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 "mozStorageAsyncStatementParams.h"
   8
   9 #include "nsJSUtils.h"
  10 #include "nsMemory.h"
  11 #include "nsString.h"
  12
  13 #include "jsapi.h"
  14
  15 #include "mozilla/ErrorResult.h"
  16 #include "mozilla/dom/MozStorageAsyncStatementParamsBinding.h"
  17 #include "mozStorageAsyncStatement.h"
  18 #include "mozStoragePrivateHelpers.h"
  19
  20 namespace mozilla {
  21 namespace storage {
  22
  23 ////////////////////////////////////////////////////////////////////////////////
  24 //// AsyncStatementParams
  25
  26 NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(AsyncStatementParams, mWindow)
  27
  28 NS_INTERFACE_TABLE_HEAD(AsyncStatementParams)
  29   NS_WRAPPERCACHE_INTERFACE_TABLE_ENTRY
  30   NS_INTERFACE_TABLE(AsyncStatementParams, nsISupports)
  31   NS_INTERFACE_TABLE_TO_MAP_SEGUE_CYCLE_COLLECTION(AsyncStatementParams)
  32 NS_INTERFACE_MAP_END
  33
  34 NS_IMPL_CYCLE_COLLECTING_ADDREF(AsyncStatementParams)
  35 NS_IMPL_CYCLE_COLLECTING_RELEASE(AsyncStatementParams)
  36
  37 AsyncStatementParams::AsyncStatementParams(nsPIDOMWindowInner* aWindow,
  38                                            AsyncStatement* aStatement)
  39     : mWindow(aWindow), mStatement(aStatement) {
  40   NS_ASSERTION(mStatement != nullptr, "mStatement is null");
  41 }
  42
  43 JSObject* AsyncStatementParams::WrapObject(JSContext* aCx,
  44                                            JS::Handle<JSObject*> aGivenProto) {
  45   return dom::MozStorageAsyncStatementParams_Binding::Wrap(aCx, this,
  46                                                            aGivenProto);
  47 }
  48
  49 void AsyncStatementParams::NamedGetter(JSContext* aCx, const nsAString& aName,
  50                                        bool& aFound,
  51                                        JS::MutableHandle<JS::Value> aResult,
  52                                        mozilla::ErrorResult& aRv) {
  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 AsyncStatementParams::NamedSetter(JSContext* aCx, const nsAString& aName,
  63                                        JS::Handle<JS::Value> aValue,
  64                                        mozilla::ErrorResult& aRv) {
  65   if (!mStatement) {
  66     aRv.Throw(NS_ERROR_NOT_INITIALIZED);
  67     return;
  68   }
  69
  70   NS_ConvertUTF16toUTF8 name(aName);
  71
  72   nsCOMPtr<nsIVariant> variant(convertJSValToVariant(aCx, aValue));
  73   if (!variant) {
  74     aRv.Throw(NS_ERROR_UNEXPECTED);
  75     return;
  76   }
  77
  78   aRv = mStatement->BindByName(name, variant);
  79 }
  80
  81 void AsyncStatementParams::GetSupportedNames(nsTArray<nsString>& aNames) {
  82   // We don't know how many params there are, so we can't implement this for
  83   // AsyncStatementParams.
  84 }
  85
  86 void AsyncStatementParams::IndexedGetter(JSContext* aCx, uint32_t aIndex,
  87                                          bool& aFound,
  88                                          JS::MutableHandle<JS::Value> aResult,
  89                                          mozilla::ErrorResult& aRv) {
  90   if (!mStatement) {
  91     aRv.Throw(NS_ERROR_NOT_INITIALIZED);
  92     return;
  93   }
  94
  95   // Unfortunately there's no API that lets us return the parameter value.
  96   aFound = false;
  97 }
  98
  99 void AsyncStatementParams::IndexedSetter(JSContext* aCx, uint32_t aIndex,
 100                                          JS::Handle<JS::Value> aValue,
 101                                          mozilla::ErrorResult& aRv) {
 102   if (!mStatement) {
 103     aRv.Throw(NS_ERROR_NOT_INITIALIZED);
 104     return;
 105   }
 106
 107   nsCOMPtr<nsIVariant> variant(convertJSValToVariant(aCx, aValue));
 108   if (!variant) {
 109     aRv.Throw(NS_ERROR_UNEXPECTED);
 110     return;
 111   }
 112
 113   aRv = mStatement->BindByIndex(aIndex, variant);
 114 }
 115
 116 }  // namespace storage
 117 }  // namespace mozilla