inpage provider - autoreload - improve readability

feature/default_network_editable
kumavis 7 years ago
parent 44dc2ba712
commit 4019f318fe
  1. 47
      app/scripts/lib/auto-reload.js

@ -3,6 +3,10 @@ module.exports = setupDappAutoReload
function setupDappAutoReload (web3, observable) {
// export web3 as a global, checking for usage
let hasBeenWarned = false
let reloadInProgress = false
let lastTimeUsed
let lastSeenNetwork
global.web3 = new Proxy(web3, {
get: (_web3, key) => {
// show warning once on web3 access
@ -11,29 +15,42 @@ function setupDappAutoReload (web3, observable) {
hasBeenWarned = true
}
// get the time of use
if (key !== '_used') {
_web3._used = Date.now()
}
lastTimeUsed = Date.now()
// return value normally
return _web3[key]
},
set: (_web3, key, value) => {
// set value normally
_web3[key] = value
},
})
var networkVersion
observable.subscribe(function (state) {
// get the initial network
const curentNetVersion = state.networkVersion
if (!networkVersion) networkVersion = curentNetVersion
if (curentNetVersion !== networkVersion && web3._used) {
const timeSinceUse = Date.now() - web3._used
// if web3 was recently used then delay the reloading of the page
timeSinceUse > 500 ? triggerReset() : setTimeout(triggerReset, 500)
// prevent reentry into if statement if state updates again before
// reload
networkVersion = curentNetVersion
// if reload in progress, no need to check reload logic
if (reloadInProgress) return
const currentNetwork = state.networkVersion
// set the initial network
if (!lastSeenNetwork) {
lastSeenNetwork = currentNetwork
return
}
// skip reload logic if web3 not used
if (!lastTimeUsed) return
// if network did not change, exit
if (currentNetwork === lastSeenNetwork) return
// initiate page reload
reloadInProgress = true
const timeSinceUse = Date.now() - lastTimeUsed
// if web3 was recently used then delay the reloading of the page
if (timeSinceUse > 500) {
triggerReset()
} else {
setTimeout(triggerReset, 500)
}
})
}

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