content/browser/webui/web_ui_controller_factory_registry.h

   1 // Copyright (c) 2013 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 CONTENT_BROWSER_WEBUI_WEB_UI_CONTROLLER_FACTORY_REGISTRY_H_
   6 #define CONTENT_BROWSER_WEBUI_WEB_UI_CONTROLLER_FACTORY_REGISTRY_H_
   7
   8 #include "base/memory/singleton.h"
   9 #include "content/public/browser/web_ui_controller_factory.h"
  10
  11 namespace content {
  12
  13 // A singleton which holds on to all the registered WebUIControllerFactory
  14 // instances.
  15 class CONTENT_EXPORT WebUIControllerFactoryRegistry
  16     : public WebUIControllerFactory {
  17  public:
  18   static WebUIControllerFactoryRegistry* GetInstance();
  19
  20   // WebUIControllerFactory implementation. Each method loops through the same
  21   // method on all the factories.
  22   WebUIController* CreateWebUIControllerForURL(WebUI* web_ui,
  23                                                const GURL& url) const override;
  24   WebUI::TypeID GetWebUIType(BrowserContext* browser_context,
  25                              const GURL& url) const override;
  26   bool UseWebUIForURL(BrowserContext* browser_context,
  27                       const GURL& url) const override;
  28   bool UseWebUIBindingsForURL(BrowserContext* browser_context,
  29                               const GURL& url) const override;
  30
  31   // Returns true if the given URL can be loaded by Web UI system. This allows
  32   // URLs that UseWebUIForURL returns true for, and also URLs that can be loaded
  33   // by normal tabs such as javascript: URLs or about:hang.
  34   bool IsURLAcceptableForWebUI(BrowserContext* browser_context,
  35                                const GURL& url) const;
  36
  37  private:
  38   friend struct DefaultSingletonTraits<WebUIControllerFactoryRegistry>;
  39
  40   WebUIControllerFactoryRegistry();
  41   ~WebUIControllerFactoryRegistry() override;
  42
  43   DISALLOW_COPY_AND_ASSIGN(WebUIControllerFactoryRegistry);
  44 };
  45
  46 }  // namespace content
  47
  48 #endif  // CONTENT_BROWSER_WEBUI_WEB_UI_CONTROLLER_FACTORY_REGISTRY_H_