/**
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* 点击波纹效果
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*
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* @param {[event]} e [description]
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* @param {[Object]} arg_opts [description]
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* @return {[bollean]} [description]
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*/
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export default function(e, arg_opts) {
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var opts = Object.assign({
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ele: e.target, // 波纹作用元素
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type: 'hit', // hit点击位置扩散center中心点扩展
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bgc: 'rgba(0, 0, 0, 0.15)' // 波纹颜色
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}, arg_opts);
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var target = opts.ele;
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if (target) {
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var rect = target.getBoundingClientRect();
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var ripple = target.querySelector('.e-ripple');
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if (!ripple) {
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ripple = document.createElement('span');
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ripple.className = 'e-ripple';
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ripple.style.height = ripple.style.width = Math.max(rect.width, rect.height) + 'px';
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target.appendChild(ripple);
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} else {
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ripple.className = 'e-ripple';
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}
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switch (opts.type) {
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case 'center':
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ripple.style.top = (rect.height / 2 - ripple.offsetHeight / 2) + 'px';
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ripple.style.left = (rect.width / 2 - ripple.offsetWidth / 2) + 'px';
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break;
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default:
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ripple.style.top = (e.pageY - rect.top - ripple.offsetHeight / 2 - document.body.scrollTop) + 'px';
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ripple.style.left = (e.pageX - rect.left - ripple.offsetWidth / 2 - document.body.scrollLeft) + 'px';
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}
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ripple.style.backgroundColor = opts.bgc;
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ripple.className = 'e-ripple z-active';
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return false;
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}
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}
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