--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Framework/Oracle/WebAssemblyOracle.h	Wed May 29 15:45:15 2019 +0200
@@ -0,0 +1,71 @@
+/**
+ * Stone of Orthanc
+ * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ * Copyright (C) 2017-2019 Osimis S.A., Belgium
+ *
+ * This program is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU Affero 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
+ * Affero General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+
+#pragma once
+
+#if !defined(ORTHANC_ENABLE_WASM)
+#  error The macro ORTHANC_ENABLE_WASM must be defined
+#endif
+
+#if ORTHANC_ENABLE_WASM != 1
+#  error This file can only compiled for WebAssembly
+#endif
+
+#include "../Messages/IObservable.h"
+#include "GetOrthancImageCommand.h"
+#include "GetOrthancWebViewerJpegCommand.h"
+#include "IOracle.h"
+#include "OrthancRestApiCommand.h"
+
+
+namespace OrthancStone
+{
+  class WebAssemblyOracle :
+    public IOracle,
+    public IObservable
+  {
+  private:
+    typedef std::map<std::string, std::string>  HttpHeaders;
+    
+    class TimeoutContext;
+    class Emitter;
+    class FetchContext;
+    class FetchCommand;    
+    
+    void Execute(const IObserver& receiver,
+                 OrthancRestApiCommand* command);    
+    
+    void Execute(const IObserver& receiver,
+                 GetOrthancImageCommand* command);    
+    
+    void Execute(const IObserver& receiver,
+                 GetOrthancWebViewerJpegCommand* command);
+
+  public:
+    WebAssemblyOracle(MessageBroker& broker) :
+      IObservable(broker)
+    {
+    }
+    
+    virtual void Schedule(const IObserver& receiver,
+                          IOracleCommand* command);
+  };
+}