import './waves.css'

export default {
    bind(el: any, binding: any) {
        el.addEventListener(
            'click',
            (e: any) => {
                const customOpts = { ...binding.value }
                const opts = {
                    ele: el, // 波纹作用元素
                    type: 'hit', // hit 点击位置扩散 center中心点扩展
                    color: 'rgb(0, 0, 0 / 15%)', // 波纹颜色
                    ...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
                }
            },
            false
        )
    }
}