Created
March 18, 2014 14:18
-
-
Save cabe56/9620963 to your computer and use it in GitHub Desktop.
Script for debugging HTML5 app cache
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
var cacheStatusValues = []; | |
cacheStatusValues[0] = 'uncached'; | |
cacheStatusValues[1] = 'idle'; | |
cacheStatusValues[2] = 'checking'; | |
cacheStatusValues[3] = 'downloading'; | |
cacheStatusValues[4] = 'updateready'; | |
cacheStatusValues[5] = 'obsolete'; | |
var cache = window.applicationCache; | |
cache.addEventListener('cached', logEvent, false); | |
cache.addEventListener('checking', logEvent, false); | |
cache.addEventListener('downloading', logEvent, false); | |
cache.addEventListener('error', logEvent, false); | |
cache.addEventListener('noupdate', logEvent, false); | |
cache.addEventListener('obsolete', logEvent, false); | |
cache.addEventListener('progress', logEvent, false); | |
cache.addEventListener('updateready', logEvent, false); | |
function logEvent(e) { | |
var online, status, type, message; | |
online = (navigator.onLine) ? 'yes' : 'no'; | |
status = cacheStatusValues[cache.status]; | |
type = e.type; | |
message = 'online: ' + online; | |
message+= ', event: ' + type; | |
message+= ', status: ' + status; | |
if (type == 'error' && navigator.onLine) { | |
message+= ' (prolly a syntax error in manifest)'; | |
} | |
console.log(message); | |
} | |
window.applicationCache.addEventListener( | |
'updateready', | |
function(){ | |
window.applicationCache.swapCache(); | |
console.log('swap cache has been called'); | |
}, | |
false | |
); | |
setInterval(function(){cache.update()}, 10000); |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment