| // Copyright 2013 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 COMPONENTS_DOM_DISTILLER_WEBUI_DOM_DISTILLER_HANDLER_H_ |
| #define COMPONENTS_DOM_DISTILLER_WEBUI_DOM_DISTILLER_HANDLER_H_ |
| |
| #include <string> |
| |
| #include "base/memory/weak_ptr.h" |
| #include "base/values.h" |
| #include "content/public/browser/web_ui_message_handler.h" |
| |
| namespace dom_distiller { |
| |
| class DomDistillerService; |
| |
| // Handler class for DOM Distiller list operations. |
| class DomDistillerHandler : public content::WebUIMessageHandler { |
| public: |
| // The lifetime of |service| has to outlive this handler. |
| DomDistillerHandler(DomDistillerService* service, const std::string& scheme); |
| virtual ~DomDistillerHandler(); |
| |
| // content::WebUIMessageHandler implementation. |
| virtual void RegisterMessages() OVERRIDE; |
| |
| // Callback from JavaScript for the "requestEntries" message. This |
| // requests the list of entries and returns it to the front end by calling |
| // "onReceivedEntries". There are no JavaScript arguments to this method. |
| void HandleRequestEntries(const base::ListValue* args); |
| |
| // Callback from JavaScript for when an article should be added. The first |
| // element in |args| should be a string representing the URL to be added. |
| void HandleAddArticle(const base::ListValue* args); |
| |
| // Callback from JavaScript for when an article is selected. The first element |
| // in |args| should be a string representing the ID of the entry to be |
| // selected. |
| void HandleSelectArticle(const base::ListValue* args); |
| |
| // Callback from JavaScript for when viewing a URL is requested. The first |
| // element in |args| should be a string representing the URL to be viewed. |
| void HandleViewUrl(const base::ListValue* args); |
| |
| private: |
| // Callback from DomDistillerService when an article is available. |
| void OnArticleAdded(bool article_available); |
| |
| // The DomDistillerService. |
| DomDistillerService* service_; |
| |
| // The scheme for DOM distiller articles. |
| std::string article_scheme_; |
| |
| // Factory for the creating refs in callbacks. |
| base::WeakPtrFactory<DomDistillerHandler> weak_ptr_factory_; |
| |
| DISALLOW_COPY_AND_ASSIGN(DomDistillerHandler); |
| }; |
| |
| } // namespace dom_distiller |
| |
| #endif // COMPONENTS_DOM_DISTILLER_WEBUI_DOM_DISTILLER_HANDLER_H_ |