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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.
#ifndef CHROME_BROWSER_NEARBY_SHARING_CONTACTS_NEARBY_SHARE_CONTACT_DOWNLOADER_H_
#define CHROME_BROWSER_NEARBY_SHARING_CONTACTS_NEARBY_SHARE_CONTACT_DOWNLOADER_H_
#include <string>
#include <vector>
#include "base/functional/callback.h"
#include "third_party/nearby/sharing/proto/rpc_resources.pb.h"
// Downloads the user's contact list from the server. NOTE: An instance should
// only be used once. All necessary parameters are passed to the constructor,
// and the download begins when Run() is called.
class NearbyShareContactDownloader {
public:
using SuccessCallback = base::OnceCallback<void(
std::vector<nearby::sharing::proto::ContactRecord> contacts,
uint32_t num_unreachable_contacts_filtered_out)>;
using FailureCallback = base::OnceClosure;
// |device_id|: The ID used by the Nearby server to differentiate multiple
// devices from the same account.
// |success_callback|: Invoked if the full contact list is successfully
// downloaded.
// |failure_callback|: Invoked if the contact list download fails.
NearbyShareContactDownloader(const std::string& device_id,
SuccessCallback success_callback,
FailureCallback failure_callback);
virtual ~NearbyShareContactDownloader();
// Starts the contact list download.
void Run();
protected:
const std::string& device_id() const { return device_id_; }
virtual void OnRun() = 0;
// Invokes the success callback with the input parameters.
void Succeed(std::vector<nearby::sharing::proto::ContactRecord> contacts,
uint32_t num_unreachable_contacts_filtered_out);
// Invokes the failure callback.
void Fail();
private:
bool was_run_ = false;
const std::string device_id_;
SuccessCallback success_callback_;
FailureCallback failure_callback_;
};
#endif // CHROME_BROWSER_NEARBY_SHARING_CONTACTS_NEARBY_SHARE_CONTACT_DOWNLOADER_H_
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