fix(tabs-list-mode): layout switch

app/src/main/java/com/nextcloud/client/preferences/AppPreferencesImpl.java

@@ -655,20 +655,26 @@ public long getPhotoSearchTimestamp() {
     }
 
     /**
-     * Get preference value for a folder. If folder is not set itself, it finds an ancestor that is set.
+     * Retrieves a preference value for a specific folder.
+     * <p>
+     * If the folder itself does not have the preference set, the method searches up its ancestor hierarchy
+     * until a value is found. If no value is found in any ancestor, the provided {@code defaultValue} is returned.
+     * <p>
+     * Anonymous users or {@code null} folders will always return the {@code defaultValue}.
      *
-     * @param context        Context object.
-     * @param preferenceName Name of the preference to lookup.
-     * @param folder         Folder.
-     * @param defaultValue   Fallback value in case no ancestor is set.
-     * @return Preference value
+     * @param context        The Android context.
+     * @param user           The user for whom the preference is queried.
+     * @param preferenceName The name/key of the preference to look up.
+     * @param folder         The folder to check.
+     * @param defaultValue   The value to return if no preference is set in the folder hierarchy.
+     * @return The preference value for the folder, or {@code defaultValue} if none is set.
      */
     private static String getFolderPreference(final Context context,
                                               final User user,
                                               final String preferenceName,
                                               final OCFile folder,
                                               final String defaultValue) {
-        if (user.isAnonymous()) {
+        if (user.isAnonymous() || folder == null) {
             return defaultValue;
         }
 

app/src/main/java/com/owncloud/android/ui/activity/DrawerActivity.java

@@ -557,6 +557,8 @@ private void onNavigationItemClicked(final MenuItem menuItem) {
             }
 
             closeDrawer();
+            setupHomeSearchToolbarWithSortAndListButtons();
+            updateActionBarTitleAndHomeButton(null);
         } else if (itemId == R.id.nav_favorites) {
             openFavoritesTab();
         } else if (itemId == R.id.nav_gallery) {
@@ -630,6 +632,8 @@ private void handleBottomNavigationViewClicks() {
                     fda.browseToRoot();
                 }
                 EventBus.getDefault().post(new ChangeMenuEvent());
+                setupHomeSearchToolbarWithSortAndListButtons();
+                updateActionBarTitleAndHomeButton(null);
             } else if (menuItemId == R.id.nav_favorites) {
                 openFavoritesTab();
             } else if (menuItemId == R.id.nav_assistant && !(this instanceof ComposeActivity)) {
@@ -706,8 +710,7 @@ private void resetFileDepth() {
         }
     }
 
-    protected void openSharedTab() {
-        resetFileDepth();
+    private void openSharedTab() {
         resetOnlyPersonalAndOnDevice();
         SearchEvent searchEvent = new SearchEvent("", SearchRemoteOperation.SearchType.SHARED_FILTER);
         launchActivityForSearch(searchEvent, R.id.nav_shared);

app/src/main/java/com/owncloud/android/ui/activity/FileDisplayActivity.kt

@@ -2767,7 +2767,6 @@ class FileDisplayActivity :
 
         listOfFilesFragment?.setCurrentSearchType(event)
         updateActionBarTitleAndHomeButton(null)
-        // listOfFilesFragment?.setActionBarTitle()
     }
 
     @Subscribe(threadMode = ThreadMode.MAIN)

app/src/main/java/com/owncloud/android/ui/fragment/ExtendedListFragment.kt

@@ -765,9 +765,13 @@ open class ExtendedListFragment :
         }
     }
 
-    protected fun setGridSwitchButton() {
+    protected fun setLayoutSwitchButton() {
+        setLayoutSwitchButton(isGridEnabled)
+    }
+
+    protected fun setLayoutSwitchButton(isGrid: Boolean) {
         mSwitchGridViewButton?.let {
-            if (isGridEnabled) {
+            if (isGrid) {
                 it.setContentDescription(getString(R.string.action_switch_list_view))
                 it.icon = ContextCompat.getDrawable(requireContext(), R.drawable.ic_view_list)
             } else {

app/src/main/java/com/owncloud/android/ui/fragment/LocalFileListFragment.java

@@ -134,7 +134,7 @@ public void onActivityCreated(Bundle savedInstanceState) {
             }
         }
 
-        setGridSwitchButton();
+        setLayoutSwitchButton();
 
         if (mSwitchGridViewButton != null) {
             mSwitchGridViewButton.setOnClickListener(v -> {
@@ -143,7 +143,7 @@ public void onActivityCreated(Bundle savedInstanceState) {
                 } else {
                     switchToGridView();
                 }
-                setGridSwitchButton();
+                setLayoutSwitchButton();
             });
         }
 

app/src/main/java/com/owncloud/android/ui/fragment/OCFileListFragment.java

@@ -435,7 +435,7 @@ public void onActivityCreated(Bundle savedInstanceState) {
                 } else {
                     setGridAsPreferred();
                 }
-                setGridSwitchButton();
+                setLayoutSwitchButton();
             });
         }
 
@@ -1573,17 +1573,9 @@ public void updateOCFile(@NonNull OCFile file) {
     }
 
     private void updateLayout() {
-        // decide grid vs list view
-        if (isGridViewPreferred(mFile)) {
-            switchToGridView();
-        } else {
-            switchToListView();
-        }
-
+        setLayoutViewMode();
         updateSortButton();
-        if (mSwitchGridViewButton != null) {
-            setGridSwitchButton();
-        }
+        setLayoutSwitchButton();
 
         setFabVisible(!mHideFab);
         slideHideBottomBehaviourForBottomNavigationView(!mHideFab);
@@ -1619,14 +1611,34 @@ public void sortFiles(FileSortOrder sortOrder) {
     }
 
     /**
-     * Determines if user set folder to grid or list view. If folder is not set itself, it finds a parent that is set
-     * (at least root is set).
+     * Determines whether a folder should be displayed in grid or list view.
+     * <p>
+     * The preference is checked for the given folder. If the folder itself does not have a preference set,
+     * it will fall back to its parent folder recursively until a preference is found (root folder is always set).
+     * Additionally, if a search event is active and is of type {@code SHARED_FILTER}, grid view is disabled.
      *
-     * @param folder Folder to check or null for root folder
-     * @return 'true' is folder should be shown in grid mode, 'false' if list mode is preferred.
+     * @param folder The folder to check, or {@code null} to refer to the root folder.
+     * @return {@code true} if the folder should be displayed in grid mode, {@code false} if list mode is preferred.
      */
-    public boolean isGridViewPreferred(@Nullable OCFile folder) {
-        return FOLDER_LAYOUT_GRID.equals(preferences.getFolderLayout(folder));
+    private boolean isGridViewPreferred(@Nullable OCFile folder) {
+        if (searchEvent != null) {
+            return (searchEvent.toSearchType() != SHARED_FILTER) &&
+                FOLDER_LAYOUT_GRID.equals(preferences.getFolderLayout(folder));
+        } else {
+            return FOLDER_LAYOUT_GRID.equals(preferences.getFolderLayout(folder));
+        }
+    }
+
+    private void setLayoutViewMode() {
+        boolean isGrid = isGridViewPreferred(mFile);
+
+        if (isGrid) {
+            switchToGridView();
+        } else {
+            switchToListView();
+        }
+
+        setLayoutSwitchButton(isGrid);
     }
 
     public void setListAsPreferred() {
@@ -1857,11 +1869,7 @@ protected void handleSearchEvent(SearchEvent event) {
 
         new Handler(Looper.getMainLooper()).post(() -> {
             updateSortButton();
-            if (isGridViewPreferred(mFile) && !isGridEnabled()) {
-                switchToGridView();
-            } else if (!isGridViewPreferred(mFile) && isGridEnabled()) {
-                switchToListView();
-            }
+            setLayoutViewMode();
         });
 
         final User currentUser = accountManager.getUser();