57 lines
1.4 KiB
Solidity
57 lines
1.4 KiB
Solidity
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/*
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IERC1155Holder
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SPDX-License-Identifier: CC0-1.0
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*/
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import "@openzeppelin/contracts/interfaces/IERC165.sol";
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pragma solidity ^0.8.0;
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/**
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* @notice the ERC1155 holder standard provides a common interface to query
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* token balance information
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*/
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interface IERC1155Holder is IERC165 {
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/**
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* @notice emitted when the token is transferred to the contract
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* @param owner functional token owner
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* @param tokenAddress held token address
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* @param tokenId held token ID
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* @param tokenAmount held token amount
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*/
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event Hold(
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address indexed owner,
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address indexed tokenAddress,
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uint256 indexed tokenId,
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uint256 tokenAmount
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);
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/**
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* @notice emitted when the token is released back to the user
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* @param owner functional token owner
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* @param tokenAddress held token address
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* @param tokenId held token ID
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* @param tokenAmount held token amount
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*/
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event Release(
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address indexed owner,
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address indexed tokenAddress,
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uint256 indexed tokenId,
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uint256 tokenAmount
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);
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/**
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* @notice get the held balance of the token owner
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* @param tokenAddress held token address
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* @param owner functional token owner
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* @param tokenId held token ID
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* @return held token balance
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*/
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function heldBalanceOf(
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address tokenAddress,
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address owner,
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uint256 tokenId
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) external view returns (uint256);
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}
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