vue-waves-點擊容器出現水波紋效果

 

 

 

1. 創建 waves.css文件

.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;

}

 

　　2. 創建 waves.js 文件

import './waves.css'

const context = '@@wavesContext'

function handleClick(el, binding) {

  function handle(e) {

    const customOpts = Object.assign({}, binding.value)

    const opts = Object.assign({

      ele: el, // 波紋作用元素

      type: 'hit', // hit 點擊位置擴散 center中心點擴展

      color: 'rgba(0, 0, 0, 0.15)' // 波紋顏色

    },

    customOpts

    )

    const 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.documentElement.scrollTop ||

              document.body.scrollTop) + 'px'

          ripple.style.left =

            (e.pageX - rect.left - ripple.offsetWidth / 2 - document.documentElement.scrollLeft ||

              document.body.scrollLeft) + 'px'

      }

      ripple.style.backgroundColor = opts.color

      ripple.className = 'waves-ripple z-active'

      return false

    }

  }

  if (!el[context]) {

    el[context] = {

      removeHandle: handle

    }

  } else {

    el[context].removeHandle = handle

  }

  return handle

}

export default {

  bind(el, binding) {

    el.addEventListener('click', handleClick(el, binding), false)

  },

  update(el, binding) {

    el.removeEventListener('click', el[context].removeHandle, false)

    el.addEventListener('click', handleClick(el, binding), false)

  },

  unbind(el) {

    el.removeEventListener('click', el[context].removeHandle, false)

    el[context] = null

    delete el[context]

  }

}

 

　　3. 創建 index.js 文件

import waves from './waves'

const install = function(Vue) {

  Vue.directive('waves', waves)

}

if (window.Vue) {

  window.waves = waves

  Vue.use(install); // eslint-disable-line

}

waves.install = install

export default waves

 

　　4. 使用

使用的話 直接在div上使用v-waves標簽即可

<div v-waves class="card-panel"> </div>

<script>

import waves from '@/directive/waves' //引入

export default { 

 directives: { waves } //注冊

}

</script>

 

 

轉 ： https://www.jianshu.com/p/883a30aa8dd6

或 https://ext.dcloud.net.cn/plugin?id=1671