improvement(lists): add BA SEC tokens to unsupported list (Uniswap#1327)

* show hidden search results by default

* update break styles

* optimize filter, use debounce on input

* increase debounce time

* add ba association list

src/components/swap/UnsupportedCurrencyFooter.tsx

@@ -64,7 +64,6 @@ export default function UnsupportedCurrencyFooter({
           <AutoColumn gap="lg">
             <RowBetween>
               <TYPE.mediumHeader>Unsupported Assets</TYPE.mediumHeader>
-
               <CloseIcon onClick={() => setShowDetails(false)} />
             </RowBetween>
             {tokens.map(token => {

src/constants/lists.ts

@@ -1,8 +1,4 @@
 // used to mark unsupported tokens, these are hosted lists of unsupported tokens
-/**
- * @TODO add list from blockchain association
- */
-export const UNSUPPORTED_LIST_URLS: string[] = []
 
 const COMPOUND_LIST = 'https://raw.githubusercontent.com/compound-finance/token-list/master/compound.tokenlist.json'
 const UMA_LIST = 'https://umaproject.org/uma.tokenlist.json'
@@ -17,6 +13,9 @@ const CMC_ALL_LIST = 'defi.cmc.eth'
 const CMC_STABLECOIN = 'stablecoin.cmc.eth'
 const KLEROS_LIST = 't2crtokens.eth'
 const GEMINI_LIST = 'https://www.gemini.com/uniswap/manifest.json'
+const BA_LIST = 'https://raw.githubusercontent.com/The-Blockchain-Association/sec-notice-list/master/ba-sec-list.json'
+
+export const UNSUPPORTED_LIST_URLS: string[] = [BA_LIST]
 
 // lower index == higher priority for token import
 export const DEFAULT_LIST_OF_LISTS: string[] = [

src/hooks/Trades.ts

@@ -150,18 +150,18 @@ export function useTradeExactOut(currencyIn?: Currency, currencyAmountOut?: Curr
 }
 
 export function useIsTransactionUnsupported(currencyIn?: Currency, currencyOut?: Currency): boolean {
-  const unsupportedToken: { [address: string]: Token } = useUnsupportedTokens()
+  const unsupportedTokens: { [address: string]: Token } = useUnsupportedTokens()
   const { chainId } = useActiveWeb3React()
 
   const tokenIn = wrappedCurrency(currencyIn, chainId)
   const tokenOut = wrappedCurrency(currencyOut, chainId)
 
   // if unsupported list loaded & either token on list, mark as unsupported
-  if (unsupportedToken) {
-    if (tokenIn && Object.keys(unsupportedToken).includes(tokenIn.address)) {
+  if (unsupportedTokens) {
+    if (tokenIn && Object.keys(unsupportedTokens).includes(tokenIn.address)) {
       return true
     }
-    if (tokenOut && Object.keys(unsupportedToken).includes(tokenOut.address)) {
+    if (tokenOut && Object.keys(unsupportedTokens).includes(tokenOut.address)) {
       return true
     }
   }

src/state/lists/reducer.ts

@@ -1,4 +1,4 @@
-import { DEFAULT_ACTIVE_LIST_URLS } from './../../constants/lists'
+import { DEFAULT_ACTIVE_LIST_URLS, UNSUPPORTED_LIST_URLS } from './../../constants/lists'
 import { createReducer } from '@reduxjs/toolkit'
 import { getVersionUpgrade, VersionUpgrade } from '@uniswap/token-lists'
 import { TokenList } from '@uniswap/token-lists/dist/types'
@@ -36,7 +36,7 @@ type Mutable<T> = { -readonly [P in keyof T]: T[P] extends ReadonlyArray<infer U
 const initialState: ListsState = {
   lastInitializedDefaultListOfLists: DEFAULT_LIST_OF_LISTS,
   byUrl: {
-    ...DEFAULT_LIST_OF_LISTS.reduce<Mutable<ListsState['byUrl']>>((memo, listUrl) => {
+    ...DEFAULT_LIST_OF_LISTS.concat(...UNSUPPORTED_LIST_URLS).reduce<Mutable<ListsState['byUrl']>>((memo, listUrl) => {
       memo[listUrl] = NEW_LIST_STATE
       return memo
     }, {})

src/state/lists/updater.ts

@@ -10,6 +10,7 @@ import { AppDispatch } from '../index'
 import { acceptListUpdate } from './actions'
 import { useActiveListUrls } from './hooks'
 import { useAllInactiveTokens } from 'hooks/Tokens'
+import { UNSUPPORTED_LIST_URLS } from 'constants/lists'
 
 export default function Updater(): null {
   const { library } = useActiveWeb3React()
@@ -44,6 +45,16 @@ export default function Updater(): null {
     })
   }, [dispatch, fetchList, library, lists])
 
+  // if any lists from unsupported lists are loaded, check them too (in case new updates since last visit)
+  useEffect(() => {
+    Object.keys(UNSUPPORTED_LIST_URLS).forEach(listUrl => {
+      const list = lists[listUrl]
+      if (!list || (!list.current && !list.loadingRequestId && !list.error)) {
+        fetchList(listUrl).catch(error => console.debug('list added fetching error', error))
+      }
+    })
+  }, [dispatch, fetchList, library, lists])
+
   // automatically update lists if versions are minor/patch
   useEffect(() => {
     Object.keys(lists).forEach(listUrl => {

src/state/user/hooks.tsx

@@ -162,7 +162,7 @@ export function useUserAddedTokens(): Token[] {
 
   return useMemo(() => {
     if (!chainId) return []
-    return Object.values(serializedTokensMap[chainId as ChainId] ?? {}).map(deserializeToken)
+    return Object.values(serializedTokensMap?.[chainId as ChainId] ?? {}).map(deserializeToken)
   }, [serializedTokensMap, chainId])
 }
 

src/state/user/reducer.ts

@@ -111,11 +111,17 @@ export default createReducer(initialState, builder =>
       state.userSingleHopOnly = action.payload.userSingleHopOnly
     })
     .addCase(addSerializedToken, (state, { payload: { serializedToken } }) => {
+      if (!state.tokens) {
+        state.tokens = {}
+      }
       state.tokens[serializedToken.chainId] = state.tokens[serializedToken.chainId] || {}
       state.tokens[serializedToken.chainId][serializedToken.address] = serializedToken
       state.timestamp = currentTimestamp()
     })
     .addCase(removeSerializedToken, (state, { payload: { address, chainId } }) => {
+      if (!state.tokens) {
+        state.tokens = {}
+      }
       state.tokens[chainId] = state.tokens[chainId] || {}
       delete state.tokens[chainId][address]
       state.timestamp = currentTimestamp()