| // Copyright (c) 2012 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_USER_STYLE_SHEET_WATCHER_H_ |
| #define CHROME_BROWSER_USER_STYLE_SHEET_WATCHER_H_ |
| |
| #include "base/files/file_path.h" |
| #include "base/files/file_path_watcher.h" |
| #include "base/memory/ref_counted.h" |
| #include "base/memory/scoped_ptr.h" |
| #include "base/sequenced_task_runner_helpers.h" |
| #include "components/browser_context_keyed_service/refcounted_browser_context_keyed_service.h" |
| #include "content/public/browser/notification_observer.h" |
| #include "content/public/browser/notification_registrar.h" |
| #include "url/gurl.h" |
| |
| class Profile; |
| class UserStyleSheetLoader; |
| |
| // Watches the user style sheet file and triggers reloads on the file thread |
| // whenever the file changes. |
| class UserStyleSheetWatcher |
| : public content::NotificationObserver, |
| public RefcountedBrowserContextKeyedService { |
| public: |
| UserStyleSheetWatcher(Profile* profile, const base::FilePath& profile_path); |
| |
| void Init(); |
| |
| GURL user_style_sheet() const; |
| |
| // content::NotificationObserver interface |
| virtual void Observe(int type, |
| const content::NotificationSource& source, |
| const content::NotificationDetails& details) OVERRIDE; |
| |
| // RefCountedProfileKeyedBase method override. |
| virtual void ShutdownOnUIThread() OVERRIDE; |
| |
| private: |
| friend class base::DeleteHelper<UserStyleSheetWatcher>; |
| |
| virtual ~UserStyleSheetWatcher(); |
| |
| // The profile owning us. |
| Profile* profile_; |
| |
| // The directory containing User StyleSheets/Custom.css. |
| base::FilePath profile_path_; |
| |
| // The loader object. |
| scoped_refptr<UserStyleSheetLoader> loader_; |
| |
| // Watches for changes to the css file so we can reload the style sheet. |
| scoped_ptr<base::FilePathWatcher> file_watcher_; |
| |
| content::NotificationRegistrar registrar_; |
| |
| DISALLOW_COPY_AND_ASSIGN(UserStyleSheetWatcher); |
| }; |
| |
| #endif // CHROME_BROWSER_USER_STYLE_SHEET_WATCHER_H_ |