预览按钮没有pdf置灰

src/views/data-fill/components/ListItem.vue

@@ -20,7 +20,7 @@
                                     </el-button>
                                 </HcTooltip>
                                 <HcTooltip keys="wbs_preview_table" v-if="isStatus != 3">
-                                    <el-button type="info" plain disabled v-if="item['isBussShow'] === 2 || item['isTabPdf'] === 1">预览</el-button>
+                                    <el-button type="info" plain disabled v-if="item['isBussShow'] === 2 || item['isTabPdf'] === 1|| item['pdfUrl'] === ''">预览</el-button>
                                     <el-button type="primary" plain @click.stop="previewClick(item,index)" v-else>预览</el-button>
                                 </HcTooltip>
                                 <HcTooltip keys="wbs_upload_table">