From ba65c21a0b65b946da6964b41144f70c556cb119 Mon Sep 17 00:00:00 2001
From: kuaifan <aipaw@live.cn>
Date: Sun, 19 Jun 2022 10:42:39 +0800
Subject: [PATCH] =?UTF-8?q?perf:=20=E6=96=87=E4=BB=B6=E6=B5=8F=E8=A7=88?=
 =?UTF-8?q?=E6=94=AF=E6=8C=81=E6=BB=91=E5=8A=A8=E8=BF=94=E5=9B=9E=E4=B8=8A?=
 =?UTF-8?q?=E4=B8=80=E4=B8=AA=E6=96=87=E4=BB=B6=E5=A4=B9?=
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---
 .../assets/js/components/Mobile/Back.vue      | 33 ++++++++++++++++++-
 1 file changed, 32 insertions(+), 1 deletion(-)

diff --git a/resources/assets/js/components/Mobile/Back.vue b/resources/assets/js/components/Mobile/Back.vue
index 56377f674..229e60709 100644
--- a/resources/assets/js/components/Mobile/Back.vue
+++ b/resources/assets/js/components/Mobile/Back.vue
@@ -6,6 +6,8 @@
 </template>
 
 <script>
+import {mapState} from "vuex";
+
 export default {
     name: "MobileBack",
     props: {
@@ -42,6 +44,8 @@ export default {
     },
 
     computed: {
+        ...mapState(['files']),
+
         style() {
             const offset = 135;
             const top = Math.max(offset, this.y) + this.windowScrollY,
@@ -51,6 +55,15 @@ export default {
                 left: this.x > 20 ? 0 : '-50px',
             }
         },
+
+        routeName() {
+            return this.$route.name
+        },
+
+        fileFolderId() {
+            const {folderId} = this.$route.params;
+            return parseInt(/^\d+$/.test(folderId) ? folderId : 0);
+        },
     },
 
     watch: {
@@ -100,13 +113,31 @@ export default {
             if (!this.showTabbar) {
                 return true;
             }
-            return this.$Modal.visibles().length > 0;
+            if (this.$Modal.visibles().length > 0) {
+                return true;
+            }
+            if (this.fileFolderId > 0) {
+                return true;
+            }
+            return false;
         },
 
         onBack() {
             if (this.$Modal.removeLast()) {
                 return;
             }
+            if (this.fileFolderId > 0) {
+                const file = this.files.find(({id, permission}) => id == this.fileFolderId && permission > -1)
+                if (file) {
+                    const prevFile = this.files.find(({id, permission}) => id == file.pid && permission > -1)
+                    if (prevFile) {
+                        this.goForward({name: 'manage-file', params: {folderId: prevFile.id, fileId: null}});
+                        return;
+                    }
+                }
+                this.goForward({name: 'manage-file'});
+                return;
+            }
             this.goBack();
         },