feat(hooks): redesign popper apis (#2529)

* feat(hooks): redesign popper apis

- Redesign use-popper APIs to make it more adaptable.

* - Reorganize the popper APIs

packages/hooks/use-popper/index.ts

@@ -30,7 +30,7 @@ import useTeleport from '../use-teleport'
 import useTimeout from '../use-timeout'
 import { useModelToggle } from '../use-model-toggle'
 import { useTransitionFallthrough } from '../use-transition-fallthrough'
-import { usePopperOptions } from './use-popper-options'
+import { defaultPopperOptions, defaultModifiers } from './use-popper-options'
 import { useTargetEvents, DEFAULT_TRIGGER } from './use-target-events'
 
 import type {
@@ -41,9 +41,7 @@ import type {
 } from 'vue'
 import type {
   Instance as PopperInstance,
-  Options,
-  Placement,
-  PositioningStrategy,
+  StrictModifiers,
 } from '@popperjs/core'
 import type { RefElement } from '@element-plus/utils/types'
 import type { Trigger } from './use-target-events'
@@ -56,47 +54,23 @@ type ElementType = ComponentPublicInstance | HTMLElement
 export const DARK_EFFECT = 'dark'
 export const LIGHT_EFFECT = 'light'
 
-const DEFAULT_FALLBACK_PLACEMENTS = []
-
-
-export const popperConfigs = {
+export const usePopperControlProps = {
   appendToBody: {
     type: Boolean,
     default: true,
   },
   arrowOffset: {
     type: Number,
-    default: 5,
   },
-  fallbackPlacements: {
-    type: Array as PropType<Placement[]>,
-    default: () => DEFAULT_FALLBACK_PLACEMENTS,
-  },
-  gpuAcceleration: {
-    type: Boolean,
-    default: true,
-  },
-  offset: {
-    type: Number,
-    default: 12,
-  },
-  placement: {
-    type: String as PropType<Placement>,
-    default: 'bottom' as Placement,
-  },
-  // Once this option were given, the entire popper is under the users' control, top priority
-  popperOptions: {
-    type: Object as PropType<Options>,
-    default: () => null,
-  },
-  strategy: {
-    type: String as PropType<PositioningStrategy>,
-    default: 'fixed' as PositioningStrategy,
+  popperOptions: defaultPopperOptions,
+  popperClass: {
+    type: String,
+    default: '',
   },
 }
 
 export const usePopperProps = {
-  ...popperConfigs,
+  ...usePopperControlProps,
   // the arrow size is an equailateral triangle with 10px side length, the 3rd side length ~ 14.1px
   // adding a offset to the ceil of 4.1 should be 5 this resolves the problem of arrow overflowing out of popper.
   autoClose: {
@@ -107,10 +81,7 @@ export const usePopperProps = {
     type: String,
     default: '',
   },
-  class: {
-    type: String,
-    default: '',
-  },
+  class: String,
   style: Object,
   hideAfter: {
     type: Number,
@@ -136,10 +107,6 @@ export const usePopperProps = {
     type: Number,
     default: 0,
   },
-  popperClass: {
-    type: String,
-    default: '',
-  },
   pure: {
     type: Boolean,
     default: false,
@@ -176,7 +143,6 @@ export const usePopper = () => {
   const triggerRef = ref<ElementType>(null)
   const popperRef = ref<RefElement>(null)
 
-  const popperOptions = usePopperOptions(arrowRef)
   const popperStyle = ref<CSSProperties>({ zIndex: PopupManager.nextZIndex() })
   const visible = ref(false)
   const isManual = computed(() => props.manualMode || props.trigger === 'manual')
@@ -274,10 +240,33 @@ export const usePopper = () => {
     const $el = isHTMLElement(unwrappedTrigger)
       ? unwrappedTrigger
       : (unwrappedTrigger as ComponentPublicInstance).$el
-    popperInstance = createPopper($el, popperRef.value, popperOptions.value)
+
+    popperInstance = createPopper($el, popperRef.value, buildPopperOptions())
     popperInstance.update()
   }
 
+  function buildPopperOptions() {
+    const modifiers = [
+      ...defaultModifiers,
+      ...props.popperOptions.modifiers,
+    ]
+
+    if (props.showArrow) {
+      modifiers.push({
+        name: 'arrow',
+        options: {
+          padding: props.arrowOffset || 5,
+          element: arrowRef.value,
+        },
+      } as StrictModifiers)
+    }
+
+    return {
+      ...props.popperOptions,
+      modifiers,
+    }
+  }
+
   const {
     onAfterEnter,
     onAfterLeave,

packages/hooks/use-popper/use-popper-options.ts

@@ -1,68 +1,14 @@
-import { computed, getCurrentInstance } from 'vue'
 
-import type { Ref } from 'vue'
-import type {
-  Options,
-  Placement,
-  StrictModifiers,
-  PositioningStrategy,
-} from '@popperjs/core'
+import type { PropType } from 'vue'
+import type { Options } from '@popperjs/core'
 
-interface IUsePopperProps {
-  arrowOffset: number
-  fallbackPlacements: Array<Placement>
-  gpuAcceleration: boolean
-  offset: number
-  popperOptions: Options
-  placement: Placement
-  strategy: PositioningStrategy
-}
+export const DEFAULT_FALLBACK_PLACEMENTS = []
 
-export const usePopperOptions = (arrowRef: Ref<HTMLElement>) => {
-  const vm = getCurrentInstance()
-
-  const props = vm.props as unknown as IUsePopperProps
-
-  return computed(() => {
-    return {
-      placement: props.placement,
-      strategy: props.strategy,
-      ...props.popperOptions,
-      // Avoiding overriding modifiers.
-      modifiers: buildModifiers({
-        arrow: arrowRef.value,
-        arrowOffset: props.arrowOffset,
-        offset: props.offset,
-        gpuAcceleration: props.gpuAcceleration,
-        fallbackPlacements: props.fallbackPlacements,
-      }, props.popperOptions?.modifiers),
-    }
-  })
-}
-
-interface ModifierProps {
-  offset?: number
-  arrow?: HTMLElement
-  arrowOffset?: number
-  gpuAcceleration?: boolean
-  fallbackPlacements?: Array<Placement>
-}
-
-function buildModifiers(props: ModifierProps, externalModifiers: StrictModifiers[] = []) {
-
-  const {
-    arrow,
-    arrowOffset,
-    offset,
-    gpuAcceleration,
-    fallbackPlacements,
-  } = props
-
-  const modifiers: Array<StrictModifiers> = [
+export const defaultModifiers = [
   {
     name: 'offset',
     options: {
-        offset: [0, offset ?? 12],
+      offset: [0, 12],
     },
   },
   {
@@ -80,29 +26,25 @@ function buildModifiers(props: ModifierProps, externalModifiers: StrictModifiers
     name: 'flip',
     options: {
       padding: 5,
-        fallbackPlacements: fallbackPlacements ?? [],
+      fallbackPlacements: [],
     },
   },
   {
     name: 'computeStyles',
     options: {
-        gpuAcceleration,
-        adaptive: gpuAcceleration,
+      gpuAcceleration: true,
+      adaptive: true,
     },
   },
-    // tippyModifier,
 ]
 
-  if (arrow) {
-    modifiers.push({
-      name: 'arrow',
-      options: {
-        element: arrow,
-        padding: arrowOffset ?? 5,
+export const defaultPopperOptions = {
+  type: Object as PropType<Options>,
+  default: () => {
+    return {
+      fallbackPlacements: DEFAULT_FALLBACK_PLACEMENTS,
+      strategy: 'fixed',
+      modifiers: defaultModifiers,
+    }
   },
-    })
-  }
-
-  modifiers.push(...(externalModifiers))
-  return modifiers
 }