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-rw-r--r--app/scripts/lib/auto-reload.js62
1 files changed, 42 insertions, 20 deletions
diff --git a/app/scripts/lib/auto-reload.js b/app/scripts/lib/auto-reload.js
index 6abce73ea..cce31c3d2 100644
--- a/app/scripts/lib/auto-reload.js
+++ b/app/scripts/lib/auto-reload.js
@@ -2,33 +2,55 @@ 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, name) => {
- // get the time of use
- if (name !== '_used') {
- console.warn('MetaMask: web3 will be deprecated in the near future in favor of the ethereumProvider \nhttps://github.com/ethereum/mist/releases/tag/v0.9.0')
- _web3._used = Date.now()
+ get: (_web3, key) => {
+ // show warning once on web3 access
+ if (!hasBeenWarned && key !== 'currentProvider') {
+ 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')
+ hasBeenWarned = true
}
- return _web3[name]
+ // get the time of use
+ lastTimeUsed = Date.now()
+ // return value normally
+ return _web3[key]
},
- set: (_web3, name, value) => {
- _web3[name] = value
+ 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)
}
})
}