本文实例为大家分享了js实现鼠标滑动到某个div禁止滚动的具体代码,供大家参考,具体内容如下项目中碰到一个场景就是当鼠标滑倒某个div的时候,滑动鼠标页面不再滚动。这里主要是当鼠标滑动到该div时,监听滚轮事件并通过preventDefault()事件来阻止滚动事件,以下是例子eg:
#wrap {

position:absolute;

top:200px;

background:#000000;

font-size: 40px;

width:50vw;

text-align: center;

color: #ffffff;

line-height: 300px;

height:300px;
}
#wrap {

position:absolute;

top:200px;

background:#000000;

font-size: 40px;

width:50vw;

text-align: center;

color: #ffffff;

line-height: 300px;

height:300px;
}

鼠标移动进入该区域,页面禁止滚动


鼠标移动进入该区域,页面禁止滚动

window.onload = function () {

for (i = 0; i < 50; i++) {

var x = document.createElement('div');

x.innerHTML = "test
";

document.body.appendChild(x);

}


function $(x) {

return document.getElementById(x);

};

$("wrap").onmousewheel = function scrollWheel(e) {

var sl;

e = e || window.event;

if (navigator.userAgent.toLowerCase().indexOf('msie') >= 0) {

event.returnValue = false;

} else {

e.preventDefault();

};

};

if (navigator.userAgent.toLowerCase().indexOf('firefox') >= 0) {

//firefox支持onmousewheel

addEventListener('DOMMouseScroll',

function (e) {

var obj = e.target;

var onmousewheel;

while (obj) {

onmousewheel = obj.getAttribute('onmousewheel') || obj.onmousewheel;

if (onmousewheel) break;

if (obj.tagName == 'BODY') break;

obj = obj.parentNode;

};

if (onmousewheel) {

if (e.preventDefault) e.preventDefault();

e.returnValue = false; //禁止页面滚动

if (typeof obj.onmousewheel != 'function') {

//将onmousewheel转换成function

eval('window._tmpFun = function(event){' + onmousewheel + '}');

obj.onmousewheel = window._tmpFun;

window._tmpFun = null;

};

// 不直接执行是因为若onmousewheel(e)运行时间较长的话,会导致锁定滚动失效,使用setTimeout可避免

setTimeout(function () {

obj.onmousewheel(e);

},

1);

};

},

false);

};
}
window.onload = function () {

for (i = 0; i < 50; i++) {

var x = document.createElement('div');

x.innerHTML = "test
";

document.body.appendChild(x);

}


function $(x) {

return document.getElementById(x);

};

$("wrap").onmousewheel = function scrollWheel(e) {

var sl;

e = e || window.event;

if (navigator.userAgent.toLowerCase().indexOf('msie') >= 0) {

event.returnValue = false;

} else {

e.preventDefault();

};

};

if (navigator.userAgent.toLowerCase().indexOf('firefox') >= 0) {

//firefox支持onmousewheel

addEventListener('DOMMouseScroll',

function (e) {

var obj = e.target;

var onmousewheel;

while (obj) {

onmousewheel = obj.getAttribute('onmousewheel') || obj.onmousewheel;

if (onmousewheel) break;

if (obj.tagName == 'BODY') break;

obj = obj.parentNode;

};

if (onmousewheel) {

if (e.preventDefault) e.preventDefault();

e.returnValue = false; //禁止页面滚动

if (typeof obj.onmousewheel != 'function') {

//将onmousewheel转换成function

eval('window._tmpFun = function(event){' + onmousewheel + '}');

obj.onmousewheel = window._tmpFun;

window._tmpFun = null;

};

// 不直接执行是因为若onmousewheel(e)运行时间较长的话,会导致锁定滚动失效,使用setTimeout可避免

setTimeout(function () {

obj.onmousewheel(e);

},

1);

};

},

false);

};
}以上就是本文的全部内容,希望对大家的学习有所帮助。