Add Chrome To Mobile Service and Views Page Action.

chrome/browser/chrome_to_mobile_service.h

+// 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_CHROME_TO_MOBILE_SERVICE_H_
+#define CHROME_BROWSER_CHROME_TO_MOBILE_SERVICE_H_
+#pragma once
+
+#include <map>
+#include <string>
+#include <vector>
+
+#include "base/file_util.h"
+#include "base/memory/weak_ptr.h"
+#include "base/scoped_temp_dir.h"
+#include "base/string16.h"
+#include "base/timer.h"
+#include "chrome/browser/profiles/profile_keyed_service.h"
+#include "chrome/common/net/gaia/oauth2_access_token_consumer.h"
+#include "content/public/common/url_fetcher_delegate.h"
+#include "googleurl/src/gurl.h"
+
+class OAuth2AccessTokenFetcher;
+class CloudPrintURL;
+class Profile;
+
+// ChromeToMobileService connects to the cloud print service to enumerate
+// compatible mobiles owned by its profile and send URLs and MHTML snapshots.
+// The mobile list updates regularly, and explicitly by RequestMobileListUpdate.
+class ChromeToMobileService : public ProfileKeyedService,
+                              public content::URLFetcherDelegate,
+                              public OAuth2AccessTokenConsumer {
+ public:
+  class Observer {
+   public:
+    virtual ~Observer();
+
+    // Called on generation of the page's MHTML snapshot.
+    virtual void SnapshotGenerated(const FilePath& path, int64 bytes) = 0;
+
+    // Called after URLFetcher responses from sending the URL (and snapshot).
+    virtual void OnSendComplete(bool success) = 0;
+  };
+
+  // The URLFetcher request types.
+  enum RequestType {
+    SEARCH,
+    URL,
+    DELAYED_SNAPSHOT,
+    SNAPSHOT,
+  };
+
+  // The aggregated URLFetcher submission data.
+  struct RequestData {
+    RequestData();
+    ~RequestData();
+
+    string16 mobile_id;
+    GURL url;
+    string16 title;
+    FilePath snapshot_path;
+    std::string snapshot_id;
+    RequestType type;
+  };
+
+  explicit ChromeToMobileService(Profile* profile);
+  virtual ~ChromeToMobileService();
+
+  // content::URLFetcherDelegate methods.
+  virtual void OnURLFetchComplete(const content::URLFetcher* source) OVERRIDE;
+
+  // OAuth2AccessTokenConsumer methods.
+  virtual void OnGetTokenSuccess(const std::string& access_token) OVERRIDE;
+  virtual void OnGetTokenFailure(const GoogleServiceAuthError& error) OVERRIDE;
+
+  // Get the list of mobile devices.
+  const std::vector<base::DictionaryValue*>& mobiles() { return mobiles_; }
+
+  // Request an updated mobile device list, request auth first if needed.
+  void RequestMobileListUpdate();
+
+  // Callback with an MHTML snapshot of the profile's selected WebContents.
+  void GenerateSnapshot(base::WeakPtr<Observer> observer);
+
+  // Send the profile's selected WebContents to the specified mobile device.
+  void SendToMobile(const string16& mobile_id,
+                    const FilePath& snapshot,
+                    base::WeakPtr<Observer> observer);
+
+ private:
+  // Utility function to initialize the ScopedTempDir.
+  void CreateUniqueTempDir();
+
+  // Utility function to create URLFetcher requests.
+  content::URLFetcher* CreateRequest(const RequestData& data);
+
+  void RequestAuth();
+  void RequestSearch();
+
+  void HandleSearchResponse();
+  void HandleSubmitResponse(const content::URLFetcher* source);
+
+  Profile* profile_;
+
+  // A utility class for accessing the cloud print service.
+  scoped_ptr<CloudPrintURL> cloud_print_url_;
+
+  // The list of mobile devices retrieved from the cloud print service.
+  std::vector<base::DictionaryValue*> mobiles_;
+
+  // The temporary directory for MHTML snapshot files.
+  ScopedTempDir temp_dir_;
+
+  // Map URLFetchers to observers for reporting OnSendComplete.
+  typedef std::map<const content::URLFetcher*, base::WeakPtr<Observer> >
+      RequestObserverMap;
+  RequestObserverMap request_observer_map_;
+
+  // The OAuth2 token and retry count.
+  std::string oauth2_token_;
+  size_t oauth2_retry_count_;
+
+  // The pending URL requests.
+  scoped_ptr<OAuth2AccessTokenFetcher> oauth2_request_;
+  scoped_ptr<content::URLFetcher> search_request_;
+
+  // A timer for authentication retries and mobile device list updates.
+  base::OneShotTimer<ChromeToMobileService> request_timer_;
+
+  DISALLOW_COPY_AND_ASSIGN(ChromeToMobileService);
+};
+
+#endif  // CHROME_BROWSER_CHROME_TO_MOBILE_SERVICE_H_