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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/trusted_vault/trusted_vault_access_token_fetcher_impl.h"
#include <memory>
#include <utility>
#include "base/location.h"
#include "base/memory/ptr_util.h"
#include "base/task/bind_post_task.h"
#include "base/task/sequenced_task_runner.h"
#include "base/types/expected.h"
#include "components/trusted_vault/trusted_vault_access_token_fetcher.h"
#include "components/trusted_vault/trusted_vault_access_token_fetcher_frontend.h"
namespace trusted_vault {
namespace {
// Attempts to fetch access token and immediately run |callback| if |frontend|
// isn't valid. Must be used on the UI thread.
void FetchAccessTokenOnUIThread(
base::WeakPtr<TrustedVaultAccessTokenFetcherFrontend> frontend,
const CoreAccountId& account_id,
TrustedVaultAccessTokenFetcher::TokenCallback callback) {
if (!frontend) {
// This is likely to happen during the browser shutdown, leave request
// hanging.
return;
}
frontend->FetchAccessToken(account_id, std::move(callback));
}
} // namespace
TrustedVaultAccessTokenFetcherImpl::TrustedVaultAccessTokenFetcherImpl(
base::WeakPtr<TrustedVaultAccessTokenFetcherFrontend> frontend)
: frontend_(frontend) {
DCHECK(base::SequencedTaskRunner::HasCurrentDefault());
ui_thread_task_runner_ = base::SequencedTaskRunner::GetCurrentDefault();
}
TrustedVaultAccessTokenFetcherImpl::TrustedVaultAccessTokenFetcherImpl(
base::WeakPtr<TrustedVaultAccessTokenFetcherFrontend> frontend,
scoped_refptr<base::SequencedTaskRunner> ui_thread_task_runner)
: frontend_(frontend), ui_thread_task_runner_(ui_thread_task_runner) {}
TrustedVaultAccessTokenFetcherImpl::~TrustedVaultAccessTokenFetcherImpl() =
default;
void TrustedVaultAccessTokenFetcherImpl::FetchAccessToken(
const CoreAccountId& account_id,
TokenCallback callback) {
ui_thread_task_runner_->PostTask(
FROM_HERE,
base::BindOnce(FetchAccessTokenOnUIThread, frontend_, account_id,
base::BindPostTaskToCurrentDefault(std::move(callback))));
}
std::unique_ptr<TrustedVaultAccessTokenFetcher>
TrustedVaultAccessTokenFetcherImpl::Clone() {
return base::WrapUnique(new TrustedVaultAccessTokenFetcherImpl(
frontend_, ui_thread_task_runner_));
}
} // namespace trusted_vault
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