src/chrome/browser/ui/webui/quota_internals/quota_internals_proxy.h

   1 // Copyright (c) 2012 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_QUOTA_INTERNALS_QUOTA_INTERNALS_PROXY_H_
   6 #define CHROME_BROWSER_UI_WEBUI_QUOTA_INTERNALS_QUOTA_INTERNALS_PROXY_H_
   7
   8 #include <map>
   9 #include <set>
  10 #include <string>
  11 #include <vector>
  12
  13 #include "base/memory/ref_counted.h"
  14 #include "base/memory/weak_ptr.h"
  15 #include "base/sequenced_task_runner_helpers.h"
  16 #include "content/public/browser/browser_thread.h"
  17 #include "webkit/browser/quota/quota_manager.h"
  18 #include "webkit/common/quota/quota_types.h"
  19
  20 namespace quota_internals {
  21
  22 class QuotaInternalsHandler;
  23 class GlobalStorageInfo;
  24 class PerHostStorageInfo;
  25 class PerOriginStorageInfo;
  26 typedef std::map<std::string, std::string> Statistics;
  27
  28 // This class is the bridge between QuotaInternalsHandler and QuotaManager.
  29 // Each QuotaInternalsHandler instances creates and owns a instance of this
  30 // class.
  31 class QuotaInternalsProxy
  32     : public base::RefCountedThreadSafe<
  33           QuotaInternalsProxy,
  34           content::BrowserThread::DeleteOnIOThread> {
  35  public:
  36   explicit QuotaInternalsProxy(QuotaInternalsHandler* handler);
  37
  38   void RequestInfo(scoped_refptr<quota::QuotaManager> quota_manager);
  39
  40  private:
  41   friend class base::DeleteHelper<QuotaInternalsProxy>;
  42   friend struct content::BrowserThread::DeleteOnThread<
  43       content::BrowserThread::IO>;
  44   friend class QuotaInternalsHandler;
  45
  46   typedef quota::QuotaManager::QuotaTableEntries QuotaTableEntries;
  47   typedef quota::QuotaManager::OriginInfoTableEntries OriginInfoTableEntries;
  48
  49   virtual ~QuotaInternalsProxy();
  50
  51   void ReportAvailableSpace(int64 available_space);
  52   void ReportGlobalInfo(const GlobalStorageInfo& data);
  53   void ReportPerHostInfo(const std::vector<PerHostStorageInfo>& hosts);
  54   void ReportPerOriginInfo(const std::vector<PerOriginStorageInfo>& origins);
  55   void ReportStatistics(const Statistics& stats);
  56
  57   // Called on IO Thread by QuotaManager as callback.
  58   void DidGetAvailableSpace(quota::QuotaStatusCode status, int64 space);
  59   void DidGetGlobalQuota(quota::StorageType type,
  60                          quota::QuotaStatusCode status,
  61                          int64 quota);
  62   void DidGetGlobalUsage(quota::StorageType type,
  63                          int64 usage,
  64                          int64 unlimited_usage);
  65   void DidDumpQuotaTable(const QuotaTableEntries& entries);
  66   void DidDumpOriginInfoTable(const OriginInfoTableEntries& entries);
  67   void DidGetHostUsage(const std::string& host,
  68                        quota::StorageType type,
  69                        int64 usage);
  70
  71   // Helper. Called on IO Thread.
  72   void RequestPerOriginInfo(quota::StorageType type);
  73   void VisitHost(const std::string& host, quota::StorageType type);
  74   void GetHostUsage(const std::string& host, quota::StorageType type);
  75
  76   // Used on UI Thread.
  77   QuotaInternalsHandler* handler_;
  78
  79   // Used on IO Thread.
  80   scoped_refptr<quota::QuotaManager> quota_manager_;
  81   std::set<std::pair<std::string, quota::StorageType> >
  82       hosts_visited_, hosts_pending_;
  83   std::vector<PerHostStorageInfo> report_pending_;
  84   base::WeakPtrFactory<QuotaInternalsProxy> weak_factory_;
  85
  86   DISALLOW_COPY_AND_ASSIGN(QuotaInternalsProxy);
  87 };
  88 }  // quota_internals
  89
  90 #endif  // CHROME_BROWSER_UI_WEBUI_QUOTA_INTERNALS_QUOTA_INTERNALS_PROXY_H_