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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: sw=2 ts=2 et lcs=trail\:.,tab\:>~ :
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsString.h"
#include "mozilla/ErrorResult.h"
#include "mozilla/dom/MozStorageStatementRowBinding.h"
#include "mozStorageStatementRow.h"
#include "mozStorageStatement.h"
#include "jsapi.h"
#include "js/Array.h" // JS::NewArrayObject
#include "js/PropertyAndElement.h" // JS_DefineElement
#include "js/Value.h"
#include "xpc_make_class.h"
namespace mozilla {
namespace storage {
////////////////////////////////////////////////////////////////////////////////
//// StatementRow
NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(StatementRow, mWindow)
NS_INTERFACE_TABLE_HEAD(StatementRow)
NS_WRAPPERCACHE_INTERFACE_TABLE_ENTRY
NS_INTERFACE_TABLE(StatementRow, nsISupports)
NS_INTERFACE_TABLE_TO_MAP_SEGUE_CYCLE_COLLECTION(StatementRow)
NS_INTERFACE_MAP_END
NS_IMPL_CYCLE_COLLECTING_ADDREF(StatementRow)
NS_IMPL_CYCLE_COLLECTING_RELEASE(StatementRow)
StatementRow::StatementRow(nsPIDOMWindowInner* aWindow, Statement* aStatement)
: mWindow(aWindow), mStatement(aStatement) {}
JSObject* StatementRow::WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) {
return dom::MozStorageStatementRow_Binding::Wrap(aCx, this, aGivenProto);
}
void StatementRow::NamedGetter(JSContext* aCx, const nsAString& aName,
bool& aFound,
JS::MutableHandle<JS::Value> aResult,
mozilla::ErrorResult& aRv) {
if (!mStatement) {
aRv.Throw(NS_ERROR_NOT_INITIALIZED);
return;
}
nsCString name = NS_ConvertUTF16toUTF8(aName);
uint32_t idx;
{
nsresult rv = mStatement->GetColumnIndex(name, &idx);
if (NS_FAILED(rv)) {
// It's highly likely that the name doesn't exist, so let the JS engine
// check the prototype chain and throw if that doesn't have the property
// either.
aFound = false;
return;
}
}
int32_t type;
aRv = mStatement->GetTypeOfIndex(idx, &type);
if (aRv.Failed()) {
return;
}
switch (type) {
case mozIStorageValueArray::VALUE_TYPE_INTEGER:
case mozIStorageValueArray::VALUE_TYPE_FLOAT: {
double dval;
aRv = mStatement->GetDouble(idx, &dval);
if (aRv.Failed()) {
return;
}
aResult.set(::JS_NumberValue(dval));
break;
}
case mozIStorageValueArray::VALUE_TYPE_TEXT: {
uint32_t bytes;
const char16_t* sval = reinterpret_cast<const char16_t*>(
static_cast<mozIStorageStatement*>(mStatement)
->AsSharedWString(idx, &bytes));
JSString* str =
::JS_NewUCStringCopyN(aCx, sval, bytes / sizeof(char16_t));
if (!str) {
aRv.Throw(NS_ERROR_UNEXPECTED);
return;
}
aResult.setString(str);
break;
}
case mozIStorageValueArray::VALUE_TYPE_BLOB: {
uint32_t length;
const uint8_t* blob = static_cast<mozIStorageStatement*>(mStatement)
->AsSharedBlob(idx, &length);
JS::Rooted<JSObject*> obj(aCx, JS::NewArrayObject(aCx, length));
if (!obj) {
aRv.Throw(NS_ERROR_UNEXPECTED);
return;
}
aResult.setObject(*obj);
// Copy the blob over to the JS array.
for (uint32_t i = 0; i < length; i++) {
if (!::JS_DefineElement(aCx, obj, i, blob[i], JSPROP_ENUMERATE)) {
aRv.Throw(NS_ERROR_UNEXPECTED);
return;
}
}
break;
}
case mozIStorageValueArray::VALUE_TYPE_NULL:
aResult.setNull();
break;
default:
NS_ERROR("unknown column type returned, what's going on?");
break;
}
aFound = true;
}
void StatementRow::GetSupportedNames(nsTArray<nsString>& aNames) {
if (!mStatement) {
return;
}
uint32_t columnCount;
nsresult rv = mStatement->GetColumnCount(&columnCount);
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
for (uint32_t i = 0; i < columnCount; i++) {
nsAutoCString name;
nsresult rv = mStatement->GetColumnName(i, name);
if (NS_WARN_IF(NS_FAILED(rv))) {
return;
}
aNames.AppendElement(NS_ConvertUTF8toUTF16(name));
}
}
} // namespace storage
} // namespace mozilla
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