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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 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 COMPONENTS_OPEN_FROM_CLIPBOARD_CLIPBOARD_RECENT_CONTENT_H_ | 5 #ifndef COMPONENTS_OPEN_FROM_CLIPBOARD_CLIPBOARD_RECENT_CONTENT_H_ |
6 #define COMPONENTS_OPEN_FROM_CLIPBOARD_CLIPBOARD_RECENT_CONTENT_H_ | 6 #define COMPONENTS_OPEN_FROM_CLIPBOARD_CLIPBOARD_RECENT_CONTENT_H_ |
7 | 7 |
| 8 #include <memory> |
8 #include <string> | 9 #include <string> |
9 | 10 |
10 #include "base/macros.h" | 11 #include "base/macros.h" |
11 #include "base/time/time.h" | 12 #include "base/time/time.h" |
12 #include "url/gurl.h" | 13 #include "url/gurl.h" |
13 | 14 |
14 // Helper class returning an URL if the content of the clipboard can be turned | 15 // Helper class returning an URL if the content of the clipboard can be turned |
15 // into an URL, and if it estimates that the content of the clipboard is not too | 16 // into an URL, and if it estimates that the content of the clipboard is not too |
16 // old. | 17 // old. |
17 class ClipboardRecentContent { | 18 class ClipboardRecentContent { |
18 public: | 19 public: |
19 ClipboardRecentContent(); | 20 ClipboardRecentContent(); |
20 virtual ~ClipboardRecentContent(); | 21 virtual ~ClipboardRecentContent(); |
21 | 22 |
22 // Returns the global instance of the ClipboardRecentContent singleton. This | 23 // Returns the global instance of the ClipboardRecentContent singleton. This |
23 // method does *not* create the singleton and will return null if no instance | 24 // method does *not* create the singleton and will return null if no instance |
24 // was registered via SetInstance(). | 25 // was registered via SetInstance(). |
25 static ClipboardRecentContent* GetInstance(); | 26 static ClipboardRecentContent* GetInstance(); |
26 | 27 |
27 // Sets the global instance of ClipboardRecentContent singleton. | 28 // Sets the global instance of ClipboardRecentContent singleton. |
28 static void SetInstance(ClipboardRecentContent* instance); | 29 static void SetInstance(std::unique_ptr<ClipboardRecentContent> new_instance); |
29 | 30 |
30 // Returns true if the clipboard contains a recent URL that is appropriate to | 31 // Returns true if the clipboard contains a recent URL that is appropriate to |
31 // be suggested and has not been supressed, and copies it in |url|. | 32 // be suggested and has not been supressed, and copies it in |url|. |
32 // Otherwise, returns false. |url| must not be null. | 33 // Otherwise, returns false. |url| must not be null. |
33 virtual bool GetRecentURLFromClipboard(GURL* url) = 0; | 34 virtual bool GetRecentURLFromClipboard(GURL* url) = 0; |
34 | 35 |
35 // Returns how old the content of the clipboard is. | 36 // Returns how old the content of the clipboard is. |
36 virtual base::TimeDelta GetClipboardContentAge() const = 0; | 37 virtual base::TimeDelta GetClipboardContentAge() const = 0; |
37 | 38 |
38 // Prevent GetRecentURLFromClipboard from returning anything until the | 39 // Prevent GetRecentURLFromClipboard from returning anything until the |
39 // clipboard's content changed. | 40 // clipboard's content changed. |
40 virtual void SuppressClipboardContent() = 0; | 41 virtual void SuppressClipboardContent() = 0; |
41 | 42 |
42 protected: | 43 protected: |
43 // GetRecentURLFromClipboard() should never return a URL from a clipboard | 44 // GetRecentURLFromClipboard() should never return a URL from a clipboard |
44 // older than this. | 45 // older than this. |
45 const base::TimeDelta kMaximumAgeOfClipboard = base::TimeDelta::FromHours(3); | 46 const base::TimeDelta kMaximumAgeOfClipboard = base::TimeDelta::FromHours(3); |
46 | 47 |
47 // Returns true if the URL is appropriate to be suggested. | 48 // Returns true if the URL is appropriate to be suggested. |
48 static bool IsAppropriateSuggestion(const GURL& url); | 49 static bool IsAppropriateSuggestion(const GURL& url); |
49 | 50 |
50 private: | 51 private: |
51 DISALLOW_COPY_AND_ASSIGN(ClipboardRecentContent); | 52 DISALLOW_COPY_AND_ASSIGN(ClipboardRecentContent); |
52 }; | 53 }; |
53 | 54 |
54 #endif // COMPONENTS_OPEN_FROM_CLIPBOARD_CLIPBOARD_RECENT_CONTENT_H_ | 55 #endif // COMPONENTS_OPEN_FROM_CLIPBOARD_CLIPBOARD_RECENT_CONTENT_H_ |
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