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// Copyright 2025 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_THEMES_THEME_LOCAL_DATA_BATCH_UPLOADER_H_
#define CHROME_BROWSER_THEMES_THEME_LOCAL_DATA_BATCH_UPLOADER_H_
#include "base/functional/callback_forward.h"
#include "components/sync/service/data_type_local_data_batch_uploader.h"
#include "components/sync/service/local_data_description.h"
namespace sync_pb {
class ThemeSpecifics;
} // namespace sync_pb
class ThemeLocalDataBatchUploaderDelegate {
public:
// Returns the saved local theme if it exists. This refers to the local theme
// that existed prior to receiving the remote theme from sync. The local theme
// is reapplied if sync stops. It is received as a ThemeSpecifics since that
// best encapsulates the different types of themes.
virtual std::optional<sync_pb::ThemeSpecifics> GetSavedLocalTheme() const = 0;
// Applies the saved local theme if it exists. This returns true iff a saved
// local theme existed.
virtual bool ApplySavedLocalThemeIfExistsAndClear() = 0;
};
class ThemeLocalDataBatchUploader
: public syncer::DataTypeLocalDataBatchUploader {
public:
// ID for the themes batch upload data item. There can only ever be at most
// one item.
static const char kThemesLocalDataItemModelId[];
explicit ThemeLocalDataBatchUploader(
ThemeLocalDataBatchUploaderDelegate* delegate);
// Retrieves information about the existing local data.
void GetLocalDataDescription(
base::OnceCallback<void(syncer::LocalDataDescription)> callback) override;
// Triggers the process of moving the data. The process is in fact async,
// but no notion of completion is exposed here.
void TriggerLocalDataMigration() override;
// Triggers the process of moving the data restricted to the data that matches
// the `syncer::LocalDataItemModel::DataId` in `items`. The process is in fact
// async, but no notion of completion is exposed here.
void TriggerLocalDataMigrationForItems(
std::vector<syncer::LocalDataItemModel::DataId> items) override;
private:
std::optional<sync_pb::ThemeSpecifics> GetNonDefaultSavedLocalTheme() const;
raw_ptr<ThemeLocalDataBatchUploaderDelegate> delegate_;
};
#endif // CHROME_BROWSER_THEMES_THEME_LOCAL_DATA_BATCH_UPLOADER_H_
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