Bug 35643 – [Qt] Use of 'serif' and 'sans-serif' in css overrides higher priority font families if present

• Component: New Bugs
• Status: RESOLVED WORKSFORME

[Tor Arne Vestbø]

This bug report originated from issue QTBUG-6730
http://bugreports.qt.nokia.com/browse/QTBUG-6730

--- Description ---

In css stylesheets, if you include the 'serif' or 'sans-serif' font families in your font hierarchy they will be used, regardless of priority.  For example:

<p>font-family: "Lucida Grande", "Lucida Sans Unicode", Trebuchet, Tahoma, sans-serif</p>

<p>Although the Lucida Grande font is present, Webkit uses the system sans-serif font for text rendering.  If you simply remove the sans-serif, the correct font (Lucida Grande) is used:</p>

<p>font-family: "Lucida Grande", "Lucida Sans Unicode", Trebuchet, Tahoma</p>

<p>Note that is behavior only occurs with the 'serif' and sans-serif (default) fonts.  Our workaround is just to not specify serif or sans-serif as backup fonts and just assume that one of the previously listed fonts will be present.  A few other comments:</p>

<ul class="alternate" type="square">
	<li>This bug only appears for Qt 4.6.0.  The css stylesheets worked properly on previous versions of Qt.</li>
	<li>The bug is identical on mac and windows.</li>
	<li>The bug does NOT appear with the latest version of Safari (4.0.3) which also uses WebKit .</li>
</ul>


--- Comments ---

Am I right that this issue with with Webkit, and not with the QTextDocument or the QWidget stylesheet?
In this case, it should be reported on bugs.webkit.org in the QtWebkit Qt component

[Tor Arne Vestbø]

Tried this in trunk on Mac OS X, with:

data:text/html,<p style="font-family: Futura, serif, sans-serif; font-size: 100pt">ABC</p>

And I still got futura "ABC".

[Mik B. Shvets]

I could reproduce this bug with following code: 
body {font:0.9em "Lucida Grande",  "Lucida Sans Unicode", Trebuchet, Helvetica, Arial,verdana, sans-serif; height: 100%;}

qt 4.6.2, Linux (tested in rekonq browser)

[Antonio Gomes]

(In reply to comment #2)
> I could reproduce this bug with following code: 
> body {font:0.9em "Lucida Grande",  "Lucida Sans Unicode", Trebuchet, Helvetica,
> Arial,verdana, sans-serif; height: 100%;}
> 
> qt 4.6.2, Linux (tested in rekonq browser)

would it be possible for you to re-test that agaisnt QtWebKit2.0 (or webkit within qt 4.7) once it is released and reopen the bug, if it fails?

[Mik B. Shvets]

Sure, no problem. I could build qt trunk and test if needed.