zonechange events, menu previous command

1 files changed, 26 insertions, 3 deletions

diff --git a/src/ui/ui.cc b/src/ui/ui.cc
index bba9ea6..8242381 100644
--- a/src/ui/ui.cc
+++ b/src/ui/ui.cc
@@ -89,9 +89,11 @@ void help_menu()
 	con_print << "^Bmenu functions" << std::endl;
 	con_print << "  menu help          show this help" << std::endl;
 	con_print << "  menu list          list available menus" << std::endl;
-	con_print << "  menu hide          hide the current menu" << std::endl;
-	con_print << "  menu close         close the current menu" << std::endl;
 	con_print << "  menu [name]        show a menu" << std::endl;
+	con_print << "  menu back          return to the previous menu" << std::endl;
+	con_print << "  menu previous      return to the previous menu" << std::endl;
+	con_print << "  menu close         close the current menu" << std::endl;
+	con_print << "  menu hide          hide the current menu" << std::endl;
 	root()->list_menus();
 }
 
@@ -117,6 +119,12 @@ void func_menu(std::string const &args)
 	} else if (command.compare("close") == 0) {
 		root()->hide_window();
 
+	} else if (command.compare("back") == 0) {
+		root()->previous_window();
+
+	} else if (command.compare("previous") == 0) {
+		root()->previous_window();
+
 	} else if (command.compare("list") == 0) {
 		root()->list_menus();
 	} else {
@@ -345,8 +353,12 @@ void UI::show_window(const char *label)
 	Window *window = find_window(label);
 
 	if (window) {
-			if (ui_active_window)
+			if (ui_active_window) {
 				ui_active_window->hide();
+				window->set_previous(ui_active_window);
+			} else {
+				window->clear_previous();
+			}
 			ui_active_window = window;
 			ui_active_window->event_resize();
 			ui_active_window->raise();
@@ -365,6 +377,17 @@ void UI::hide_window()
 	}
 }
 
+void UI::previous_window()
+{
+	if (ui_active_window) {
+		if (ui_active_window->previous().size()) {
+			show_window(ui_active_window->previous().c_str());
+		} else {
+			hide_window();
+		}
+	}
+}
+
 void UI::frame()
 {
 	ui_focus = event_focus(mouse_cursor);