change

src/layout/background/useResource.ts

@@ -40,20 +40,13 @@ export default function useResource(tag: Ref<string>, type: string) {
           if (videoArr.includes(suffix)) {
             // 内部视频
             // 先显示截图，再去数据库看是否有存货
-
             resource.video = ''
             resource.image = val + '?x-oss-process=video/snapshot,t_0,f_jpg,m_fast'
             resource.brief = val + '?x-oss-process=video/snapshot,t_0,f_jpg,w_400,h_225,m_fast'
             db.getItem<{ tag: string; file: Blob }[]>('videoList').then((res) => {
-              if (!res) return
+              const handle = (res: any[] | undefined) => {
-              const item = res.find((item) => item.tag === val)
+                res = res || []
-              if (item) {
-
-                resource.video = URL.createObjectURL(item.file)
-                resource.type = 'local'
-              } else {
                 // 不存在，需要存入
-
                 fetch(val)
                   .then((res) => res.blob())
                   .then((blob) => {
@@ -61,12 +54,23 @@ export default function useResource(tag: Ref<string>, type: string) {
                       res.pop()
                     }
                     res.unshift({ tag: val, file: blob })
+                    db.setItem('videoList', res)
                     resource.video = URL.createObjectURL(blob)
                     resource.type = 'own'
                   })
               }
+              if (!res) {
+                handle(undefined)
+                return
+              }
+              const item = res.find((item) => item.tag === val)
+              if (item) {
+                resource.video = URL.createObjectURL(item.file)
+                resource.type = 'local'
+              } else {
+                handle(res)
+              }
             })
-       
           } else {
             // 图片
             resource.image = val
@@ -100,7 +104,6 @@ export default function useResource(tag: Ref<string>, type: string) {
 
           const url = URL.createObjectURL(item.file)
 
-          
           resource.image = item.type === 'image' ? url : ''
           resource.video = item.type === 'video' ? url : ''
           resource.brief = url