Let the minimap be hidden by other applications in focus

src/dialogxml/dialogs/dialog.cpp

@@ -544,9 +544,11 @@ void cDialog::run(std::function<void(cDialog&)> onopen){
 	if(onopen) onopen(*this);
 	animTimer.restart();
 
+	has_focus = true;
 	handle_events();
 
 	win.setVisible(false);
+	// Flush events on parent window from while this one was running
 	while(pollEvent(parentWin, currentEvent));
 	set_cursor(former_curs);
 	topWindow = formerTop;
@@ -625,6 +627,9 @@ void cDialog::handleTab(bool reverse) {
 	}
 }
 
+extern sf::RenderWindow& mini_map();
+extern bool map_visible;
+
 // This method handles one event received by the dialog.
 void cDialog::handle_one_event(const sf::Event& currentEvent, cFramerateLimiter& fps_limiter) {
 	using Key = sf::Keyboard::Key;
@@ -737,10 +742,31 @@ void cDialog::handle_one_event(const sf::Event& currentEvent, cFramerateLimiter&
 			where = {(int)(currentEvent.mouseButton.x / get_ui_scale()), (int)(currentEvent.mouseButton.y / get_ui_scale())};
 			process_click(where, key.mod, fps_limiter);
 			break;
-		default: // To silence warning of unhandled enum values
+		case sf::Event::LostFocus:
+			has_focus = false;
+			setWindowFloating(mini_map(), false);
 			break;
 		case sf::Event::GainedFocus:
-		case sf::Event::MouseMoved:
+			if(!has_focus){
+				has_focus = true;
+				setWindowFloating(mini_map(), true);
+				makeFrontWindow(mainPtr());
+				if(map_visible)
+					makeFrontWindow(mini_map());
+				std::vector<sf::RenderWindow*> dialog_stack;
+				cDialog* next = this;
+				while(next != nullptr){
+					dialog_stack.push_back(&(next->win));
+					next = next->parent;
+				}
+				for(int i = dialog_stack.size() - 1; i >= 0; --i){
+					makeFrontWindow(*(dialog_stack[i]));
+				}
+				// that generates a LostFocus and a GainedFocus event
+				sf::Event evt;
+				while(pollEvent(win, evt));
+			}
+		case sf::Event::MouseMoved:{
 			// Did the window move, potentially dirtying the canvas below it?
 			if(check_window_moved(win, winLastX, winLastY))
 				if (redraw_everything != NULL)
@@ -755,6 +781,8 @@ void cDialog::handle_one_event(const sf::Event& currentEvent, cFramerateLimiter&
 				}
 			}
 			if(!inField) set_cursor(sword_curs);
+		}break;
+		default: // To silence warning of unhandled enum values
 			break;
 	}
 }

src/dialogxml/dialogs/dialog.hpp

@@ -77,6 +77,7 @@ class cDialog : public iComponent, public iNameGiver {
 	static bool initCalled;
 	int anim_pict_fps = 2;
 	bool doAnimations;
+	bool has_focus = false;
 public:
 	static void (*redraw_everything)();
 	/// Performs essential startup initialization. Generally should not be called directly.