blob: 2856db90b572970368f15963e07e67d7effc3a50 (
plain)
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
|
// 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_BROWSER_EXTENSIONS_EXTERNAL_EXTENSION_PROVIDER_IMPL_H_
#define CHROME_BROWSER_EXTENSIONS_EXTERNAL_EXTENSION_PROVIDER_IMPL_H_
#pragma once
#include "chrome/browser/extensions/external_extension_provider_interface.h"
#include "base/ref_counted.h"
#include "chrome/browser/extensions/external_extension_loader.h"
class DictionaryValue;
class ExternalExtensionLoader;
class Profile;
class ValueSerializer;
class Version;
// A specialization of the ExternalExtensionProvider that uses an instance
// of ExternalExtensionLoader to provide external extensions. This class
// can be seen as a bridge between the extension system and an
// ExternalExtensionLoader. Instances live their entire life on the UI thread.
class ExternalExtensionProviderImpl
: public ExternalExtensionProviderInterface {
public:
// The constructed provider will provide the extensions loaded from |loader|
// to |service|, that will deal with the installation. The location
// attributes of the provided extensions are also specified here:
// |crx_location|: extensions originating from crx files
// |download_location|: extensions originating from update URLs
// If either of the origins is not supported by this provider, then it should
// be initialized as Extensions::INVALID.
ExternalExtensionProviderImpl(
VisitorInterface* service,
ExternalExtensionLoader* loader,
Extension::Location crx_location,
Extension::Location download_location);
virtual ~ExternalExtensionProviderImpl();
// Populates a list with providers for all known sources.
static void CreateExternalProviders(
VisitorInterface* service,
Profile* profile,
ProviderCollection* provider_list);
// Sets underlying prefs and notifies provider. Only to be called by the
// owned ExternalExtensionLoader instance.
void SetPrefs(DictionaryValue* prefs);
// ExternalExtensionProvider implementation:
virtual void VisitRegisteredExtension() const;
virtual bool HasExtension(const std::string& id) const;
virtual bool GetExtensionDetails(const std::string& id,
Extension::Location* location,
scoped_ptr<Version>* version) const;
virtual void ServiceShutdown();
virtual bool IsReady();
static const char kLocation[];
static const char kState[];
static const char kExternalCrx[];
static const char kExternalVersion[];
static const char kExternalUpdateUrl[];
private:
// Location for external extensions that are provided by this provider from
// local crx files.
const Extension::Location crx_location_;
// Location for external extensions that are provided by this provider from
// update URLs.
const Extension::Location download_location_;
private:
// Weak pointer to the object that consumes the external extensions.
// This is zeroed out by: ServiceShutdown()
VisitorInterface* service_; // weak
// Dictionary of the external extensions that are provided by this provider.
scoped_ptr<DictionaryValue> prefs_;
// Indicates that the extensions provided by this provider are loaded
// entirely.
bool ready_;
// The loader that loads the list of external extensions and reports them
// via |SetPrefs|.
scoped_refptr<ExternalExtensionLoader> loader_;
DISALLOW_COPY_AND_ASSIGN(ExternalExtensionProviderImpl);
};
#endif // CHROME_BROWSER_EXTENSIONS_EXTERNAL_EXTENSION_PROVIDER_IMPL_H_
|
