GCP2.0 Device: Receiving printjobs.

cloud_print/gcp20/prototype/printer.h

 // Copyright 2013 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 GCP20_PROTOTYPE_PRINTER_H_
 #define GCP20_PROTOTYPE_PRINTER_H_
 
 #include <string>
 #include <vector>
 
 #include "base/memory/weak_ptr.h"
 #include "cloud_print/gcp20/prototype/cloud_print_requester.h"
 #include "cloud_print/gcp20/prototype/dns_sd_server.h"
+#include "cloud_print/gcp20/prototype/print_job_handler.h"
 #include "cloud_print/gcp20/prototype/privet_http_server.h"
 #include "cloud_print/gcp20/prototype/x_privet_token.h"
 
-// This class maintain work of DNS-SD server, HTTP server and others.
+extern const char kPrinterStatePath[];
+
+// This class maintains work of DNS-SD server, HTTP server and others.
 class Printer : public base::SupportsWeakPtr<Printer>,
                 public PrivetHttpServer::Delegate,
                 public CloudPrintRequester::Delegate {
  public:
   // Constructs uninitialized object.
   Printer();
 
   // Destroys the object.
   virtual ~Printer();
 
   // Starts all servers.
   bool Start();
 
   // Returns true if printer was started.
   bool IsOnline() const;
 
+  // Method for trying to reconnecting to server.
+  void WakeUp();
+
   // Stops all servers.
   void Stop();
 
  private:
   struct RegistrationInfo {
     enum RegistrationState {
       DEV_REG_UNREGISTERED,
       DEV_REG_REGISTRATION_STARTED,  // |action=start| was called,
                                      // request to CloudPrint was sent.
       DEV_REG_REGISTRATION_CLAIM_TOKEN_READY,  // The same as previous,
@@ skipping 28 matching lines @@
     std::string error_description;
   };
 
   enum RegistrationAction {
     REG_ACTION_START,
     REG_ACTION_GET_CLAIM_TOKEN,
     REG_ACTION_COMPLETE,
     REG_ACTION_CANCEL
   };
 
+  enum ConnectionState {
+    NOT_CONFIGURED,
+    OFFLINE,
+    ONLINE,
+    CONNECTING
+  };
+
   // PrivetHttpServer::Delegate methods:
   virtual PrivetHttpServer::RegistrationErrorStatus RegistrationStart(
       const std::string& user) OVERRIDE;
   virtual PrivetHttpServer::RegistrationErrorStatus RegistrationGetClaimToken(
       const std::string& user,
       std::string* token,
       std::string* claim_url) OVERRIDE;
   virtual PrivetHttpServer::RegistrationErrorStatus RegistrationComplete(
       const std::string& user,
       std::string* device_id) OVERRIDE;
   virtual PrivetHttpServer::RegistrationErrorStatus RegistrationCancel(
       const std::string& user) OVERRIDE;
   virtual void GetRegistrationServerError(std::string* description) OVERRIDE;
   virtual void CreateInfo(PrivetHttpServer::DeviceInfo* info) OVERRIDE;
   virtual bool IsRegistered() const OVERRIDE;
   virtual bool CheckXPrivetTokenHeader(const std::string& token) const OVERRIDE;
 
   // CloudRequester::Delegate methods:
   virtual void OnRegistrationStartResponseParsed(
       const std::string& registration_token,
       const std::string& complete_invite_url,
       const std::string& device_id) OVERRIDE;
   virtual void OnGetAuthCodeResponseParsed(
       const std::string& refresh_token) OVERRIDE;
   virtual void OnRegistrationError(const std::string& description) OVERRIDE;
+  virtual void OnServerError(const std::string& description) OVERRIDE;
+  virtual void OnNetworkError() OVERRIDE;
+  virtual void OnPrintJobsAvailable(
+      const std::vector<cloud_print_response_parser::Job>& jobs) OVERRIDE;
+  virtual void OnPrintJobDownloaded(
+      const cloud_print_response_parser::Job& job) OVERRIDE;
+  virtual void OnPrintJobDone() OVERRIDE;
 
   // Checks if register call is called correctly (|user| is correct,
   // error is no set etc). Returns |false| if error status is put into |status|.
   // Otherwise no error was occurred.
   PrivetHttpServer::RegistrationErrorStatus CheckCommonRegErrors(
       const std::string& user) const;
 
+  // Checks if confirmation was received.
+  void WaitUserConfirmation(base::Time valid_until);
+
   // Generates ProxyId for this device.
   std::string GenerateProxyId() const;
 
-  // Checks if confirmation was received.
-  void WaitUserConfirmation(base::Time valid_until);
-
   // Creates data for DNS TXT respond.
   std::vector<std::string> CreateTxt() const;
 
+  // Ask CloudPrint server for printjobs.
+  void FetchPrintJobs();
+
   // Saving and loading registration info from file.
   void SaveToFile(const std::string& filename) const;
   bool LoadFromFile(const std::string& filename);
 
+  // Adds |WakeUp| method to the MessageLoop.
+  void PostWakeUp();
+
+  // Adds |WakeUp| method to the MessageLoop with certain |delay|.
+  void PostDelayedWakeUp(const base::TimeDelta& delay);
+
   // Converts errors.
   PrivetHttpServer::RegistrationErrorStatus ConfirmationToRegistrationError(
       RegistrationInfo::ConfirmationState state);
 
+  std::string ConnectionStateToString(ConnectionState state) const;
+
+  // Changes state and update info in DNS server.
+  bool ChangeState(ConnectionState new_state);
+
   RegistrationInfo reg_info_;
 
   // Contains DNS-SD server.
   DnsSdServer dns_server_;
 
   // Contains Privet HTTP server.
   PrivetHttpServer http_server_;
 
-  // Contains Cloud Print client.
+  // Connection state of device.
+  ConnectionState connection_state_;
+
+  // Contains CloudPrint client.
   scoped_ptr<CloudPrintRequester> requester_;
 
   XPrivetToken xtoken_;
 
+  scoped_ptr<PrintJobHandler> print_job_handler_;
+
   // Uses for calculating uptime.
   base::Time starttime_;
 
   DISALLOW_COPY_AND_ASSIGN(Printer);
 };
 
 #endif  // GCP20_PROTOTYPE_PRINTER_H_