需求：在移动端端待办列表。
当用户点击跳转待办详情时，可以看到用户点击那一条数据。
CSS
.waves-ripple {
position: absolute;
border-radius: 100%;
background-color: rgba(0, 0, 0, 0.15);
background-clip: padding-box;
pointer-events: none;
-webkit-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none;
-webkit-transform: scale(0);
-ms-transform: scale(0);
transform: scale(0);
opacity: 1;
}
.waves-ripple.z-active {
opacity: 0;
-webkit-transform: scale(2);
-ms-transform: scale(2);
transform: scale(2);
-webkit-transition: opacity 1.2s ease-out, -webkit-transform 0.6s ease-out;
transition: opacity 1.2s ease-out, -webkit-transform 0.6s ease-out;
transition: opacity 1.2s ease-out, transform 0.6s ease-out;
transition: opacity 1.2s ease-out, transform 0.6s ease-out, -webkit-transform 0.6s ease-out;
}
js
import \'./waves.css\';
const vueWaves = {};
vueWaves.install = (Vue, options = {}) => {
Vue.directive(\'waves\', {
bind(el, binding) {
el.addEventListener(\'click\', e => {
const customOpts = Object.assign(options, binding.value);
const opts = Object.assign({
ele: el, // 波纹作用元素
type: \'hit\', // hit点击位置扩散center中心点扩展
color: \'rgba(0, 0, 0, 0.15)\' // 波纹颜色
}, customOpts),
target = opts.ele;
if (target) {
target.style.position = \'relative\';
target.style.overflow = \'hidden\';
const rect = target.getBoundingClientRect();
let ripple = target.querySelector(\'.waves-ripple\');
if (!ripple) {
ripple = document.createElement(\'span\');
ripple.className = \'waves-ripple\';
ripple.style.height = ripple.style.width = Math.max(rect.width, rect.height) + \'px\';
target.appendChild(ripple);
} else {
ripple.className = \'waves-ripple\';
}
switch (opts.type) {
case \'center\':
ripple.style.top = (rect.height / 2 - ripple.offsetHeight / 2) + \'px\';
ripple.style.left = (rect.width / 2 - ripple.offsetWidth / 2) + \'px\';
break;
default:
ripple.style.top = (e.pageY - rect.top - ripple.offsetHeight / 2 - document.body.scrollTop) + \'px\';
ripple.style.left = (e.pageX - rect.left - ripple.offsetWidth / 2 - document.body.scrollLeft) + \'px\';
}
ripple.style.backgroundColor = opts.color;
ripple.className = \'waves-ripple z-active\';
return false;
}
}, false);
}
})
};
export default vueWaves;
main.js
import vueWaves from \'./directive/waves\'; // 水波纹指令
Vue.use(vueWaves);