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backends/events/emscriptensdl/emscriptensdl-events.h

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#if !defined(BACKEND_EVENTS_EMSCRIPTEN_H) && !defined(DISABLE_DEFAULT_EVENTMANAGER)
+#define BACKEND_EVENTS_EMSCRIPTEN_H
+
+#include "backends/events/sdl/sdl-events.h"
+#include "backends/platform/sdl/emscripten/emscripten.h"
+#include "common/events.h"
+
+/**
+ * SDL Events manager for Emscripten
+ */
+class EmscriptenSdlEventSource : public SdlEventSource {
+public:
+	/**
+	 * Gets and processes SDL events.
+	 */
+	bool pollEvent(Common::Event &event) override {
+	
+		bool ret_value = SdlEventSource::pollEvent(event);
+		if (event.type != Common::EVENT_QUIT && event.type != Common::EVENT_RETURN_TO_LAUNCHER) {	
+			// yield to the browser and process timers  
+			// (after polling the events to ensure synchronous event processing)
+			g_system->delayMillis(0);
+		}
+		return ret_value;
+	};
+};
+
+#endif /* BACKEND_EVENTS_EMSCRIPTEN_H */