Pre Merge pull request !711 from Lemon/feature/bpm-流程模型表单信息优化

src/components/FormPreviewDialog/index.vue

@@ -0,0 +1,218 @@
+<template>
+  <el-dialog
+    :title="title"
+    :model-value="modelValue"
+    @update:model-value="$emit('update:modelValue', $event)"
+    @open="handleDialogOpen"
+    :fullscreen="false"
+    width="800"
+    class="form-preview-dialog"
+    destroy-on-close
+    draggable
+    :close-on-click-modal="false"
+  >
+    <div class="form-preview-wrapper">
+      <div class="form-preview-container" ref="containerRef">
+        <form-create :rule="rule" :option="option" />
+      </div>
+      
+      <!-- 滚动按钮 -->
+      <div class="scroll-buttons" v-if="isDialogOpen">
+        <div 
+          v-show="showTopBtn"
+          class="scroll-btn"
+          @click="scrollToTop"
+        >
+          <el-icon :size="20">
+            <ArrowUpBold />
+          </el-icon>
+        </div>
+        <div 
+          v-show="showBottomBtn"
+          class="scroll-btn"
+          @click="scrollToBottom"
+        >
+          <el-icon :size="20">
+            <ArrowDownBold />
+          </el-icon>
+        </div>
+      </div>
+    </div>
+  </el-dialog>
+</template>
+
+<script setup lang="ts">
+import { ref, onMounted, onUnmounted, nextTick, watch } from 'vue'
+import { ArrowUpBold, ArrowDownBold } from '@element-plus/icons-vue'
+import { useDebounceFn } from '@vueuse/core'
+
+defineOptions({ name: 'FormPreviewDialog' })
+
+const props = defineProps({
+  modelValue: {
+    type: Boolean,
+    required: true
+  },
+  title: {
+    type: String,
+    default: '表单详情'
+  },
+  rule: {
+    type: Array,
+    required: true
+  },
+  option: {
+    type: Object,
+    required: true
+  },
+  scrollThreshold: {
+    type: Number,
+    default: 100
+  }
+})
+
+defineEmits(['update:modelValue'])
+
+const containerRef = ref<HTMLElement | null>(null)
+const showTopBtn = ref(false)
+const showBottomBtn = ref(false)
+const isDialogOpen = ref(false)
+
+// 使用防抖优化滚动性能
+const handleScroll = useDebounceFn(() => {
+  const container = containerRef.value
+  if (container) {
+    const { scrollTop, scrollHeight, clientHeight } = container
+    showTopBtn.value = scrollTop > props.scrollThreshold
+    showBottomBtn.value = scrollTop + clientHeight < scrollHeight - props.scrollThreshold
+  }
+}, 100)
+
+const scrollToTop = () => {
+  const container = containerRef.value
+  if (container) {
+    container.scrollTo({
+      top: 0,
+      behavior: 'smooth'
+    })
+  }
+}
+
+const scrollToBottom = () => {
+  const container = containerRef.value
+  if (container) {
+    container.scrollTo({
+      top: container.scrollHeight,
+      behavior: 'smooth'
+    })
+  }
+}
+
+const initScrollButtons = async () => {
+  await nextTick()
+  // 等待内容渲染完成后再检查滚动状态
+  setTimeout(() => {
+    handleScroll()
+  }, 300)
+}
+
+const handleDialogOpen = () => {
+  isDialogOpen.value = true
+  // 初始化滚动监听
+  containerRef.value?.addEventListener('scroll', handleScroll)
+  // 初始化滚动按钮状态
+  initScrollButtons()
+}
+
+onUnmounted(() => {
+  containerRef.value?.removeEventListener('scroll', handleScroll)
+})
+
+// 监听 modelValue 变化，当对话框关闭时重置状态
+watch(() => props.modelValue, (newVal) => {
+  if (!newVal) {
+    isDialogOpen.value = false
+    showTopBtn.value = false
+    showBottomBtn.value = false
+  }
+})
+</script>
+
+<style lang="scss">
+.form-preview-dialog.el-dialog {
+  margin: 5vh auto !important;
+  
+  .el-dialog__body {
+    position: relative;
+    padding: 0;
+    height: 70vh;
+    max-height: 800px;
+  }
+
+  .el-dialog__header {
+    cursor: move;
+    margin: 0;
+    padding: 15px 20px;
+    border-bottom: 1px solid var(--el-border-color-lighter);
+  }
+}
+</style>
+
+<style lang="scss" scoped>
+.form-preview-wrapper {
+  position: relative;
+  height: 100%;
+  width: 100%;
+}
+
+.form-preview-container {
+  height: 100%;
+  width: 100%;
+  overflow-y: auto;
+  padding: 20px;
+  
+  &::-webkit-scrollbar {
+    width: 6px;
+  }
+  
+  &::-webkit-scrollbar-thumb {
+    background-color: var(--el-color-primary-light-5);
+    border-radius: 3px;
+  }
+  
+  &::-webkit-scrollbar-track {
+    background-color: #f5f7fa;
+  }
+}
+
+.scroll-buttons {
+  position: absolute;
+  right: 20px;
+  bottom: 20px;
+  display: flex;
+  flex-direction: column;
+  gap: 10px;
+  z-index: 2001;
+
+  .scroll-btn {
+    background-color: var(--el-color-primary);
+    color: white;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    width: 36px;
+    height: 36px;
+    border-radius: 50%;
+    box-shadow: 0 2px 12px 0 rgba(0,0,0,.1);
+    cursor: pointer;
+    transition: all 0.3s;
+    opacity: 0.8;
+
+    &:hover {
+      background-color: var(--el-color-primary);
+      opacity: 1;
+      transform: scale(1.1);
+    }
+  }
+}
+</style> 

src/views/bpm/model/CategoryDraggableModel.vue

@@ -272,9 +272,11 @@
   </Dialog>
 
   <!-- 弹窗：表单详情 -->
-  <Dialog title="表单详情" :fullscreen="true" v-model="formDetailVisible">
-    <form-create :rule="formDetailPreview.rule" :option="formDetailPreview.option" />
-  </Dialog>
+  <FormPreviewDialog
+    v-model="formDetailVisible"
+    :rule="formDetailPreview.rule"
+    :option="formDetailPreview.option"
+  />
 </template>
 
 <script lang="ts" setup>
@@ -292,6 +294,7 @@ import { useAppStore } from '@/store/modules/app'
 import { cloneDeep, isEqual } from 'lodash-es'
 import { useDebounceFn } from '@vueuse/core'
 import { subString } from '@/utils/index'
+import FormPreviewDialog from '@/components/FormPreviewDialog/index.vue'
 
 defineOptions({ name: 'BpmModel' })
 
@@ -661,4 +664,26 @@ watchEffect(() => {
     transform: translateZ(0);
   }
 }
+
+.form-detail-container {
+  height: 100%;
+  width: 100%;
+  overflow-y: auto;
+  padding: 20px;
+  position: relative;
+  
+  // 保留滚动条样式
+  &::-webkit-scrollbar {
+    width: 6px;
+  }
+  
+  &::-webkit-scrollbar-thumb {
+    background-color: var(--el-color-primary-light-5);
+    border-radius: 3px;
+  }
+  
+  &::-webkit-scrollbar-track {
+    background-color: #f5f7fa;
+  }
+}
 </style>