add nft event
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owen05
282
contracts/external/ERC1155/InitializableERC1155.sol
vendored
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282
contracts/external/ERC1155/InitializableERC1155.sol
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/*
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Copyright 2020 DODO ZOO.
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SPDX-License-Identifier: Apache-2.0
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*/
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pragma solidity 0.6.9;
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import {IERC1155} from "../../intf/IERC1155.sol";
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import {IERC1155Receiver} from "../../intf/IERC1155Receiver.sol";
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import {IERC1155MetadataURI} from "../../intf/IERC1155MetadataURI.sol";
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import {IERC165} from "../../intf/IERC165.sol";
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import {Strings} from "../../lib/Strings.sol";
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import {Address} from "../../lib/Address.sol";
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contract InitializableERC1155 is IERC165, IERC1155, IERC1155MetadataURI {
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using Address for address;
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mapping (uint256 => mapping(address => uint256)) private _balances;
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mapping (address => mapping(address => bool)) private _operatorApprovals;
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string private _uri;
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function init(
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uint256 amount,
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string memory baseUrI
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) public {
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_setURI(baseUrI);
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_mint(msg.sender, 0, amount ,"");
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}
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function supportsInterface(bytes4 interfaceId) public view override returns (bool) {
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return interfaceId == type(IERC1155).interfaceId
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|| interfaceId == type(IERC1155MetadataURI).interfaceId;
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}
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function uri(uint256) public view virtual override returns (string memory) {
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return _uri;
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}
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function balanceOf(address account, uint256 id) public view virtual override returns (uint256) {
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require(account != address(0), "ERC1155: balance query for the zero address");
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return _balances[id][account];
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}
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function balanceOfBatch(
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address[] memory accounts,
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uint256[] memory ids
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)
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public
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view
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virtual
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override
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returns (uint256[] memory)
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{
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require(accounts.length == ids.length, "ERC1155: accounts and ids length mismatch");
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uint256[] memory batchBalances = new uint256[](accounts.length);
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for (uint256 i = 0; i < accounts.length; ++i) {
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batchBalances[i] = balanceOf(accounts[i], ids[i]);
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}
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return batchBalances;
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}
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function setApprovalForAll(address operator, bool approved) public virtual override {
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require(msg.sender != operator, "ERC1155: setting approval status for self");
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_operatorApprovals[msg.sender][operator] = approved;
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emit ApprovalForAll(msg.sender, operator, approved);
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}
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function isApprovedForAll(address account, address operator) public view virtual override returns (bool) {
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return _operatorApprovals[account][operator];
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}
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function safeTransferFrom(
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address from,
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address to,
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uint256 id,
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uint256 amount,
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bytes memory data
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)
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public
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virtual
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override
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{
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require(to != address(0), "ERC1155: transfer to the zero address");
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require(
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from == msg.sender || isApprovedForAll(from, msg.sender),
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"ERC1155: caller is not owner nor approved"
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);
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address operator = msg.sender;
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_beforeTokenTransfer(operator, from, to, _asSingletonArray(id), _asSingletonArray(amount), data);
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uint256 fromBalance = _balances[id][from];
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require(fromBalance >= amount, "ERC1155: insufficient balance for transfer");
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_balances[id][from] = fromBalance - amount;
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_balances[id][to] += amount;
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emit TransferSingle(operator, from, to, id, amount);
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_doSafeTransferAcceptanceCheck(operator, from, to, id, amount, data);
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}
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function safeBatchTransferFrom(
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address from,
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address to,
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uint256[] memory ids,
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uint256[] memory amounts,
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bytes memory data
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)
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public
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virtual
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override
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{
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require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch");
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require(to != address(0), "ERC1155: transfer to the zero address");
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require(
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from == msg.sender || isApprovedForAll(from, msg.sender),
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"ERC1155: transfer caller is not owner nor approved"
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);
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address operator = msg.sender;
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_beforeTokenTransfer(operator, from, to, ids, amounts, data);
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for (uint256 i = 0; i < ids.length; ++i) {
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uint256 id = ids[i];
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uint256 amount = amounts[i];
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uint256 fromBalance = _balances[id][from];
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require(fromBalance >= amount, "ERC1155: insufficient balance for transfer");
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_balances[id][from] = fromBalance - amount;
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_balances[id][to] += amount;
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}
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emit TransferBatch(operator, from, to, ids, amounts);
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_doSafeBatchTransferAcceptanceCheck(operator, from, to, ids, amounts, data);
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}
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function _setURI(string memory newuri) internal virtual {
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_uri = newuri;
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}
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function _mint(address account, uint256 id, uint256 amount, bytes memory data) internal virtual {
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require(account != address(0), "ERC1155: mint to the zero address");
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address operator = msg.sender;
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_beforeTokenTransfer(operator, address(0), account, _asSingletonArray(id), _asSingletonArray(amount), data);
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_balances[id][account] += amount;
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emit TransferSingle(operator, address(0), account, id, amount);
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_doSafeTransferAcceptanceCheck(operator, address(0), account, id, amount, data);
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}
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function _mintBatch(address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data) internal virtual {
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require(to != address(0), "ERC1155: mint to the zero address");
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require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch");
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address operator = msg.sender;
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_beforeTokenTransfer(operator, address(0), to, ids, amounts, data);
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for (uint i = 0; i < ids.length; i++) {
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_balances[ids[i]][to] += amounts[i];
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}
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emit TransferBatch(operator, address(0), to, ids, amounts);
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_doSafeBatchTransferAcceptanceCheck(operator, address(0), to, ids, amounts, data);
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}
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function _burn(address account, uint256 id, uint256 amount) internal virtual {
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require(account != address(0), "ERC1155: burn from the zero address");
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address operator = msg.sender;
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_beforeTokenTransfer(operator, account, address(0), _asSingletonArray(id), _asSingletonArray(amount), "");
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uint256 accountBalance = _balances[id][account];
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require(accountBalance >= amount, "ERC1155: burn amount exceeds balance");
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_balances[id][account] = accountBalance - amount;
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emit TransferSingle(operator, account, address(0), id, amount);
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}
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function _burnBatch(address account, uint256[] memory ids, uint256[] memory amounts) internal virtual {
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require(account != address(0), "ERC1155: burn from the zero address");
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require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch");
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address operator = msg.sender;
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_beforeTokenTransfer(operator, account, address(0), ids, amounts, "");
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for (uint i = 0; i < ids.length; i++) {
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uint256 id = ids[i];
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uint256 amount = amounts[i];
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uint256 accountBalance = _balances[id][account];
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require(accountBalance >= amount, "ERC1155: burn amount exceeds balance");
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_balances[id][account] = accountBalance - amount;
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}
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emit TransferBatch(operator, account, address(0), ids, amounts);
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}
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function _beforeTokenTransfer(
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address operator,
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address from,
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address to,
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uint256[] memory ids,
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uint256[] memory amounts,
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bytes memory data
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)
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internal
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virtual
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{ }
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function _doSafeTransferAcceptanceCheck(
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address operator,
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address from,
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address to,
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uint256 id,
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uint256 amount,
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bytes memory data
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)
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private
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{
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if (to.isContract()) {
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try IERC1155Receiver(to).onERC1155Received(operator, from, id, amount, data) returns (bytes4 response) {
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if (response != IERC1155Receiver(to).onERC1155Received.selector) {
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revert("ERC1155: ERC1155Receiver rejected tokens");
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}
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} catch Error(string memory reason) {
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revert(reason);
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} catch {
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revert("ERC1155: transfer to non ERC1155Receiver implementer");
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}
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}
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}
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function _doSafeBatchTransferAcceptanceCheck(
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address operator,
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address from,
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address to,
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uint256[] memory ids,
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uint256[] memory amounts,
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bytes memory data
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)
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private
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{
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if (to.isContract()) {
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try IERC1155Receiver(to).onERC1155BatchReceived(operator, from, ids, amounts, data) returns (bytes4 response) {
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if (response != IERC1155Receiver(to).onERC1155BatchReceived.selector) {
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revert("ERC1155: ERC1155Receiver rejected tokens");
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}
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} catch Error(string memory reason) {
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revert(reason);
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} catch {
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revert("ERC1155: transfer to non ERC1155Receiver implementer");
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}
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}
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}
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function _asSingletonArray(uint256 element) private pure returns (uint256[] memory) {
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uint256[] memory array = new uint256[](1);
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array[0] = element;
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return array;
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}
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}
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