- add sources.
[platform/framework/web/crosswalk.git] / src / chrome / browser / extensions / api / declarative_content / content_action.h
1 // Copyright (c) 2012 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 CHROME_BROWSER_EXTENSIONS_API_DECLARATIVE_CONTENT_CONTENT_ACTION_H_
6 #define CHROME_BROWSER_EXTENSIONS_API_DECLARATIVE_CONTENT_CONTENT_ACTION_H_
7
8 #include <string>
9 #include <vector>
10
11 #include "base/memory/ref_counted.h"
12 #include "chrome/browser/extensions/api/declarative/declarative_rule.h"
13
14 class Profile;
15
16 namespace base {
17 class Time;
18 class Value;
19 }
20
21 namespace content {
22 class WebContents;
23 }
24
25 namespace extensions {
26 class Extension;
27
28 // Base class for all ContentActions of the declarative content API.
29 class ContentAction : public base::RefCounted<ContentAction> {
30  public:
31   // Type identifiers for concrete ContentActions.
32   enum Type {
33     ACTION_SHOW_PAGE_ACTION,
34   };
35
36   struct ApplyInfo {
37     Profile* profile;
38     content::WebContents* tab;
39   };
40
41   ContentAction();
42
43   virtual Type GetType() const = 0;
44
45   // Applies or reverts this ContentAction on a particular tab for a particular
46   // extension.  Revert exists to keep the actions up to date as the page
47   // changes.
48   virtual void Apply(const std::string& extension_id,
49                      const base::Time& extension_install_time,
50                      ApplyInfo* apply_info) const = 0;
51   virtual void Revert(const std::string& extension_id,
52                       const base::Time& extension_install_time,
53                       ApplyInfo* apply_info) const = 0;
54
55   // Factory method that instantiates a concrete ContentAction
56   // implementation according to |json_action|, the representation of the
57   // ContentAction as received from the extension API.
58   // Sets |error| and returns NULL in case of a semantic error that cannot
59   // be caught by schema validation. Sets |bad_message| and returns NULL
60   // in case the input is syntactically unexpected.
61   static scoped_refptr<ContentAction> Create(const Extension* extension,
62                                              const base::Value& json_action,
63                                              std::string* error,
64                                              bool* bad_message);
65
66  protected:
67   friend class base::RefCounted<ContentAction>;
68   virtual ~ContentAction();
69 };
70
71 typedef DeclarativeActionSet<ContentAction> ContentActionSet;
72
73 }  // namespace extensions
74
75 #endif  // CHROME_BROWSER_EXTENSIONS_API_DECLARATIVE_CONTENT_CONTENT_ACTION_H_