Question

我已经搜索了好几个小时但似乎无法找到答案。我尝试使用此代码集https://codepen.io/Nharox/pen/akgEQm来处理图片和链接，但有两件事情无效。一个是光标的位置与浏览器或鼠标滚轮滚动后鼠标指针的垂直位置不匹配，另一个是单击链接无效。我似乎无法弄明白为什么。

<body>
<div class="cursor hidden">
    <div class="cross">
        <div class="b b1"></div>
        <div class="b b2"></div>
    </div>
    <svg class="circle" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" preserveAspectRatio="xMidYMid" width="52" height="52" viewBox="0 0 52 52">
        <path d="M1,26a25,25 0 1,0 50,0a25,25 0 1,0 -50,0"/>
    </svg>
</div>

链接

<div class="myrow">
    <div class="myrow__box">
        <a href="/link-to-page"><img alt="" src="/images/myimage.jpg" /></a>
    </div>
</div>

SCSS

.cursor {
position: absolute;
z-index: 5;
width: 50px;
height: 50px;
opacity: 0;
transform: translate3d(-50%, -50%, 0) scale(.9) rotate(135deg);
transition: opacity 0.5s, transform 0.5s;
pointer-events: none;
&:before, &:after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 3px;
    height: 3px;
    background-color: white;
    transition: width 0.5s;
}
&:before {
    transform: translate3d(-50%, -50%, 0);
}
&:after {
    transform: translate3d(-50%, -50%, 0) rotate(90deg);
    transform-origin: center;
}
svg {
    fill: transparent;
    stroke: white;
    stroke-width: 3;
    stroke-dasharray: 160;
    stroke-dashoffset: 160;
    overflow: visible;
    transition: stroke-dashoffset 0.5s;
}
&-is-visible {
    opacity: 1;
    transform: translate3d(-50%, -50%, 0) scale(1) rotate(0deg);
    &:before, &:after {
        width: 22px;
    }
    svg {
        stroke-dashoffset: 0;
    }
}
}
.myrow {
display: block;
max-width: 100%;
margin: 0 auto;
&__box {
    cursor: none; 
    position: relative;
    height: auto;
    transform: scale(1);
    &:active {
        &:before {
            background-color: rgba(black, 0.15);
        }
    }
    &:before {
        content: '';
        position: absolute;
        z-index: 1;
        top: 0;
        bottom: 0;
        left: 0;
        right: 0;
        background-color: rgba(black, 0);
        transition: background-color 0.3s;
    }
}
}

JS

(function showCursor() {
'use strict';
// Variables
var boxes = document.querySelectorAll('.myrow__box'),
    cursor = document.querySelector('.cursor'),
    boxPos = [];
// Get coordinates for the current cursor position
function getPos(e, el) {
    var xPos = 0,
        yPos = 0;
    xPos = (el.offsetLeft - el.scrollLeft + el.clientLeft);
    yPos = (el.offsetTop - el.scrollTop + el.clientTop);
    var mouseX = e.clientX - xPos,
        mouseY = e.clientY - yPos; 
    cursor.style.top = '' + mouseY + 'px';
    cursor.style.left = '' + mouseX + 'px';
}
// Add event listeners and call fns for the corresponding box
for (var i = 0; i < boxes.length; i++) {
    boxes[i].addEventListener('mousemove', function(event) {
        var currentBox = this;
        boxPos = getPos(event, currentBox);
    }, false);
    boxes[i].addEventListener('mouseenter', function() {
        this.appendChild(cursor);
         setTimeout(function() {
             cursor.classList.add('cursor-is-visible')
         }, 10);
    }, false);
    boxes[i].addEventListener('mouseleave', function() {
        cursor.classList.remove('cursor-is-visible');
    }, false);
}
})();

我需要图像的大小是浏览器宽度的100％。否则光标正常工作，并且与codepen完全一样。只是没有可点击的链接和错误的y位置。

Answer 1

首先，Y位置是正确的，因为您没有注册事件监听器来相应地更新Y位置。到目前为止，你只有鼠标 - 进入，移动和离开事件。要考虑由于滚动而发生的光标位置变化（这不是光标事件），您需要注册一个scoll事件并相应地更新光标Y位置值。

其次，锚点没有做任何事情，因为它在大海捞针中丢失了。为了使它工作，你可以包装你的盒子＆＃34;锚标记中的元素。

以下是更改后的HTML：

<a href="www.google.com" target="_blank">
    <div class="myrow">
        <div class="myrow__box">
            <img alt="" src="https://www.easyjet.com/en/holidays/shared/images/guides/austria/vienna.jpg" />
        </div>
    </div>
</a>

这是改变的JS：

(function showCursor() {
'use strict';
// Variables
var boxes = document.querySelectorAll('.myrow__box'),
    cursor = document.querySelector('.cursor'),
    boxPos = [],
    scrollY = 0;
// Get coordinates for the current cursor position
function getPos(e, el) {
    var xPos = 0,
        yPos = 0;
        xPos = (el.offsetLeft - el.scrollLeft + el.clientLeft);
        yPos = (el.offsetTop - el.scrollTop + el.clientTop);
    var mouseX = e.clientX - xPos,
        mouseY = e.clientY - yPos + scrollY; 
    cursor.style.top = '' + mouseY + 'px';
    cursor.style.left = '' + mouseX + 'px';
}
// Add event listeners and call fns for the corresponding box
for (var i = 0; i < boxes.length; i++) {
boxes[i].addEventListener('mousemove', function(event) {
    var currentBox = this;
    boxPos = getPos(event, currentBox);
}, false);
boxes[i].addEventListener('mouseenter', function() {
    this.appendChild(cursor);
     setTimeout(function() {
         cursor.classList.add('cursor-is-visible')
     }, 10);
}, false);
boxes[i].addEventListener('mouseleave', function() {
    cursor.classList.remove('cursor-is-visible');
}, false);
}
window.addEventListener('scroll', function (event) {
    if(event.target.scrollingElement.localName == "body") {
        scrollY = event.target.scrollingElement.scrollTop;          
    }
})     
})();

查看我为您创建的pen，了解我所做的更改。

动画光标不适用于锚点

1 个答案: