July 30, 2011

bunjee bunjee
Lab Rat
120 posts

QDeclarativeEngine in a QThread

 

Greetings Qt enthusiasts,

I would like to “sandbox” the execution of a QML file.

Is it possible to run QDeclarativeEngine or QDeclarativeComponent inside a QThread.

The goal is to prevent my program to freeze if a malicious javascript infinite loop is executed.

Thanks.

B.A.

3 replies

July 31, 2011

mlong mlong
Mad Scientist
1517 posts
  • Certified Specialist
  • Qt DevNet Moderator

Since those are GUI-related classes, they must run in the main thread.

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July 31, 2011

Denis Kormalev Denis Kormalev
Lab Rat
1654 posts
  • Certified Specialist
  • Qt DevNet Moderator

You can try to use WorkerScript in your qml for heavy js calculations.

July 31, 2011

bunjee bunjee
Lab Rat
120 posts

Thanks guys.

@mlong: What happens if my QML is only based on QObject(s) ?

@Denis: The idea is to be able to load any QML file without risking to crash the app. Just like HTML in the browser. I cannot force anyone to use WorkerScript in their QML.

 
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