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- // Copyright 2020 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_QUERY_TILES_INTERNAL_TILE_MANAGER_H_
- #define COMPONENTS_QUERY_TILES_INTERNAL_TILE_MANAGER_H_
- #include <memory>
- #include <string>
- #include <vector>
- #include "base/callback.h"
- #include "components/query_tiles/internal/store.h"
- #include "components/query_tiles/internal/tile_group.h"
- #include "components/query_tiles/internal/tile_types.h"
- #include "components/query_tiles/tile.h"
- #include "third_party/abseil-cpp/absl/types/optional.h"
- namespace query_tiles {
- // Manages the in-memory tile group and coordinates with storage layer.
- class TileManager {
- public:
- using TileStore = Store<TileGroup>;
- using TileGroupStatusCallback = base::OnceCallback<void(TileGroupStatus)>;
- using GetTilesCallback = base::OnceCallback<void(std::vector<Tile>)>;
- using TileCallback = base::OnceCallback<void(absl::optional<Tile>)>;
- // Creates the instance.
- static std::unique_ptr<TileManager> Create(
- std::unique_ptr<TileStore> tile_store,
- const std::string& accept_languages);
- // Initializes the query tile store, loading them into memory after
- // validating.
- virtual void Init(TileGroupStatusCallback callback) = 0;
- // Returns tiles to the caller in the given |locale|.
- virtual void GetTiles(bool shuffle_tiles, GetTilesCallback callback) = 0;
- // Returns the tile associated with |tile_id| to the caller.
- virtual void GetTile(const std::string& tile_id,
- bool shuffle_tiles,
- TileCallback callback) = 0;
- // Save the query tiles into database.
- virtual void SaveTiles(std::unique_ptr<TileGroup> tile_group,
- TileGroupStatusCallback callback) = 0;
- // Delete everything in db. Used for debugging in WebUI only.
- virtual TileGroupStatus PurgeDb() = 0;
- // Dump the group. Used for debugging in WebUI only.
- virtual TileGroup* GetTileGroup() = 0;
- // Called when a tile is clicked.
- virtual void OnTileClicked(const std::string& tile_id) = 0;
- // Called when the final query is formed. |parent_tile_id| is the parent
- // Id of the last tile, if it exists.
- virtual void OnQuerySelected(
- const absl::optional<std::string>& parent_tile_id,
- const std::u16string& query_text) = 0;
- TileManager();
- virtual ~TileManager() = default;
- TileManager(const TileManager& other) = delete;
- TileManager& operator=(const TileManager& other) = delete;
- // ------------------------Testing------------------------
- virtual void SetAcceptLanguagesForTesting(
- const std::string& accept_languages) = 0;
- };
- } // namespace query_tiles
- #endif // COMPONENTS_QUERY_TILES_INTERNAL_TILE_MANAGER_H_
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