:art: fix https://github.com/siyuan-note/siyuan/issues/7852

app/src/assets/scss/component/_menu.scss

@@ -42,7 +42,7 @@
 
     .b3-menu {
       &__submenu {
-        top: 49px;
+        top: 48.5px;
         left: 0;
         bottom: 0;
         max-height: none;

app/src/menus/Menu.ts

@@ -120,13 +120,18 @@ export class Menu {
         setPosition(this.element, options.x - (isLeft ? window.siyuan.menus.menu.element.clientWidth : 0), options.y, options.h, options.w);
     }
 
-    public fullscreen() {
+    public fullscreen(position: "bottom" | "all" = "all") {
         this.element.classList.add("b3-menu--fullscreen");
         this.element.insertAdjacentHTML("afterbegin", `<div class="b3-menu__title">
 <svg class="b3-menu__icon"><use xlink:href="#iconLeft"></use></svg>
 <span class="b3-menu__label">${window.siyuan.languages.back}</span>
 </div><button class="b3-menu__separator"></button>`);
-        this.popup({x: 0, y: 0});
+        if (position === "bottom" ) {
+            this.element.querySelectorAll(".b3-menu__submenu").forEach((item:HTMLElement) => {
+                item.style.top = "calc(50vh + 48.5px)";
+            })
+        }
+        this.popup({x: 0, y: position === "bottom" ? window.innerHeight / 2 : 0});
     }
 }
 

app/src/mobile/util/MobileFiles.ts

@@ -12,6 +12,7 @@ import {unicode2Emoji} from "../../emoji";
 import {mountHelp, newNotebook} from "../../util/mount";
 import {confirmDialog} from "../../dialog/confirmDialog";
 import {newFile} from "../../util/newFile";
+import {isMobile} from "../../util/functions";
 
 export class MobileFiles extends Model {
     public element: HTMLElement;
@@ -175,15 +176,28 @@ export class MobileFiles extends Model {
                             if (type === "new") {
                                 newFile(notebookId, pathString);
                             } else if (type === "more-root") {
-                                initNavigationMenu(target.parentElement).popup({x, y});
+                                initNavigationMenu(target.parentElement)
+                                if (isMobile()) {
+                                    window.siyuan.menus.menu.fullscreen("bottom");
+                                } else {
+                                    window.siyuan.menus.menu.popup({
+                                        x,
+                                        y
+                                    });
+                                }
                                 window.siyuan.menus.menu.element.style.zIndex = "310";
                             }
                         }
                         if (type === "more-file") {
-                            initFileMenu(notebookId, pathString, target.parentElement).popup({
-                                x,
-                                y
-                            });
+                            initFileMenu(notebookId, pathString, target.parentElement);
+                            if (isMobile()) {
+                                window.siyuan.menus.menu.fullscreen("bottom");
+                            } else {
+                                window.siyuan.menus.menu.popup({
+                                    x,
+                                    y
+                                });
+                            }
                             window.siyuan.menus.menu.element.style.zIndex = "310";
                         }
                     }