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,
  34                                            AsyncStatement* aStatement)
  35     : mWindow(aWindow), mStatement(aStatement) {
  36   NS_ASSERTION(mStatement != nullptr, "mStatement is null");
  37 }
  38
  39 JSObject* AsyncStatementParams::WrapObject(JSContext* aCx,
  40                                            JS::Handle<JSObject*> aGivenProto) {
  41   return dom::MozStorageAsyncStatementParams_Binding::Wrap(aCx, this,
  42                                                            aGivenProto);
  43 }
  44
  45 void AsyncStatementParams::NamedGetter(JSContext* aCx, const nsAString& aName,
  46                                        bool& aFound,
  47                                        JS::MutableHandle<JS::Value> aResult,
  48                                        mozilla::ErrorResult& aRv) {
  49   if (!mStatement) {
  50     aRv.Throw(NS_ERROR_NOT_INITIALIZED);
  51     return;
  52   }
  53
  54   // Unfortunately there's no API that lets us return the parameter value.
  55   aFound = false;
  56 }
  57
  58 void AsyncStatementParams::NamedSetter(JSContext* aCx, const nsAString& aName,
  59                                        JS::Handle<JS::Value> aValue,
  60                                        mozilla::ErrorResult& aRv) {
  61   if (!mStatement) {
  62     aRv.Throw(NS_ERROR_NOT_INITIALIZED);
  63     return;
  64   }
  65
  66   NS_ConvertUTF16toUTF8 name(aName);
  67
  68   nsCOMPtr<nsIVariant> variant(convertJSValToVariant(aCx, aValue));
  69   if (!variant) {
  70     aRv.Throw(NS_ERROR_UNEXPECTED);
  71     return;
  72   }
  73
  74   aRv = mStatement->BindByName(name, variant);
  75 }
  76
  77 void AsyncStatementParams::GetSupportedNames(nsTArray<nsString>& aNames) {
  78   // We don't know how many params there are, so we can't implement this for
  79   // AsyncStatementParams.
  80 }
  81
  82 void AsyncStatementParams::IndexedGetter(JSContext* aCx, uint32_t aIndex,
  83                                          bool& aFound,
  84                                          JS::MutableHandle<JS::Value> aResult,
  85                                          mozilla::ErrorResult& aRv) {
  86   if (!mStatement) {
  87     aRv.Throw(NS_ERROR_NOT_INITIALIZED);
  88     return;
  89   }
  90
  91   // Unfortunately there's no API that lets us return the parameter value.
  92   aFound = false;
  93 }
  94
  95 void AsyncStatementParams::IndexedSetter(JSContext* aCx, uint32_t aIndex,
  96                                          JS::Handle<JS::Value> aValue,
  97                                          mozilla::ErrorResult& aRv) {
  98   if (!mStatement) {
  99     aRv.Throw(NS_ERROR_NOT_INITIALIZED);
 100     return;
 101   }
 102
 103   nsCOMPtr<nsIVariant> variant(convertJSValToVariant(aCx, aValue));
 104   if (!variant) {
 105     aRv.Throw(NS_ERROR_UNEXPECTED);
 106     return;
 107   }
 108
 109   aRv = mStatement->BindByIndex(aIndex, variant);
 110 }
 111
 112 }  // namespace storage
 113 }  // namespace mozilla