fix(card-browser): hide 'preview' if no notes

Author: david-allison

AnkiDroid/src/main/java/com/ichi2/anki/browser/CardBrowserFragment.kt

@@ -490,6 +490,9 @@ class CardBrowserFragment :
                     menu.findItem(R.id.action_select_all)?.isVisible =
                         vm.rowCount > 0 && vm.selectedRowCount() < vm.rowCount
 
+                    menu.findItem(R.id.action_preview_many)?.isVisible =
+                        vm.rowCount > 0
+
                     menu.findItem(R.id.action_undo).setupUndo()
                 }
 

AnkiDroid/src/test/java/com/ichi2/anki/CardBrowserTest.kt

@@ -1724,6 +1724,38 @@ class CardBrowserTest : RobolectricTest() {
             assertMenusEqual(expectedMenuItems, menu)
         }
 
+    @Test
+    fun `options menu - new ui - no notes`() =
+        withOptionsMenu(
+            OptionsMenuType(
+                fragmented = false,
+                mutliselect = false,
+                newUi = true,
+            ),
+            noteCount = 0,
+        ) {
+            val expectedMenuItems =
+                listOf(
+                    R.id.action_add_note_from_card_browser to true,
+                    R.id.action_search to false,
+                    R.id.action_save_search to false,
+                    R.id.action_list_my_searches to false,
+                    R.id.action_sort_by_size to false,
+                    R.id.action_show_marked to false,
+                    R.id.action_show_suspended to false,
+                    R.id.action_search_by_tag to false,
+                    R.id.action_search_by_flag to false,
+                    R.id.action_undo to false,
+                    R.id.action_preview_many to false,
+                    R.id.action_select_all to false,
+                    R.id.action_open_options to true,
+                    R.id.action_create_filtered_deck to true,
+                    R.id.action_find_replace to false,
+                )
+
+            assertMenusEqual(expectedMenuItems, menu)
+        }
+
     @Test
     fun `options menu - new ui - add is first if no results`() =
         withOptionsMenu(