content/browser/indexed_db/indexed_db_connection.cc

   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 #include "content/browser/indexed_db/indexed_db_connection.h"
   6
   7 namespace content {
   8
   9 IndexedDBConnection::IndexedDBConnection(
  10     scoped_refptr<IndexedDBDatabase> database,
  11     scoped_refptr<IndexedDBDatabaseCallbacks> callbacks)
  12     : database_(database), callbacks_(callbacks), weak_factory_(this) {}
  13
  14 IndexedDBConnection::~IndexedDBConnection() {}
  15
  16 void IndexedDBConnection::Close() {
  17   if (!callbacks_.get())
  18     return;
  19   base::WeakPtr<IndexedDBConnection> this_obj = weak_factory_.GetWeakPtr();
  20   database_->Close(this, false /* forced */);
  21   if (this_obj) {
  22     database_ = nullptr;
  23     callbacks_ = nullptr;
  24   }
  25 }
  26
  27 void IndexedDBConnection::ForceClose() {
  28   if (!callbacks_.get())
  29     return;
  30
  31   // IndexedDBDatabase::Close() can delete this instance.
  32   base::WeakPtr<IndexedDBConnection> this_obj = weak_factory_.GetWeakPtr();
  33   scoped_refptr<IndexedDBDatabaseCallbacks> callbacks(callbacks_);
  34   database_->Close(this, true /* forced */);
  35   if (this_obj) {
  36     database_ = nullptr;
  37     callbacks_ = nullptr;
  38   }
  39   callbacks->OnForcedClose();
  40 }
  41
  42 void IndexedDBConnection::VersionChangeIgnored() {
  43   if (!database_.get())
  44     return;
  45   database_->VersionChangeIgnored();
  46 }
  47
  48 bool IndexedDBConnection::IsConnected() {
  49   return database_.get() != NULL;
  50 }
  51
  52 }  // namespace content