fix(frontend): 保持重新生成退出前详情

frontend/src/views/data-process/DataProcessCreateView.vue

@@ -103,7 +103,6 @@ const selectedPreviewIdsByFile = ref<Record<string, string>>({})
 const dirty = ref(false)
 const modelSubmitLoading = ref(false)
 let allowLeave = false
-
 const {
   generation,
   results,
@@ -119,7 +118,7 @@ const {
 } = useDataProcessGeneration({
   taskId,
   dirty,
-  beforeGenerate: syncPreviewChanges,
+  beforeGenerate: beforeStartGeneration,
 })
 const { enqueueSourceUpload, sourceUploading } = useDataProcessSourceUpload({
   taskId,
@@ -134,7 +133,6 @@ const { enqueueSourceUpload, sourceUploading } = useDataProcessSourceUpload({
 const hasUnfinishedUploads = computed(() => uploadedFiles.value.some((file) => (
   file.status !== 'ready' || !file.sourceFileId
 )))
-
 const modifiedPreviewCount = computed(() => previewItems.value.filter((item) => item.status !== 'original').length)
 const previewItemsByFile = computed(() => {
   const grouped = new Map<string, PreviewItem[]>()
@@ -171,7 +169,6 @@ const primaryActionLabel = computed(() => {
   if (generation.status === 'failed') return '重新生成'
   return '开始生成'
 })
-
 const primaryActionIcon = computed(() => {
   if (currentStepId.value === 'results') return 'fa-check'
   if (currentStepId.value === 'generate' && generation.status !== 'success') return 'fa-play'
@@ -181,7 +178,6 @@ const primaryActionIcon = computed(() => {
 const previousStepLabel = computed(() => currentStep.value > 0
   ? WIZARD_STEPS[currentStep.value - 1].title
   : '')
-
 function goToStep(stepId: StepId) {
   const nextStepIndex = WIZARD_STEPS.findIndex((step) => step.id === stepId)
   if (nextStepIndex >= 0) currentStep.value = nextStepIndex
@@ -280,24 +276,19 @@ function mapPreviewItem(item: DataProcessPreviewItem): PreviewItem {
 function previewAffectingOptions() {
   return previewAffectingOptionsFor(processType.value, structuredOptions.value, unstructuredOptions.value)
 }
-
 function generationAffectingOptions() {
   return generationAffectingOptionsFor(processType.value, structuredOptions.value, unstructuredOptions.value)
 }
-
 const generationOptionsSignature = computed(() => JSON.stringify(generationAffectingOptions()))
-
 function buildPreviewConfigSignature() {
   return `${PREVIEW_MODEL_VERSION}:${processType.value}:${JSON.stringify(previewAffectingOptions())}`
 }
-
 function buildPreviewSignature() {
   const filesSignature = uploadedFiles.value
     .map((file) => `${file.uid}:${file.name}:${file.size}:${file.checksumSha256 || file.count}`)
     .join('|')
   return `${buildPreviewConfigSignature()}:${filesSignature}`
 }
-
 const {
   isRegeneration,
   originalProcessType,
@@ -307,6 +298,9 @@ const {
   loadSource: loadRegenerationSource,
   confirmPreviewConfigChange,
   prepareRegeneration,
+  confirmStartGeneration,
+  returnToDetail,
+  leaveWarning,
 } = useDataProcessRegeneration({
   task,
   processType,
@@ -324,11 +318,14 @@ const {
   mapPreviewItem,
   resetDownstream,
 })
-const leaveWarningMessage = computed(() => regenerationPrepared.value
-  ? '仍有尚未完成的本地操作；已提交到服务端的修改不会因离开页面而撤销。'
-  : '当前存在未保存修改，离开后这些修改将不会保留。')
-const leaveConfirmText = computed(() => regenerationPrepared.value ? '离开页面' : '放弃修改')
-
+async function beforeStartGeneration() {
+  return confirmStartGeneration(
+    options => confirmDialogRef.value?.open(options) ?? Promise.resolve(false),
+    syncPreviewChanges,
+  )
+}
+const leaveWarningMessage = computed(() => leaveWarning(generation.status))
+const leaveConfirmText = computed(() => isRegeneration.value ? '返回详情' : '放弃修改')
 watch(
   [() => task.name, () => task.description, processType, structuredOptions, unstructuredOptions, externalSource],
   () => {
@@ -531,9 +528,9 @@ async function nextFromModel() {
       const regenerated = await prepareRegeneration(taskPayload())
       taskId.value = String(regenerated.task.id)
       if (regenerated.preview_invalidated) {
-        ElMessage.info('切分配置已变化，现有源文件将在下一步按新配置重新切分')
+        ElMessage.info('切分配置已保存，后续将按新配置重新切分；点击“开始生成”前，原生成结果和已发布数据保持不变')
       } else if (regenerated.published_outputs_preserved) {
-        ElMessage.info('已保留原切片；已发布的三个数据集将在重新发布前保持不变')
+        ElMessage.info('重新生成配置已保存；点击“开始生成”前，原生成结果和已发布数据保持不变')
       }
     } else {
       const saved = taskId.value
@@ -807,8 +804,7 @@ async function saveTask() {
 
 async function handleCancel() {
   if (!dirty.value) {
-    allowLeave = true
-    router.back()
+    await returnToPreviousPage()
     return
   }
   const confirmed = await confirmDialogRef.value?.open({
@@ -819,7 +815,12 @@ async function handleCancel() {
     tone: 'danger',
   })
   if (!confirmed) return
+  await returnToPreviousPage()
+}
+
+async function returnToPreviousPage() {
   allowLeave = true
+  if (isRegeneration.value && await returnToDetail()) return
   router.back()
 }
 
@@ -973,7 +974,7 @@ onMounted(() => {
         <el-button v-if="currentStep > 0" :disabled="previewBuilding || sourceUploading" @click="handleBack">
           <i class="fa fa-arrow-left" style="margin-right: 6px;" /> 返回：{{ previousStepLabel }}
         </el-button>
-        <el-button v-else @click="handleCancel">取消</el-button>
+        <el-button v-else @click="handleCancel">{{ isRegeneration ? '返回详情' : '取消' }}</el-button>
       </div>
       <div class="footer-center">
       </div>