feat: workflow if-else support elif (#6072)

web/app/components/workflow/nodes/if-else/components/condition-add.tsx

@@ -0,0 +1,75 @@
+import {
+  useCallback,
+  useState,
+} from 'react'
+import { useTranslation } from 'react-i18next'
+import { RiAddLine } from '@remixicon/react'
+import type { HandleAddCondition } from '../types'
+import Button from '@/app/components/base/button'
+import {
+  PortalToFollowElem,
+  PortalToFollowElemContent,
+  PortalToFollowElemTrigger,
+} from '@/app/components/base/portal-to-follow-elem'
+import VarReferenceVars from '@/app/components/workflow/nodes/_base/components/variable/var-reference-vars'
+import type {
+  NodeOutPutVar,
+  ValueSelector,
+  Var,
+} from '@/app/components/workflow/types'
+
+type ConditionAddProps = {
+  className?: string
+  caseId: string
+  variables: NodeOutPutVar[]
+  onSelectVariable: HandleAddCondition
+  disabled?: boolean
+}
+const ConditionAdd = ({
+  className,
+  caseId,
+  variables,
+  onSelectVariable,
+  disabled,
+}: ConditionAddProps) => {
+  const { t } = useTranslation()
+  const [open, setOpen] = useState(false)
+
+  const handleSelectVariable = useCallback((valueSelector: ValueSelector, varItem: Var) => {
+    onSelectVariable(caseId, valueSelector, varItem)
+    setOpen(false)
+  }, [caseId, onSelectVariable, setOpen])
+
+  return (
+    <PortalToFollowElem
+      open={open}
+      onOpenChange={setOpen}
+      placement='bottom-start'
+      offset={{
+        mainAxis: 4,
+        crossAxis: 0,
+      }}
+    >
+      <PortalToFollowElemTrigger onClick={() => setOpen(!open)}>
+        <Button
+          size='small'
+          className={className}
+          disabled={disabled}
+        >
+          <RiAddLine className='mr-1 w-3.5 h-3.5' />
+          {t('workflow.nodes.ifElse.addCondition')}
+        </Button>
+      </PortalToFollowElemTrigger>
+      <PortalToFollowElemContent className='z-[1000]'>
+        <div className='w-[296px] bg-components-panel-bg-blur rounded-lg border-[0.5px] border-components-panel-border shadow-lg'>
+          <VarReferenceVars
+            vars={variables}
+            onChange={handleSelectVariable}
+          />
+        </div>
+      </PortalToFollowElemContent>
+    </PortalToFollowElem>
+  )
+}
+
+export default ConditionAdd