feat: key pressed event interception & 'owner' input.add_callback third argument

src/graphics/ui/elements/Container.hpp

@@ -2,11 +2,12 @@
 
 #include "UINode.hpp"
 #include "commons.hpp"
+#include "util/ObjectsKeeper.hpp"
 
 #include <vector>
 
 namespace gui {
-    class Container : public UINode {
+    class Container : public UINode, public util::ObjectsKeeper {
         int prevScrollY = -1;
     protected:
         std::vector<std::shared_ptr<UINode>> nodes;

src/graphics/ui/elements/Menu.cpp

@@ -13,11 +13,15 @@ bool Menu::has(const std::string& name) {
            pageSuppliers.find(name) != pageSuppliers.end();
 }
 
-void Menu::addPage(const std::string& name, const std::shared_ptr<UINode> &panel) {
-    pages[name] = Page{name, panel};
+void Menu::addPage(const std::string& name, const std::shared_ptr<UINode>& panel) {
+    pages[name] = Page {name, panel};
 }
 
-void Menu::addSupplier(const std::string &name, const supplier<std::shared_ptr<UINode>> &pageSupplier) {
+void Menu::removePage(const std::string& name) {
+    pages.erase(name);
+}
+
+void Menu::addSupplier(const std::string& name, const supplier<std::shared_ptr<UINode>>& pageSupplier) {
     pageSuppliers[name] = pageSupplier;
 }
 
@@ -89,6 +93,6 @@ void Menu::reset() {
     clearHistory();
     if (current.panel) {
         Container::remove(current.panel);
-        current = Page{"", nullptr};
+        current = Page {"", nullptr};
     }
 }

src/graphics/ui/elements/Menu.hpp

@@ -32,6 +32,7 @@ namespace gui {
         void setPage(const std::string &name, bool history=true);
         void setPage(Page page, bool history=true);
         void addPage(const std::string& name, const std::shared_ptr<UINode>& panel);
+        void removePage(const std::string& name);
         std::shared_ptr<UINode> fetchPage(const std::string& name);
 
         /// @brief Add page supplier used if page is not found

src/graphics/ui/gui_util.cpp

@@ -11,6 +11,9 @@
 #include "util/stringutil.hpp"
 #include "delegates.hpp"
 
+#include "window/Events.hpp"
+#include "engine/Engine.hpp"
+
 #include <glm/glm.hpp>
 
 using namespace gui;
@@ -50,7 +53,7 @@ void guiutil::alert(
 }
 
 void guiutil::confirm(
-    const std::shared_ptr<gui::Menu>& menu,
+    Engine& engine,
     const std::wstring& text,
     const runnable& on_confirm,
     const runnable& on_deny,
@@ -66,19 +69,45 @@ void guiutil::confirm(
     auto subpanel = std::make_shared<Panel>(glm::vec2(600, 53));
     subpanel->setColor(glm::vec4(0));
 
-    subpanel->add(std::make_shared<Button>(yestext, glm::vec4(8.f), [=](GUI*){
-        if (on_confirm)
+    auto menu = engine.getGUI()->getMenu();
+
+    runnable on_confirm_final = [on_confirm, menu, &engine]() {
+        if (on_confirm) {
             on_confirm();
+        }
         menu->back();
+        engine.postRunnable([menu]() {
+            menu->removePage("<confirm>");
+        });
+    };
+
+    runnable on_deny_final = [on_deny, menu, &engine]() {
+        if (on_deny) {
+            on_deny();
+        }
+        menu->back();
+        engine.postRunnable([menu]() {
+            menu->removePage("<confirm>");
+        });
+    };
+
+    subpanel->add(std::make_shared<Button>(yestext, glm::vec4(8.f), [=](GUI*){
+        on_confirm_final();
     }));
 
     subpanel->add(std::make_shared<Button>(notext, glm::vec4(8.f), [=](GUI*){
-        if (on_deny)
-            on_deny();
-        menu->back();
+        on_deny_final();
     }));
 
     panel->add(subpanel);
+    panel->keepAlive(Events::keyCallbacks[keycode::ENTER].add([=](){
+        on_confirm_final();
+        return true;
+    }));
+    panel->keepAlive(Events::keyCallbacks[keycode::ESCAPE].add([=](){
+        on_deny_final();
+        return true;
+    }));
 
     panel->refresh();
     menu->addPage("<confirm>", panel);

src/graphics/ui/gui_util.hpp

@@ -7,6 +7,8 @@
 #include <memory>
 #include <string>
 
+class Engine;
+
 namespace guiutil {
     /// @brief Create element from XML
     /// @param source XML
@@ -19,7 +21,7 @@ namespace guiutil {
     );
 
     void confirm(
-        const std::shared_ptr<gui::Menu>& menu,
+        Engine& engine,
         const std::wstring& text, 
         const runnable& on_confirm=nullptr,
         const runnable& on_deny=nullptr,