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// Copyright (c) 2011 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 CONTENT_CHILD_NPAPI_PLUGIN_HOST_H_
#define CONTENT_CHILD_NPAPI_PLUGIN_HOST_H_
#include <string>
#include <vector>
#include "base/memory/ref_counted.h"
#include "third_party/npapi/bindings/npapi.h"
#include "third_party/npapi/bindings/nphostapi.h"
namespace content {
// 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();
NPNetscapeFuncs host_funcs_;
DISALLOW_COPY_AND_ASSIGN(PluginHost);
};
} // namespace content
#endif // CONTENT_CHILD_NPAPI_PLUGIN_HOST_H_
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