全局导航服务

src/service/app/navdata-service.ts

+export interface NavDataElement {
+
+    /**
+     * 主键标识
+     *
+     * @memberof NavDataElement
+     */
+    id: string;
+
+    /**
+     * 视图标题
+     *
+     * @memberof NavDataElement
+     */
+    title: any;
+
+    /**
+     * 上下文
+     *
+     * @memberof NavDataElement
+     */
+    context:any;
+
+    /**
+     * 视图参数
+     *
+     * @memberof NavDataElement
+     */
+    viewparams:any;
+
+    /**
+     * 视图数据
+     *
+     * @memberof NavDataElement
+     */   
+    data:any;
+
+}
+
+/**
+ * 导航数据服务
+ * 
+ * @export
+ * @class CodeListService
+ */
+export default class NavDataService {
+
+    /**
+     * 导航数据栈
+     * 
+     * @memberof NavDataService
+     */
+    public navDataStack:Array<NavDataElement> = [];
+
+    /**
+     * 导航数据存储仓库
+     * 
+     * @memberof NavDataService
+     */
+    public sessionStore:any;
+
+    /**
+     * 初始化实例
+     * 
+     * @memberof NavDataService
+     */
+    constructor(opts:any = {}){
+        this.sessionStore = window.sessionStorage;
+        this.initNavData();
+    }
+
+    /**
+     * 初始化基础导航数据
+     * 
+     * @memberof NavDataService
+     */
+    public initNavData(){
+        if(this.sessionStore && this.sessionStore.getItem('srfnavdata')){
+            this.navDataStack = JSON.parse(this.sessionStore.getItem('srfnavdata'));
+        }
+    }
+
+    /**
+     * 添加基础导航数据到栈中
+     * 
+     * @memberof NavDataService
+     */
+    public addNavData(curNavData:NavDataElement){
+        if(this.navDataStack.length >0){
+            let tempIndex:number = this.navDataStack.findIndex((element:NavDataElement) =>{
+                return Object.is(element.id,curNavData.id);
+            })
+            if(tempIndex === -1){
+                this.navDataStack.push(curNavData);
+                this.sessionStore.setItem('srfnavdata',JSON.stringify(this.navDataStack));
+                return curNavData;
+            }else{
+                this.setNavDataById(curNavData.id,curNavData);
+            }
+        }else{
+            this.navDataStack.push(curNavData);
+            this.sessionStore.setItem('srfnavdata',JSON.stringify(this.navDataStack));
+            return curNavData;
+        }
+        console.log(this.navDataStack);
+    }
+
+    /**
+     * 设置指定数据到基础导航数据栈中
+     * 
+     * @memberof NavDataService
+     */
+    public setNavDataById(id:string,curNavData:NavDataElement){
+        if(this.navDataStack.length >0){
+            let tempIndex:number = this.navDataStack.findIndex((element:NavDataElement) =>{
+                return Object.is(element.id,id);
+            })
+            this.navDataStack[tempIndex] = curNavData;
+            this.sessionStore.setItem('srfnavdata',JSON.stringify(this.navDataStack));
+            return curNavData;
+        }else{
+            return null;
+        }
+    }
+
+    /**
+     * 从导航数据栈中删除指定数据
+     * 
+     * @memberof NavDataService
+     */
+    public removeNavData(id:string){
+        if(this.navDataStack.length >0){
+            let tempIndex:number = this.navDataStack.findIndex((element:NavDataElement) =>{
+                return Object.is(element.id,id);
+            })
+            let removeNavData = this.navDataStack.splice(tempIndex);
+            this.sessionStore.setItem('srfnavdata',JSON.stringify(this.navDataStack));
+            return removeNavData;
+        }else{
+            return null;
+        }
+    }
+
+    /**
+     * 从导航数据栈中获取指定数据
+     * 
+     * @memberof NavDataService
+     */
+    public getNavDataById(id:string){
+        if(this.navDataStack.length >0){
+            let tempIndex:number = this.navDataStack.findIndex((element:NavDataElement) =>{
+                return Object.is(element.id,id);
+            })
+            return this.navDataStack[tempIndex];
+        }else{
+            return null;
+        }
+    }
+
+    /**
+     * 从导航数据栈中获取指定数据的前一条数据
+     * 
+     * @memberof NavDataService
+     */
+    public getPreNavDataById(id:string){
+        if(this.navDataStack.length >0){
+            let tempIndex:number = this.navDataStack.findIndex((element:NavDataElement) =>{
+                return Object.is(element.id,id);
+            })
+            return this.navDataStack[tempIndex-1];
+        }else{
+            return null;
+        }
+    }
+}
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