Option dialog DOM UI - ChromeOS System page.

chrome/browser/dom_ui/options_ui.h

+// Copyright (c) 2010 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_DOM_UI_OPTIONS_UI_H_
+#define CHROME_BROWSER_DOM_UI_OPTIONS_UI_H_
+
+#include <string>
+#include <vector>
+
+#include "base/scoped_ptr.h"
+#include "chrome/browser/dom_ui/chrome_url_data_manager.h"
+#include "chrome/browser/dom_ui/dom_ui.h"
+#include "chrome/common/notification_registrar.h"
+#include "chrome/common/notification_type.h"
+
+class GURL;
+class PrefService;
+struct UserMetricsAction;
+
+class OptionsUIHTMLSource : public ChromeURLDataManager::DataSource {
+ public:
+  // The constructor takes over ownership of |localized_strings|.
+  explicit OptionsUIHTMLSource(DictionaryValue* localized_strings);
+  virtual ~OptionsUIHTMLSource() {}
+
+  // Called when the network layer has requested a resource underneath
+  // the path we registered.
+  virtual void StartDataRequest(const std::string& path,
+                                bool is_off_the_record,
+                                int request_id);
+  virtual std::string GetMimeType(const std::string&) const {
+    return "text/html";
+  }
+
+ private:
+   // Localized strings collection.
+  scoped_ptr<DictionaryValue> localized_strings_;
+
+  DISALLOW_COPY_AND_ASSIGN(OptionsUIHTMLSource);
+};
+
+// The base class handler of Javascript messages of options pages.
+class OptionsPageUIHandler : public DOMMessageHandler,
+                             public NotificationObserver {
+ public:
+  OptionsPageUIHandler();
+  virtual ~OptionsPageUIHandler();
+
+  // Collects localized strings for options page.
+  virtual void GetLocalizedValues(DictionaryValue* localized_strings) = 0;
+
+  // DOMMessageHandler implementation.
+  virtual void RegisterMessages() {}
+
+  // NotificationObserver implementation.
+  virtual void Observe(NotificationType type,
+                       const NotificationSource& source,
+                       const NotificationDetails& details) {}
+
+  void UserMetricsRecordAction(const UserMetricsAction& action,
+                               PrefService* prefs);
+
+ protected:
+  NotificationRegistrar registrar_;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(OptionsPageUIHandler);
+};
+
+class OptionsUI : public DOMUI {
+ public:
+  explicit OptionsUI(TabContents* contents);
+  virtual ~OptionsUI() {}
+
+ private:
+  void AddOptionsPageUIHandler(DictionaryValue* localized_strings,
+                               OptionsPageUIHandler* handler);
+
+  DISALLOW_COPY_AND_ASSIGN(OptionsUI);
+};
+
+#endif  // CHROME_BROWSER_DOM_UI_OPTIONS_UI_H_