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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.
#ifndef CHROME_RENDERER_PLUGIN_UMA_H_
#define CHROME_RENDERER_PLUGIN_UMA_H_
#include <string>
#include "base/memory/scoped_ptr.h"
#include "base/memory/singleton.h"
#include "googleurl/src/gurl.h"
// Used to send UMA data about missing plugins to UMA histogram server. Method
// ReportPluginMissing should be called whenever plugin that is not available or
// enabled is called. We try to determine plugin's type by requested mime type,
// or, if mime type is unknown, by plugin's src url.
class MissingPluginReporter {
public:
// This must be sync'd with histogram values.
enum PluginType {
WINDOWS_MEDIA_PLAYER = 0,
SILVERLIGHT = 1,
REALPLAYER = 2,
JAVA = 3,
QUICKTIME = 4,
OTHER = 5
};
// Sends UMA data, i.e. plugin's type.
class UMASender {
public:
virtual ~UMASender() {}
virtual void SendPluginUMA(PluginType plugin_type) = 0;
};
// Returns singleton instance.
static MissingPluginReporter* GetInstance();
void ReportPluginMissing(std::string plugin_mime_type,
const GURL& plugin_src);
// Used in testing.
void SetUMASender(UMASender* sender);
private:
friend struct DefaultSingletonTraits<MissingPluginReporter>;
MissingPluginReporter();
~MissingPluginReporter();
static bool CompareCStrings(const char* first, const char* second);
bool CStringArrayContainsCString(const char** array,
size_t array_size,
const char* str);
// Extracts file extension from url.
void ExtractFileExtension(const GURL& src, std::string* extension);
// Converts plugin's src to plugin type.
PluginType SrcToPluginType(const GURL& src);
// Converts plugin's mime type to plugin type.
PluginType MimeTypeToPluginType(const std::string& mime_type);
scoped_ptr<UMASender> report_sender_;
DISALLOW_COPY_AND_ASSIGN(MissingPluginReporter);
};
#endif // CHROME_RENDERER_PLUGIN_UMA_H_
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