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
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
|
// 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_EXTENSIONS_API_DECLARATIVE_CONTENT_CONTENT_ACTION_H_
#define CHROME_BROWSER_EXTENSIONS_API_DECLARATIVE_CONTENT_CONTENT_ACTION_H_
#include <memory>
#include <string>
#include "base/macros.h"
#include "extensions/browser/declarative_user_script_master.h"
#include "extensions/common/user_script.h"
namespace base {
class Value;
class DictionaryValue;
}
namespace content {
class BrowserContext;
class WebContents;
}
namespace extensions {
class Extension;
// Base class for all ContentActions of the Declarative Content API.
//
// For example, given the sample code at
// https://developer.chrome.com/extensions/declarativeContent#rules, the entity
// rule1['actions'][0] is represented by a ContentAction subclass.
class ContentAction {
public:
struct ApplyInfo {
const Extension* extension;
content::BrowserContext* browser_context;
content::WebContents* tab;
int priority;
};
virtual ~ContentAction();
// Applies or reverts this ContentAction on a particular tab for a particular
// extension. Revert exists to keep the actions up to date as the page
// changes. Reapply exists to reapply changes to a new page, even if the
// previous page also matched relevant conditions.
virtual void Apply(const ApplyInfo& apply_info) const = 0;
virtual void Reapply(const ApplyInfo& apply_info) const = 0;
virtual void Revert(const ApplyInfo& apply_info) const = 0;
// Factory method that instantiates a concrete ContentAction implementation
// according to |json_action|, the representation of the ContentAction as
// received from the extension API. Sets |error| and returns NULL in case of
// an error.
static std::unique_ptr<ContentAction> Create(
content::BrowserContext* browser_context,
const Extension* extension,
const base::Value& json_action,
std::string* error);
static void SetAllowInvisibleIconsForTest(bool value);
protected:
ContentAction();
};
// Action that injects a content script.
class RequestContentScript : public ContentAction {
public:
struct ScriptData;
RequestContentScript(content::BrowserContext* browser_context,
const Extension* extension,
const ScriptData& script_data);
RequestContentScript(DeclarativeUserScriptMaster* master,
const Extension* extension,
const ScriptData& script_data);
~RequestContentScript() override;
static std::unique_ptr<ContentAction> Create(
content::BrowserContext* browser_context,
const Extension* extension,
const base::DictionaryValue* dict,
std::string* error);
static std::unique_ptr<ContentAction> CreateForTest(
DeclarativeUserScriptMaster* master,
const Extension* extension,
const base::Value& json_action,
std::string* error);
static bool InitScriptData(const base::DictionaryValue* dict,
std::string* error,
ScriptData* script_data);
// Implementation of ContentAction:
void Apply(const ApplyInfo& apply_info) const override;
void Reapply(const ApplyInfo& apply_info) const override;
void Revert(const ApplyInfo& apply_info) const override;
private:
void InitScript(const HostID& host_id,
const Extension* extension,
const ScriptData& script_data);
void AddScript();
void InstructRenderProcessToInject(content::WebContents* contents,
const Extension* extension) const;
UserScript script_;
DeclarativeUserScriptMaster* master_;
DISALLOW_COPY_AND_ASSIGN(RequestContentScript);
};
} // namespace extensions
#endif // CHROME_BROWSER_EXTENSIONS_API_DECLARATIVE_CONTENT_CONTENT_ACTION_H_
|
