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@ -3,6 +3,14 @@ const extend = require('xtend') |
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const EthQuery = require('eth-query') |
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const log = require('loglevel') |
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const pify = require('pify') |
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const { |
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ROPSTEN, |
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RINKEBY, |
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KOVAN, |
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MAINNET, |
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} = require('./network/enums') |
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const INFURA_PROVIDER_TYPES = [ROPSTEN, RINKEBY, KOVAN, MAINNET] |
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class RecentBlocksController { |
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@ -24,7 +32,7 @@ class RecentBlocksController { |
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* |
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*/ |
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constructor (opts = {}) { |
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const { blockTracker, provider } = opts |
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const { blockTracker, provider, networkController } = opts |
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this.blockTracker = blockTracker |
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this.ethQuery = new EthQuery(provider) |
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this.historyLength = opts.historyLength || 40 |
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@ -33,13 +41,30 @@ class RecentBlocksController { |
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recentBlocks: [], |
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}, opts.initState) |
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this.store = new ObservableStore(initState) |
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this.blockTracker.on('latest', async (newBlockNumberHex) => { |
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const blockListner = async (newBlockNumberHex) => { |
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try { |
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await this.processBlock(newBlockNumberHex) |
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} catch (err) { |
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log.error(err) |
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} |
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} |
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let isListening = false |
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const { type } = networkController.getProviderConfig() |
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if (!INFURA_PROVIDER_TYPES.includes(type) && type !== 'loading') { |
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this.blockTracker.on('latest', blockListner) |
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isListening = true |
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} |
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networkController.on('networkDidChange', (newType) => { |
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if (INFURA_PROVIDER_TYPES.includes(newType) && isListening) { |
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this.blockTracker.removeListener('latest', blockListner) |
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} else if ( |
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!INFURA_PROVIDER_TYPES.includes(type) && |
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type !== 'loading' && |
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!isListening |
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) { |
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this.blockTracker.on('latest', blockListner) |
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} |
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}) |
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this.backfill() |
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} |
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