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-rw-r--r--webkit/glue/plugins/plugin_host.h63
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diff --git a/webkit/glue/plugins/plugin_host.h b/webkit/glue/plugins/plugin_host.h
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+// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// TODO: Need mechanism to cleanup the static instance
+
+#ifndef WEBKIT_GLUE_PLUGIN_PLUGIN_HOST_H__
+#define WEBKIT_GLUE_PLUGIN_PLUGIN_HOST_H__
+
+#include <string>
+#include <vector>
+
+#include "base/ref_counted.h"
+#include "third_party/npapi/bindings/npapi.h"
+#include "third_party/npapi/bindings/nphostapi.h"
+
+namespace NPAPI
+{
+class PluginInstance;
+
+// The Plugin Host implements the NPN_xxx functions for NPAPI plugins.
+// These are the functions exposed from the Plugin Host for use
+// by the Plugin.
+//
+// The PluginHost is managed as a singleton. This isn't strictly
+// necessary, but since the callback functions are all global C
+// functions, there is really no point in having per-instance PluginHosts.
+class PluginHost : public base::RefCounted<PluginHost> {
+ public:
+ // Access the single PluginHost instance. Callers
+ // must call deref() when finished with the object.
+ static PluginHost *Singleton();
+
+ // The table of functions provided to the plugin.
+ NPNetscapeFuncs *host_functions() { return &host_funcs_; }
+
+ // Helper function for parsing post headers, and applying attributes
+ // to the stream. NPAPI post data include headers + data combined.
+ // This function parses it out and adds it to the stream in a WebKit
+ // style.
+ static bool SetPostData(const char *buf,
+ uint32 length,
+ std::vector<std::string>* names,
+ std::vector<std::string>* values,
+ std::vector<char>* body);
+
+ void PatchNPNetscapeFuncs(NPNetscapeFuncs* overrides);
+
+ private:
+ friend class base::RefCounted<PluginHost>;
+
+ virtual ~PluginHost();
+
+ PluginHost();
+ void InitializeHostFuncs();
+ static scoped_refptr<PluginHost> singleton_;
+ NPNetscapeFuncs host_funcs_;
+ DISALLOW_COPY_AND_ASSIGN(PluginHost);
+};
+
+} // namespace NPAPI
+
+#endif // WEBKIT_GLUE_PLUGIN_PLUGIN_HOST_H__