| // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_ICON_MANAGER_H_ |
| #define CHROME_BROWSER_EXTENSIONS_EXTENSION_ICON_MANAGER_H_ |
| |
| #include <map> |
| #include <set> |
| #include <string> |
| |
| #include "base/macros.h" |
| #include "base/memory/weak_ptr.h" |
| #include "ui/gfx/image/image.h" |
| |
| namespace content { |
| class BrowserContext; |
| } |
| |
| namespace extensions { |
| class Extension; |
| } |
| |
| class ExtensionIconManager { |
| public: |
| class Observer { |
| public: |
| virtual void OnImageLoaded(const std::string& extension_id) = 0; |
| }; |
| |
| ExtensionIconManager(); |
| virtual ~ExtensionIconManager(); |
| |
| // Start loading the icon for the given extension. |
| void LoadIcon(content::BrowserContext* context, |
| const extensions::Extension* extension); |
| |
| // This returns an image of width/height kFaviconSize, loaded either from an |
| // entry specified in the extension's 'icon' section of the manifest, or a |
| // default extension icon. |
| gfx::Image GetIcon(const std::string& extension_id); |
| |
| // Removes the extension's icon from memory. |
| void RemoveIcon(const std::string& extension_id); |
| |
| void set_monochrome(bool value) { monochrome_ = value; } |
| void set_observer(Observer* observer) { observer_ = observer; } |
| |
| private: |
| void OnImageLoaded(const std::string& extension_id, const gfx::Image& image); |
| |
| // Makes sure we've done one-time initialization of the default extension icon |
| // default_icon_. |
| void EnsureDefaultIcon(); |
| |
| // Maps extension id to the icon for that extension. |
| std::map<std::string, gfx::Image> icons_; |
| |
| // Set of extension IDs waiting for icons to load. |
| std::set<std::string> pending_icons_; |
| |
| // The default icon we'll use if an extension doesn't have one. |
| gfx::Image default_icon_; |
| |
| // If true, we will desaturate the icons to make them monochromatic. |
| bool monochrome_ = false; |
| |
| Observer* observer_ = nullptr; |
| |
| base::WeakPtrFactory<ExtensionIconManager> weak_ptr_factory_{this}; |
| |
| DISALLOW_COPY_AND_ASSIGN(ExtensionIconManager); |
| }; |
| |
| #endif // CHROME_BROWSER_EXTENSIONS_EXTENSION_ICON_MANAGER_H_ |