chrome/browser/ui/webui/chrome_web_ui_controller_factory.h

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