blob: af9f3630eefe59830f5e3e116b75dc63b36faafc (
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
|
// 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_EXTENSION_SETTING_CHANGES_H_
#define CHROME_BROWSER_EXTENSIONS_EXTENSION_SETTING_CHANGES_H_
#pragma once
#include "base/memory/ref_counted.h"
#include "base/values.h"
// A list of changes to extension settings. Create using the Builder class.
// The Changes object is thread-safe and efficient to copy, while the Builder
// object isn't.
class ExtensionSettingChanges {
public:
// Non-thread-safe builder for ExtensionSettingChanges.
class Builder {
public:
Builder() {}
// Appends a change for a setting.
void AppendChange(
const std::string& key,
// Ownership taken. May be NULL to imply there is no old value.
Value* old_value,
// Ownership taken. May be NULL to imply there is no new value.
Value* new_value);
// Creates an ExtensionSettingChanges object. The Builder should not be
// used after calling this.
ExtensionSettingChanges Build();
private:
ListValue changes_;
DISALLOW_COPY_AND_ASSIGN(Builder);
};
~ExtensionSettingChanges();
// Gets the JSON serialized form of the changes, for example:
// [ { "key": "foo", "oldValue": "bar", "newValue": "baz" } ]
std::string ToJson() const;
private:
// Create using the Builder class. |changes| will be cleared.
explicit ExtensionSettingChanges(ListValue* changes);
// Ref-counted inner class, a wrapper over a non-thread-safe string.
class Inner : public base::RefCountedThreadSafe<Inner> {
public:
Inner() {}
// swap() this with the changes from the Builder after construction.
ListValue changes_;
private:
virtual ~Inner() {}
friend class base::RefCountedThreadSafe<Inner>;
};
scoped_refptr<Inner> inner_;
};
#endif // CHROME_BROWSER_EXTENSIONS_EXTENSION_SETTING_CHANGES_H_
|
