feat: implement empty state for search dropdown with localized messages

web/app/components/plugins/marketplace/search-box/index.spec.tsx

@@ -28,6 +28,8 @@ vi.mock('#i18n', () => ({
         'plugin.marketplace.searchDropdown.showAllResults': 'Show all search results',
         'plugin.marketplace.searchDropdown.enter': 'Enter',
         'plugin.marketplace.searchDropdown.byAuthor': `by ${options?.author || ''}`,
+        'plugin.marketplace.searchDropdown.noMatchesTitle': 'No matches',
+        'plugin.marketplace.searchDropdown.noMatchesDesc': 'Try different filter options.',
       }
       return translations[fullKey] || key
     },
@@ -582,6 +584,22 @@ describe('SearchDropdown', () => {
       expect(screen.getByText('Tool')).toBeInTheDocument()
       expect(screen.getByText('206 installs')).toBeInTheDocument()
     })
+
+    it('should render empty state when no results', () => {
+      render(
+        <SearchDropdown
+          query="non-existent"
+          plugins={[]}
+          templates={[]}
+          creators={[]}
+          onShowAll={vi.fn()}
+        />,
+      )
+
+      expect(screen.getByText('No matches')).toBeInTheDocument()
+      expect(screen.getByText('Try different filter options.')).toBeInTheDocument()
+      expect(screen.queryByText('Show all search results')).not.toBeInTheDocument()
+    })
   })
 
   describe('Interactions', () => {

web/app/components/plugins/marketplace/search-box/search-box-wrapper.tsx

@@ -70,8 +70,8 @@ const SearchBoxWrapper = ({
     [dropdownQuery.data?.creators.items],
   )
 
-  const handleSubmit = () => {
-    const trimmed = draftSearch.trim()
+  const handleSubmit = (queryOverride?: string) => {
+    const trimmed = (queryOverride ?? draftSearch).trim()
     if (!trimmed)
       return
 
@@ -141,7 +141,7 @@ const SearchBoxWrapper = ({
           templates={dropdownTemplates}
           creators={dropdownCreators}
           includeSource={includeSource}
-          onShowAll={handleSubmit}
+          onShowAll={() => handleSubmit(debouncedDraft)}
           isLoading={dropdownQuery.isLoading}
         />
       </PortalToFollowElemContent>

web/app/components/plugins/marketplace/search-box/search-dropdown/index.tsx

@@ -1,7 +1,7 @@
 import type { Creator, Template } from '../../types'
 import type { Plugin } from '@/app/components/plugins/types'
 import { useTranslation } from '#i18n'
-import { RiArrowRightLine } from '@remixicon/react'
+import { RiArrowRightLine, RiFilter3Line } from '@remixicon/react'
 import { Fragment } from 'react'
 import AppIcon from '@/app/components/base/app-icon'
 import Loading from '@/app/components/base/loading'
@@ -27,6 +27,16 @@ const DropdownSection = ({ title, children }: { title: string, children: React.R
   </div>
 )
 
+const EmptyState = ({ title, description }: { title: string, description: string }) => (
+  <div className="flex flex-col items-center gap-2 px-3 py-6">
+    <RiFilter3Line className="h-6 w-6 text-text-empty-state-icon" />
+    <div className="flex flex-col items-center gap-1 text-center">
+      <div className="system-md-medium text-text-secondary">{title}</div>
+      <div className="system-xs-regular text-text-tertiary">{description}</div>
+    </div>
+  </div>
+)
+
 const DropdownItem = ({ href, icon, children }: {
   href: string
   icon: React.ReactNode
@@ -162,6 +172,12 @@ const SearchDropdown = ({
             <Loading />
           </div>
         )}
+        {!isLoading && !hasResults && (
+          <EmptyState
+            title={t('marketplace.searchDropdown.noMatchesTitle', { ns: 'plugin' })}
+            description={t('marketplace.searchDropdown.noMatchesDesc', { ns: 'plugin' })}
+          />
+        )}
 
         {sections.map((section, i) => (
           <Fragment key={i}>
@@ -170,23 +186,25 @@ const SearchDropdown = ({
           </Fragment>
         ))}
       </div>
-      <div className="border-t border-divider-subtle p-1">
-        <button
-          className="group flex w-full items-center justify-between rounded-lg px-3 py-2 text-left hover:bg-state-base-hover"
-          onClick={onShowAll}
-          type="button"
-        >
-          <span className="system-sm-medium text-text-accent">
-            {t('marketplace.searchDropdown.showAllResults', { ns: 'plugin', query })}
-          </span>
-          <span className="flex items-center">
-            <span className="system-2xs-medium-uppercase rounded-[5px] border border-divider-deep px-1.5 py-0.5 text-text-tertiary group-hover:hidden">
-              {t('marketplace.searchDropdown.enter', { ns: 'plugin' })}
+      {hasResults && (
+        <div className="border-t border-divider-subtle p-1">
+          <button
+            className="group flex w-full items-center justify-between rounded-lg px-3 py-2 text-left hover:bg-state-base-hover"
+            onClick={onShowAll}
+            type="button"
+          >
+            <span className="system-sm-medium text-text-accent">
+              {t('marketplace.searchDropdown.showAllResults', { ns: 'plugin', query })}
             </span>
-            <RiArrowRightLine className="hidden h-[18px] w-[18px] text-text-accent group-hover:block" />
-          </span>
-        </button>
-      </div>
+            <span className="flex items-center">
+              <span className="system-2xs-medium-uppercase rounded-[5px] border border-divider-deep px-1.5 py-0.5 text-text-tertiary group-hover:hidden">
+                {t('marketplace.searchDropdown.enter', { ns: 'plugin' })}
+              </span>
+              <RiArrowRightLine className="hidden h-[18px] w-[18px] text-text-accent group-hover:block" />
+            </span>
+          </button>
+        </div>
+      )}
     </div>
   )
 }

web/i18n/en-US/plugin.json

@@ -220,6 +220,8 @@
   "marketplace.searchBreadcrumbSearch": "Search",
   "marketplace.searchDropdown.byAuthor": "by {{author}}",
   "marketplace.searchDropdown.enter": "Enter",
+  "marketplace.searchDropdown.noMatchesDesc": "Try different filter options.",
+  "marketplace.searchDropdown.noMatchesTitle": "No matches",
   "marketplace.searchDropdown.plugins": "Plugins",
   "marketplace.searchDropdown.showAllResults": "Show all search results",
   "marketplace.searchFilterAll": "All",

web/i18n/zh-Hans/plugin.json

@@ -220,6 +220,8 @@
   "marketplace.searchBreadcrumbSearch": "搜索",
   "marketplace.searchDropdown.byAuthor": "由 {{author}} 提供",
   "marketplace.searchDropdown.enter": "输入",
+  "marketplace.searchDropdown.noMatchesDesc": "尝试其他筛选条件。",
+  "marketplace.searchDropdown.noMatchesTitle": "无匹配结果",
   "marketplace.searchDropdown.plugins": "插件",
   "marketplace.searchDropdown.showAllResults": "显示所有搜索结果",
   "marketplace.searchFilterAll": "全部",