Heim >Web-Frontend >js-Tutorial >Erlernen Sie JavaScript-Mausreaktionsereignisse_Javascript-Kenntnisse
In diesem Artikel wird ein einfacher Maussimulationsfall als Referenz vorgestellt. Der spezifische Implementierungsinhalt lautet wie folgt
So implementieren Sie das Capture-Maus-Ereignis: Wenn die Maus gleitet, ermitteln Sie die Koordinaten der aktuellen Maus und binden Sie dann die Capture-Verschiebung in einen transparenten Bereich, sodass das Mausgleitmodell im simulierten transparenten Bereich implementiert werden kann.
Rendering:
HTML-Code:
<!DOCTYPE html> <html > <head> <meta charset="UTF-8"> <title> the mouse </title> <link rel="stylesheet" href="css/new.css"> </head> <body> <div class="main"> <div class="content"> <div class="content-nav-top"> <span onclick = 'koringz.createclick1(0)'>默认</span> <span onclick = 'koringz.createclick1(50)'>圆</span> </div> <div class="content-nav-left"> <span onclick = 'koringz.createclick2 (0.25) '>0.25</span> <span onclick = 'koringz.createclick2 (0.5) '>0.5</span> <span onclick = 'koringz.createclick2 (0.75)'>0.75</span> <span onclick = 'koringz.createclick2 (1) '>1</span> </div> <div class="box">鼠标感应器(the mouse sensor)</div> <div class="block"> <div class='block_case'></div> </div> </div> </div> <script type="text/javascript" src="js/demo.min/demo.min.js"></script> </body> </html>
CSS-Code:
* { margin: 0; padding: 0; box-sizing: border-box; } body { position: absolute; text-align: center; height: 100%; width: 100%; } .main{ position: relative; margin: 0 auto; height: 100%; background-color: rgb(48, 70, 82) } .main .content{ position:absolute; display: inline-block; top:50%; left:50%; margin-left: -300px; margin-top: -150px; width: 600px; height: 300px; line-height: 300px; /*overflow: hidden;*/ background: radial-gradient(ellipse farthest-corner, rgb(115, 176, 198) 0%, #888 100%); background: -webkit-radial-gradient(ellipse farthest-corner, rgb(115, 176, 198) 0%, #888 100%); box-shadow: 2px 3px 8px rgba(67, 50, 124 ,.6),0px 0px 8px rgba(67, 50, 124 ,.6); } .main .content .content-nav-top{ display: none; position: absolute; margin-top: -50px; height: 50px; width: 300px; } .main .content .content-nav-top >span{ display: block; float: left; font-size: 16px; font-weight: normal; margin-right:1px; width: 50px; height: 50px; line-height: 50px; background-color: rgba(251, 214, 146,.3); box-shadow: 0px 4px 13px rgb(222,222,222,1); cursor: pointer; } .main .content .content-nav-top >span:nth-child(1){ border-radius:0 ; } .main .content .content-nav-top >span:nth-child(2){ border-radius:50% ; } .main .content .content-nav-top >span:nth-child(3){ border-radius:0; } .main .content .content-nav-top >span:nth-child(4){ border-radius: 50% ; } .main .content .content-nav-left{ display: none; position: absolute; margin-left: -50px; width: 50px; height: 300px; } .main .content .content-nav-left >span{ display: block; font-size: 16px; font-weight: normal; margin-bottom:1px; width: 50px; height: 50px; line-height: 50px; background-color: rgb(85, 145, 140); box-shadow: 0px 4px 13px rgb(222,222,222,1); border-radius:50% 0 0 50% ; cursor: pointer; } .box{ position: relative; float: left; width: 49.9%; height: 100%; border-right-style: solid; border-right-width: 1px; border-right-color: rgba(211,211,211,.5); color:rgb(99, 84, 168); text-shadow: 0px 1px 0px #888,1px 0px 0px #888,0px 0px 1px #888; } .block{ float: right; width: 50%; height: 100%; }
JS-Code:
var koringz = (function(){ var x, y, getmain, getcontent, getbox, getblock, getblock_case, getnav_top, block_case_margin_top, block_case_margin_left, block_casetostring1, block_casetostring2, block_casesubstring1, block_casesubstring2, istouch; getmain = document.querySelector('.main'); getcontent = getmain.querySelector('.content'); getbox = getcontent.querySelector('.box'); getblock = getcontent.querySelector('.block'); getblock_case = getblock.querySelector('.block_case'); getnav_top = getcontent.querySelector('.content-nav-top'); getnav_left = getcontent.querySelector('.content-nav-left'); function get_box() { w_getbox_distance = getbox.offsetWidth; h_getbox_distance = getbox.offsetHeight; istouch = 'ontouchstart' in window; getbox.addEventListener(istouch?'touchmove':'mousemove',mouseevent,false); getbox.addEventListener(istouch?'touchmove':'mousemove',nav,false) } function nav () { return new_nav(); } var new_nav = function () { getnav_top.style.display = 'block'; getnav_left.style.display = 'block'; } function move_box() { getblock_case.style.width = '0px'; getblock_case.style.height = '0px'; block_case_margin_left = getblock_case.style.marginLeft = getblock.offsetWidth/2 + 'px';//子节点 block_case_margin_top = getblock_case.style.marginTop = getblock.offsetHeight/2 + 'px'; block_casetostring1 = block_case_margin_left.toString();//值转化为字符串 block_casetostring2 = block_case_margin_top.toString(); block_casesubstring1 = block_casetostring1.substring(0,3); block_casesubstring2 = block_casetostring2.substring(0,3); } var mouseevent = function () { mouseEvent(event); } function mouseEvent(e){ var zore = 0, val = 1; if(istouch){ x = e.touches[zore].pageX; y = e.touches[zore].pageY; e.preventDefault(); } else if(!istouch){ x = w_getbox_distance/2 != undefined ? e.offsetX:e.layerX; y = h_getbox_distance/2 != undefined ? e.offsetY:e.layerY; } if(val = true){ getblock_case.style.width = x + 'px';//获得了mouse划过的位置 getblock_case.style.height = y + 'px'; getblock_case.style.marginLeft = (block_casesubstring1-x/2) +'px'; getblock_case.style.marginTop = (block_casesubstring2-y/2) +'px'; getblock_case.style.backgroundColor = "rgba(147, 106, 77,1)"; } } (function (){ window.onload = function(){ move_box(); get_box() } })() var click =function () { this.borderradius = function(num) { if(typeof num == 'number'){ if(num == 0){ getblock_case.style.borderRadius = num; } else if(num > 0){ getblock_case.style.borderRadius = num +'%'; } else{ return false; } } } this.opacitas = function (num) { if(typeof num == 'number'){ getblock_case.style.opacity = num; } else{ return false; } } } var Click = new click(); return { createclick1 :Click.borderradius, createclick2 :Click.opacitas } })()
Die Mauspfeile können hier auch durch Ihre Lieblingssymbole ersetzt werden. Die Farbe des simulierten Mausbereichs kann auch frei geändert werden. Die Effekte des simulierten Bereichs können auch gepunktet, linear, animiert usw. sein. Spielen Sie es .
Das Obige ist eine detaillierte Einführung in JavaScript-Mausreaktionsereignisse. Ich hoffe, dass es für das Lernen aller hilfreich ist.