feat: create donation banner (#3403)

* create donation banner

* update styling and copy

* only show banner on swap page

* dont use hard coded z index

* style updates

src/components/Popups/DonationLink.tsx

+import { Trans } from '@lingui/macro'
+import FlagImage from 'assets/images/ukraine.png'
+import { AutoColumn } from 'components/Column'
+import { RowBetween, RowFixed } from 'components/Row'
+import { X } from 'react-feather'
+import ReactGA from 'react-ga'
+import { useDarkModeManager, useShowDonationLink } from 'state/user/hooks'
+import styled from 'styled-components/macro'
+import { ExternalLink, ThemedText, Z_INDEX } from 'theme'
+
+const darkGradient = `radial-gradient(87.53% 3032.45% at 5.16% 10.13%, rgba(255, 255, 255, 0.2) 0%, rgba(255, 255, 255, 0) 100%),
+linear-gradient(0deg, rgba(0, 91, 187, 0.35), rgba(0, 91, 187, 0.35)), #000000;`
+const lightGradient = `radial-gradient(87.53% 3032.45% at 5.16% 10.13%, rgba(255, 255, 255, 0.2) 0%, rgba(255, 255, 255, 0) 100%), linear-gradient(0deg, #CBE4FF, #CBE4FF), linear-gradient(0deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.09)), radial-gradient(100% 93.36% at 0% 6.64%, #8BC4FF 0%, #FFF5BF 100%);`
+
+const Wrapper = styled(AutoColumn)<{ darkMode: boolean }>`
+  background: #edeef2;
+  position: fixed;
+  bottom: 40px;
+  border-radius: 12px;
+  padding: 18px;
+  max-width: 360px;
+  background: ${({ darkMode }) => (darkMode ? darkGradient : lightGradient)};
+  color: ${({ theme }) => theme.text1};
+  z-index: ${Z_INDEX.deprecated_content};
+
+  :hover {
+    opacity: 0.8;
+  }
+
+  & > * {
+    z-index: ${Z_INDEX.fixed};
+  }
+
+  overflow: hidden;
+
+  :before {
+    background-image: url(${FlagImage});
+    background-repeat: no-repeat;
+    overflow: hidden;
+    background-size: 300px;
+    content: '';
+    height: 1200px;
+    width: 400px;
+    opacity: 0.1;
+    position: absolute;
+    transform: rotate(25deg) translate(-140px, -60px);
+    width: 300px;
+    z-index: ${Z_INDEX.deprecated_zero};
+  }
+
+  ${({ theme }) => theme.mediaWidth.upToSmall`
+    max-width: 100%;
+  `}
+
+  ${({ theme }) => theme.mediaWidth.upToMedium`
+    position: relative;
+    bottom: unset;
+  `}
+`
+
+const WrappedCloseIcon = styled(X)`
+  stroke: ${({ theme }) => theme.text2};
+  z-index: ${Z_INDEX.tooltip};
+  :hover {
+    cursor: pointer;
+    opacity: 0.8;
+  }
+`
+
+export const StyledFlagImage = styled.div`
+  margin-right: 12px;
+  width: 18px;
+  height: 18px;
+  border-radius: 100%;
+  &:before,
+  &:after {
+    content: '';
+    width: 9px;
+    height: 18px;
+  }
+  &:before {
+    float: left;
+    border-top-left-radius: 9px;
+    border-bottom-left-radius: 9px;
+    background: #005bbb;
+  }
+  &:after {
+    float: right;
+    border-top-right-radius: 9px;
+    border-bottom-right-radius: 9px;
+    background: #ffd500;
+  }
+  transform: rotate(90deg);
+`
+
+const StyledLink = styled(ExternalLink)`
+  text-decoration: none !important;
+`
+
+export default function DonationLink() {
+  const [darkMode] = useDarkModeManager()
+  const [, setVisible] = useShowDonationLink()
+
+  return (
+    <Wrapper
+      gap="10px"
+      darkMode={darkMode}
+      as={StyledLink}
+      target="https://donate.uniswap.org/#/swap"
+      href="https://donate.uniswap.org/#/swap"
+      onClickCapture={() => {
+        ReactGA.event({
+          category: 'Donate',
+          action: 'Link to Ukraine site.',
+        })
+      }}
+    >
+      <RowBetween>
+        <RowFixed>
+          <StyledFlagImage />
+          <ThemedText.Body fontWeight={600} fontSize={'18px'}>
+            <Trans>Donate to Ukraine</Trans>
+          </ThemedText.Body>
+        </RowFixed>
+        <WrappedCloseIcon
+          onClick={(e) => {
+            e.preventDefault()
+            e.stopPropagation()
+            setVisible(false)
+            return false
+          }}
+        />
+      </RowBetween>
+      <ThemedText.Body fontWeight={400} fontSize="12px" color="text2">
+        <Trans>Directly support the Ukrainian government by donating tokens.</Trans>
+      </ThemedText.Body>
+    </Wrapper>
+  )
+}

src/components/Popups/index.tsx

 import { SupportedChainId } from 'constants/chains'
 import useActiveWeb3React from 'hooks/useActiveWeb3React'
+import { useLocation } from 'react-router-dom'
 import styled from 'styled-components/macro'
 import { MEDIA_WIDTHS } from 'theme'
 
 import { useActivePopups } from '../../state/application/hooks'
-import { useURLWarningVisible } from '../../state/user/hooks'
+import { useShowDonationLink, useURLWarningVisible } from '../../state/user/hooks'
 import { AutoColumn } from '../Column'
 import ClaimPopup from './ClaimPopup'
+import DonationLink from './DonationLink'
 import PopupItem from './PopupItem'
 
 const MobilePopupWrapper = styled.div<{ height: string | number }>`
@@ -14,11 +16,12 @@ const MobilePopupWrapper = styled.div<{ height: string | number }>`
   max-width: 100%;
   height: ${({ height }) => height};
   margin: ${({ height }) => (height ? '0 auto;' : 0)};
-  margin-bottom: ${({ height }) => (height ? '20px' : 0)}};
+  margin-bottom: ${({ height }) => (height ? '20px' : 0)};
 
   display: none;
   ${({ theme }) => theme.mediaWidth.upToSmall`
     display: block;
+    padding-top: 20px;
   `};
 `
 
@@ -65,6 +68,11 @@ export default function Popups() {
   const { chainId } = useActiveWeb3React()
   const isNotOnMainnet = Boolean(chainId && chainId !== SupportedChainId.MAINNET)
 
+  const location = useLocation()
+  const isOnSwapPage = location.pathname.includes('swap')
+  const [donationVisible] = useShowDonationLink()
+  const showDonation = donationVisible && isOnSwapPage
+
   return (
     <>
       <FixedPopupColumn gap="20px" extraPadding={urlWarningActive} xlPadding={isNotOnMainnet}>
@@ -72,9 +80,11 @@ export default function Popups() {
         {activePopups.map((item) => (
           <PopupItem key={item.key} content={item.content} popKey={item.key} removeAfterMs={item.removeAfterMs} />
         ))}
+        {showDonation ? <DonationLink /> : null}
       </FixedPopupColumn>
-      <MobilePopupWrapper height={activePopups?.length > 0 ? 'fit-content' : 0}>
+      <MobilePopupWrapper height={activePopups?.length > 0 || showDonation ? 'fit-content' : 0}>
         <MobilePopupInner>
+          {showDonation ? <DonationLink /> : null}
           {activePopups // reverse so new items up front
             .slice(0)
             .reverse()

src/state/user/actions.ts

@@ -19,6 +19,7 @@ export const updateUserDarkMode = createAction<{ userDarkMode: boolean }>('user/
 export const updateUserExpertMode = createAction<{ userExpertMode: boolean }>('user/updateUserExpertMode')
 export const updateUserLocale = createAction<{ userLocale: SupportedLocale }>('user/updateUserLocale')
 export const updateShowSurveyPopup = createAction<{ showSurveyPopup: boolean }>('user/updateShowSurveyPopup')
+export const updateShowDonationLink = createAction<{ showDonationLink: boolean }>('user/updateShowDonationLink')
 export const updateUserClientSideRouter = createAction<{ userClientSideRouter: boolean }>(
   'user/updateUserClientSideRouter'
 )

src/state/user/hooks.tsx

@@ -4,6 +4,7 @@ import { L2_CHAIN_IDS } from 'constants/chains'
 import { SupportedLocale } from 'constants/locales'
 import { L2_DEADLINE_FROM_NOW } from 'constants/misc'
 import useActiveWeb3React from 'hooks/useActiveWeb3React'
+import useCurrentBlockTimestamp from 'hooks/useCurrentBlockTimestamp'
 import JSBI from 'jsbi'
 import { useCallback, useMemo } from 'react'
 import { shallowEqual } from 'react-redux'
@@ -20,6 +21,7 @@ import {
   SerializedPair,
   SerializedToken,
   updateHideClosedPositions,
+  updateShowDonationLink,
   updateShowSurveyPopup,
   updateUserClientSideRouter,
   updateUserDarkMode,
@@ -117,6 +119,26 @@ export function useShowSurveyPopup(): [boolean | undefined, (showPopup: boolean)
   return [showSurveyPopup, toggleShowSurveyPopup]
 }
 
+const DONATION_END_TIMESTAMP = 1646864954 // Jan 15th
+
+export function useShowDonationLink(): [boolean | undefined, (showDonationLink: boolean) => void] {
+  const dispatch = useAppDispatch()
+  const showDonationLink = useAppSelector((state) => state.user.showDonationLink)
+
+  const toggleShowDonationLink = useCallback(
+    (showPopup: boolean) => {
+      dispatch(updateShowDonationLink({ showDonationLink: showPopup }))
+    },
+    [dispatch]
+  )
+
+  const timestamp = useCurrentBlockTimestamp()
+  const durationOver = timestamp ? timestamp.toNumber() > DONATION_END_TIMESTAMP : false
+  const donationVisible = showDonationLink !== false && !durationOver
+
+  return [donationVisible, toggleShowDonationLink]
+}
+
 export function useClientSideRouter(): [boolean, (userClientSideRouter: boolean) => void] {
   const dispatch = useAppDispatch()
 

src/state/user/reducer.ts

@@ -12,6 +12,7 @@ import {
   SerializedToken,
   updateHideClosedPositions,
   updateMatchesDarkMode,
+  updateShowDonationLink,
   updateShowSurveyPopup,
   updateUserClientSideRouter,
   updateUserDarkMode,
@@ -64,6 +65,8 @@ export interface UserState {
 
   // undefined means has not gone through A/B split yet
   showSurveyPopup: boolean | undefined
+
+  showDonationLink: boolean
 }
 
 function pairKey(token0Address: string, token1Address: string) {
@@ -85,6 +88,7 @@ export const initialState: UserState = {
   timestamp: currentTimestamp(),
   URLWarningVisible: true,
   showSurveyPopup: undefined,
+  showDonationLink: true,
 }
 
 export default createReducer(initialState, (builder) =>
@@ -155,6 +159,9 @@ export default createReducer(initialState, (builder) =>
     .addCase(updateShowSurveyPopup, (state, action) => {
       state.showSurveyPopup = action.payload.showSurveyPopup
     })
+    .addCase(updateShowDonationLink, (state, action) => {
+      state.showDonationLink = action.payload.showDonationLink
+    })
     .addCase(addSerializedToken, (state, { payload: { serializedToken } }) => {
       if (!state.tokens) {
         state.tokens = {}