onmousedown = function(){ window.onmousemove = function(){ var cursor_X = event.clientX; var cursor_Y = event.clientY; if(cursor_X < def_left){ control_bar_cursor.style.left = 0; }else if(cursor_X > control_bar.offsetWidth + def_left){ control_bar_cursor.style.left = control_bar.offsetWidth; }else{ control_bar_cursor.style.left = cursor_X - def_left + "px"; } //亮度比 var proportion = parseInt(control_bar_cursor.offsetLeft - def_left) / parseInt(control_bar.offsetWidth - 1); control_bar_mask.style.width = proportion * control_bar.offsetWidth + "px"; mask.style.opacity = 1 - proportion; }; window.onmouseup = function(){ window.onmousemove = null; }; }; }; </script> </html>
1.将各个元素的样子写出来
这里为了方便好观察给body添加了一个背景颜色
html
<div class="control_bar"> </div> <div class="control_bar" style="border-bottom:3px solid #505151;" id="control_bar_mask> </div> <div class="control_bar_cursor"> </div>
css
body{ background:back; } .control_bar{ height:200px; width:500px; border-bottom:3px solid #888888; } .control_bar_cursor{ height:25px; width:8px; background: #505151; border-radius:5px; }
效果图
2. 将各个元素叠到一起
css
body{ background:black; } .control_bar{ height:200px; width:500px; border-bottom:3px solid #888888; } .control_bar_cursor{ height:25px; width:8px; background: #505151; border-radius:5px; margin-top:-12.5px; position:relative; top:0; left:0; } .control_bar_cursor:hover{ background:white; } #control_bar_mask{ margin-top:-203px; width:100px; }
这里为了显示遮罩效果把遮罩层的div宽度设小了
3. 添加js
js
window.onload = function(){ var control_bar = document.getElementsByClassName("control_bar")[0]; var control_bar_mask = document.getElementById("control_bar_mask"); var control_bar_cursor = document.getElementsByClassName("control_bar_cursor")[0]; var def_left = control_bar_cursor.offsetLeft; document.body.onmousedown = function(){ window.onmousemove = function(){ var cursor_X = event.clientX; var cursor_Y = event.clientY; if(cursor_X < def_left){ control_bar_cursor.style.left = 0; }else if(cursor_X > control_bar.offsetWidth + def_left){ control_bar_cursor.style.left = control_bar.offsetWidth; }else{ control_bar_cursor.style.left = cursor_X - def_left + "px"; } var proportion = parseInt(control_bar_cursor.offsetLeft - def_left) / parseInt(control_bar.offsetWidth - 1); control_bar_mask.style.width = proportion * control_bar.offsetWidth + "px"; }; window.onmouseup = function(){ window.onmousemove = null; }; }; };
4. 添加一个mask用控制条来控制其透明度达到亮度调节效果
<div class="mask"></div>
.mask{ position:fixed; bottom:0; top:0; left:0; right:0; background:black; z-index:-1; }
window.onload = function(){ var control_bar = document.getElementsByClassName("control_bar")[0]; var control_bar_mask = document.getElementById("control_bar_mask"); var control_bar_cursor = document.getElementsByClassName("control_bar_cursor")[0]; var def_left = control_bar_cursor.offsetLeft; var mask = document.getElementsByClassName("mask")[0]; document.body.onmousedown = function(){ window.onmousemove = function(){ var cursor_X = event.clientX; var cursor_Y = event.clientY; if(cursor_X < def_left){ control_bar_cursor.style.left = 0; }else if(cursor_X > control_bar.offsetWidth + def_left){ control_bar_cursor.style.left = control_bar.offsetWidth; }else{ control_bar_cursor.style.left = cursor_X - def_left + "px"; } //亮度比 var proportion = parseInt(control_bar_cursor.offsetLeft - def_left) / parseInt(control_bar.offsetWidth - 1); control_bar_mask.style.width = proportion * control_bar.offsetWidth + "px"; mask.style.opacity = 1 - proportion; }; window.onmouseup = function(){ window.onmousemove = null; }; }; };
总结
广告合作:本站广告合作请联系QQ:858582 申请时备注:广告合作(否则不回)
免责声明:本站资源来自互联网收集,仅供用于学习和交流,请遵循相关法律法规,本站一切资源不代表本站立场,如有侵权、后门、不妥请联系本站删除!
免责声明:本站资源来自互联网收集,仅供用于学习和交流,请遵循相关法律法规,本站一切资源不代表本站立场,如有侵权、后门、不妥请联系本站删除!
暂无评论...
更新日志
2024年11月22日
2024年11月22日
- RonaldBrautigam,PeterMasseursandConcertgebouwOrchestraAmsterdam-ShostakovichTheJazz
- 筷子兄弟《老男孩》[WAV+CUE][899M]
- 陈曦《寂寞在唱歌HQCD》2023头版限量编号[WAV+CUE][1G]
- 张惠妹《阿密特》NEW XRCD[WAV+CUE][455M]
- 邓伟标《西游记之悟空》24K金碟限量编号首版[低速原抓WAV+CUE]
- 群星《2024好听新歌40》AI调整音效【WAV分轨】
- 张梦弘《大城小爱HQ》头版限量编号[低速原抓WAV+CUE]
- 张敬轩《MY 1ST COLLECTION》2CD[WAV+CUE][1.7G]
- 张玮伽《夜归人HQⅡ》2024头版限量编号[WAV+CUE][523M]
- 证声音乐图书馆《夏至 爵士境地》[320K/MP3][70.37MB]
- 孙露《同名专辑》限量1:1母盘直刻[低速原抓WAV+CUE]
- 【宝丽金唱片】群星《鼓舞飞扬》WAV+CUE
- 莫扎特弗雷德沃夏克肖斯塔科维奇《钢琴五重奏》(DG24-96)FLAC
- 证声音乐图书馆《夏至 爵士境地》[FLAC/分轨][360.16MB]
- 证声音乐图书馆《日落琴声 x 弦乐》[320K/MP3][71.2MB]