Re: Unable to load Module in embedded IE / OCX

On Wednesday, July 23, 2014 9:59:00 AM UTC+2, Johann Regier wrote:

Hi, Experts again

the Exception is thrown on last line - styleElement.appendChild( cssText );

cssText = Document.get().createTextNode("");
       
StyleElement styleElement = Document.get().createStyleElement();
styleElement.setType("text/css");
styleElement.appendChild(cssText);  

 
     
Is this not Part of GWT, to handle this ?

var css = document.createElement('style'); 
css.setAttribute('type', 'text/css'); 
var cssText = ''; 
if(css.styleSheet) { 
// IE does it this way 
   css.styleSheet.cssText = cssText 
} else { 
// everyone else does it this way 
css.appendChild(document.createTextNode(cssText)); 
}

If you used high-level APIs like StyleInjector, then yes GWT would handle that for you; but when a workaround is needed in 0.001% of the cases and would have a performance impact on the other 99.999%, then GWT let's you do it yourself. Node#appendChild(Node) is such a case: if, in IE, which is already slower than the other browsers (at least older versions that need the workaround), you'd have to check "if this looks like a style element and the node being appended is a text node, then do it that way" then your app would be sluggish and barely usable.

My advice is to change your code to use StyleInjector (or a CssResource).

 

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