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| 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 | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef CHROME_BROWSER_UI_ASH_LAUNCHER_LAUNCHER_FAVICON_LOADER_H_ | |
| 6 #define CHROME_BROWSER_UI_ASH_LAUNCHER_LAUNCHER_FAVICON_LOADER_H_ | |
| 7 | |
| 8 #include <memory> | |
| 9 #include <vector> | |
| 10 | |
| 11 #include "base/callback.h" | |
| 12 #include "base/macros.h" | |
| 13 #include "content/public/common/favicon_url.h" | |
| 14 | |
| 15 class SkBitmap; | |
| 16 | |
| 17 namespace internal { | |
| 18 class FaviconRawBitmapHandler; | |
| 19 } | |
| 20 | |
| 21 namespace content { | |
| 22 class WebContents; | |
| 23 } | |
| 24 | |
| 25 // LauncherFaviconLoader handles updates to the list of favicon urls and | |
| 26 // retrieves the appropriately sized favicon for panels in the Launcher. | |
| 27 | |
| 28 class LauncherFaviconLoader { | |
| 29 public: | |
| 30 class Delegate { | |
| 31 public: | |
| 32 virtual void FaviconUpdated() = 0; | |
| 33 | |
| 34 protected: | |
| 35 virtual ~Delegate() {} | |
| 36 }; | |
| 37 | |
| 38 LauncherFaviconLoader(Delegate* delegate, | |
| 39 content::WebContents* web_contents); | |
| 40 virtual ~LauncherFaviconLoader(); | |
| 41 | |
| 42 content::WebContents* web_contents() { | |
| 43 return web_contents_; | |
| 44 } | |
| 45 | |
| 46 // Returns an appropriately sized favicon for the Launcher. If none are | |
| 47 // available will return an isNull bitmap. | |
| 48 SkBitmap GetFavicon() const; | |
| 49 | |
| 50 // Returns true if the loader is waiting for downloads to finish. | |
| 51 bool HasPendingDownloads() const; | |
| 52 | |
| 53 private: | |
| 54 content::WebContents* web_contents_; | |
| 55 std::unique_ptr<internal::FaviconRawBitmapHandler> favicon_handler_; | |
| 56 | |
| 57 DISALLOW_COPY_AND_ASSIGN(LauncherFaviconLoader); | |
| 58 }; | |
| 59 | |
| 60 #endif // CHROME_BROWSER_UI_ASH_LAUNCHER_LAUNCHER_FAVICON_LOADER_H_ | |
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