首页定时器

ruoyi-ui/src/views/index.vue

@@ -156,22 +156,100 @@ export default {
       documentList: [],
       executingTasks: [],
       pendingTasks: [],
-      timer: null
+      timer: null,
+      isCurrentPageActive: true // 当前页面是否激活
     }
   },
   created() {
     this.getListData()
-    this.timer = setInterval(() => {
-      this.getListData()
-    }, 30000)
+    this.startTimer()
   },
+  mounted() {
+     // 监听页面可见性变化
+     document.addEventListener('visibilitychange', this.handleVisibilityChange)
+     // 监听窗口焦点变化
+     window.addEventListener('focus', this.handleWindowFocus)
+     window.addEventListener('blur', this.handleWindowBlur)
+     // 初始检查页面状态
+     this.checkPageStatus()
+   },
+   activated() {
+     // 当组件被激活时（如从keep-alive缓存中恢复）
+     this.checkPageStatus()
+   },
+   deactivated() {
+     // 当组件被停用时（如被keep-alive缓存）
+     this.stopTimer()
+   },
   beforeDestroy() {
-    if (this.timer) {
-      clearInterval(this.timer)
-      this.timer = null
+    this.stopTimer()
+    // 移除事件监听器
+    document.removeEventListener('visibilitychange', this.handleVisibilityChange)
+    window.removeEventListener('focus', this.handleWindowFocus)
+    window.removeEventListener('blur', this.handleWindowBlur)
+  },
+  // 监听路由变化
+  watch: {
+    '$route'(to, from) {
+      // 当路由变化时，检查是否为首页
+      this.checkPageStatus()
     }
   },
   methods: {
+    // 启动定时器
+    startTimer() {
+      if (!this.timer && this.isCurrentPageActive) {
+        this.timer = setInterval(() => {
+          if (this.isCurrentPageActive) {
+            this.getListData()
+          }
+        }, 8000)
+      }
+    },
+    // 停止定时器
+    stopTimer() {
+      if (this.timer) {
+        clearInterval(this.timer)
+        this.timer = null
+      }
+    },
+    // 检查页面状态
+    checkPageStatus() {
+      // 检查当前路由是否为首页
+      const isHomePage = this.$route.path === '/' || this.$route.name === 'Index'
+      // 检查页面是否可见
+      const isPageVisible = !document.hidden
+      // 检查窗口是否有焦点
+      const isWindowFocused = document.hasFocus()
+
+      const shouldBeActive = isHomePage && isPageVisible && isWindowFocused
+
+      if (shouldBeActive !== this.isCurrentPageActive) {
+        this.isCurrentPageActive = shouldBeActive
+
+        if (this.isCurrentPageActive) {
+          console.log('首页激活，启动定时器')
+          this.startTimer()
+          // 立即刷新一次数据
+          this.getListData()
+        } else {
+          console.log('首页非激活状态，停止定时器')
+          this.stopTimer()
+        }
+      }
+    },
+    // 处理页面可见性变化
+    handleVisibilityChange() {
+      this.checkPageStatus()
+    },
+    // 处理窗口获得焦点
+    handleWindowFocus() {
+      this.checkPageStatus()
+    },
+    // 处理窗口失去焦点
+    handleWindowBlur() {
+      this.checkPageStatus()
+    },
     getListData() {
       // 所有单据数量
       finishCount().then(response => {