根据是否发起人，设置表单可编辑状态

oa-back/ruoyi-flowable/src/main/java/com/ruoyi/flowable/service/impl/FlowTaskServiceImpl.java

         if (StringUtils.isNotBlank(queryVo.getName())){
             taskQuery.processDefinitionNameLike(queryVo.getName());
         }
+        if (StringUtils.isNotBlank(queryVo.getCategory())){
+            taskQuery.processCategoryIn(Collections.singleton(queryVo.getCategory()));
+        }
         page.setTotal(taskQuery.count());
         List<Task> taskList = taskQuery.listPage(queryVo.getPageSize() * (queryVo.getPageNum() - 1), queryVo.getPageSize());
         List<FlowTaskDto> flowList = new ArrayList<>();
                         // 获取节点信息
                         source = flowElement;
                         List<SequenceFlow> inFlows = FlowableUtils.getElementIncomingFlows(source);
-                        if (inFlows.size() == 1) {
-                            FlowElement sourceFlowElement = inFlows.get(0).getSourceFlowElement();
+                        for (SequenceFlow inFlow: inFlows) {
+                            FlowElement sourceFlowElement = inFlow.getSourceFlowElement();
                             if (sourceFlowElement instanceof StartEvent) {// 源是开始节点
                                 isStartNode = true;
                             }
                 result.put("formKeyExist", true);
                 return AjaxResult.success("", result);
             } else {
-                result.put("formData", parameters.get("variables"));
+                Map<String, Object> newParameters = JSON.parseObject(JSON.toJSONString(parameters.get("variables")), Map.class);
+                FlowTaskVo flowTaskVo = new FlowTaskVo();
+                flowTaskVo.setTaskId(taskId);
+                newParameters.put("disabled", !((Boolean) checkIsStartUserNode(flowTaskVo).get("data")));
+                result.put("formData", newParameters);
                 return AjaxResult.success("", result);
             }
         } else {

oa-ui/src/views/flowable/task/todo/detail/index.vue

               <!--                <el-button  icon="el-icon-edit-outline" type="primary" size="mini" @click="handleDelegate">委派</el-button>-->
               <!--                <el-button  icon="el-icon-edit-outline" type="primary" size="mini" @click="handleAssign">转办</el-button>-->
               <!--                <el-button  icon="el-icon-edit-outline" type="primary" size="mini" @click="handleDelegate">签收</el-button>-->
-              <!--              <el-button icon="el-icon-refresh-left" type="warning" size="mini" @click="handleReturn">退回</el-button>-->
+                           <el-button icon="el-icon-refresh-left" type="warning" size="mini" @click="handleReturn">退回</el-button>
                            <el-button icon="el-icon-circle-close" type="danger" size="mini" @click="handleReject">驳回</el-button>
             </div>
           </el-col>
   getNextFlowNode,
   delegate,
   flowTaskForm,
+  checkIsStartUserNode
 } from "@/api/flowable/todo";
 import flow from '@/views/flowable/task/todo/detail/flow'
 import "@riophae/vue-treeselect/dist/vue-treeselect.css";