Bruno
6 years ago
commit
bb4cc72646
@ -1,61 +0,0 @@ |
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module.exports = setupDappAutoReload |
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function setupDappAutoReload (web3, observable) { |
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// export web3 as a global, checking for usage
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let hasBeenWarned = false |
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let reloadInProgress = false |
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let lastTimeUsed |
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let lastSeenNetwork |
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global.web3 = new Proxy(web3, { |
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get: (_web3, key) => { |
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// show warning once on web3 access
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if (!hasBeenWarned && key !== 'currentProvider') { |
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console.warn('MetaMask: web3 will be deprecated in the near future in favor of the ethereumProvider \nhttps://github.com/MetaMask/faq/blob/master/detecting_metamask.md#web3-deprecation') |
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hasBeenWarned = true |
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} |
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// get the time of use
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lastTimeUsed = Date.now() |
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// return value normally
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return _web3[key] |
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}, |
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set: (_web3, key, value) => { |
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// set value normally
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_web3[key] = value |
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}, |
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}) |
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observable.subscribe(function (state) { |
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// if reload in progress, no need to check reload logic
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if (reloadInProgress) return |
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const currentNetwork = state.networkVersion |
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// set the initial network
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if (!lastSeenNetwork) { |
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lastSeenNetwork = currentNetwork |
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return |
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} |
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// skip reload logic if web3 not used
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if (!lastTimeUsed) return |
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// if network did not change, exit
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if (currentNetwork === lastSeenNetwork) return |
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// initiate page reload
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reloadInProgress = true |
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const timeSinceUse = Date.now() - lastTimeUsed |
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// if web3 was recently used then delay the reloading of the page
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if (timeSinceUse > 500) { |
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triggerReset() |
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} else { |
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setTimeout(triggerReset, 500) |
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} |
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}) |
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} |
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// reload the page
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function triggerReset () { |
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global.location.reload() |
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} |
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