[jira] [Commented] (CB-4034) Cordova fails to initialize if loading startPage from non application bundle location

["Guopeng Liang (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CB-4034?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13718575#comment-13718575 ] 

Guopeng Liang commented on CB-4034:
-----------------------------------

Hey, I've experienced the deviceready-event-not-firing issue and dug into the cordova.js file (Cordova 2.9.0).
I setup some trace in the cordova.js file and got:

2013-07-25 00:44:11.868 DailyCost[41959:a0b] WARN: {"type":"onCordovaReady","handlers":{},"state":2,"fireArgs":[],"numHandlers":0,"onHasSubscribersChange":null}
2013-07-25 00:44:11.868 DailyCost[41959:a0b] WARN: {"type":"onCordovaConnectionReady","handlers":{},"state":1,"fireArgs":null,"numHandlers":0,"onHasSubscribersChange":null}
2013-07-25 00:44:11.868 DailyCost[41959:a0b] WARN: {"type":"onDOMContentLoaded","handlers":{},"state":2,"fireArgs":[],"numHandlers":0,"onHasSubscribersChange":null}
2013-07-25 00:44:11.868 DailyCost[41959:a0b] WARN: {"type":"onCordovaInfoReady","handlers":{},"state":1,"fireArgs":null,"numHandlers":0,"onHasSubscribersChange":null}
2013-07-25 00:44:11.869 DailyCost[41959:a0b] WARN: {"type":"onCordovaInfoReady","handlers":{},"state":1,"fireArgs":null,"numHandlers":0,"onHasSubscribersChange":null}

Interestingly in my case, it seems that "onCordovaConnectionReady" is having trouble firing, thus blocking "deviceready" to fire.
When I do either of the following modifications, the "deviceready" event fires successfully:

#1. Add a setTimeout() around here:

setTimeout(function() {
        channel.join(function() {
            require('cordova').fireDocumentEvent('deviceready');
        }, channel.deviceReadyChannelsArray);
}, 0);

#2. Add an alert(1) right before the above code (without the setTimeout() wrapper).

Based on the above experiment, adding a small delay seems to solve the problem (maybe some synchronization issue in the event firing code?)
At this moment the #1 solution works fine for me.
I hope this information helps.
                
> Cordova fails to initialize if loading startPage from non application bundle location
> -------------------------------------------------------------------------------------
>
>                 Key: CB-4034
>                 URL: https://issues.apache.org/jira/browse/CB-4034
>             Project: Apache Cordova
>          Issue Type: Bug
>          Components: iOS
>    Affects Versions: 2.8.0
>         Environment: XCode 4.6.3
> iOS, Cordova 2.8, 2.9
>            Reporter: Aleksey Yashchenko
>
> When loading webview content from outside application bundle (from app Documents folder) Cordova fails to initialize correctly:
> - no deviceready event
> - some plugins are not working (e.g. Contacts plugin)
> There are several other unwanted effects, e.g. when accessign geolocation data user asked for permission twice - first time for the whole app (I assume by the system), second time for loaded page (by webview?).
> To reproduce the effect:
> - create fresh cordova project
> - built/run
> - from XCode Organized download application content bundle
> - create "Documents/www/*" folder with some tests inside (content of original www folder suits well)
> - change AppDelegate:
> {quote}
>     // Set your app's start page by setting the <content src='foo.html' /> tag in config.xml.
>     // If necessary, uncomment the line below to override it.
>     
>     self.viewController.startPage = [[NSURL fileURLWithPath:[[[MainViewController applicationDocumentsDirectory] stringByAppendingPathComponent:@"www"] stringByAppendingPathComponent:@"index.html"]] absoluteString];
>     self.viewController.wwwFolderName = [self.viewController.startPage stringByDeletingLastPathComponent];
> {quote}
> - see successful page load event in console log:
> {quote}
> ...Resetting plugins due to page load.
> 2013-06-27 21:54:13.329 HelloWorld[6483:907] Finished load of: file:///var/mobile/Applications/78E63640-C185-401A-9FEE-9B325F8B9881/Documents/www/index.html
> {quote}
> - deviceready event is not there

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