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| 1 | +// SPDX-License-Identifier: Apache-2.0 |
| 2 | +pragma solidity ^0.8.20; |
| 3 | + |
| 4 | +import {ModularExtension} from "../../../ModularExtension.sol"; |
| 5 | +import {Role} from "../../../Role.sol"; |
| 6 | +import {BeforeTransferCallbackERC721} from "../../../callback/BeforeTransferCallbackERC721.sol"; |
| 7 | +import {IBridgeAndCall} from "@lxly-bridge-and-call/IBridgeAndCall.sol"; |
| 8 | + |
| 9 | +library BridgeAndCallStorage { |
| 10 | + /// @custom:storage-location erc7201:token.bridgeAndCall |
| 11 | + bytes32 public constant BRIDGE_AND_CALL_STORAGE_POSITION = |
| 12 | + keccak256(abi.encode(uint256(keccak256("token.bridgeAndCall")) - 1)) & |
| 13 | + ~bytes32(uint256(0xff)); |
| 14 | + |
| 15 | + struct Data { |
| 16 | + address bridgeExtension; |
| 17 | + } |
| 18 | + |
| 19 | + function data() internal pure returns (Data storage data_) { |
| 20 | + bytes32 position = BRIDGE_AND_CALL_STORAGE_POSITION; |
| 21 | + assembly { |
| 22 | + data_.slot := position |
| 23 | + } |
| 24 | + } |
| 25 | +} |
| 26 | + |
| 27 | +contract BridgeAndCallERC721 is ModularExtension, BeforeTransferCallbackERC721 { |
| 28 | + /*////////////////////////////////////////////////////////////// |
| 29 | + ERRORS |
| 30 | + //////////////////////////////////////////////////////////////*/ |
| 31 | + |
| 32 | + /// @notice Emitted on attempt to transfer a token when the bridge extension is not set. |
| 33 | + error bridgeExtensionNotSet(); |
| 34 | + |
| 35 | + /*////////////////////////////////////////////////////////////// |
| 36 | + EXTENSION CONFIG |
| 37 | + //////////////////////////////////////////////////////////////*/ |
| 38 | + |
| 39 | + /// @notice Returns all implemented callback and extension functions. |
| 40 | + function getExtensionConfig() |
| 41 | + external |
| 42 | + pure |
| 43 | + override |
| 44 | + returns (ExtensionConfig memory config) |
| 45 | + { |
| 46 | + config.fallbackFunctions = new FallbackFunction[](4); |
| 47 | + |
| 48 | + config.fallbackFunctions[0] = FallbackFunction({ |
| 49 | + selector: this.getBridgeExtension.selector, |
| 50 | + permissionBits: 0 |
| 51 | + }); |
| 52 | + config.fallbackFunctions[1] = FallbackFunction({ |
| 53 | + selector: this.setBridgeExtension.selector, |
| 54 | + permissionBits: Role._MANAGER_ROLE |
| 55 | + }); |
| 56 | + config.fallbackFunctions[2] = FallbackFunction({ |
| 57 | + selector: this.bridgeAndCall.selector, |
| 58 | + permissionBits: 0 |
| 59 | + }); |
| 60 | + |
| 61 | + config.requiredInterfaces = new bytes4[](1); |
| 62 | + config.requiredInterfaces[0] = 0x80ac58cd; // ERC721. |
| 63 | + |
| 64 | + config.registerInstallationCallback = true; |
| 65 | + } |
| 66 | + |
| 67 | + /// @dev Called by a Core into an Extension during the installation of the Extension. |
| 68 | + function onInstall(bytes calldata data) external { |
| 69 | + address bridgeExtension = abi.decode(data, (address)); |
| 70 | + _bridgeAndCallStorage().bridgeExtension = bridgeExtension; |
| 71 | + } |
| 72 | + |
| 73 | + /// @dev Called by a Core into an Extension during the uninstallation of the Extension. |
| 74 | + function onUninstall(bytes calldata data) external {} |
| 75 | + |
| 76 | + /*////////////////////////////////////////////////////////////// |
| 77 | + FALLBACK FUNCTIONS |
| 78 | + //////////////////////////////////////////////////////////////*/ |
| 79 | + |
| 80 | + /// @notice Returns whether transfers is enabled for the token. |
| 81 | + function getBridgeExtension() external view returns (address) { |
| 82 | + return _bridgeAndCallStorage().bridgeExtension; |
| 83 | + } |
| 84 | + |
| 85 | + /// @notice Set transferability for a token. |
| 86 | + function setBridgeExtension(address enableTransfer) external { |
| 87 | + _bridgeAndCallStorage().bridgeExtension = enableTransfer; |
| 88 | + } |
| 89 | + |
| 90 | + /// @notice Set transferability for a token. |
| 91 | + function bridgeAndCall( |
| 92 | + uint256 amount, |
| 93 | + uint32 destinationNetwork, |
| 94 | + address callAddress, |
| 95 | + address fallbackAddress, |
| 96 | + bytes calldata callData, |
| 97 | + bool forceUpdateGlobalExitRoot |
| 98 | + ) external { |
| 99 | + address bridgeExtension = _bridgeAndCallStorage().bridgeExtension; |
| 100 | + if (bridgeExtension == address(0)) { |
| 101 | + revert bridgeExtensionNotSet(); |
| 102 | + } |
| 103 | + |
| 104 | + IBridgeAndCall(bridgeExtension).bridgeAndCall( |
| 105 | + address(this), |
| 106 | + amount, |
| 107 | + destinationNetwork, |
| 108 | + callAddress, |
| 109 | + fallbackAddress, |
| 110 | + callData, |
| 111 | + forceUpdateGlobalExitRoot |
| 112 | + ); |
| 113 | + } |
| 114 | + |
| 115 | + /*////////////////////////////////////////////////////////////// |
| 116 | + INTERNAL FUNCTIONS |
| 117 | + //////////////////////////////////////////////////////////////*/ |
| 118 | + |
| 119 | + function _bridgeAndCallStorage() |
| 120 | + internal |
| 121 | + pure |
| 122 | + returns (BridgeAndCallStorage.Data storage) |
| 123 | + { |
| 124 | + return BridgeAndCallStorage.data(); |
| 125 | + } |
| 126 | +} |
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