FireFox Crashes With This JS Code

[Frederick]

When using a TUniURLFrame in FireFox and calling the following code to trap an ESCAPE key press,

urlFrame.JSInterface.JSCode(#1'.iframe.contentDocument.addEventListener("keydown", function(e){ajaxRequest('+ Self.WebForm.JSForm.JSName +', "keydown", ["key="+e.keyCode])});')

FireFox throws the attached Ajax error. The error does not show in other browsers.

How do I work around this problem?

--
Frederick
(UniGUI Complete - Professional Edition 1.95.0.1577)
 

[Sherzod]

5 minutes ago, Frederick said:

urlFrame.JSInterface.JSCode(#1'.iframe.contentDocument.addEventListener("keydown", function(e){ajaxRequest('+ Self.WebForm.JSForm.JSName +', "keydown", ["key="+e.keyCode])});')

Hello,

Just to clarify — where exactly are you assigning this code?

I’d recommend assigning this code inside the OnFrameLoaded event of TUniURLFrame. This way, you ensure the iframe content is fully accessible, and you won’t run into the null reference issue.

[Frederick]

This code is called in the OnFrameLoaded event.

[Sherzod]

Try with defer then...

[Frederick]

Where do I set the defer setting?

[Farshad Mohajeri]

defer is a JS method to delay calling of code.

[Sherzod]

2 hours ago, Frederick said:

Where do I set the defer setting?

urlFrame.JSInterface.JSCode(
  'Ext.defer(function(){' +
    '#1.iframe.contentDocument.addEventListener("keydown", function(e){' +
      'ajaxRequest(' + Self.WebForm.JSForm.JSName + ', "keydown", ["key="+e.keyCode]);' +
    '});' +
  '}, 300);'
);

 

[irigsoft]

4 hours ago, Farshad Mohajeri said:

defer is a JS method to delay calling of code.

Is it possible to use defer on Form.OnCreate event ?

I want to slow down execution of javascript until all element are created .

[Frederick]

5 hours ago, Sherzod said:

urlFrame.JSInterface.JSCode(
  'Ext.defer(function(){' +
    '#1.iframe.contentDocument.addEventListener("keydown", function(e){' +
      'ajaxRequest(' + Self.WebForm.JSForm.JSName + ', "keydown", ["key="+e.keyCode]);' +
    '});' +
  '}, 300);'
);

 

Thanks for the code but, I am now getting the following error in Firefox. If it is not Firefox, I get the second error.

[Sherzod]

urlFrame.JSInterface.JSCode(
  'Ext.defer(function(){'#1'.iframe.contentDocument.addEventListener("keydown", function(e){' +
      'ajaxRequest(' + Self.WebForm.JSForm.JSName + ', "keydown", ["key="+e.keyCode]);' +
    '});' +
  '}, 300);'
);

 

[Frederick]

Thanks. This works for all browsers.