feat(translate): 支持后台执行翻译任务

- 新增translate store模块管理翻译状态
- 实现useTranslate hook封装翻译逻辑
- 重构TranslatePage组件使用新的翻译逻辑

src/renderer/src/hooks/useTranslate.ts

@@ -0,0 +1,70 @@
+import db from '@renderer/databases'
+import { fetchTranslate } from '@renderer/services/ApiService'
+import store, { useAppDispatch, useAppSelector } from '@renderer/store'
+import {
+  setTranslatedContent as _setTranslatedContent,
+  setTranslating as _setTranslating
+} from '@renderer/store/translate'
+import { Assistant, TranslateHistory } from '@renderer/types'
+import { uuid } from '@renderer/utils'
+
+export default function useTranslate() {
+  const translatedContent = useAppSelector((state) => state.translate.translatedContent)
+  const translating = useAppSelector((state) => state.translate.translating)
+
+  const dispatch = useAppDispatch()
+
+  const setTranslatedContent = (content: string) => {
+    dispatch(_setTranslatedContent(content))
+  }
+
+  const setTranslating = (translating: boolean) => {
+    dispatch(_setTranslating(translating))
+  }
+
+  const translate = async (
+    text: string,
+    assistant: Assistant,
+    actualSourceLanguage: string,
+    actualTargetLanguage: string
+  ) => {
+    setTranslating(true)
+    await fetchTranslate({
+      content: text,
+      assistant,
+      onResponse: (text) => {
+        setTranslatedContent(text)
+      }
+    })
+    const translatedContent = store.getState().translate.translatedContent
+    await saveTranslateHistory(text, translatedContent, actualSourceLanguage, actualTargetLanguage)
+
+    setTranslating(false)
+  }
+
+  const saveTranslateHistory = async (
+    sourceText: string,
+    targetText: string,
+    sourceLanguage: string,
+    targetLanguage: string
+  ) => {
+    const history: TranslateHistory = {
+      id: uuid(),
+      sourceText,
+      targetText,
+      sourceLanguage,
+      targetLanguage,
+      createdAt: new Date().toISOString()
+    }
+    await db.translate_history.add(history)
+  }
+
+  return {
+    translatedContent,
+    translating,
+    setTranslatedContent,
+    setTranslating,
+    translate,
+    saveTranslateHistory
+  }
+}

src/renderer/src/pages/translate/TranslatePage.tsx

@@ -10,13 +10,13 @@ import db from '@renderer/databases'
 import { useDefaultModel } from '@renderer/hooks/useAssistant'
 import { useProviders } from '@renderer/hooks/useProvider'
 import { useSettings } from '@renderer/hooks/useSettings'
-import { fetchTranslate } from '@renderer/services/ApiService'
+import useTranslate from '@renderer/hooks/useTranslate'
 import { getDefaultTranslateAssistant } from '@renderer/services/AssistantService'
 import { getModelUniqId, hasModel } from '@renderer/services/ModelService'
 import { useAppDispatch } from '@renderer/store'
 import { setTranslateModelPrompt } from '@renderer/store/settings'
 import type { Model, TranslateHistory } from '@renderer/types'
-import { runAsyncFunction, uuid } from '@renderer/utils'
+import { runAsyncFunction } from '@renderer/utils'
 import {
   createInputScrollHandler,
   createOutputScrollHandler,
@@ -34,7 +34,6 @@ import { useTranslation } from 'react-i18next'
 import styled from 'styled-components'
 
 let _text = ''
-let _result = ''
 let _targetLanguage = 'english'
 
 const TranslateSettings: FC<{
@@ -277,10 +276,8 @@ const TranslatePage: FC = () => {
   const { shikiMarkdownIt } = useCodeStyle()
   const [targetLanguage, setTargetLanguage] = useState(_targetLanguage)
   const [text, setText] = useState(_text)
-  const [result, setResult] = useState(_result)
   const [renderedMarkdown, setRenderedMarkdown] = useState<string>('')
   const { translateModel, setTranslateModel } = useDefaultModel()
-  const [loading, setLoading] = useState(false)
   const [copied, setCopied] = useState(false)
   const [historyDrawerVisible, setHistoryDrawerVisible] = useState(false)
   const [isScrollSyncEnabled, setIsScrollSyncEnabled] = useState(false)
@@ -299,9 +296,9 @@ const TranslatePage: FC = () => {
   const allModels = useMemo(() => providers.map((p) => p.models).flat(), [providers])
 
   const translateHistory = useLiveQuery(() => db.translate_history.orderBy('createdAt').reverse().toArray(), [])
+  const { translatedContent, translating, translate, setTranslatedContent, setTranslating } = useTranslate()
 
   _text = text
-  _result = result
   _targetLanguage = targetLanguage
 
   const selectOptions = useMemo(
@@ -326,23 +323,6 @@ const TranslatePage: FC = () => {
     db.settings.put({ id: 'translate:model', value: model.id })
   }
 
-  const saveTranslateHistory = async (
-    sourceText: string,
-    targetText: string,
-    sourceLanguage: string,
-    targetLanguage: string
-  ) => {
-    const history: TranslateHistory = {
-      id: uuid(),
-      sourceText,
-      targetText,
-      sourceLanguage,
-      targetLanguage,
-      createdAt: new Date().toISOString()
-    }
-    await db.translate_history.add(history)
-  }
-
   const deleteHistory = async (id: string) => {
     db.translate_history.delete(id)
   }
@@ -361,7 +341,7 @@ const TranslatePage: FC = () => {
       return
     }
 
-    setLoading(true)
+    setTranslating(true)
     try {
       // 确定源语言：如果用户选择了特定语言，使用用户选择的；如果选择'auto'，则自动检测
       let actualSourceLanguage: string
@@ -385,7 +365,7 @@ const TranslatePage: FC = () => {
           content: errorMessage,
           key: 'translate-message'
         })
-        setLoading(false)
+        setTranslating(false)
         return
       }
 
@@ -395,25 +375,15 @@ const TranslatePage: FC = () => {
       }
 
       const assistant = getDefaultTranslateAssistant(actualTargetLanguage, text)
-      let translatedText = ''
-      await fetchTranslate({
-        content: text,
-        assistant,
-        onResponse: (text) => {
-          translatedText = text.replace(/^\s*\n+/g, '')
-          setResult(translatedText)
-        }
-      })
 
-      await saveTranslateHistory(text, translatedText, actualSourceLanguage, actualTargetLanguage)
-      setLoading(false)
+      await translate(text, assistant, actualSourceLanguage, actualTargetLanguage)
     } catch (error) {
       console.error('Translation error:', error)
       window.message.error({
         content: String(error),
         key: 'translate-message'
       })
-      setLoading(false)
+      setTranslating(false)
       return
     }
   }
@@ -424,26 +394,26 @@ const TranslatePage: FC = () => {
   }
 
   const onCopy = () => {
-    navigator.clipboard.writeText(result)
+    navigator.clipboard.writeText(translatedContent)
     setCopied(true)
     setTimeout(() => setCopied(false), 2000)
   }
 
   const onHistoryItemClick = (history: TranslateHistory) => {
     setText(history.sourceText)
-    setResult(history.targetText)
+    setTranslatedContent(history.targetText)
     setTargetLanguage(history.targetLanguage)
   }
 
   useEffect(() => {
-    isEmpty(text) && setResult('')
-  }, [text])
+    isEmpty(text) && setTranslatedContent('')
+  }, [setTranslatedContent, text])
 
   // Render markdown content when result or enableMarkdown changes
   useEffect(() => {
-    if (enableMarkdown && result) {
+    if (enableMarkdown && translatedContent) {
       let isMounted = true
-      shikiMarkdownIt(result).then((rendered) => {
+      shikiMarkdownIt(translatedContent).then((rendered) => {
         if (isMounted) {
           setRenderedMarkdown(rendered)
         }
@@ -455,7 +425,7 @@ const TranslatePage: FC = () => {
       setRenderedMarkdown('')
       return undefined
     }
-  }, [result, enableMarkdown, shikiMarkdownIt])
+  }, [enableMarkdown, shikiMarkdownIt, translatedContent])
 
   useEffect(() => {
     runAsyncFunction(async () => {
@@ -650,7 +620,7 @@ const TranslatePage: FC = () => {
               }>
               <TranslateButton
                 type="primary"
-                loading={loading}
+                loading={translating}
                 onClick={onTranslate}
                 disabled={!text.trim()}
                 icon={<SendOutlined />}>
@@ -667,7 +637,7 @@ const TranslatePage: FC = () => {
             onChange={(e) => setText(e.target.value)}
             onKeyDown={onKeyDown}
             onScroll={handleInputScroll}
-            disabled={loading}
+            disabled={translating}
             spellCheck={false}
             allowClear
           />
@@ -680,18 +650,18 @@ const TranslatePage: FC = () => {
             </HStack>
             <CopyButton
               onClick={onCopy}
-              disabled={!result}
+              disabled={!translatedContent}
               icon={copied ? <CheckOutlined style={{ color: 'var(--color-primary)' }} /> : <CopyIcon />}
             />
           </OperationBar>
 
           <OutputText ref={outputTextRef} onScroll={handleOutputScroll} className={'selectable'}>
-            {!result ? (
+            {!translatedContent ? (
               t('translate.output.placeholder')
             ) : enableMarkdown ? (
               <div className="markdown" dangerouslySetInnerHTML={{ __html: renderedMarkdown }} />
             ) : (
-              <div className="plain">{result}</div>
+              <div className="plain">{translatedContent}</div>
             )}
           </OutputText>
         </OutputContainer>

src/renderer/src/store/index.ts

@@ -24,6 +24,7 @@ import runtime from './runtime'
 import selectionStore from './selectionStore'
 import settings from './settings'
 import shortcuts from './shortcuts'
+import translate from './translate'
 import websearch from './websearch'
 
 const rootReducer = combineReducers({
@@ -47,7 +48,8 @@ const rootReducer = combineReducers({
   preprocess,
   messages: newMessagesReducer,
   messageBlocks: messageBlocksReducer,
-  inputTools: inputToolsReducer
+  inputTools: inputToolsReducer,
+  translate
 })
 
 const persistedReducer = persistReducer(

src/renderer/src/store/translate.ts

@@ -0,0 +1,34 @@
+import { createSlice, PayloadAction } from '@reduxjs/toolkit'
+
+export interface TranslateState {
+  translating: boolean
+  translatedContent: string
+}
+
+const initialState: TranslateState = {
+  translating: false,
+  translatedContent: ''
+}
+
+const translateSlice = createSlice({
+  name: 'translate',
+  initialState,
+  reducers: {
+    setTranslating: (state, action: PayloadAction<boolean>) => {
+      return {
+        ...state,
+        translating: action.payload
+      }
+    },
+    setTranslatedContent: (state, action: PayloadAction<string>) => {
+      return {
+        ...state,
+        translatedContent: action.payload
+      }
+    }
+  }
+})
+
+export const { setTranslating, setTranslatedContent } = translateSlice.actions
+
+export default translateSlice.reducer