Debugger: Organize WebSocket event handling.

Just a starting point to organize it.  Trying to keep it simple.

Core/Debugger/WebSocket/GameBroadcaster.cpp

@@ -0,0 +1,38 @@
+// Copyright (c) 2018- PPSSPP Project.
+
+// 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, version 2.0 or later versions.
+
+// 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 2.0 for more details.
+
+// A copy of the GPL 2.0 should have been included with the program.
+// If not, see http://www.gnu.org/licenses/
+
+// Official git repository and contact information can be found at
+// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
+
+#include "Core/Debugger/WebSocket/Common.h"
+#include "Core/Debugger/WebSocket/GameBroadcaster.h"
+#include "Core/System.h"
+
+void GameBroadcaster::Broadcast(net::WebSocketServer *ws) {
+	// TODO: This is ugly.  Implement proper information instead.
+	// TODO: Should probably include info about which game, etc.
+	GlobalUIState state = GetUIState();
+	if (prevState_ != state) {
+		if (state == UISTATE_PAUSEMENU) {
+			ws->Send(R"({"event":"game_pause"})");
+		} else if (state == UISTATE_INGAME && prevState_ == UISTATE_PAUSEMENU) {
+			ws->Send(R"({"event":"game_resume"})");
+		} else if (state == UISTATE_INGAME) {
+			ws->Send(R"({"event":"game_start"})");
+		} else if (state == UISTATE_MENU) {
+			ws->Send(R"({"event":"game_quit"})");
+		}
+		prevState_ = state;
+	}
+}