requirements_info.h revision 0529e5d033099cbfc42635f6f6183833b09dff6e 
1// Copyright 2013 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef EXTENSIONS_COMMON_MANIFEST_HANDLERS_REQUIREMENTS_INFO_H_
6#define EXTENSIONS_COMMON_MANIFEST_HANDLERS_REQUIREMENTS_INFO_H_
7
8#include <string>
9
10#include "base/memory/scoped_ptr.h"
11#include "extensions/common/extension.h"
12#include "extensions/common/manifest.h"
13#include "extensions/common/manifest_handler.h"
14
15namespace extensions {
16
17// Declared requirements for the extension.
18struct RequirementsInfo : public Extension::ManifestData {
19  explicit RequirementsInfo(const Manifest* manifest);
20  virtual ~RequirementsInfo();
21
22  bool webgl;
23  bool npapi;
24  bool window_shape;
25
26  static const RequirementsInfo& GetRequirements(const Extension* extension);
27};
28
29// Parses the "requirements" manifest key.
30class RequirementsHandler : public ManifestHandler {
31 public:
32  RequirementsHandler();
33  virtual ~RequirementsHandler();
34
35  virtual bool Parse(Extension* extension, base::string16* error) OVERRIDE;
36
37  virtual bool AlwaysParseForType(Manifest::Type type) const OVERRIDE;
38
39  virtual const std::vector<std::string> PrerequisiteKeys() const OVERRIDE;
40
41 private:
42  virtual const std::vector<std::string> Keys() const OVERRIDE;
43
44  DISALLOW_COPY_AND_ASSIGN(RequirementsHandler);
45};
46
47}  // namespace extensions
48
49#endif  // EXTENSIONS_COMMON_MANIFEST_HANDLERS_REQUIREMENTS_INFO_H_
50