Aegis now handles the standard MetaMask try-switch-then-add flow. A dapp
that wants to route through Polygon (or Base, or Arbitrum, or any other
EVM the Silent Mode user hasn't added yet) calls the pair the industry
already wrote for it — Aegis registers the chain, provisions a wallet on
it under the same vault seed, auto-connects the origin, fires
chainChanged, and hands the dapp back a provider pointed at the new
chain. No sidebar detour, no Custom RPC copy-paste. Users still see
every chain in the picker post-add and can revoke sites in Settings.
- lib/chain-eth.js: EthWallet accepts a customNetwork override
({id, label, chainId, defaultRpc, explorerTx, explorerAddr, ticker}).
When present it replaces the NETWORKS lookup so mainnet+Sepolia
ship built-in and every EIP-3085 chain is a runtime override the
addon persists. The ticker flows into snapshot() so the send
approval reads MATIC / BNB / whatever the chain's native currency is,
not a hardcoded ETH.
- index.js customEthChains storage: `{[chainId]: {chainName, rpcUrl,
explorerTx, explorerAddr, ticker, addedAt, addedByOrigin}}`.
Persisted under api.storage.customEthChains, so an added chain
survives Theseus restarts. chainMeta("eth", "custom-<chainId>")
synthesizes the meta from storage so the panel renders custom
chains without needing them in COINS at module-load time.
- eth.addChain handler (EIP-3085): approval overlay shows chain
name, decimal + hex chain id, native ticker, RPC and explorer
URLs (the phishing-signal quartet). On approval, persist config +
create wallet with a custom-<chainId> network + auto-grant the
origin readAddress on this chain. No-op success if the chain is
already added.
- eth.switchChain rewritten to be EIP-3326 correct: look up any
ready ETH wallet whose adapter reports the requested chainId,
make it the selected wallet, fire chainChanged. When no wallet
matches, throw with .code = 4902 (the standard 'chain not
added' code) so wagmi / RainbowKit / any 3326-aware dapp does
the fallback wallet_addEthereumChain call in the same click.
- eth.state handler: cheap {address, chainIdHex, networkVersion}
peek for the origin's currently-connected wallet (no approval,
no key access). The main-world bridge calls it after every
switch/add to emit chainChanged + accountsChanged locally — the
events MetaMask fires and RainbowKit listens for.
- wallet-inject.js: routes wallet_addEthereumChain via
eth.addChain, preserves the 4902 code across the postMessage
boundary on switch failures, calls pullEthStateAndEmit() to fire
the post-switch/add events.
1b29706ba4