Options2: Pull the trigger.

chrome/browser/ui/webui/options2/chromeos/virtual_keyboard_manager_handler.h

+// Copyright (c) 2011 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_OPTIONS2_CHROMEOS_VIRTUAL_KEYBOARD_MANAGER_HANDLER_H_
+#define CHROME_BROWSER_UI_WEBUI_OPTIONS2_CHROMEOS_VIRTUAL_KEYBOARD_MANAGER_HANDLER_H_
+#pragma once
+
+#include <map>
+#include <set>
+#include <string>
+
+#include "chrome/browser/ui/webui/options2/options_ui2.h"
+#include "googleurl/src/gurl.h"
+
+namespace base {
+class DictionaryValue;
+class ListValue;
+}  // namespace base
+
+namespace chromeos {
+
+namespace input_method {
+class VirtualKeyboard;
+}  // namespace input_method;
+
+// A class which provides information to virtual_keyboard.js.
+class VirtualKeyboardManagerHandler : public OptionsPage2UIHandler {
+ public:
+  VirtualKeyboardManagerHandler();
+  virtual ~VirtualKeyboardManagerHandler();
+
+  // OptionsPage2UIHandler implementation.
+  virtual void GetLocalizedValues(
+      base::DictionaryValue* localized_strings) OVERRIDE;
+  virtual void Initialize() OVERRIDE;
+  virtual void RegisterMessages() OVERRIDE;
+
+ protected:
+  typedef std::multimap<
+   std::string, const input_method::VirtualKeyboard*> LayoutToKeyboard;
+  typedef std::map<GURL, const input_method::VirtualKeyboard*> UrlToKeyboard;
+
+  // Returns true if |layout_to_keyboard| contains |layout| as a key, and the
+  // value for |layout| contains |url|. This function is protected for
+  // testability.
+  static bool ValidateUrl(const UrlToKeyboard& url_to_keyboard,
+                          const std::string& layout,
+                          const std::string& url);
+
+  // Builds a list from |layout_to_keyboard| and |virtual_keyboard_user_pref|.
+  // See virtual_keyboard_list.js for an example of the format the list should
+  // take. This function is protected for testability.
+  static base::ListValue* CreateVirtualKeyboardList(
+      const LayoutToKeyboard& layout_to_keyboard,
+      const UrlToKeyboard& url_to_keyboard,
+      const base::DictionaryValue* virtual_keyboard_user_pref);
+
+ private:
+  // Reads user pref and create a list using CreateVirtualKeyboardList().
+  base::ListValue* GetVirtualKeyboardList();
+
+  // Handles chrome.send("updateVirtualKeyboardList") JS call.
+  // TODO(yusukes): This function should also be called when user pref is
+  // updated by chrome://settings page in other tab.
+  void UpdateVirtualKeyboardList(const base::ListValue* args);
+
+  // Handles chrome.send("setVirtualKeyboardPreference") JS call.
+  void SetVirtualKeyboardPreference(const base::ListValue* args);
+  // Handles chrome.send("clearVirtualKeyboardPreference") JS call.
+  void ClearVirtualKeyboardPreference(const base::ListValue* args);
+
+  DISALLOW_COPY_AND_ASSIGN(VirtualKeyboardManagerHandler);
+};
+
+}  // namespace chromeos
+
+#endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS2_CHROMEOS_VIRTUAL_KEYBOARD_MANAGER_HANDLER_H_