UI: Focus to game searchbar on load

Make return key press focus to game list's first entry.

rpcs3/rpcs3qt/game_list.cpp

@@ -45,3 +45,13 @@ void game_list::leaveEvent(QEvent */*event*/)
 		m_last_hover_item = nullptr;
 	}
 }
+
+void game_list::FocusAndSelectFirstEntryIfNoneIs()
+{
+	if (QTableWidgetItem* item = itemAt(0, 0); item && selectedIndexes().isEmpty())
+	{
+		setCurrentItem(item);
+	}
+
+	setFocus();
+}

rpcs3/rpcs3qt/game_list.h

@@ -35,6 +35,9 @@ class game_list : public QTableWidget
 public:
 	void clear_list(); // Use this instead of clearContents
 
+public Q_SLOTS:
+	void FocusAndSelectFirstEntryIfNoneIs();
+
 protected:
 	movie_item* m_last_hover_item = nullptr;
 

rpcs3/rpcs3qt/game_list_frame.cpp

@@ -2422,6 +2422,28 @@ void game_list_frame::SetSearchText(const QString& text)
 	Refresh();
 }
 
+void game_list_frame::FocusAndSelectFirstEntryIfNoneIs()
+{
+	if (m_is_list_layout)
+	{
+		if (!m_game_list)
+		{
+			return;
+		}
+
+		m_game_list->FocusAndSelectFirstEntryIfNoneIs();
+	}
+	else
+	{
+		if (!m_game_grid)
+		{
+			return;
+		}
+
+		m_game_grid->FocusAndSelectFirstEntryIfNoneIs();
+	}
+}
+
 void game_list_frame::closeEvent(QCloseEvent *event)
 {
 	QDockWidget::closeEvent(event);

rpcs3/rpcs3qt/game_list_frame.h

@@ -77,6 +77,7 @@ public Q_SLOTS:
 	void SetShowCompatibilityInGrid(bool show);
 	void SetShowCustomIcons(bool show);
 	void SetPlayHoverGifs(bool play);
+	void FocusAndSelectFirstEntryIfNoneIs();
 
 private Q_SLOTS:
 	void OnRefreshFinished();

rpcs3/rpcs3qt/main_window.cpp

@@ -276,6 +276,9 @@ bool main_window::Init([[maybe_unused]] bool with_cli_boot)
 	// Disable vsh if not present.
 	ui->bootVSHAct->setEnabled(fs::is_file(g_cfg_vfs.get_dev_flash() + "vsh/module/vsh.self"));
 
+	// Focus to search bar by default
+	ui->mw_searchbar->setFocus();
+
 	return true;
 }
 
@@ -2784,6 +2787,7 @@ void main_window::CreateConnects()
 	});
 
 	connect(ui->mw_searchbar, &QLineEdit::textChanged, m_game_list_frame, &game_list_frame::SetSearchText);
+	connect(ui->mw_searchbar, &QLineEdit::returnPressed, m_game_list_frame, &game_list_frame::FocusAndSelectFirstEntryIfNoneIs);
 }
 
 void main_window::CreateDockWindows()