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1 // Copyright 2017 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_CHROMEOS_APP_MODE_KIOSK_APP_ICON_LOADER_H_ | |
6 #define CHROME_BROWSER_CHROMEOS_APP_MODE_KIOSK_APP_ICON_LOADER_H_ | |
7 | |
8 #include "base/memory/ref_counted_memory.h" | |
9 #include "base/memory/weak_ptr.h" | |
10 #include "base/optional.h" | |
11 #include "base/sequenced_task_runner.h" | |
12 #include "ui/gfx/image/image_skia.h" | |
13 | |
14 namespace base { | |
15 class FilePath; | |
16 } | |
17 | |
18 namespace chromeos { | |
19 | |
20 // Loads locally stored icon data and decodes it. | |
21 class KioskAppIconLoader { | |
22 public: | |
23 enum LoadResult { | |
24 SUCCESS, | |
25 FAILED_TO_LOAD, | |
26 FAILED_TO_DECODE, | |
27 }; | |
28 | |
29 class Delegate { | |
30 public: | |
31 virtual void OnIconLoadSuccess(const gfx::ImageSkia& icon) = 0; | |
32 virtual void OnIconLoadFailure() = 0; | |
33 | |
34 protected: | |
35 virtual ~Delegate() = default; | |
36 }; | |
37 | |
38 typedef base::Callback<void(base::Optional<gfx::ImageSkia> result)> | |
Luis Héctor Chávez
2017/04/06 16:16:50
prefer using:
using ResultCallback = base::Callba
Sergey Poromov
2017/04/07 02:09:38
Done.
| |
39 ResultCallback; | |
40 | |
41 explicit KioskAppIconLoader(Delegate* delegate); | |
42 | |
43 ~KioskAppIconLoader(); | |
44 | |
45 void Start(const base::FilePath& icon_path); | |
46 | |
47 private: | |
48 void OnImageDecodingFinished(base::Optional<gfx::ImageSkia> result); | |
49 | |
50 // Delegate always live longer than this class as it's owned by delegate. | |
Luis Héctor Chávez
2017/04/06 16:16:50
nit: s/live/lives/
Sergey Poromov
2017/04/07 02:09:38
Done.
| |
51 Delegate* const delegate_; | |
52 | |
53 scoped_refptr<base::SequencedTaskRunner> task_runner_; | |
54 | |
55 gfx::ImageSkia icon_; | |
56 | |
57 base::WeakPtrFactory<KioskAppIconLoader> weak_factory_; | |
58 | |
59 DISALLOW_COPY_AND_ASSIGN(KioskAppIconLoader); | |
60 }; | |
61 | |
62 } // namespace chromeos | |
63 | |
64 #endif // CHROME_BROWSER_CHROMEOS_APP_MODE_KIOSK_APP_ICON_LOADER_H_ | |
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