GUI: Tweaked the launcher so that TAB switches focus between the list and the quick search field

svn-id: r41311

gui/dialog.cpp

@@ -92,10 +92,7 @@ void Dialog::open() {
 		w = w->_next;
 	}
 
-	if (w) {
+	setFocusWidget(w);
-		w->receivedFocus();
-		_focusedWidget = w;
-	}
 }
 
 void Dialog::close() {
@@ -123,6 +120,18 @@ void Dialog::reflowLayout() {
 	GuiObject::reflowLayout();
 }
 
+void Dialog::setFocusWidget(Widget *widget) {
+	// The focus will change. Tell the old focused widget (if any)
+	// that it lost the focus.
+	releaseFocus();
+
+	// Tell the new focused widget (if any) that it just gained the focus.
+	if (widget)
+		widget->receivedFocus();
+
+	_focusedWidget = widget;
+}
+
 void Dialog::releaseFocus() {
 	if (_focusedWidget) {
 		_focusedWidget->lostFocus();
@@ -165,15 +174,7 @@ void Dialog::handleMouseDown(int x, int y, int button, int clickCount) {
 	// If the click occured inside a widget which is not the currently
 	// focused one, change the focus to that widget.
 	if (w && w != _focusedWidget && w->wantsFocus()) {
-		// The focus will change. Tell the old focused widget (if any)
+		setFocusWidget(w);
-		// that it lost the focus.
-		releaseFocus();
-
-		// Tell the new focused widget (if any) that it just gained the focus.
-		if (w)
-			w->receivedFocus();
-
-		_focusedWidget = w;
 	}
 
 	if (w)

gui/dialog.h

@@ -63,6 +63,8 @@ public:
 	bool	isVisible() const	{ return _visible; }
 
 	void	releaseFocus();
+	void	setFocusWidget(Widget *widget);
+	Widget *getFocusWidget() { return _focusedWidget; }
 
 	virtual void reflowLayout();
 

gui/launcher.cpp

@@ -871,6 +871,14 @@ void LauncherDialog::loadGame(int item) {
 }
 
 void LauncherDialog::handleKeyDown(Common::KeyState state) {
+	if (state.keycode == Common::KEYCODE_TAB) {
+		// Toggle between the game list and the quick search field.
+		if (getFocusWidget() == _searchWidget) {
+			setFocusWidget(_list);
+		} else if (getFocusWidget() == _list) {
+			setFocusWidget(_searchWidget);
+		}
+	}
 	Dialog::handleKeyDown(state);
 	updateButtons();
 }