fix(query-core): focus check issue from retryer for refetchIntervallnBackground

packages/query-core/src/__tests__/query.test.tsx

@@ -1192,4 +1192,135 @@ describe('query', () => {
     expect(initialDataFn).toHaveBeenCalledTimes(1)
     expect(query.state.data).toBe('initial data')
   })
+
+
+  it('should continue retry in background when refetchIntervalInBackground is true', async () => {
+    const key = queryKey()
+
+    // make page unfocused
+    const visibilityMock = mockVisibilityState('hidden')
+
+    let count = 0
+    let result
+
+    const promise = queryClient.fetchQuery({
+      queryKey: key,
+      queryFn: () => {
+        count++
+
+        if (count === 3) {
+          return `data${count}`
+        }
+
+        throw new Error(`error${count}`)
+      },
+      retry: 3,
+      retryDelay: 1,
+      refetchIntervalInBackground: true,
+    })
+
+    promise.then((data) => {
+      result = data
+    })
+
+    // Check if we do not have a result yet
+    expect(result).toBeUndefined()
+
+    // Query should continue retrying in background
+    await vi.advanceTimersByTimeAsync(50)
+    expect(result).toBe('data3')
+
+    // Reset visibilityState to original value
+    visibilityMock.mockRestore()
+  })
+
+  it('should pause retry when unfocused if refetchIntervalInBackground is false', async () => {
+    const key = queryKey()
+
+    // make page unfocused
+    const visibilityMock = mockVisibilityState('hidden')
+
+    let count = 0
+    let result
+
+    const promise = queryClient.fetchQuery({
+      queryKey: key,
+      queryFn: () => {
+        count++
+
+        if (count === 3) {
+          return `data${count}`
+        }
+
+        throw new Error(`error${count}`)
+      },
+      retry: 3,
+      retryDelay: 1,
+      refetchIntervalInBackground: false,
+    })
+
+    promise.then((data) => {
+      result = data
+    })
+
+    // Check if we do not have a result
+    expect(result).toBeUndefined()
+
+    // Check if the query is really paused
+    await vi.advanceTimersByTimeAsync(50)
+    expect(result).toBeUndefined()
+
+    // Reset visibilityState to original value
+    visibilityMock.mockRestore()
+    window.dispatchEvent(new Event('visibilitychange'))
+
+    // Query should now continue and resolve
+    await vi.advanceTimersByTimeAsync(50)
+    expect(result).toBe('data3')
+  })
+
+  it('should pause retry when unfocused if refetchIntervalInBackground is undefined (default behavior)', async () => {
+    const key = queryKey()
+
+    // make page unfocused
+    const visibilityMock = mockVisibilityState('hidden')
+
+    let count = 0
+    let result
+
+    const promise = queryClient.fetchQuery({
+      queryKey: key,
+      queryFn: () => {
+        count++
+
+        if (count === 3) {
+          return `data${count}`
+        }
+
+        throw new Error(`error${count}`)
+      },
+      retry: 3,
+      retryDelay: 1,
+      // refetchIntervalInBackground is not set (undefined by default)
+    })
+
+    promise.then((data) => {
+      result = data
+    })
+
+    // Check if we do not have a result
+    expect(result).toBeUndefined()
+
+    // Check if the query is really paused
+    await vi.advanceTimersByTimeAsync(50)
+    expect(result).toBeUndefined()
+
+    // Reset visibilityState to original value
+    visibilityMock.mockRestore()
+    window.dispatchEvent(new Event('visibilitychange'))
+
+    // Query should now continue and resolve
+    await vi.advanceTimersByTimeAsync(50)
+    expect(result).toBe('data3')
+  })
 })

packages/query-core/src/query.ts

@@ -378,7 +378,7 @@ export class Query<
   ): Promise<TData> {
     if (
       this.state.fetchStatus !== 'idle' &&
-      // If the promise in the retyer is already rejected, we have to definitely
+      // If the promise in the retryer is already rejected, we have to definitely
       // re-start the fetch; there is a chance that the query is still in a
       // pending state when that happens
       this.#retryer?.status() !== 'rejected'
@@ -521,6 +521,7 @@ export class Query<
       retryDelay: context.options.retryDelay,
       networkMode: context.options.networkMode,
       canRun: () => true,
+      refetchIntervalInBackground: this.options.refetchIntervalInBackground,
     })
 
     try {

packages/query-core/src/retryer.ts

@@ -1,7 +1,7 @@
-import { focusManager } from './focusManager'
 import { onlineManager } from './onlineManager'
 import { pendingThenable } from './thenable'
 import { isServer, sleep } from './utils'
+import { focusManager } from './focusManager'
 import type { Thenable } from './thenable'
 import type { CancelOptions, DefaultError, NetworkMode } from './types'
 
@@ -18,6 +18,7 @@ interface RetryerConfig<TData = unknown, TError = DefaultError> {
   retryDelay?: RetryDelayValue<TError>
   networkMode: NetworkMode | undefined
   canRun: () => boolean
+  refetchIntervalInBackground?: boolean
 }
 
 export interface Retryer<TData = unknown> {
@@ -100,7 +101,7 @@ export function createRetryer<TData = unknown, TError = DefaultError>(
   }
 
   const canContinue = () =>
-    focusManager.isFocused() &&
+    (config.refetchIntervalInBackground === true || focusManager.isFocused()) &&
     (config.networkMode === 'always' || onlineManager.isOnline()) &&
     config.canRun()
 

packages/query-core/src/types.ts

@@ -275,6 +275,11 @@ export interface QueryOptions<
    * Maximum number of pages to store in the data of an infinite query.
    */
   maxPages?: number
+  /**
+   * If set to `true`, the query will continue to refetch while their tab/window is in the background.
+   * Defaults to `false`.
+   */
+  refetchIntervalInBackground?: boolean
 }
 
 export interface InitialPageParam<TPageParam = unknown> {