Fixes

Src/IAEngine/imp/cpp/UI.cpp

@@ -26,6 +26,9 @@
 
 #include <IACore/File.hpp>
 
+#include <IACore/Map.hpp>
+#include <map>
+
 namespace ia::iae
 {
     class RmlUIRenderInterface : public Rml::RenderInterface
@@ -316,19 +319,42 @@ namespace ia::iae
     class EventListener : public Rml::EventListener
     {
       public:
+        EventListener(IN Rml::ElementDocument *document) : m_document(document)
+        {
+        }
+
+        VOID AddClickListener(IN PCCHAR elementId, IN std::function<VOID()> callback)
+        {
+            m_document->GetElementById(elementId)->AddEventListener("click", this);
+            m_clickCallbacks[elementId] = callback;
+        }
+
         VOID ProcessEvent(IN Rml::Event &event)
         {
-            printf("Event recieved: %s\n", event.GetType().c_str());
+            switch (event.GetId())
+            {
+            case Rml::EventId::Click:
+                m_clickCallbacks[event.GetTargetElement()->GetId().c_str()]();
+                break;
+
+            default:
+                break;
+            }
         }
+
+      private:
+        Rml::ElementDocument *CONST m_document;
+        Map<String, std::function<VOID()>> m_clickCallbacks;
     };
 } // namespace ia::iae
 
 namespace ia::iae
 {
     Rml::Context *g_context{};
-    EventListener *g_eventListener;
     BOOL g_debuggerEnabled{false};
 
+    std::map<Handle, EventListener *> g_eventListeners;
+
     struct MainDataModel
     {
         Rml::String InputValues[10];
@@ -339,7 +365,6 @@ namespace ia::iae
         Rml::SetRenderInterface(&g_rmlUIRenderInterface);
         Rml::Initialise();
         g_context = Rml::CreateContext("main", Rml::Vector2i(width, height));
-        g_eventListener = new EventListener();
         Rml::Debugger::Initialise(g_context);
         DisableDebugger();
 
@@ -352,6 +377,9 @@ namespace ia::iae
 
     VOID UI::Terminate()
     {
+        for (auto &v : g_eventListeners)
+            delete v.second;
+
         Rml::Shutdown();
     }
 
@@ -420,7 +448,10 @@ namespace ia::iae
 
     Handle UI::AddWindowFromFile(IN CONST String &path)
     {
-        return (Handle) g_context->LoadDocument(path.c_str());
+        const auto w = g_context->LoadDocument(path.c_str());
+        const auto handle = (Handle) w;
+        g_eventListeners[handle] = new EventListener(w);
+        return handle;
     }
 
     VOID UI::ShowWindow(IN Handle handle)
@@ -435,8 +466,7 @@ namespace ia::iae
 
     VOID UI::AddClickEvent(IN Handle handle, IN PCCHAR elementId, IN std::function<VOID()> callback)
     {
-        const auto doc = reinterpret_cast<Rml::ElementDocument *>(handle);
-        doc->AddEventListener("click", g_eventListener);
+        g_eventListeners[handle]->AddClickListener(elementId, callback);
     }
 } // namespace ia::iae