venkata guddanti created CB-12193:
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Summary: cordova.js crashes windows app if there is no CoreWindow
Key: CB-12193
URL: https://issues.apache.org/jira/browse/CB-12193
Project: Apache Cordova
Issue Type: Bug
Components: Windows
Environment: Windows 10
Reporter: venkata guddanti
The back button support in cordova.js crashes windows app. In particular the
following line crashes:
var navigationManager =
Windows.UI.Core.SystemNavigationManager.getForCurrentView();
Putting try catch around it does not help. It crashes deep in the bowels of
native code. So I believe there should a fix similar to the following code in
WinJS base.js:
// If getForCurrentView fails, it is an indication that we are running in a
WebView without
// a CoreWindow where some WinRT APIs are not available. In this case, we
just treat it as
// if no WinRT APIs are available.
var isCoreWindowAvailable = false;
try{
_Global.Windows.UI.ViewManagement.InputPane.getForCurrentView();
isCoreWindowAvailable = true;
}
catch (e){
}
You can then skip setting up the back button handler if there is no CoreWindow:
if (isCoreWindowAvailable)
{
var navigationManager =
Windows.UI.Core.SystemNavigationManager.getForCurrentView();
...
}
I am aware that Cordova Windows 10 is not supported in a WebView (i.e. there is
no CoreWindow). But WinJS and majority of Windows APIs work. Cordova 4.0.0 used
to work as well, since there was no back button support in it. Plugins that
need CoreWindow (i.e. plugins that show native UI) like Camera etc have issues
without it. We have a framework where we proxy these plugins through the main
application Window (similar to iOS and Android).
Please do consider this and incorporate a fix in cordova for Windows 10
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