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// Copyright (c) 2012 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_BROWSER_PLUGIN_FINDER_H_
#define CHROME_BROWSER_PLUGIN_FINDER_H_
#pragma once
#include <map>
#include <string>
#include "base/callback.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/singleton.h"
#include "base/string16.h"
namespace base {
class DictionaryValue;
class ListValue;
}
class GURL;
class PluginInstaller;
class PluginFinder {
public:
typedef base::Callback<void(PluginInstaller*)> FindPluginCallback;
static PluginFinder* GetInstance();
// Loads the plug-in information from the browser resources and parses it.
// Returns NULL if the plug-in list couldn't be parsed.
static scoped_ptr<base::ListValue> LoadPluginList();
// Finds a plug-in for the given MIME type and language (specified as an IETF
// language tag, i.e. en-US) and calls the callback with the PluginInstaller
// for the plug-in, or NULL if no plug-in is found.
void FindPlugin(const std::string& mime_type,
const std::string& language,
const FindPluginCallback& callback);
// Finds the plug-in with the given identifier and calls the callback.
void FindPluginWithIdentifier(const std::string& identifier,
const FindPluginCallback& callback);
private:
friend struct DefaultSingletonTraits<PluginFinder>;
PluginFinder();
~PluginFinder();
static base::ListValue* LoadPluginListInternal();
PluginInstaller* CreateInstaller(const std::string& identifier,
const base::DictionaryValue* plugin_dict);
PluginInstaller* FindPluginInternal(const std::string& mime_type,
const std::string& language);
scoped_ptr<base::ListValue> plugin_list_;
std::map<std::string, PluginInstaller*> installers_;
DISALLOW_COPY_AND_ASSIGN(PluginFinder);
};
#endif // CHROME_BROWSER_PLUGIN_FINDER_H_
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