phonegap cordova API window.requestFileSystem() LocalFileSystem.PERSISTENT

Question

I'm using appgyver steroids (phonegap) and trying to save photos from the camera API to the app filespace so that it is not removed when I re-scan/re-load the app. I'm following the example from the cordova api docs (http://docs.phonegap.com/en/1.5.0/phonegap_file_file.md.html#FileSystem), but I never get a response from

window.requestileSystem(LocalFileSystem.PERSISTENT, ...)

The promise is never resolved/rejected. what am I doing wrong?

# in coffeescript
console.log "1. window.deviceReady. navigator.camera"+JSON.stringify(navigator.camera), null, 10000
_fsDeferred = $q.defer()
window.requestFileSystem(
  LocalFileSystem.PERSISTENT, 
  50000*1024, 
  (fs)-> 
    console.log "2. window.requestFileSystem, FS= "+JSON.stringify(fs), null, 10000
    _fsRoot = fs.root
    _fsDeferred.resolve(_fsRoot)
  (ev)->
    console.log "3. Error: requestFileSystem failed. "+ev.target.error.code, 'danger', 10000
    _fsDeferred.reject(ev)
)
_fsDeferred.promise.finally ()-> 
  console.log "4. window.requestFileSystem(), Deferred.promise.finally(), args"+JSON.stringify arguments, 'danger', 10000

i never get to #4, the promise is never resolved.

Answer 1

AppGyver employee here – I created a simplified repro from your code, and it seems to work fine. See repro here.

One error I was getting when working off your code is that JSON.stringify(fs) was failing because fs is a cyclic structure and JSON.stringify cannot serialize them. If you just do console.log(fs), you get the filesystem object fine (you might need to do a location.reload() in Safari Web Inspector to catch stuff that happens on application load).