import { AdapterState, isInBrowser, WalletReadyState, WalletSignMessageError, WalletNotFoundError, WalletDisconnectedError, WalletConnectionError, WalletSignTransactionError, WalletSignTypedDataError, WalletSwitchChainError, WalletGetNetworkError, isInMobileBrowser, NetworkType, AddonAdapter, WalletError, TIP6963AnnounceProviderEventName, TIP6963RequestProviderEventName, } from '@tronweb3/tronwallet-abstract-adapter'; import type { Transaction, SignedTransaction, AdapterName, BaseAdapterConfig, Network, TypedData, TIP6963AnnounceProviderEvent, } from '@tronweb3/tronwallet-abstract-adapter'; import type { ReqestAccountsResponse, Tron, TronAccountsChangedCallback, TronChainChangedCallback, TronWeb, } from './types.js'; import { openTronLink, supportTron, waitTronwebReady } from './utils.js'; export interface TronLinkWallet { ready: boolean; tronWeb: TronWeb; request(config: Record): Promise; } export const chainIdNetworkMap: Record = { '0x2b6653dc': NetworkType.Mainnet, '0x94a9059e': NetworkType.Shasta, '0xcd8690dc': NetworkType.Nile, }; export async function getNetworkInfoByTronWeb(tronWeb: TronWeb) { const { blockID = '' } = await tronWeb.trx.getBlockByNumber(0); const chainId = `0x${blockID.slice(-8)}`; return { networkType: chainIdNetworkMap[chainId] || NetworkType.Unknown, chainId, fullNode: tronWeb.fullNode?.host || '', solidityNode: tronWeb.solidityNode?.host || '', eventServer: tronWeb.eventServer?.host || '', }; } declare global { interface Window { tronLink?: TronLinkWallet; tronWeb?: TronWeb & { ready?: boolean }; // @ts-ignore tron?: Tron; } } export interface TronLinkAdapterConfig extends BaseAdapterConfig { /** * Timeout in millisecond for checking if TronLink wallet exists. * Default is 5000ms */ checkTimeout?: number; /** * Set if open TronLink app using DeepLink. * Default is true. */ openAppWithDeeplink?: boolean; /** * @deprecated Please use `openAppWithDeeplink` */ openTronLinkAppOnMobile?: boolean; /** * The icon of your dapp. Used when open TronLink app in mobile device browsers. */ dappIcon?: string; /** * The name of your dapp. Used when open TronLink app in mobile device browsers. */ dappName?: string; } export const TronLinkAdapterName = 'TronLink' as AdapterName<'TronLink'>; const TRONLINK_RDNS = 'org.tronlink.www'; export class TronLinkAdapter extends AddonAdapter { name = TronLinkAdapterName; url = 'https://www.tronlink.org/'; icon = 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'; config: Required; private _readyState: WalletReadyState = isInBrowser() ? WalletReadyState.Loading : WalletReadyState.NotFound; private _state: AdapterState = isInBrowser() ? AdapterState.Loading : AdapterState.NotFound; private _connecting: boolean; private _wallet: TronLinkWallet | Tron | null; private _address: string | null; // https://github.com/tronprotocol/tips/blob/master/tip-1193.md private _supportNewTronProtocol = false; // record if first connect event has emitted or not constructor(config: TronLinkAdapterConfig = {}) { super(config); const { checkTimeout = 5 * 1000, dappIcon = '', dappName = '', openUrlWhenWalletNotFound = true, openTronLinkAppOnMobile = true, openAppWithDeeplink = true, } = config; if (typeof checkTimeout !== 'number') { throw new Error('[TronLinkAdapter] config.checkTimeout should be a number'); } this.config = { ...this.commonConfig, checkTimeout, openTronLinkAppOnMobile, openAppWithDeeplink, openUrlWhenWalletNotFound, dappIcon, dappName, }; this._connecting = false; this._wallet = null; this._address = null; if (!isInBrowser()) { this._readyState = WalletReadyState.NotFound; this.setState(AdapterState.NotFound); return; } if (!isInMobileBrowser()) { this._checkWallet().then(() => { if (this.connected) { this.emit('connect', this.address || ''); } }); } else if (supportTron() || (isInMobileBrowser() && (window.tronLink || window.tronWeb))) { this._readyState = WalletReadyState.Found; this._updateWallet().then(() => { if (this.connected) { this.emit('connect', this.address || ''); } }); } else { this._checkWallet().then(() => { if (this.connected) { this.emit('connect', this.address || ''); } }); } } get address() { return this._address; } get state() { return this._state; } get readyState() { return this._readyState; } get connecting() { return this._connecting; } /** * Get network information used by TronLink. * @returns {Network} Current network information. */ async network(): Promise { try { await this._checkWallet(); if (this.state !== AdapterState.Connected) throw new WalletDisconnectedError(); const tronWeb = this._wallet?.tronWeb || window.tronWeb; if (!tronWeb) throw new WalletDisconnectedError(); try { return await getNetworkInfoByTronWeb(tronWeb); } catch (e: any) { throw new WalletGetNetworkError(e?.message, e); } } catch (e: any) { this.emit('error', e); throw e; } } async connect(): Promise { try { if (!(await this._beforeConnect())) return; // lower version only support window.tronWeb, no window.tronLink if (!this._wallet) return; this._connecting = true; if (this._supportNewTronProtocol) { const wallet = this._wallet as Tron; try { const res = await wallet.request({ method: 'eth_requestAccounts' }); const address = res[0]; this.setAddress(address); this.setState(AdapterState.Connected); this._listenTronEvent(); if (!this._wallet.tronWeb) { await waitTronwebReady(this._wallet as Tron); } } catch (error: any) { let message = error?.message || error || 'Connect TronLink wallet failed.'; if (error.code === -32002) { message = 'The same DApp has already initiated a request to connect to TronLink wallet, and the pop-up window has not been closed.'; } if (error.code === 4001) { message = 'The user rejected connection.'; } throw new WalletConnectionError(message, error); } } else if (window.tronLink) { const wallet = this._wallet as TronLinkWallet; const res = await wallet.request({ method: 'tron_requestAccounts' }); if (!res) { // 1. wallet is locked // 2. tronlink is first installed and there is no wallet account throw new WalletConnectionError('TronLink wallet is locked or no wallet account is avaliable.'); } if (res.code === 4000) { throw new WalletConnectionError( 'The same DApp has already initiated a request to connect to TronLink wallet, and the pop-up window has not been closed.' ); } if (res.code === 4001) { throw new WalletConnectionError('The user rejected connection.'); } const address = wallet.tronWeb.defaultAddress?.base58 || ''; this.setAddress(address); this.setState(AdapterState.Connected); } else if (window.tronWeb) { const wallet = this._wallet as TronLinkWallet; const address = wallet.tronWeb.defaultAddress?.base58 || ''; this.setAddress(address); this.setState(AdapterState.Connected); } else { throw new WalletConnectionError('Cannot connect wallet.'); } this.connected && this.emit('connect', this.address || ''); } catch (error: any) { const err = error instanceof WalletError ? error : new WalletConnectionError(error?.message, error); this.emit('error', err); throw err; } finally { this._connecting = false; } } async disconnect(): Promise { if (this._supportNewTronProtocol) { this._stopListenTronEvent(); } if (this.state !== AdapterState.Connected) { return; } this.setAddress(null); this.setState(AdapterState.Disconnect); this.emit('disconnect'); } private async _checkAndSign( action: (wallet: Tron & { tronWeb: TronWeb }) => Promise, ErrorConstructor: typeof WalletSignTransactionError | typeof WalletSignMessageError ): Promise { try { const wallet = await this.checkAndGetWallet(); try { return await action(wallet); } catch (error: any) { if (error instanceof Error || (typeof error === 'object' && error.message)) { throw new ErrorConstructor(error.message, error); } else if (typeof error === 'string') { throw new ErrorConstructor(error, new Error(error)); } else { throw new ErrorConstructor('Unknown error', error); } } } catch (error: any) { this.emit('error', error); throw error; } } async signTransaction(transaction: Transaction): Promise { return this._checkAndSign((wallet) => wallet.tronWeb.trx.sign(transaction), WalletSignTransactionError); } /** * * @param transaction transaction to be signed * @param _, false to use tronWeb.trx.multiSign * @param permissionId permissionId for multiSign * @returns */ async multiSign(transaction: Transaction, options: { permissionId?: number } = {}): Promise { // multiSign is a transaction signing operation, so it uses WalletSignTransactionError return this._checkAndSign( (wallet) => wallet.tronWeb.trx.multiSign(transaction, undefined, options.permissionId), WalletSignTransactionError ); } async signMessage(message: string): Promise { return this._checkAndSign(async (wallet) => wallet.tronWeb.trx.signMessageV2(message), WalletSignMessageError); } protected async _signTypedData(typedData: TypedData): Promise { return this._checkAndSign( async (wallet) => wallet.tronWeb.trx._signTypedData(typedData.domain, typedData.types, typedData.message), WalletSignTypedDataError ); } /** * Switch to target chain. If current chain is the same as target chain, the call will success immediately. * Available chainIds: * - Mainnet: 0x2b6653dc * - Shasta: 0x94a9059e * - Nile: 0xcd8690dc * @param chainId chainId */ async switchChain(chainId: string) { try { await this._checkWallet(); if (this.state === AdapterState.NotFound) { if (this.config.openUrlWhenWalletNotFound !== false && isInBrowser()) { window.open(this.url, '_blank'); } throw new WalletNotFoundError(); } if (!this._supportNewTronProtocol) { throw new WalletSwitchChainError("Current version of TronLink doesn't support switch chain operation."); } const wallet = this._wallet as Tron; try { await wallet.request({ method: 'wallet_switchEthereumChain', params: [{ chainId }], }); } catch (e: any) { throw new WalletSwitchChainError(e?.message || e, e instanceof Error ? e : new Error(e)); } } catch (error: any) { this.emit('error', error); throw error; } } private async checkAndGetWallet() { if (this._openAppByDeepLinkIfNeed()) { throw new WalletNotFoundError(); } await this._checkWallet(); if (this.state !== AdapterState.Connected) throw new WalletDisconnectedError(); const wallet = this._wallet; if (!wallet || !wallet.tronWeb) throw new WalletDisconnectedError(); return wallet as Tron & { tronWeb: TronWeb }; } protected _openAppByDeepLinkIfNeed(): boolean { if (this.config.openAppWithDeeplink === false || this.config.openTronLinkAppOnMobile === false) { return false; } const { dappName = '', dappIcon = '' } = this.config; return openTronLink({ dappIcon, dappName }); } // following code is for TIP-1193 private _listenTronEvent() { this._stopListenTronEvent(); const wallet = this._wallet as Tron; wallet.on?.('chainChanged', this._onChainChanged); wallet.on?.('accountsChanged', this._onAccountsChanged); } private _stopListenTronEvent() { const wallet = this._wallet as Tron; wallet.removeListener?.('chainChanged', this._onChainChanged); wallet.removeListener?.('accountsChanged', this._onAccountsChanged); } private _onChainChanged: TronChainChangedCallback = (data) => { this.emit('chainChanged', data); }; private _onAccountsChanged: TronAccountsChangedCallback = () => { const preAddr = this.address || ''; const curAddr = (this._wallet?.tronWeb && this._wallet?.tronWeb.defaultAddress?.base58) || ''; this.setAddress(curAddr ? curAddr : null); this.setState(this.address ? AdapterState.Connected : AdapterState.Disconnect); this.emit('accountsChanged', this.address || '', preAddr); if (!preAddr && this.address) { this.emit('connect', this.address); } else if (preAddr && !this.address) { this.emit('disconnect'); } }; private _checkPromise: Promise | null = null; private isLegacyTronLinkProvider(provider: Tron | undefined | null) { return !!provider?.isTronLink; } private hasDesktopLegacyTronLinkProvider() { return this.isLegacyTronLinkProvider(window.tron) || !!window.tronLink; } /** * check if wallet exists by interval, the promise only resolve when wallet detected or timeout * @returns if wallet exists */ protected _checkWallet(): Promise { if (this.readyState === WalletReadyState.Found) { return Promise.resolve(true); } if (this._checkPromise) { return this._checkPromise; } if (isInBrowser() && !isInMobileBrowser()) { // Desktop: use TIP-6963 event-based discovery with fallback this._checkPromise = new Promise((resolve) => { let handled = false; let timer: ReturnType | null = null; let interval: ReturnType | null = null; let handler: ((event: TIP6963AnnounceProviderEvent) => void) | null = null; const cleanupDesktopDetection = () => { if (interval) { clearInterval(interval); interval = null; } if (timer) { clearTimeout(timer); timer = null; } if (typeof window !== 'undefined' && handler) { window.removeEventListener(TIP6963AnnounceProviderEventName, handler); } }; const finishWithLegacyDetection = () => { if (handled) { return; } handled = true; cleanupDesktopDetection(); if (typeof window === 'undefined') { resolve(false); return; } // Fallback to legacy detection this._updateWallet(); const isSupport = this.state !== AdapterState.NotFound; this._readyState = isSupport ? WalletReadyState.Found : WalletReadyState.NotFound; this.emit('readyStateChanged', this._readyState); resolve(isSupport); }; timer = setTimeout(finishWithLegacyDetection, this.config.checkTimeout); handler = async (event: TIP6963AnnounceProviderEvent) => { if (handled) { return; } const { info, provider } = event.detail; const isTronLinkProvider = info.name === 'TronLink'; if (isTronLinkProvider) { handled = true; this._supportNewTronProtocol = true; this._wallet = provider as unknown as Tron; try { await this.checkSecurity(); } catch { this.setAddress(null); this.setState(AdapterState.Disconnect); this._readyState = WalletReadyState.Found; this.emit('readyStateChanged', this.readyState); resolve(true); return; } this._listenTronEvent(); this._readyState = WalletReadyState.Found; const address = (this._wallet?.tronWeb && (this._wallet.tronWeb as TronWeb).defaultAddress?.base58) || null; const state = address ? AdapterState.Connected : AdapterState.Disconnect; this.setAddress(address); this.setState(state); this.emit('readyStateChanged', this.readyState); cleanupDesktopDetection(); resolve(true); } }; window.addEventListener(TIP6963AnnounceProviderEventName, handler); window.dispatchEvent(new Event(TIP6963RequestProviderEventName)); }); return this._checkPromise; } // Mobile: use legacy polling detection const interval = 100; const maxTimes = Math.floor(this.config.checkTimeout / interval); let times = 0, timer: ReturnType; this._checkPromise = new Promise((resolve) => { const check = () => { times++; this._updateWallet(); const isSupport = !!(isInMobileBrowser() && (window.tronLink || window.tronWeb)); if (isSupport || times > maxTimes) { timer && clearInterval(timer); this._readyState = isSupport ? WalletReadyState.Found : WalletReadyState.NotFound; this.emit('readyStateChanged', this.readyState); resolve(isSupport); } }; timer = setInterval(check, interval); check(); }); return this._checkPromise; } private _updateWallet = async () => { this._supportNewTronProtocol = false; let state = this.state; let address = this.address; if (isInMobileBrowser()) { if (window.tronLink) { this._wallet = window.tronLink; } else { this._wallet = { ready: !!window.tronWeb?.defaultAddress, tronWeb: window.tronWeb, request: () => Promise.resolve(true) as any, } as TronLinkWallet; } address = this._wallet.tronWeb?.defaultAddress?.base58 || null; if (address) { // Only run the security check once the wallet is actually connected. try { await this.checkSecurity(); } catch { this.setAddress(null); this.setState(AdapterState.Disconnect); return; } state = AdapterState.Connected; } else { state = AdapterState.Disconnect; } } else if (this.isLegacyTronLinkProvider(window.tron)) { this._supportNewTronProtocol = true; this._wallet = window.tron as Tron; this._listenTronEvent(); try { address = (this._wallet?.tronWeb && this._wallet.tronWeb?.defaultAddress?.base58) || null; state = address ? AdapterState.Connected : AdapterState.Disconnect; } catch (e) { console.error('Unknown error: ' + e, ' Please install TronLink extension wallet.'); address = null; state = AdapterState.Disconnect; this._readyState = WalletReadyState.NotFound; this.emit('readyStateChanged', this.readyState); return; } } else if (window.tronLink) { this._wallet = window.tronLink; address = this._wallet.tronWeb?.defaultAddress?.base58 || null; state = this._wallet.ready ? AdapterState.Connected : AdapterState.Disconnect; } else { // no tronlink support this._wallet = null; address = null; state = AdapterState.NotFound; } // In TronLink App, account should be connected if (isInMobileBrowser() && state === AdapterState.Disconnect) { this.checkForWalletReadyForApp(); } this.setAddress(address); this.setState(state); }; private checkReadyInterval: ReturnType | null = null; private checkForWalletReadyForApp() { if (this.checkReadyInterval) { return; } let times = 0; const maxTimes = Math.floor(this.config.checkTimeout / 200); const check = () => { if (window.tronLink ? window.tronLink.tronWeb?.defaultAddress : window.tronWeb?.defaultAddress) { this.checkReadyInterval && clearInterval(this.checkReadyInterval); this.checkReadyInterval = null; this._updateWallet(); this.emit('connect', this.address || ''); } else if (times > maxTimes) { this.checkReadyInterval && clearInterval(this.checkReadyInterval); this.checkReadyInterval = null; } else { times++; } }; this.checkReadyInterval = setInterval(check, 200); } private setAddress(address: string | null) { this._address = address; } private setState(state: AdapterState) { const preState = this.state; if (state !== preState) { this._state = state; this.emit('stateChanged', state); } } }