Passing context to JavaScript callback

Question

I have a Cordova/PhoneGap application where I create directories on the phone persistent storage. I have a problem passing the context to the Cordova plugin API. I use the DirectoryEntry.getDirectory() method who receives two callbacks - one for success and the second is for error. The success method signature is function success(dirEntry) { ... }, where I want to use it like this:

var x = // some data collected
rootdor.getDirectory("mydir",  {create: true, exclusive: false}, success, fail); 
// store x in the retrieved/created directory, can be done in the success method

I need help with the last part - how do I pass reference to x in the success callback.

Working on it... I'm new to JavaScript at this level (haven't used it for some time now) and besides - others can benefit too. — David Rabinowitz, Nov 24 '13 at 21:32
If I understand correctly, you need to address the correct context? Did you take a look for example here http://stackoverflow.com/questions/2130241/pass-correct-this-context-to-settimeout-callback ? — sleepwalker, Nov 24 '13 at 22:16

score 0 · Answer 1 · answered Nov 25 '13 at 09:35

0

Ok, I've learned about JavaScript scopes which solves the case. The question referred by @sleepwalker was a great help.

Also if someone is interested, I suggest to have a look at the implementation of onPhotoCaptureSuccess() in this code.

answered Nov 25 '13 at 09:35

David Rabinowitz

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Passing context to JavaScript callback

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