Bug 24350 – REGRESSION: Safari 4 breaks SPAW wysiwyg editor multiple instances

• Component: JavaScriptCore
• Status: RESOLVED FIXED

[Jon Fabritius]

SUMMARY

SPAW is one of the better free wysiwyg editors for web forms. Safari 4 fails to initialize more than one instance of the editor on a page, resulting in unusable text entry forms on all sites out there that use the editor this way.

STEPS TO REPRODUCE

1) Visit the product's multiple instance demo page at http://www.solmetra.com/en/disp.php/en_products/en_spaw/en_spaw_demo?page=2

2) Try using the topmost editor area.

EXPECTED RESULTS

Both editor areas, including all their tabbed pages, should initialize and be ready for text input.

ACTUAL RESULTS

Only one instance of the editor gets initialized, when there are more than one. The Javascript engine throws a number of errors in the console and the other editors remain inaccessible.

REGRESSION

Works as expected in Safari 3, Chrome 1.0 , Firefox 2-3.1, Opera 9+ and IE 6-8.

( This was also filed as rdar://6630909 )

[Jon Fabritius]

Textareas, rather than 'forms' to be exact.

[Alexey Proskuryakov]

With ToT, I'm also getting toolbar misplaced.

[Alexey Proskuryakov]

<rdar://problem/6674182>

[Alexey Proskuryakov]

> With ToT, I'm also getting toolbar misplaced.

Actually not, that's a feature - I expected the toolbar to be positioned above the text input area, but it floats freely in fact.

[Alexey Proskuryakov]

Here is the failing function:

SpawEditor.prototype.onLoadHookup = function()
{
  var spaw_tmpstr="";
  if (window.onload != null) 
  {
    spaw_tmpstr = window.onload.toString();
    var spaw_i = spaw_tmpstr.indexOf("{") + 2;
    spaw_tmpstr = spaw_tmpstr.substr(spaw_i,spaw_tmpstr.length-spaw_i-2);
  }
  window.onload = new Function(this.name+'_obj.initialize();'+spaw_tmpstr);   
}

The problem is that Function.toString() works differently now, so this produces a broken script.

The general issue with Function.toString() is tracked as bug 18990.

[Alexey Proskuryakov]

Created attachment 28753 [details]
reduction

[Cameron Zwarich (cpst)]

I'll take this bug.

[Cameron Zwarich (cpst)]

Created attachment 28774 [details]
Proposed patch

Not having a newline after the opening "{" is throwing this line off:

    var spaw_i = spaw_tmpstr.indexOf("{") + 2;

The fix is to add a newline after the "{". I'll make a layout test and post it for review.

[Cameron Zwarich (cpst)]

Created attachment 28777 [details]
Proposed patch (with tests)

[Geoffrey Garen]

Comment on attachment 28777 [details]
Proposed patch (with tests)

r=me

[Cameron Zwarich (cpst)]

Landed in r41851.