bml-workstand-ui
Version:
A Component Library for Vue.js.
40 lines (39 loc) • 1.41 kB
JavaScript
/**
* 点击波纹效果
*
* @param {[event]} e [description]
* @param {[Object]} arg_opts [description]
* @return {[bollean]} [description]
*/
export default function(e, arg_opts) {
var opts = Object.assign({
ele: e.target, // 波纹作用元素
type: 'hit', // hit点击位置扩散 center中心点扩展
bgc: 'rgba(0, 0, 0, 0.15)' // 波纹颜色
}, arg_opts),
target = opts.ele;
if (target) {
var rect = target.getBoundingClientRect(),
ripple = target.querySelector('.e-ripple');
if (!ripple) {
ripple = document.createElement('span');
ripple.className = 'e-ripple';
ripple.style.height = ripple.style.width = Math.max(rect.width, rect.height) + 'px';
target.appendChild(ripple);
} else {
ripple.className = 'e-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.bgc;
ripple.className = 'e-ripple z-active';
return false;
}
};