[studio,turbine] Add support for mouse back/forward buttons

src/olympic/studio/applib/src/app.cpp

@@ -28,10 +28,15 @@ class StudioUIDrawer: public turbine::gl::Drawer {
 };
 
 static void keyEventHandler(turbine::Context &ctx, turbine::Key key, bool down) noexcept {
-	auto sctx = turbine::applicationData<studio::Context>(ctx);
+	auto const sctx = turbine::applicationData<studio::Context>(ctx);
 	sctx->ui.handleKeyEvent(key, down);
 }
 
+static void mouseButtonEventHandler(turbine::Context &ctx, int const btn, bool const down) noexcept {
+	auto const sctx = turbine::applicationData<studio::Context>(ctx);
+	sctx->ui.handleMouseButtonEvent(btn, down);
+}
+
 [[nodiscard]]
 ox::Vector<ox::SpanView<uint8_t>> WindowIcons() noexcept;
 
@@ -43,6 +48,7 @@ static ox::Error runApp(
 	oxLogError(turbine::setWindowIcon(*ctx, WindowIcons()));
 	turbine::setWindowTitle(*ctx, keelCtx(*ctx).appName);
 	turbine::setKeyEventHandler(*ctx, keyEventHandler);
+	turbine::setMouseButtonEventHandler(*ctx, mouseButtonEventHandler);
 	turbine::requireRefreshWithin(*ctx, 0);
 	StudioUI ui(*ctx, projectDataDir);
 	StudioUIDrawer drawer(ui);

src/olympic/studio/applib/src/studioui.cpp

@@ -177,6 +177,16 @@ void StudioUI::handleKeyEvent(turbine::Key const key, bool const down) noexcept
 	}
 }
 
+void StudioUI::handleMouseButtonEvent(int const btn, bool const down) noexcept {
+	if (down) {
+		if (btn == 3) { // back button
+			navigateBack(m_sctx);
+		} else if (btn == 4) { // forward button
+			navigateForward(m_sctx);
+		}
+	}
+}
+
 void StudioUI::handleNavigationChange(ox::StringParam path, ox::StringParam navArgs) noexcept {
 	m_navAction.emplace(std::move(path), std::move(navArgs));
 }

src/olympic/studio/applib/src/studioui.hpp

@@ -87,6 +87,8 @@ class StudioUI final: public ox::SignalHandler {
 
 		void handleKeyEvent(turbine::Key, bool down) noexcept;
 
+		void handleMouseButtonEvent(int btn, bool down) noexcept;
+
 		void handleNavigationChange(ox::StringParam path, ox::StringParam navArgs) noexcept;
 
 		[[nodiscard]]