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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_VIEWS_AURA_LAUNCHER_LAUNCHER_ICON_LOADER_H_ | |
6 #define CHROME_BROWSER_UI_VIEWS_AURA_LAUNCHER_LAUNCHER_ICON_LOADER_H_ | |
7 #pragma once | |
8 | |
9 #include <map> | |
10 #include <string> | |
11 | |
12 #include "base/memory/scoped_ptr.h" | |
13 #include "chrome/browser/extensions/image_loading_tracker.h" | |
14 #include "chrome/browser/ui/views/aura/launcher/chrome_launcher_delegate.h" | |
15 | |
16 class Extension; | |
17 class Profile; | |
18 | |
19 // Default implementation of LauncherUpdater::AppIconLoader that interacts | |
20 // with the ExtensionService and ImageLoadingTracker to load images. | |
21 class LauncherIconLoader : public ChromeLauncherDelegate::AppIconLoader, | |
22 public ImageLoadingTracker::Observer { | |
23 public: | |
24 LauncherIconLoader(Profile* profile, ChromeLauncherDelegate* host); | |
25 virtual ~LauncherIconLoader(); | |
26 | |
27 // AppIconLoader: | |
28 virtual std::string GetAppID(TabContentsWrapper* tab) OVERRIDE; | |
29 virtual bool IsValidID(const std::string& id) OVERRIDE; | |
30 virtual void FetchImage(const std::string& id) OVERRIDE; | |
31 | |
32 // ImageLoadingTracker::Observer: | |
33 virtual void OnImageLoaded(SkBitmap* image, | |
34 const ExtensionResource& resource, | |
35 int index) OVERRIDE; | |
36 | |
37 private: | |
38 typedef std::map<int, std::string> ImageLoaderIDToExtensionIDMap; | |
39 | |
40 // Returns the extension for the specified tab. | |
41 const Extension* GetExtensionForTab(TabContentsWrapper* tab); | |
42 | |
43 // Returns the extension by ID. | |
44 const Extension* GetExtensionByID(const std::string& id); | |
45 | |
46 Profile* profile_; | |
47 | |
48 // ChromeLauncherDelegate we're associated with (and owned by). | |
49 ChromeLauncherDelegate* host_; | |
50 | |
51 // Used to load images. | |
52 scoped_ptr<ImageLoadingTracker> image_loader_; | |
53 | |
54 // Maps from id from the ImageLoadingTracker to the extension id. | |
55 ImageLoaderIDToExtensionIDMap map_; | |
56 | |
57 DISALLOW_COPY_AND_ASSIGN(LauncherIconLoader); | |
58 }; | |
59 | |
60 #endif // CHROME_BROWSER_UI_VIEWS_AURA_LAUNCHER_LAUNCHER_ICON_LOADER_H_ | |
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