1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
|
// 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_PLUGINS_PLUGIN_FINDER_H_
#define CHROME_BROWSER_PLUGINS_PLUGIN_FINDER_H_
#include <map>
#include <string>
#include "base/callback.h"
#include "base/gtest_prod_util.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/singleton.h"
#include "base/strings/string16.h"
#include "base/synchronization/lock.h"
#include "content/public/common/webplugininfo.h"
namespace base {
class DictionaryValue;
}
class GURL;
class PluginMetadata;
class PrefRegistrySimple;
#if defined(ENABLE_PLUGIN_INSTALLATION)
class PluginInstaller;
#endif
// This class should be created and initialized by calling
// |GetInstance()| and |Init()| on the UI thread.
// After that it can be safely used on any other thread.
class PluginFinder {
public:
static void RegisterPrefs(PrefRegistrySimple* registry);
static PluginFinder* GetInstance();
// It should be called on the UI thread.
void Init();
void ReinitializePlugins(const base::DictionaryValue* json_metadata);
#if defined(ENABLE_PLUGIN_INSTALLATION)
// Finds a plug-in for the given MIME type and language (specified as an IETF
// language tag, i.e. en-US). If found, sets |installer| to the
// corresponding PluginInstaller and |plugin_metadata| to a copy of the
// corresponding PluginMetadata.
bool FindPlugin(const std::string& mime_type,
const std::string& language,
PluginInstaller** installer,
scoped_ptr<PluginMetadata>* plugin_metadata);
// Finds the plug-in with the given identifier. If found, sets |installer|
// to the corresponding PluginInstaller and |plugin_metadata| to a copy
// of the corresponding PluginMetadata. |installer| may be NULL.
bool FindPluginWithIdentifier(const std::string& identifier,
PluginInstaller** installer,
scoped_ptr<PluginMetadata>* plugin_metadata);
#endif
// Returns the plug-in name with the given identifier.
base::string16 FindPluginNameWithIdentifier(const std::string& identifier);
// Gets plug-in metadata using |plugin|.
scoped_ptr<PluginMetadata> GetPluginMetadata(
const content::WebPluginInfo& plugin);
private:
friend struct DefaultSingletonTraits<PluginFinder>;
friend class Singleton<PluginFinder>;
FRIEND_TEST_ALL_PREFIXES(PluginFinderTest, JsonSyntax);
FRIEND_TEST_ALL_PREFIXES(PluginFinderTest, PluginGroups);
PluginFinder();
~PluginFinder();
// Loads the plug-in information from the browser resources and parses it.
// Returns NULL if the plug-in list couldn't be parsed.
static base::DictionaryValue* LoadBuiltInPluginList();
#if defined(ENABLE_PLUGIN_INSTALLATION)
std::map<std::string, PluginInstaller*> installers_;
#endif
std::map<std::string, PluginMetadata*> identifier_plugin_;
// Version of the metadata information. We use this to consolidate multiple
// sources (baked into resource and fetched from a URL), making sure that we
// don't overwrite newer versions with older ones.
int version_;
// Synchronization for the above member variables is
// required since multiple threads can be accessing them concurrently.
base::Lock mutex_;
DISALLOW_COPY_AND_ASSIGN(PluginFinder);
};
#endif // CHROME_BROWSER_PLUGINS_PLUGIN_FINDER_H_
|
