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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef CONTENT_PUBLIC_BROWSER_RESOURCE_THROTTLE_H_ | 5 #ifndef CONTENT_PUBLIC_BROWSER_RESOURCE_THROTTLE_H_ |
6 #define CONTENT_PUBLIC_BROWSER_RESOURCE_THROTTLE_H_ | 6 #define CONTENT_PUBLIC_BROWSER_RESOURCE_THROTTLE_H_ |
7 | 7 |
8 #include <vector> | 8 #include <vector> |
9 | 9 |
10 class GURL; | 10 class GURL; |
11 | 11 |
12 namespace content { | 12 namespace content { |
13 | 13 |
14 class ResourceController; | 14 class ResourceController; |
15 | 15 |
16 // A ResourceThrottle gets notified at various points during the process of | 16 // A ResourceThrottle gets notified at various points during the process of |
17 // loading a resource. At each stage, it has the opportunity to defer the | 17 // loading a resource. At each stage, it has the opportunity to defer the |
18 // resource load. The ResourceController interface may be used to resume a | 18 // resource load. The ResourceController interface may be used to resume a |
19 // deferred resource load, or it may be used to cancel a resource load at any | 19 // deferred resource load, or it may be used to cancel a resource load at any |
20 // time. | 20 // time. |
21 class ResourceThrottle { | 21 class ResourceThrottle { |
22 public: | 22 public: |
23 virtual ~ResourceThrottle() {} | 23 virtual ~ResourceThrottle() {} |
24 | 24 |
25 virtual void WillStartRequest(bool* defer) {} | 25 virtual void WillStartRequest(bool* defer) {} |
| 26 virtual void WillStartUsingNetwork(bool* defer) {} |
26 virtual void WillRedirectRequest(const GURL& new_url, bool* defer) {} | 27 virtual void WillRedirectRequest(const GURL& new_url, bool* defer) {} |
27 virtual void WillProcessResponse(bool* defer) {} | 28 virtual void WillProcessResponse(bool* defer) {} |
28 virtual void OnBeforeNetworkStart(bool* defer) {} | |
29 | 29 |
30 // Returns the name of the throttle, as a UTF-8 C-string, for logging | 30 // Returns the name of the throttle, as a UTF-8 C-string, for logging |
31 // purposes. NULL is not allowed. Caller does *not* take ownership of the | 31 // purposes. NULL is not allowed. Caller does *not* take ownership of the |
32 // returned string. | 32 // returned string. |
33 virtual const char* GetNameForLogging() const = 0; | 33 virtual const char* GetNameForLogging() const = 0; |
34 | 34 |
35 void set_controller_for_testing(ResourceController* c) { | 35 void set_controller_for_testing(ResourceController* c) { |
36 controller_ = c; | 36 controller_ = c; |
37 } | 37 } |
38 | 38 |
39 protected: | 39 protected: |
40 ResourceThrottle() : controller_(NULL) {} | 40 ResourceThrottle() : controller_(NULL) {} |
41 ResourceController* controller() { return controller_; } | 41 ResourceController* controller() { return controller_; } |
42 | 42 |
43 private: | 43 private: |
44 friend class ThrottlingResourceHandler; | 44 friend class ThrottlingResourceHandler; |
45 void set_controller(ResourceController* c) { controller_ = c; } | 45 void set_controller(ResourceController* c) { controller_ = c; } |
46 | 46 |
47 ResourceController* controller_; | 47 ResourceController* controller_; |
48 }; | 48 }; |
49 | 49 |
50 } // namespace content | 50 } // namespace content |
51 | 51 |
52 #endif // CONTENT_PUBLIC_BROWSER_RESOURCE_THROTTLE_H_ | 52 #endif // CONTENT_PUBLIC_BROWSER_RESOURCE_THROTTLE_H_ |
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