Fixed search not accepting key input after closing player overlay (#7607)

* Fixed search not accepting key input after closing player overlay

* Made comments easier to understand

* More comments

Author: litetex

app/src/main/java/org/schabi/newpipe/fragments/detail/VideoDetailFragment.java

@@ -2208,12 +2208,20 @@ private void moveFocusToMainFragment(final boolean toMain) {
             mainFragment.setDescendantFocusability(afterDescendants);
             toolbar.setDescendantFocusability(afterDescendants);
             ((ViewGroup) requireView()).setDescendantFocusability(blockDescendants);
-            mainFragment.requestFocus();
+            // Only focus the mainFragment if the mainFragment (e.g. search-results)
+            // or the toolbar (e.g. Textfield for search) don't have focus.
+            // This was done to fix problems with the keyboard input, see also #7490
+            if (!mainFragment.hasFocus() && !toolbar.hasFocus()) {
+                mainFragment.requestFocus();
+            }
         } else {
             mainFragment.setDescendantFocusability(blockDescendants);
             toolbar.setDescendantFocusability(blockDescendants);
             ((ViewGroup) requireView()).setDescendantFocusability(afterDescendants);
-            binding.detailThumbnailRootLayout.requestFocus();
+            // Only focus the player if it not already has focus
+            if (!binding.getRoot().hasFocus()) {
+                binding.detailThumbnailRootLayout.requestFocus();
+            }
         }
     }