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author | Fabio Berger <me@fabioberger.com> | 2017-11-22 04:03:08 +0800 |
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committer | Fabio Berger <me@fabioberger.com> | 2017-11-22 04:03:08 +0800 |
commit | 3660ba28d73d70d08bf14c33ef680e5ef3ec7f3b (patch) | |
tree | f101656799da807489253e17bea7abfaea90b62d /packages/website/ts/utils/utils.ts | |
parent | 037f466e1f80f635b48f3235258402e2ce75fb7b (diff) | |
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Add website to mono repo, update packages to align with existing sub-packages, use new subscribeAsync 0x.js method
Diffstat (limited to 'packages/website/ts/utils/utils.ts')
-rw-r--r-- | packages/website/ts/utils/utils.ts | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/packages/website/ts/utils/utils.ts b/packages/website/ts/utils/utils.ts new file mode 100644 index 000000000..eb4c5be3a --- /dev/null +++ b/packages/website/ts/utils/utils.ts @@ -0,0 +1,215 @@ +import * as _ from 'lodash'; +import { + SideToAssetToken, + SignatureData, + Order, + Side, + TokenByAddress, + OrderParty, + ScreenWidths, + EtherscanLinkSuffixes, + Token, + Networks, +} from 'ts/types'; +import * as moment from 'moment'; +import isMobile = require('is-mobile'); +import * as u2f from 'ts/vendor/u2f_api'; +import deepEqual = require('deep-equal'); +import ethUtil = require('ethereumjs-util'); +import BigNumber from 'bignumber.js'; +import {constants} from 'ts/utils/constants'; + +const LG_MIN_EM = 64; +const MD_MIN_EM = 52; + +export const utils = { + assert(condition: boolean, message: string) { + if (!condition) { + throw new Error(message); + } + }, + spawnSwitchErr(name: string, value: any) { + return new Error(`Unexpected switch value: ${value} encountered for ${name}`); + }, + isNumeric(n: string) { + return !isNaN(parseFloat(n)) && isFinite(Number(n)); + }, + // This default unix timestamp is used for orders where the user does not specify an expiry date. + // It is a fixed constant so that both the redux store's INITIAL_STATE and components can check for + // whether a user has set an expiry date or not. It is set unrealistically high so as not to collide + // with actual values a user would select. + initialOrderExpiryUnixTimestampSec(): BigNumber { + const m = moment('2050-01-01'); + return new BigNumber(m.unix()); + }, + convertToUnixTimestampSeconds(date: moment.Moment, time?: moment.Moment): BigNumber { + const finalMoment = date; + if (!_.isUndefined(time)) { + finalMoment.hours(time.hours()); + finalMoment.minutes(time.minutes()); + } + return new BigNumber(finalMoment.unix()); + }, + convertToMomentFromUnixTimestamp(unixTimestampSec: BigNumber): moment.Moment { + return moment.unix(unixTimestampSec.toNumber()); + }, + convertToReadableDateTimeFromUnixTimestamp(unixTimestampSec: BigNumber): string { + const m = this.convertToMomentFromUnixTimestamp(unixTimestampSec); + const formattedDate: string = m.format('h:MMa MMMM D YYYY'); + return formattedDate; + }, + generateOrder(networkId: number, exchangeContract: string, sideToAssetToken: SideToAssetToken, + orderExpiryTimestamp: BigNumber, orderTakerAddress: string, orderMakerAddress: string, + makerFee: BigNumber, takerFee: BigNumber, feeRecipient: string, + signatureData: SignatureData, tokenByAddress: TokenByAddress, orderSalt: BigNumber): Order { + const makerToken = tokenByAddress[sideToAssetToken[Side.deposit].address]; + const takerToken = tokenByAddress[sideToAssetToken[Side.receive].address]; + const order = { + maker: { + address: orderMakerAddress, + token: { + name: makerToken.name, + symbol: makerToken.symbol, + decimals: makerToken.decimals, + address: makerToken.address, + }, + amount: sideToAssetToken[Side.deposit].amount.toString(), + feeAmount: makerFee.toString(), + }, + taker: { + address: orderTakerAddress, + token: { + name: takerToken.name, + symbol: takerToken.symbol, + decimals: takerToken.decimals, + address: takerToken.address, + }, + amount: sideToAssetToken[Side.receive].amount.toString(), + feeAmount: takerFee.toString(), + }, + expiration: orderExpiryTimestamp.toString(), + feeRecipient, + salt: orderSalt.toString(), + signature: signatureData, + exchangeContract, + networkId, + }; + return order; + }, + consoleLog(message: string) { + /* tslint:disable */ + console.log(message); + /* tslint:enable */ + }, + sleepAsync(ms: number) { + return new Promise(resolve => setTimeout(resolve, ms)); + }, + deepEqual(actual: any, expected: any, opts?: {strict: boolean}) { + return deepEqual(actual, expected, opts); + }, + getColSize(items: number) { + const bassCssGridSize = 12; // Source: http://basscss.com/#basscss-grid + const colSize = 12 / items; + if (!_.isInteger(colSize)) { + throw new Error('Number of cols must be divisible by 12'); + } + return colSize; + }, + getScreenWidth() { + const documentEl = document.documentElement; + const body = document.getElementsByTagName('body')[0]; + const widthInPx = window.innerWidth || documentEl.clientWidth || body.clientWidth; + const bodyStyles: any = window.getComputedStyle(document.querySelector('body')); + const widthInEm = widthInPx / parseFloat(bodyStyles['font-size']); + + // This logic mirrors the CSS media queries in BassCSS for the `lg-`, `md-` and `sm-` CSS + // class prefixes. Do not edit these. + if (widthInEm > LG_MIN_EM) { + return ScreenWidths.LG; + } else if (widthInEm > MD_MIN_EM) { + return ScreenWidths.MD; + } else { + return ScreenWidths.SM; + } + }, + isUserOnMobile(): boolean { + const isUserOnMobile = isMobile(); + return isUserOnMobile; + }, + getEtherScanLinkIfExists(addressOrTxHash: string, networkId: number, suffix: EtherscanLinkSuffixes): string { + const networkName = constants.networkNameById[networkId]; + if (_.isUndefined(networkName)) { + return undefined; + } + const etherScanPrefix = networkName === Networks.mainnet ? '' : `${networkName.toLowerCase()}.`; + return `https://${etherScanPrefix}etherscan.io/${suffix}/${addressOrTxHash}`; + }, + setUrlHash(anchorId: string) { + window.location.hash = anchorId; + }, + async isU2FSupportedAsync(): Promise<boolean> { + const w = (window as any); + return new Promise((resolve: (isSupported: boolean) => void) => { + if (w.u2f && !w.u2f.getApiVersion) { + // u2f object was found (Firefox with extension) + resolve(true); + } else { + // u2f object was not found. Using Google polyfill + // HACK: u2f.getApiVersion will simply not return a version if the + // U2F call fails for any reason. Because of this, we set a hard 3sec + // timeout to the request on our end. + const getApiVersionTimeoutMs = 3000; + const intervalId = setTimeout(() => { + resolve(false); + }, getApiVersionTimeoutMs); + u2f.getApiVersion((version: number) => { + clearTimeout(intervalId); + resolve(true); + }); + } + }); + }, + // This checks the error message returned from an injected Web3 instance on the page + // after a user was prompted to sign a message or send a transaction and decided to + // reject the request. + didUserDenyWeb3Request(errMsg: string) { + const metamaskDenialErrMsg = 'User denied message'; + const paritySignerDenialErrMsg = 'Request has been rejected'; + const ledgerDenialErrMsg = 'Invalid status 6985'; + const isUserDeniedErrMsg = _.includes(errMsg, metamaskDenialErrMsg) || + _.includes(errMsg, paritySignerDenialErrMsg) || + _.includes(errMsg, ledgerDenialErrMsg); + return isUserDeniedErrMsg; + }, + getCurrentEnvironment() { + switch (location.host) { + case constants.DEVELOPMENT_DOMAIN: + return 'development'; + case constants.STAGING_DOMAIN: + return 'staging'; + case constants.PRODUCTION_DOMAIN: + return 'production'; + default: + return 'production'; + } + }, + getIdFromName(name: string) { + const id = name.replace(/ /g, '-'); + return id; + }, + getAddressBeginAndEnd(address: string): string { + const truncatedAddress = `${address.substring(0, 6)}...${address.substr(-4)}`; // 0x3d5a...b287 + return truncatedAddress; + }, + hasUniqueNameAndSymbol(tokens: Token[], token: Token) { + if (token.isRegistered) { + return true; // Since it's registered, it is the canonical token + } + const registeredTokens = _.filter(tokens, t => t.isRegistered); + const tokenWithSameNameIfExists = _.find(registeredTokens, {name: token.name}); + const isUniqueName = _.isUndefined(tokenWithSameNameIfExists); + const tokenWithSameSymbolIfExists = _.find(registeredTokens, {name: token.symbol}); + const isUniqueSymbol = _.isUndefined(tokenWithSameSymbolIfExists); + return isUniqueName && isUniqueSymbol; + }, +}; |