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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 | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef COMPONENTS_FAVICON_CORE_FAVICON_HANDLER_DELEGATE_H_ | |
6 #define COMPONENTS_FAVICON_CORE_FAVICON_HANDLER_DELEGATE_H_ | |
7 | |
8 class GURL; | |
9 | |
10 namespace content { | |
11 // TODO(jif): Abstract the NavigationEntry (crbug.com/359598). | |
12 class NavigationEntry; | |
13 } | |
14 | |
15 // This class provides a delegate interface for a FaviconHandler. It allows the | |
16 // FaviconHandler to ask its delegate for information or notify its delegate | |
17 // about changes. | |
18 class FaviconHandlerDelegate { | |
19 public: | |
20 // Returns the current NavigationEntry. | |
21 // TODO(jif): Abstract the NavigationEntry (crbug.com/359598). | |
22 virtual content::NavigationEntry* GetActiveEntry() = 0; | |
23 | |
24 // Starts the download for the given favicon. When finished, the delegate | |
25 // will call OnDidDownloadFavicon() with the results. | |
26 // Returns the unique id of the download request. The id will be passed | |
27 // in OnDidDownloadFavicon(). | |
28 // Bitmaps with pixel sizes larger than |max_bitmap_size| are filtered out | |
29 // from the bitmap results. If there are no bitmap results <= | |
30 // |max_bitmap_size|, the smallest bitmap is resized to |max_bitmap_size| and | |
31 // is the only result. A |max_bitmap_size| of 0 means unlimited. | |
32 virtual int StartDownload(const GURL& url, int max_bitmap_size) = 0; | |
33 | |
34 // Notifies the delegate that the favicon for the active entry was updated. | |
35 // |icon_url_changed| is true if a favicon with a different icon URL has | |
36 // been selected since the previous call to NotifyFaviconUpdated(). | |
37 virtual void NotifyFaviconUpdated(bool icon_url_changed) = 0; | |
38 | |
39 // Returns whether the user is operating in an off-the-record context. | |
40 virtual bool IsOffTheRecord() = 0; | |
41 }; | |
42 | |
43 #endif // COMPONENTS_FAVICON_CORE_FAVICON_HANDLER_DELEGATE_H_ | |
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