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setFailedSrc(resolvedSrc)} /> ) : knownIcon && !fallback ? ( knownIcon ) : ( {fallback ?? getFallbackText({ chainId, name: displayName, symbol: displaySymbol, maxChars: fallbackMaxChars[size], })} )} ); if (!showTooltip || tooltip == null) return logo; return ( {tooltip} ); } 55:T2624,import { getAddress } from "viem"; import type { ReactNode } from "react"; /** * Crypto icon adapter. * * This file is the single seam onchain-ui components use to resolve token and * network icons — the crypto equivalent of shadcn's icon library setting. * Swap the implementations to point at your icon package, token list, CDN, or * indexer; the component contract stays the same. * * Both functions may return: * - a string, treated as an image URL * - a ReactNode, rendered directly in place of the image * - null, meaning "unknown" — components fall back to readable initials * * Explicit props (`src`, `fallback`) always win over this adapter. */ export type CryptoIcon = string | ReactNode | null; export interface TokenIconQuery { /** EVM chain id the token lives on */ chainId?: number | null; /** Token contract address */ address?: string | null; /** Token symbol. Unused by the default adapter: symbols are not canonical */ symbol?: string | null; /** Whether this is the chain's native currency rather than an ERC-20 */ isNative?: boolean; } // Chain folder names in the Trust Wallet assets repo. const trustWalletChainFolders: Record = { 1: "ethereum", 10: "optimism", 137: "polygon", 8453: "base", 42161: "arbitrum", }; /** * Resolves a token icon from the community-maintained Trust Wallet assets * repo by chain id and contract address. Coverage is good for established * tokens; misses degrade to the component's initials fallback. * * This default is fine for demos and prototypes. In production, prefer your * own token metadata (`src`) or point this function at your token list or * CDN. */ export function getTokenIcon(query: TokenIconQuery): CryptoIcon { const { chainId, address, isNative, symbol } = query; if (isNative && symbol?.toUpperCase() === "ETH") { return ; } if (chainId == null || !address) return null; const chainFolder = trustWalletChainFolders[chainId]; if (!chainFolder) return null; try { // The repo stores assets under EIP-55 checksummed addresses. const checksummed = getAddress(address); return `https://raw.githubusercontent.com/trustwallet/assets/master/blockchains/${chainFolder}/assets/${checksummed}/logo.png`; } catch { return null; } } function EthereumMark({ className }: { className?: string }) { return ( ); } function BaseMark({ className }: { className?: string }) { return ( ); } function OptimismMark({ className }: { className?: string }) { return ( ); } function ArbitrumMark({ className }: { className?: string }) { return ( ); } function PolygonMark({ className }: { className?: string }) { return ( ); } /** * Resolves a network icon by chain id. The default adapter ships crisp inline * marks for common chains so `` works offline * with zero configuration. */ export function getNetworkIcon(chainId?: number | null): CryptoIcon { if (chainId === 1) return ; if (chainId === 10) return ; if (chainId === 137) return ; if (chainId === 8453) return ; if (chainId === 42161) return ; return null; } 56:T1119,import { arbitrum, base, mainnet, optimism, polygon } from "viem/chains"; import type { AssetGatewayUrls, Chain, PublicClient } from "viem"; /** The small client surface identity resolution actually consumes. */ export type OnchainReadClient = Pick< PublicClient, "getEnsAddress" | "getEnsAvatar" | "getEnsName" | "readContract" >; /** * The single place onchain-ui components look for app-wide settings. * * This file is yours: edit it once and every component follows. There is no * provider and no context — components import these functions directly, so * they work the same in a server component, a test, or a non-React consumer. * * Per-instance overrides always win. `` and * `` beat anything configured here. */ export interface OnchainUIConfig { /** * Chains your app supports. Supplies block explorer URLs and display names * for networks that have no built-in entry below. * * Using wagmi? Point this at the config you already wrote: * * ```ts * import { wagmiConfig } from "@/lib/onchain/wagmi"; * chains: wagmiConfig.chains, * ``` */ chains: readonly Chain[]; /** * Returns a viem client for reads that are not tied to a rendered component * — currently ENS and Basename resolution. Leave undefined to use the public * endpoints below. * * Using wagmi? Share its transports instead of configuring RPC twice: * * ```ts * import { getPublicClient } from "@wagmi/core"; * import { wagmiConfig } from "@/lib/onchain/wagmi"; * getClient: (chainId) => getPublicClient(wagmiConfig, { chainId }), * ``` */ getClient?: (chainId: number) => OnchainReadClient | undefined; /** * Public gateways used to turn IPFS and Arweave avatar records into URLs. * Replace these with your own gateway in production when reliability or * rate limits matter. */ avatarGatewayUrls?: AssetGatewayUrls; } export const onchainConfig: OnchainUIConfig = { chains: [mainnet, base, arbitrum, optimism, polygon], avatarGatewayUrls: { ipfs: "https://gateway.pinata.cloud", arweave: "https://arweave.net", }, }; /** * Curated network names and symbols. * * These are deliberately not derived from the viem chain: `chain.name` gives * "OP Mainnet" where a badge wants "Optimism", and `nativeCurrency.symbol` * gives "ETH" for Base, Optimism, and Arbitrum alike, which is useless as a * network mark. Chains absent here fall back to the configured chain's name. */ const knownNetworks: Partial< Record > = { 1: { name: "Ethereum", symbol: "ETH" }, 10: { name: "Optimism", symbol: "OP" }, 137: { name: "Polygon", symbol: "POL" }, 8453: { name: "Base", symbol: "BASE" }, 42161: { name: "Arbitrum", symbol: "ARB" }, }; function findChain(chainId?: number | null) { if (chainId == null) return null; return onchainConfig.chains.find((chain) => chain.id === chainId) ?? null; } export interface NetworkMeta { name: string | null; symbol: string | null; } /** Display name and symbol for a chain, or nulls when it is unrecognised. */ export function getNetworkMeta(chainId?: number | null): NetworkMeta { if (chainId == null) return { name: null, symbol: null }; const known = knownNetworks[chainId]; if (known) return known; return { name: findChain(chainId)?.name ?? null, symbol: null }; } /** * Block explorer base URL for a chain, or null when we have none. * * Derived from the configured chains rather than a second hardcoded map — * viem's chain objects already carry `blockExplorers`. 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