components/send_tab_to_self/entry_point_display_reason.h

// Copyright 2022 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef COMPONENTS_SEND_TAB_TO_SELF_ENTRY_POINT_DISPLAY_REASON_H_
#define COMPONENTS_SEND_TAB_TO_SELF_ENTRY_POINT_DISPLAY_REASON_H_

#include "third_party/abseil-cpp/absl/types/optional.h"

class GURL;
class PrefService;

namespace syncer {
class SyncService;
}  // namespace syncer

namespace send_tab_to_self {

class SendTabToSelfSyncService;

enum class EntryPointDisplayReason {
  // The send-tab-to-self entry point should be shown because all the conditions
  // are met and the feature is ready to be used.
  kOfferFeature,
  // The user might be able to use send-tab-to-self if they sign in, so offer
  // that. "Might" because the list of target devices can't be known yet, it
  // could be empty (see below).
  kOfferSignIn,
  // All the conditions for send-tab-to-self are met, but there is no valid
  // target device. In that case the entry point should inform the user they
  // can enjoy the feature by signing in on other devices.
  kInformNoTargetDevice,
};

// |sync_service| and |send_tab_to_self_sync_service| can be null.
absl::optional<EntryPointDisplayReason> GetEntryPointDisplayReason(
    const GURL& url_to_share,
    syncer::SyncService* sync_service,
    SendTabToSelfSyncService* send_tab_to_self_sync_service,
    PrefService* pref_service);

}  // namespace send_tab_to_self

#endif  // COMPONENTS_SEND_TAB_TO_SELF_ENTRY_POINT_DISPLAY_REASON_H_