/
solana.ts
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/
solana.ts
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import type {
Broadcaster,
SignAndBroadcastOptions,
} from "@saberhq/solana-contrib";
import {
doSignAndBroadcastTransaction,
PendingTransaction,
} from "@saberhq/solana-contrib";
import type {
EventEmitter,
SignerWalletAdapter,
WalletAdapterEvents,
} from "@solana/wallet-adapter-base";
import { BaseSignerWalletAdapter } from "@solana/wallet-adapter-base";
import { GlowWalletName } from "@solana/wallet-adapter-glow";
import { PhantomWalletName } from "@solana/wallet-adapter-phantom";
import type { Connection, PublicKey, Transaction } from "@solana/web3.js";
import type { ConnectedWallet, WalletAdapter } from "./types";
export class SolanaWalletAdapter implements WalletAdapter {
constructor(
readonly adapter: Omit<
SignerWalletAdapter,
| "sendTransaction"
| keyof EventEmitter
| "signTransaction"
| "signAllTransactions"
> &
EventEmitter<WalletAdapterEvents> & {
signTransaction: (transaction: Transaction) => Promise<Transaction>;
signAllTransactions: (
transactions: Transaction[]
) => Promise<Transaction[]>;
}
) {}
async signAndBroadcastTransaction(
transaction: Transaction,
connection: Connection,
broadcaster: Broadcaster,
opts?: SignAndBroadcastOptions
): Promise<PendingTransaction> {
if (!transaction.feePayer) {
transaction.feePayer = this.publicKey ?? undefined;
}
if (this.adapter.name === PhantomWalletName) {
if (
window.solana?.isPhantom &&
// check to see if phantom version supports this
"signAndSendTransaction" in window.solana &&
// Phantom doesn't handle partial signers, so if they are provided, don't use `signAndSendTransaction`
(!opts?.signers || opts.signers.length === 0)
) {
// HACK: Phantom's `signAndSendTransaction` should always set these, but doesn't yet
if (!transaction.recentBlockhash) {
const latestBlockhash = await broadcaster.getLatestBlockhash();
transaction.recentBlockhash = latestBlockhash.blockhash;
transaction.lastValidBlockHeight =
latestBlockhash.lastValidBlockHeight;
}
const { signature } = await window.solana.signAndSendTransaction(
transaction,
opts
);
return new PendingTransaction(connection, signature);
}
} else if (this.adapter.name === GlowWalletName) {
if (window.glowSolana && window.glowSolana.signAndSendTransaction) {
// HACK: Glow's `signAndSendTransaction` should always set these, but doesn't yet
if (!transaction.recentBlockhash) {
const latestBlockhash = await broadcaster.getLatestBlockhash();
transaction.recentBlockhash = latestBlockhash.blockhash;
transaction.lastValidBlockHeight =
latestBlockhash.lastValidBlockHeight;
}
const result = await window.glowSolana.signAndSendTransaction({
serialize() {
return {
toString(): string {
return transaction
.serialize({
verifySignatures: false,
})
.toString("base64");
},
};
},
});
return new PendingTransaction(connection, result.signature);
}
} else if (this.adapter instanceof BaseSignerWalletAdapter) {
// attempt to use the wallet's native transaction sending feature
const signature = await this.adapter.sendTransaction(
transaction,
connection,
opts
);
return new PendingTransaction(connection, signature);
}
return await doSignAndBroadcastTransaction(
this as ConnectedWallet,
transaction,
broadcaster,
opts
);
}
get connected(): boolean {
return this.adapter.connected;
}
get autoApprove(): boolean {
return false;
}
async signAllTransactions(
transactions: Transaction[]
): Promise<Transaction[]> {
return this.adapter.signAllTransactions(transactions);
}
get publicKey(): PublicKey | null {
return this.adapter.publicKey;
}
async signTransaction(transaction: Transaction): Promise<Transaction> {
if (!this.adapter) {
return transaction;
}
return this.adapter.signTransaction(transaction);
}
connect = async (): Promise<void> => {
await this.adapter.connect();
};
async disconnect(): Promise<void> {
await this.adapter.disconnect();
}
on(event: "connect" | "disconnect", fn: () => void): void {
this.adapter.on(event, fn);
}
}