зеркало из https://github.com/mozilla/gecko-dev.git
143 строки
4.5 KiB
C++
143 строки
4.5 KiB
C++
/* -*- 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 "nsIXPConnect.h"
|
|
#include "mozStorageAsyncStatement.h"
|
|
#include "mozStorageService.h"
|
|
|
|
#include "nsMemory.h"
|
|
#include "nsString.h"
|
|
#include "nsServiceManagerUtils.h"
|
|
|
|
#include "mozStorageAsyncStatementJSHelper.h"
|
|
|
|
#include "mozStorageAsyncStatementParams.h"
|
|
|
|
#include "jsapi.h"
|
|
|
|
#include "xpc_make_class.h"
|
|
|
|
namespace mozilla {
|
|
namespace storage {
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//// AsyncStatementJSHelper
|
|
|
|
nsresult AsyncStatementJSHelper::getParams(AsyncStatement* aStatement,
|
|
JSContext* aCtx, JSObject* aScopeObj,
|
|
JS::Value* _params) {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
|
|
#ifdef DEBUG
|
|
int32_t state;
|
|
(void)aStatement->GetState(&state);
|
|
NS_ASSERTION(state == mozIStorageAsyncStatement::MOZ_STORAGE_STATEMENT_READY,
|
|
"Invalid state to get the params object - all calls will fail!");
|
|
#endif
|
|
|
|
JS::RootedObject scope(aCtx, aScopeObj);
|
|
|
|
if (!aStatement->mStatementParamsHolder) {
|
|
dom::GlobalObject global(aCtx, scope);
|
|
if (global.Failed()) {
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
nsCOMPtr<nsPIDOMWindowInner> window =
|
|
do_QueryInterface(global.GetAsSupports());
|
|
|
|
RefPtr<AsyncStatementParams> params(
|
|
new AsyncStatementParams(window, aStatement));
|
|
NS_ENSURE_TRUE(params, NS_ERROR_OUT_OF_MEMORY);
|
|
|
|
RefPtr<AsyncStatementParamsHolder> paramsHolder =
|
|
new AsyncStatementParamsHolder(params);
|
|
NS_ENSURE_TRUE(paramsHolder, NS_ERROR_OUT_OF_MEMORY);
|
|
|
|
aStatement->mStatementParamsHolder =
|
|
new nsMainThreadPtrHolder<AsyncStatementParamsHolder>(
|
|
"Statement::mStatementParamsHolder", paramsHolder);
|
|
}
|
|
|
|
RefPtr<AsyncStatementParams> params(
|
|
aStatement->mStatementParamsHolder->Get());
|
|
JSObject* obj = params->WrapObject(aCtx, nullptr);
|
|
if (!obj) {
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
_params->setObject(*obj);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP_(MozExternalRefCountType) AsyncStatementJSHelper::AddRef() {
|
|
return 2;
|
|
}
|
|
NS_IMETHODIMP_(MozExternalRefCountType) AsyncStatementJSHelper::Release() {
|
|
return 1;
|
|
}
|
|
NS_INTERFACE_MAP_BEGIN(AsyncStatementJSHelper)
|
|
NS_INTERFACE_MAP_ENTRY(nsIXPCScriptable)
|
|
NS_INTERFACE_MAP_ENTRY(nsISupports)
|
|
NS_INTERFACE_MAP_END
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//// nsIXPCScriptable
|
|
|
|
#define XPC_MAP_CLASSNAME AsyncStatementJSHelper
|
|
#define XPC_MAP_QUOTED_CLASSNAME "AsyncStatementJSHelper"
|
|
#define XPC_MAP_FLAGS \
|
|
(XPC_SCRIPTABLE_WANT_RESOLVE | XPC_SCRIPTABLE_ALLOW_PROP_MODS_DURING_RESOLVE)
|
|
#include "xpc_map_end.h"
|
|
|
|
NS_IMETHODIMP
|
|
AsyncStatementJSHelper::Resolve(nsIXPConnectWrappedNative* aWrapper,
|
|
JSContext* aCtx, JSObject* aScopeObj, jsid aId,
|
|
bool* resolvedp, bool* _retval) {
|
|
if (!JSID_IS_STRING(aId)) return NS_OK;
|
|
|
|
// Cast to async via mozI* since direct from nsISupports is ambiguous.
|
|
JS::RootedObject scope(aCtx, aScopeObj);
|
|
JS::RootedId id(aCtx, aId);
|
|
mozIStorageAsyncStatement* iAsyncStmt =
|
|
static_cast<mozIStorageAsyncStatement*>(aWrapper->Native());
|
|
AsyncStatement* stmt = static_cast<AsyncStatement*>(iAsyncStmt);
|
|
|
|
#ifdef DEBUG
|
|
{
|
|
nsISupports* supp = aWrapper->Native();
|
|
nsCOMPtr<mozIStorageAsyncStatement> isStatement(do_QueryInterface(supp));
|
|
NS_ASSERTION(isStatement, "How is this not an async statement?!");
|
|
}
|
|
#endif
|
|
|
|
if (::JS_LinearStringEqualsLiteral(JSID_TO_LINEAR_STRING(id), "params")) {
|
|
JS::RootedValue val(aCtx);
|
|
nsresult rv = getParams(stmt, aCtx, scope, val.address());
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
*_retval = ::JS_DefinePropertyById(aCtx, scope, id, val, JSPROP_RESOLVING);
|
|
*resolvedp = true;
|
|
return NS_OK;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//// AsyncStatementParamsHolder
|
|
|
|
NS_IMPL_ISUPPORTS0(AsyncStatementParamsHolder);
|
|
|
|
AsyncStatementParamsHolder::~AsyncStatementParamsHolder() {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
// We are considered dead at this point, so any wrappers for row or params
|
|
// need to lose their reference to the statement.
|
|
mParams->mStatement = nullptr;
|
|
}
|
|
|
|
} // namespace storage
|
|
} // namespace mozilla
|