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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_WEBUI_CHROME_WEB_UI_CONTROLLER_FACTORY_H_
      6 #define CHROME_BROWSER_UI_WEBUI_CHROME_WEB_UI_CONTROLLER_FACTORY_H_
      7 
      8 #include "base/basictypes.h"
      9 #include "base/memory/singleton.h"
     10 #include "content/public/browser/web_ui.h"
     11 #include "content/public/browser/web_ui_controller_factory.h"
     12 #include "chrome/browser/favicon/favicon_service.h"
     13 
     14 class Profile;
     15 
     16 namespace base {
     17 class RefCountedMemory;
     18 }
     19 
     20 class ChromeWebUIControllerFactory : public content::WebUIControllerFactory {
     21  public:
     22   virtual content::WebUI::TypeID GetWebUIType(
     23       content::BrowserContext* browser_context,
     24       const GURL& url) const OVERRIDE;
     25   virtual bool UseWebUIForURL(content::BrowserContext* browser_context,
     26                               const GURL& url) const OVERRIDE;
     27   virtual bool UseWebUIBindingsForURL(content::BrowserContext* browser_context,
     28                                       const GURL& url) const OVERRIDE;
     29   virtual content::WebUIController* CreateWebUIControllerForURL(
     30       content::WebUI* web_ui,
     31       const GURL& url) const OVERRIDE;
     32 
     33   // Get the favicon for |page_url| and run |callback| with result when loaded.
     34   // Note. |callback| is always run asynchronously.
     35   void GetFaviconForURL(
     36       Profile* profile,
     37       const GURL& page_url,
     38       const std::vector<ui::ScaleFactor>& scale_factors,
     39       const FaviconService::FaviconResultsCallback& callback) const;
     40 
     41   static ChromeWebUIControllerFactory* GetInstance();
     42 
     43  protected:
     44   ChromeWebUIControllerFactory();
     45   virtual ~ChromeWebUIControllerFactory();
     46 
     47  private:
     48   friend struct DefaultSingletonTraits<ChromeWebUIControllerFactory>;
     49 
     50   // Gets the data for the favicon for a WebUI page. Returns NULL if the WebUI
     51   // does not have a favicon.
     52   // The returned favicon data must be
     53   // |gfx::kFaviconSize| x |gfx::kFaviconSize| DIP. GetFaviconForURL() should
     54   // be updated if this changes.
     55   base::RefCountedMemory* GetFaviconResourceBytes(
     56       const GURL& page_url, ui::ScaleFactor scale_factor) const;
     57 
     58   DISALLOW_COPY_AND_ASSIGN(ChromeWebUIControllerFactory);
     59 };
     60 
     61 #endif  // CHROME_BROWSER_UI_WEBUI_CHROME_WEB_UI_CONTROLLER_FACTORY_H_
     62