chrome/browser/ui/webui/local_discovery/local_discovery_ui_handler.h

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_UI_WEBUI_LOCAL_DISCOVERY_LOCAL_DISCOVERY_UI_HANDLER_H_
   6 #define CHROME_BROWSER_UI_WEBUI_LOCAL_DISCOVERY_LOCAL_DISCOVERY_UI_HANDLER_H_
   7
   8 #include <map>
   9 #include <string>
  10 #include <vector>
  11
  12 #include "base/cancelable_callback.h"
  13 #include "base/prefs/pref_member.h"
  14 #include "chrome/browser/local_discovery/cloud_print_printer_list.h"
  15 #include "chrome/browser/local_discovery/privet_device_lister.h"
  16 #include "chrome/browser/local_discovery/privet_http.h"
  17 #include "content/public/browser/notification_observer.h"
  18 #include "content/public/browser/notification_registrar.h"
  19 #include "content/public/browser/web_ui_message_handler.h"
  20
  21 #if defined(ENABLE_FULL_PRINTING) && !defined(OS_CHROMEOS) && \
  22   !defined(OS_MACOSX)
  23 #define CLOUD_PRINT_CONNECTOR_UI_AVAILABLE
  24 #endif
  25
  26 // TODO(noamsml): Factor out full registration flow into single class
  27 namespace local_discovery {
  28
  29 class PrivetConfirmApiCallFlow;
  30 class PrivetHTTPAsynchronousFactory;
  31 class PrivetHTTPResolution;
  32 class ServiceDiscoverySharedClient;
  33
  34 // UI Handler for chrome://devices/
  35 // It listens to local discovery notifications and passes those notifications
  36 // into the Javascript to update the page.
  37 class LocalDiscoveryUIHandler : public content::WebUIMessageHandler,
  38                                 public PrivetRegisterOperation::Delegate,
  39                                 public PrivetDeviceLister::Delegate,
  40                                 public CloudPrintPrinterList::Delegate,
  41                                 content::NotificationObserver {
  42  public:
  43   LocalDiscoveryUIHandler();
  44   virtual ~LocalDiscoveryUIHandler();
  45
  46   static bool GetHasVisible();
  47
  48   // WebUIMessageHandler implementation.
  49   virtual void RegisterMessages() OVERRIDE;
  50
  51   // PrivetRegisterOperation::Delegate implementation.
  52   virtual void OnPrivetRegisterClaimToken(
  53       PrivetRegisterOperation* operation,
  54       const std::string& token,
  55       const GURL& url) OVERRIDE;
  56
  57   virtual void OnPrivetRegisterError(
  58       PrivetRegisterOperation* operation,
  59       const std::string& action,
  60       PrivetRegisterOperation::FailureReason reason,
  61       int printer_http_code,
  62       const base::DictionaryValue* json) OVERRIDE;
  63
  64   virtual void OnPrivetRegisterDone(
  65       PrivetRegisterOperation* operation,
  66       const std::string& device_id) OVERRIDE;
  67
  68   // PrivetDeviceLister::Delegate implementation.
  69   virtual void DeviceChanged(bool added,
  70                              const std::string& name,
  71                              const DeviceDescription& description) OVERRIDE;
  72
  73   virtual void DeviceRemoved(const std::string& name) OVERRIDE;
  74
  75   virtual void DeviceCacheFlushed() OVERRIDE;
  76
  77   // CloudPrintPrinterList::Delegate implementation.
  78   virtual void OnCloudPrintPrinterListReady() OVERRIDE;
  79
  80   virtual void OnCloudPrintPrinterListUnavailable() OVERRIDE;
  81
  82   // content::NotificationObserver implementation.
  83   virtual void Observe(int type,
  84                        const content::NotificationSource& source,
  85                        const content::NotificationDetails& details) OVERRIDE;
  86
  87  private:
  88   typedef std::map<std::string, DeviceDescription> DeviceDescriptionMap;
  89
  90   // Message handlers:
  91   // For when the page is ready to recieve device notifications.
  92   void HandleStart(const base::ListValue* args);
  93
  94   // For when a visibility change occurs.
  95   void HandleIsVisible(const base::ListValue* args);
  96
  97   // For when a user choice is made.
  98   void HandleRegisterDevice(const base::ListValue* args);
  99
 100   // For when a cancelation is made.
 101   void HandleCancelRegistration(const base::ListValue* args);
 102
 103   // For requesting the printer list.
 104   void HandleRequestPrinterList(const base::ListValue* args);
 105
 106   // For opening URLs (relative to the Google Cloud Print base URL) in a new
 107   // tab.
 108   void HandleOpenCloudPrintURL(const base::ListValue* args);
 109
 110   // For showing sync login UI.
 111   void HandleShowSyncUI(const base::ListValue* args);
 112
 113   // For when the IP address of the printer has been resolved for registration.
 114   void StartRegisterHTTP(
 115       scoped_ptr<PrivetHTTPClient> http_client);
 116
 117   // For when the confirm operation on the cloudprint server has finished
 118   // executing.
 119   void OnConfirmDone(CloudPrintBaseApiFlow::Status status);
 120
 121   // Signal to the web interface an error has ocurred while registering.
 122   void SendRegisterError();
 123
 124   // Singal to the web interface that registration has finished.
 125   void SendRegisterDone(const std::string& service_name,
 126                         const DeviceDescription& device);
 127
 128   // Set the visibility of the page.
 129   void SetIsVisible(bool visible);
 130
 131   // Get the sync account email.
 132   std::string GetSyncAccount();
 133
 134   // Get the base cloud print URL.
 135   std::string GetCloudPrintBaseUrl();
 136
 137   // Reset and cancel the current registration.
 138   void ResetCurrentRegistration();
 139
 140   scoped_ptr<base::DictionaryValue> CreatePrinterInfo(
 141       const CloudPrintPrinterList::PrinterDetails& description);
 142
 143   // Announcement hasn't been sent for a certain time after registration
 144   // finished. Consider it failed.
 145   // TODO(noamsml): Re-resolve service first.
 146   void OnAnnouncementTimeoutReached();
 147
 148   void CheckUserLoggedIn();
 149
 150 #if defined(CLOUD_PRINT_CONNECTOR_UI_AVAILABLE)
 151   void StartCloudPrintConnector();
 152   void OnCloudPrintPrefsChanged();
 153   void ShowCloudPrintSetupDialog(const base::ListValue* args);
 154   void HandleDisableCloudPrintConnector(const base::ListValue* args);
 155   void SetupCloudPrintConnectorSection();
 156   void RemoveCloudPrintConnectorSection();
 157   void RefreshCloudPrintStatusFromService();
 158 #endif
 159
 160   // The current HTTP client (used for the current operation).
 161   scoped_ptr<PrivetHTTPClient> current_http_client_;
 162
 163   // The current register operation. Only one allowed at any time.
 164   scoped_ptr<PrivetRegisterOperation> current_register_operation_;
 165
 166   // The current confirm call used during the registration flow.
 167   scoped_ptr<PrivetConfirmApiCallFlow> confirm_api_call_flow_;
 168
 169   // The device lister used to list devices on the local network.
 170   scoped_ptr<PrivetDeviceLister> privet_lister_;
 171
 172   // The service discovery client used listen for devices on the local network.
 173   scoped_refptr<ServiceDiscoverySharedClient> service_discovery_client_;
 174
 175   // A factory for creating the privet HTTP Client.
 176   scoped_ptr<PrivetHTTPAsynchronousFactory> privet_http_factory_;
 177
 178   // An object representing the resolution process for the privet_http_factory.
 179   scoped_ptr<PrivetHTTPResolution> privet_resolution_;
 180
 181   // A map of current device descriptions provided by the PrivetDeviceLister.
 182   DeviceDescriptionMap device_descriptions_;
 183
 184   // Whether or not the page is marked as visible.
 185   bool is_visible_;
 186
 187   // List of printers from cloud print.
 188   scoped_ptr<CloudPrintPrinterList> cloud_print_printer_list_;
 189
 190 #if defined(CLOUD_PRINT_CONNECTOR_UI_AVAILABLE)
 191   StringPrefMember cloud_print_connector_email_;
 192   BooleanPrefMember cloud_print_connector_enabled_;
 193   bool cloud_print_connector_ui_enabled_;
 194 #endif
 195
 196   content::NotificationRegistrar notification_registrar_;
 197   DISALLOW_COPY_AND_ASSIGN(LocalDiscoveryUIHandler);
 198 };
 199
 200 #undef CLOUD_PRINT_CONNECTOR_UI_AVAILABLE
 201
 202 }  // namespace local_discovery
 203 #endif  // CHROME_BROWSER_UI_WEBUI_LOCAL_DISCOVERY_LOCAL_DISCOVERY_UI_HANDLER_H_