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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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 WEBKIT_BROWSER_QUOTA_STORAGE_OBSERVER_H_ | 5 #ifndef WEBKIT_BROWSER_QUOTA_STORAGE_OBSERVER_H_ |
| 6 #define WEBKIT_BROWSER_QUOTA_STORAGE_OBSERVER_H_ | 6 #define WEBKIT_BROWSER_QUOTA_STORAGE_OBSERVER_H_ |
| 7 | 7 |
| 8 #include "base/basictypes.h" | 8 #include "base/basictypes.h" |
| 9 #include "base/time/time.h" | 9 #include "base/time/time.h" |
| 10 #include "url/gurl.h" | 10 #include "url/gurl.h" |
| 11 #include "webkit/browser/quota/quota_client.h" | 11 #include "storage/browser/quota/quota_client.h" |
| 12 #include "webkit/common/quota/quota_types.h" | 12 #include "storage/common/quota/quota_types.h" |
| 13 | 13 |
| 14 namespace quota { | 14 namespace quota { |
| 15 | 15 |
| 16 // This interface is implemented by observers that wish to monitor storage | 16 // This interface is implemented by observers that wish to monitor storage |
| 17 // events, such as changes in quota or usage. | 17 // events, such as changes in quota or usage. |
| 18 class WEBKIT_STORAGE_BROWSER_EXPORT StorageObserver { | 18 class STORAGE_EXPORT StorageObserver { |
| 19 public: | 19 public: |
| 20 struct WEBKIT_STORAGE_BROWSER_EXPORT Filter { | 20 struct STORAGE_EXPORT Filter { |
| 21 // The storage type to monitor. This must not be kStorageTypeUnknown or | 21 // The storage type to monitor. This must not be kStorageTypeUnknown or |
| 22 // kStorageTypeQuotaNotManaged. | 22 // kStorageTypeQuotaNotManaged. |
| 23 StorageType storage_type; | 23 StorageType storage_type; |
| 24 | 24 |
| 25 // The origin to monitor usage for. Must be specified. | 25 // The origin to monitor usage for. Must be specified. |
| 26 GURL origin; | 26 GURL origin; |
| 27 | 27 |
| 28 Filter(); | 28 Filter(); |
| 29 Filter(StorageType storage_type, const GURL& origin); | 29 Filter(StorageType storage_type, const GURL& origin); |
| 30 bool operator==(const Filter& other) const; | 30 bool operator==(const Filter& other) const; |
| 31 }; | 31 }; |
| 32 | 32 |
| 33 struct WEBKIT_STORAGE_BROWSER_EXPORT MonitorParams { | 33 struct STORAGE_EXPORT MonitorParams { |
| 34 // Storage type and origin to monitor. | 34 // Storage type and origin to monitor. |
| 35 Filter filter; | 35 Filter filter; |
| 36 | 36 |
| 37 // The rate at which storage events will be fired. Events will be fired at | 37 // The rate at which storage events will be fired. Events will be fired at |
| 38 // approximately this rate, or when a storage status change has been | 38 // approximately this rate, or when a storage status change has been |
| 39 // detected, whichever is the least frequent. | 39 // detected, whichever is the least frequent. |
| 40 base::TimeDelta rate; | 40 base::TimeDelta rate; |
| 41 | 41 |
| 42 // If set to true, the observer will be dispatched an event when added. | 42 // If set to true, the observer will be dispatched an event when added. |
| 43 bool dispatch_initial_state; | 43 bool dispatch_initial_state; |
| 44 | 44 |
| 45 MonitorParams(); | 45 MonitorParams(); |
| 46 MonitorParams(StorageType storage_type, | 46 MonitorParams(StorageType storage_type, |
| 47 const GURL& origin, | 47 const GURL& origin, |
| 48 const base::TimeDelta& rate, | 48 const base::TimeDelta& rate, |
| 49 bool get_initial_state); | 49 bool get_initial_state); |
| 50 MonitorParams(const Filter& filter, | 50 MonitorParams(const Filter& filter, |
| 51 const base::TimeDelta& rate, | 51 const base::TimeDelta& rate, |
| 52 bool get_initial_state); | 52 bool get_initial_state); |
| 53 }; | 53 }; |
| 54 | 54 |
| 55 struct WEBKIT_STORAGE_BROWSER_EXPORT Event { | 55 struct STORAGE_EXPORT Event { |
| 56 // The storage type and origin monitored. | 56 // The storage type and origin monitored. |
| 57 Filter filter; | 57 Filter filter; |
| 58 | 58 |
| 59 // The current usage corresponding to the filter. | 59 // The current usage corresponding to the filter. |
| 60 int64 usage; | 60 int64 usage; |
| 61 | 61 |
| 62 // The quota corresponding to the filter. | 62 // The quota corresponding to the filter. |
| 63 int64 quota; | 63 int64 quota; |
| 64 | 64 |
| 65 Event(); | 65 Event(); |
| 66 Event(const Filter& filter, int64 usage, int64 quota); | 66 Event(const Filter& filter, int64 usage, int64 quota); |
| 67 bool operator==(const Event& other) const; | 67 bool operator==(const Event& other) const; |
| 68 }; | 68 }; |
| 69 | 69 |
| 70 // Will be called on the IO thread when a storage event occurs. | 70 // Will be called on the IO thread when a storage event occurs. |
| 71 virtual void OnStorageEvent(const Event& event) = 0; | 71 virtual void OnStorageEvent(const Event& event) = 0; |
| 72 | 72 |
| 73 protected: | 73 protected: |
| 74 virtual ~StorageObserver() {} | 74 virtual ~StorageObserver() {} |
| 75 }; | 75 }; |
| 76 | 76 |
| 77 } // namespace quota | 77 } // namespace quota |
| 78 | 78 |
| 79 #endif // WEBKIT_BROWSER_QUOTA_STORAGE_OBSERVER_H_ | 79 #endif // WEBKIT_BROWSER_QUOTA_STORAGE_OBSERVER_H_ |
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