зеркало из https://github.com/mozilla/gecko-dev.git
146 строки
3.9 KiB
C++
146 строки
3.9 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* vim: sw=2 ts=2 et lcs=trail\:.,tab\:>~ :
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsJSUtils.h"
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#include "nsMemory.h"
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#include "nsString.h"
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#include "jsapi.h"
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#include "mozilla/dom/MozStorageStatementParamsBinding.h"
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#include "mozStoragePrivateHelpers.h"
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namespace mozilla {
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namespace storage {
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////////////////////////////////////////////////////////////////////////////////
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//// StatementParams
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NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(StatementParams, mWindow)
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NS_INTERFACE_TABLE_HEAD(StatementParams)
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NS_WRAPPERCACHE_INTERFACE_TABLE_ENTRY
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NS_INTERFACE_TABLE(StatementParams, nsISupports)
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NS_INTERFACE_TABLE_TO_MAP_SEGUE_CYCLE_COLLECTION(StatementParams)
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NS_INTERFACE_MAP_END
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NS_IMPL_CYCLE_COLLECTING_ADDREF(StatementParams)
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NS_IMPL_CYCLE_COLLECTING_RELEASE(StatementParams)
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StatementParams::StatementParams(nsPIDOMWindowInner* aWindow, Statement *aStatement)
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: mWindow(aWindow),
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mStatement(aStatement),
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mParamCount(0)
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{
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NS_ASSERTION(mStatement != nullptr, "mStatement is null");
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(void)mStatement->GetParameterCount(&mParamCount);
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}
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JSObject*
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StatementParams::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
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{
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return dom::MozStorageStatementParams_Binding::Wrap(aCx, this, aGivenProto);
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}
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void
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StatementParams::NamedGetter(JSContext* aCx,
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const nsAString& aName,
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bool& aFound,
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JS::MutableHandle<JS::Value> aResult,
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mozilla::ErrorResult& aRv)
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{
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if (!mStatement) {
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aRv.Throw(NS_ERROR_NOT_INITIALIZED);
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return;
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}
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// Unfortunately there's no API that lets us return the parameter value.
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aFound = false;
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}
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void
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StatementParams::NamedSetter(JSContext* aCx,
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const nsAString& aName,
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JS::Handle<JS::Value> aValue,
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mozilla::ErrorResult& aRv)
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{
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if (!mStatement) {
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aRv.Throw(NS_ERROR_NOT_INITIALIZED);
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return;
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}
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NS_ConvertUTF16toUTF8 name(aName);
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// Check to see if there's a parameter with this name.
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nsCOMPtr<nsIVariant> variant(convertJSValToVariant(aCx, aValue));
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if (!variant) {
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aRv.Throw(NS_ERROR_UNEXPECTED);
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return;
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}
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aRv = mStatement->BindByName(name, variant);
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}
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void
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StatementParams::GetSupportedNames(nsTArray<nsString>& aNames)
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{
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if (!mStatement) {
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return;
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}
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for (uint32_t i = 0; i < mParamCount; i++) {
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// Get the name of our parameter.
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nsAutoCString name;
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nsresult rv = mStatement->GetParameterName(i, name);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return;
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}
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// But drop the first character, which is going to be a ':'.
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name = Substring(name, 1);
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aNames.AppendElement(NS_ConvertUTF8toUTF16(name));
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}
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}
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void
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StatementParams::IndexedGetter(JSContext* aCx,
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uint32_t aIndex,
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bool& aFound,
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JS::MutableHandle<JS::Value> aResult,
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mozilla::ErrorResult& aRv)
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{
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if (!mStatement) {
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aRv.Throw(NS_ERROR_NOT_INITIALIZED);
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return;
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}
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// Unfortunately there's no API that lets us return the parameter value.
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aFound = false;
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}
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void
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StatementParams::IndexedSetter(JSContext* aCx,
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uint32_t aIndex,
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JS::Handle<JS::Value> aValue,
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mozilla::ErrorResult& aRv)
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{
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if (!mStatement) {
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aRv.Throw(NS_ERROR_NOT_INITIALIZED);
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return;
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}
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nsCOMPtr<nsIVariant> variant(convertJSValToVariant(aCx, aValue));
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if (!variant) {
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aRv.Throw(NS_ERROR_UNEXPECTED);
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return;
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}
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aRv = mStatement->BindByIndex(aIndex, variant);
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}
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} // namespace storage
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} // namespace mozilla
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