forked from DecentralizedClimateFoundation/DCIPs
73 lines
3.6 KiB
Solidity
73 lines
3.6 KiB
Solidity
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// SPDX-License-Identifier: CC0-1.0
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pragma solidity ^0.8.16;
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import {IERC165} from "@openzeppelin/contracts/utils/introspection/IERC165.sol";
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import {IERC721BinderErrors} from "./IERC721BinderErrors.sol";
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/// @dev Note: the ERC-165 identifier for this interface is 0x2ac2d2bc.
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interface IERC721Binder is IERC165, IERC721BinderErrors {
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/// @notice Handles the binding of an IERC721Bindable-compliant NFT.
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/// @dev An IERC721Bindable-compliant smart contract MUST call this function
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/// at the end of a `bind` after delegating ownership to the asset owner.
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/// The function MUST revert if `to` is not the asset owner of `bindId` or
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/// if asset `bindId` is not a valid asset. The function MUST revert if it
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/// rejects the bind. If accepting the bind, the function MUST return
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/// `bytes4(keccak256("onERC721Bind(address,address,address,uint256,uint256,bytes)"))`
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/// Caller MUST revert the transaction if the above value is not returned.
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/// Note: The contract address of the binding NFT is `msg.sender`.
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/// @param operator The address responsible for initiating the bind.
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/// @param from The address which owns the unbound NFT.
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/// @param to The address which owns the asset being bound to.
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/// @param tokenId The identifier of the NFT being bound.
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/// @param bindId The identifier of the asset being bound to.
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/// @param data Additional data sent along with no specified format.
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/// @return `bytes4(keccak256("onERC721Bind(address,address,address,uint256,uint256,bytes)"))`
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function onERC721Bind(
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address operator,
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address from,
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address to,
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uint256 tokenId,
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uint256 bindId,
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bytes calldata data
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) external returns (bytes4);
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/// @notice Handles the unbinding of an IERC721Bindable-compliant NFT.
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/// @dev An IERC721Bindable-compliant smart contract MUST call this function
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/// at the end of an `unbind` after revoking delegated asset ownership.
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/// The function MUST revert if `from` is not the asset owner of `bindId`
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/// or if `bindId` is not a valid asset. The function MUST revert if it
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/// rejects the unbind. If accepting the unbind, the function MUST return
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/// `bytes4(keccak256("onERC721Unbind(address,address,address,uint256,uint256,bytes)"))`
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/// Caller MUST revert the transaction if the above value is not returned.
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/// Note: The contract address of the unbinding NFT is `msg.sender`.
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/// @param from The address which owns the asset the NFT is bound to.
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/// @param to The address which will own the NFT once unbound.
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/// @param tokenId The identifier of the NFT being unbound.
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/// @param bindId The identifier of the asset being unbound from.
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/// @param data Additional data with no specified format.
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/// @return `bytes4(keccak256("onERC721Unbind(address,address,address,uint256,uint256,bytes)"))`
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function onERC721Unbind(
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address operator,
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address from,
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address to,
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uint256 tokenId,
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uint256 bindId,
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bytes calldata data
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) external returns (bytes4);
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/// @notice Gets the owner address of the asset represented by id `bindId`.
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/// @dev Queries for assets assigned to the zero address MUST throw.
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/// @param bindId The identifier of the asset whose owner is being queried.
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/// @return The address of the owner of the asset.
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function ownerOf(uint256 bindId) external view returns (address);
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/// @notice Checks if an operator can act on behalf of an asset owner.
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/// @param owner The address that owns an asset.
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/// @param operator The address that acts on behalf of owner `owner`.
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/// @return True if `operator` can act on behalf of `owner`, else False.
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function isApprovedForAll(address owner, address operator) external view returns (bool);
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}
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