Description Bruno Medeiros 2011-03-16 08:45:15 EDT

Build Identifier: 

In the Windows platform, when you use a DLTK based editor and then close it, you hear one or two browser click sounds. This problem will happen if a DLTK popup has been opened while using the editor, but otherwise there will be no click sound. The click sound is the same as the Internet Explorer click sound.

I investigated this a bit further, and it seem it is due to DLTK usage of the Browser control in BrowserInformationControl. Typically, one or two BrowserInformationControl's are created per editor instance, when hover popups appear. They will only be disposed when the editor is closed, and that's when the click sound is heard.
I compared DLTK's BrowserInformationControl with JFace's BrowserInformationControl, and it seems the difference might be due to this code:
   browser.setJavascriptEnabled(false);
which is present in JFace but not in DLTK. I tried that with the Browser SWT snippet code ( http://dev.eclipse.org/viewcvs/viewvc.cgi/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet128.java?view=co ) and it does seem to make the browser close click sound disappear, although I'm not sure why (probably just some IE strangeness)


Reproducible: Always

Steps to Reproduce:
1. open a DLTK based editor of any DLTK IDE
2. make a documentation hover popup appear
3. close the editor