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#pragma once
#include <mbgl/tile/tile_source.hpp>
#include <mbgl/tile/tile_id.hpp>
namespace mbgl {
class FileSource;
class RasterTileSource : public TileSource {
public:
RasterTileSource(const OverscaledTileID&,
float pixelRatio,
const std::string& urlTemplate,
FileSource&);
virtual ~RasterTileSource() = default;
using Callback = std::function<void(std::exception_ptr,
std::shared_ptr<const std::string>,
optional<Timestamp> modified,
optional<Timestamp> expires)>;
/*
* Monitor the tile held by this object for changes. When the tile is loaded for the first time,
* or updates, the callback is executed. If an error occurs, the first parameter will be set.
* Otherwise it will be null. If there is no data for the requested tile, the second parameter
* will be null.
*
* To cease monitoring, release the returned Request.
*/
std::unique_ptr<AsyncRequest> monitorTile(const Callback&);
private:
OverscaledTileID tileID;
float pixelRatio;
std::string urlTemplate;
FileSource& fileSource;
};
} // namespace mbgl
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