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Posted to issues@cordova.apache.org by "Jesse MacFadyen (JIRA)" <ji...@apache.org> on 2013/06/19 02:10:20 UTC
[jira] [Resolved] (CB-3621) Overriding Back Button behavior can
lead to inconsistent state
[ https://issues.apache.org/jira/browse/CB-3621?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jesse MacFadyen resolved CB-3621.
---------------------------------
Resolution: Fixed
> Overriding Back Button behavior can lead to inconsistent state
> ---------------------------------------------------------------
>
> Key: CB-3621
> URL: https://issues.apache.org/jira/browse/CB-3621
> Project: Apache Cordova
> Issue Type: Bug
> Components: WP7, WP8
> Affects Versions: 2.8.0
> Reporter: Jesse MacFadyen
> Assignee: Jesse MacFadyen
> Fix For: 2.9.0
>
>
> The current implementation does the following:
> - if the app has overridden the back button, by using document.addEventListener, then the backbutton event is passed to the page, and discarded.
> - else, the library will call window.history.back and if the page changes, discard the event.
> In all other cases the event will be passed to the OS and the app will exit.
> It is possible that an app is overriding the backbutton, but still needs the ability to exit at some point ( in response to a backbutton event ).
> If the page history has changed, then the framework would swallow the event, so it is impossible to get this behavior.
> We need to either add a programmatic way to exit the app in response to a back-button press, or find a way to signal the framework that even though I am overriding the backbutton, the app should still pass the event on to the OS.
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