From 9243370f1c0192652190a28ceba3c2c1ee7dbee5 Mon Sep 17 00:00:00 2001
From: aibayanyu <aibayanyu@qq.com>
Date: Sat, 18 Mar 2023 21:16:41 +0800
Subject: [PATCH] feat: add wave effect

---
 components/_util/wave/index.tsx       |  2 +-
 components/_util/wave/wave-effect.tsx | 88 +++++++++++++++++++++++++--
 site/demos/button/basic.vue           |  1 +
 3 files changed, 84 insertions(+), 7 deletions(-)

diff --git a/components/_util/wave/index.tsx b/components/_util/wave/index.tsx
index b18fb5f..c122f6b 100644
--- a/components/_util/wave/index.tsx
+++ b/components/_util/wave/index.tsx
@@ -20,7 +20,7 @@ const Wave = defineComponent({
     const [, hashId] = useStyle(prefixCls)
     const showWave = useWave(
       containerRef,
-      computed(() => classNames(prefixCls, hashId))
+      computed(() => classNames(prefixCls.value, hashId.value))
     )
 
     const onClick = (e: MouseEvent) => {
diff --git a/components/_util/wave/wave-effect.tsx b/components/_util/wave/wave-effect.tsx
index 7a08a7e..abef305 100644
--- a/components/_util/wave/wave-effect.tsx
+++ b/components/_util/wave/wave-effect.tsx
@@ -1,15 +1,91 @@
 import type { ComputedRef, Ref } from 'vue'
-import { unrefElement } from '@vueuse/core'
-import { defineComponent, render } from 'vue'
-import { objectType } from '@v-c/utils'
-
+import { unrefElement, useResizeObserver } from '@vueuse/core'
+import { computed, defineComponent, onMounted, render, shallowRef, toRef } from 'vue'
+import { classNames, delayTimer, objectType, safeNextick, useState } from '@v-c/utils'
+import { getTargetWaveColor } from './util'
+function validateNum(value: number) {
+  return Number.isNaN(value) ? 0 : value
+}
 export const WaveEffect = defineComponent({
   name: 'WaveEffect',
   props: {
     target: objectType<HTMLElement>()
   },
-  setup() {
-    return () => null
+  setup(props, { attrs }) {
+    const divRef = shallowRef<HTMLDivElement | undefined>(undefined)
+
+    const [color, setWaveColor] = useState<string | null>(null)
+    const [borderRadius, setBorderRadius] = useState<number[]>([])
+    const [left, setLeft] = useState(0)
+    const [top, setTop] = useState(0)
+    const [width, setWidth] = useState(0)
+    const [height, setHeight] = useState(0)
+    const [enabled, setEnabled] = useState(false)
+    const [active, setActive] = useState(false)
+    const waveStyle = computed(() => {
+      const style: Record<string, any> = {
+        left: `${left.value}px`,
+        top: `${top.value}px`,
+        width: `${width.value}px`,
+        height: `${height.value}px`,
+        borderRadius: borderRadius.value.map(radius => `${radius}px`).join(' ')
+      }
+      if (color.value) {
+        style['--wave-color'] = color.value
+      }
+      return style
+    })
+    function syncPos() {
+      const { target } = props
+      const nodeStyle = getComputedStyle(target)
+
+      // Get wave color from target
+      setWaveColor(getTargetWaveColor(target))
+
+      const isStatic = nodeStyle.position === 'static'
+
+      // Rect
+      const { borderLeftWidth, borderTopWidth } = nodeStyle
+      setLeft(isStatic ? target.offsetLeft : validateNum(-parseFloat(borderLeftWidth)))
+      setTop(isStatic ? target.offsetTop : validateNum(-parseFloat(borderTopWidth)))
+      setWidth(target.offsetWidth)
+      setHeight(target.offsetHeight)
+
+      // Get border radius
+      const { borderTopLeftRadius, borderTopRightRadius, borderBottomLeftRadius, borderBottomRightRadius } = nodeStyle
+
+      setBorderRadius([borderTopLeftRadius, borderTopRightRadius, borderBottomRightRadius, borderBottomLeftRadius].map(radius => validateNum(parseFloat(radius))))
+    }
+    onMounted(async () => {
+      syncPos()
+      setEnabled(true)
+      await safeNextick()
+      setActive(true)
+      await delayTimer(5000)
+      const holder = divRef.value?.parentElement
+      holder!.parentElement?.removeChild(holder!)
+    })
+    const motionClassName = computed(() =>
+      classNames({
+        'wave-motion-appear': enabled.value,
+        'wave-motion': true
+      })
+    )
+    const motionClassNameActive = computed(() => ({
+      'wave-motion-appear-active': active.value
+    }))
+    useResizeObserver(toRef(props, 'target'), syncPos)
+
+    return () => {
+      if (!enabled.value) return null
+      return (
+        <div
+          ref={divRef}
+          class={[attrs.class, motionClassName.value, motionClassNameActive.value]}
+          style={waveStyle.value}
+        />
+      )
+    }
   }
 })
 
diff --git a/site/demos/button/basic.vue b/site/demos/button/basic.vue
index bbfa221..67e9f3e 100644
--- a/site/demos/button/basic.vue
+++ b/site/demos/button/basic.vue
@@ -12,6 +12,7 @@ title: 基础按钮
 <template>
   <div>
     <a-button>这是按钮</a-button>
+    <div style="height: 10px"></div>
   </div>
 </template>