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   content::WebUI::TypeID GetWebUIType(content::BrowserContext* browser_context,
  24                                       const GURL& url) const override;
  25   bool UseWebUIForURL(content::BrowserContext* browser_context,
  26                       const GURL& url) const override;
  27   bool UseWebUIBindingsForURL(content::BrowserContext* browser_context,
  28                               const GURL& url) const override;
  29   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<int>& desired_sizes_in_pixel,
  39       const favicon_base::FaviconResultsCallback& callback) const;
  40
  41   static ChromeWebUIControllerFactory* GetInstance();
  42
  43  protected:
  44   ChromeWebUIControllerFactory();
  45   ~ChromeWebUIControllerFactory() override;
  46
  47  private:
  48   friend struct base::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_