storage/mozStorageAsyncStatementParams.cpp

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
   2  * vim: sw=2 ts=2 et lcs=trail\:.,tab\:>~ :
   3  * This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #include "nsJSUtils.h"
   8 #include "nsMemory.h"
   9 #include "nsString.h"
  10
  11 #include "jsapi.h"
  12
  13 #include "mozilla/dom/MozStorageAsyncStatementParamsBinding.h"
  14 #include "mozStoragePrivateHelpers.h"
  15
  16 namespace mozilla {
  17 namespace storage {
  18
  19 ////////////////////////////////////////////////////////////////////////////////
  20 //// AsyncStatementParams
  21
  22 NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(AsyncStatementParams, mWindow)
  23
  24 NS_INTERFACE_TABLE_HEAD(AsyncStatementParams)
  25   NS_WRAPPERCACHE_INTERFACE_TABLE_ENTRY
  26   NS_INTERFACE_TABLE(AsyncStatementParams, nsISupports)
  27   NS_INTERFACE_TABLE_TO_MAP_SEGUE_CYCLE_COLLECTION(AsyncStatementParams)
  28 NS_INTERFACE_MAP_END
  29
  30 NS_IMPL_CYCLE_COLLECTING_ADDREF(AsyncStatementParams)
  31 NS_IMPL_CYCLE_COLLECTING_RELEASE(AsyncStatementParams)
  32
  33 AsyncStatementParams::AsyncStatementParams(nsPIDOMWindowInner* aWindow, AsyncStatement *aStatement)
  34 : mWindow(aWindow),
  35   mStatement(aStatement)
  36 {
  37   NS_ASSERTION(mStatement != nullptr, "mStatement is null");
  38 }
  39
  40 JSObject*
  41 AsyncStatementParams::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
  42 {
  43   return dom::MozStorageAsyncStatementParamsBinding::Wrap(aCx, this, aGivenProto);
  44 }
  45
  46 void
  47 AsyncStatementParams::NamedGetter(JSContext* aCx,
  48                                   const nsAString& aName,
  49                                   bool& aFound,
  50                                   JS::MutableHandle<JS::Value> aResult,
  51                                   mozilla::ErrorResult& aRv)
  52 {
  53   if (!mStatement) {
  54     aRv.Throw(NS_ERROR_NOT_INITIALIZED);
  55     return;
  56   }
  57
  58   // Unfortunately there's no API that lets us return the parameter value.
  59   aFound = false;
  60 }
  61
  62 void
  63 AsyncStatementParams::NamedSetter(JSContext* aCx,
  64                                   const nsAString& aName,
  65                                   JS::Handle<JS::Value> aValue,
  66                                   mozilla::ErrorResult& aRv)
  67 {
  68   if (!mStatement) {
  69     aRv.Throw(NS_ERROR_NOT_INITIALIZED);
  70     return;
  71   }
  72
  73   NS_ConvertUTF16toUTF8 name(aName);
  74
  75   nsCOMPtr<nsIVariant> variant(convertJSValToVariant(aCx, aValue));
  76   if (!variant) {
  77     aRv.Throw(NS_ERROR_UNEXPECTED);
  78     return;
  79   }
  80
  81   aRv = mStatement->BindByName(name, variant);
  82 }
  83
  84 void
  85 AsyncStatementParams::GetSupportedNames(nsTArray<nsString>& aNames)
  86 {
  87   // We don't know how many params there are, so we can't implement this for
  88   // AsyncStatementParams.
  89 }
  90
  91 void
  92 AsyncStatementParams::IndexedGetter(JSContext* aCx,
  93                                     uint32_t aIndex,
  94                                     bool& aFound,
  95                                     JS::MutableHandle<JS::Value> aResult,
  96                                     mozilla::ErrorResult& aRv)
  97 {
  98   if (!mStatement) {
  99     aRv.Throw(NS_ERROR_NOT_INITIALIZED);
 100     return;
 101   }
 102
 103   // Unfortunately there's no API that lets us return the parameter value.
 104   aFound = false;
 105 }
 106
 107 void
 108 AsyncStatementParams::IndexedSetter(JSContext* aCx,
 109                                     uint32_t aIndex,
 110                                     JS::Handle<JS::Value> aValue,
 111                                     mozilla::ErrorResult& aRv)
 112 {
 113   if (!mStatement) {
 114     aRv.Throw(NS_ERROR_NOT_INITIALIZED);
 115     return;
 116   }
 117
 118   nsCOMPtr<nsIVariant> variant(convertJSValToVariant(aCx, aValue));
 119   if (!variant) {
 120     aRv.Throw(NS_ERROR_UNEXPECTED);
 121     return;
 122   }
 123
 124   aRv = mStatement->BindByIndex(aIndex, variant);
 125 }
 126
 127 } // namespace storage
 128 } // namespace mozilla