| // Copyright 2016 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 CHROME_BROWSER_UI_WEBUI_SETTINGS_ABOUT_HANDLER_H_ |
| #define CHROME_BROWSER_UI_WEBUI_SETTINGS_ABOUT_HANDLER_H_ |
| |
| #include <memory> |
| #include <string> |
| |
| #include "base/compiler_specific.h" |
| #include "base/macros.h" |
| #include "base/memory/weak_ptr.h" |
| #include "base/strings/string16.h" |
| #include "build/build_config.h" |
| #include "chrome/browser/ui/webui/help/version_updater.h" |
| #include "chrome/browser/ui/webui/settings/settings_page_ui_handler.h" |
| #include "components/policy/core/common/policy_service.h" |
| #include "content/public/browser/notification_observer.h" |
| #include "content/public/browser/notification_registrar.h" |
| #include "content/public/browser/web_ui_message_handler.h" |
| |
| #if defined(OS_CHROMEOS) |
| #include "base/task/cancelable_task_tracker.h" |
| #include "chromeos/system/version_loader.h" |
| #endif // defined(OS_CHROMEOS) |
| |
| namespace base { |
| class DictionaryValue; |
| class FilePath; |
| class ListValue; |
| } |
| |
| namespace content { |
| class WebUIDataSource; |
| } |
| |
| class Profile; |
| |
| namespace settings { |
| |
| // WebUI message handler for the help page. |
| class AboutHandler : public settings::SettingsPageUIHandler, |
| public content::NotificationObserver { |
| public: |
| AboutHandler(); |
| ~AboutHandler() override; |
| |
| static AboutHandler* Create(content::WebUIDataSource* html_source, |
| Profile* profile); |
| |
| // WebUIMessageHandler implementation. |
| void RegisterMessages() override; |
| void OnJavascriptAllowed() override; |
| void OnJavascriptDisallowed() override; |
| |
| // NotificationObserver implementation. |
| void Observe(int type, |
| const content::NotificationSource& source, |
| const content::NotificationDetails& details) override; |
| |
| // Returns the browser version as a string. |
| static base::string16 BuildBrowserVersionString(); |
| |
| private: |
| void OnDeviceAutoUpdatePolicyChanged(const base::Value* previous_policy, |
| const base::Value* current_policy); |
| |
| // Called once the JS page is ready to be called, serves as a signal to the |
| // handler to register C++ observers. |
| void HandlePageReady(const base::ListValue* args); |
| |
| // Called once when the page has loaded. On ChromeOS, this gets the current |
| // update status. On other platforms, it will request and perform an update |
| // (if one is available). |
| void HandleRefreshUpdateStatus(const base::ListValue* args); |
| void RefreshUpdateStatus(); |
| |
| #if defined(OS_MACOSX) |
| // Promotes the updater for all users. |
| void PromoteUpdater(const base::ListValue* args); |
| #endif |
| |
| // Opens the feedback dialog. |args| must be empty. |
| void HandleOpenFeedbackDialog(const base::ListValue* args); |
| |
| // Opens the help page. |args| must be empty. |
| void HandleOpenHelpPage(const base::ListValue* args); |
| |
| #if defined(OS_CHROMEOS) |
| // Sets the release track version. |
| void HandleSetChannel(const base::ListValue* args); |
| |
| // Checks for and applies update, triggered by JS. |
| void HandleRequestUpdate(const base::ListValue* args); |
| |
| // Retrieves OS, ARC and firmware versions. |
| void HandleGetVersionInfo(const base::ListValue* args); |
| void OnGetVersionInfoReady( |
| std::string callback_id, |
| std::unique_ptr<base::DictionaryValue> version_info); |
| |
| void HandleGetCurrentChannel(const base::ListValue* args); |
| void HandleGetTargetChannel(const base::ListValue* args); |
| // C++ callback for either of |HandleGetCurrentChannel| or |
| // |HandleGetTargetChannel|, |
| void OnGetChannelReady(std::string callback_id, const std::string& channel); |
| #endif |
| |
| // Checks for and applies update. |
| void RequestUpdate(); |
| |
| // Callback method which forwards status updates to the page. |
| void SetUpdateStatus(VersionUpdater::Status status, |
| int progress, |
| const base::string16& fail_message); |
| |
| #if defined(OS_MACOSX) |
| // Callback method which forwards promotion state to the page. |
| void SetPromotionState(VersionUpdater::PromotionState state); |
| #endif |
| |
| #if defined(OS_CHROMEOS) |
| void HandleGetRegulatoryInfo(const base::ListValue* args); |
| |
| // Callback for when the directory with the regulatory label image and alt |
| // text has been found. |
| void OnRegulatoryLabelDirFound(std::string callback_id, |
| const base::FilePath& label_dir_path); |
| |
| // Callback for when the regulatory text has been read. |
| void OnRegulatoryLabelTextRead(std::string callback_id, |
| const base::FilePath& label_dir_path, |
| const std::string& text); |
| #endif |
| |
| // Specialized instance of the VersionUpdater used to update the browser. |
| std::unique_ptr<VersionUpdater> version_updater_; |
| |
| // Used to observe notifications. |
| content::NotificationRegistrar registrar_; |
| |
| // Used to observe changes in the |kDeviceAutoUpdateDisabled| policy. |
| std::unique_ptr<policy::PolicyChangeRegistrar> policy_registrar_; |
| |
| // Used for callbacks. |
| base::WeakPtrFactory<AboutHandler> weak_factory_; |
| |
| DISALLOW_COPY_AND_ASSIGN(AboutHandler); |
| }; |
| |
| } // namespace settings |
| |
| #endif // CHROME_BROWSER_UI_WEBUI_SETTINGS_ABOUT_HANDLER_H_ |